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path: root/widgets/text/e-text.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-text.c - Text item for evolution.
 * Copyright 2000, 2001, Ximian, Inc.
 *
 * Authors:
 *   Chris Lahey <clahey@ximian.com>
 *   Jon Trowbridge <trow@ximian.com>
 *
 * A majority of code taken from:
 *
 * Text item type for GnomeCanvas widget
 *
 * GnomeCanvas is basically a port of the Tk toolkit's most excellent
 * canvas widget.  Tk is copyrighted by the Regents of the University
 * of California, Sun Microsystems, and other parties.
 *
 * Copyright (C) 1998 The Free Software Foundation
 *
 * Author: Federico Mena <federico@nuclecu.unam.mx>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License, version 2, as published by the Free Software Foundation.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#include <config.h>

#include "e-text.h"

#include <math.h>
#include <ctype.h>
#include <string.h>
#include <glib-object.h>
#include <gdk/gdkx.h> /* for BlackPixel */
#include <gtk/gtkclipboard.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkselection.h>
#include <gtk/gtkstock.h>
#include <gtk/gtkwindow.h>
#include <gtk/gtktypebuiltins.h>
#include <gtk/gtkmenu.h>
#include <gtk/gtkimagemenuitem.h>
#include <gtk/gtkimmulticontext.h>
#include <gtk/gtkmenuitem.h>
#include <gtk/gtkseparatormenuitem.h>
#include <libgnomecanvas/gnome-canvas-rect-ellipse.h>
#include <libgnome/gnome-i18n.h>
#include "gal/util/e-util.h"
#include "gal/widgets/e-canvas.h"
#include "gal/widgets/e-canvas-utils.h"
#include "gal/widgets/e-unicode.h"
#include "gal/util/e-text-event-processor-emacs-like.h"
#include "gal/util/e-util.h"
#include <libart_lgpl/art_affine.h>
#include <libart_lgpl/art_rgb.h>
#include <libart_lgpl/art_rgb_bitmap_affine.h>

#define PARENT_TYPE (gnome_canvas_item_get_type())

#define BORDER_INDENT 3
#define d(x)

enum {
    E_TEXT_CHANGED,
    E_TEXT_ACTIVATE,
    E_TEXT_KEYPRESS,
    E_TEXT_POPULATE_POPUP,
    E_TEXT_STYLE_SET,
    E_TEXT_LAST_SIGNAL
};

static GQuark e_text_signals[E_TEXT_LAST_SIGNAL] = { 0 };

/* Object argument IDs */
enum {
    PROP_0,
    PROP_MODEL,
    PROP_EVENT_PROCESSOR,
    PROP_TEXT,
    PROP_BOLD,
    PROP_STRIKEOUT,
    PROP_ANCHOR,
    PROP_JUSTIFICATION,
    PROP_CLIP_WIDTH,
    PROP_CLIP_HEIGHT,
    PROP_CLIP,
    PROP_FILL_CLIP_RECTANGLE,
    PROP_X_OFFSET,
    PROP_Y_OFFSET,
    PROP_FILL_COLOR,
    PROP_FILL_COLOR_GDK,
    PROP_FILL_COLOR_RGBA,
    PROP_FILL_STIPPLE,
    PROP_TEXT_WIDTH,
    PROP_TEXT_HEIGHT,
    PROP_EDITABLE,
    PROP_USE_ELLIPSIS,
    PROP_ELLIPSIS,
    PROP_LINE_WRAP,
    PROP_BREAK_CHARACTERS,
    PROP_MAX_LINES,
    PROP_WIDTH,
    PROP_HEIGHT,
    PROP_DRAW_BORDERS,
    PROP_ALLOW_NEWLINES,
    PROP_DRAW_BACKGROUND,
    PROP_DRAW_BUTTON,
    PROP_CURSOR_POS,
    PROP_IM_CONTEXT,
    PROP_HANDLE_POPUP
};

static void e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data);

static void e_text_text_model_changed(ETextModel *model, EText *text);
static void e_text_text_model_reposition (ETextModel *model, ETextModelReposFn fn, gpointer repos_data, gpointer data);

static void _get_tep(EText *text);

static void calc_height (EText *text);

static gboolean show_pango_rectangle (EText *text, PangoRectangle rect);

static void e_text_do_popup (EText *text, GdkEventButton *button, int position);

static void e_text_update_primary_selection (EText *text);
static void e_text_paste (EText *text, GdkAtom selection);
static void e_text_insert(EText *text, const char *string);

/* GtkEditable Methods */
static void e_text_editable_do_insert_text (GtkEditable    *editable,
                        const gchar    *text,
                        gint            length,
                        gint           *position);
static void e_text_editable_do_delete_text (GtkEditable    *editable,
                        gint            start_pos,
                        gint            end_pos);
static gchar* e_text_editable_get_chars (GtkEditable    *editable,
                     gint            start_pos,
                     gint            end_pos);
static void e_text_editable_set_selection_bounds (GtkEditable    *editable,
                          gint            start_pos,
                          gint            end_pos);
static gboolean e_text_editable_get_selection_bounds (GtkEditable    *editable,
                              gint           *start_pos,
                              gint           *end_pos);
static void e_text_editable_set_position (GtkEditable    *editable,
                      gint            position);
static gint e_text_editable_get_position (GtkEditable    *editable);
                   
/* IM Context Callbacks */
static void     e_text_commit_cb               (GtkIMContext *context,
                        const gchar  *str,
                        EText        *text);
static gboolean e_text_retrieve_surrounding_cb (GtkIMContext *context,
                        EText        *text);
static gboolean e_text_delete_surrounding_cb   (GtkIMContext *context,
                        gint          offset,
                        gint          n_chars,
                        EText        *text);

static GnomeCanvasItemClass *parent_class;
static GdkAtom clipboard_atom = GDK_NONE;



/* Dispose handler for the text item */


static void
e_text_style_set (EText *text, GtkStyle *previous_style)
{
    if ( text->line_wrap ) {
        text->needs_split_into_lines = 1;
    } else {
        text->needs_calc_height = 1;
    }
    e_canvas_item_request_reflow (GNOME_CANVAS_ITEM (text));
}

static void
e_text_dispose (GObject *object)
{
    EText *text;

    g_return_if_fail (object != NULL);
    g_return_if_fail (E_IS_TEXT (object));

    text = E_TEXT (object);

    if (text->tooltip_owner)
        e_canvas_hide_tooltip (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas));
    text->tooltip_owner = 0;

    if (text->model_changed_signal_id)
        g_signal_handler_disconnect (text->model, 
                         text->model_changed_signal_id);
    text->model_changed_signal_id = 0;

    if (text->model_repos_signal_id)
        g_signal_handler_disconnect (text->model,
                         text->model_repos_signal_id);
    text->model_repos_signal_id = 0;

    if (text->model)
        g_object_unref(text->model);
    text->model = NULL;

    if (text->tep_command_id)
        g_signal_handler_disconnect(text->tep,
                        text->tep_command_id);
    text->tep_command_id = 0;

    if (text->tep)
        g_object_unref (text->tep);
    text->tep = NULL;

    g_free (text->revert);
    text->revert = NULL;

    if (text->stipple)
        gdk_bitmap_unref (text->stipple);
    text->stipple = NULL;

    if (text->timeout_id) {
        g_source_remove(text->timeout_id);
        text->timeout_id = 0;
    }
    
    if (text->timer) {
        g_timer_stop(text->timer);
        g_timer_destroy(text->timer);
        text->timer = NULL;
    }
                
    if ( text->tooltip_timeout ) {
        gtk_timeout_remove (text->tooltip_timeout);
        text->tooltip_timeout = 0;
    }

    if ( text->dbl_timeout ) {
        gtk_timeout_remove (text->dbl_timeout);
        text->dbl_timeout = 0;
    }

    if ( text->tpl_timeout ) {
        gtk_timeout_remove (text->tpl_timeout);
        text->tpl_timeout = 0;
    }

    if (text->layout) {
        g_object_unref (text->layout);
        text->layout = NULL;
    }

    if (text->im_context) {
        g_signal_handlers_disconnect_matched (text->im_context,
                              G_SIGNAL_MATCH_DATA,
                              0, 0, NULL,
                              NULL, text);
        g_object_unref (text->im_context);
        text->im_context = NULL;
    }

    if (G_OBJECT_CLASS (parent_class)->dispose)
        (* G_OBJECT_CLASS (parent_class)->dispose) (object);
}

static void
reset_layout_attrs (EText *text)
{
    PangoAttrList *attrs = NULL;
    int object_count;

    if (text->layout == NULL)
        return;

    object_count = e_text_model_object_count (text->model);

    if (text->bold || text->strikeout || object_count > 0) {
        int length = 0;
        int i;

        attrs = pango_attr_list_new ();

        for (i = 0; i < object_count; i++) {
            int start_pos, end_pos;
            PangoAttribute *attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE);

            e_text_model_get_nth_object_bounds (text->model, i, &start_pos, &end_pos);

            attr->start_index = g_utf8_offset_to_pointer (text->text, start_pos) - text->text;
            attr->end_index = g_utf8_offset_to_pointer (text->text, end_pos) - text->text;

            pango_attr_list_insert (attrs, attr);
        }

        if (text->bold || text->strikeout)
            length = strlen (text->text);

        if (text->bold) {
            PangoAttribute *attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
            attr->start_index = 0;
            attr->end_index = length;

            pango_attr_list_insert_before (attrs, attr);
        }
        if (text->strikeout) {
            PangoAttribute *attr = pango_attr_strikethrough_new (TRUE);
            attr->start_index = 0;
            attr->end_index = length;

            pango_attr_list_insert_before (attrs, attr);
        }
    }
    pango_layout_set_attributes (text->layout, attrs);
    if (attrs)
        pango_attr_list_unref (attrs);
    calc_height (text);
}

static void
create_layout (EText *text)
{
    GnomeCanvasItem *item = GNOME_CANVAS_ITEM (text);

    if (text->layout)
        return;

    text->layout = gtk_widget_create_pango_layout (GTK_WIDGET (item->canvas), text->text);
    if (text->line_wrap)
        pango_layout_set_width (text->layout, text->clip_width < 0 ? -1 : text->clip_width * PANGO_SCALE);
    reset_layout_attrs (text);
}

static void
reset_layout (EText *text)
{
    if (text->layout == NULL) {
        create_layout (text);
    }
    else {
        pango_layout_set_text (text->layout, text->text, -1);
        reset_layout_attrs (text);
    }

    if (!text->button_down) {
        PangoRectangle strong_pos, weak_pos;
        char *offs = g_utf8_offset_to_pointer (text->text, text->selection_start);

        pango_layout_get_cursor_pos (text->layout, offs - text->text, &strong_pos, &weak_pos);

        if (strong_pos.x != weak_pos.x ||
            strong_pos.y != weak_pos.y ||
            strong_pos.width != weak_pos.width ||
            strong_pos.height != weak_pos.height)
            show_pango_rectangle (text, weak_pos);

        show_pango_rectangle (text, strong_pos);
    }
}

static void
e_text_text_model_changed (ETextModel *model, EText *text)
{
    gint model_len = e_text_model_get_text_length (model);
    text->text = e_text_model_get_text(model);

    /* Make sure our selection doesn't extend past the bounds of our text. */
    text->selection_start = CLAMP (text->selection_start, 0, model_len);
    text->selection_end   = CLAMP (text->selection_end,   0, model_len);

    text->needs_reset_layout = 1;
    text->needs_split_into_lines = 1;
    text->needs_redraw = 1;
    e_canvas_item_request_reflow (GNOME_CANVAS_ITEM(text));
    gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (text));

    g_signal_emit (text, e_text_signals[E_TEXT_CHANGED], 0);
}

static void
e_text_text_model_reposition (ETextModel *model, ETextModelReposFn fn, gpointer repos_data, gpointer user_data)
{
    EText *text = E_TEXT (user_data);
    gint model_len = e_text_model_get_text_length (model);

    text->selection_start = fn (text->selection_start, repos_data);
    text->selection_end   = fn (text->selection_end,   repos_data);

    /* Our repos function should make sure we don't overrun the buffer, but it never
       hurts to be paranoid. */
    text->selection_start = CLAMP (text->selection_start, 0, model_len);
    text->selection_end   = CLAMP (text->selection_end,   0, model_len);

    if (text->selection_start > text->selection_end) {
        gint tmp = text->selection_start;
        text->selection_start = text->selection_end;
        text->selection_end = tmp;
    }
}

static void
get_bounds (EText *text, double *px1, double *py1, double *px2, double *py2)
{
    GnomeCanvasItem *item;
    double wx, wy, clip_width, clip_height;

    item = GNOME_CANVAS_ITEM (text);

    /* Get canvas pixel coordinates for text position */

    wx = 0;
    wy = 0;
    gnome_canvas_item_i2w (item, &wx, &wy);
    gnome_canvas_w2c (item->canvas, wx + text->xofs, wy + text->yofs, &text->cx, &text->cy);
    gnome_canvas_w2c (item->canvas, wx, wy, &text->clip_cx, &text->clip_cy);

    if (text->clip_width < 0)
        clip_width = text->width;
    else
        clip_width = text->clip_width;

    if ( text->clip_height < 0 )
        clip_height = text->height;
    else
        clip_height = text->clip_height;

    /* Get canvas pixel coordinates for clip rectangle position */
    text->clip_cwidth = clip_width * item->canvas->pixels_per_unit;
    text->clip_cheight = clip_height * item->canvas->pixels_per_unit;

