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authorPerberos <[email protected]>2011-12-01 22:24:23 -0300
committerPerberos <[email protected]>2011-12-01 22:24:23 -0300
commit0e004c696b0e68b2cff37a4c3315b022a35eaf43 (patch)
tree43261e815529cb9518ed7be37af13b846af8b26b /eel/eel-editable-label.c
downloadcaja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.bz2
caja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.xz
moving from https://github.com/perberos/mate-desktop-environment
Diffstat (limited to 'eel/eel-editable-label.c')
-rw-r--r--eel/eel-editable-label.c4402
1 files changed, 4402 insertions, 0 deletions
diff --git a/eel/eel-editable-label.c b/eel/eel-editable-label.c
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+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include <config.h>
+#include <math.h>
+#include <string.h>
+
+#include "eel-editable-label.h"
+#include "eel-i18n.h"
+#include "eel-marshal.h"
+#include "eel-accessibility.h"
+#include <libgail-util/gailmisc.h>
+
+#include <pango/pango.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkkeysyms.h>
+
+enum
+{
+ MOVE_CURSOR,
+ POPULATE_POPUP,
+ DELETE_FROM_CURSOR,
+ CUT_CLIPBOARD,
+ COPY_CLIPBOARD,
+ PASTE_CLIPBOARD,
+ TOGGLE_OVERWRITE,
+ LAST_SIGNAL
+};
+
+enum
+{
+ PROP_0,
+ PROP_TEXT,
+ PROP_JUSTIFY,
+ PROP_WRAP,
+ PROP_CURSOR_POSITION,
+ PROP_SELECTION_BOUND
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static void eel_editable_label_editable_init (GtkEditableClass *iface);
+static void eel_editable_label_class_init (EelEditableLabelClass *klass);
+static void eel_editable_label_init (EelEditableLabel *label);
+static void eel_editable_label_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void eel_editable_label_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void eel_editable_label_finalize (GObject *object);
+static void eel_editable_label_size_request (GtkWidget *widget,
+ GtkRequisition *requisition);
+static void eel_editable_label_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+static void eel_editable_label_state_changed (GtkWidget *widget,
+ GtkStateType state);
+static void eel_editable_label_style_set (GtkWidget *widget,
+ GtkStyle *previous_style);
+static void eel_editable_label_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_dir);
+static gint eel_editable_label_expose (GtkWidget *widget,
+ GdkEventExpose *event);
+static void eel_editable_label_realize (GtkWidget *widget);
+static void eel_editable_label_unrealize (GtkWidget *widget);
+static void eel_editable_label_map (GtkWidget *widget);
+static void eel_editable_label_unmap (GtkWidget *widget);
+static gint eel_editable_label_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gint eel_editable_label_button_release (GtkWidget *widget,
+ GdkEventButton *event);
+static gint eel_editable_label_motion (GtkWidget *widget,
+ GdkEventMotion *event);
+static gint eel_editable_label_key_press (GtkWidget *widget,
+ GdkEventKey *event);
+static gint eel_editable_label_key_release (GtkWidget *widget,
+ GdkEventKey *event);
+static gint eel_editable_label_focus_in (GtkWidget *widget,
+ GdkEventFocus *event);
+static gint eel_editable_label_focus_out (GtkWidget *widget,
+ GdkEventFocus *event);
+static AtkObject *eel_editable_label_get_accessible (GtkWidget *widget);
+static void eel_editable_label_commit_cb (GtkIMContext *context,
+ const gchar *str,
+ EelEditableLabel *label);
+static void eel_editable_label_preedit_changed_cb (GtkIMContext *context,
+ EelEditableLabel *label);
+static gboolean eel_editable_label_retrieve_surrounding_cb (GtkIMContext *context,
+ EelEditableLabel *label);
+static gboolean eel_editable_label_delete_surrounding_cb (GtkIMContext *slave,
+ gint offset,
+ gint n_chars,
+ EelEditableLabel *label);
+static void eel_editable_label_clear_layout (EelEditableLabel *label);
+static void eel_editable_label_recompute (EelEditableLabel *label);
+static void eel_editable_label_ensure_layout (EelEditableLabel *label,
+ gboolean include_preedit);
+static void eel_editable_label_select_region_index (EelEditableLabel *label,
+ gint anchor_index,
+ gint end_index);
+static gboolean eel_editable_label_focus (GtkWidget *widget,
+ GtkDirectionType direction);
+static void eel_editable_label_move_cursor (EelEditableLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection);
+static void eel_editable_label_delete_from_cursor (EelEditableLabel *label,
+ GtkDeleteType type,
+ gint count);
+static void eel_editable_label_copy_clipboard (EelEditableLabel *label);
+static void eel_editable_label_cut_clipboard (EelEditableLabel *label);
+static void eel_editable_label_paste (EelEditableLabel *label,
+ GdkAtom selection);
+static void eel_editable_label_paste_clipboard (EelEditableLabel *label);
+static void eel_editable_label_select_all (EelEditableLabel *label);
+static void eel_editable_label_do_popup (EelEditableLabel *label,
+ GdkEventButton *event);
+static void eel_editable_label_toggle_overwrite (EelEditableLabel *label);
+static gint eel_editable_label_move_forward_word (EelEditableLabel *label,
+ gint start);
+static gint eel_editable_label_move_backward_word (EelEditableLabel *label,
+ gint start);
+static void eel_editable_label_reset_im_context (EelEditableLabel *label);
+static void eel_editable_label_check_cursor_blink (EelEditableLabel *label);
+static void eel_editable_label_pend_cursor_blink (EelEditableLabel *label);
+
+/* Editable implementation: */
+static void editable_insert_text_emit (GtkEditable *editable,
+ const gchar *new_text,
+ gint new_text_length,
+ gint *position);
+static void editable_delete_text_emit (GtkEditable *editable,
+ gint start_pos,
+ gint end_pos);
+static void editable_insert_text (GtkEditable *editable,
+ const gchar *new_text,
+ gint new_text_length,
+ gint *position);
+static void editable_delete_text (GtkEditable *editable,
+ gint start_pos,
+ gint end_pos);
+static gchar * editable_get_chars (GtkEditable *editable,
+ gint start_pos,
+ gint end_pos);
+static void editable_set_selection_bounds (GtkEditable *editable,
+ gint start,
+ gint end);
+static gboolean editable_get_selection_bounds (GtkEditable *editable,
+ gint *start,
+ gint *end);
+static void editable_real_set_position (GtkEditable *editable,
+ gint position);
+static gint editable_get_position (GtkEditable *editable);
+
+static GdkGC * make_cursor_gc (GtkWidget *widget,
+ const gchar *property_name,
+ GdkColor *fallback);
+
+G_DEFINE_TYPE_WITH_CODE (EelEditableLabel, eel_editable_label, GTK_TYPE_MISC,
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, eel_editable_label_editable_init));
