/* -*- 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 <gdk/gdkx.h> /* for BlackPixel */
#include <gtk/gtkinvisible.h>
#include <gtk/gtkmain.h>
#include <gtk/gtkselection.h>
#include <gtk/gtkwindow.h>
#include <libgnomeui/gnome-canvas-rect-ellipse.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 BORDER_INDENT 4
enum {
E_TEXT_CHANGED,
E_TEXT_ACTIVATE,
E_TEXT_KEYPRESS,
E_TEXT_POPUP,
E_TEXT_LAST_SIGNAL
};
static guint e_text_signals[E_TEXT_LAST_SIGNAL] = { 0 };
/* This defines a line of text */
struct line {
const char *text; /* Line's text, it is a pointer into the text->text string */
int length; /* Line's length IN BYTES */
int width; /* Line's width in pixels */
int ellipsis_length; /* Length before adding ellipsis */
};
/* Object argument IDs */
enum {
ARG_0,
ARG_MODEL,
ARG_EVENT_PROCESSOR,
ARG_TEXT,
ARG_FONT,
ARG_FONTSET,
ARG_FONT_GDK,
ARG_FONT_E,
ARG_BOLD,
ARG_STRIKEOUT,
ARG_ANCHOR,
ARG_JUSTIFICATION,
ARG_CLIP_WIDTH,
ARG_CLIP_HEIGHT,
ARG_CLIP,
ARG_FILL_CLIP_RECTANGLE,
ARG_X_OFFSET,
ARG_Y_OFFSET,
ARG_FILL_COLOR,
ARG_FILL_COLOR_GDK,
ARG_FILL_COLOR_RGBA,
ARG_FILL_STIPPLE,
ARG_TEXT_WIDTH,
ARG_TEXT_HEIGHT,
ARG_EDITABLE,
ARG_USE_ELLIPSIS,
ARG_ELLIPSIS,
ARG_LINE_WRAP,
ARG_BREAK_CHARACTERS,
ARG_MAX_LINES,
ARG_WIDTH,
ARG_HEIGHT,
ARG_DRAW_BORDERS,
ARG_ALLOW_NEWLINES,
ARG_DRAW_BACKGROUND,
ARG_DRAW_BUTTON,
ARG_CURSOR_POS
};
enum {
E_SELECTION_PRIMARY,
E_SELECTION_CLIPBOARD
};
enum _TargetInfo {
TARGET_UTF8_STRING,
TARGET_UTF8,
TARGET_COMPOUND_TEXT,
TARGET_STRING,
TARGET_TEXT
};
static void e_text_class_init (ETextClass *class);
static void e_text_init (EText *text);
static void e_text_destroy (GtkObject *object);
static void e_text_set_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_text_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_text_reflow (GnomeCanvasItem *item, int flags);
static void e_text_update (GnomeCanvasItem *item, double *affine,
ArtSVP *clip_path, int flags);
static void e_text_realize (GnomeCanvasItem *item);
static void e_text_unrealize (GnomeCanvasItem *item);
static void e_text_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
int x, int y, int width, int height);
static double e_text_point (GnomeCanvasItem *item, double x, double y, int cx, int cy,
GnomeCanvasItem **actual_item);
static void e_text_bounds (GnomeCanvasItem *item,
double *x1, double *y1, double *x2, double *y2);
static void e_text_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf);
static gint e_text_event (GnomeCanvasItem *item, GdkEvent *event);
static void e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data);
static void e_text_get_selection(EText *text, GdkAtom selection, guint32 time);
static void e_text_supply_selection (EText *text, guint time, GdkAtom selection, guchar *data, gint length);
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 GtkWidget *e_text_get_invisible(EText *text);
static void _selection_clear_event (GtkInvisible *invisible,
GdkEventSelection *event,
EText *text);
static void _selection_get (GtkInvisible *invisible,
GtkSelectionData *selection_data,
guint info,
guint time_stamp,
EText *text);
static void _selection_received (GtkInvisible *invisible,
GtkSelectionData *selection_data,
guint time,
EText *text);
#if 0
static ETextSuckFont *e_suck_font (GdkFont *font);
static void e_suck_font_free (ETextSuckFont *suckfont);
#endif
static void e_text_free_lines(EText *text);
static gint text_width_with_objects (ETextModel *model,
EFont *font, EFontStyle style,
const gchar *text, gint bytelen);
static void calc_height (EText *text);
static void calc_line_widths (EText *text);
static void split_into_lines (EText *text);
static GnomeCanvasItemClass *parent_class;
static GdkAtom clipboard_atom = GDK_NONE;
/**
* 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.
**/
GtkType
e_text_get_type (void)
{
static GtkType text_type = 0;
if (!text_type) {
GtkTypeInfo text_info = {
"EText",
sizeof (EText),
sizeof (ETextClass),
(GtkClassInitFunc) e_text_class_init,
(GtkObjectInitFunc) e_text_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
text_type = gtk_type_unique (gnome_canvas_item_get_type (), &text_info);
}
return text_type;
}
/* Class initialization function for the text item */
static void
e_text_class_init (ETextClass *klass)
{
GtkObjectClass *object_class;
GnomeCanvasItemClass *item_class;
object_class = (GtkObjectClass *) klass;
item_class = (GnomeCanvasItemClass *) klass;
parent_class = gtk_type_class (gnome_canvas_item_get_type ());
e_text_signals[E_TEXT_CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_LAST,
E_OBJECT_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (ETextClass, changed),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
e_text_signals[E_TEXT_ACTIVATE] =
gtk_signal_new ("activate",
GTK_RUN_LAST,
E_OBJECT_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (ETextClass, activate),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
e_text_signals[E_TEXT_KEYPRESS] =
gtk_signal_new ("keypress",
GTK_RUN_LAST,
E_OBJECT_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (ETextClass, keypress),
gtk_marshal_NONE__INT_INT,
GTK_TYPE_NONE, 2, GTK_TYPE_UINT, GTK_TYPE_UINT);
e_text_signals[E_TEXT_POPUP] =
gtk_signal_new ("popup",
GTK_RUN_LAST,
E_OBJECT_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (ETextClass, popup),
gtk_marshal_NONE__POINTER_INT,
GTK_TYPE_NONE, 2, GTK_TYPE_POINTER, GTK_TYPE_INT);
E_OBJECT_CLASS_ADD_SIGNALS (object_class, e_text_signals, E_TEXT_LAST_SIGNAL);
gtk_object_add_arg_type ("EText::model",
GTK_TYPE_OBJECT, GTK_ARG_READWRITE, ARG_MODEL);
gtk_object_add_arg_type ("EText::event_processor",
GTK_TYPE_OBJECT, GTK_ARG_READWRITE, ARG_EVENT_PROCESSOR);
gtk_object_add_arg_type ("EText::text",
GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_TEXT);
gtk_object_add_arg_type ("EText::font",
GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FONT);
gtk_object_add_arg_type ("EText::fontset",
GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FONTSET);
gtk_object_add_arg_type ("EText::font_gdk",
GTK_TYPE_GDK_FONT, GTK_ARG_WRITABLE, ARG_FONT_GDK);
gtk_object_add_arg_type ("EText::font_e",
GTK_TYPE_POINTER, GTK_ARG_READWRITE, ARG_FONT_E);
gtk_object_add_arg_type ("EText::bold",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_BOLD);
gtk_object_add_arg_type ("EText::strikeout",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_STRIKEOUT);
gtk_object_add_arg_type ("EText::anchor",
GTK_TYPE_ANCHOR_TYPE, GTK_ARG_READWRITE, ARG_ANCHOR);
gtk_object_add_arg_type ("EText::justification",
GTK_TYPE_JUSTIFICATION, GTK_ARG_READWRITE, ARG_JUSTIFICATION);
gtk_object_add_arg_type ("EText::clip_width",
GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_CLIP_WIDTH);
gtk_object_add_arg_type ("EText::clip_height",
GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_CLIP_HEIGHT);
gtk_object_add_arg_type ("EText::clip",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_CLIP);
gtk_object_add_arg_type ("EText::fill_clip_rectangle",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_FILL_CLIP_RECTANGLE);
gtk_object_add_arg_type ("EText::x_offset",
GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_X_OFFSET);
gtk_object_add_arg_type ("EText::y_offset",
GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_Y_OFFSET);
gtk_object_add_arg_type ("EText::fill_color",
GTK_TYPE_STRING, GTK_ARG_WRITABLE, ARG_FILL_COLOR);
gtk_object_add_arg_type ("EText::fill_color_gdk",
GTK_TYPE_GDK_COLOR, GTK_ARG_READWRITE, ARG_FILL_COLOR_GDK);
gtk_object_add_arg_type ("EText::fill_color_rgba",
GTK_TYPE_UINT, GTK_ARG_READWRITE, ARG_FILL_COLOR_RGBA);
gtk_object_add_arg_type ("EText::fill_stipple",
GTK_TYPE_GDK_WINDOW, GTK_ARG_READWRITE, ARG_FILL_STIPPLE);
gtk_object_add_arg_type ("EText::text_width",
GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_TEXT_WIDTH);
gtk_object_add_arg_type ("EText::text_height",
GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_TEXT_HEIGHT);
gtk_object_add_arg_type ("EText::editable",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_EDITABLE);
gtk_object_add_arg_type ("EText::use_ellipsis",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_USE_ELLIPSIS);
gtk_object_add_arg_type ("EText::ellipsis",
GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_ELLIPSIS);
gtk_object_add_arg_type ("EText::line_wrap",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_LINE_WRAP);