    /* Anchor text */

    switch (text->anchor) {
    case GTK_ANCHOR_NW:
    case GTK_ANCHOR_W:
    case GTK_ANCHOR_SW:
        break;

    case GTK_ANCHOR_N:
    case GTK_ANCHOR_CENTER:
    case GTK_ANCHOR_S:
        text->cx -= text->width / 2;
        text->clip_cx -= text->clip_cwidth / 2;
        break;

    case GTK_ANCHOR_NE:
    case GTK_ANCHOR_E:
    case GTK_ANCHOR_SE:
        text->cx -= text->width;
        text->clip_cx -= text->clip_cwidth;
        break;
    }

    switch (text->anchor) {
    case GTK_ANCHOR_NW:
    case GTK_ANCHOR_N:
    case GTK_ANCHOR_NE:
        break;

    case GTK_ANCHOR_W:
    case GTK_ANCHOR_CENTER:
    case GTK_ANCHOR_E:
        text->cy -= text->height / 2;
        text->clip_cy -= text->clip_cheight / 2;
        break;

    case GTK_ANCHOR_SW:
    case GTK_ANCHOR_S:
    case GTK_ANCHOR_SE:
        text->cy -= text->height;
        text->clip_cy -= text->clip_cheight;
        break;
    }

    text->text_cx = text->cx;
    text->text_cy = text->cy;

    if (text->draw_borders) {
        text->text_cx += BORDER_INDENT;
        text->text_cy += BORDER_INDENT;
    }

    /* Bounds */

    if (text->clip) {
        *px1 = text->clip_cx;
        *py1 = text->clip_cy;
        *px2 = text->clip_cx + text->clip_cwidth;
        *py2 = text->clip_cy + text->clip_cheight;
    } else {
        *px1 = text->cx;
        *py1 = text->cy;
        *px2 = text->cx + text->width;
        *py2 = text->cy + text->height;
    }
}

static void
calc_height (EText *text)
{
    GnomeCanvasItem *item;
    int old_height;
    int old_width;
    int width = 0;
    int height = 0;

    item = GNOME_CANVAS_ITEM (text);

    /* Calculate text dimensions */

    old_height = text->height;
    old_width = text->width;

    if (text->layout)
        pango_layout_get_pixel_size (text->layout, &width, &height);

    text->height = height;
    text->width = width;

    if (old_height != text->height || old_width != text->width)
        e_canvas_item_request_parent_reflow(item);
}

static void
calc_ellipsis (EText *text)
{
#warning "AIEEEE FIX ME.  a pango layout per calc_ellipsis sucks"
    int width;
    PangoLayout *layout = gtk_widget_create_pango_layout (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas),
                                  text->ellipsis ? text->ellipsis : "...");
    pango_layout_get_size (layout, &width, NULL);

    text->ellipsis_width = width;

    g_object_unref (layout);
}

static void
split_into_lines (EText *text)
{
    text->num_lines = pango_layout_get_line_count (text->layout);
}

/* Convenience function to set the text's GC's foreground color */
static void
set_text_gc_foreground (EText *text)
{
    if (!text->gc)
        return;

    gdk_gc_set_foreground (text->gc, &text->color);
}

/* Sets the stipple pattern for the text */
static void
set_stipple (EText *text, GdkBitmap *stipple, int reconfigure)
{
    if (text->stipple && !reconfigure)
        gdk_bitmap_unref (text->stipple);

    text->stipple = stipple;
    if (stipple && !reconfigure)
        gdk_bitmap_ref (stipple);

    if (text->gc) {
        if (stipple) {
            gdk_gc_set_stipple (text->gc, stipple);
            gdk_gc_set_fill (text->gc, GDK_STIPPLED);
        } else
            gdk_gc_set_fill (text->gc, GDK_SOLID);
    }
}

/* Set_arg handler for the text item */
static void
e_text_set_property (GObject *object,
                    guint prop_id,
                    const GValue *value,
                    GParamSpec *pspec)
{
    GnomeCanvasItem *item;
    EText *text;
    GdkColor color = { 0, 0, 0, 0, };
    GdkColor *pcolor;
    gboolean color_changed;
    int have_pixel;
    
    gboolean needs_update = 0;
    gboolean needs_reflow = 0;

    item = GNOME_CANVAS_ITEM (object);
    text = E_TEXT (object);

    color_changed = FALSE;
    have_pixel = FALSE;

    switch (prop_id) {
    case PROP_MODEL:

        if ( text->model_changed_signal_id )
            g_signal_handler_disconnect (text->model,
                         text->model_changed_signal_id);
        
        if ( text->model_repos_signal_id )
            g_signal_handler_disconnect (text->model,
                             text->model_repos_signal_id);

        g_object_unref (text->model);
        text->model = E_TEXT_MODEL (g_value_get_object (value));
        g_object_ref (text->model);

        text->model_changed_signal_id =
            g_signal_connect (text->model,
                      "changed",
                      G_CALLBACK (e_text_text_model_changed),
                      text);

        text->model_repos_signal_id =
            g_signal_connect (text->model,
                      "reposition",
                      G_CALLBACK (e_text_text_model_reposition),
                      text);

        text->text = e_text_model_get_text(text->model);
        g_signal_emit (text, e_text_signals[E_TEXT_CHANGED], 0);

        text->needs_split_into_lines = 1;
        needs_reflow = 1;
        break;

    case PROP_EVENT_PROCESSOR:
        if ( text->tep && text->tep_command_id )
            g_signal_handler_disconnect(text->tep,
                            text->tep_command_id);
        if ( text->tep ) {
            g_object_unref(text->tep);
        }
        text->tep = E_TEXT_EVENT_PROCESSOR(g_value_get_object (value));
        g_object_ref(text->tep);
        text->tep_command_id = 
            g_signal_connect(text->tep,
                     "command",
                     G_CALLBACK(e_text_command),
                     text);
        if (!text->allow_newlines)
            g_object_set (text->tep,
                      "allow_newlines", FALSE,
                      NULL);
        break;

    case PROP_TEXT:
        e_text_model_set_text(text->model, g_value_get_string (value));
        break;

    case PROP_BOLD:
        text->bold = g_value_get_boolean (value);

        text->needs_redraw = 1;
        text->needs_recalc_bounds = 1;
        if ( text->line_wrap )
            text->needs_split_into_lines = 1;
        else {
            text->needs_calc_height = 1;
        }
        needs_update = 1;
        needs_reflow = 1;
        break;

    case PROP_STRIKEOUT:
        text->strikeout = g_value_get_boolean (value);
        text->needs_redraw = 1;
        needs_update = 1;
        break;

    case PROP_ANCHOR:
        text->anchor = g_value_get_enum (value);
        text->needs_recalc_bounds = 1;
        needs_update = 1;
        break;

    case PROP_JUSTIFICATION:
        text->justification = g_value_get_enum (value);
        text->needs_redraw = 1;
        needs_update = 1;
        break;

    case PROP_CLIP_WIDTH:
        text->clip_width = fabs (g_value_get_double (value));
        calc_ellipsis (text);
        if ( text->line_wrap )
            text->needs_split_into_lines = 1;
        else {
            text->needs_calc_height = 1;
        }
        needs_reflow = 1;
        break;

    case PROP_CLIP_HEIGHT:
        text->clip_height = fabs (g_value_get_double (value));
        text->needs_recalc_bounds = 1;
        /* toshok: kind of a hack - set needs_reset_layout
           here so when something about the style/them
           changes, we redraw the text at the proper size/with
           the proper font. */
        text->needs_reset_layout = 1;
        needs_reflow = 1;
        break;

    case PROP_CLIP:
        text->clip = g_value_get_boolean (value);
        calc_ellipsis (text);
        if ( text->line_wrap )
            text->needs_split_into_lines = 1;
        else {
            text->needs_calc_height = 1;
        }
        needs_reflow = 1;
        break;

    case PROP_FILL_CLIP_RECTANGLE:
        text->fill_clip_rectangle = g_value_get_boolean (value);
        needs_update = 1;
        break;

    case PROP_X_OFFSET:
        text->xofs = g_value_get_double (value);
        text->needs_recalc_bounds = 1;
        needs_update = 1;
        break;

    case PROP_Y_OFFSET:
        text->yofs = g_value_get_double (value);
        text->needs_recalc_bounds = 1;
        needs_update = 1;
        break;

        case PROP_FILL_COLOR:
        if (g_value_get_string (value))
            gdk_color_parse (g_value_get_string (value), &color);

        text->rgba = ((color.red & 0xff00) << 16 |
                  (color.green & 0xff00) << 8 |
                  (color.blue & 0xff00) |
                  0xff);
        color_changed = TRUE;
        break;

    case PROP_FILL_COLOR_GDK:
        pcolor = g_value_get_boxed (value);
        if (pcolor) {
            color = *pcolor;
        }

        text->rgba = ((color.red & 0xff00) << 16 |
                  (color.green & 0xff00) << 8 |
                  (color.blue & 0xff00) |
                  0xff);
        color_changed = TRUE;
        break;

        case PROP_FILL_COLOR_RGBA:
        text->rgba = g_value_get_uint (value);
        color.red = ((text->rgba >> 24) & 0xff) * 0x101;
        color.green = ((text->rgba >> 16) & 0xff) * 0x101;
        color.blue = ((text->rgba >> 8) & 0xff) * 0x101;
        color_changed = TRUE;
        break;

    case PROP_FILL_STIPPLE:
        set_stipple (text, g_value_get_object (value), FALSE);
        text->needs_redraw = 1;
        needs_update = 1;
        break;

    case PROP_EDITABLE:
        text->editable = g_value_get_boolean (value);
        text->needs_redraw = 1;
        needs_update = 1;
        break;

    case PROP_USE_ELLIPSIS:
        text->use_ellipsis = g_value_get_boolean (value);
        needs_reflow = 1;
        break;

    case PROP_ELLIPSIS:
        if (text->ellipsis)
            g_free (text->ellipsis);

        text->ellipsis = g_strdup (g_value_get_string (value));
        calc_ellipsis (text);
        needs_reflow = 1;
        break;

    case PROP_LINE_WRAP:
        text->line_wrap = g_value_get_boolean (value);
        if (text->line_wrap) {
            if (text->layout) {
                pango_layout_set_width (text->layout, text->width < 0 ? -1 : text->width * PANGO_SCALE);
            }
        }
        text->needs_split_into_lines = 1;
        needs_reflow = 1;
        break;
        
    case PROP_BREAK_CHARACTERS:
        if ( text->break_characters ) {
            g_free(text->break_characters);
            text->break_characters = NULL;
        }
        if ( g_value_get_string (value) )
            text->break_characters = g_strdup( g_value_get_string (value) );
        text->needs_split_into_lines = 1;
        needs_reflow = 1;
        break;

    case PROP_MAX_LINES:
        text->max_lines = g_value_get_int (value);
        text->needs_split_into_lines = 1;
        needs_reflow = 1;
        break;

    case PROP_WIDTH:
        text->clip_width = fabs (g_value_get_double (value));
        calc_ellipsis (text);
        if ( text->line_wrap ) {
            if (text->layout) {
                pango_layout_set_width (text->layout, text->width < 0 ? -1 : text->width * PANGO_SCALE);
            }
            text->needs_split_into_lines = 1;
        }
        else {
            text->needs_calc_height = 1;
        }
        needs_reflow = 1;
        break;
        
    case PROP_DRAW_BORDERS:
        if (text->draw_borders != g_value_get_boolean (value)) {
            text->draw_borders = g_value_get_boolean (value);
            text->needs_calc_height = 1;
            text->needs_redraw = 1;
            needs_reflow = 1;
            needs_update = 1;
        }
        break;

    case PROP_DRAW_BACKGROUND:
        if (text->draw_background != g_value_get_boolean (value)) {
            text->draw_background = g_value_get_boolean (value);
            text->needs_redraw = 1;
        }
        break;

    case PROP_DRAW_BUTTON:
        if (text->draw_button !=  g_value_get_boolean (value)) {
            text->draw_button = g_value_get_boolean (value);
            text->needs_redraw = 1;
        }
        break;

    case PROP_ALLOW_NEWLINES:
        text->allow_newlines = g_value_get_boolean (value);
        _get_tep(text);
        g_object_set (text->tep,
                  "allow_newlines", g_value_get_boolean (value),
                  NULL);
        break;

    case PROP_CURSOR_POS: {
        ETextEventProcessorCommand command;

        command.action = E_TEP_MOVE;
        command.position = E_TEP_VALUE;
        command.value = g_value_get_int (value);
        command.time = GDK_CURRENT_TIME;
        e_text_command (text->tep, &command, text);
        break;
    }

    case PROP_IM_CONTEXT:
        if (text->im_context)
            g_object_unref (text->im_context);

        text->im_context = g_value_get_object (value);
        if (text->im_context)
            g_object_ref (text->im_context);

        text->need_im_reset = FALSE;
        break;

    case PROP_HANDLE_POPUP:
        text->handle_popup = g_value_get_boolean (value);
        break;

    default:
        return;
    }

    if (color_changed) {
               GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (item->canvas));

           text->color = color;
               gdk_rgb_find_color (colormap, &text->color);

           if (!item->canvas->aa)
               set_text_gc_foreground (text);

           text->needs_redraw = 1;
           needs_update = 1;
    }

    if ( needs_reflow )
        e_canvas_item_request_reflow (item);
    if ( needs_update )
        gnome_canvas_item_request_update (item);
}