+
+static void
+add_move_binding (GtkBindingSet *binding_set,
+ guint keyval,
+ guint modmask,
+ GtkMovementStep step,
+ gint count)
+{
+ g_assert ((modmask & GDK_SHIFT_MASK) == 0);
+
+ gtk_binding_entry_add_signal (binding_set, keyval, modmask,
+ "move_cursor", 3,
+ G_TYPE_ENUM, step,
+ G_TYPE_INT, count,
+ G_TYPE_BOOLEAN, FALSE);
+
+ /* Selection-extending version */
+ gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
+ "move_cursor", 3,
+ G_TYPE_ENUM, step,
+ G_TYPE_INT, count,
+ G_TYPE_BOOLEAN, TRUE);
+}
+
+static void
+eel_editable_label_class_init (EelEditableLabelClass *class)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (class);
+ GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+ GtkBindingSet *binding_set;
+
+ gobject_class->set_property = eel_editable_label_set_property;
+ gobject_class->get_property = eel_editable_label_get_property;
+ gobject_class->finalize = eel_editable_label_finalize;
+
+ widget_class->size_request = eel_editable_label_size_request;
+ widget_class->size_allocate = eel_editable_label_size_allocate;
+ widget_class->state_changed = eel_editable_label_state_changed;
+ widget_class->style_set = eel_editable_label_style_set;
+ widget_class->direction_changed = eel_editable_label_direction_changed;
+ widget_class->expose_event = eel_editable_label_expose;
+ widget_class->realize = eel_editable_label_realize;
+ widget_class->unrealize = eel_editable_label_unrealize;
+ widget_class->map = eel_editable_label_map;
+ widget_class->unmap = eel_editable_label_unmap;
+ widget_class->button_press_event = eel_editable_label_button_press;
+ widget_class->button_release_event = eel_editable_label_button_release;
+ widget_class->motion_notify_event = eel_editable_label_motion;
+ widget_class->focus = eel_editable_label_focus;
+ widget_class->key_press_event = eel_editable_label_key_press;
+ widget_class->key_release_event = eel_editable_label_key_release;
+ widget_class->focus_in_event = eel_editable_label_focus_in;
+ widget_class->focus_out_event = eel_editable_label_focus_out;
+ widget_class->get_accessible = eel_editable_label_get_accessible;
+
+ class->move_cursor = eel_editable_label_move_cursor;
+ class->delete_from_cursor = eel_editable_label_delete_from_cursor;
+ class->copy_clipboard = eel_editable_label_copy_clipboard;
+ class->cut_clipboard = eel_editable_label_cut_clipboard;
+ class->paste_clipboard = eel_editable_label_paste_clipboard;
+ class->toggle_overwrite = eel_editable_label_toggle_overwrite;
+
+ signals[MOVE_CURSOR] =
+ g_signal_new ("move_cursor",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EelEditableLabelClass, move_cursor),
+ NULL, NULL,
+ eel_marshal_VOID__ENUM_INT_BOOLEAN,
+ G_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT, G_TYPE_BOOLEAN);
+
+ signals[COPY_CLIPBOARD] =
+ g_signal_new ("copy_clipboard",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EelEditableLabelClass, copy_clipboard),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ signals[POPULATE_POPUP] =
+ g_signal_new ("populate_popup",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (EelEditableLabelClass, populate_popup),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__OBJECT,
+ G_TYPE_NONE, 1, GTK_TYPE_MENU);
+
+ signals[DELETE_FROM_CURSOR] =
+ g_signal_new ("delete_from_cursor",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EelEditableLabelClass, delete_from_cursor),
+ NULL, NULL,
+ eel_marshal_VOID__ENUM_INT,
+ G_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, G_TYPE_INT);
+
+ signals[CUT_CLIPBOARD] =
+ g_signal_new ("cut_clipboard",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EelEditableLabelClass, cut_clipboard),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ signals[PASTE_CLIPBOARD] =
+ g_signal_new ("paste_clipboard",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EelEditableLabelClass, paste_clipboard),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ signals[TOGGLE_OVERWRITE] =
+ g_signal_new ("toggle_overwrite",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_STRUCT_OFFSET (EelEditableLabelClass, toggle_overwrite),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+
+ g_object_class_install_property (G_OBJECT_CLASS(object_class),
+ PROP_TEXT,
+ g_param_spec_string ("text",
+ _("Text"),
+ _("The text of the label."),
+ NULL,
+ G_PARAM_READWRITE));
+ g_object_class_install_property (gobject_class,
+ PROP_JUSTIFY,
+ g_param_spec_enum ("justify",
+ _("Justification"),
+ _("The alignment of the lines in the text of the label relative to each other. This does NOT affect the alignment of the label within its allocation. See GtkMisc::xalign for that."),
+ GTK_TYPE_JUSTIFICATION,
+ GTK_JUSTIFY_LEFT,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_WRAP,
+ g_param_spec_boolean ("wrap",
+ _("Line wrap"),
+ _("If set, wrap lines if the text becomes too wide."),
+ FALSE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_CURSOR_POSITION,
+ g_param_spec_int ("cursor_position",
+ _("Cursor Position"),
+ _("The current position of the insertion cursor in chars."),
+ 0,
+ G_MAXINT,
+ 0,
+ G_PARAM_READABLE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SELECTION_BOUND,
+ g_param_spec_int ("selection_bound",
+ _("Selection Bound"),
+ _("The position of the opposite end of the selection from the cursor in chars."),
+ 0,
+ G_MAXINT,
+ 0,
+ G_PARAM_READABLE));
+
+ /*
+ * Key bindings
+ */
+
+ binding_set = gtk_binding_set_by_class (class);
+
+ /* Moving the insertion point */
+ add_move_binding (binding_set, GDK_Right, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_Left, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_KP_Right, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Left, 0,
+ GTK_MOVEMENT_VISUAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
+
+ add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
+
+ add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
+ GTK_MOVEMENT_WORDS, 1);
+
+ add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
+ GTK_MOVEMENT_WORDS, -1);
+
+ add_move_binding (binding_set, GDK_Home, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_End, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Home, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_End, 0,
+ GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, -1);
+
+ add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
+ GTK_MOVEMENT_BUFFER_ENDS, 1);
+
+ add_move_binding (binding_set, GDK_Up, 0,
+ GTK_MOVEMENT_DISPLAY_LINES, -1);
+
+ add_move_binding (binding_set, GDK_KP_Up, 0,
+ GTK_MOVEMENT_DISPLAY_LINES, -1);