gtk_object_add_arg_type ("EText::break_characters",
GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_BREAK_CHARACTERS);
gtk_object_add_arg_type ("EText::max_lines",
GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_MAX_LINES);
gtk_object_add_arg_type ("EText::width",
GTK_TYPE_DOUBLE, GTK_ARG_READWRITE, ARG_WIDTH);
gtk_object_add_arg_type ("EText::height",
GTK_TYPE_DOUBLE, GTK_ARG_READABLE, ARG_HEIGHT);
gtk_object_add_arg_type ("EText::draw_borders",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_DRAW_BORDERS);
gtk_object_add_arg_type ("EText::allow_newlines",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_ALLOW_NEWLINES);
gtk_object_add_arg_type ("EText::draw_background",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_DRAW_BACKGROUND);
gtk_object_add_arg_type ("EText::draw_button",
GTK_TYPE_BOOL, GTK_ARG_READWRITE, ARG_DRAW_BUTTON);
gtk_object_add_arg_type ("EText::cursor_pos",
GTK_TYPE_INT, GTK_ARG_READWRITE, ARG_CURSOR_POS);
if (!clipboard_atom)
clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
klass->changed = NULL;
klass->activate = NULL;
object_class->destroy = e_text_destroy;
object_class->set_arg = e_text_set_arg;
object_class->get_arg = e_text_get_arg;
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->render = e_text_render;
item_class->event = e_text_event;
}
/* 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->revert = NULL;
gtk_object_ref (GTK_OBJECT (text->model));
gtk_object_sink (GTK_OBJECT (text->model));
text->model_changed_signal_id =
gtk_signal_connect (GTK_OBJECT (text->model),
"changed",
GTK_SIGNAL_FUNC (e_text_text_model_changed),
text);
text->model_repos_signal_id =
gtk_signal_connect (GTK_OBJECT (text->model),
"reposition",
GTK_SIGNAL_FUNC (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->invisible = NULL;
text->primary_selection = NULL;
text->primary_length = 0;
text->clipboard_selection = NULL;
text->clipboard_length = 0;
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->style = E_FONT_PLAIN;
text->allow_newlines = TRUE;
text->last_type_request = -1;
text->last_time_request = 0;
text->queued_requests = NULL;
e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(text), e_text_reflow);
}
/* Destroy handler for the text item */
static void
e_text_destroy (GtkObject *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));
}
if (text->model_changed_signal_id)
gtk_signal_disconnect (GTK_OBJECT (text->model),
text->model_changed_signal_id);
if (text->model_repos_signal_id)
gtk_signal_disconnect (GTK_OBJECT (text->model),
text->model_repos_signal_id);
if (text->model)
gtk_object_unref(GTK_OBJECT(text->model));
if (text->tep_command_id)
gtk_signal_disconnect(GTK_OBJECT(text->tep),
text->tep_command_id);
if (text->tep)
gtk_object_unref (GTK_OBJECT(text->tep));
if (text->invisible)
gtk_object_unref (GTK_OBJECT(text->invisible));
g_free (text->lines);
g_free (text->primary_selection);
g_free (text->clipboard_selection);
g_free (text->revert);
if (text->font)
e_font_unref (text->font);
text->font = NULL;
#if 0
if (text->suckfont)
e_suck_font_free (text->suckfont);
#endif
if (text->stipple)
gdk_bitmap_unref (text->stipple);
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 (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
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);
e_text_free_lines(text);
gtk_signal_emit (GTK_OBJECT (text), e_text_signals[E_TEXT_CHANGED]);
/* 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_split_into_lines = 1;
e_canvas_item_request_reflow (GNOME_CANVAS_ITEM(text));
}
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_item_relative (EText *text, double *px1, double *py1, double *px2, double *py2)
{
GnomeCanvasItem *item;
double x, y;
double clip_x, clip_y;
int old_height;
item = GNOME_CANVAS_ITEM (text);
x = 0;
y = 0;
clip_x = x;
clip_y = y;
/* Calculate text dimensions */
old_height = text->height;
if (text->text && text->font)
text->height = (e_font_height (text->font)) * text->num_lines;
else
text->height = 0;
if (old_height != text->height)
e_canvas_item_request_parent_reflow(item);
/* 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:
x -= text->max_width / 2;
if ( text->clip_width >= 0)
clip_x -= text->clip_width / 2;
else
clip_x -= text->width / 2;
break;
case GTK_ANCHOR_NE:
case GTK_ANCHOR_E:
case GTK_ANCHOR_SE:
x -= text->max_width;
if (text->clip_width >= 0)
clip_x -= text->clip_width;
else
clip_x -= text->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:
y -= text->height / 2;
if ( text->clip_height >= 0 )
clip_y -= text->clip_height / 2;
else
clip_y -= text->height / 2;
break;
case GTK_ANCHOR_SW:
case GTK_ANCHOR_S:
case GTK_ANCHOR_SE:
y -= text->height;
if ( text->clip_height >= 0 )
clip_y -= text->clip_height;
else
clip_y -= text->height;
break;
}
/* Bounds */
if (text->clip) {
/* maybe do bbox intersection here? */
*px1 = clip_x;
*py1 = clip_y;
if (text->clip_width >= 0)
*px2 = clip_x + text->clip_width;
else
*px2 = clip_x + text->width;
if ( text->clip_height >= 0 )
*py2 = clip_y + text->clip_height;
else
*py2 = clip_y + text->height;
} else {
*px1 = x;
*py1 = y;
*px2 = x + text->max_width;
*py2 = y + text->height;
}
}
static void
get_bounds (EText *text, double *px1, double *py1, double *px2, double *py2)
{
GnomeCanvasItem *item;
double wx, wy, clip_width;
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);
if (text->clip_width < 0)
clip_width = text->max_width;
else
clip_width = text->clip_width;
/* Get canvas pixel coordinates for clip rectangle position */
gnome_canvas_w2c (item->canvas, wx, wy, &text->clip_cx, &text->clip_cy);
text->clip_cwidth = clip_width * item->canvas->pixels_per_unit;
if ( text->clip_height >= 0 )
text->clip_cheight = text->clip_height * item->canvas->pixels_per_unit;
else
text->clip_cheight = text->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->max_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->max_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;
}
/* 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->max_width;
*py2 = text->cy + text->height;
}
}
static void
calc_height (EText *text)
{
GnomeCanvasItem *item;
int old_height;
item = GNOME_CANVAS_ITEM (text);
/* Calculate text dimensions */
old_height = text->height;
if (text->text && text->font)
text->height = e_font_height (text->font) * text->num_lines;
else
text->height = 0;
if (old_height != text->height)
e_canvas_item_request_parent_reflow(item);
}
static void
calc_ellipsis (EText *text)
{
if (text->font)
text->ellipsis_width =
e_font_utf8_text_width (text->font, text->style,
text->ellipsis ? text->ellipsis : "...",
text->ellipsis ? strlen (text->ellipsis) : 3);
}
/* Calculates the line widths (in pixels) of the text's splitted lines */
static void
calc_line_widths (EText *text)
{
struct line *lines;
int i;
gdouble clip_width;
const gchar *p;
lines = text->lines;
text->max_width = 0;
clip_width = text->clip_width;
if (clip_width >= 0 && text->draw_borders) {
clip_width -= 6;
if (clip_width < 0)
clip_width = 0;
}
if (!lines)
return;
for (i = 0; i < text->num_lines; i++) {
if (lines->length != 0) {
if (text->font) {
lines->width = text_width_with_objects (text->model,
text->font, text->style,
lines->text, lines->length);
lines->ellipsis_length = 0;
} else {
lines->width = 0;
}
if (text->clip &&
text->use_ellipsis &&
! text->editing &&
lines->width > clip_width &&
clip_width >= 0) {
if (text->font) {
lines->ellipsis_length = 0;
for (p = lines->text;
p && *p && g_unichar_validate (g_utf8_get_char (p)) && (p - lines->text) < lines->length;
p = g_utf8_next_char (p)) {
gint text_width = text_width_with_objects (text->model,
text->font, text->style,
lines->text, p - lines->text);
if (clip_width >= text_width + text->ellipsis_width)
lines->ellipsis_length = p - lines->text;
else
break;
}
}
else
lines->ellipsis_length = 0;
lines->width = text_width_with_objects (text->model,
text->font, text->style,
lines->text, lines->ellipsis_length) +
text->ellipsis_width;
} else
lines->ellipsis_length = lines->length;
if (lines->width > text->max_width)
text->max_width = lines->width;
}
lines++;
}
}
static void
e_text_free_lines(EText *text)
{
if (text->lines)
g_free (text->lines);
text->lines = NULL;
text->num_lines = 0;
}
static gint
text_width_with_objects (ETextModel *model,
EFont *font, EFontStyle style,