/* Get_arg handler for the text item */
static void
e_text_get_property (GObject *object,
                    guint prop_id,
                    GValue *value,
                    GParamSpec *pspec)
{
    EText *text;

    text = E_TEXT (object);

    switch (prop_id) {
    case PROP_MODEL:
        g_value_set_object (value, text->model);
        break;

    case PROP_EVENT_PROCESSOR:
        _get_tep(text);
        g_value_set_object (value, text->tep);
        break;

    case PROP_TEXT:
        g_value_set_string (value, g_strdup (text->text));
        break;

    case PROP_BOLD:
        g_value_set_boolean (value, text->bold);
        break;

    case PROP_STRIKEOUT:
        g_value_set_boolean (value, text->strikeout);
        break;

    case PROP_ANCHOR:
        g_value_set_enum (value, text->anchor);
        break;

    case PROP_JUSTIFICATION:
        g_value_set_enum (value, text->justification);
        break;

    case PROP_CLIP_WIDTH:
        g_value_set_double (value, text->clip_width);
        break;

    case PROP_CLIP_HEIGHT:
        g_value_set_double (value, text->clip_height);
        break;

    case PROP_CLIP:
        g_value_set_boolean (value, text->clip);
        break;

    case PROP_FILL_CLIP_RECTANGLE:
        g_value_set_boolean (value, text->fill_clip_rectangle);
        break;

    case PROP_X_OFFSET:
        g_value_set_double (value, text->xofs);
        break;

    case PROP_Y_OFFSET:
        g_value_set_double (value, text->yofs);
        break;

    case PROP_FILL_COLOR_GDK:
        g_value_set_boxed (value, &text->color);
        break;

    case PROP_FILL_COLOR_RGBA:
        g_value_set_uint (value, text->rgba);
        break;

    case PROP_FILL_STIPPLE:
        g_value_set_object (value, text->stipple);
        break;

    case PROP_TEXT_WIDTH:
        g_value_set_double (value, text->width / text->item.canvas->pixels_per_unit);
        break;

    case PROP_TEXT_HEIGHT:
        g_value_set_double (value, text->height / text->item.canvas->pixels_per_unit);
        break;
        
    case PROP_EDITABLE:
        g_value_set_boolean (value, text->editable);
        break;

    case PROP_USE_ELLIPSIS:
        g_value_set_boolean (value, text->use_ellipsis);
        break;

    case PROP_ELLIPSIS:
        g_value_set_string (value, g_strdup (text->ellipsis));
        break;

    case PROP_LINE_WRAP:
        g_value_set_boolean (value, text->line_wrap);
        break;
        
    case PROP_BREAK_CHARACTERS:
        g_value_set_string (value, g_strdup (text->break_characters));
        break;

    case PROP_MAX_LINES:
        g_value_set_int (value, text->max_lines);
        break;

    case PROP_WIDTH:
        g_value_set_double (value, text->clip_width);
        break;

    case PROP_HEIGHT:
        g_value_set_double (value, text->clip && text->clip_height != -1 ? text->clip_height : text->height / text->item.canvas->pixels_per_unit);
        break;

    case PROP_DRAW_BORDERS:
        g_value_set_boolean (value, text->draw_borders);
        break;

    case PROP_DRAW_BACKGROUND:
        g_value_set_boolean (value, text->draw_background);
        break;
        
    case PROP_DRAW_BUTTON:
        g_value_set_boolean (value, text->draw_button);
        break;
        
    case PROP_ALLOW_NEWLINES:
        g_value_set_boolean (value, text->allow_newlines);
        break;

    case PROP_CURSOR_POS:
        g_value_set_int (value, text->selection_start);
        break;

    case PROP_IM_CONTEXT:
        g_value_set_object (value, text->im_context);
        break;
        
    case PROP_HANDLE_POPUP:
        g_value_set_boolean (value, text->handle_popup);
        break;

    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

/* Update handler for the text item */
static void
e_text_reflow (GnomeCanvasItem *item, int flags)
{
    EText *text;

    text = E_TEXT (item);

    if (text->needs_reset_layout) {
        reset_layout (text);
        text->needs_reset_layout = 0;
        text->needs_calc_height = 1;
    }

    if (text->needs_split_into_lines) {
        split_into_lines (text);

        text->needs_split_into_lines = 0;
        text->needs_calc_height = 1;
    }

    if ( text->needs_calc_height ) {
        calc_height (text);
        gnome_canvas_item_request_update(item);
        text->needs_calc_height = 0;
        text->needs_recalc_bounds = 1;
    }
}

/* Update handler for the text item */
static void
e_text_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
{
    EText *text;
    double x1, y1, x2, y2;

    text = E_TEXT (item);

    if (parent_class->update)
        (* parent_class->update) (item, affine, clip_path, flags);

    if ( text->needs_recalc_bounds
         || (flags & GNOME_CANVAS_UPDATE_AFFINE)) {
        if (!item->canvas->aa) {
            set_text_gc_foreground (text);
            set_stipple (text, text->stipple, TRUE);
            get_bounds (text, &x1, &y1, &x2, &y2);
            if ( item->x1 != x1 ||
                 item->x2 != x2 ||
                 item->y1 != y1 ||
                 item->y2 != y2 ) {
                gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2);
                item->x1 = x1;
                item->y1 = y1;
                item->x2 = x2;
                item->y2 = y2;
                text->needs_redraw = 1;
                item->canvas->need_repick = TRUE;
            }
            if (!text->fill_clip_rectangle)
                item->canvas->need_repick = TRUE;
        }
        text->needs_recalc_bounds = 0;
    }
    if ( text->needs_redraw ) {
        gnome_canvas_request_redraw (item->canvas, item->x1, item->y1, item->x2, item->y2);
        text->needs_redraw = 0;
    }
}

/* Realize handler for the text item */
static void
e_text_realize (GnomeCanvasItem *item)
{
    EText *text;

    text = E_TEXT (item);

    if (parent_class->realize)
        (* parent_class->realize) (item);

    create_layout (text);

    text->gc = gdk_gc_new (item->canvas->layout.bin_window);
#ifndef NO_WARNINGS
#warning Color brokenness ...
#endif
#if 0
    gdk_color_context_query_color (item->canvas->cc, &text->color);
    gdk_gc_set_foreground (text->gc, &text->color);
#endif
    
    text->i_cursor = gdk_cursor_new (GDK_XTERM);
    text->default_cursor = gdk_cursor_new (GDK_LEFT_PTR);
}

/* Unrealize handler for the text item */
static void
e_text_unrealize (GnomeCanvasItem *item)
{
    EText *text;

    text = E_TEXT (item);

    gdk_gc_unref (text->gc);
    text->gc = NULL;

    gdk_cursor_destroy (text->i_cursor);
    text->i_cursor = NULL;
    gdk_cursor_destroy (text->default_cursor);
    text->default_cursor = NULL;

    if (parent_class->unrealize)
        (* parent_class->unrealize) (item);
}

static void
_get_tep(EText *text)
{
    if (!text->tep) {
        text->tep = e_text_event_processor_emacs_like_new();
        text->tep_command_id = 
            g_signal_connect(text->tep,
                     "command",
                     G_CALLBACK(e_text_command),
                     text);
    }
}

static void
draw_pango_rectangle (GdkDrawable *drawable, GdkGC *gc, int x1, int y1, PangoRectangle rect)
{
    int width = rect.width / PANGO_SCALE;
    int height = rect.height / PANGO_SCALE;
    if (width <= 0)
        width = 1;
    if (height <= 0)
        height = 1;
    gdk_draw_rectangle (drawable, gc, TRUE,
                x1 + rect.x / PANGO_SCALE, y1 + rect.y / PANGO_SCALE, width, height);
}

static gboolean
show_pango_rectangle (EText *text, PangoRectangle rect)
{
    int x1 = rect.x / PANGO_SCALE;
    int x2 = (rect.x + rect.width) / PANGO_SCALE;

    int y1 = rect.y / PANGO_SCALE;
    int y2 = (rect.y + rect.height) / PANGO_SCALE;

    int new_xofs_edit = text->xofs_edit;
    int new_yofs_edit = text->yofs_edit;

    int clip_width, clip_height;

    clip_width = text->clip_width;
    if (clip_width >= 0 && text->draw_borders) {
        clip_width -= 6;
        if (clip_width < 0)
            clip_width = 0;
    }

    clip_height = text->clip_height;

    if (clip_height >= 0 && text->draw_borders) {
        clip_height -= 6;
        if (clip_height < 0)
            clip_height = 0;
    }

    if (x1 < new_xofs_edit)
        new_xofs_edit = x1;

    if (y1 < new_yofs_edit)
        new_yofs_edit = y1;

    if (clip_width >= 0) {
        if (2 + x2 - clip_width > new_xofs_edit)
            new_xofs_edit = 2 + x2 - clip_width;
    } else {
        new_xofs_edit = 0;
    }

    if (clip_height >= 0) {
        if (y2 - clip_height > new_yofs_edit)
            new_yofs_edit = y2 - clip_height;
    } else {
        new_yofs_edit = 0;
    }

    if (new_xofs_edit < 0)
        new_xofs_edit = 0;
    if (new_yofs_edit < 0)
        new_yofs_edit = 0;

    if (new_xofs_edit != text->xofs_edit ||
        new_yofs_edit != text->yofs_edit) {
        text->xofs_edit = new_xofs_edit;
        text->yofs_edit = new_yofs_edit;
        return TRUE;
    }

    return FALSE;
}

/* Draw handler for the text item */
static void
e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
         int x, int y, int width, int height)
{
    EText *text;
    GdkRectangle rect, *clip_rect;
    int xpos, ypos;
    GdkGC *main_gc;
    GnomeCanvas *canvas;
    GtkWidget *widget;

    text = E_TEXT (item);
    canvas = GNOME_CANVAS_ITEM(text)->canvas;
    widget = GTK_WIDGET(canvas);

    if (text->draw_background || text->draw_button) {
        main_gc = widget->style->fg_gc[GTK_WIDGET_STATE (widget)];
    } else {
        main_gc = text->gc;
    }

    if (text->draw_borders || text->draw_background) {
        gdouble thisx = item->x1 - x;
        gdouble thisy = item->y1 - y;
        gdouble thiswidth, thisheight;
        GtkWidget *widget = GTK_WIDGET(item->canvas);

        g_object_get(text,
                 "width", &thiswidth,
                 "height", &thisheight,
                 NULL);
        
        if (text->draw_borders){

            gtk_paint_shadow (widget->style, drawable,
                      GTK_STATE_NORMAL, GTK_SHADOW_IN,
                      NULL, widget, "entry",
                      thisx, thisy, thiswidth, thisheight);

        }

        if (text->draw_background) {
            gtk_paint_flat_box (widget->style, drawable,
                        GTK_WIDGET_STATE(widget), GTK_SHADOW_NONE,
                        NULL, widget, "entry_bg", 
                        thisx + widget->style->xthickness,
                        thisy + widget->style->ythickness, 
                        thiswidth - widget->style->xthickness * 2,
                        thisheight - widget->style->ythickness * 2);
        }
    }
    if (text->draw_button) {
        GtkWidget *widget;
        int xoff = item->x1 - x;
        int yoff = item->y1 - y;

        widget = GTK_WIDGET (item->canvas);

        xoff -= widget->allocation.x;
        yoff -= widget->allocation.y;

        widget = widget->parent;

        while (widget && !GTK_IS_BUTTON(widget)) {
            if (!GTK_WIDGET_NO_WINDOW (widget)) {
                widget = NULL;
                break;
            }
            widget = widget->parent;
        }
        if (widget) {
            GtkButton *button = GTK_BUTTON (widget);
            GtkShadowType shadow_type;
            int thisx, thisy, thisheight, thiswidth;
            int default_spacing;
            GdkRectangle area;
            area.x = 0;
            area.y = 0;
            area.width = width;
            area.height = height;