+
+ add_move_binding (binding_set, GDK_Down, 0,
+ GTK_MOVEMENT_DISPLAY_LINES, 1);
+
+ add_move_binding (binding_set, GDK_KP_Down, 0,
+ GTK_MOVEMENT_DISPLAY_LINES, 1);
+
+ /* Select all
+ */
+ gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
+ "move_cursor", 3,
+ GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
+ G_TYPE_INT, -1,
+ G_TYPE_BOOLEAN, FALSE);
+ gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
+ "move_cursor", 3,
+ GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
+ G_TYPE_INT, 1,
+ G_TYPE_BOOLEAN, TRUE);
+
+ /* Deleting text */
+ gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_CHARS,
+ G_TYPE_INT, 1);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_CHARS,
+ G_TYPE_INT, 1);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_CHARS,
+ G_TYPE_INT, -1);
+
+ /* Make this do the same as Backspace, to help with mis-typing */
+ gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_SHIFT_MASK,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_CHARS,
+ G_TYPE_INT, -1);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
+ G_TYPE_INT, 1);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
+ G_TYPE_INT, 1);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
+ "delete_from_cursor", 2,
+ G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
+ G_TYPE_INT, -1);
+
+ /* Cut/copy/paste */
+
+ gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
+ "cut_clipboard", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
+ "copy_clipboard", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
+ "paste_clipboard", 0);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_SHIFT_MASK,
+ "cut_clipboard", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_Insert, GDK_CONTROL_MASK,
+ "copy_clipboard", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_Insert, GDK_SHIFT_MASK,
+ "paste_clipboard", 0);
+
+ /* Overwrite */
+ gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
+ "toggle_overwrite", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_KP_Insert, 0,
+ "toggle_overwrite", 0);
+}
+
+static void
+eel_editable_label_editable_init (GtkEditableClass *iface)
+{
+ iface->do_insert_text = editable_insert_text_emit;
+ iface->do_delete_text = editable_delete_text_emit;
+ iface->insert_text = editable_insert_text;
+ iface->delete_text = editable_delete_text;
+ iface->get_chars = editable_get_chars;
+ iface->set_selection_bounds = editable_set_selection_bounds;
+ iface->get_selection_bounds = editable_get_selection_bounds;
+ iface->set_position = editable_real_set_position;
+ iface->get_position = editable_get_position;
+}
+
+
+static void
+eel_editable_label_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EelEditableLabel *label;
+
+ label = EEL_EDITABLE_LABEL (object);
+
+ switch (prop_id)
+ {
+ case PROP_TEXT:
+ eel_editable_label_set_text (label, g_value_get_string (value));
+ break;
+ case PROP_JUSTIFY:
+ eel_editable_label_set_justify (label, g_value_get_enum (value));
+ break;
+ case PROP_WRAP:
+ eel_editable_label_set_line_wrap (label, g_value_get_boolean (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+eel_editable_label_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EelEditableLabel *label;
+ gint offset;
+
+ label = EEL_EDITABLE_LABEL (object);
+
+ switch (prop_id)
+ {
+ case PROP_TEXT:
+ g_value_set_string (value, label->text);
+ break;
+ case PROP_JUSTIFY:
+ g_value_set_enum (value, label->jtype);
+ break;
+ case PROP_WRAP:
+ g_value_set_boolean (value, label->wrap);
+ break;
+ case PROP_CURSOR_POSITION:
+ offset = g_utf8_pointer_to_offset (label->text,
+ label->text + label->selection_end);
+ g_value_set_int (value, offset);
+ break;
+ case PROP_SELECTION_BOUND:
+ offset = g_utf8_pointer_to_offset (label->text,
+ label->text + label->selection_anchor);
+ g_value_set_int (value, offset);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+eel_editable_label_init (EelEditableLabel *label)
+{
+ label->jtype = GTK_JUSTIFY_LEFT;
+ label->wrap = FALSE;
+ label->wrap_mode = PANGO_WRAP_WORD;
+
+ label->layout = NULL;
+ label->text_size = 1;
+ label->text = g_malloc (label->text_size);
+ label->text[0] = '\0';
+ label->n_bytes = 0;
+
+ gtk_widget_set_can_focus (GTK_WIDGET (label), TRUE);
+
+ /* This object is completely private. No external entity can gain a reference
+ * to it; so we create it here and destroy it in finalize().
+ */
+ label->im_context = gtk_im_multicontext_new ();
+
+ g_signal_connect (G_OBJECT (label->im_context), "commit",
+ G_CALLBACK (eel_editable_label_commit_cb), label);
+ g_signal_connect (G_OBJECT (label->im_context), "preedit_changed",
+ G_CALLBACK (eel_editable_label_preedit_changed_cb), label);
+ g_signal_connect (G_OBJECT (label->im_context), "retrieve_surrounding",
+ G_CALLBACK (eel_editable_label_retrieve_surrounding_cb), label);
+ g_signal_connect (G_OBJECT (label->im_context), "delete_surrounding",
+ G_CALLBACK (eel_editable_label_delete_surrounding_cb), label);
+}
+
+/**
+ * eel_editable_label_new:
+ * @str: The text of the label
+ *
+ * Creates a new label with the given text inside it. You can
+ * pass %NULL to get an empty label widget.
+ *
+ * Return value: the new #EelEditableLabel
+ **/
+GtkWidget*
+eel_editable_label_new (const gchar *str)
+{
+ EelEditableLabel *label;
+
+ label = g_object_new (EEL_TYPE_EDITABLE_LABEL, NULL);
+
+ if (str && *str)
+ eel_editable_label_set_text (label, str);
+
+ return GTK_WIDGET (label);
+}
+
+/**
+ * eel_editable_label_set_text:
+ * @label: a #EelEditableLabel
+ * @str: The text you want to set.
+ *
+ * Sets the text within the #EelEditableLabel widget. It overwrites any text that
+ * was there before.
+ *
+ * This will also clear any previously set mnemonic accelerators.
+ **/
+void
+eel_editable_label_set_text (EelEditableLabel *label,
+ const gchar *str)
+{
+ GtkEditable *editable;
+ int tmp_pos;
+
+ g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
+ g_return_if_fail (str != NULL);
+
+ if (strcmp (label->text, str) == 0)
+ return;
+
+ editable = GTK_EDITABLE (label);
+ gtk_editable_delete_text (editable, 0, -1);
+ tmp_pos = 0;
+ gtk_editable_insert_text (editable, str, strlen (str), &tmp_pos);
+}
+
+/**
+ * eel_editable_label_get_text:
+ * @label: a #EelEditableLabel
+ *
+ * Fetches the text from a label widget, as displayed on the
+ * screen. This does not include any embedded underlines
+ * indicating mnemonics or Pango markup. (See eel_editable_label_get_label())
+ *
+ * Return value: the text in the label widget. This is the internal
+ * string used by the label, and must not be modified.