const gchar *text, gint numbytes)
{
return text && *text ? e_font_utf8_text_width (font, style, text, numbytes) : 0;
}
static void
text_draw_with_objects (ETextModel *model,
GdkDrawable *drawable,
EFont *font, EFontStyle style,
GdkGC *gc,
gint x, gint y,
const gchar *text, gint numbytes)
{
const gchar *c;
if (text == NULL)
return;
while (*text && numbytes > 0) {
gint obj_num = -1;
c = text;
while (*c
&& (obj_num = e_text_model_get_object_at_pointer (model, c)) == -1
&& numbytes > 0) {
++c;
--numbytes;
}
e_font_draw_utf8_text (drawable, font, style, gc, x, y, text, c-text);
x += e_font_utf8_text_width (font, style, text, c-text);
if (obj_num != -1 && numbytes > 0) {
gint len;
gint start_x = x;
e_text_model_get_nth_object (model, obj_num, &len);
if (len > numbytes)
len = numbytes;
e_font_draw_utf8_text (drawable, font, style, gc, x, y, c, len);
x += e_font_utf8_text_width (font, style, c, len);
/* We underline our objects. */
gdk_draw_line (drawable, gc, start_x, y+1, x, y+1);
c += len;
numbytes -= len;
}
text = c;
}
}
typedef void (*LineSplitterFn) (int line_num, const char *start, int length, gpointer user_data);
#define IS_BREAK_CHAR(break_chars, c) (g_unichar_isspace (c) || ((break_chars) && g_utf8_strchr ((break_chars), (c))))
static gint
line_splitter (ETextModel *model, EFont *font, EFontStyle style,
const char *break_characters,
gboolean wrap_lines, double clip_width, gint max_lines,
LineSplitterFn split_cb, gpointer user_data)
{
const char *curr;
const char *text;
const char *linestart;
const char *last_breakpoint;
gint line_count = 0;
gunichar unival;
if (max_lines < 1)
max_lines = G_MAXINT;
text = e_text_model_get_text (model);
linestart = NULL;
last_breakpoint = text;
for (curr = text; curr && *curr && line_count < max_lines; curr = g_utf8_next_char (curr)) {
unival = g_utf8_get_char (curr);
if (linestart == NULL)
linestart = curr;
if (unival == '\n') { /* We always break on newline */
if (split_cb)
split_cb (line_count, linestart, curr - linestart, user_data);
++line_count;
linestart = NULL;
} else if (wrap_lines) {
if (clip_width < text_width_with_objects (model, font, style, linestart, curr - linestart)
&& last_breakpoint > linestart) {
if (split_cb)
split_cb (line_count, linestart, last_breakpoint - linestart, user_data);
++line_count;
linestart = NULL;
curr = last_breakpoint;
} else if (IS_BREAK_CHAR (break_characters, unival)
&& e_text_model_get_object_at_pointer (model, curr) == -1) { /* don't break mid-object */
last_breakpoint = curr;
}
}
}
/* Handle any leftover text. */
if (linestart) {
if (clip_width < text_width_with_objects (model, font, style, linestart, strlen (linestart))
&& last_breakpoint > linestart) {
if (split_cb)
split_cb (line_count, linestart, last_breakpoint - linestart, user_data);
++line_count;
linestart = g_utf8_next_char (last_breakpoint);
}
if (split_cb)
split_cb (line_count, linestart, strlen (linestart), user_data);
++line_count;
}
return line_count;
}
static void
line_split_cb (int line_num, const char *start, int length, gpointer user_data)
{
EText *text = user_data;
struct line *line = &((struct line *)text->lines)[line_num];
line->text = start;
line->length = length;
}
static void
split_into_lines (EText *text)
{
double clip_width;
if (text->text == NULL)
return;
/* Free old array of lines */
e_text_free_lines (text);
clip_width = text->clip_width;
if (clip_width >= 0 && text->draw_borders) {
clip_width -= 6;
if (clip_width < 0)
clip_width = 0;
}
/* First, count the number of lines */
text->num_lines = line_splitter (text->model, text->font, text->style,
text->break_characters,
text->line_wrap, text->clip_width, -1,
NULL, NULL);
/* Allocate our array of lines */
text->lines = g_new0 (struct line, text->num_lines);
text->num_lines = line_splitter (text->model, text->font, text->style,
text->break_characters,
text->line_wrap, text->clip_width, text->num_lines,
line_split_cb, text);
}
/* 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_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
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 (arg_id) {
case ARG_MODEL:
if ( text->model_changed_signal_id )
gtk_signal_disconnect (GTK_OBJECT (text->model),
text->model_changed_signal_id);
if ( text->model_repos_signal_id )
gtk_signal_disconnect (GTK_OBJECT (text->model),
text->model_repos_signal_id);
gtk_object_unref (GTK_OBJECT (text->model));
text->model = E_TEXT_MODEL (GTK_VALUE_OBJECT (*arg));
gtk_object_ref (GTK_OBJECT (text->model));
text->model_changed_signal_id =
gtk_signal_connect (GTK_OBJECT (text->model),
"changed",
GTK_SIGNAL_FUNC (e_text_text_model_changed),
text);
text->model_repos_signal_id =
gtk_signal_connect (GTK_OBJECT (text->model),
"reposition",
GTK_SIGNAL_FUNC (e_text_text_model_reposition),
text);
e_text_free_lines(text);
text->text = e_text_model_get_text(text->model);
gtk_signal_emit (GTK_OBJECT (text), e_text_signals[E_TEXT_CHANGED]);
text->needs_split_into_lines = 1;
needs_reflow = 1;
break;
case ARG_EVENT_PROCESSOR:
if ( text->tep && text->tep_command_id )
gtk_signal_disconnect(GTK_OBJECT(text->tep),
text->tep_command_id);
if ( text->tep ) {
gtk_object_unref(GTK_OBJECT(text->tep));
}
text->tep = E_TEXT_EVENT_PROCESSOR(GTK_VALUE_OBJECT (*arg));
gtk_object_ref(GTK_OBJECT(text->tep));
text->tep_command_id =
gtk_signal_connect(GTK_OBJECT(text->tep),
"command",
GTK_SIGNAL_FUNC(e_text_command),
text);
if (!text->allow_newlines)
gtk_object_set (GTK_OBJECT (text->tep),
"allow_newlines", FALSE,
NULL);
break;
case ARG_TEXT:
text->num_lines = 1;
e_text_model_set_text(text->model, GTK_VALUE_STRING (*arg));
break;
case ARG_FONT:
if (text->font)
e_font_unref (text->font);
text->font = e_font_from_gdk_name (GTK_VALUE_STRING (*arg));
calc_ellipsis (text);
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_FONTSET:
if (text->font)
e_font_unref (text->font);
text->font = e_font_from_gdk_name (GTK_VALUE_STRING (*arg));
calc_ellipsis (text);
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_FONT_GDK:
/* Ref the font in case it was the font that is stored
in the e-font */
gdk_font_ref (GTK_VALUE_POINTER (*arg));
if (text->font)
e_font_unref (text->font);
text->font = e_font_from_gdk_font (GTK_VALUE_POINTER (*arg));
calc_ellipsis (text);
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_FONT_E:
if (text->font)
e_font_unref (text->font);
text->font = GTK_VALUE_POINTER (*arg);
e_font_ref (text->font);
calc_ellipsis (text);
if (text->line_wrap)
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_BOLD:
text->bold = GTK_VALUE_BOOL (*arg);
text->style = text->bold ? E_FONT_BOLD : E_FONT_PLAIN;
text->needs_redraw = 1;
text->needs_recalc_bounds = 1;
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_update = 1;
needs_reflow = 1;
break;
case ARG_STRIKEOUT:
text->strikeout = GTK_VALUE_BOOL (*arg);
text->needs_redraw = 1;
needs_update = 1;
break;
case ARG_ANCHOR:
text->anchor = GTK_VALUE_ENUM (*arg);
text->needs_recalc_bounds = 1;
needs_update = 1;
break;
case ARG_JUSTIFICATION:
text->justification = GTK_VALUE_ENUM (*arg);
text->needs_redraw = 1;
needs_update = 1;
break;
case ARG_CLIP_WIDTH:
text->clip_width = fabs (GTK_VALUE_DOUBLE (*arg));
calc_ellipsis (text);
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_CLIP_HEIGHT:
text->clip_height = fabs (GTK_VALUE_DOUBLE (*arg));
text->needs_recalc_bounds = 1;
needs_reflow = 1;
break;
case ARG_CLIP:
text->clip = GTK_VALUE_BOOL (*arg);
calc_ellipsis (text);
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_FILL_CLIP_RECTANGLE:
text->fill_clip_rectangle = GTK_VALUE_BOOL (*arg);
needs_update = 1;
break;
case ARG_X_OFFSET:
text->xofs = GTK_VALUE_DOUBLE (*arg);
text->needs_recalc_bounds = 1;
needs_update = 1;
break;
case ARG_Y_OFFSET:
text->yofs = GTK_VALUE_DOUBLE (*arg);
text->needs_recalc_bounds = 1;
needs_update = 1;
break;
case ARG_FILL_COLOR:
if (GTK_VALUE_STRING (*arg))
gdk_color_parse (GTK_VALUE_STRING (*arg), &color);
text->rgba = ((color.red & 0xff00) << 16 |
(color.green & 0xff00) << 8 |
(color.blue & 0xff00) |
0xff);
color_changed = TRUE;
break;
case ARG_FILL_COLOR_GDK:
pcolor = GTK_VALUE_BOXED (*arg);
if (pcolor) {
color = *pcolor;
}
text->rgba = ((color.red & 0xff00) << 16 |
(color.green & 0xff00) << 8 |
(color.blue & 0xff00) |
0xff);
color_changed = TRUE;
break;
case ARG_FILL_COLOR_RGBA:
text->rgba = GTK_VALUE_UINT (*arg);