#define DEFAULT_SPACING   7
#if 0
            default_spacing = gtk_style_get_prop_experimental (widget->style,
                                       "GtkButton::default_spacing",
                                       DEFAULT_SPACING);
#endif
            default_spacing = 7;

            thisx = 0;
            thisy = 0;
            thiswidth = widget->allocation.width - GTK_CONTAINER (widget)->border_width * 2;
            thisheight = widget->allocation.height - GTK_CONTAINER (widget)->border_width * 2;

            if (GTK_WIDGET_HAS_DEFAULT (widget) &&
                GTK_BUTTON (widget)->relief == GTK_RELIEF_NORMAL)
                {
                    gtk_paint_box (widget->style, drawable,
                               GTK_STATE_NORMAL, GTK_SHADOW_IN,
                               &area, widget, "buttondefault",
                               thisx + xoff, thisy + yoff, thiswidth, thisheight);
                }

            if (GTK_WIDGET_CAN_DEFAULT (widget)) {
                thisx += widget->style->xthickness;
                thisy += widget->style->ythickness;
                thiswidth -= 2 * thisx + default_spacing;
                thisheight -= 2 * thisy + default_spacing;
                thisx += (1 + default_spacing) / 2;
                thisy += (1 + default_spacing) / 2;
            }

            if (GTK_WIDGET_HAS_FOCUS (widget)) {
                thisx += 1;
                thisy += 1;
                thiswidth -= 2;
                thisheight -= 2;
            }

            if (GTK_WIDGET_STATE (widget) == GTK_STATE_ACTIVE)
                shadow_type = GTK_SHADOW_IN;
            else
                shadow_type = GTK_SHADOW_OUT;

            if ((button->relief != GTK_RELIEF_NONE) ||
                ((GTK_WIDGET_STATE(widget) != GTK_STATE_NORMAL) &&
                 (GTK_WIDGET_STATE(widget) != GTK_STATE_INSENSITIVE)))
            gtk_paint_box (widget->style, drawable,
                       GTK_WIDGET_STATE (widget),
                       shadow_type, &area, widget, "button",
                       thisx + xoff, thisy + yoff, thiswidth, thisheight);

            if (GTK_WIDGET_HAS_FOCUS (widget)) {
                thisx -= 1;
                thisy -= 1;
                thiswidth += 2;
                thisheight += 2;

                gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
                         &area, widget, "button",
                         thisx + xoff, thisy + yoff, thiswidth - 1, thisheight - 1);
            }
        }
    }

    if (!text->text)
        return;

    if (text->stipple)
        gnome_canvas_set_stipple_origin (item->canvas, main_gc);

    xpos = text->text_cx;
    ypos = text->text_cy;

    xpos -= x;
    ypos -= y;

    clip_rect = NULL;
    if (text->clip) {
        rect.x = xpos;
        rect.y = ypos;
        rect.width = text->clip_cwidth;
        rect.height = text->clip_cheight;
        
        gdk_gc_set_clip_rectangle (main_gc, &rect);
        clip_rect = &rect;
    }

    if (text->editing) {
        xpos -= text->xofs_edit;
        ypos -= text->yofs_edit;
    }

    gdk_draw_layout (drawable, main_gc,
             xpos, ypos,
             text->layout);

    if (text->editing) {
        if (text->selection_start != text->selection_end) {
            PangoLayoutIter *iter;
            GdkRegion *clip_region = gdk_region_new ();
            GdkGC *selection_gc;
            GdkGC *text_gc;
            int start_index, end_index;

            start_index = MIN (text->selection_start, text->selection_end);
            end_index = MAX (text->selection_start, text->selection_end);

            /* convert these into byte indices */
            start_index = g_utf8_offset_to_pointer(text->text, start_index) - text->text;
            end_index = g_utf8_offset_to_pointer(text->text, end_index) - text->text;

            if (text->has_selection) {
                selection_gc = widget->style->base_gc [GTK_STATE_SELECTED];
                text_gc = widget->style->text_gc[GTK_STATE_SELECTED];
            } else {
                selection_gc = widget->style->base_gc [GTK_STATE_ACTIVE];
                text_gc = widget->style->text_gc[GTK_STATE_ACTIVE];
            }

            gdk_gc_set_clip_rectangle (selection_gc, clip_rect);

            iter = pango_layout_get_iter (text->layout);

            do {
                PangoLayoutLine *line = pango_layout_iter_get_line (iter);
                gint n_ranges, i;
                gint *ranges;
                int y0, y1;
                int s, e;

                if (start_index < line->start_index + line->length
                    && end_index > line->start_index) {
                    
                    if (start_index <= line->start_index)
                        s = line->start_index;
                    else
                        s = start_index;

                    if (end_index > line->start_index + line->length)
                        e = line->start_index + line->length;
                    else
                        e = end_index;

                    pango_layout_line_get_x_ranges (line, s, e, &ranges, &n_ranges);

                    pango_layout_iter_get_line_yrange (iter, &y0, &y1);

                    for (i=0; i < n_ranges; i++) {
                        GdkRectangle sel_rect;

                        sel_rect.x = xpos + PANGO_PIXELS (ranges[2*i]);
                        sel_rect.y = ypos + PANGO_PIXELS (y0);
                        sel_rect.width = (ranges[2*i + 1] - ranges[2*i]) / PANGO_SCALE;
                        sel_rect.height = (y1 - y0 + PANGO_SCALE / 2) / PANGO_SCALE;

                        gdk_draw_rectangle (drawable, selection_gc, TRUE,
                                    sel_rect.x, sel_rect.y, sel_rect.width, sel_rect.height);

                        gdk_region_union_with_rect (clip_region, &sel_rect);
                    }
                    g_free (ranges);
                }
            } while (pango_layout_iter_next_line (iter));

            pango_layout_iter_free (iter);

            if (clip_rect) {
                GdkRegion *rect_region = gdk_region_rectangle (clip_rect);
                gdk_region_intersect (clip_region, rect_region);
                gdk_region_destroy (rect_region);
            }

            gdk_gc_set_clip_region (text_gc, clip_region);
            gdk_draw_layout (drawable, text_gc, 
                     xpos, ypos,
                     text->layout);

            gdk_gc_set_clip_region (text_gc, NULL);
            gdk_gc_set_clip_region (selection_gc, NULL);

            gdk_region_destroy (clip_region);
        } else {
            if (text->show_cursor) {
                PangoRectangle strong_pos, weak_pos;
                char *offs = g_utf8_offset_to_pointer (text->text, text->selection_start);

                pango_layout_get_cursor_pos (text->layout, offs - text->text, &strong_pos, &weak_pos);
                draw_pango_rectangle (drawable, main_gc, xpos, ypos, strong_pos);
                if (strong_pos.x != weak_pos.x ||
                    strong_pos.y != weak_pos.y ||
                    strong_pos.width != weak_pos.width ||
                    strong_pos.height != weak_pos.height)
                    draw_pango_rectangle (drawable, main_gc, xpos, ypos, weak_pos);
            }
        }
    }


    if (text->clip) {
        gdk_gc_set_clip_rectangle (main_gc, NULL);
    }
}

/* Point handler for the text item */
static double
e_text_point (GnomeCanvasItem *item, double x, double y,
          int cx, int cy, GnomeCanvasItem **actual_item)
{
    EText *text;
    double clip_width;
    double clip_height;

    text = E_TEXT (item);

    *actual_item = item;

    /* The idea is to build bounding rectangles for each of the lines of
     * text (clipped by the clipping rectangle, if it is activated) and see
     * whether the point is inside any of these.  If it is, we are done.
     * Otherwise, calculate the distance to the nearest rectangle.
     */

    if (text->clip_width < 0)
        clip_width = text->width;
    else
        clip_width = text->clip_width;

    if ( text->clip_height < 0 )
        clip_height = text->height;
    else
        clip_height = text->clip_height;

    /* Get canvas pixel coordinates for clip rectangle position */
    clip_width = clip_width * item->canvas->pixels_per_unit;
    clip_height = clip_height * item->canvas->pixels_per_unit;

    if (cx < text->clip_cx ||
        cx > text->clip_cx + clip_width ||
        cy < text->clip_cy ||
        cy > text->clip_cy + clip_height)
        return 1;

    if (text->fill_clip_rectangle)
        return 0;

    cx -= text->cx;

    if (pango_layout_xy_to_index (text->layout, cx, cy, NULL, NULL))
        return 0;

    return 1;
}

/* Bounds handler for the text item */
static void
e_text_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
{
    EText *text;
    double width, height;

    text = E_TEXT (item);

    *x1 = 0;
    *y1 = 0;

    width = text->width;
    height = text->height;

    if (text->clip) {
        if (text->clip_width >= 0)
            width = text->clip_width;
        if ( text->clip_height >= 0 )
            height = text->clip_height;
    }

    width = width / item->canvas->pixels_per_unit;
    height = height / item->canvas->pixels_per_unit;

    switch (text->anchor) {
    case GTK_ANCHOR_NW:
    case GTK_ANCHOR_W:
    case GTK_ANCHOR_SW:
        break;

    case GTK_ANCHOR_N:
    case GTK_ANCHOR_CENTER:
    case GTK_ANCHOR_S:
        *x1 -= width / 2.0;
        break;

    case GTK_ANCHOR_NE:
    case GTK_ANCHOR_E:
    case GTK_ANCHOR_SE:
        *x1 -= width;
        break;
    }

    switch (text->anchor) {
    case GTK_ANCHOR_NW:
    case GTK_ANCHOR_N:
    case GTK_ANCHOR_NE:
        break;

    case GTK_ANCHOR_W:
    case GTK_ANCHOR_CENTER:
    case GTK_ANCHOR_E:
        *y1 -= height / 2.0;
        break;

    case GTK_ANCHOR_SW:
    case GTK_ANCHOR_S:
    case GTK_ANCHOR_SE:
        *y1 -= height;
        break;
    }

    *x2 = *x1 + width;
    *y2 = *y1 + height;
}

static gint
get_position_from_xy (EText *text, gint x, gint y)
{
    int index;
    int trailing;

    if (text->draw_borders) {
        x -= BORDER_INDENT;
        y -= BORDER_INDENT;
    }

    x -= text->xofs;
    y -= text->yofs;

    if (text->editing) {
        x += text->xofs_edit;
        y += text->yofs_edit;
    }

    x -= text->cx;
    y -= text->cy;

    pango_layout_xy_to_index (text->layout, x * PANGO_SCALE, y * PANGO_SCALE, &index, &trailing);

    return g_utf8_pointer_to_offset (text->text, text->text + index + trailing);
}

#define SCROLL_WAIT_TIME 30000

static gboolean
_blink_scroll_timeout (gpointer data)
{
    EText *text = E_TEXT(data);
    gulong current_time;
    gboolean scroll = FALSE;
    gboolean redraw = FALSE;
    
    g_timer_elapsed(text->timer, &current_time);

    if (text->scroll_start + SCROLL_WAIT_TIME > 1000000) {
        if (current_time > text->scroll_start - (1000000 - SCROLL_WAIT_TIME) &&
            current_time < text->scroll_start)
            scroll = TRUE;
    } else {
        if (current_time > text->scroll_start + SCROLL_WAIT_TIME ||
            current_time < text->scroll_start)
            scroll = TRUE;
    }
    if (scroll && text->button_down && text->clip) {
        int old_xofs_edit = text->xofs_edit;
        int old_yofs_edit = text->yofs_edit;

        if (text->clip_cwidth >= 0 &&
            text->lastx - text->clip_cx > text->clip_cwidth &&
            text->xofs_edit < text->width - text->clip_cwidth) {
            text->xofs_edit += 4;
            if (text->xofs_edit > text->width - text->clip_cwidth + 1)
                text->xofs_edit = text->width - text->clip_cwidth + 1;
        }
        if (text->lastx - text->clip_cx < 0 &&
            text->xofs_edit > 0) {
            text->xofs_edit -= 4;
            if (text->xofs_edit < 0)
                text->xofs_edit = 0;
        }

        if (text->clip_cheight >= 0 &&
            text->lasty - text->clip_cy > text->clip_cheight &&
            text->yofs_edit < text->height - text->clip_cheight) {
            text->yofs_edit += 4;
            if (text->yofs_edit > text->height - text->clip_cheight + 1)
                text->yofs_edit = text->height - text->clip_cheight + 1;
        }
        if (text->lasty - text->clip_cy < 0 &&
            text->yofs_edit > 0) {
            text->yofs_edit -= 4;
            if (text->yofs_edit < 0)
                text->yofs_edit = 0;
        }

        if (old_xofs_edit != text->xofs_edit ||
            old_yofs_edit != text->yofs_edit) {
            ETextEventProcessorEvent e_tep_event;
            e_tep_event.type = GDK_MOTION_NOTIFY;
            e_tep_event.motion.state = text->last_state;
            e_tep_event.motion.time = 0;
            e_tep_event.motion.position = get_position_from_xy(text, text->lastx, text->lasty);
            _get_tep(text);
            e_text_event_processor_handle_event (text->tep,
                                 &e_tep_event);
            text->scroll_start = current_time;
            redraw = TRUE;
        }
    }

    if (!((current_time / 500000) % 2)) {
        if (!text->show_cursor)
            redraw = TRUE;
        text->show_cursor = TRUE;
    } else {
        if (text->show_cursor)
            redraw = TRUE;
        text->show_cursor = FALSE;
    }
    if (redraw) {
        text->needs_redraw = 1;
        gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
    }
    return TRUE;
}

static gboolean
tooltip_event(GtkWidget *tooltip, GdkEvent *event, EText *text)
{
    gint ret_val = FALSE;

    if (!text->model)
        return FALSE;

    switch (event->type) {
    case GDK_LEAVE_NOTIFY:
        e_canvas_hide_tooltip (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas));
        break;
    case GDK_BUTTON_PRESS:
    case GDK_BUTTON_RELEASE:
        if (event->type == GDK_BUTTON_RELEASE) {
            e_canvas_hide_tooltip (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas));
        }
        /* Forward events to the text item */
        g_signal_emit_by_name (text, "event", event,
                       &ret_val);
        if (!ret_val)
            gtk_propagate_event (GTK_WIDGET(GNOME_CANVAS_ITEM(text)->canvas), event);
        ret_val = TRUE;
    default:
        break;
    }
    return ret_val;
}

static void
tooltip_destroy(gpointer data, GObject *where_object_was)
{
    EText *text = data;
    text->tooltip_owner = FALSE;
    g_object_unref (text);
}

static gboolean
_do_tooltip (gpointer data)
{
#warning "need to sort out tooltip stuff."
    EText *text = E_TEXT (data);
    struct line *lines;
    GtkWidget *canvas;
    int i;
    int max_width;
    gboolean cut_off;
    double i2c[6];
    ArtPoint origin = {0, 0};
    ArtPoint pixel_origin;
    int canvas_x, canvas_y;
    GnomeCanvasItem *tooltip_text;
    double tooltip_width;
    double tooltip_height;
    double tooltip_x;
    double tooltip_y;
#if 0
    double x1, x2, y1, y2;
#endif
    GnomeCanvasItem *rect;
    GtkWidget *tooltip_window;      /* GtkWindow for displaying the tooltip */

    text->tooltip_count = 0;

    if (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas)->tooltip_window || text->editing || !text->num_lines) {
        text->tooltip_timeout = 0;
        return FALSE;
    }

    cut_off = FALSE;
    for ( i = 0; i < text->num_lines; i++ ) {
        PangoLayoutLine *line = pango_layout_get_line (text->layout, i);
        PangoRectangle rect;

        pango_layout_line_get_pixel_extents (line, &rect, NULL);

        if (rect.width > text->clip_width) {
            cut_off = TRUE;
            break;
        }
    }
    if ( ! cut_off ) {
        text->tooltip_timeout = 0;
        return FALSE;
    }

    gnome_canvas_item_i2c_affine(GNOME_CANVAS_ITEM(text), i2c);
    art_affine_point (&pixel_origin, &origin, i2c);

    gdk_window_get_origin (GTK_WIDGET(GNOME_CANVAS_ITEM(text)->canvas)->window, &canvas_x, &canvas_y);
    pixel_origin.x += canvas_x;
    pixel_origin.y += canvas_y;
    pixel_origin.x -= (int) gtk_layout_get_hadjustment(GTK_LAYOUT(GNOME_CANVAS_ITEM(text)->canvas))->value;
    pixel_origin.y -= (int) gtk_layout_get_vadjustment(GTK_LAYOUT(GNOME_CANVAS_ITEM(text)->canvas))->value;

    tooltip_window = gtk_window_new (GTK_WINDOW_POPUP);
    gtk_container_set_border_width (GTK_CONTAINER (tooltip_window), 1);

    canvas = e_canvas_new ();

    gtk_container_add (GTK_CONTAINER (tooltip_window), canvas);
    