+ **/
+const gchar* eel_editable_label_get_text(EelEditableLabel* label)
+{
+ g_return_val_if_fail(EEL_IS_EDITABLE_LABEL(label), NULL);
+
+ return label->text;
+}
+
+/**
+ * eel_editable_label_set_justify:
+ * @label: a #EelEditableLabel
+ * @jtype: a #GtkJustification
+ *
+ * Sets the alignment of the lines in the text of the label relative to
+ * each other. %GTK_JUSTIFY_LEFT is the default value when the
+ * widget is first created with eel_editable_label_new(). If you instead want
+ * to set the alignment of the label as a whole, use
+ * gtk_misc_set_alignment() instead. eel_editable_label_set_justify() has no
+ * effect on labels containing only a single line.
+ **/
+void
+eel_editable_label_set_justify (EelEditableLabel *label,
+ GtkJustification jtype)
+{
+ g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
+ g_return_if_fail (jtype >= GTK_JUSTIFY_LEFT && jtype <= GTK_JUSTIFY_FILL);
+
+ if ((GtkJustification) label->jtype != jtype)
+ {
+ label->jtype = jtype;
+
+ /* No real need to be this drastic, but easier than duplicating the code */
+ eel_editable_label_recompute (label);
+
+ g_object_notify (G_OBJECT (label), "justify");
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+}
+
+/**
+ * eel_editable_label_get_justify:
+ * @label: a #EelEditableLabel
+ *
+ * Returns the justification of the label. See eel_editable_label_set_justify ().
+ *
+ * Return value: #GtkJustification
+ **/
+GtkJustification
+eel_editable_label_get_justify (EelEditableLabel *label)
+{
+ g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), 0);
+
+ return label->jtype;
+}
+
+void
+eel_editable_label_set_draw_outline (EelEditableLabel *label,
+ gboolean draw_outline)
+{
+ draw_outline = draw_outline != FALSE;
+
+ if (label->draw_outline != draw_outline)
+ {
+ label->draw_outline = draw_outline;
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+ }
+
+}
+
+
+/**
+ * eel_editable_label_set_line_wrap:
+ * @label: a #EelEditableLabel
+ * @wrap: the setting
+ *
+ * Toggles line wrapping within the #EelEditableLabel widget. %TRUE makes it break
+ * lines if text exceeds the widget's size. %FALSE lets the text get cut off
+ * by the edge of the widget if it exceeds the widget size.
+ **/
+void
+eel_editable_label_set_line_wrap (EelEditableLabel *label,
+ gboolean wrap)
+{
+ g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
+
+ wrap = wrap != FALSE;
+
+ if (label->wrap != wrap)
+ {
+ label->wrap = wrap;
+ g_object_notify (G_OBJECT (label), "wrap");
+
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+}
+
+
+void
+eel_editable_label_set_line_wrap_mode (EelEditableLabel *label,
+ PangoWrapMode mode)
+{
+ g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
+
+ if (label->wrap_mode != mode)
+ {
+ label->wrap_mode = mode;
+
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+ }
+
+}
+
+
+/**
+ * eel_editable_label_get_line_wrap:
+ * @label: a #EelEditableLabel
+ *
+ * Returns whether lines in the label are automatically wrapped. See eel_editable_label_set_line_wrap ().
+ *
+ * Return value: %TRUE if the lines of the label are automatically wrapped.
+ */
+gboolean
+eel_editable_label_get_line_wrap (EelEditableLabel *label)
+{
+ g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), FALSE);
+
+ return label->wrap;
+}
+
+PangoFontDescription *
+eel_editable_label_get_font_description (EelEditableLabel *label)
+{
+ if (label->font_desc)
+ return pango_font_description_copy (label->font_desc);
+
+ return NULL;
+}
+
+void
+eel_editable_label_set_font_description (EelEditableLabel *label,
+ const PangoFontDescription *desc)
+{
+ if (label->font_desc)
+ pango_font_description_free (label->font_desc);
+
+ if (desc)
+ label->font_desc = pango_font_description_copy (desc);
+ else
+ label->font_desc = NULL;
+
+ eel_editable_label_clear_layout (label);
+}
+
+static void
+eel_editable_label_finalize (GObject *object)
+{
+ EelEditableLabel *label;
+
+ g_assert (EEL_IS_EDITABLE_LABEL (object));
+
+ label = EEL_EDITABLE_LABEL (object);
+
+ if (label->font_desc)
+ {
+ pango_font_description_free (label->font_desc);
+ label->font_desc = NULL;
+ }
+
+ g_object_unref (G_OBJECT (label->im_context));
+ label->im_context = NULL;
+
+ g_free (label->text);
+ label->text = NULL;
+
+ if (label->layout)
+ {
+ g_object_unref (G_OBJECT (label->layout));
+ label->layout = NULL;
+ }
+
+ G_OBJECT_CLASS (eel_editable_label_parent_class)->finalize (object);
+}
+
+static void
+eel_editable_label_clear_layout (EelEditableLabel *label)
+{
+ if (label->layout)
+ {
+ g_object_unref (G_OBJECT (label->layout));
+ label->layout = NULL;
+ }
+}
+
+static void
+eel_editable_label_recompute (EelEditableLabel *label)
+{
+ eel_editable_label_clear_layout (label);
+ eel_editable_label_check_cursor_blink (label);
+}
+
+typedef struct _LabelWrapWidth LabelWrapWidth;
+struct _LabelWrapWidth
+{
+ gint width;
+ PangoFontDescription *font_desc;
+};
+
+static void
+label_wrap_width_free (gpointer data)
+{
+ LabelWrapWidth *wrap_width = data;
+ pango_font_description_free (wrap_width->font_desc);
+ g_free (wrap_width);
+}
+
+static gint
+get_label_wrap_width (EelEditableLabel *label)
+{
+ PangoLayout *layout;
+ GtkStyle *style = gtk_widget_get_style (GTK_WIDGET (label));
+
+ LabelWrapWidth *wrap_width = g_object_get_data (G_OBJECT (style), "gtk-label-wrap-width");
+ if (!wrap_width)
+ {
+ wrap_width = g_new0 (LabelWrapWidth, 1);
+ g_object_set_data_full (G_OBJECT (style), "gtk-label-wrap-width",
+ wrap_width, label_wrap_width_free);
+ }
+
+ if (wrap_width->font_desc && pango_font_description_equal (wrap_width->font_desc, style->font_desc))
+ return wrap_width->width;
+
+ if (wrap_width->font_desc)
+ pango_font_description_free (wrap_width->font_desc);
+
+ wrap_width->font_desc = pango_font_description_copy (style->font_desc);
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (label),
+ "This long string gives a good enough length for any line to have.");
+ pango_layout_get_size (layout, &wrap_width->width, NULL);
+ g_object_unref (layout);
+
+ return wrap_width->width;
+}
+
+static void
+eel_editable_label_ensure_layout (EelEditableLabel *label,
+ gboolean include_preedit)
+{
+ GtkWidget *widget;
+ PangoRectangle logical_rect;
+
+ /* Normalize for comparisons */