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 ARG_FILL_STIPPLE:
set_stipple (text, GTK_VALUE_BOXED (*arg), FALSE);
text->needs_redraw = 1;
needs_update = 1;
break;
case ARG_EDITABLE:
text->editable = GTK_VALUE_BOOL (*arg);
text->needs_redraw = 1;
needs_update = 1;
break;
case ARG_USE_ELLIPSIS:
text->use_ellipsis = GTK_VALUE_BOOL (*arg);
text->needs_calc_line_widths = 1;
needs_reflow = 1;
break;
case ARG_ELLIPSIS:
if (text->ellipsis)
g_free (text->ellipsis);
text->ellipsis = g_strdup (GTK_VALUE_STRING (*arg));
calc_ellipsis (text);
text->needs_calc_line_widths = 1;
needs_reflow = 1;
break;
case ARG_LINE_WRAP:
text->line_wrap = GTK_VALUE_BOOL (*arg);
text->needs_split_into_lines = 1;
needs_reflow = 1;
break;
case ARG_BREAK_CHARACTERS:
if ( text->break_characters ) {
g_free(text->break_characters);
text->break_characters = NULL;
}
if ( GTK_VALUE_STRING (*arg) )
text->break_characters = g_strdup( GTK_VALUE_STRING (*arg) );
text->needs_split_into_lines = 1;
needs_reflow = 1;
break;
case ARG_MAX_LINES:
text->max_lines = GTK_VALUE_INT (*arg);
text->needs_split_into_lines = 1;
needs_reflow = 1;
break;
case ARG_WIDTH:
text->clip_width = fabs (GTK_VALUE_DOUBLE (*arg));
calc_ellipsis (text);
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else {
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
needs_reflow = 1;
break;
case ARG_DRAW_BORDERS:
if (text->draw_borders != GTK_VALUE_BOOL (*arg)) {
text->draw_borders = GTK_VALUE_BOOL (*arg);
text->needs_calc_height = 1;
text->needs_redraw = 1;
needs_reflow = 1;
needs_update = 1;
}
break;
case ARG_DRAW_BACKGROUND:
if (text->draw_background != GTK_VALUE_BOOL (*arg)){
text->draw_background = GTK_VALUE_BOOL (*arg);
text->needs_redraw = 1;
}
break;
case ARG_DRAW_BUTTON:
if (text->draw_button != GTK_VALUE_BOOL (*arg)){
text->draw_button = GTK_VALUE_BOOL (*arg);
text->needs_redraw = 1;
}
break;
case ARG_ALLOW_NEWLINES:
text->allow_newlines = GTK_VALUE_BOOL (*arg);
_get_tep(text);
gtk_object_set (GTK_OBJECT (text->tep),
"allow_newlines", GTK_VALUE_BOOL (*arg),
NULL);
break;
case ARG_CURSOR_POS: {
ETextEventProcessorCommand command;
command.action = E_TEP_MOVE;
command.position = E_TEP_VALUE;
command.value = GTK_VALUE_INT (*arg);
command.time = GDK_CURRENT_TIME;
e_text_command (text->tep, &command, text);
break;
}
default:
return;
}
if (color_changed) {
if (GNOME_CANVAS_ITEM_REALIZED & GTK_OBJECT_FLAGS(item))
gdk_color_context_query_color (item->canvas->cc, &color);
text->color = 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_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
EText *text;
GdkColor *color;
text = E_TEXT (object);
switch (arg_id) {
case ARG_MODEL:
GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(text->model);
break;
case ARG_EVENT_PROCESSOR:
_get_tep(text);
GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(text->tep);
break;
case ARG_TEXT:
GTK_VALUE_STRING (*arg) = g_strdup (text->text);
break;
case ARG_FONT_E:
GTK_VALUE_BOXED (*arg) = text->font;
break;
case ARG_BOLD:
GTK_VALUE_BOOL (*arg) = text->bold;
break;
case ARG_STRIKEOUT:
GTK_VALUE_BOOL (*arg) = text->strikeout;
break;
case ARG_ANCHOR:
GTK_VALUE_ENUM (*arg) = text->anchor;
break;
case ARG_JUSTIFICATION:
GTK_VALUE_ENUM (*arg) = text->justification;
break;
case ARG_CLIP_WIDTH:
GTK_VALUE_DOUBLE (*arg) = text->clip_width;
break;
case ARG_CLIP_HEIGHT:
GTK_VALUE_DOUBLE (*arg) = text->clip_height;
break;
case ARG_CLIP:
GTK_VALUE_BOOL (*arg) = text->clip;
break;
case ARG_FILL_CLIP_RECTANGLE:
GTK_VALUE_BOOL (*arg) = text->fill_clip_rectangle;
break;
case ARG_X_OFFSET:
GTK_VALUE_DOUBLE (*arg) = text->xofs;
break;
case ARG_Y_OFFSET:
GTK_VALUE_DOUBLE (*arg) = text->yofs;
break;
case ARG_FILL_COLOR_GDK:
color = g_new (GdkColor, 1);
*color = text->color;
GTK_VALUE_BOXED (*arg) = color;
break;
case ARG_FILL_COLOR_RGBA:
GTK_VALUE_UINT (*arg) = text->rgba;
break;
case ARG_FILL_STIPPLE:
GTK_VALUE_BOXED (*arg) = text->stipple;
break;
case ARG_TEXT_WIDTH:
GTK_VALUE_DOUBLE (*arg) = text->max_width / text->item.canvas->pixels_per_unit;
break;
case ARG_TEXT_HEIGHT:
GTK_VALUE_DOUBLE (*arg) = text->height / text->item.canvas->pixels_per_unit;
break;
case ARG_EDITABLE:
GTK_VALUE_BOOL (*arg) = text->editable;
break;
case ARG_USE_ELLIPSIS:
GTK_VALUE_BOOL (*arg) = text->use_ellipsis;
break;
case ARG_ELLIPSIS:
GTK_VALUE_STRING (*arg) = g_strdup (text->ellipsis);
break;
case ARG_LINE_WRAP:
GTK_VALUE_BOOL (*arg) = text->line_wrap;
break;
case ARG_BREAK_CHARACTERS:
GTK_VALUE_STRING (*arg) = g_strdup (text->break_characters);
break;
case ARG_MAX_LINES:
GTK_VALUE_INT (*arg) = text->max_lines;
break;
case ARG_WIDTH:
GTK_VALUE_DOUBLE (*arg) = text->clip_width;
break;
case ARG_HEIGHT:
GTK_VALUE_DOUBLE (*arg) = text->clip && text->clip_height != -1 ? text->clip_height : text->height / text->item.canvas->pixels_per_unit;
break;
case ARG_DRAW_BORDERS:
GTK_VALUE_BOOL (*arg) = text->draw_borders;
break;
case ARG_DRAW_BACKGROUND:
GTK_VALUE_BOOL (*arg) = text->draw_background;
break;
case ARG_DRAW_BUTTON:
GTK_VALUE_BOOL (*arg) = text->draw_button;
break;
case ARG_ALLOW_NEWLINES:
GTK_VALUE_BOOL (*arg) = text->allow_newlines;
break;
case ARG_CURSOR_POS:
GTK_VALUE_INT (*arg) = text->selection_start;
break;
default:
arg->type = GTK_TYPE_INVALID;
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_split_into_lines) {
split_into_lines (text);
text->needs_split_into_lines = 0;
text->needs_calc_line_widths = 1;
text->needs_calc_height = 1;
}
if ( text->needs_calc_line_widths ) {
int x;
int i;
struct line *lines;
gdouble clip_width;
calc_line_widths (text);
text->needs_calc_line_widths = 0;
text->needs_redraw = 1;
lines = text->lines;
if ( !lines )
return;
for (lines = text->lines, i = 0; i < text->num_lines ; i++, lines ++) {
if ((lines->text - text->text) > text->selection_end) {
break;
}
}
lines --;
i--;
x = text_width_with_objects (text->model,
text->font, text->style,
lines->text,
text->selection_end - (lines->text - text->text));
if (x < text->xofs_edit) {
text->xofs_edit = x;
}
clip_width = text->clip_width;
if (clip_width >= 0 && text->draw_borders) {
clip_width -= 6;
if (clip_width < 0)
clip_width = 0;
}
if (2 + x - clip_width > text->xofs_edit) {
text->xofs_edit = 2 + x - clip_width;
}
if (e_font_height (text->font) * i < text->yofs_edit)
text->yofs_edit = e_font_height (text->font) * i;
if ( text->needs_calc_height ) {
calc_height (text);
gnome_canvas_item_request_update(item);
text->needs_calc_height = 0;
text->needs_recalc_bounds = 1;
}
if (e_font_height (text->font) * (i + 1) -
(text->clip_height != -1 ? text->clip_height : text->height) > text->yofs_edit)
text->yofs_edit = e_font_height (text->font) * (i + 1) -
(text->clip_height != -1 ? text->clip_height : text->height);
gnome_canvas_item_request_update (item);
}
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;
ArtDRect i_bbox, c_bbox;
int i;
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;
}
} else {
/* aa rendering */
for (i = 0; i < 6; i++)
text->affine[i] = affine[i];
get_bounds_item_relative (text, &i_bbox.x0, &i_bbox.y0, &i_bbox.x1, &i_bbox.y1);
art_drect_affine_transform (&c_bbox, &i_bbox, affine);
}
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);
text->gc = gdk_gc_new (item->canvas->layout.bin_window);
gdk_color_context_query_color (item->canvas->cc, &text->color);
gdk_gc_set_foreground (text->gc, &text->color);
text->i_cursor = gdk_cursor_new (GDK_XTERM);
text->default_cursor = gdk_cursor_new (GDK_LEFT_PTR);
if (text->font == NULL) {
gdk_font_ref (GTK_WIDGET (item->canvas)->style->font);
text->font = e_font_from_gdk_font (GTK_WIDGET (item->canvas)->style->font);
}
}
/* 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);
}
/* Calculates the x position of the specified line of text, based on the text's justification */
static double
get_line_xpos_item_relative (EText *text, struct line *line)
{
double x;
x = 0;
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:
x -= text->max_width / 2;
break;
case GTK_ANCHOR_NE:
case GTK_ANCHOR_E:
case GTK_ANCHOR_SE:
x -= text->max_width;
break;
}
switch (text->justification) {
case GTK_JUSTIFY_RIGHT:
x += text->max_width - line->width;
break;
case GTK_JUSTIFY_CENTER:
x += (text->max_width - line->width) * 0.5;
break;
default:
if (text->draw_borders)
x += BORDER_INDENT;
/* For GTK_JUSTIFY_LEFT, we don't have to do anything. We do not support
* GTK_JUSTIFY_FILL, yet.