    /* Get the longest line length */
    pango_layout_get_size (text->layout, &max_width, NULL);

    rect = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (canvas)),
                      gnome_canvas_rect_get_type (),
                      "x1", (double) 0,
                      "y1", (double) 0,
                      "x2", (double) max_width + 4,
                      "y2", (double) text->height + 4,
                      "fill_color", "light gray",
                      NULL);

    tooltip_text = gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (canvas)),
                          e_text_get_type (),
                          "anchor", GTK_ANCHOR_NW,
                          "bold", text->bold,
                          "strikeout", text->strikeout,
                          "text", text->text,
                          "editable", FALSE,
                          "clip_width", text->max_lines != 1 ? text->clip_width : max_width,
                          "clip_height", text->max_lines != 1 ? -1 : (double)text->height,
                          "clip", TRUE,
                          "line_wrap", text->line_wrap,
                          "justification", text->justification,
                          NULL);



    if (text->draw_borders)
        e_canvas_item_move_absolute(tooltip_text, 1 + BORDER_INDENT, 1 + BORDER_INDENT);
    else
        e_canvas_item_move_absolute(tooltip_text, 1, 1);

    create_layout (E_TEXT (tooltip_text));

    split_into_lines (E_TEXT(tooltip_text));
    calc_height (E_TEXT(tooltip_text));

    gnome_canvas_item_set (tooltip_text,
                   "clip_height", (double) E_TEXT(tooltip_text)->height,
                   "clip_width", (double) E_TEXT(tooltip_text)->width,
                   NULL);

    tooltip_width = E_TEXT(tooltip_text)->width;
    tooltip_height = E_TEXT(tooltip_text)->height;
    tooltip_x = 0;
    tooltip_y = 0;
    switch(E_TEXT(tooltip_text)->justification) {
    case GTK_JUSTIFY_CENTER:
        tooltip_x = - tooltip_width / 2;
        break;
    case GTK_JUSTIFY_RIGHT:
        tooltip_x = tooltip_width / 2;
        break;
    case GTK_JUSTIFY_FILL:
    case GTK_JUSTIFY_LEFT:
        tooltip_x = 0;
        break;
    }
    switch(text->anchor) {
    case GTK_ANCHOR_NW:
    case GTK_ANCHOR_N:
    case GTK_ANCHOR_NE:
        break;

    case GTK_ANCHOR_W:
    case GTK_ANCHOR_CENTER:
    case GTK_ANCHOR_E:
        tooltip_y -= tooltip_height / 2.0;
        break;

    case GTK_ANCHOR_SW:
    case GTK_ANCHOR_S:
    case GTK_ANCHOR_SE:
        tooltip_y -= tooltip_height;
        break;
    }
    switch(E_TEXT(tooltip_text)->anchor) {
    case GTK_ANCHOR_NW:
    case GTK_ANCHOR_W:
    case GTK_ANCHOR_SW:
        break;

    case GTK_ANCHOR_N:
    case GTK_ANCHOR_CENTER:
    case GTK_ANCHOR_S:
        tooltip_x -= tooltip_width / 2.0;
        break;

    case GTK_ANCHOR_NE:
    case GTK_ANCHOR_E:
    case GTK_ANCHOR_SE:
        tooltip_x -= tooltip_width;
        break;
    }

    gnome_canvas_item_set(rect,
                  "x2", (double) tooltip_width + 4 + (text->draw_borders ? BORDER_INDENT * 2 : 0),
                  "y2", (double) tooltip_height + 4 + (text->draw_borders ? BORDER_INDENT * 2 : 0),
                  NULL);
    
    gtk_widget_show (canvas);
    gtk_widget_realize (tooltip_window);

    gtk_widget_set_usize (tooltip_window,
                  tooltip_width + 4 + (text->draw_borders ? BORDER_INDENT * 2 : 0),
                  tooltip_height + 4 + (text->draw_borders ? BORDER_INDENT * 2 : 0));
    gnome_canvas_set_scroll_region (GNOME_CANVAS(canvas), 0.0, 0.0,
                    tooltip_width + (text->draw_borders ? BORDER_INDENT * 2 : 0), 
                    (double)tooltip_height + (text->draw_borders ? BORDER_INDENT * 2 : 0));
    g_signal_connect (tooltip_window, "event",
              G_CALLBACK(tooltip_event), text);
    g_object_weak_ref (G_OBJECT (tooltip_window),
               tooltip_destroy, text);
    g_object_ref (text);

    e_canvas_popup_tooltip (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas),
                tooltip_window,
                pixel_origin.x - 2 + tooltip_x,
                pixel_origin.y - 2 + tooltip_y);
    text->tooltip_owner = TRUE;
    
    text->tooltip_timeout = 0;

    return FALSE;
}

static void
start_editing (EText *text)
{
    if (text->editing)
        return;

    g_free (text->revert);
    text->revert = g_strdup (text->text);

    text->editing = TRUE;
    if (text->pointer_in) {
        if (text->default_cursor_shown && (!text->draw_borders)) {
            gdk_window_set_cursor (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas)->window, text->i_cursor);
            text->default_cursor_shown = FALSE;
        }
    }
    text->select_by_word = FALSE;
    text->xofs_edit = 0;
    text->yofs_edit = 0;
    if (text->timeout_id == 0)
        text->timeout_id = g_timeout_add(10, _blink_scroll_timeout, text);
    text->timer = g_timer_new();
    g_timer_elapsed(text->timer, &(text->scroll_start));
    g_timer_start(text->timer);
}

void
e_text_stop_editing (EText *text)
{
    if (!text->editing)
        return;

    g_free (text->revert);
    text->revert = NULL;

    text->editing = FALSE;
    if ( (!text->default_cursor_shown) && (!text->draw_borders) ) {
        gdk_window_set_cursor (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas)->window, text->default_cursor);
        text->default_cursor_shown = TRUE;
    }
    if (text->timer) {
        g_timer_stop(text->timer);
        g_timer_destroy(text->timer);
        text->timer = NULL;
    }
}

void
e_text_cancel_editing (EText *text)
{
    if (text->revert)
        e_text_model_set_text(text->model, text->revert);
    e_text_stop_editing (text);
}

static gboolean
_click (gpointer data)
{
    *(gint *)data = 0;
    return FALSE;
}

static gint
e_text_event (GnomeCanvasItem *item, GdkEvent *event)
{
    EText *text = E_TEXT(item);
    ETextEventProcessorEvent e_tep_event;

    gint return_val = 0;

    if (!text->model)
        return FALSE;

    e_tep_event.type = event->type;
    switch (event->type) {
    case GDK_FOCUS_CHANGE:
        if (text->editable) {
            GdkEventFocus *focus_event;
            focus_event = (GdkEventFocus *) event;
            if (focus_event->in) {
                if (text->im_context) {
                    if (!text->im_context_signals_registered) {
                        g_signal_connect (text->im_context, "commit",
                                  G_CALLBACK (e_text_commit_cb), text);
                        g_signal_connect (text->im_context, "retrieve_surrounding",
                                  G_CALLBACK (e_text_retrieve_surrounding_cb), text);
                        g_signal_connect (text->im_context, "delete_surrounding",
                                  G_CALLBACK (e_text_delete_surrounding_cb), text);
                        text->im_context_signals_registered = TRUE;
                    }
                }
                start_editing (text);
                text->show_cursor = FALSE; /* so we'll redraw and the cursor will be shown */
            } else {
                if (text->im_context) {
                    g_signal_handlers_disconnect_matched (text->im_context,
                                          G_SIGNAL_MATCH_DATA,
                                          0, 0, NULL,
                                          NULL, text);
                    text->im_context_signals_registered = FALSE;
                }
                e_text_stop_editing (text);
                if (text->timeout_id) {
                    g_source_remove(text->timeout_id);
                    text->timeout_id = 0;
                }
                if (text->show_cursor || text->draw_borders) {
                    text->show_cursor = FALSE;
                    text->needs_redraw = 1;
                    gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
                }
            }
            if ( text->line_wrap )
                text->needs_split_into_lines = 1;
            e_canvas_item_request_reflow (GNOME_CANVAS_ITEM(text));
        }
        return_val = 0;
        break;
    case GDK_KEY_PRESS: /* Fall Through */
    case GDK_KEY_RELEASE:
        if (text->editing) {
            GdkEventKey key;
            gint ret;

            if (text->im_context && gtk_im_context_filter_keypress (text->im_context, (GdkEventKey*)event)) {
                text->need_im_reset = TRUE;
                return 1;
            }

            key = event->key;
            e_tep_event.key.time = key.time;
            e_tep_event.key.state = key.state;
            e_tep_event.key.keyval = key.keyval;

            /* This is probably ugly hack, but we have to handle UTF-8 input somehow */
#if 0
            e_tep_event.key.length = key.length;
            e_tep_event.key.string = key.string;
#else
            e_tep_event.key.string = e_utf8_from_gtk_event_key (GTK_WIDGET (item->canvas), key.keyval, key.string);
            if (e_tep_event.key.string != NULL) {
                e_tep_event.key.length = strlen (e_tep_event.key.string);
            } else {
                e_tep_event.key.length = 0;
            }
#endif
            _get_tep(text);
            ret = e_text_event_processor_handle_event (text->tep, &e_tep_event);

            if (event->type == GDK_KEY_PRESS)
                g_signal_emit (text, e_text_signals[E_TEXT_KEYPRESS], 0,
                           e_tep_event.key.keyval, e_tep_event.key.state);
            

            if (e_tep_event.key.string)
                g_free (e_tep_event.key.string);


            return ret;
        }
        break;
    case GDK_BUTTON_PRESS: /* Fall Through */
    case GDK_BUTTON_RELEASE:
        if (text->tooltip_timeout) {
            gtk_timeout_remove (text->tooltip_timeout);
            text->tooltip_timeout = 0;
        }
        e_canvas_hide_tooltip (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas));
#if 0
        if ((!text->editing) 
            && text->editable 
            && event->type == GDK_BUTTON_RELEASE
            && event->button.button == 1) {
            GdkEventButton button = event->button;

            e_canvas_item_grab_focus (item, TRUE);

            e_tep_event.type = GDK_BUTTON_RELEASE;
            e_tep_event.button.time = button.time;
            e_tep_event.button.state = button.state;
            e_tep_event.button.button = button.button;
            e_tep_event.button.position = get_position_from_xy(text, button.x, button.y);
            _get_tep(text);
            return_val = e_text_event_processor_handle_event (text->tep,
                                      &e_tep_event);
            e_tep_event.type = GDK_BUTTON_RELEASE;
        }
#else
        if ((!text->editing) 
            && text->editable 
            && (event->button.button == 1 ||
            event->button.button == 2)) {
            e_canvas_item_grab_focus (item, TRUE);
            start_editing (text);
        }
#endif

        /* We follow convention and emit popup events on right-clicks. */
        if (event->type == GDK_BUTTON_PRESS && event->button.button == 3) {
            if (text->handle_popup) {
                e_text_do_popup (text, &(event->button),
                         get_position_from_xy (text, event->button.x, event->button.y));
                return TRUE;
            }
            else {
                break;
            }
        }

