/* -*- 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 * Jon Trowbridge * * 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 * * 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 #include "e-text.h" #include #include #include #include /* for BlackPixel */ #include #include #include #include #include #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 #include #include #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); /* 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; text->needs_redraw = 1; e_canvas_item_request_reflow (GNOME_CANVAS_ITEM(text)); gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (text)); gtk_signal_emit (GTK_OBJECT (text), e_text_signals[E_TEXT_CHANGED]); } 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; } if (line_count == 0) { if (split_cb) split_cb (0, text, strlen (text), 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: 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 next_word (EText *text, int start) { char *p; int length; length = strlen (text->text); if (start >= length) { return length; } else { p = g_utf8_next_char (text->text + start); while (p && *p && g_unichar_validate (g_utf8_get_char (p))) { gunichar unival = g_utf8_get_char (p); if (g_unichar_isspace (unival)) { return p - text->text; } else p = g_utf8_next_char (p); } } return p - text->text; } 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 = next_word (text, text->selection_end); 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 capitalize (EText *text, int start, int end, ETextEventProcessorCaps type) { gboolean first = TRUE; const char *p = text->text + start; const char *text_end = text->text + end; char *new_text = g_new0 (char, g_utf8_strlen (text->text + start, start - end) * 6); char *output = new_text; while (p && *p && p < text_end && g_unichar_validate (g_utf8_get_char (p))) { gunichar unival = g_utf8_get_char (p); gunichar newval = unival; switch (type) { case E_TEP_CAPS_UPPER: newval = g_unichar_toupper (unival); break; case E_TEP_CAPS_LOWER: newval = g_unichar_tolower (unival); break; case E_TEP_CAPS_TITLE: if (g_unichar_isalpha (unival)) { if (first) newval = g_unichar_totitle (unival); else newval = g_unichar_tolower (unival); first = FALSE; } else { first = TRUE; } break; } g_unichar_to_utf8 (newval, output); output = g_utf8_next_char (output); p = g_utf8_next_char (p); } *output = 0; e_text_model_delete (text->model, start, end - start); e_text_model_insert (text->model, start, new_text); g_free (new_text); } static void e_text_command(ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data) { EText *text = E_TEXT(data); int sel_start, sel_end; gboolean scroll = TRUE; 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_CAPS: if (text->selection_start == text->selection_end) { capitalize (text, text->selection_start, next_word (text, text->selection_start), command->value); } else { int selection_start = MIN (text->selection_start, text->selection_end); int selection_end = text->selection_start + text->selection_end - selection_start; /* Slightly faster than MAX */ capitalize (text, selection_start, selection_end, command->value); } 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