diff options
Diffstat (limited to 'widgets/text/e-text.c')
| -rw-r--r-- | widgets/text/e-text.c | 3405 |
1 files changed, 0 insertions, 3405 deletions
diff --git a/widgets/text/e-text.c b/widgets/text/e-text.c deleted file mode 100644 index f75c4ca8b9..0000000000 --- a/widgets/text/e-text.c +++ /dev/null @@ -1,3405 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * e-text.c - Text item for evolution. - * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) - * - * Authors: - * Chris Lahey <clahey@ximian.com> - * Jon Trowbridge <trow@ximian.com> - * - * A majority of code taken from: - * - * Text item type for GnomeCanvas widget - * - * GnomeCanvas is basically a port of the Tk toolkit's most excellent - * canvas widget. Tk is copyrighted by the Regents of the University - * of California, Sun Microsystems, and other parties. - * - * Copyright (C) 1998 The Free Software Foundation - * - * Author: Federico Mena <federico@nuclecu.unam.mx> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * 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., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <math.h> -#include <ctype.h> -#include <string.h> - -#include <gdk/gdkkeysyms.h> -#include <gtk/gtk.h> - -#include "gal-a11y-e-text.h" -#include "misc/e-canvas.h" -#include "misc/e-canvas-utils.h" -#include "e-util/e-unicode.h" -#include <glib/gi18n.h> -#include "e-util/e-text-event-processor-emacs-like.h" -#include "e-util/e-util.h" - -#include "e-text.h" - -G_DEFINE_TYPE (EText, e_text, GNOME_TYPE_CANVAS_ITEM) - -enum { - E_TEXT_CHANGED, - E_TEXT_ACTIVATE, - E_TEXT_KEYPRESS, - E_TEXT_POPULATE_POPUP, - E_TEXT_LAST_SIGNAL -}; - -static GQuark e_text_signals[E_TEXT_LAST_SIGNAL] = { 0 }; - -/* Object argument IDs */ -enum { - PROP_0, - PROP_MODEL, - PROP_EVENT_PROCESSOR, - PROP_TEXT, - PROP_BOLD, - PROP_STRIKEOUT, - PROP_ANCHOR, - PROP_JUSTIFICATION, - PROP_CLIP_WIDTH, - PROP_CLIP_HEIGHT, - PROP_CLIP, - PROP_FILL_CLIP_RECTANGLE, - PROP_X_OFFSET, - PROP_Y_OFFSET, - PROP_FILL_COLOR, - PROP_FILL_COLOR_GDK, - PROP_FILL_COLOR_RGBA, - PROP_TEXT_WIDTH, - PROP_TEXT_HEIGHT, - PROP_EDITABLE, - PROP_USE_ELLIPSIS, - PROP_ELLIPSIS, - PROP_LINE_WRAP, - PROP_BREAK_CHARACTERS, - PROP_MAX_LINES, - PROP_WIDTH, - PROP_HEIGHT, - PROP_ALLOW_NEWLINES, - PROP_CURSOR_POS, - PROP_IM_CONTEXT, - PROP_HANDLE_POPUP -}; - -static void e_text_command (ETextEventProcessor *tep, - ETextEventProcessorCommand *command, - gpointer data); - -static void e_text_text_model_changed (ETextModel *model, - EText *text); -static void e_text_text_model_reposition (ETextModel *model, - ETextModelReposFn fn, - gpointer repos_data, - gpointer data); - -static void _get_tep (EText *text); - -static void calc_height (EText *text); - -static gboolean show_pango_rectangle (EText *text, PangoRectangle rect); - -static void e_text_do_popup (EText *text, - GdkEvent *event_button, - gint position); - -static void e_text_update_primary_selection (EText *text); -static void e_text_paste (EText *text, GdkAtom selection); -static void e_text_insert (EText *text, const gchar *string); -static void e_text_reset_im_context (EText *text); - -static void reset_layout_attrs (EText *text); - -/* IM Context Callbacks */ -static void e_text_commit_cb (GtkIMContext *context, - const gchar *str, - EText *text); -static void e_text_preedit_changed_cb (GtkIMContext *context, - EText *text); -static gboolean e_text_retrieve_surrounding_cb (GtkIMContext *context, - EText *text); -static gboolean e_text_delete_surrounding_cb (GtkIMContext *context, - gint offset, - gint n_chars, - EText *text); - -static GdkAtom clipboard_atom = GDK_NONE; - -static void -disconnect_im_context (EText *text) -{ - if (!text || !text->im_context) - return; - - g_signal_handlers_disconnect_matched ( - text->im_context, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, text); - text->im_context_signals_registered = FALSE; -} - -/* Dispose handler for the text item */ -static void -e_text_dispose (GObject *object) -{ - EText *text; - - g_return_if_fail (object != NULL); - g_return_if_fail (E_IS_TEXT (object)); - - text = E_TEXT (object); - - if (text->model_changed_signal_id) - g_signal_handler_disconnect ( - text->model, - text->model_changed_signal_id); - text->model_changed_signal_id = 0; - - if (text->model_repos_signal_id) - g_signal_handler_disconnect ( - text->model, - text->model_repos_signal_id); - text->model_repos_signal_id = 0; - - if (text->model) - g_object_unref (text->model); - text->model = NULL; - - if (text->tep_command_id) - g_signal_handler_disconnect ( - text->tep, - text->tep_command_id); - text->tep_command_id = 0; - - if (text->tep) - g_object_unref (text->tep); - text->tep = NULL; - - g_free (text->revert); - text->revert = NULL; - - if (text->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->dbl_timeout) { - g_source_remove (text->dbl_timeout); - text->dbl_timeout = 0; - } - - if (text->tpl_timeout) { - g_source_remove (text->tpl_timeout); - text->tpl_timeout = 0; - } - - if (text->layout) { - g_object_unref (text->layout); - text->layout = NULL; - } - - if (text->im_context) { - disconnect_im_context (text); - g_object_unref (text->im_context); - text->im_context = NULL; - } - - if (text->font_desc) { - pango_font_description_free (text->font_desc); - text->font_desc = NULL; - } - - /* Chain up to parent's dispose() method. */ - G_OBJECT_CLASS (e_text_parent_class)->dispose (object); -} - -static void -insert_preedit_text (EText *text) -{ - PangoAttrList *attrs = NULL; - PangoAttrList *preedit_attrs = NULL; - gchar *preedit_string = NULL; - GString *tmp_string = g_string_new (NULL); - gint length = 0, cpos = 0; - gboolean new_attrs = FALSE; - - if (text->layout == NULL || !GTK_IS_IM_CONTEXT (text->im_context)) - return; - - text->text = e_text_model_get_text (text->model); - length = strlen (text->text); - - g_string_prepend_len (tmp_string, text->text,length); - - /* we came into this function only when text->preedit_len was not 0 - * so we can safely fetch the preedit string */ - gtk_im_context_get_preedit_string ( - text->im_context, &preedit_string, &preedit_attrs, NULL); - - if (preedit_string && g_utf8_validate (preedit_string, -1, NULL)) { - - text->preedit_len = strlen (preedit_string); - - cpos = g_utf8_offset_to_pointer ( - text->text, text->selection_start) - text->text; - - g_string_insert (tmp_string, cpos, preedit_string); - - reset_layout_attrs (text); - - attrs = pango_layout_get_attributes (text->layout); - if (!attrs) { - attrs = pango_attr_list_new (); - new_attrs = TRUE; - } - - pango_layout_set_text (text->layout, tmp_string->str, tmp_string->len); - - pango_attr_list_splice (attrs, preedit_attrs, cpos, text->preedit_len); - - if (new_attrs) { - pango_layout_set_attributes (text->layout, attrs); - pango_attr_list_unref (attrs); - } - } else - text->preedit_len = 0; - - if (preedit_string) - g_free (preedit_string); - if (preedit_attrs) - pango_attr_list_unref (preedit_attrs); - if (tmp_string) - g_string_free (tmp_string, TRUE); -} - -static void -reset_layout_attrs (EText *text) -{ - PangoAttrList *attrs = NULL; - gint object_count; - - if (text->layout == NULL) - return; - - object_count = e_text_model_object_count (text->model); - - if (text->bold || text->strikeout || object_count > 0) { - gint length = 0; - gint i; - - attrs = pango_attr_list_new (); - - for (i = 0; i < object_count; i++) { - gint start_pos, end_pos; - PangoAttribute *attr; - - attr = pango_attr_underline_new (PANGO_UNDERLINE_SINGLE); - - e_text_model_get_nth_object_bounds ( - text->model, i, &start_pos, &end_pos); - - attr->start_index = g_utf8_offset_to_pointer ( - text->text, start_pos) - text->text; - attr->end_index = g_utf8_offset_to_pointer ( - text->text, end_pos) - text->text; - - pango_attr_list_insert (attrs, attr); - } - - if (text->bold || text->strikeout) - length = strlen (text->text); - - if (text->bold) { - PangoAttribute *attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD); - attr->start_index = 0; - attr->end_index = length; - - pango_attr_list_insert_before (attrs, attr); - } - if (text->strikeout) { - PangoAttribute *attr = pango_attr_strikethrough_new (TRUE); - attr->start_index = 0; - attr->end_index = length; - - pango_attr_list_insert_before (attrs, attr); - } - } - - pango_layout_set_attributes (text->layout, attrs); - - if (attrs) - pango_attr_list_unref (attrs); - - calc_height (text); -} - -static void -create_layout (EText *text) -{ - GnomeCanvasItem *item = GNOME_CANVAS_ITEM (text); - - if (text->layout) - return; - - text->layout = gtk_widget_create_pango_layout ( - GTK_WIDGET (item->canvas), text->text); - if (text->line_wrap) - pango_layout_set_width ( - text->layout, text->clip_width < 0 - ? -1 : text->clip_width * PANGO_SCALE); - reset_layout_attrs (text); -} - -static void -reset_layout (EText *text) -{ - GnomeCanvasItem *item = GNOME_CANVAS_ITEM (text); - - if (text->layout == NULL) { - create_layout (text); - } - else { - GtkStyle *style; - - style = gtk_widget_get_style (GTK_WIDGET (item->canvas)); - - if (text->font_desc) { - pango_font_description_free (text->font_desc); - } - text->font_desc = pango_font_description_new (); - if (!pango_font_description_get_size_is_absolute (style->font_desc)) - pango_font_description_set_size ( - text->font_desc, - pango_font_description_get_size (style->font_desc)); - else - pango_font_description_set_absolute_size ( - text->font_desc, - pango_font_description_get_size (style->font_desc)); - pango_font_description_set_family ( - text->font_desc, - pango_font_description_get_family (style->font_desc)); - pango_layout_set_font_description (text->layout, text->font_desc); - - pango_layout_set_text (text->layout, text->text, -1); - reset_layout_attrs (text); - } - - if (!text->button_down) { - PangoRectangle strong_pos, weak_pos; - gchar *offs = g_utf8_offset_to_pointer (text->text, text->selection_start); - - pango_layout_get_cursor_pos ( - text->layout, offs - text->text, - &strong_pos, &weak_pos); - - if (strong_pos.x != weak_pos.x || - strong_pos.y != weak_pos.y || - strong_pos.width != weak_pos.width || - strong_pos.height != weak_pos.height) - show_pango_rectangle (text, weak_pos); - - show_pango_rectangle (text, strong_pos); - } -} - -static void -e_text_text_model_changed (ETextModel *model, - EText *text) -{ - gint model_len = e_text_model_get_text_length (model); - text->text = e_text_model_get_text (model); - - /* Make sure our selection doesn't extend past the bounds of our text. */ - text->selection_start = CLAMP (text->selection_start, 0, model_len); - text->selection_end = CLAMP (text->selection_end, 0, model_len); - - text->needs_reset_layout = 1; - text->needs_split_into_lines = 1; - text->needs_redraw = 1; - e_canvas_item_request_reflow (GNOME_CANVAS_ITEM (text)); - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (text)); - - g_signal_emit (text, e_text_signals[E_TEXT_CHANGED], 0); -} - -static void -e_text_text_model_reposition (ETextModel *model, - ETextModelReposFn fn, - gpointer repos_data, - gpointer user_data) -{ - EText *text = E_TEXT (user_data); - gint model_len = e_text_model_get_text_length (model); - - text->selection_start = fn (text->selection_start, repos_data); - text->selection_end = fn (text->selection_end, repos_data); - - /* Our repos function should make sure we don't overrun the buffer, but it never - * hurts to be paranoid. */ - text->selection_start = CLAMP (text->selection_start, 0, model_len); - text->selection_end = CLAMP (text->selection_end, 0, model_len); - - if (text->selection_start > text->selection_end) { - gint tmp = text->selection_start; - text->selection_start = text->selection_end; - text->selection_end = tmp; - } -} - -static void -get_bounds (EText *text, - gdouble *px1, - gdouble *py1, - gdouble *px2, - gdouble *py2) -{ - GnomeCanvasItem *item; - gdouble wx, wy, clip_width, clip_height; - - item = GNOME_CANVAS_ITEM (text); - - /* Get canvas pixel coordinates for text position */ - - wx = 0; - wy = 0; - gnome_canvas_item_i2w (item, &wx, &wy); - gnome_canvas_w2c (item->canvas, wx, wy, &text->cx, &text->cy); - gnome_canvas_w2c (item->canvas, wx, wy, &text->clip_cx, &text->clip_cy); - - if (text->clip_width < 0) - clip_width = text->width; - else - clip_width = text->clip_width; - - if (text->clip_height < 0) - clip_height = text->height; - else - clip_height = text->clip_height; - - /* Get canvas pixel coordinates for clip rectangle position */ - text->clip_cwidth = clip_width; - text->clip_cheight = clip_height; - - text->text_cx = text->cx; - text->text_cy = text->cy; - - /* Bounds */ - - if (text->clip) { - *px1 = text->clip_cx; - *py1 = text->clip_cy; - *px2 = text->clip_cx + text->clip_cwidth; - *py2 = text->clip_cy + text->clip_cheight; - } else { - *px1 = text->cx; - *py1 = text->cy; - *px2 = text->cx + text->width; - *py2 = text->cy + text->height; - } -} - -static void -calc_height (EText *text) -{ - GnomeCanvasItem *item; - gint old_height; - gint old_width; - gint width = 0; - gint height = 0; - - item = GNOME_CANVAS_ITEM (text); - - /* Calculate text dimensions */ - - old_height = text->height; - old_width = text->width; - - if (text->layout) - pango_layout_get_pixel_size (text->layout, &width, &height); - - text->height = height; - text->width = width; - - if (old_height != text->height || old_width != text->width) - e_canvas_item_request_parent_reflow (item); -} - -static void -calc_ellipsis (EText *text) -{ -/* FIXME: a pango layout per calc_ellipsis sucks */ - gint width; - PangoLayout *layout = gtk_widget_create_pango_layout ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), - text->ellipsis ? text->ellipsis : "..."); - pango_layout_get_size (layout, &width, NULL); - - text->ellipsis_width = width; - - g_object_unref (layout); -} - -static void -split_into_lines (EText *text) -{ - text->num_lines = pango_layout_get_line_count (text->layout); -} - -/* Set_arg handler for the text item */ -static void -e_text_set_property (GObject *object, - guint property_id, - const GValue *value, - GParamSpec *pspec) -{ - GnomeCanvasItem *item; - EText *text; - GdkColor color = { 0, 0, 0, 0, }; - GdkColor *pcolor; - - gboolean needs_update = 0; - gboolean needs_reflow = 0; - - item = GNOME_CANVAS_ITEM (object); - text = E_TEXT (object); - - switch (property_id) { - case PROP_MODEL: - - if (text->model_changed_signal_id) - g_signal_handler_disconnect ( - text->model, - text->model_changed_signal_id); - - if (text->model_repos_signal_id) - g_signal_handler_disconnect ( - text->model, - text->model_repos_signal_id); - - g_object_unref (text->model); - text->model = E_TEXT_MODEL (g_value_get_object (value)); - g_object_ref (text->model); - - text->model_changed_signal_id = g_signal_connect ( - text->model, "changed", - G_CALLBACK (e_text_text_model_changed), text); - - text->model_repos_signal_id = g_signal_connect ( - text->model, "reposition", - G_CALLBACK (e_text_text_model_reposition), text); - - text->text = e_text_model_get_text (text->model); - g_signal_emit (text, e_text_signals[E_TEXT_CHANGED], 0); - - text->needs_split_into_lines = 1; - needs_reflow = 1; - break; - - case PROP_EVENT_PROCESSOR: - if (text->tep && text->tep_command_id) - g_signal_handler_disconnect ( - text->tep, - text->tep_command_id); - if (text->tep) { - g_object_unref (text->tep); - } - text->tep = E_TEXT_EVENT_PROCESSOR (g_value_get_object (value)); - g_object_ref (text->tep); - - text->tep_command_id = g_signal_connect ( - text->tep, "command", - G_CALLBACK (e_text_command), text); - - if (!text->allow_newlines) - g_object_set ( - text->tep, - "allow_newlines", FALSE, - NULL); - break; - - case PROP_TEXT: - e_text_model_set_text (text->model, g_value_get_string (value)); - break; - - case PROP_BOLD: - text->bold = g_value_get_boolean (value); - - text->needs_redraw = 1; - text->needs_recalc_bounds = 1; - if (text->line_wrap) - text->needs_split_into_lines = 1; - else { - text->needs_calc_height = 1; - } - needs_update = 1; - needs_reflow = 1; - break; - - case PROP_STRIKEOUT: - text->strikeout = g_value_get_boolean (value); - text->needs_redraw = 1; - needs_update = 1; - break; - - case PROP_JUSTIFICATION: - text->justification = g_value_get_enum (value); - text->needs_redraw = 1; - needs_update = 1; - break; - - case PROP_CLIP_WIDTH: - text->clip_width = fabs (g_value_get_double (value)); - calc_ellipsis (text); - if (text->line_wrap) { - if (text->layout) - pango_layout_set_width ( - text->layout, text->clip_width < 0 - ? -1 : text->clip_width * PANGO_SCALE); - text->needs_split_into_lines = 1; - } else { - text->needs_calc_height = 1; - } - needs_reflow = 1; - break; - - case PROP_CLIP_HEIGHT: - text->clip_height = fabs (g_value_get_double (value)); - text->needs_recalc_bounds = 1; - /* toshok: kind of a hack - set needs_reset_layout - * here so when something about the style/them - * changes, we redraw the text at the proper size/with - * the proper font. */ - text->needs_reset_layout = 1; - needs_reflow = 1; - break; - - case PROP_CLIP: - text->clip = g_value_get_boolean (value); - calc_ellipsis (text); - if (text->line_wrap) - text->needs_split_into_lines = 1; - else { - text->needs_calc_height = 1; - } - needs_reflow = 1; - break; - - case PROP_FILL_CLIP_RECTANGLE: - text->fill_clip_rectangle = g_value_get_boolean (value); - needs_update = 1; - break; - - case PROP_X_OFFSET: - text->xofs = g_value_get_double (value); - text->needs_recalc_bounds = 1; - needs_update = 1; - break; - - case PROP_Y_OFFSET: - text->yofs = g_value_get_double (value); - text->needs_recalc_bounds = 1; - needs_update = 1; - break; - - case PROP_FILL_COLOR: - if (g_value_get_string (value)) - gdk_color_parse (g_value_get_string (value), &color); - - text->rgba = ((color.red & 0xff00) << 16 | - (color.green & 0xff00) << 8 | - (color.blue & 0xff00) | - 0xff); - text->rgba_set = TRUE; - text->needs_redraw = 1; - needs_update = 1; - break; - - case PROP_FILL_COLOR_GDK: - pcolor = g_value_get_boxed (value); - if (pcolor) { - color = *pcolor; - } - - text->rgba = ((color.red & 0xff00) << 16 | - (color.green & 0xff00) << 8 | - (color.blue & 0xff00) | - 0xff); - text->rgba_set = TRUE; - text->needs_redraw = 1; - needs_update = 1; - break; - - case PROP_FILL_COLOR_RGBA: - text->rgba = g_value_get_uint (value); - color.red = ((text->rgba >> 24) & 0xff) * 0x101; - color.green = ((text->rgba >> 16) & 0xff) * 0x101; - color.blue = ((text->rgba >> 8) & 0xff) * 0x101; - text->rgba_set = TRUE; - text->needs_redraw = 1; - needs_update = 1; - break; - - case PROP_EDITABLE: - text->editable = g_value_get_boolean (value); - text->needs_redraw = 1; - needs_update = 1; - break; - - case PROP_USE_ELLIPSIS: - text->use_ellipsis = g_value_get_boolean (value); - needs_reflow = 1; - break; - - case PROP_ELLIPSIS: - if (text->ellipsis) - g_free (text->ellipsis); - - text->ellipsis = g_strdup (g_value_get_string (value)); - calc_ellipsis (text); - needs_reflow = 1; - break; - - case PROP_LINE_WRAP: - text->line_wrap = g_value_get_boolean (value); - if (text->line_wrap) { - if (text->layout) { - pango_layout_set_width ( - text->layout, text->width < 0 - ? -1 : text->width * PANGO_SCALE); - } - } - text->needs_split_into_lines = 1; - needs_reflow = 1; - break; - - case PROP_BREAK_CHARACTERS: - if (text->break_characters) { - g_free (text->break_characters); - text->break_characters = NULL; - } - if (g_value_get_string (value)) - text->break_characters = g_strdup (g_value_get_string (value)); - text->needs_split_into_lines = 1; - needs_reflow = 1; - break; - - case PROP_MAX_LINES: - text->max_lines = g_value_get_int (value); - text->needs_split_into_lines = 1; - needs_reflow = 1; - break; - - case PROP_WIDTH: - text->clip_width = fabs (g_value_get_double (value)); - calc_ellipsis (text); - if (text->line_wrap) { - if (text->layout) { - pango_layout_set_width ( - text->layout, text->width < 0 ? - -1 : text->width * PANGO_SCALE); - } - text->needs_split_into_lines = 1; - } - else { - text->needs_calc_height = 1; - } - needs_reflow = 1; - break; - - case PROP_ALLOW_NEWLINES: - text->allow_newlines = g_value_get_boolean (value); - _get_tep (text); - g_object_set ( - text->tep, - "allow_newlines", g_value_get_boolean (value), - NULL); - break; - - case PROP_CURSOR_POS: { - ETextEventProcessorCommand command; - - command.action = E_TEP_MOVE; - command.position = E_TEP_VALUE; - command.value = g_value_get_int (value); - command.time = GDK_CURRENT_TIME; - e_text_command (text->tep, &command, text); - break; - } - - case PROP_IM_CONTEXT: - if (text->im_context) { - disconnect_im_context (text); - g_object_unref (text->im_context); - } - - text->im_context = g_value_get_object (value); - if (text->im_context) - g_object_ref (text->im_context); - - text->need_im_reset = TRUE; - break; - - case PROP_HANDLE_POPUP: - text->handle_popup = g_value_get_boolean (value); - break; - - default: - return; - } - - if (needs_reflow) - e_canvas_item_request_reflow (item); - if (needs_update) - gnome_canvas_item_request_update (item); -} - -/* Get_arg handler for the text item */ -static void -e_text_get_property (GObject *object, - guint property_id, - GValue *value, - GParamSpec *pspec) -{ - EText *text; - - text = E_TEXT (object); - - switch (property_id) { - case PROP_MODEL: - g_value_set_object (value, text->model); - break; - - case PROP_EVENT_PROCESSOR: - _get_tep (text); - g_value_set_object (value, text->tep); - break; - - case PROP_TEXT: - g_value_set_string (value, text->text); - break; - - case PROP_BOLD: - g_value_set_boolean (value, text->bold); - break; - - case PROP_STRIKEOUT: - g_value_set_boolean (value, text->strikeout); - break; - - case PROP_JUSTIFICATION: - g_value_set_enum (value, text->justification); - break; - - case PROP_CLIP_WIDTH: - g_value_set_double (value, text->clip_width); - break; - - case PROP_CLIP_HEIGHT: - g_value_set_double (value, text->clip_height); - break; - - case PROP_CLIP: - g_value_set_boolean (value, text->clip); - break; - - case PROP_FILL_CLIP_RECTANGLE: - g_value_set_boolean (value, text->fill_clip_rectangle); - break; - - case PROP_X_OFFSET: - g_value_set_double (value, text->xofs); - break; - - case PROP_Y_OFFSET: - g_value_set_double (value, text->yofs); - break; - - case PROP_FILL_COLOR_RGBA: - g_value_set_uint (value, text->rgba); - break; - - case PROP_TEXT_WIDTH: - g_value_set_double (value, text->width); - break; - - case PROP_TEXT_HEIGHT: - g_value_set_double (value, text->height); - break; - - case PROP_EDITABLE: - g_value_set_boolean (value, text->editable); - break; - - case PROP_USE_ELLIPSIS: - g_value_set_boolean (value, text->use_ellipsis); - break; - - case PROP_ELLIPSIS: - g_value_set_string (value, text->ellipsis); - break; - - case PROP_LINE_WRAP: - g_value_set_boolean (value, text->line_wrap); - break; - - case PROP_BREAK_CHARACTERS: - g_value_set_string (value, text->break_characters); - break; - - case PROP_MAX_LINES: - g_value_set_int (value, text->max_lines); - break; - - case PROP_WIDTH: - g_value_set_double (value, text->clip_width); - break; - - case PROP_HEIGHT: - g_value_set_double ( - value, text->clip && - text->clip_height != -1 ? - text->clip_height : text->height); - break; - - case PROP_ALLOW_NEWLINES: - g_value_set_boolean (value, text->allow_newlines); - break; - - case PROP_CURSOR_POS: - g_value_set_int (value, text->selection_start); - break; - - case PROP_IM_CONTEXT: - g_value_set_object (value, text->im_context); - break; - - case PROP_HANDLE_POPUP: - g_value_set_boolean (value, text->handle_popup); - break; - - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); - break; - } -} - -/* Update handler for the text item */ -static void -e_text_reflow (GnomeCanvasItem *item, - gint flags) -{ - EText *text; - - text = E_TEXT (item); - - if (text->needs_reset_layout) { - reset_layout (text); - text->needs_reset_layout = 0; - text->needs_calc_height = 1; - } - - if (text->needs_split_into_lines) { - split_into_lines (text); - - text->needs_split_into_lines = 0; - text->needs_calc_height = 1; - } - - if (text->needs_calc_height) { - calc_height (text); - gnome_canvas_item_request_update (item); - text->needs_calc_height = 0; - text->needs_recalc_bounds = 1; - } -} - -/* Update handler for the text item */ -static void -e_text_update (GnomeCanvasItem *item, - const cairo_matrix_t *i2c, - gint flags) -{ - EText *text; - gdouble x1, y1, x2, y2; - - text = E_TEXT (item); - - if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->update) - GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->update ( - item, i2c, flags); - - if (text->needs_recalc_bounds - || (flags & GNOME_CANVAS_UPDATE_AFFINE)) { - get_bounds (text, &x1, &y1, &x2, &y2); - if (item->x1 != x1 || - item->x2 != x2 || - item->y1 != y1 || - item->y2 != y2) { - gnome_canvas_request_redraw ( - item->canvas, item->x1, item->y1, - item->x2, item->y2); - item->x1 = x1; - item->y1 = y1; - item->x2 = x2; - item->y2 = y2; - text->needs_redraw = 1; - item->canvas->need_repick = TRUE; - } - if (!text->fill_clip_rectangle) - item->canvas->need_repick = TRUE; - text->needs_recalc_bounds = 0; - } - if (text->needs_redraw) { - gnome_canvas_request_redraw ( - item->canvas, item->x1, item->y1, item->x2, item->y2); - text->needs_redraw = 0; - } -} - -/* Realize handler for the text item */ -static void -e_text_realize (GnomeCanvasItem *item) -{ - EText *text; - - text = E_TEXT (item); - - if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->realize) - (* GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->realize) (item); - - create_layout (text); - - text->i_cursor = gdk_cursor_new (GDK_XTERM); - text->default_cursor = gdk_cursor_new (GDK_LEFT_PTR); -} - -/* Unrealize handler for the text item */ -static void -e_text_unrealize (GnomeCanvasItem *item) -{ - EText *text; - - text = E_TEXT (item); - - g_object_unref (text->i_cursor); - text->i_cursor = NULL; - g_object_unref (text->default_cursor); - text->default_cursor = NULL; - - if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->unrealize) - (* GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->unrealize) (item); -} - -static void -_get_tep (EText *text) -{ - if (!text->tep) { - text->tep = e_text_event_processor_emacs_like_new (); - - text->tep_command_id = g_signal_connect ( - text->tep, "command", - G_CALLBACK (e_text_command), text); - } -} - -static void -draw_pango_rectangle (cairo_t *cr, - gint x1, - gint y1, - PangoRectangle rect) -{ - gint width = rect.width / PANGO_SCALE; - gint height = rect.height / PANGO_SCALE; - - if (width <= 0) - width = 1; - if (height <= 0) - height = 1; - - cairo_rectangle ( - cr, x1 + rect.x / PANGO_SCALE, - y1 + rect.y / PANGO_SCALE, width, height); - cairo_fill (cr); -} - -static gboolean -show_pango_rectangle (EText *text, - PangoRectangle rect) -{ - gint x1 = rect.x / PANGO_SCALE; - gint x2 = (rect.x + rect.width) / PANGO_SCALE; - - gint y1 = rect.y / PANGO_SCALE; - gint y2 = (rect.y + rect.height) / PANGO_SCALE; - - gint new_xofs_edit = text->xofs_edit; - gint new_yofs_edit = text->yofs_edit; - - gint clip_width, clip_height; - - clip_width = text->clip_width; - clip_height = text->clip_height; - - if (x1 < new_xofs_edit) - new_xofs_edit = x1; - - if (y1 < new_yofs_edit) - new_yofs_edit = y1; - - if (clip_width >= 0) { - if (2 + x2 - clip_width > new_xofs_edit) - new_xofs_edit = 2 + x2 - clip_width; - } else { - new_xofs_edit = 0; - } - - if (clip_height >= 0) { - if (y2 - clip_height > new_yofs_edit) - new_yofs_edit = y2 - clip_height; - } else { - new_yofs_edit = 0; - } - - if (new_xofs_edit < 0) - new_xofs_edit = 0; - if (new_yofs_edit < 0) - new_yofs_edit = 0; - - if (new_xofs_edit != text->xofs_edit || - new_yofs_edit != text->yofs_edit) { - text->xofs_edit = new_xofs_edit; - text->yofs_edit = new_yofs_edit; - return TRUE; - } - - return FALSE; -} - -/* Draw handler for the text item */ -static void -e_text_draw (GnomeCanvasItem *item, - cairo_t *cr, - gint x, - gint y, - gint width, - gint height) -{ - EText *text; - gint xpos, ypos; - GnomeCanvas *canvas; - GtkWidget *widget; - GtkStyle *style; - GtkStateType state; - - text = E_TEXT (item); - canvas = GNOME_CANVAS_ITEM (text)->canvas; - widget = GTK_WIDGET (canvas); - state = gtk_widget_get_state (widget); - style = gtk_widget_get_style (widget); - - cairo_save (cr); - - if (!text->rgba_set) { - gdk_cairo_set_source_color (cr, &style->fg[state]); - } else { - cairo_set_source_rgba ( - cr, - ((text->rgba >> 24) & 0xff) / 255.0, - ((text->rgba >> 16) & 0xff) / 255.0, - ((text->rgba >> 8) & 0xff) / 255.0, - ( text->rgba & 0xff) / 255.0); - } - - /* Insert preedit text only when im_context signals are connected & - * text->preedit_len is not zero */ - if (text->im_context_signals_registered && text->preedit_len) - insert_preedit_text (text); - - /* Need to reset the layout to cleanly clear the preedit buffer when - * typing in CJK & using backspace on the preedit */ - if (!text->preedit_len) - reset_layout (text); - - if (!pango_layout_get_text (text->layout)) { - cairo_restore (cr); - return; - } - - xpos = text->text_cx; - ypos = text->text_cy; - - xpos = xpos - x + text->xofs; - ypos = ypos - y + text->yofs; - - cairo_save (cr); - - if (text->clip) { - cairo_rectangle ( - cr, xpos, ypos, - text->clip_cwidth - text->xofs, - text->clip_cheight - text->yofs); - cairo_clip (cr); - } - - if (text->editing) { - xpos -= text->xofs_edit; - ypos -= text->yofs_edit; - } - - cairo_move_to (cr, xpos, ypos); - pango_cairo_show_layout (cr, text->layout); - - if (text->editing) { - if (text->selection_start != text->selection_end) { - cairo_region_t *clip_region = cairo_region_create (); - gint indices[2]; - GtkStateType state; - - state = GTK_STATE_ACTIVE; - - indices[0] = MIN ( - text->selection_start, - text->selection_end); - indices[1] = MAX ( - text->selection_start, - text->selection_end); - - /* convert these into byte indices */ - indices[0] = g_utf8_offset_to_pointer ( - text->text, indices[0]) - text->text; - indices[1] = g_utf8_offset_to_pointer ( - text->text, indices[1]) - text->text; - - clip_region = gdk_pango_layout_get_clip_region ( - text->layout, xpos, ypos, indices, 1); - gdk_cairo_region (cr, clip_region); - cairo_clip (cr); - cairo_region_destroy (clip_region); - - gdk_cairo_set_source_color (cr, &style->base[state]); - cairo_paint (cr); - - gdk_cairo_set_source_color (cr, &style->text[state]); - cairo_move_to (cr, xpos, ypos); - pango_cairo_show_layout (cr, text->layout); - } else { - if (text->show_cursor) { - PangoRectangle strong_pos, weak_pos; - gchar *offs; - - offs = g_utf8_offset_to_pointer ( - text->text, text->selection_start); - - pango_layout_get_cursor_pos ( - text->layout, offs - text->text + - text->preedit_len, &strong_pos, - &weak_pos); - draw_pango_rectangle (cr, xpos, ypos, strong_pos); - if (strong_pos.x != weak_pos.x || - strong_pos.y != weak_pos.y || - strong_pos.width != weak_pos.width || - strong_pos.height != weak_pos.height) - draw_pango_rectangle (cr, xpos, ypos, weak_pos); - } - } - } - - cairo_restore (cr); - cairo_restore (cr); -} - -/* Point handler for the text item */ -static GnomeCanvasItem * -e_text_point (GnomeCanvasItem *item, - gdouble x, - gdouble y, - gint cx, - gint cy) -{ - EText *text; - gdouble clip_width; - gdouble clip_height; - - text = E_TEXT (item); - - /* The idea is to build bounding rectangles for each of the lines of - * text (clipped by the clipping rectangle, if it is activated) and see - * whether the point is inside any of these. If it is, we are done. - * Otherwise, calculate the distance to the nearest rectangle. - */ - - if (text->clip_width < 0) - clip_width = text->width; - else - clip_width = text->clip_width; - - if (text->clip_height < 0) - clip_height = text->height; - else - clip_height = text->clip_height; - - if (cx < text->clip_cx || - cx > text->clip_cx + clip_width || - cy < text->clip_cy || - cy > text->clip_cy + clip_height) - return NULL; - - if (text->fill_clip_rectangle || !text->text || !*text->text) - return item; - - cx -= text->cx; - - if (pango_layout_xy_to_index (text->layout, cx, cy, NULL, NULL)) - return item; - - return NULL; -} - -/* Bounds handler for the text item */ -static void -e_text_bounds (GnomeCanvasItem *item, - gdouble *x1, - gdouble *y1, - gdouble *x2, - gdouble *y2) -{ - EText *text; - gdouble width, height; - - text = E_TEXT (item); - - *x1 = 0; - *y1 = 0; - - width = text->width; - height = text->height; - - if (text->clip) { - if (text->clip_width >= 0) - width = text->clip_width; - if (text->clip_height >= 0) - height = text->clip_height; - } - - *x2 = *x1 + width; - *y2 = *y1 + height; -} - -static gint -get_position_from_xy (EText *text, - gint x, - gint y) -{ - gint index; - gint trailing; - - x -= text->xofs; - y -= text->yofs; - - if (text->editing) { - x += text->xofs_edit; - y += text->yofs_edit; - } - - x -= text->cx; - y -= text->cy; - - pango_layout_xy_to_index ( - text->layout, x * PANGO_SCALE, - y * PANGO_SCALE, &index, &trailing); - - return g_utf8_pointer_to_offset (text->text, text->text + index + trailing); -} - -#define SCROLL_WAIT_TIME 30000 - -static gboolean -_blink_scroll_timeout (gpointer data) -{ - EText *text = E_TEXT (data); - gulong current_time; - gboolean scroll = FALSE; - gboolean redraw = FALSE; - - g_timer_elapsed (text->timer, ¤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 && text->clip) { - gint old_xofs_edit = text->xofs_edit; - gint old_yofs_edit = text->yofs_edit; - - if (text->clip_cwidth >= 0 && - text->lastx - text->clip_cx > text->clip_cwidth && - text->xofs_edit < text->width - text->clip_cwidth) { - text->xofs_edit += 4; - if (text->xofs_edit > text->width - text->clip_cwidth + 1) - text->xofs_edit = text->width - text->clip_cwidth + 1; - } - if (text->lastx - text->clip_cx < 0 && - text->xofs_edit > 0) { - text->xofs_edit -= 4; - if (text->xofs_edit < 0) - text->xofs_edit = 0; - } - - if (text->clip_cheight >= 0 && - text->lasty - text->clip_cy > text->clip_cheight && - text->yofs_edit < text->height - text->clip_cheight) { - text->yofs_edit += 4; - if (text->yofs_edit > text->height - text->clip_cheight + 1) - text->yofs_edit = text->height - text->clip_cheight + 1; - } - if (text->lasty - text->clip_cy < 0 && - text->yofs_edit > 0) { - text->yofs_edit -= 4; - if (text->yofs_edit < 0) - text->yofs_edit = 0; - } - - if (old_xofs_edit != text->xofs_edit || - old_yofs_edit != text->yofs_edit) { - ETextEventProcessorEvent e_tep_event; - e_tep_event.type = GDK_MOTION_NOTIFY; - e_tep_event.motion.state = text->last_state; - e_tep_event.motion.time = 0; - e_tep_event.motion.position = - get_position_from_xy ( - text, text->lastx, text->lasty); - _get_tep (text); - e_text_event_processor_handle_event ( - text->tep, - &e_tep_event); - text->scroll_start = current_time; - redraw = TRUE; - } - } - - if (!((current_time / 500000) % 2)) { - if (!text->show_cursor) - redraw = TRUE; - text->show_cursor = TRUE; - } else { - if (text->show_cursor) - redraw = TRUE; - text->show_cursor = FALSE; - } - if (redraw) { - text->needs_redraw = 1; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (text)); - } - return TRUE; -} - -static void -start_editing (EText *text) -{ - if (text->editing) - return; - - e_text_reset_im_context (text); - - g_free (text->revert); - text->revert = g_strdup (text->text); - - text->editing = TRUE; - if (text->pointer_in) { - GdkWindow *window; - - window = gtk_widget_get_window ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas)); - - if (text->default_cursor_shown) { - gdk_window_set_cursor (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) { - GdkWindow *window; - - window = gtk_widget_get_window ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas)); - gdk_window_set_cursor (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; - } - - text->need_im_reset = TRUE; - text->preedit_len = 0; - text->preedit_pos = 0; -} - -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; - GdkWindow *window; - gint return_val = 0; - - if (!text->model) - return 0; - - window = gtk_widget_get_window (GTK_WIDGET (item->canvas)); - - e_tep_event.type = event->type; - switch (event->type) { - case GDK_FOCUS_CHANGE: - if (text->editable) { - GdkEventFocus *focus_event; - focus_event = (GdkEventFocus *) event; - if (focus_event->in) { - if (text->im_context) { - if (!text->im_context_signals_registered) { - g_signal_connect ( - text->im_context, "commit", - G_CALLBACK (e_text_commit_cb), text); - g_signal_connect ( - text->im_context, "preedit_changed", - G_CALLBACK (e_text_preedit_changed_cb), text); - g_signal_connect ( - text->im_context, "retrieve_surrounding", - G_CALLBACK (e_text_retrieve_surrounding_cb), text); - g_signal_connect ( - text->im_context, "delete_surrounding", - G_CALLBACK (e_text_delete_surrounding_cb), text); - text->im_context_signals_registered = TRUE; - } - gtk_im_context_focus_in (text->im_context); - } - - start_editing (text); - - /* So we'll redraw and the - * cursor will be shown. */ - text->show_cursor = FALSE; - } else { - if (text->im_context) { - gtk_im_context_focus_out (text->im_context); - disconnect_im_context (text); - text->need_im_reset = TRUE; - } - - e_text_stop_editing (text); - if (text->timeout_id) { - g_source_remove (text->timeout_id); - text->timeout_id = 0; - } - if (text->show_cursor) { - text->show_cursor = FALSE; - text->needs_redraw = 1; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (text)); - } - } - if (text->line_wrap) - text->needs_split_into_lines = 1; - e_canvas_item_request_reflow (GNOME_CANVAS_ITEM (text)); - } - return_val = 0; - break; - case GDK_KEY_PRESS: - - /* Handle S-F10 key binding here. */ - - if (event->key.keyval == GDK_KEY_F10 - && (event->key.state & GDK_SHIFT_MASK) - && text->handle_popup) { - - /* Simulate a GdkEventButton here, so that we can - * call e_text_do_popup directly */ - - GdkEvent *button_event; - - button_event = gdk_event_new (GDK_BUTTON_PRESS); - button_event->button.time = event->key.time; - button_event->button.button = 0; - e_text_do_popup (text, button_event, 0); - return 1; - } - - /* Fall Through */ - - case GDK_KEY_RELEASE: - - if (text->editing) { - GdkEventKey key; - gint ret; - - if (text->im_context && - gtk_im_context_filter_keypress ( - text->im_context, - (GdkEventKey *) event)) { - text->need_im_reset = TRUE; - return 1; - } - - key = event->key; - e_tep_event.key.time = key.time; - e_tep_event.key.state = key.state; - e_tep_event.key.keyval = key.keyval; - - /* This is probably ugly hack, but we - * have to handle UTF-8 input somehow. */ - 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; - } - - _get_tep (text); - ret = e_text_event_processor_handle_event (text->tep, &e_tep_event); - - if (event->type == GDK_KEY_PRESS) - g_signal_emit ( - text, e_text_signals[E_TEXT_KEYPRESS], 0, - e_tep_event.key.keyval, e_tep_event.key.state); - - if (e_tep_event.key.string) - g_free ((gpointer) e_tep_event.key.string); - - return ret; - } - break; - case GDK_BUTTON_PRESS: /* Fall Through */ - case GDK_BUTTON_RELEASE: - if ((!text->editing) - && text->editable - && (event->button.button == 1 || - event->button.button == 2)) { - e_canvas_item_grab_focus (item, TRUE); - start_editing (text); - } - - /* We follow convention and emit popup events on right-clicks. */ - if (event->type == GDK_BUTTON_PRESS && event->button.button == 3) { - if (text->handle_popup) { - e_text_do_popup ( - text, event, - get_position_from_xy ( - text, event->button.x, - event->button.y)); - return 1; - } - else { - break; - } - } - - /* Create our own double and triple click events, - * as gnome-canvas doesn't forward them to us */ - if (event->type == GDK_BUTTON_PRESS) { - if (text->dbl_timeout == 0 && - text->tpl_timeout == 0) { - text->dbl_timeout = g_timeout_add ( - 200, _click, &(text->dbl_timeout)); - } else { - if (text->tpl_timeout == 0) { - e_tep_event.type = GDK_2BUTTON_PRESS; - text->tpl_timeout = g_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); - e_tep_event.button.device = - gdk_event_get_device (event); - _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: - text->pointer_in = TRUE; - if (text->editing) { - if (text->default_cursor_shown) { - gdk_window_set_cursor (window, text->i_cursor); - text->default_cursor_shown = FALSE; - } - } - break; - case GDK_LEAVE_NOTIFY: - text->pointer_in = FALSE; - if (text->editing) { - if (!text->default_cursor_shown) { - gdk_window_set_cursor ( - window, text->default_cursor); - text->default_cursor_shown = TRUE; - } - } - break; - default: - break; - } - if (return_val) - return return_val; - if (GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->event) - return GNOME_CANVAS_ITEM_CLASS (e_text_parent_class)->event (item, event); - else - return 0; -} - -void -e_text_copy_clipboard (EText *text) -{ - gint selection_start_pos; - gint selection_end_pos; - - selection_start_pos = MIN (text->selection_start, text->selection_end); - selection_end_pos = MAX (text->selection_start, text->selection_end); - - /* convert sel_start/sel_end to byte indices */ - selection_start_pos = g_utf8_offset_to_pointer ( - text->text, selection_start_pos) - text->text; - selection_end_pos = g_utf8_offset_to_pointer ( - text->text, selection_end_pos) - text->text; - - gtk_clipboard_set_text ( - gtk_widget_get_clipboard ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), - GDK_SELECTION_CLIPBOARD), - text->text + selection_start_pos, - selection_end_pos - selection_start_pos); -} - -void -e_text_delete_selection (EText *text) -{ - gint sel_start, sel_end; - - sel_start = MIN (text->selection_start, text->selection_end); - sel_end = MAX (text->selection_start, text->selection_end); - - if (sel_start != sel_end) - e_text_model_delete (text->model, sel_start, sel_end - sel_start); - text->need_im_reset = TRUE; -} - -void -e_text_cut_clipboard (EText *text) -{ - e_text_copy_clipboard (text); - e_text_delete_selection (text); -} - -void -e_text_paste_clipboard (EText *text) -{ - ETextEventProcessorCommand command; - - command.action = E_TEP_PASTE; - command.position = E_TEP_SELECTION; - command.string = ""; - command.value = 0; - e_text_command (text->tep, &command, text); -} - -void -e_text_select_all (EText *text) -{ - ETextEventProcessorCommand command; - - command.action = E_TEP_SELECT; - command.position = E_TEP_SELECT_ALL; - command.string = ""; - command.value = 0; - e_text_command (text->tep, &command, text); -} - -static void -primary_get_cb (GtkClipboard *clipboard, - GtkSelectionData *selection_data, - guint info, - gpointer data) -{ - EText *text = E_TEXT (data); - gint sel_start, sel_end; - - sel_start = MIN (text->selection_start, text->selection_end); - sel_end = MAX (text->selection_start, text->selection_end); - - /* convert sel_start/sel_end to byte indices */ - sel_start = g_utf8_offset_to_pointer (text->text, sel_start) - text->text; - sel_end = g_utf8_offset_to_pointer (text->text, sel_end) - text->text; - - if (sel_start != sel_end) { - gtk_selection_data_set_text ( - selection_data, - text->text + sel_start, - sel_end - sel_start); - } -} - -static void -primary_clear_cb (GtkClipboard *clipboard, - gpointer data) -{ -#ifdef notyet - /* XXX */ - gtk_editable_select_region ( - GTK_EDITABLE (entry), entry->current_pos, entry->current_pos); -#endif -} - -static void -e_text_update_primary_selection (EText *text) -{ - static const GtkTargetEntry targets[] = { - { (gchar *) "UTF8_STRING", 0, 0 }, - { (gchar *) "UTF-8", 0, 0 }, - { (gchar *) "STRING", 0, 0 }, - { (gchar *) "TEXT", 0, 0 }, - { (gchar *) "COMPOUND_TEXT", 0, 0 } - }; - GtkClipboard *clipboard; - - clipboard = gtk_widget_get_clipboard ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), - GDK_SELECTION_PRIMARY); - - if (text->selection_start != text->selection_end) { - if (!gtk_clipboard_set_with_owner ( - clipboard, targets, G_N_ELEMENTS (targets), - primary_get_cb, primary_clear_cb, G_OBJECT (text))) - primary_clear_cb (clipboard, text); - } else { - if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (text)) - gtk_clipboard_clear (clipboard); - } -} - -static void -paste_received (GtkClipboard *clipboard, - const gchar *text, - gpointer data) -{ - EText *etext = E_TEXT (data); - - if (text && g_utf8_validate (text, strlen (text), NULL)) { - if (etext->selection_end != etext->selection_start) - e_text_delete_selection (etext); - - e_text_insert (etext, text); - } - - g_object_unref (etext); -} - -static void -e_text_paste (EText *text, - GdkAtom selection) -{ - g_object_ref (text); - gtk_clipboard_request_text ( - gtk_widget_get_clipboard ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), - selection), paste_received, text); -} - -typedef struct { - EText *text; - GdkEvent *event; - gint position; -} PopupClosure; - -static void -popup_menu_detach (GtkWidget *attach_widget, - GtkMenu *menu) -{ -} - -static void -popup_menu_placement_cb (GtkMenu *menu, - gint *x, - gint *y, - gboolean *push_in, - gpointer user_data) -{ - EText *text = E_TEXT (user_data); - GnomeCanvasItem *item = &text->item; - GnomeCanvas *parent = item->canvas; - - if (parent) { - GdkWindow *window; - - window = gtk_widget_get_window (GTK_WIDGET (parent)); - gdk_window_get_origin (window, x, y); - *x += item->x1 + text->width / 2; - *y += item->y1 + text->height / 2; - } - - return; -} - -static void -popup_targets_received (GtkClipboard *clipboard, - GtkSelectionData *data, - gpointer user_data) -{ - PopupClosure *closure = user_data; - EText *text = closure->text; - GdkEvent *event = closure->event; - gint position = closure->position; - GtkWidget *popup_menu = gtk_menu_new (); - GtkWidget *menuitem, *submenu; - guint event_button = 0; - guint32 event_time; - - gdk_event_get_button (event, &event_button); - event_time = gdk_event_get_time (event); - - g_free (closure); - - gtk_menu_attach_to_widget ( - GTK_MENU (popup_menu), - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), - popup_menu_detach); - - /* cut menu item */ - menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_CUT, NULL); - gtk_widget_show (menuitem); - gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem); - g_signal_connect_swapped ( - menuitem, "activate", - G_CALLBACK (e_text_cut_clipboard), text); - gtk_widget_set_sensitive ( - menuitem, text->editable && - (text->selection_start != text->selection_end)); - - /* copy menu item */ - menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_COPY, NULL); - gtk_widget_show (menuitem); - gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem); - g_signal_connect_swapped ( - menuitem, "activate", - G_CALLBACK (e_text_copy_clipboard), text); - gtk_widget_set_sensitive (menuitem, text->selection_start != text->selection_end); - - /* paste menu item */ - menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_PASTE, NULL); - gtk_widget_show (menuitem); - gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem); - g_signal_connect_swapped ( - menuitem, "activate", - G_CALLBACK (e_text_paste_clipboard), text); - gtk_widget_set_sensitive ( - menuitem, text->editable && - gtk_selection_data_targets_include_text (data)); - - menuitem = gtk_menu_item_new_with_label (_("Select All")); - gtk_widget_show (menuitem); - gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem); - g_signal_connect_swapped ( - menuitem, "activate", - G_CALLBACK (e_text_select_all), text); - gtk_widget_set_sensitive (menuitem, strlen (text->text) > 0); - - menuitem = gtk_separator_menu_item_new (); - gtk_widget_show (menuitem); - gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem); - - if (text->im_context && GTK_IS_IM_MULTICONTEXT (text->im_context)) { - menuitem = gtk_menu_item_new_with_label (_("Input Methods")); - gtk_widget_show (menuitem); - submenu = gtk_menu_new (); - gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu); - - gtk_menu_shell_append (GTK_MENU_SHELL (popup_menu), menuitem); - - gtk_im_multicontext_append_menuitems ( - GTK_IM_MULTICONTEXT (text->im_context), - GTK_MENU_SHELL (submenu)); - } - - g_signal_emit ( - text, - e_text_signals[E_TEXT_POPULATE_POPUP], - 0, - event, - position, - popup_menu); - - /* If invoked by S-F10 key binding, button will be 0. */ - if (event_button == 0) { - gtk_menu_popup ( - GTK_MENU (popup_menu), NULL, NULL, - popup_menu_placement_cb, (gpointer) text, - event_button, GDK_CURRENT_TIME); - } else { - gtk_menu_popup ( - GTK_MENU (popup_menu), NULL, NULL, - NULL, NULL, - event_button, event_time); - } - - g_object_unref (text); - gdk_event_free (event); -} - -static void -e_text_do_popup (EText *text, - GdkEvent *button_event, - gint position) -{ - PopupClosure *closure = g_new (PopupClosure, 1); - - closure->text = g_object_ref (text); - closure->event = gdk_event_copy (button_event); - closure->position = position; - - gtk_clipboard_request_contents ( - gtk_widget_get_clipboard ( - GTK_WIDGET (GNOME_CANVAS_ITEM (text)->canvas), - GDK_SELECTION_CLIPBOARD), - gdk_atom_intern ("TARGETS", FALSE), - popup_targets_received, - closure); -} - -static void -e_text_reset_im_context (EText *text) -{ - if (text->need_im_reset && text->im_context) { - text->need_im_reset = FALSE; - gtk_im_context_reset (text->im_context); - } -} - -/* fixme: */ - -static gint -next_word (EText *text, - gint start) -{ - gchar *p = g_utf8_offset_to_pointer (text->text, start); - gint length; - - length = g_utf8_strlen (text->text, -1); - - if (start >= length) { - return length; - } else { - p = g_utf8_next_char (p); - start++; - - while (p && *p) { - gunichar unival = g_utf8_get_char (p); - if (g_unichar_isspace (unival)) { - return start + 1; - } - else { - p = g_utf8_next_char (p); - start++; - } - } - } - - return g_utf8_pointer_to_offset (text->text, p); -} - -static gint -find_offset_into_line (EText *text, - gint offset_into_text, - gchar **start_of_line) -{ - gchar *p; - - p = g_utf8_offset_to_pointer (text->text, offset_into_text); - - if (p == text->text) { - if (start_of_line) - *start_of_line = (gchar *)text->text; - return 0; - } - else { - p = g_utf8_find_prev_char (text->text, p); - - while (p && p > text->text) { - if (*p == '\n') { - if (start_of_line) - *start_of_line = p+1; - return offset_into_text - - g_utf8_pointer_to_offset ( - text->text, p + 1); - } - p = g_utf8_find_prev_char (text->text, p); - } - - if (start_of_line) - *start_of_line = (gchar *)text->text; - return offset_into_text; - } -} - -/* direction = TRUE (move forward), FALSE (move backward) - * Any error shall return length (text->text) or 0 or - * text->selection_end (as deemed fit) */ -static gint -_get_updated_position (EText *text, - gboolean direction) -{ - PangoLogAttr *log_attrs = NULL; - gint n_attrs; - gchar *p = NULL; - gint new_pos = 0; - gint length = 0; - - /* Basic sanity test, return whatever position we are currently at. */ - g_return_val_if_fail (text->layout != NULL, text->selection_end); - - length = g_utf8_strlen (text->text, -1); - - /* length checks to make sure we are not wandering - * off into nonexistant memory... */ - if ((text->selection_end >= length) && (TRUE == direction)) /* forward */ - return length; - /* checking for -ve value wont hurt! */ - if ((text->selection_end <= 0) && (FALSE == direction)) /* backward */ - return 0; - - /* check for validness of full text->text */ - if (!g_utf8_validate (text->text, -1, NULL)) - return text->selection_end; - - /* get layout's PangoLogAttr to facilitate moving when - * moving across grapheme cluster as in indic langs */ - pango_layout_get_log_attrs (text->layout, &log_attrs, &n_attrs); - - /* Fetch the current gchar index in the line & keep moving - * forward until we can display cursor */ - p = g_utf8_offset_to_pointer (text->text, text->selection_end); - - new_pos = text->selection_end; - while (1) - { - /* check before moving forward/backwards - * if we have more chars to move or not */ - if (TRUE == direction) - p = g_utf8_next_char (p); - else - p = g_utf8_prev_char (p); - - /* validate the new string & return with original position if check fails */ - if (!g_utf8_validate (p, -1, NULL)) - break; /* will return old value of new_pos */ - - new_pos = g_utf8_pointer_to_offset (text->text, p); - - /* if is_cursor_position is set, cursor can appear in front of character. - * i.e. this is a grapheme boundary AND make some sanity checks */ - if ((new_pos >=0) && (new_pos < n_attrs) && - (log_attrs[new_pos].is_cursor_position)) - break; - else if ((new_pos < 0) || (new_pos >= n_attrs)) - { - new_pos = text->selection_end; - break; - } - } - - if (log_attrs) - g_free (log_attrs); - - return new_pos; -} - -static gint -_get_position (EText *text, - ETextEventProcessorCommand *command) -{ - gint length, obj_num; - gunichar unival; - gchar *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: - - if (text->selection_end >= 1) { - - p = g_utf8_offset_to_pointer (text->text, text->selection_end); - if (p != text->text) { - p = g_utf8_find_prev_char (text->text, p); - while (p && p > text->text) { - if (*p == '\n') { - new_pos = g_utf8_pointer_to_offset (text->text, p) + 1; - break; - } - p = g_utf8_find_prev_char (text->text, p); - } - } - } - - break; - - case E_TEP_END_OF_LINE: - new_pos = -1; - length = g_utf8_strlen (text->text, -1); - - if (text->selection_end >= length) { - new_pos = length; - } else { - - p = g_utf8_offset_to_pointer (text->text, text->selection_end); - - while (p && *p) { - if (*p == '\n') { - new_pos = g_utf8_pointer_to_offset (text->text, p); - p = NULL; - } else - p = g_utf8_next_char (p); - } - } - - if (new_pos == -1) - new_pos = g_utf8_pointer_to_offset (text->text, p); - - break; - - case E_TEP_FORWARD_CHARACTER: - length = g_utf8_strlen (text->text, -1); - - if (text->selection_end >= length) - new_pos = length; - else - /* get updated position to display cursor */ - new_pos = _get_updated_position (text, TRUE); - - break; - - case E_TEP_BACKWARD_CHARACTER: - new_pos = 0; - if (text->selection_end >= 1) - /* get updated position to display cursor */ - new_pos = _get_updated_position (text, FALSE); - - 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) { - gint pos = text->selection_end; - - p = g_utf8_find_prev_char ( - text->text, g_utf8_offset_to_pointer ( - text->text, text->selection_end)); - pos--; - - if (p != text->text) { - p = g_utf8_find_prev_char (text->text, p); - pos--; - - while (p && p > text->text) { - unival = g_utf8_get_char (p); - if (g_unichar_isspace (unival)) { - new_pos = pos + 1; - p = NULL; - } - else { - p = g_utf8_find_prev_char (text->text, p); - pos--; - } - } - } - } - - break; - - case E_TEP_FORWARD_LINE: { - gint offset_into_line; - - offset_into_line = find_offset_into_line (text, text->selection_end, NULL); - if (offset_into_line == -1) - return text->selection_end; - - /* now we search forward til we hit a \n, and then - * offset_into_line more characters */ - p = g_utf8_offset_to_pointer (text->text, text->selection_end); - while (p && *p) { - if (*p == '\n') - break; - p = g_utf8_next_char (p); - } - if (p && *p == '\n') { - /* now we loop forward offset_into_line - * characters, or until we hit \n or \0 */ - - p = g_utf8_next_char (p); - while (offset_into_line > 0 && p && *p != '\n' && *p != '\0') { - p = g_utf8_next_char (p); - offset_into_line--; - } - } - - /* at this point, p points to the new location, - * convert it to an offset and we're done */ - new_pos = g_utf8_pointer_to_offset (text->text, p); - break; - } - case E_TEP_BACKWARD_LINE: { - gint offset_into_line; - - offset_into_line = find_offset_into_line ( - text, text->selection_end, &p); - - if (offset_into_line == -1) - return text->selection_end; - - /* p points to the first character on our line. if we - * have a \n before it, skip it and scan til we hit - * the next one */ - if (p != text->text) { - p = g_utf8_find_prev_char (text->text, p); - if (*p == '\n') { - p = g_utf8_find_prev_char (text->text, p); - while (p > text->text) { - if (*p == '\n') { - p++; - break; - } - p = g_utf8_find_prev_char (text->text, p); - } - } - } - - /* at this point 'p' points to the start of the - * previous line, move forward 'offset_into_line' - * times. */ - - while (offset_into_line > 0 && p && *p != '\n' && *p != '\0') { - p = g_utf8_next_char (p); - offset_into_line--; - } - - /* at this point, p points to the new location, - * convert it to an offset and we're done */ - new_pos = g_utf8_pointer_to_offset (text->text, p); - break; - } - case E_TEP_SELECT_WORD: - /* This is a silly hack to cause double-clicking on an object - * to activate that object. - * (Normally, double click == select word, which is why this is here.) */ - - obj_num = e_text_model_get_object_at_offset ( - text->model, text->selection_start); - if (obj_num != -1) { - e_text_model_activate_nth_object (text->model, obj_num); - new_pos = text->selection_start; - break; - } - - if (text->selection_end < 1) { - new_pos = 0; - break; - } - - p = g_utf8_offset_to_pointer (text->text, text->selection_end); - - p = g_utf8_find_prev_char (text->text, p); - - while (p && p > text->text) { - unival = g_utf8_get_char (p); - if (g_unichar_isspace (unival)) { - p = g_utf8_next_char (p); - break; - } - p = g_utf8_find_prev_char (text->text, p); - } - - if (!p) - text->selection_start = 0; - else - text->selection_start = g_utf8_pointer_to_offset (text->text, p); - - text->selection_start = - e_text_model_validate_position ( - text->model, text->selection_start); - - length = g_utf8_strlen (text->text, -1); - if (text->selection_end >= length) { - new_pos = length; - break; - } - - p = g_utf8_offset_to_pointer (text->text, text->selection_end); - while (p && *p) { - unival = g_utf8_get_char (p); - if (g_unichar_isspace (unival)) { - new_pos = g_utf8_pointer_to_offset (text->text, p); - break; - } else - p = g_utf8_next_char (p); - } - - if (!new_pos) - new_pos = g_utf8_strlen (text->text, -1); - - return new_pos; - - case E_TEP_SELECT_ALL: - text->selection_start = 0; - new_pos = g_utf8_strlen (text->text, -1); - break; - - case E_TEP_FORWARD_PARAGRAPH: - case E_TEP_BACKWARD_PARAGRAPH: - - case E_TEP_FORWARD_PAGE: - case E_TEP_BACKWARD_PAGE: - new_pos = text->selection_end; - break; - - default: - new_pos = text->selection_end; - break; - } - - new_pos = e_text_model_validate_position (text->model, new_pos); - - return new_pos; -} - -static void -e_text_insert (EText *text, - const gchar *string) -{ - gint len = strlen (string); - - if (len > 0) { - gint utf8len = 0; - - if (!text->allow_newlines) { - const gchar *i; - gchar *new_string = g_malloc (len + 1); - gchar *j = new_string; - - for (i = string; *i; i = g_utf8_next_char (i)) { - if (*i != '\n') { - gunichar c; - gint charlen; - - c = g_utf8_get_char (i); - charlen = g_unichar_to_utf8 (c, j); - j += charlen; - utf8len++; - } - } - *j = 0; - e_text_model_insert_length ( - text->model, text->selection_start, - new_string, utf8len); - g_free (new_string); - } - else { - utf8len = g_utf8_strlen (string, -1); - e_text_model_insert_length ( - text->model, text->selection_start, - string, utf8len); - } - } -} - -static void -capitalize (EText *text, - gint start, - gint end, - ETextEventProcessorCaps type) -{ - gboolean first = TRUE; - const gchar *p = g_utf8_offset_to_pointer (text->text, start); - const gchar *text_end = g_utf8_offset_to_pointer (text->text, end); - gint utf8len = text_end - p; - - if (utf8len > 0) { - gchar *new_text = g_new0 (char, utf8len * 6); - gchar *output = new_text; - - while (p && *p && p < text_end) { - gunichar unival = g_utf8_get_char (p); - gunichar newval = unival; - - switch (type) { - case E_TEP_CAPS_UPPER: - newval = g_unichar_toupper (unival); - break; - case E_TEP_CAPS_LOWER: - newval = g_unichar_tolower (unival); - break; - case E_TEP_CAPS_TITLE: - if (g_unichar_isalpha (unival)) { - if (first) - newval = g_unichar_totitle (unival); - else - newval = g_unichar_tolower (unival); - first = FALSE; - } else { - first = TRUE; - } - break; - } - g_unichar_to_utf8 (newval, output); - output = g_utf8_next_char (output); - - p = g_utf8_next_char (p); - } - *output = 0; - - e_text_model_delete (text->model, start, utf8len); - e_text_model_insert_length (text->model, start, new_text, utf8len); - g_free (new_text); - } -} - -static void -e_text_command (ETextEventProcessor *tep, - ETextEventProcessorCommand *command, - gpointer data) -{ - EText *text = E_TEXT (data); - gboolean scroll = TRUE; - gboolean use_start = TRUE; - - switch (command->action) { - case E_TEP_MOVE: - text->selection_start = _get_position (text, command); - text->selection_end = text->selection_start; - if (text->timer) { - g_timer_reset (text->timer); - } - - text->need_im_reset = TRUE; - use_start = TRUE; - break; - case E_TEP_SELECT: - text->selection_start = - e_text_model_validate_position ( - text->model, text->selection_start); /* paranoia */ - text->selection_end = _get_position (text, command); - - e_text_update_primary_selection (text); - - text->need_im_reset = TRUE; - use_start = FALSE; - - break; - case E_TEP_DELETE: - if (text->selection_end == text->selection_start) { - text->selection_end = _get_position (text, command); - } - e_text_delete_selection (text); - if (text->timer) { - g_timer_reset (text->timer); - } - - text->need_im_reset = TRUE; - use_start = FALSE; - - break; - - case E_TEP_INSERT: - if (g_utf8_validate (command->string, command->value, NULL)) { - if (text->selection_end != text->selection_start) { - e_text_delete_selection (text); - } - e_text_insert (text, command->string); - if (text->timer) { - g_timer_reset (text->timer); - } - text->need_im_reset = TRUE; - } - break; - case E_TEP_COPY: - e_text_copy_clipboard (text); - - if (text->timer) { - g_timer_reset (text->timer); - } - scroll = FALSE; - break; - case E_TEP_PASTE: - e_text_paste (text, GDK_NONE); - if (text->timer) { - g_timer_reset (text->timer); - } - text->need_im_reset = TRUE; - break; - case E_TEP_GET_SELECTION: - e_text_paste (text, GDK_SELECTION_PRIMARY); - break; - case E_TEP_ACTIVATE: - g_signal_emit (text, e_text_signals[E_TEXT_ACTIVATE], 0); - if (text->timer) { - g_timer_reset (text->timer); - } - break; - case E_TEP_SET_SELECT_BY_WORD: - text->select_by_word = command->value; - break; - case E_TEP_GRAB: - e_canvas_item_grab ( - E_CANVAS (GNOME_CANVAS_ITEM (text)->canvas), - GNOME_CANVAS_ITEM (text), - GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK, - text->i_cursor, - command->device, - command->time, - NULL, - NULL); - scroll = FALSE; - break; - case E_TEP_UNGRAB: - e_canvas_item_ungrab ( - E_CANVAS (GNOME_CANVAS_ITEM (text)->canvas), - GNOME_CANVAS_ITEM (text), - command->time); - scroll = FALSE; - break; - case E_TEP_CAPS: - if (text->selection_start == text->selection_end) { - capitalize ( - text, text->selection_start, - next_word (text, text->selection_start), - command->value); - } else { - gint selection_start = MIN ( - text->selection_start, text->selection_end); - gint selection_end = MAX ( - text->selection_start, text->selection_end); - capitalize ( - text, selection_start, - selection_end, command->value); - } - break; - case E_TEP_NOP: - scroll = FALSE; - break; - } - - e_text_reset_im_context (text); - - /* it's possible to get here without ever having been realized - * by our canvas (if the e-text started completely obscured.) - * so let's create our layout object if we don't already have - * one. */ - if (!text->layout) - create_layout (text); - - /* We move cursor only if scroll is TRUE */ - if (scroll && !text->button_down) { - /* XXX do we really need the @trailing logic here? if - * we don't we can scrap the loop and just use - * pango_layout_index_to_pos */ - PangoLayoutLine *cur_line = NULL; - gint selection_index; - PangoLayoutIter *iter = pango_layout_get_iter (text->layout); - - /* check if we are using selection_start or selection_end for moving? */ - selection_index = use_start ? text->selection_start : text->selection_end; - - /* convert to a byte index */ - selection_index = g_utf8_offset_to_pointer ( - text->text, selection_index) - text->text; - - do { - PangoLayoutLine *line = pango_layout_iter_get_line (iter); - - if (selection_index >= line->start_index && - selection_index <= line->start_index + line->length) { - /* found the line with the start of the selection */ - cur_line = line; - break; - } - - } while (pango_layout_iter_next_line (iter)); - - if (cur_line) { - gint xpos, ypos; - gdouble clip_width, clip_height; - /* gboolean trailing = FALSE; */ - PangoRectangle pango_pos; - - if (selection_index > 0 && selection_index == - cur_line->start_index + cur_line->length) { - selection_index--; - /* trailing = TRUE; */ - } - - pango_layout_index_to_pos (text->layout, selection_index, &pango_pos); - - pango_pos.x = PANGO_PIXELS (pango_pos.x); - pango_pos.y = PANGO_PIXELS (pango_pos.y); - pango_pos.width = (pango_pos.width + PANGO_SCALE / 2) / PANGO_SCALE; - pango_pos.height = (pango_pos.height + PANGO_SCALE / 2) / PANGO_SCALE; - - /* scroll for X */ - xpos = pango_pos.x; /* + (trailing ? 