        /* Create our own double and triple click events, 
           as gnome-canvas doesn't forward them to us */
        if (event->type == GDK_BUTTON_PRESS) {
            if (text->dbl_timeout == 0 && 
                text->tpl_timeout == 0) {
                text->dbl_timeout = gtk_timeout_add (200,
                                     _click,
                                     &(text->dbl_timeout));
            } else {
                if (text->tpl_timeout == 0) {
                    e_tep_event.type = GDK_2BUTTON_PRESS;
                    text->tpl_timeout = gtk_timeout_add (200, _click, &(text->tpl_timeout));
                } else {
                    e_tep_event.type = GDK_3BUTTON_PRESS;
                }                    
            }
        }
        
        if (text->editing) {
            GdkEventButton button = event->button;
            e_tep_event.button.time = button.time;
            e_tep_event.button.state = button.state;
            e_tep_event.button.button = button.button;
            e_tep_event.button.position = get_position_from_xy(text, button.x, button.y);
            _get_tep(text);
            return_val = e_text_event_processor_handle_event (text->tep,
                                      &e_tep_event);
            if (event->button.button == 1) {
                if (event->type == GDK_BUTTON_PRESS)
                    text->button_down = TRUE;
                else
                    text->button_down = FALSE;
            }
            text->lastx = button.x;
            text->lasty = button.y;
            text->last_state = button.state;
        }
        break;
    case GDK_MOTION_NOTIFY:
        if (text->editing) {
            GdkEventMotion motion = event->motion;
            e_tep_event.motion.time = motion.time;
            e_tep_event.motion.state = motion.state;
            e_tep_event.motion.position = get_position_from_xy(text, motion.x, motion.y);
            _get_tep(text);
            return_val = e_text_event_processor_handle_event (text->tep,
                                       &e_tep_event);
            text->lastx = motion.x;
            text->lasty = motion.y;
            text->last_state = motion.state;
        }
        break;
    case GDK_ENTER_NOTIFY:
        {
                if ( text->tooltip_count == 0 && text->clip) {
                    if (!text->tooltip_timeout)
                        text->tooltip_timeout = gtk_timeout_add (1000, _do_tooltip, text);
                }
                text->tooltip_count ++;
        }

        text->pointer_in = TRUE;
        if (text->editing || text->draw_borders) {
            if ( text->default_cursor_shown ) {
                gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, text->i_cursor);
                text->default_cursor_shown = FALSE;
            }
        }
        break;
    case GDK_LEAVE_NOTIFY:
        if (text->tooltip_count > 0)
            text->tooltip_count --;
        if ( text->tooltip_count == 0 && text->clip) {
            if ( text->tooltip_timeout ) {
                gtk_timeout_remove (text->tooltip_timeout);
                text->tooltip_timeout = 0;
            }
        }
        
        text->pointer_in = FALSE;
        if (text->editing || text->draw_borders) {
            if ( ! text->default_cursor_shown ) {
                gdk_window_set_cursor(GTK_WIDGET(item->canvas)->window, text->default_cursor);
                text->default_cursor_shown = TRUE;
            }
        }
        break;
    default:
        break;
    }
    if (return_val)
        return return_val;
    if (GNOME_CANVAS_ITEM_CLASS(parent_class)->event)
        return GNOME_CANVAS_ITEM_CLASS(parent_class)->event(item, event);
    else
        return 0;
}

void
e_text_copy_clipboard (EText *text)
{
    gint selection_start_pos; 
    gint selection_end_pos;
    char *str;

    selection_start_pos = MIN (text->selection_start, text->selection_end);
    selection_end_pos = MAX (text->selection_start, text->selection_end);

    /* convert sel_start/sel_end to byte indices */
    selection_start_pos = g_utf8_offset_to_pointer (text->text, selection_start_pos) - text->text;
    selection_end_pos = g_utf8_offset_to_pointer (text->text, selection_end_pos) - text->text;

    str = g_strndup (text->text + selection_start_pos,
             selection_end_pos - selection_start_pos);

    gtk_clipboard_set_text (
#ifdef GTK_2_2
                gtk_widget_get_clipboard (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas),
                              GDK_SELECTION_CLIPBOARD),
#else
                gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
#endif
                str, -1);
    g_free (str);
}

void
e_text_delete_selection(EText *text)
{
    int sel_start, sel_end;

    sel_start = MIN(text->selection_start, text->selection_end);
    sel_end   = MAX(text->selection_start, text->selection_end);

    if (sel_start != sel_end)
        e_text_model_delete(text->model, sel_start, sel_end - sel_start);
}

void
e_text_cut_clipboard (EText *text)
{
    e_text_copy_clipboard (text);
    e_text_delete_selection (text);
}

void
e_text_paste_clipboard (EText *text)
{
    ETextEventProcessorCommand command;

    command.action = E_TEP_PASTE;
    command.position = E_TEP_SELECTION;
    command.string = "";
    command.value = 0;
    e_text_command(text->tep, &command, text);
}

void
e_text_select_all (EText *text)
{
    ETextEventProcessorCommand command;

    command.action = E_TEP_SELECT;
    command.position = E_TEP_SELECT_ALL;
    command.string = "";
    command.value = 0;
    e_text_command(text->tep, &command, text);
}


static void
primary_get_cb (GtkClipboard     *clipboard,
        GtkSelectionData *selection_data,
        guint             info,
        gpointer          data)
{
    EText *text = E_TEXT (data);
    int sel_start, sel_end;

    sel_start = MIN(text->selection_start, text->selection_end);
    sel_end   = MAX(text->selection_start, text->selection_end);

    /* convert sel_start/sel_end to byte indices */
    sel_start = g_utf8_offset_to_pointer (text->text, sel_start) - text->text;
    sel_end = g_utf8_offset_to_pointer (text->text, sel_end) - text->text;

    if (sel_start != sel_end) {
        gchar *str = g_strndup (text->text + sel_start,
                    sel_end - sel_start);
        gtk_selection_data_set_text (selection_data, str, -1);
        g_free (str);
    }
}

static void
primary_clear_cb (GtkClipboard *clipboard,
          gpointer      data)
{
    EText *text = E_TEXT (data);

#if notyet
    /* XXX */
    gtk_editable_select_region (GTK_EDITABLE (entry), entry->current_pos, entry->current_pos);
#endif
}

static void
e_text_update_primary_selection (EText *text)
{
    static const GtkTargetEntry targets[] = {
        { "UTF8_STRING", 0, 0 },
        { "UTF-8", 0, 0 },
        { "STRING", 0, 0 },
        { "TEXT",   0, 0 }, 
        { "COMPOUND_TEXT", 0, 0 }
    };
    GtkClipboard *clipboard;

#ifdef GTK_2_2
    clipboard = gtk_widget_get_clipboard (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), GDK_SELECTION_PRIMARY);
#else
    clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
#endif
  
    if (text->selection_start != text->selection_end) {
        if (!gtk_clipboard_set_with_owner (clipboard, targets, G_N_ELEMENTS (targets),
                           primary_get_cb, primary_clear_cb, G_OBJECT (text)))
            primary_clear_cb (clipboard, text);
    }
    else {
        if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (text))
            gtk_clipboard_clear (clipboard);
    }
}

static void
paste_received (GtkClipboard *clipboard,
        const gchar  *text,
        gpointer      data)
{
    EText *etext = E_TEXT (data);
      
    if (text && g_utf8_validate (text, strlen (text), NULL)) {
        if (etext->selection_end != etext->selection_start)
            e_text_delete_selection (etext);

        e_text_insert (etext, text);
    }

    g_object_unref (etext);
}

static void
e_text_paste (EText *text, GdkAtom selection)
{
    g_object_ref (text);
    gtk_clipboard_request_text (
#ifdef GTK_2_2

                    gtk_widget_get_clipboard (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas),
                                  selection),
#else
                    gtk_clipboard_get (selection),
#endif
                    paste_received, text);
}

typedef struct {
    EText *text;
    GdkEventButton *button;
    int position;
} PopupClosure;

static void
popup_menu_detach (GtkWidget *attach_widget,
           GtkMenu   *menu)
{
}

static void
popup_targets_received (GtkClipboard     *clipboard,
            GtkSelectionData *data,
            gpointer          user_data)
{
    PopupClosure *closure = user_data;
    EText *text = closure->text;
    GdkEventButton *button = closure->button;
    int position = closure->position;
    GtkWidget *popup_menu = gtk_menu_new ();
    GtkWidget *menuitem, *submenu;

    g_free (closure);

    gtk_menu_attach_to_widget (GTK_MENU (popup_menu),
                   GTK_WIDGET(GNOME_CANVAS_ITEM (text)->canvas),
                   popup_menu_detach);

    /* cut menu item */
    menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_CUT, NULL);
    gtk_widget_show (menuitem);
    gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem);
    g_signal_connect_swapped (menuitem, "activate",
                  G_CALLBACK (e_text_cut_clipboard), text);
    gtk_widget_set_sensitive (menuitem, text->editable && (text->selection_start != text->selection_end));

    /* copy menu item */
    menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_COPY, NULL);
    gtk_widget_show (menuitem);
    gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem);
    g_signal_connect_swapped (menuitem, "activate",
                  G_CALLBACK (e_text_copy_clipboard), text);
    gtk_widget_set_sensitive (menuitem, text->selection_start != text->selection_end);

    /* paste menu item */
    menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_PASTE, NULL);
    gtk_widget_show (menuitem);
    gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem);
    g_signal_connect_swapped (menuitem, "activate",
                  G_CALLBACK (e_text_paste_clipboard), text);
    gtk_widget_set_sensitive (menuitem, text->editable && gtk_selection_data_targets_include_text (data));

    menuitem = gtk_menu_item_new_with_label (_("Select All"));
    gtk_widget_show (menuitem);
    gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem);
    g_signal_connect_swapped (menuitem, "activate",
                  G_CALLBACK (e_text_select_all), text);
    gtk_widget_set_sensitive (menuitem, strlen (text->text) > 0);

    menuitem = gtk_separator_menu_item_new ();
    gtk_widget_show (menuitem);
    gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem);

    if (text->im_context && GTK_IS_IM_MULTICONTEXT (text->im_context)) {
        menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
        gtk_widget_show (menuitem);
        submenu = gtk_menu_new ();
        gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
      
        gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem);

        gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text->im_context),
                              GTK_MENU_SHELL (submenu));
    }

      g_signal_emit (text,
             e_text_signals[E_TEXT_POPULATE_POPUP],
             0,
             button, position,
             popup_menu);

      gtk_menu_popup (GTK_MENU (popup_menu), NULL, NULL,
              NULL, NULL,
              button->button, GDK_CURRENT_TIME);

      g_object_unref (text);
}

static void
e_text_do_popup (EText *text, GdkEventButton *button, int position)
{
    PopupClosure *closure = g_new (PopupClosure, 1);

    closure->text = text;
    g_object_ref (closure->text);
    closure->button = button;
    closure->position = position;

    gtk_clipboard_request_contents (
#ifdef GTK_2_2

                    gtk_widget_get_clipboard (GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas),
                                  GDK_SELECTION_CLIPBOARD),
#else
                    gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
#endif
                    gdk_atom_intern ("TARGETS", FALSE),
                    popup_targets_received,
                    closure);
}

static void
e_text_reset_im_context (EText *text)
{
    if (text->need_im_reset) {
        text->need_im_reset = 0;
        gtk_im_context_reset (text->im_context);
    }
}

/* fixme: */

static int
next_word (EText *text, int start)
{
    char *p = g_utf8_offset_to_pointer (text->text, start);
    int length;

    length = g_utf8_strlen (text->text, -1);

    if (start >= length) {
        return length;
    } else {
        p = g_utf8_next_char (p);
        start++;

        while (p && *p) {
            gunichar unival = g_utf8_get_char (p);
            if (g_unichar_isspace (unival)) {
                return start + 1;
            }
            else {
                p = g_utf8_next_char (p);
                start++;
            }
        }
    }
            
    return g_utf8_pointer_to_offset (text->text, p);
}

static int
find_offset_into_line (EText *text, int offset_into_text, char **start_of_line)
{
    char *p;

    p = g_utf8_offset_to_pointer (text->text, offset_into_text);

    if (p == text->text) {
        if (start_of_line)
            *start_of_line = (char*)text->text;
        return 0;
    }
    else {
        p = g_utf8_find_prev_char (text->text, p);
        
        while (p && p > text->text) {
            if (*p == '\n') {
                if (start_of_line)
                    *start_of_line = p+1;
                return offset_into_text - g_utf8_pointer_to_offset (text->text, p + 1);
            }
            p = g_utf8_find_prev_char (text->text, p);
        }

        if (start_of_line)
            *start_of_line = (char*)text->text;
        return offset_into_text;
    }
}

static int
_get_position(EText *text, ETextEventProcessorCommand *command)
{
    int length, obj_num;
    gunichar unival;
    char *p = NULL;
    gint new_pos = 0;
    int index, trailing;

    switch (command->position) {
        
    case E_TEP_VALUE:
        new_pos = command->value;
        break;

    case E_TEP_SELECTION:
        new_pos = text->selection_end;
        break;

    case E_TEP_START_OF_BUFFER:
        new_pos = 0;
        break;

    case E_TEP_END_OF_BUFFER:
        new_pos = strlen (text->text);
        break;

    case E_TEP_START_OF_LINE:

        if (text->selection_end >= 1) {
            
            p = g_utf8_offset_to_pointer (text->text, text->selection_end);
            if (p != text->text) {
                p = g_utf8_find_prev_char (text->text, p);
                while (p && p > text->text) {
                    if (*p == '\n') {
                        new_pos = g_utf8_pointer_to_offset (text->text, p) + 1;
                        break;
                    }
                    p = g_utf8_find_prev_char (text->text, p);
                }
            }
        }

        break;

    case E_TEP_END_OF_LINE:
        new_pos = -1;
        length = g_utf8_strlen (text->text, -1);
        