*/
break;
}
return x;
}
#if 0
/* Calculates the y position of the first line of text. */
static double
get_line_ypos_item_relative (EText *text)
{
double y;
y = 0;
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:
y -= text->height / 2;
break;
case GTK_ANCHOR_SW:
case GTK_ANCHOR_S:
case GTK_ANCHOR_SE:
y -= text->height;
break;
}
return y;
}
#endif
/* Calculates the x position of the specified line of text, based on the text's justification */
static int
get_line_xpos (EText *text, struct line *line)
{
int x;
x = text->cx;
switch (text->justification) {
case GTK_JUSTIFY_RIGHT:
x += text->max_width - line->width;
break;
case GTK_JUSTIFY_CENTER:
x += (text->max_width - line->width) / 2;
break;
default:
if (text->draw_borders)
x += BORDER_INDENT;
/* For GTK_JUSTIFY_LEFT, we don't have to do anything. We do not support
* GTK_JUSTIFY_FILL, yet.
*/
break;
}
return x;
}
static void
_get_tep(EText *text)
{
if (!text->tep) {
text->tep = e_text_event_processor_emacs_like_new();
gtk_object_ref (GTK_OBJECT (text->tep));
gtk_object_sink (GTK_OBJECT (text->tep));
text->tep_command_id =
gtk_signal_connect(GTK_OBJECT(text->tep),
"command",
GTK_SIGNAL_FUNC(e_text_command),
(gpointer) text);
}
}
/* 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;
struct line *lines;
int i;
int xpos, ypos;
int start_char, end_char;
int sel_start, sel_end;
GdkRectangle sel_rect;
GdkGC *fg_gc, *main_gc;
GnomeCanvas *canvas;
GtkWidget *widget;
text = E_TEXT (item);
canvas = GNOME_CANVAS_ITEM(text)->canvas;
widget = GTK_WIDGET(canvas);
fg_gc = widget->style->fg_gc[text->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE];
if (text->draw_background || text->draw_button) {
main_gc = widget->style->text_gc[GTK_STATE_NORMAL];
} 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);
gtk_object_get(GTK_OBJECT(text),
"width", &thiswidth,
"height", &thisheight,
NULL);
if (text->draw_borders){
if (text->editing) {
thisx += 1;
thisy += 1;
thiswidth -= 2;
thisheight -= 2;
}
gtk_paint_shadow (widget->style, drawable,
GTK_STATE_NORMAL, GTK_SHADOW_IN,
NULL, widget, "entry",
thisx, thisy, thiswidth, thisheight);
if (text->editing) {
thisx -= 1;
thisy -= 1;
thiswidth += 2;
thisheight += 2;
/*
* Chris: I am here "filling in" for the additions
* and substractions done in the previous if (text->editing).
* but you might have other plans for this. Please enlighten
* me as to whether it should be:
* thiswidth + 2 or thiswidth + 1.
*/
gtk_paint_focus (widget->style, drawable,
NULL, widget, "entry",
thisx, thisy, thiswidth - 1, thisheight - 1);
}
}
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->klass->xthickness,
thisy + widget->style->klass->ythickness,
thiswidth - widget->style->klass->xthickness * 2,
thisheight - widget->style->klass->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->klass->xthickness;
thisy += widget->style->klass->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,
&area, widget, "button",
thisx + xoff, thisy + yoff, thiswidth - 1, thisheight - 1);
}
}
}
if (!text->text || !text->font)
return;
lines = text->lines;
if ( !lines ) {
text->needs_split_into_lines = 1;
e_canvas_item_request_reflow (item);
return;
}
clip_rect = NULL;
if (text->clip) {
rect.x = text->clip_cx - x;
rect.y = text->clip_cy - y;
rect.width = text->clip_cwidth;
rect.height = text->clip_cheight;
gdk_gc_set_clip_rectangle (main_gc, &rect);
gdk_gc_set_clip_rectangle (fg_gc, &rect);
clip_rect = ▭
}
ypos = text->cy + e_font_ascent (text->font);
if (text->draw_borders)
ypos += BORDER_INDENT;
if (text->editing)
ypos -= text->yofs_edit;
if (text->stipple)
gnome_canvas_set_stipple_origin (item->canvas, main_gc);
for (i = 0; i < text->num_lines; i++) {
xpos = get_line_xpos (text, lines);
if (text->editing) {
xpos -= text->xofs_edit;
start_char = lines->text - text->text;
end_char = start_char + lines->length;
sel_start = text->selection_start;
sel_end = text->selection_end;
if (sel_start > sel_end ) {
sel_start ^= sel_end;
sel_end ^= sel_start;
sel_start ^= sel_end;
}
if ( sel_start < start_char )
sel_start = start_char;
if ( sel_end > end_char )
sel_end = end_char;
if ( sel_start < sel_end ) {
sel_rect.x = xpos - x + text_width_with_objects (text->model,
text->font, text->style,
lines->text,
sel_start - start_char);
sel_rect.y = ypos - y - e_font_ascent (text->font);
sel_rect.width = text_width_with_objects (text->model,
text->font, text->style,
lines->text + sel_start - start_char,
sel_end - sel_start);
sel_rect.height = e_font_height (text->font);
gtk_paint_flat_box(GTK_WIDGET(item->canvas)->style,
drawable,
text->has_selection ?
GTK_STATE_SELECTED :
GTK_STATE_ACTIVE,
GTK_SHADOW_NONE,
clip_rect,
GTK_WIDGET(item->canvas),
"text",
sel_rect.x,
sel_rect.y,
sel_rect.width,
sel_rect.height);
text_draw_with_objects (text->model,
drawable,
text->font, text->style,
main_gc,
xpos - x,
ypos - y,
lines->text,
sel_start - start_char);
text_draw_with_objects (text->model,
drawable,
text->font, text->style,
fg_gc,
xpos - x + text_width_with_objects (text->model,
text->font, text->style,
lines->text,
sel_start - start_char),
ypos - y,
lines->text + sel_start - start_char,
sel_end - sel_start);
text_draw_with_objects (text->model,
drawable,
text->font, text->style,
main_gc,
xpos - x + text_width_with_objects (text->model,
text->font, text->style,
lines->text,
sel_end - start_char),
ypos - y,
lines->text + sel_end - start_char,
end_char - sel_end);
} else {
text_draw_with_objects (text->model,
drawable,
text->font, text->style,
main_gc,
xpos - x,
ypos - y,
lines->text,
lines->length);
}
if (text->selection_start == text->selection_end &&
text->selection_start >= start_char &&
text->selection_start <= end_char &&
text->show_cursor) {
gdk_draw_rectangle (drawable,
main_gc,
TRUE,
xpos - x + text_width_with_objects (text->model,
text->font, text->style,
lines->text,
sel_start - start_char),
ypos - y - e_font_ascent (text->font),
1,
e_font_height (text->font));
}
} else {
if (text->clip && text->use_ellipsis && lines->ellipsis_length < lines->length) {
text_draw_with_objects (text->model,
drawable,
text->font, text->style,
main_gc,
xpos - x,
ypos - y,
lines->text,
lines->ellipsis_length);
e_font_draw_utf8_text (drawable,
text->font, text->style,
main_gc,
xpos - x + lines->width - text->ellipsis_width,
ypos - y,
text->ellipsis ? text->ellipsis : "...",
text->ellipsis ? strlen (text->ellipsis) : 3);
} else {
text_draw_with_objects (text->model,
drawable,
text->font, text->style,
main_gc,
xpos - x,
ypos - y,
lines->text,
lines->length);
}
}
if (text->strikeout)
gdk_draw_rectangle (drawable,
main_gc,
TRUE,
xpos - x,
ypos - y - e_font_ascent (text->font) / 2,
lines->width, 1);
ypos += e_font_height (text->font);
lines++;
}
if (text->clip) {
gdk_gc_set_clip_rectangle (main_gc, NULL);
gdk_gc_set_clip_rectangle (fg_gc, NULL);
}
}
/* Render handler for the text item */
static void
e_text_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf)
{
#if 0
EText *text;
guint32 fg_color;
double xpos, ypos;
struct line *lines;
int i, j;
double affine[6];
int dx, dy;
ArtPoint start_i, start_c;
text = E_TEXT (item);
if (!text->text || !text->font || !text->suckfont)
return;
suckfont = text->suckfont;
fg_color = text->rgba;
gnome_canvas_buf_ensure_buf (buf);
lines = text->lines;
if ( !lines )
return;
start_i.y = get_line_ypos_item_relative (text);
art_affine_scale (affine, item->canvas->pixels_per_unit, item->canvas->pixels_per_unit);
for (i = 0; i < 6; i++)
affine[i] = text->affine[i];
for (i = 0; i < text->num_lines; i++) {
if (lines->length != 0) {
start_i.x = get_line_xpos_item_relative (text, lines);
art_affine_point (&start_c, &start_i, text->affine);
xpos = start_c.x;
ypos = start_c.y;
for (j = 0; j < lines->length; j++) {
ETextSuckChar *ch;
ch = &suckfont->chars[(unsigned char)((lines->text)[j])];
affine[4] = xpos;
affine[5] = ypos;
art_rgb_bitmap_affine (
buf->buf,
buf->rect.x0, buf->rect.y0, buf->rect.x1, buf->rect.y1,
buf->buf_rowstride,
suckfont->bitmap + (ch->bitmap_offset >> 3),
ch->width,
suckfont->bitmap_height,
suckfont->bitmap_width >> 3,
fg_color,
affine,
ART_FILTER_NEAREST, NULL);
dx = ch->left_sb + ch->width + ch->right_sb;
xpos += dx * affine[0];
ypos += dx * affine[1];
}
}
dy = text->font->ascent + text->font->descent;
start_i.y += dy;
lines++;
}
buf->is_bg = 0;
#endif
}
/* 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;
int i;
struct line *lines;
int x1, y1, x2, y2;
int font_height;
int dx, dy;
double dist, best;
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->font)
font_height = e_font_height (text->font);
else
font_height = 0;
best = 1.0e36;
lines = text->lines;
if ( !lines ) {
text->needs_split_into_lines = 1;
e_canvas_item_request_reflow (item);
return 1;
}
if (text->fill_clip_rectangle) {
double clip_width;
double clip_height;
if (text->clip_width < 0)
clip_width = text->max_width;
else
clip_width = text->clip_width;
/* Get canvas pixel coordinates for clip rectangle position */
clip_width = clip_width * item->canvas->pixels_per_unit;
if ( text->clip_height >= 0 )
clip_height = text->clip_height * item->canvas->pixels_per_unit;
else
clip_height = text->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 0;
else
return 1;
}
for (i = 0; i < text->num_lines; i++) {
/* Compute the coordinates of rectangle for the current line,
* clipping if appropriate.