+ include_preedit = include_preedit != 0;
+
+ if (label->preedit_length > 0 &&
+ include_preedit != label->layout_includes_preedit)
+ eel_editable_label_clear_layout (label);
+
+ widget = GTK_WIDGET (label);
+
+ if (label->layout == NULL)
+ {
+ gchar *preedit_string = NULL;
+ gint preedit_length = 0;
+ PangoAttrList *preedit_attrs = NULL;
+ PangoAlignment align = PANGO_ALIGN_LEFT; /* Quiet gcc */
+ PangoAttrList *tmp_attrs = pango_attr_list_new ();
+
+ if (include_preedit)
+ {
+ gtk_im_context_get_preedit_string (label->im_context,
+ &preedit_string, &preedit_attrs, NULL);
+ preedit_length = label->preedit_length;
+ }
+
+ if (preedit_length)
+ {
+ GString *tmp_string = g_string_new (NULL);
+
+ g_string_prepend_len (tmp_string, label->text, label->n_bytes);
+ g_string_insert (tmp_string, label->selection_anchor, preedit_string);
+
+ label->layout = gtk_widget_create_pango_layout (widget, tmp_string->str);
+
+ pango_attr_list_splice (tmp_attrs, preedit_attrs,
+ label->selection_anchor, preedit_length);
+
+ g_string_free (tmp_string, TRUE);
+ }
+ else
+ {
+ label->layout = gtk_widget_create_pango_layout (widget, label->text);
+ }
+ label->layout_includes_preedit = include_preedit;
+
+ if (label->font_desc != NULL)
+ pango_layout_set_font_description (label->layout, label->font_desc);
+
+ pango_layout_set_attributes (label->layout, tmp_attrs);
+
+ if (preedit_string)
+ g_free (preedit_string);
+ if (preedit_attrs)
+ pango_attr_list_unref (preedit_attrs);
+ pango_attr_list_unref (tmp_attrs);
+
+ switch (label->jtype)
+ {
+ case GTK_JUSTIFY_LEFT:
+ align = PANGO_ALIGN_LEFT;
+ break;
+ case GTK_JUSTIFY_RIGHT:
+ align = PANGO_ALIGN_RIGHT;
+ break;
+ case GTK_JUSTIFY_CENTER:
+ align = PANGO_ALIGN_CENTER;
+ break;
+ case GTK_JUSTIFY_FILL:
+ /* FIXME: This just doesn't work to do this */
+ align = PANGO_ALIGN_LEFT;
+ pango_layout_set_justify (label->layout, TRUE);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+
+ pango_layout_set_alignment (label->layout, align);
+
+ if (label->wrap)
+ {
+ gint longest_paragraph;
+ gint width, height;
+ gint set_width;
+
+ gtk_widget_get_size_request (widget, &set_width, NULL);
+ if (set_width > 0)
+ pango_layout_set_width (label->layout, set_width * PANGO_SCALE);
+ else
+ {
+ gint wrap_width;
+
+ pango_layout_set_width (label->layout, -1);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ width = logical_rect.width;
+
+ /* Try to guess a reasonable maximum width */
+ longest_paragraph = width;
+
+ wrap_width = get_label_wrap_width (label);
+ width = MIN (width, wrap_width);
+ width = MIN (width,
+ PANGO_SCALE * (gdk_screen_width () + 1) / 2);
+
+ pango_layout_set_width (label->layout, width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+ width = logical_rect.width;
+ height = logical_rect.height;
+
+ /* Unfortunately, the above may leave us with a very unbalanced looking paragraph,
+ * so we try short search for a narrower width that leaves us with the same height
+ */
+ if (longest_paragraph > 0)
+ {
+ gint nlines, perfect_width;
+
+ nlines = pango_layout_get_line_count (label->layout);
+ perfect_width = (longest_paragraph + nlines - 1) / nlines;
+
+ if (perfect_width < width)
+ {
+ pango_layout_set_width (label->layout, perfect_width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ if (logical_rect.height <= height)
+ width = logical_rect.width;
+ else
+ {
+ gint mid_width = (perfect_width + width) / 2;
+
+ if (mid_width > perfect_width)
+ {
+ pango_layout_set_width (label->layout, mid_width);
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ if (logical_rect.height <= height)
+ width = logical_rect.width;
+ }
+ }
+ }
+ }
+ pango_layout_set_width (label->layout, width);
+ }
+ pango_layout_set_wrap (label->layout, label->wrap_mode);
+ }
+ else /* !label->wrap */
+ pango_layout_set_width (label->layout, -1);
+ }
+}
+
+static void
+eel_editable_label_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ EelEditableLabel *label;
+ gint width, height;
+ PangoRectangle logical_rect;
+ gint set_width;
+ gfloat xpad, ypad;
+
+ g_assert (EEL_IS_EDITABLE_LABEL (widget));
+ g_assert (requisition != NULL);
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ /*
+ * If word wrapping is on, then the height requisition can depend
+ * on:
+ *
+ * - Any width set on the widget via gtk_widget_set_size_request().
+ * - The padding of the widget (xpad, set by gtk_misc_set_padding)
+ *
+ * Instead of trying to detect changes to these quantities, if we
+ * are wrapping, we just rewrap for each size request. Since
+ * size requisitions are cached by the GTK+ core, this is not
+ * expensive.
+ */
+
+ if (label->wrap)
+ eel_editable_label_recompute (label);
+
+ eel_editable_label_ensure_layout (label, TRUE);
+
+ gtk_misc_get_alignment (&label->misc,
+ &xpad, &ypad);
+ width = xpad * 2;
+ height = ypad * 2;
+
+ pango_layout_get_extents (label->layout, NULL, &logical_rect);
+
+ gtk_widget_get_size_request (widget, &set_width, NULL);
+ if (label->wrap && set_width > 0)
+ width += set_width;
+ else
+ width += PANGO_PIXELS (logical_rect.width);
+
+ height += PANGO_PIXELS (logical_rect.height);
+
+ requisition->width = width;
+ requisition->height = height;
+}
+
+static void
+eel_editable_label_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ (* GTK_WIDGET_CLASS (eel_editable_label_parent_class)->size_allocate) (widget, allocation);
+}
+
+static void
+eel_editable_label_state_changed (GtkWidget *widget,
+ GtkStateType prev_state)
+{
+ EelEditableLabel *label;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ eel_editable_label_select_region (label, 0, 0);
+
+ if (GTK_WIDGET_CLASS (eel_editable_label_parent_class)->state_changed)
+ GTK_WIDGET_CLASS (eel_editable_label_parent_class)->state_changed (widget, prev_state);
+}
+
+static void
+eel_editable_label_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ EelEditableLabel *label;
+ static GdkColor gray = { 0, 0x8888, 0x8888, 0x8888 };
+
+ g_assert (EEL_IS_EDITABLE_LABEL (widget));
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ /* We have to clear the layout, fonts etc. may have changed */
+ eel_editable_label_recompute (label);
+
+ /* Set the background, foreground and cursor colors based on
+ * the new theme selected.