        if (text->selection_end >= length) {
            new_pos = length;
        } else {

            p = g_utf8_offset_to_pointer (text->text, text->selection_end);

            while (p && *p) {
                if (*p == '\n') {
                    new_pos = g_utf8_pointer_to_offset (text->text, p);
                    p = NULL;
                } else 
                    p = g_utf8_next_char (p);
            }
        }

        if (new_pos == -1)
            new_pos = g_utf8_pointer_to_offset (text->text, p);

        break;

    case E_TEP_FORWARD_CHARACTER:
        length = g_utf8_strlen (text->text, -1);

        if (text->selection_end >= length)
            new_pos = length;
        else
            new_pos = text->selection_end + 1;

        break;

    case E_TEP_BACKWARD_CHARACTER:
        new_pos = 0;
        if (text->selection_end >= 1) {
            new_pos = text->selection_end - 1;
        }

        break;

    case E_TEP_FORWARD_WORD:
        new_pos = next_word (text, text->selection_end);
        break;

    case E_TEP_BACKWARD_WORD:
        new_pos = 0;
        if (text->selection_end >= 1) {
            int pos = text->selection_end;

            p = g_utf8_find_prev_char (text->text, g_utf8_offset_to_pointer (text->text, text->selection_end));
            pos --;

            if (p != text->text) {
                p = g_utf8_find_prev_char (text->text, p);
                pos --;

                while (p && p > text->text) {
                    unival = g_utf8_get_char (p);
                    if (g_unichar_isspace (unival)) {
                        new_pos = pos + 1;
                        p = NULL;
                    }
                    else {
                        p = g_utf8_find_prev_char (text->text, p);
                        pos --;
                    }
                }
            }
        }
                    
        break;

    case E_TEP_FORWARD_LINE: {
        int l;
        PangoLayoutLine *line, *next_line;
        int offset_into_line;
        int next_line_length;
        char *p;

        offset_into_line = find_offset_into_line (text, text->selection_end, NULL);
        if (offset_into_line == -1)
            return text->selection_end;

        /* now we search forward til we hit a \n, and then
           offset_into_line more characters */
        p = g_utf8_offset_to_pointer (text->text, text->selection_end);
        while (p && *p) {
            if (*p == '\n')
                break;
            p = g_utf8_next_char (p);
        }
        if (p && *p == '\n') {
            /* now we loop forward offset_into_line
               characters, or until we hit \n or \0 */

            p = g_utf8_next_char (p);
            while (offset_into_line > 0 && p && *p != '\n' && *p != '\0') {
                p = g_utf8_next_char (p);
                offset_into_line --;
            }
        }

        /* at this point, p points to the new location,
           convert it to an offset and we're done */
        new_pos = g_utf8_pointer_to_offset (text->text, p);
        break;
    }
    case E_TEP_BACKWARD_LINE: {
        char *p, *prev = NULL;
        int offset_into_line = find_offset_into_line (text, text->selection_end, &p);

        if (offset_into_line == -1)
            return text->selection_end;

        /* p points to the first character on our line.  if we
           have a \n before it, skip it and scan til we hit
           the next one */
        if (p != text->text) {
            p = g_utf8_find_prev_char (text->text, p);
            if (*p == '\n') {
                p = g_utf8_find_prev_char (text->text, p);
                while (p > text->text) {
                    if (*p == '\n') {
                        p ++;
                        break;
                    }
                    p = g_utf8_find_prev_char (text->text, p);
                }
            }
        }

        /* at this point 'p' points to the start of the
           previous line, move forward 'offset_into_line'
           times. */

        while (offset_into_line > 0 && p && *p != '\n' && *p != '\0') {
            p = g_utf8_next_char (p);
            offset_into_line --;
        }

        /* at this point, p points to the new location,
           convert it to an offset and we're done */
        new_pos = g_utf8_pointer_to_offset (text->text, p);
        break;
    }
    case E_TEP_SELECT_WORD:
        /* This is a silly hack to cause double-clicking on an object
           to activate that object.
           (Normally, double click == select word, which is why this is here.) */
        
        obj_num = e_text_model_get_object_at_offset (text->model, text->selection_start);
        if (obj_num != -1) {
            e_text_model_activate_nth_object (text->model, obj_num);
            new_pos = text->selection_start;
            break;
        }

        if (text->selection_end < 1) {
            new_pos = 0;
            break;
        }

        p = g_utf8_offset_to_pointer (text->text, text->selection_end);

        p = g_utf8_find_prev_char (text->text, p);

        while (p && p > text->text) {
            unival = g_utf8_get_char (p);
            if (g_unichar_isspace (unival)) {
                p = g_utf8_next_char (p);
                break;
            }
            p = g_utf8_find_prev_char (text->text, p);
        }

        if (!p)
            text->selection_start = 0;
        else
            text->selection_start = g_utf8_pointer_to_offset (text->text, p);


        text->selection_start = e_text_model_validate_position (text->model, text->selection_start);
        
        length = g_utf8_strlen (text->text, -1);
        if (text->selection_end >= length) {
            new_pos = length;
            break;
        }

        p = g_utf8_offset_to_pointer (text->text, text->selection_end);
        while (p && *p) {
            unival = g_utf8_get_char (p);
            if (g_unichar_isspace (unival)) {
                new_pos =  g_utf8_pointer_to_offset (text->text, p);
                break;
            } else
                p = g_utf8_next_char (p);
        }

        if (!new_pos)
            new_pos = g_utf8_strlen (text->text, -1);

        return new_pos;

    case E_TEP_SELECT_ALL:
        text->selection_start = 0;
        new_pos = g_utf8_strlen (text->text, -1);
        break;

    case E_TEP_FORWARD_PARAGRAPH:
    case E_TEP_BACKWARD_PARAGRAPH:
        
    case E_TEP_FORWARD_PAGE:
    case E_TEP_BACKWARD_PAGE:
        new_pos = text->selection_end;
        break;

    default:
        new_pos = text->selection_end;
        break;
    }

    new_pos = e_text_model_validate_position (text->model, new_pos);

    return new_pos;
}

static void
e_text_insert(EText *text, const char *string)
{
    int len = strlen (string);

    if (len > 0) {
        int utf8len = 0;

        if (!text->allow_newlines) {
            const char *i;
            char *new_string = g_malloc (len + 1);
            char *j = new_string;

            for (i = string; *i; i = g_utf8_next_char(i)) {
                if (*i != '\n') {
                    gunichar c;
                    int charlen;

                    c = g_utf8_get_char (i);
                    charlen = g_unichar_to_utf8 (c, j);
                    j += charlen;
                    utf8len++;
                }
            }
            *j = 0;
            e_text_model_insert_length(text->model, text->selection_start, new_string, utf8len);
            g_free (new_string);
        }
        else {
            utf8len = g_utf8_strlen (string, -1);
            e_text_model_insert_length(text->model, text->selection_start, string, utf8len);
        }
    }
}

static void
capitalize (EText *text, int start, int end, ETextEventProcessorCaps type)
{
    gboolean first = TRUE;
    const char *p = g_utf8_offset_to_pointer (text->text, start);
    const char *text_end = g_utf8_offset_to_pointer (text->text, end);
    int utf8len = text_end - p;
    char *new_text = g_new0 (char, utf8len * 6);
    char *output = new_text;

    while (p && *p && p < text_end) {
        gunichar unival = g_utf8_get_char (p);
        gunichar newval = unival;

        switch (type) {
        case E_TEP_CAPS_UPPER:
            newval = g_unichar_toupper (unival);
            break;
        case E_TEP_CAPS_LOWER:
            newval = g_unichar_tolower (unival);
            break;
        case E_TEP_CAPS_TITLE:
            if (g_unichar_isalpha (unival)) {
                if (first)
                    newval = g_unichar_totitle (unival);
                else
                    newval = g_unichar_tolower (unival);
                first = FALSE;
            } else {
                first = TRUE;
            }
            break;
        }
        g_unichar_to_utf8 (newval, output);
        output = g_utf8_next_char (output);

        p = g_utf8_next_char (p);
    }
    *output = 0;

    e_text_model_delete (text->model, start, utf8len);
    e_text_model_insert_length (text->model, start, new_text, utf8len);
    g_free (new_text);
}

static void
e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data)
{
    EText *text = E_TEXT(data);
    int sel_start, sel_end;
    gboolean scroll = TRUE;
    gboolean use_start = TRUE;

    switch (command->action) {
    case E_TEP_MOVE:
        text->selection_start = _get_position(text, command);
        text->selection_end = text->selection_start;
        if (text->timer) {
            g_timer_reset(text->timer);
        }

        use_start = TRUE;
        break;
    case E_TEP_SELECT:
        text->selection_start = e_text_model_validate_position (text->model, text->selection_start); /* paranoia */
        text->selection_end = _get_position(text, command);
        
        e_text_update_primary_selection (text);

        use_start = FALSE;

        break;
    case E_TEP_DELETE:
        if (text->selection_end == text->selection_start) {
            text->selection_end = _get_position(text, command);
        }
        e_text_delete_selection(text);
        if (text->timer) {
            g_timer_reset(text->timer);
        }

        use_start = FALSE;

        break;

    case E_TEP_INSERT:
        if (g_utf8_validate (command->string, command->value, NULL)) {
            if (text->selection_end != text->selection_start) {
                e_text_delete_selection(text);
            }
            e_text_insert(text, command->string);
            if (text->timer) {
                g_timer_reset(text->timer);
            }
        }
        break;
    case E_TEP_COPY:
        e_text_copy_clipboard (text);

        if (text->timer) {
            g_timer_reset(text->timer);
        }
        scroll = FALSE;
        break;
    case E_TEP_PASTE:
        e_text_paste (text, GDK_NONE);
        if (text->timer) {
            g_timer_reset(text->timer);
        }
        break;
    case E_TEP_GET_SELECTION:
        e_text_paste (text, GDK_SELECTION_PRIMARY);
        break;
    case E_TEP_ACTIVATE:
        g_signal_emit (text, e_text_signals[E_TEXT_ACTIVATE], 0);
        if (text->timer) {
            g_timer_reset(text->timer);
        }
        break;
    case E_TEP_SET_SELECT_BY_WORD:
        text->select_by_word = command->value;
        break;
    case E_TEP_GRAB:
        e_canvas_item_grab (E_CANVAS (GNOME_CANVAS_ITEM(text)->canvas),
                    GNOME_CANVAS_ITEM(text), 
                    GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK,
                    text->i_cursor,
                    command->time,
                    NULL,
                    NULL);
        scroll = FALSE;
        break;
    case E_TEP_UNGRAB:
        e_canvas_item_ungrab (E_CANVAS (GNOME_CANVAS_ITEM(text)->canvas),
                      GNOME_CANVAS_ITEM(text),
                      command->time);
        scroll = FALSE;
        break;
    case E_TEP_CAPS:
        if (text->selection_start == text->selection_end) {
            capitalize (text, text->selection_start, next_word (text, text->selection_start), command->value);
        } else {
            int selection_start = MIN (text->selection_start, text->selection_end);
            int selection_end = MAX (text->selection_start, text->selection_end);
            capitalize (text, selection_start, selection_end, command->value);
        }
        break;
    case E_TEP_NOP:
        scroll = FALSE;
        break;
    }

    if (scroll && !text->button_down) {
        /* XXX do we really need the @trailing logic here?  if
           we don't we can scrap the loop and just use
           pango_layout_index_to_pos */
        int i;
        PangoLayoutLine *cur_line = NULL;
        int selection_index;
        PangoLayoutIter *iter = pango_layout_get_iter (text->layout);

        selection_index = use_start ? text->selection_start : text->selection_end;
        /* convert to a byte index */
        selection_index = g_utf8_offset_to_pointer (text->text, selection_index) - text->text;

        do {
            PangoLayoutLine *line = pango_layout_iter_get_line (iter);

            if (selection_index >= line->start_index && selection_index <= line->start_index + line->length) {
                /* found the line with the start of the selection */
                cur_line = line;
                break;
            }

        } while (pango_layout_iter_next_line (iter));

        if (cur_line) {
            int xpos, ypos;
            double clip_width, clip_height;
            gboolean trailing = FALSE;
            PangoRectangle pango_pos;

            if (selection_index > 0 && selection_index == cur_line->start_index + cur_line->length) {
                selection_index--;
                trailing = TRUE;
            }

            pango_layout_index_to_pos (text->layout, selection_index, &pango_pos);

            pango_pos.x = PANGO_PIXELS (pango_pos.x);
            pango_pos.y = PANGO_PIXELS (pango_pos.y);
            pango_pos.width = (pango_pos.width + PANGO_SCALE / 2) / PANGO_SCALE;
            pango_pos.height = (pango_pos.height + PANGO_SCALE / 2) / PANGO_SCALE;

            /* scroll for X */
            xpos = pango_pos.x; /* + (trailing ? 0 : pango_pos.width);*/

            if (xpos + 2 < text->xofs_edit) {
                text->xofs_edit = xpos;
            }
                                                                                                
            clip_width = text->clip_width;
            if (clip_width >= 0 && text->draw_borders) {
                clip_width -= 6;
                if (clip_width < 0)
                    clip_width = 0;
            }
                                                                                                
            if (xpos + pango_pos.width - clip_width > text->xofs_edit) {
                text->xofs_edit = xpos + pango_pos.width - clip_width;
            }