*/
x1 = get_line_xpos (text, lines);
y1 = text->cy + i * font_height;
x2 = x1 + lines->width;
y2 = y1 + font_height;
if (text->clip) {
if (x1 < text->clip_cx)
x1 = text->clip_cx;
if (y1 < text->clip_cy)
y1 = text->clip_cy;
if ( text->clip_width >= 0 ) {
if (x2 > (text->clip_cx + text->clip_width))
x2 = text->clip_cx + text->clip_width;
}
if ( text->clip_height >= 0 ) {
if (y2 > (text->clip_cy + text->clip_height))
y2 = text->clip_cy + text->clip_height;
}
if ((x1 >= x2) || (y1 >= y2))
continue;
}
/* Calculate distance from point to rectangle */
if (cx < x1)
dx = x1 - cx;
else if (cx >= x2)
dx = cx - x2 + 1;
else
dx = 0;
if (cy < y1)
dy = y1 - cy;
else if (cy >= y2)
dy = cy - y2 + 1;
else
dy = 0;
if ((dx == 0) && (dy == 0))
return 0.0;
dist = sqrt (dx * dx + dy * dy);
if (dist < best)
best = dist;
/* Next! */
lines++;
}
return best / item->canvas->pixels_per_unit;
}
/* 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;
if (text->clip) {
width = text->clip_width;
if ( text->clip_height >= 0 )
height = text->clip_height;
else height = text->height;
} else {
width = text->max_width / item->canvas->pixels_per_unit;
height = text->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 gboolean
_get_xy_from_position (EText *text, gint position, gint *xp, gint *yp)
{
if (text->lines && (xp || yp)) {
struct line *lines = NULL;
int x, y;
double xd, yd;
int j;
x = get_line_xpos_item_relative (text, lines);
y = text->yofs;
y -= text->yofs_edit;
for (j = 0, lines = text->lines; j < text->num_lines; lines++, j++) {
if (lines->text > text->text + position)
break;
y += e_font_height (text->font);
}
lines --;
y -= e_font_descent (text->font);
x += text_width_with_objects (text->model,
text->font, text->style,
lines->text,
position - (lines->text - text->text));
x -= text->xofs_edit;
xd = x; yd = y;
gnome_canvas_item_i2w (GNOME_CANVAS_ITEM(text), &xd, &yd);
gnome_canvas_w2c (GNOME_CANVAS_ITEM(text)->canvas, xd, yd, &x, &y);
if (xp)
*xp = x;
if (yp)
*yp = y;
return TRUE;
}
return FALSE;
}
static gint
_get_position_from_xy (EText *text, gint x, gint y)
{
int i, j;
int ypos = text->yofs;
int xpos;
double xd, yd;
const char *p;
gunichar unival;
gint font_ht, adjust=0;
struct line *lines;
xd = x; yd = y;
gnome_canvas_c2w (GNOME_CANVAS_ITEM(text)->canvas, xd, yd, &xd, &yd);
gnome_canvas_item_w2i (GNOME_CANVAS_ITEM(text), &xd, &yd);
x = xd; y = yd;
y += text->yofs_edit;
font_ht = e_font_height (text->font);
if (text->draw_borders)
ypos += BORDER_INDENT;
switch (text->anchor) {
case GTK_ANCHOR_WEST:
case GTK_ANCHOR_CENTER:
case GTK_ANCHOR_EAST:
y += (text->num_lines * font_ht)/2;
break;
case GTK_ANCHOR_SOUTH:
case GTK_ANCHOR_SOUTH_EAST:
case GTK_ANCHOR_SOUTH_WEST:
y += text->num_lines * font_ht;
default:
/* Do nothing */
break;
}
j = 0;
while (y > ypos) {
ypos += font_ht;
j ++;
}
j--;
if (j >= text->num_lines)
j = text->num_lines - 1;
if (j < 0)
j = 0;
i = 0;
lines = text->lines;
if ( !lines )
return 0;
lines += j;
x += text->xofs_edit;
xpos = get_line_xpos_item_relative (text, lines);
for (i = 0, p = lines->text; p && i < lines->length; i++, p = e_unicode_get_utf8 (p, &unival)) {
int charwidth;
int step1, step2;
#if 0
if (unival == '\1') {
const gchar *obj_str = NULL; /*e_text_model_get_nth_object (text->model, object_num);*/
charwidth = e_font_utf8_text_width (text->font, text->style, obj_str, strlen (obj_str));
++object_num;
step1 = charwidth;
step2 = 0;
adjust = -1;
} else {
#endif
charwidth = e_font_utf8_char_width (text->font, text->style, (gchar *) p);
step1 = charwidth / 2;
step2 = (charwidth + 1) / 2;
adjust = 0;
#if 0
}
#endif
xpos += step1;
if (xpos > x) {
break;
}
xpos += step2;
}
if (!p) return 0;
return MAX (p - text->text + adjust, 0);
}
#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, ¤t_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) {
if (text->lastx - text->clip_cx > text->clip_cwidth &&
text->xofs_edit < text->max_width - text->clip_cwidth) {
text->xofs_edit += 4;
if (text->xofs_edit > text->max_width - text->clip_cwidth + 1)
text->xofs_edit = text->max_width - text->clip_cwidth + 1;
redraw = TRUE;
}
if (text->lastx - text->clip_cx < 0 &&
text->xofs_edit > 0) {
text->xofs_edit -= 4;
if (text->xofs_edit < 0)
text->xofs_edit = 0;
redraw = TRUE;
}
if (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;
redraw = TRUE;
}
if (text->lasty - text->clip_cy < 0 &&
text->yofs_edit > 0) {
text->yofs_edit -= 4;
if (text->yofs_edit < 0)
text->yofs_edit = 0;
redraw = TRUE;
}
if (redraw) {
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;
}
}
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 (GTK_OBJECT_DESTROYED (text)) {
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 */
gtk_signal_emit_by_name (GTK_OBJECT (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(GtkWidget *tooltip, EText *text)
{
text->tooltip_owner = FALSE;
gtk_object_unref (GTK_OBJECT (text));
}
static gboolean
_do_tooltip (gpointer data)
{
EText *text = E_TEXT (data);
struct line *lines;
GtkWidget *canvas;
int i;
gdouble 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;
lines = text->lines;
if (E_CANVAS(GNOME_CANVAS_ITEM(text)->canvas)->tooltip_window || text->editing || (!lines)) {
text->tooltip_timeout = 0;
return FALSE;
}
cut_off = FALSE;
for ( lines = text->lines, i = 0; i < text->num_lines; lines++, i++ ) {
if (lines->length > lines->ellipsis_length) {
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 */
max_width = 0.0;
for (lines = text->lines, i = 0; i < text->num_lines; lines++, i++) {
gdouble line_width;
line_width = text_width_with_objects (text->model, text->font, text->style, lines->text, lines->length);
max_width = MAX (max_width, line_width);
}
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,
"font_e", text->font,
"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);
split_into_lines (E_TEXT(tooltip_text));
calc_height (E_TEXT(tooltip_text));
calc_line_widths (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)->max_width,
NULL);
tooltip_width = E_TEXT(tooltip_text)->max_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_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));
gtk_widget_show (canvas);
gtk_widget_realize (tooltip_window);
gtk_signal_connect (GTK_OBJECT(tooltip_window), "event",
GTK_SIGNAL_FUNC(tooltip_event), text);
gtk_signal_connect (GTK_OBJECT(tooltip_window), "destroy",
GTK_SIGNAL_FUNC(tooltip_destroy), text);
gtk_object_ref (GTK_OBJECT (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 (GTK_OBJECT_DESTROYED (item))
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) {
start_editing (text);
} else {
e_text_stop_editing (text);
if (text->timeout_id) {
g_source_remove(text->timeout_id);
text->timeout_id = 0;
}
}
if ( text->line_wrap )
text->needs_split_into_lines = 1;
else
text->needs_calc_line_widths = 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 = event->key;
gint ret;
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)
gtk_signal_emit (GTK_OBJECT (text), e_text_signals[E_TEXT_KEYPRESS],
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;
}
else
return 0;
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) {
gtk_signal_emit (GTK_OBJECT (text),
e_text_signals[E_TEXT_POPUP],
&(event->button),
_get_position_from_xy (text, event->button.x, event->button.y));
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 0
GdkEventCrossing *crossing = (GdkEventCrossing *) event;
double x1, y1, x2, y2;
split_into_lines (text);
calc_height (text);
calc_line_widths (text);
get_bounds (text, &x1, &y1, &x2, &y2);
if (crossing->x >= x1 &&
crossing->y >= y1 &&
crossing->x <= x2 &&
crossing->y <= y2) {
#endif
if ( text->tooltip_count == 0 && text->clip) {
if (!text->tooltip_timeout)
text->tooltip_timeout = gtk_timeout_add (1000, _do_tooltip, text);
}
text->tooltip_count ++;
#if 0
}
#endif
}
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;
}
/* fixme: */
static int
_get_position(EText *text, ETextEventProcessorCommand *command)
{
int length, obj_num;
int x, y;
gunichar unival;
char *p = NULL;
gint new_pos = 0;
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:
new_pos = 0;
if (text->selection_end >= 1) {
p = g_utf8_find_prev_char (text->text, text->text + text->selection_end);
if (p != text->text) {
p = g_utf8_find_prev_char (text->text, p);
while (p && p > text->text && !new_pos) {
if (*p == '\n')
new_pos = p - text->text + 1;
p = g_utf8_find_prev_char (text->text, p);
}
}
}
break;
case E_TEP_END_OF_LINE:
new_pos = -1;
length = strlen (text->text);
if (text->selection_end >= length) {
new_pos = length;
} else {
p = g_utf8_next_char (text->text + text->selection_end);