+ */
+ if (gtk_widget_get_realized (widget))
+ {
+ GtkStyle *style;
+
+ style = gtk_widget_get_style (widget);
+ gdk_window_set_background (gtk_widget_get_window (widget), &style->base[gtk_widget_get_state (widget)]);
+
+ if (label->primary_cursor_gc != NULL)
+ {
+ gtk_gc_release (label->primary_cursor_gc);
+ label->primary_cursor_gc = NULL;
+ }
+
+ if (label->secondary_cursor_gc != NULL)
+ {
+ gtk_gc_release (label->secondary_cursor_gc);
+ label->secondary_cursor_gc = NULL;
+ }
+
+ label->primary_cursor_gc = make_cursor_gc (widget,
+ "cursor-color",
+ &style->black);
+
+ label->secondary_cursor_gc = make_cursor_gc (widget,
+ "secondary-cursor-color",
+ &gray);
+ }
+}
+
+static void
+eel_editable_label_direction_changed (GtkWidget *widget,
+ GtkTextDirection previous_dir)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
+
+ if (label->layout)
+ pango_layout_context_changed (label->layout);
+
+ GTK_WIDGET_CLASS (eel_editable_label_parent_class)->direction_changed (widget, previous_dir);
+}
+
+static void
+get_layout_location (EelEditableLabel *label,
+ gint *xp,
+ gint *yp)
+{
+ GtkMisc *misc;
+ GtkWidget *widget;
+ gfloat xalign, yalign;
+ GtkRequisition req;
+ gint x, y, xpad, ypad;
+ GtkAllocation allocation;
+
+ misc = GTK_MISC (label);
+ widget = GTK_WIDGET (label);
+ gtk_misc_get_alignment (misc, &xalign, &yalign);
+
+ if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
+ xalign = 1.0 - xalign;
+
+ gtk_widget_get_child_requisition (widget, &req);
+ gtk_misc_get_padding (misc, &xpad, &ypad);
+
+ gtk_widget_get_allocation (widget, &allocation);
+ x = floor (xpad
+ + ((allocation.width - req.width) * xalign)
+ + 0.5);
+
+ y = floor (ypad
+ + ((allocation.height - req.height) * yalign)
+ + 0.5);
+
+ if (xp)
+ *xp = x;
+
+ if (yp)
+ *yp = y;
+}
+
+static void
+eel_editable_label_get_cursor_pos (EelEditableLabel *label,
+ PangoRectangle *strong_pos,
+ PangoRectangle *weak_pos)
+{
+ const gchar *text;
+ const gchar *preedit_text;
+ gint index;
+
+ eel_editable_label_ensure_layout (label, TRUE);
+
+ text = pango_layout_get_text (label->layout);
+ preedit_text = text + label->selection_anchor;
+ index = label->selection_anchor +
+ g_utf8_offset_to_pointer (preedit_text, label->preedit_cursor) - preedit_text;
+
+ pango_layout_get_cursor_pos (label->layout, index, strong_pos, weak_pos);
+}
+
+/* Copied from gtkutil private function */
+static gboolean
+eel_editable_label_get_block_cursor_location (EelEditableLabel *label,
+ gint *index,
+ PangoRectangle *pos,
+ gboolean *at_line_end)
+{
+ const gchar *text;
+ const gchar *preedit_text;
+ PangoLayoutLine *layout_line;
+ PangoRectangle strong_pos, weak_pos;
+ gint line_no;
+ gboolean rtl;
+ PangoContext *context;
+ PangoFontMetrics *metrics;
+ const PangoFontDescription *font_desc;
+
+ eel_editable_label_ensure_layout (label, TRUE);
+
+ text = pango_layout_get_text (label->layout);
+ preedit_text = text + label->selection_anchor;
+ text = g_utf8_offset_to_pointer (preedit_text, label->preedit_cursor);
+ index[0] = label->selection_anchor + text - preedit_text;
+
+ pango_layout_index_to_pos (label->layout, index[0], pos);
+
+ index[1] = label->selection_anchor + g_utf8_next_char (text) - preedit_text;
+
+ if (pos->width != 0)
+ {
+ if (at_line_end)
+ *at_line_end = FALSE;
+ if (pos->width < 0) /* RTL char, shift x value back to top left of rect */
+ {
+ pos->x += pos->width;
+ pos->width = -pos->width;
+ }
+ return TRUE;
+ }
+
+ pango_layout_index_to_line_x (label->layout, index[0], FALSE, &line_no, NULL);
+ layout_line = pango_layout_get_line_readonly (label->layout, line_no);
+ if (layout_line == NULL)
+ return FALSE;
+
+ text = pango_layout_get_text (label->layout);
+ if (index[0] < layout_line->start_index + layout_line->length)
+ {
+ /* this may be a zero-width character in the middle of the line,
+ * or it could be a character where line is wrapped, we do want
+ * block cursor in latter case */
+ if (g_utf8_next_char (text + index[0]) - text !=
+ layout_line->start_index + layout_line->length)
+ {
+ /* zero-width character in the middle of the line, do not
+ * bother with block cursor */
+ return FALSE;
+ }
+ }
+
+ /* Cursor is at the line end. It may be an empty line, or it could
+ * be on the left or on the right depending on text direction, or it
+ * even could be in the middle of visual layout in bidi text. */
+
+ pango_layout_get_cursor_pos (label->layout, index[0], &strong_pos, &weak_pos);
+
+ if (strong_pos.x != weak_pos.x)
+ {
+ /* do not show block cursor in this case, since the character typed
+ * in may or may not appear at the cursor position */
+ return FALSE;
+ }
+
+ context = pango_layout_get_context (label->layout);
+
+ /* In case when index points to the end of line, pos->x is always most right
+ * pixel of the layout line, so we need to correct it for RTL text. */
+ if (layout_line->length)
+ {
+ if (layout_line->resolved_dir == PANGO_DIRECTION_RTL)
+ {
+ PangoLayoutIter *iter;
+ PangoRectangle line_rect;
+ gint i;
+ gint left, right;
+ const gchar *p;
+
+ p = g_utf8_prev_char (text + index[0]);
+
+ pango_layout_line_index_to_x (layout_line, p - text, FALSE, &left);
+ pango_layout_line_index_to_x (layout_line, p - text, TRUE, &right);
+ pos->x = MIN (left, right);
+
+ iter = pango_layout_get_iter (label->layout);