0 : pango_pos.width);*/ - - if (xpos + 2 < text->xofs_edit) { - text->xofs_edit = xpos; - } - - clip_width = text->clip_width; - - if (xpos + pango_pos.width - clip_width > text->xofs_edit) { - text->xofs_edit = xpos + pango_pos.width - clip_width; - } - - /* scroll for Y */ - if (pango_pos.y + 2 < text->yofs_edit) { - ypos = pango_pos.y; - text->yofs_edit = ypos; - } - else { - ypos = pango_pos.y + pango_pos.height; - } - - if (text->clip_height < 0) - clip_height = text->height; - else - clip_height = text->clip_height; - - if (ypos - clip_height > text->yofs_edit) { - text->yofs_edit = ypos - clip_height; - } - - } - - pango_layout_iter_free (iter); - } - - text->needs_redraw = 1; - gnome_canvas_item_request_update (GNOME_CANVAS_ITEM (text)); -} - -/* Class initialization function for the text item */ -static void -e_text_class_init (ETextClass *class) -{ - GObjectClass *gobject_class; - GnomeCanvasItemClass *item_class; - - gobject_class = (GObjectClass *) class; - item_class = (GnomeCanvasItemClass *) class; - - gobject_class->dispose = e_text_dispose; - gobject_class->set_property = e_text_set_property; - gobject_class->get_property = e_text_get_property; - - item_class->update = e_text_update; - item_class->realize = e_text_realize; - item_class->unrealize = e_text_unrealize; - item_class->draw = e_text_draw; - item_class->point = e_text_point; - item_class->bounds = e_text_bounds; - item_class->event = e_text_event; - - class->changed = NULL; - class->activate = NULL; - - e_text_signals[E_TEXT_CHANGED] = g_signal_new ( - "changed", - G_OBJECT_CLASS_TYPE (gobject_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (ETextClass, changed), - NULL, NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, 0); - - e_text_signals[E_TEXT_ACTIVATE] = g_signal_new ( - "activate", - G_OBJECT_CLASS_TYPE (gobject_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (ETextClass, activate), - NULL, NULL, - g_cclosure_marshal_VOID__VOID, - G_TYPE_NONE, 0); - - e_text_signals[E_TEXT_KEYPRESS] = g_signal_new ( - "keypress", - G_OBJECT_CLASS_TYPE (gobject_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (ETextClass, keypress), - NULL, NULL, - e_marshal_NONE__INT_INT, - G_TYPE_NONE, 2, - G_TYPE_UINT, - G_TYPE_UINT); - - e_text_signals[E_TEXT_POPULATE_POPUP] = g_signal_new ( - "populate_popup", - G_OBJECT_CLASS_TYPE (gobject_class), - G_SIGNAL_RUN_LAST, - G_STRUCT_OFFSET (ETextClass, populate_popup), - NULL, NULL, - e_marshal_NONE__POINTER_INT_OBJECT, - G_TYPE_NONE, 3, - G_TYPE_POINTER, - G_TYPE_INT, - GTK_TYPE_MENU); - - g_object_class_install_property ( - gobject_class, - PROP_MODEL, - g_param_spec_object ( - "model", - "Model", - "Model", - E_TYPE_TEXT_MODEL, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_EVENT_PROCESSOR, - g_param_spec_object ( - "event_processor", - "Event Processor", - "Event Processor", - E_TEXT_EVENT_PROCESSOR_TYPE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_TEXT, - g_param_spec_string ( - "text", - "Text", - "Text", - NULL, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_BOLD, - g_param_spec_boolean ( - "bold", - "Bold", - "Bold", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_STRIKEOUT, - g_param_spec_boolean ( - "strikeout", - "Strikeout", - "Strikeout", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_JUSTIFICATION, - g_param_spec_enum ( - "justification", - "Justification", - "Justification", - GTK_TYPE_JUSTIFICATION, - GTK_JUSTIFY_LEFT, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_CLIP_WIDTH, - g_param_spec_double ( - "clip_width", - "Clip Width", - "Clip Width", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_CLIP_HEIGHT, - g_param_spec_double ( - "clip_height", - "Clip Height", - "Clip Height", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_CLIP, - g_param_spec_boolean ( - "clip", - "Clip", - "Clip", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_FILL_CLIP_RECTANGLE, - g_param_spec_boolean ( - "fill_clip_rectangle", - "Fill clip rectangle", - "Fill clip rectangle", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_X_OFFSET, - g_param_spec_double ( - "x_offset", - "X Offset", - "X Offset", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_Y_OFFSET, - g_param_spec_double ( - "y_offset", - "Y Offset", - "Y Offset", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_FILL_COLOR, - g_param_spec_string ( - "fill_color", - "Fill color", - "Fill color", - NULL, - G_PARAM_WRITABLE)); - - g_object_class_install_property ( - gobject_class, - PROP_FILL_COLOR_GDK, - g_param_spec_boxed ( - "fill_color_gdk", - "GDK fill color", - "GDK fill color", - GDK_TYPE_COLOR, - G_PARAM_WRITABLE)); - - g_object_class_install_property ( - gobject_class, - PROP_FILL_COLOR_RGBA, - g_param_spec_uint ( - "fill_color_rgba", - "GDK fill color", - "GDK fill color", - 0, G_MAXUINT, 0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_TEXT_WIDTH, - g_param_spec_double ( - "text_width", - "Text width", - "Text width", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READABLE)); - - g_object_class_install_property ( - gobject_class, - PROP_TEXT_HEIGHT, - g_param_spec_double ( - "text_height", - "Text height", - "Text height", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READABLE)); - - g_object_class_install_property ( - gobject_class, - PROP_EDITABLE, - g_param_spec_boolean ( - "editable", - "Editable", - "Editable", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_USE_ELLIPSIS, - g_param_spec_boolean ( - "use_ellipsis", - "Use ellipsis", - "Use ellipsis", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_ELLIPSIS, - g_param_spec_string ( - "ellipsis", - "Ellipsis", - "Ellipsis", - NULL, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_LINE_WRAP, - g_param_spec_boolean ( - "line_wrap", - "Line wrap", - "Line wrap", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_BREAK_CHARACTERS, - g_param_spec_string ( - "break_characters", - "Break characters", - "Break characters", - NULL, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, PROP_MAX_LINES, - g_param_spec_int ( - "max_lines", - "Max lines", - "Max lines", - 0, G_MAXINT, 0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_WIDTH, - g_param_spec_double ( - "width", - "Width", - "Width", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_HEIGHT, - g_param_spec_double ( - "height", - "Height", - "Height", - 0.0, G_MAXDOUBLE, 0.0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_ALLOW_NEWLINES, - g_param_spec_boolean ( - "allow_newlines", - "Allow newlines", - "Allow newlines", - FALSE, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_CURSOR_POS, - g_param_spec_int ( - "cursor_pos", - "Cursor position", - "Cursor position", - 0, G_MAXINT, 0, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_IM_CONTEXT, - g_param_spec_object ( - "im_context", - "IM Context", - "IM Context", - GTK_TYPE_IM_CONTEXT, - G_PARAM_READWRITE)); - - g_object_class_install_property ( - gobject_class, - PROP_HANDLE_POPUP, - g_param_spec_boolean ( - "handle_popup", - "Handle Popup", - "Handle Popup", - FALSE, - G_PARAM_READWRITE)); - - if (!clipboard_atom) - clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE); - - gal_a11y_e_text_init (); -} - -/* 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->preedit_len = 0; - text->preedit_pos = 0; - text->layout = NULL; - - text->revert = NULL; - - text->model_changed_signal_id = g_signal_connect ( - text->model, "changed", - G_CALLBACK (e_text_text_model_changed), text); - - text->model_repos_signal_id = g_signal_connect ( - text->model, "reposition", - G_CALLBACK (e_text_text_model_reposition), text); - - text->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->pointer_in = FALSE; - text->default_cursor_shown = TRUE; - text->line_wrap = FALSE; - text->break_characters = NULL; - text->max_lines = -1; - text->dbl_timeout = 0; - text->tpl_timeout = 0; - - text->bold = FALSE; - text->strikeout = FALSE; - - text->allow_newlines = TRUE; - - text->last_type_request = -1; - text->last_time_request = 0; - text->queued_requests = NULL; - - text->im_context = NULL; - text->need_im_reset = FALSE; - text->im_context_signals_registered = FALSE; - - text->handle_popup = FALSE; - text->rgba_set = FALSE; - - e_canvas_item_set_reflow_callback (GNOME_CANVAS_ITEM (text), e_text_reflow); -} - -/* IM Context Callbacks */ -static void -e_text_commit_cb (GtkIMContext *context, - const gchar *str, - EText *text) -{ - if (g_utf8_validate (str, strlen (str), NULL)) { - if (text->selection_end != text->selection_start) - e_text_delete_selection (text); - e_text_insert (text, str); - g_signal_emit (text, e_text_signals[E_TEXT_KEYPRESS], 0, 0, 0); - } -} - -static void -e_text_preedit_changed_cb (GtkIMContext *context, - EText *etext) -{ - gchar *preedit_string = NULL; - gint cursor_pos; - - gtk_im_context_get_preedit_string ( - context, &preedit_string, - NULL, &cursor_pos); - - cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1)); - etext->preedit_len = strlen (preedit_string); - etext->preedit_pos = g_utf8_offset_to_pointer ( - preedit_string, cursor_pos) - preedit_string; - g_free (preedit_string); - - g_signal_emit (etext, e_text_signals[E_TEXT_KEYPRESS], 0, 0, 0); -} - -static gboolean -e_text_retrieve_surrounding_cb (GtkIMContext *context, - EText *text) -{ - gtk_im_context_set_surrounding ( - context, text->text, strlen (text->text), - g_utf8_offset_to_pointer (text->text, MIN ( - text->selection_start, text->selection_end)) - text->text); - - return TRUE; -} - -static gboolean -e_text_delete_surrounding_cb (GtkIMContext *context, - gint offset, - gint n_chars, - EText *text) -{ - e_text_model_delete ( - text->model, - MIN (text->selection_start, text->selection_end) + offset, - n_chars); - - return TRUE; -} |