while (p && *p && g_unichar_validate (g_utf8_get_char (p))) {
if (*p == '\n') {
new_pos = p - text->text;
p = NULL;
} else
p = g_utf8_next_char (p);
}
}
if (new_pos == -1)
new_pos = p - text->text;
break;
case E_TEP_FORWARD_CHARACTER:
length = strlen (text->text);
if (text->selection_end >= length) {
new_pos = length;
} else {
p = g_utf8_next_char (text->text + text->selection_end);
new_pos = p - text->text;
}
break;
case E_TEP_BACKWARD_CHARACTER:
new_pos = 0;
if (text->selection_end >= 1) {
p = g_utf8_find_prev_char (text->text, text->text + text->selection_end);
if (p != NULL)
new_pos = p - text->text;
}
break;
case E_TEP_FORWARD_WORD:
new_pos = -1;
length = strlen (text->text);
if (text->selection_end >= length) {
new_pos = length;
} else {
p = g_utf8_next_char (text->text + text->selection_end);
while (p && *p && g_unichar_validate (g_utf8_get_char (p))) {
unival = g_utf8_get_char (p);
if (g_unichar_isspace (unival)) {
new_pos = p - text->text;
p = NULL;
} else
p = g_utf8_next_char (p);
}
}
if (new_pos == -1)
new_pos = p - text->text;
break;
case E_TEP_BACKWARD_WORD:
new_pos = 0;
if (text->selection_end >= 1) {
p = g_utf8_find_prev_char (text->text, text->text + text->selection_end);
if (p != text->text) {
p = g_utf8_find_prev_char (text->text, p);
while (p && p > text->text && g_unichar_validate (g_utf8_get_char (p))) {
unival = g_utf8_get_char (p);
if (g_unichar_isspace (unival)) {
new_pos = g_utf8_next_char (p) - text->text;
p = NULL;
} else
p = g_utf8_find_prev_char (text->text, p);
}
}
}
break;
case E_TEP_FORWARD_LINE:
if (_get_xy_from_position(text, text->selection_end, &x, &y)) {
y += e_font_height (text->font);
new_pos = _get_position_from_xy(text, x, y);
}
break;
case E_TEP_BACKWARD_LINE:
if (_get_xy_from_position(text, text->selection_end, &x, &y)) {
y -= e_font_height (text->font);
new_pos = _get_position_from_xy(text, x, y);
}
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_find_prev_char (text->text, text->text + text->selection_end);
if (p == text->text) {
new_pos = 0;
break;
}
p = g_utf8_find_prev_char (text->text, p);
while (p && p > text->text && g_unichar_validate (g_utf8_get_char (p))) {
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 = p - text->text;
text->selection_start = e_text_model_validate_position (text->model, text->selection_start);
length = strlen (text->text);
if (text->selection_end >= length) {
new_pos = length;
break;
}
p = g_utf8_next_char (text->text + text->selection_end);
while (p && *p && g_unichar_validate (g_utf8_get_char (p))) {
unival = g_utf8_get_char (p);
if (g_unichar_isspace (unival)) {
new_pos = p - text->text;
p = NULL;
} else
p = g_utf8_next_char (p);
}
if (p)
new_pos = p - text->text;
return new_pos;
case E_TEP_SELECT_ALL:
text->selection_start = 0;
new_pos = strlen (text->text);
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
_delete_selection(EText *text)
{
if ( text->selection_start < text->selection_end ) {
e_text_model_delete(text->model, text->selection_start, text->selection_end - text->selection_start);
#if 0
text->selection_end = text->selection_start;
#endif
} else {
e_text_model_delete(text->model, text->selection_end, text->selection_start - text->selection_end);
#if 0
text->selection_start = text->selection_end;
#endif
}
}
static void
_insert(EText *text, char *string, int value)
{
if (value > 0) {
if (!text->allow_newlines) {
char *i;
for (i = string; *i; i++) {
if (*i == '\n') {
char *new_string = g_malloc (strlen (string) + 1);
char *j = new_string;
for (i = string; *i; i++) {
if (*i != '\n')
*(j++) = *i;
}
*j = 0;
e_text_model_insert_length(text->model, text->selection_start, new_string, j - new_string);
g_free (new_string);
return;
}
}
}
e_text_model_insert_length(text->model, text->selection_start, string, value);
#if 0
text->selection_start += value;
text->selection_end = text->selection_start;
#endif
}
}
static void
e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data)
{
EText *text = E_TEXT(data);
int sel_start, sel_end;
gboolean scroll = 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);
}
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);
sel_start = MIN(text->selection_start, text->selection_end);
sel_end = MAX(text->selection_start, text->selection_end);
sel_start = e_text_model_validate_position (text->model, sel_start);
if (sel_start != sel_end) {
e_text_supply_selection (text, command->time, GDK_SELECTION_PRIMARY,
(guchar *) text->text + sel_start, sel_end - sel_start);
} else if (text->timer) {
g_timer_reset(text->timer);
}
break;
case E_TEP_DELETE:
if (text->selection_end == text->selection_start) {
text->selection_end = _get_position(text, command);
}
_delete_selection(text);
if (text->timer) {
g_timer_reset(text->timer);
}
break;
case E_TEP_INSERT:
if (text->selection_end != text->selection_start) {
_delete_selection(text);
}
_insert(text, command->string, command->value);
if (text->timer) {
g_timer_reset(text->timer);
}
break;
case E_TEP_COPY:
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_supply_selection (text, command->time, clipboard_atom,
(guchar *) text->text + sel_start, sel_end - sel_start);
}
if (text->timer) {
g_timer_reset(text->timer);
}
scroll = FALSE;
break;
case E_TEP_PASTE:
e_text_get_selection (text, clipboard_atom, command->time);
if (text->timer) {
g_timer_reset(text->timer);
}
break;
case E_TEP_GET_SELECTION:
e_text_get_selection (text, GDK_SELECTION_PRIMARY, command->time);
break;
case E_TEP_ACTIVATE:
gtk_signal_emit (GTK_OBJECT (text), e_text_signals[E_TEXT_ACTIVATE]);
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:
gnome_canvas_item_grab (GNOME_CANVAS_ITEM(text),
GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK,
text->i_cursor,
command->time);
scroll = FALSE;
break;
case E_TEP_UNGRAB:
gnome_canvas_item_ungrab (GNOME_CANVAS_ITEM(text), command->time);
scroll = FALSE;
break;
case E_TEP_NOP:
scroll = FALSE;
break;
}
if (scroll && !text->button_down) {
int x;
int i;
struct line *lines = text->lines;
gdouble clip_width;
if ( !lines )
return;
for (lines = text->lines, i = 0; i < text->num_lines ; i++, lines ++) {
if ((lines->text - text->text) > text->selection_end) {
break;
}
}
lines --;
i --;
x = text_width_with_objects (text->model,
text->font, text->style,
lines->text,
text->selection_end - (lines->text - text->text));
if (x < text->xofs_edit) {
text->xofs_edit = x;
}
clip_width = text->clip_width;
if (clip_width >= 0 && text->draw_borders) {
clip_width -= 6;
if (clip_width < 0)
clip_width = 0;
}
if (2 + x - clip_width > text->xofs_edit) {
text->xofs_edit = 2 + x - clip_width;
}
if (e_font_height (text->font) * i < text->yofs_edit)
text->yofs_edit = e_font_height (text->font) * i;
if (e_font_height (text->font) * (i + 1) - (text->clip_height != -1 ? text->clip_height : text->height) > text->yofs_edit)
text->yofs_edit = e_font_height (text->font) * (i + 1) - (text->clip_height != -1 ? text->clip_height : text->height);
}
text->needs_redraw = 1;
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
}
static void
_invisible_destroy (GtkInvisible *invisible,
EText *text)
{
text->invisible = NULL;
}
static GtkWidget *
e_text_get_invisible(EText *text)
{
GtkWidget *invisible;
if (text->invisible) {
invisible = text->invisible;
} else {
static const GtkTargetEntry targets[] = {
{ "UTF8_STRING", 0, TARGET_UTF8_STRING },
{ "UTF-8", 0, TARGET_UTF8 },
{ "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
{ "STRING", 0, TARGET_STRING },
{ "TEXT", 0, TARGET_TEXT }
};
static const gint n_targets = sizeof(targets) / sizeof(targets[0]);
invisible = gtk_invisible_new();
text->invisible = invisible;
gtk_selection_add_targets (invisible,
GDK_SELECTION_PRIMARY,
targets, n_targets);
gtk_selection_add_targets (invisible,
clipboard_atom,
targets, n_targets);
gtk_signal_connect (GTK_OBJECT(invisible), "selection_get",
GTK_SIGNAL_FUNC (_selection_get),
text);
gtk_signal_connect (GTK_OBJECT(invisible), "selection_clear_event",
GTK_SIGNAL_FUNC (_selection_clear_event),
text);
gtk_signal_connect (GTK_OBJECT(invisible), "selection_received",
GTK_SIGNAL_FUNC (_selection_received),
text);
gtk_signal_connect (GTK_OBJECT(invisible), "destroy",
GTK_SIGNAL_FUNC (_invisible_destroy),
text);
}
return invisible;
}
static void
_selection_clear_event (GtkInvisible *invisible,
GdkEventSelection *event,
EText *text)
{
if (event->selection == GDK_SELECTION_PRIMARY) {
g_free (text->primary_selection);
text->primary_selection = NULL;
text->primary_length = 0;
text->has_selection = FALSE;
text->needs_redraw = 1;
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(text));