+ for (i = 0; i < line_no; i++)
+ pango_layout_iter_next_line (iter);
+ pango_layout_iter_get_line_extents (iter, NULL, &line_rect);
+ pango_layout_iter_free (iter);
+
+ rtl = TRUE;
+ pos->x += line_rect.x;
+ }
+ else
+ rtl = FALSE;
+ }
+ else
+ {
+ rtl = pango_context_get_base_dir (context) == PANGO_DIRECTION_RTL;
+ }
+
+ font_desc = pango_layout_get_font_description (label->layout);
+ if (!font_desc)
+ font_desc = pango_context_get_font_description (context);
+
+ metrics = pango_context_get_metrics (context, font_desc, NULL);
+ pos->width = pango_font_metrics_get_approximate_char_width (metrics);
+ pango_font_metrics_unref (metrics);
+
+ if (rtl)
+ pos->x -= pos->width - 1;
+
+ if (at_line_end)
+ *at_line_end = TRUE;
+
+ return pos->width != 0;
+}
+
+
+/* These functions are copies from gtk+, as they are not exported from gtk+ */
+
+static GdkGC *
+make_cursor_gc (GtkWidget *widget,
+ const gchar *property_name,
+ GdkColor *fallback)
+{
+ GdkGCValues gc_values;
+ GdkGCValuesMask gc_values_mask;
+ GdkColor *cursor_color;
+ GtkStyle *style;
+
+ style = gtk_widget_get_style (widget);
+ gtk_widget_style_get (widget, property_name, &cursor_color, NULL);
+
+ gc_values_mask = GDK_GC_FOREGROUND;
+ if (cursor_color)
+ {
+ gc_values.foreground = *cursor_color;
+ gdk_color_free (cursor_color);
+ }
+ else
+ gc_values.foreground = *fallback;
+
+ gdk_rgb_find_color (style->colormap, &gc_values.foreground);
+ return gtk_gc_get (style->depth, style->colormap, &gc_values, gc_values_mask);
+}
+
+static void
+_eel_draw_insertion_cursor (GtkWidget *widget,
+ GdkDrawable *drawable,
+ GdkGC *gc,
+ GdkRectangle *location,
+ GtkTextDirection direction,
+ gboolean draw_arrow)
+{
+ gint stem_width;
+ gint arrow_width;
+ gint x, y;
+ gint i;
+ gfloat cursor_aspect_ratio;
+ gint offset;
+
+ g_assert (direction != GTK_TEXT_DIR_NONE);
+
+ gtk_widget_style_get (widget, "cursor-aspect-ratio", &cursor_aspect_ratio, NULL);
+
+ stem_width = location->height * cursor_aspect_ratio + 1;
+ arrow_width = stem_width + 1;
+
+ /* put (stem_width % 2) on the proper side of the cursor */
+ if (direction == GTK_TEXT_DIR_LTR)
+ offset = stem_width / 2;
+ else
+ offset = stem_width - stem_width / 2;
+
+ for (i = 0; i < stem_width; i++)
+ gdk_draw_line (drawable, gc,
+ location->x + i - offset, location->y,
+ location->x + i - offset, location->y + location->height - 1);
+
+ if (draw_arrow)
+ {
+ if (direction == GTK_TEXT_DIR_RTL)
+ {
+ x = location->x - offset - 1;
+ y = location->y + location->height - arrow_width * 2 - arrow_width + 1;
+
+ for (i = 0; i < arrow_width; i++)
+ {
+ gdk_draw_line (drawable, gc,
+ x, y + i + 1,
+ x, y + 2 * arrow_width - i - 1);
+ x --;
+ }
+ }
+ else if (direction == GTK_TEXT_DIR_LTR)
+ {
+ x = location->x + stem_width - offset;
+ y = location->y + location->height - arrow_width * 2 - arrow_width + 1;
+
+ for (i = 0; i < arrow_width; i++)
+ {
+ gdk_draw_line (drawable, gc,
+ x, y + i + 1,
+ x, y + 2 * arrow_width - i - 1);
+ x++;
+ }
+ }
+ }
+}
+
+static void
+eel_editable_label_draw_cursor (EelEditableLabel *label, gint xoffset, gint yoffset)
+{
+ if (gtk_widget_is_drawable (GTK_WIDGET (label)))
+ {
+ GtkWidget *widget = GTK_WIDGET (label);
+
+ GtkTextDirection keymap_direction;
+ GtkTextDirection widget_direction;
+ gboolean split_cursor;
+ gboolean block;
+ gboolean block_at_line_end;
+ gint range[2];
+ PangoRectangle strong_pos, weak_pos;
+ PangoRectangle *cursor1 = NULL;
+ PangoRectangle *cursor2 = NULL;
+ GdkRectangle cursor_location;
+ GtkTextDirection dir1 = GTK_TEXT_DIR_NONE;
+ GtkTextDirection dir2 = GTK_TEXT_DIR_NONE;
+
+ keymap_direction =
+ (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
+ GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+
+ widget_direction = gtk_widget_get_direction (widget);
+
+ if (label->overwrite_mode &&
+ eel_editable_label_get_block_cursor_location (label, range,
+ &strong_pos,
+ &block_at_line_end))
+ block = TRUE;
+ else
+ block = FALSE;
+
+ if (!block)
+ {
+ eel_editable_label_get_cursor_pos (label, &strong_pos, &weak_pos);
+
+ g_object_get (gtk_widget_get_settings (widget),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ dir1 = widget_direction;
+
+ if (split_cursor)
+ {
+ cursor1 = &strong_pos;
+
+ if (strong_pos.x != weak_pos.x ||
+ strong_pos.y != weak_pos.y)
+ {
+ dir2 = (widget_direction == GTK_TEXT_DIR_LTR) ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR;
+ cursor2 = &weak_pos;
+ }
+ }
+ else
+ {
+ if (keymap_direction == widget_direction)
+ cursor1 = &strong_pos;
+ else
+ cursor1 = &weak_pos;
+ }
+
+ cursor_location.x = xoffset + PANGO_PIXELS (cursor1->x);
+ cursor_location.y = yoffset + PANGO_PIXELS (cursor1->y);
+ cursor_location.width = 0;
+ cursor_location.height = PANGO_PIXELS (cursor1->height);
+
+ _eel_draw_insertion_cursor (widget, gtk_widget_get_window (widget),
+ label->primary_cursor_gc,
+ &cursor_location, dir1,
+ dir2 != GTK_TEXT_DIR_NONE);
+
+ if (dir2 != GTK_TEXT_DIR_NONE)
+ {
+ cursor_location.x = xoffset + PANGO_PIXELS (cursor2->x);
+ cursor_location.y = yoffset + PANGO_PIXELS (cursor2->y);
+ cursor_location.width = 0;
+ cursor_location.height = PANGO_PIXELS (cursor2->height);
+
+ _eel_draw_insertion_cursor (widget, gtk_widget_get_window (widget),
+ label->secondary_cursor_gc,
+ &cursor_location, dir2, TRUE);