            /* scroll for Y */
            if (pango_pos.y + 2 < text->yofs_edit) {
                ypos = pango_pos.y;
                text->yofs_edit = ypos;
            }
            else {
                ypos = pango_pos.y + pango_pos.height;
            }

            if ( text->clip_height < 0 )
                clip_height = text->height;
            else
                clip_height = text->clip_height;
                                                                                                
            if (clip_height >= 0 && text->draw_borders) {
                clip_height -= 6;
                if (clip_height < 0)
                    clip_height = 0;
            }
                                                                                                
            if (ypos - clip_height > text->yofs_edit) {
                text->yofs_edit = ypos - clip_height;
            }

        }

        pango_layout_iter_free (iter);
    }

    text->needs_redraw = 1;
    gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
}


/* Class initialization function for the text item */
static void
e_text_class_init (ETextClass *klass)
{
    GObjectClass *gobject_class;
    GnomeCanvasItemClass *item_class;

    gobject_class = (GObjectClass *) klass;
    item_class = (GnomeCanvasItemClass *) klass;

    parent_class = g_type_class_ref (PARENT_TYPE);

    gobject_class->dispose = e_text_dispose;
    gobject_class->set_property = e_text_set_property;
    gobject_class->get_property = e_text_get_property;

    item_class->update = e_text_update;
    item_class->realize = e_text_realize;
    item_class->unrealize = e_text_unrealize;
    item_class->draw = e_text_draw;
    item_class->point = e_text_point;
    item_class->bounds = e_text_bounds;
    item_class->event = e_text_event;

    klass->changed = NULL;
    klass->activate = NULL;

    e_text_signals[E_TEXT_CHANGED] =
        g_signal_new ("changed",
                  G_OBJECT_CLASS_TYPE (gobject_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ETextClass, changed),
                  NULL, NULL,
                  e_marshal_NONE__NONE,
                  G_TYPE_NONE, 0);

    e_text_signals[E_TEXT_ACTIVATE] =
        g_signal_new ("activate",
                  G_OBJECT_CLASS_TYPE (gobject_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ETextClass, activate),
                  NULL, NULL,
                  e_marshal_NONE__NONE,
                  G_TYPE_NONE, 0);

    e_text_signals[E_TEXT_KEYPRESS] =
        g_signal_new ("keypress",
                  G_OBJECT_CLASS_TYPE (gobject_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ETextClass, keypress),
                  NULL, NULL,
                  e_marshal_NONE__INT_INT,
                  G_TYPE_NONE, 2, G_TYPE_UINT, G_TYPE_UINT);

    e_text_signals[E_TEXT_POPULATE_POPUP] =
        g_signal_new ("populate_popup",
                  G_OBJECT_CLASS_TYPE (gobject_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ETextClass, populate_popup),
                  NULL, NULL,
                  e_marshal_NONE__POINTER_INT_OBJECT,
                  G_TYPE_NONE, 3, G_TYPE_POINTER, G_TYPE_INT, GTK_TYPE_MENU);

    g_object_class_install_property (gobject_class, PROP_MODEL,
                     g_param_spec_object ("model",
                                  _( "Model" ),
                                  _( "Model" ),
                                  E_TYPE_TEXT_MODEL,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_EVENT_PROCESSOR,
                     g_param_spec_object ("event_processor",
                                  _( "Event Processor" ),
                                  _( "Event Processor" ),
                                  E_TEXT_EVENT_PROCESSOR_TYPE,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_TEXT,
                     g_param_spec_string ("text",
                                  _( "Text" ),
                                  _( "Text" ),
                                  NULL,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_BOLD,
                     g_param_spec_boolean ("bold",
                                   _( "Bold" ),
                                   _( "Bold" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_STRIKEOUT,
                     g_param_spec_boolean ("strikeout",
                                   _( "Strikeout" ),
                                   _( "Strikeout" ),
                                   FALSE,
                                   G_PARAM_READWRITE));
               
    g_object_class_install_property (gobject_class, PROP_ANCHOR,
                     g_param_spec_enum ("anchor",
                                _( "Anchor" ),
                                _( "Anchor" ),
                                GTK_TYPE_ANCHOR_TYPE, GTK_ANCHOR_CENTER,
                                G_PARAM_READWRITE));


    g_object_class_install_property (gobject_class, PROP_JUSTIFICATION,
                     g_param_spec_enum ("justification",
                                _( "Justification" ),
                                _( "Justification" ),
                                GTK_TYPE_JUSTIFICATION, GTK_JUSTIFY_LEFT,
                                G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_CLIP_WIDTH,
                     g_param_spec_double ("clip_width",
                                  _( "Clip Width" ),
                                  _( "Clip Width" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_CLIP_HEIGHT,
                     g_param_spec_double ("clip_height",
                                  _( "Clip Height" ),
                                  _( "Clip Height" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_CLIP,
                     g_param_spec_boolean ("clip",
                                   _( "Clip" ),
                                   _( "Clip" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_FILL_CLIP_RECTANGLE,
                     g_param_spec_boolean ("fill_clip_rectangle",
                                   _( "Fill clip rectangle" ),
                                   _( "Fill clip rectangle" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_X_OFFSET,
                     g_param_spec_double ("x_offset",
                                  _( "X Offset" ),
                                  _( "X Offset" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_Y_OFFSET,
                     g_param_spec_double ("y_offset",
                                  _( "Y Offset" ),
                                  _( "Y Offset" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_FILL_COLOR,
                     g_param_spec_string ("fill_color",
                                  _( "Fill color" ),
                                  _( "Fill color" ),
                                  NULL,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_FILL_COLOR_GDK,
                     g_param_spec_boxed ("fill_color_gdk",
                                 _( "GDK fill color" ),
                                 _( "GDK fill color" ),
                                 GDK_TYPE_COLOR,
                                 G_PARAM_READWRITE));


    g_object_class_install_property (gobject_class, PROP_FILL_COLOR_RGBA,
                     g_param_spec_uint ("fill_color_rgba",
                                _( "GDK fill color" ),
                                _( "GDK fill color" ),
                                0, G_MAXUINT, 0,
                                G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_FILL_STIPPLE,
                     g_param_spec_object ("fill_stipple",
                                  _( "Fill stipple" ),
                                  _( "Fill stipple" ),
                                  GDK_TYPE_DRAWABLE,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_TEXT_WIDTH,
                     g_param_spec_double ("text_width",
                                  _( "Text width" ),
                                  _( "Text width" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READABLE));

    g_object_class_install_property (gobject_class, PROP_TEXT_HEIGHT,
                     g_param_spec_double ("text_height",
                                  _( "Text height" ),
                                  _( "Text height" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READABLE));


    g_object_class_install_property (gobject_class, PROP_EDITABLE,
                     g_param_spec_boolean ("editable",
                                   _( "Editable" ),
                                   _( "Editable" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_USE_ELLIPSIS,
                     g_param_spec_boolean ("use_ellipsis",
                                   _( "Use ellipsis" ),
                                   _( "Use ellipsis" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_ELLIPSIS,
                     g_param_spec_string ("ellipsis",
                                  _( "Ellipsis" ),
                                  _( "Ellipsis" ),
                                  NULL,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_LINE_WRAP,
                     g_param_spec_boolean ("line_wrap",
                                   _( "Line wrap" ),
                                   _( "Line wrap" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_BREAK_CHARACTERS,
                     g_param_spec_string ("break_characters",
                                  _( "Break characters" ),
                                  _( "Break characters" ),
                                  NULL,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_MAX_LINES,
                     g_param_spec_int ("max_lines",
                               _( "Max lines" ),
                               _( "Max lines" ),
                               0, G_MAXINT, 0,
                               G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_WIDTH,
                     g_param_spec_double ("width",
                                  _( "Width" ),
                                  _( "Width" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READWRITE));


    g_object_class_install_property (gobject_class, PROP_HEIGHT,
                     g_param_spec_double ("height",
                                  _( "Height" ),
                                  _( "Height" ),
                                  0.0, G_MAXDOUBLE, 0.0,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_DRAW_BORDERS,
                     g_param_spec_boolean ("draw_borders",
                                   _( "Draw borders" ),
                                   _( "Draw borders" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_ALLOW_NEWLINES,
                     g_param_spec_boolean ("allow_newlines",
                                   _( "Allow newlines" ),
                                   _( "Allow newlines" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_DRAW_BACKGROUND,
                     g_param_spec_boolean ("draw_background",
                                   _( "Draw background" ),
                                   _( "Draw background" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_DRAW_BUTTON,
                     g_param_spec_boolean ("draw_button",
                                   _( "Draw button" ),
                                   _( "Draw button" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_CURSOR_POS,
                     g_param_spec_int ("cursor_pos",
                               _( "Cursor position" ),
                               _( "Cursor position" ),
                               0, G_MAXINT, 0,
                               G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_IM_CONTEXT,
                     g_param_spec_object ("im_context",
                                  _( "IM Context" ),
                                  _( "IM Context" ),
                                  GTK_TYPE_IM_CONTEXT,
                                  G_PARAM_READWRITE));

    g_object_class_install_property (gobject_class, PROP_HANDLE_POPUP,
                     g_param_spec_boolean ("handle_popup",
                                   _( "Handle Popup" ),
                                   _( "Handle Popup" ),
                                   FALSE,
                                   G_PARAM_READWRITE));

    if (!clipboard_atom)
        clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
}

/* Object initialization function for the text item */
static void
e_text_init (EText *text)
{
    text->model                   = e_text_model_new ();
    text->text                    = e_text_model_get_text (text->model);
    text->layout                  = NULL;

    text->revert                  = NULL;

    text->model_changed_signal_id = 
        g_signal_connect (text->model,
                  "changed",
                  G_CALLBACK (e_text_text_model_changed),
                  text);
    text->model_repos_signal_id   = 
        g_signal_connect (text->model,
                  "reposition",
                  G_CALLBACK (e_text_text_model_reposition),
                  text);

    text->anchor                  = GTK_ANCHOR_CENTER;
    text->justification           = GTK_JUSTIFY_LEFT;
    text->clip_width              = -1.0;
    text->clip_height             = -1.0;
    text->xofs                    = 0.0;
    text->yofs                    = 0.0;

    text->ellipsis                = NULL;
    text->use_ellipsis            = FALSE;
    text->ellipsis_width          = 0;

    text->editable                = FALSE;
    text->editing                 = FALSE;
    text->xofs_edit               = 0;
    text->yofs_edit               = 0;

    text->selection_start         = 0;
    text->selection_end           = 0;
    text->select_by_word          = FALSE;

    text->timeout_id              = 0;
    text->timer                   = NULL;

    text->lastx                   = 0;
    text->lasty                   = 0;
    text->last_state              = 0;

    text->scroll_start            = 0;
    text->show_cursor             = TRUE;
    text->button_down             = FALSE;

    text->tep                     = NULL;
    text->tep_command_id          = 0;

    text->has_selection           = FALSE;

    text->pointer_in              = FALSE;
    text->default_cursor_shown    = TRUE;
    text->line_wrap               = FALSE;
    text->break_characters        = NULL;
    text->max_lines               = -1;
    text->tooltip_timeout         = 0;
    text->tooltip_count           = 0;
    text->tooltip_owner           = FALSE;
    text->dbl_timeout             = 0;
    text->tpl_timeout             = 0;

    text->draw_background         = FALSE;
    text->draw_button             = FALSE;

    text->bold                    = FALSE;
    text->strikeout               = FALSE;

    text->allow_newlines          = TRUE;

    text->last_type_request       = -1;
    d(g_print ("Setting last_type_request to %d at line %d\n", text->last_type_request, __LINE__));
    text->last_time_request       = 0;
    text->queued_requests         = NULL;

    text->im_context              = NULL;
    text->need_im_reset           = FALSE;
    text->im_context_signals_registered = FALSE;

    text->handle_popup            = FALSE;


    e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(text), e_text_reflow);
}

/**
 * e_text_get_type:
 * @void: 
 * 
 * Registers the &EText class if necessary, and returns the type ID
 * associated to it.
 * 
 * Return value: The type ID of the &EText class.
 **/
E_MAKE_TYPE (e_text,
         "EText",
         EText,
         e_text_class_init,
         e_text_init,
         PARENT_TYPE)


/* IM Context Callbacks */
static void
e_text_commit_cb (GtkIMContext *context,
          const gchar  *str,
          EText        *text)
{
    if (g_utf8_validate (str, strlen (str), NULL)) {
        if (text->selection_end != text->selection_start)
            e_text_delete_selection (text);
        e_text_insert (text, str);
        g_signal_emit (text, e_text_signals[E_TEXT_KEYPRESS], 0,
                   0 /* XXX ugh */, 0 /* XXX ugh */);
    }
}

static gboolean
e_text_retrieve_surrounding_cb (GtkIMContext *context,
                EText        *text)
{
    printf ("e_text_retrieve_surrounding_cb\n");
    gtk_im_context_set_surrounding (context,
                    text->text,
                    strlen (text->text),
                    g_utf8_offset_to_pointer (text->text, text->selection_start) - text->text);
    
    return TRUE;
}

static gboolean
e_text_delete_surrounding_cb   (GtkIMContext *context,
                gint          offset,
                gint          n_chars,
                EText        *text)
{
    printf ("e_text_delete_surrounding_cb\n");
#if 0
    gtk_editable_delete_text (GTK_EDITABLE (entry),
                  entry->current_pos + offset,
                  entry->current_pos + offset + n_chars);
#endif

    return TRUE;
}