} else if (event->selection == clipboard_atom) {
g_free (text->clipboard_selection);
text->clipboard_selection = NULL;
text->clipboard_length = 0;
}
}
static void
_selection_get (GtkInvisible *invisible,
GtkSelectionData *selection_data,
guint info,
guint time_stamp,
EText *text)
{
char *selection_string;
int selection_length;
if (selection_data->selection == GDK_SELECTION_PRIMARY) {
selection_string = text->primary_selection;
selection_length = text->primary_length;
} else /* CLIPBOARD */ {
selection_string = text->clipboard_selection;
selection_length = text->clipboard_length;
}
if (selection_string != NULL) {
if (info == TARGET_UTF8_STRING) {
gtk_selection_data_set (selection_data,
gdk_atom_intern ("UTF8_STRING", FALSE), 8,
(const guchar *) selection_string,
selection_length);
} else if (info == TARGET_UTF8) {
gtk_selection_data_set (selection_data,
gdk_atom_intern ("UTF-8", FALSE), 8,
(const guchar *) selection_string,
selection_length);
} else if (info == TARGET_STRING || info == TARGET_TEXT || info == TARGET_COMPOUND_TEXT) {
gchar *localized_string;
localized_string = e_utf8_to_gtk_string (GTK_WIDGET (GNOME_CANVAS_ITEM(text)->canvas),
selection_string);
if (info == TARGET_STRING) {
gtk_selection_data_set (selection_data,
GDK_SELECTION_TYPE_STRING, 8,
(const guchar *) localized_string,
strlen (localized_string));
} else {
guchar *text;
GdkAtom encoding;
gint format;
gint new_length;
gdk_string_to_compound_text (localized_string,
&encoding, &format,
&text, &new_length);
gtk_selection_data_set (selection_data,
encoding, format,
text, new_length);
gdk_free_compound_text (text);
}
g_free (localized_string);
}
}
}
typedef struct {
guint32 time;
GdkAtom selection;
} SelectionAndTime;
static const char *formats[] = {"UTF8_STRING", "UTF-8", "STRING"};
#define E_STRING_ATOM 2
static const int format_count = sizeof (formats) / sizeof (formats[0]);
static GdkAtom atoms[sizeof (formats) / sizeof (formats[0])];
static int initialized = FALSE;
static inline void
init_atoms (void)
{
int type;
if (!initialized) {
for (type = 0; type < format_count; type++)
atoms[type] = gdk_atom_intern (formats[type], FALSE);
initialized = TRUE;
}
}
static void
e_text_request_paste (EText *text)
{
GdkAtom format_atom;
GtkWidget *invisible;
int type = text->last_type_request;
init_atoms ();
format_atom = GDK_NONE;
while (format_atom == GDK_NONE) {
type ++;
if (type >= format_count) {
if (text->queued_requests) {
guint32 *new_time = text->queued_requests->data;
text->queued_requests = g_list_remove_link (text->queued_requests, text->queued_requests);
text->last_time_request = *new_time;
g_free (new_time);
type = -1;
} else {
text->last_type_request = -1;
text->last_time_request = 0;
return;
}
}
format_atom = atoms [type];
}
/* And request the format target for the required selection */
invisible = e_text_get_invisible(text);
gtk_selection_convert(invisible,
text->last_selection_request,
format_atom,
text->last_time_request);
text->last_type_request = type;
return;
}
static void
_selection_received (GtkInvisible *invisible,
GtkSelectionData *selection_data,
guint time,
EText *text)
{
init_atoms ();
if (selection_data->length < 0) {
e_text_request_paste (text);
return;
} else if (selection_data->type == atoms[E_STRING_ATOM]) {
ETextEventProcessorCommand command;
char *string;
string = e_utf8_from_gtk_string_sized (GTK_WIDGET (GNOME_CANVAS_ITEM(text)->canvas),
selection_data->data,
selection_data->length);
command.action = E_TEP_INSERT;
command.position = E_TEP_SELECTION;
command.string = string;
command.value = strlen (string);
command.time = time;
e_text_command(text->tep, &command, text);
g_free (string);
} else {
ETextEventProcessorCommand command;
command.action = E_TEP_INSERT;
command.position = E_TEP_SELECTION;
command.string = selection_data->data;
command.value = selection_data->length;
command.time = time;
e_text_command(text->tep, &command, text);
}
text->last_type_request = -1;
if (text->queued_requests) {
SelectionAndTime *new_request = text->queued_requests->data;
text->queued_requests = g_list_remove_link (text->queued_requests, text->queued_requests);
text->last_time_request = new_request->time;
text->last_selection_request = new_request->selection;
g_free (new_request);
e_text_request_paste (text);
}
}
static void
e_text_get_selection(EText *text, GdkAtom selection, guint32 time)
{
if (text->last_type_request == -1) {
text->last_time_request = time;
text->last_selection_request = selection;
e_text_request_paste (text);
} else {
SelectionAndTime *new_request = g_new (SelectionAndTime, 1);
new_request->time = time;
new_request->selection = selection;
/* FIXME: Queue the selection request type as well. */
text->queued_requests = g_list_append (text->queued_requests, new_request);
}
}
static void
e_text_supply_selection (EText *text, guint time, GdkAtom selection, guchar *data, gint length)
{
gboolean successful;
GtkWidget *invisible;
invisible = e_text_get_invisible(text);
if (selection == GDK_SELECTION_PRIMARY ) {
g_free (text->primary_selection);
text->primary_selection = g_strndup(data, length);
text->primary_length = length;
} else if (selection == clipboard_atom) {
g_free (text->clipboard_selection);
text->clipboard_selection = g_strndup(data, length);
text->clipboard_length = length;
}
successful = gtk_selection_owner_set (invisible,
selection,
time);
if (selection == GDK_SELECTION_PRIMARY)
text->has_selection = successful;
}
#if 0
static void
e_text_real_copy_clipboard (EText *text)
{
guint32 time;
gint selection_start_pos;
gint selection_end_pos;
g_return_if_fail (text != NULL);
g_return_if_fail (E_IS_TEXT (text));
time = gtk_text_get_event_time (text);
selection_start_pos = MIN (text->selection_start, text->selection_end);
selection_end_pos = MAX (text->selection_start, text->selection_end);
if (selection_start_pos != selection_end_pos)
{
if (gtk_selection_owner_set (GTK_WIDGET (text->canvas),
clipboard_atom,
time))
text->clipboard_text = "";
}
}
static void
e_text_real_paste_clipboard (EText *text)
{
guint32 time;
g_return_if_fail (text != NULL);
g_return_if_fail (E_IS_TEXT (text));
time = e_text_get_event_time (text);
if (text->editable)
gtk_selection_convert (GTK_WIDGET(text->widget),
clipboard_atom,
gdk_atom_intern ("COMPOUND_TEXT", FALSE), time);
}
#endif
#if 0
/* Routines for sucking fonts from the X server */
static ETextSuckFont *
e_suck_font (GdkFont *font)
{
ETextSuckFont *suckfont;
int i;
int x, y;
char text[1];
int lbearing, rbearing, ch_width, ascent, descent;
GdkPixmap *pixmap;
GdkColor black, white;
GdkImage *image;
GdkGC *gc;
guchar *line;
int width, height;
int black_pixel, pixel;
if (!font)
return NULL;
suckfont = g_new (ETextSuckFont, 1);
height = font->ascent + font->descent;
x = 0;
for (i = 0; i < 256; i++) {
text[0] = i;
gdk_text_extents (font, text, 1,
&lbearing, &rbearing, &ch_width, &ascent, &descent);
suckfont->chars[i].left_sb = lbearing;
suckfont->chars[i].right_sb = ch_width - rbearing;
suckfont->chars[i].width = rbearing - lbearing;
suckfont->chars[i].ascent = ascent;
suckfont->chars[i].descent = descent;
suckfont->chars[i].bitmap_offset = x;
x += (ch_width + 31) & -32;
}
width = x;
suckfont->bitmap_width = width;
suckfont->bitmap_height = height;
suckfont->ascent = font->ascent;
pixmap = gdk_pixmap_new (NULL, suckfont->bitmap_width,
suckfont->bitmap_height, 1);
gc = gdk_gc_new (pixmap);
gdk_gc_set_font (gc, font);
black_pixel = BlackPixel (gdk_display, DefaultScreen (gdk_display));
black.pixel = black_pixel;
white.pixel = WhitePixel (gdk_display, DefaultScreen (gdk_display));
gdk_gc_set_foreground (gc, &white);
gdk_draw_rectangle (pixmap, gc, 1, 0, 0, width, height);
gdk_gc_set_foreground (gc, &black);
for (i = 0; i < 256; i++) {
text[0] = i;
gdk_draw_text (pixmap, font, gc,
suckfont->chars[i].bitmap_offset - suckfont->chars[i].left_sb,
font->ascent,
text, 1);
}
/* The handling of the image leaves me with distinct unease. But this
* is more or less copied out of gimp/app/text_tool.c, so it _ought_ to
* work. -RLL
*/
image = gdk_image_get (pixmap, 0, 0, width, height);
suckfont->bitmap = g_malloc0 ((width >> 3) * height);
line = suckfont->bitmap;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
pixel = gdk_image_get_pixel (image, x, y);
if (pixel == black_pixel)
line[x >> 3] |= 128 >> (x & 7);
}
line += width >> 3;
}
gdk_image_destroy (image);
/* free the pixmap */
gdk_pixmap_unref (pixmap);
/* free the gc */
gdk_gc_destroy (gc);
return suckfont;
}
static void
e_suck_font_free (ETextSuckFont *suckfont)
{
g_free (suckfont->bitmap);
g_free (suckfont);
}
#endif