+ }
+ }
+ else /* Block cursor */
+ {
+ GdkRegion *clip;
+
+ gdk_draw_rectangle (gtk_widget_get_window (widget), label->primary_cursor_gc, TRUE,
+ xoffset + PANGO_PIXELS (strong_pos.x),
+ yoffset + PANGO_PIXELS (strong_pos.y),
+ PANGO_PIXELS (strong_pos.width),
+ PANGO_PIXELS (strong_pos.height));
+
+ if (!block_at_line_end)
+ {
+ clip = gdk_pango_layout_get_clip_region (label->layout,
+ xoffset, yoffset,
+ range, 1);
+
+ /* FIXME should use gtk_paint, but it can't use a clip
+ * region
+ */
+
+ gdk_gc_set_clip_region (label->primary_cursor_gc, clip);
+
+ gdk_draw_layout_with_colors (gtk_widget_get_window (widget),
+ label->primary_cursor_gc,
+ xoffset, yoffset,
+ label->layout,
+ &gtk_widget_get_style (widget)->base[GTK_STATE_NORMAL],
+ NULL);
+
+ gdk_gc_set_clip_region (label->primary_cursor_gc, NULL);
+ gdk_region_destroy (clip);
+ }
+ }
+ }
+}
+
+
+static gint
+eel_editable_label_expose (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ EelEditableLabel *label;
+ GtkStyle *style;
+ gint x, y;
+
+ g_assert (EEL_IS_EDITABLE_LABEL (widget));
+ g_assert (event != NULL);
+
+ label = EEL_EDITABLE_LABEL (widget);
+ style = gtk_widget_get_style (widget);
+
+ eel_editable_label_ensure_layout (label, TRUE);
+
+ if (gtk_widget_get_visible (widget) && gtk_widget_get_mapped (widget) &&
+ label->text)
+ {
+ get_layout_location (label, &x, &y);
+
+ gtk_paint_layout (style,
+ gtk_widget_get_window (widget),
+ gtk_widget_get_state (widget),
+ TRUE,
+ &event->area,
+ widget,
+ "label",
+ x, y,
+ label->layout);
+
+ if (label->selection_anchor != label->selection_end)
+ {
+ gint range[2];
+ const char *text;
+ GdkRegion *clip;
+ GtkStateType state;
+
+ range[0] = label->selection_anchor;
+ range[1] = label->selection_end;
+
+ /* Handle possible preedit string */
+ if (label->preedit_length > 0 &&
+ range[1] > label->selection_anchor)
+ {
+ text = pango_layout_get_text (label->layout) + label->selection_anchor;
+ range[1] += g_utf8_offset_to_pointer (text, label->preedit_length) - text;
+ }
+
+ if (range[0] > range[1])
+ {
+ gint tmp = range[0];
+ range[0] = range[1];
+ range[1] = tmp;
+ }
+
+ clip = gdk_pango_layout_get_clip_region (label->layout,
+ x, y,
+ range,
+ 1);
+
+ /* FIXME should use gtk_paint, but it can't use a clip
+ * region
+ */
+
+ gdk_gc_set_clip_region (style->black_gc, clip);
+
+
+ state = GTK_STATE_SELECTED;
+ if (!gtk_widget_has_focus (widget))
+ state = GTK_STATE_ACTIVE;
+
+ gdk_draw_layout_with_colors (gtk_widget_get_window (widget),
+ style->black_gc,
+ x, y,
+ label->layout,
+ &style->text[state],
+ &style->base[state]);
+
+ gdk_gc_set_clip_region (style->black_gc, NULL);
+ gdk_region_destroy (clip);
+ }
+ else if (gtk_widget_has_focus (widget))
+ eel_editable_label_draw_cursor (label, x, y);
+
+ if (label->draw_outline)
+ {
+ GtkAllocation allocation;
+ gtk_widget_get_allocation (widget, &allocation);
+ gdk_draw_rectangle (gtk_widget_get_window (widget),
+ style->text_gc [gtk_widget_get_state (widget)],
+ FALSE,
+ 0, 0,
+ allocation.width - 1,
+ allocation.height - 1);
+ }
+ }
+
+ return FALSE;
+}
+
+static void
+eel_editable_label_realize (GtkWidget *widget)
+{
+ EelEditableLabel *label;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+ static GdkColor gray = { 0, 0x8888, 0x8888, 0x8888 };
+ GtkAllocation allocation;
+ GdkWindow *window;
+ GtkStyle *style;
+
+ gtk_widget_set_realized (widget, TRUE);
+ label = EEL_EDITABLE_LABEL (widget);
+ gtk_widget_get_allocation (widget, &allocation);
+
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.x = allocation.x;
+ attributes.y = allocation.y;
+ attributes.width = allocation.width;
+ attributes.height = allocation.height;
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.colormap = gtk_widget_get_colormap (widget);
+ attributes.cursor = gdk_cursor_new (GDK_XTERM);
+ attributes.event_mask = gtk_widget_get_events (widget) |
+ (GDK_EXPOSURE_MASK |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_BUTTON1_MOTION_MASK |
+ GDK_BUTTON3_MOTION_MASK |
+ GDK_POINTER_MOTION_HINT_MASK |
+ GDK_POINTER_MOTION_MASK |
+ GDK_ENTER_NOTIFY_MASK |
+ GDK_LEAVE_NOTIFY_MASK);
+
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP | GDK_WA_CURSOR;
+
+ window = gdk_window_new (gtk_widget_get_parent_window (widget),
+ &attributes, attributes_mask);
+ gtk_widget_set_window (widget, window);
+ gdk_window_set_user_data (window, widget);
+
+ gdk_cursor_unref (attributes.cursor);
+
+ style = gtk_style_attach (gtk_widget_get_style (widget) , gtk_widget_get_window (widget));
+ gtk_widget_set_style (widget, style);
+
+ gdk_window_set_background (gtk_widget_get_window (widget), &style->base[gtk_widget_get_state (widget)]);
+
+ gtk_im_context_set_client_window (label->im_context, gtk_widget_get_window (widget));
+
+ label->primary_cursor_gc = make_cursor_gc (widget,
+ "cursor-color",
+ &style->black);
+
+ label->secondary_cursor_gc = make_cursor_gc (widget,
+ "secondary-cursor-color",
+ &gray);
+}
+
+static void
+eel_editable_label_unrealize (GtkWidget *widget)
+{
+ EelEditableLabel *label;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ gtk_gc_release (label->primary_cursor_gc);
+ label->primary_cursor_gc = NULL;
+
+ gtk_gc_release (label->secondary_cursor_gc);
+ label->secondary_cursor_gc = NULL;
+
+ /* Strange. Copied from GtkEntry, should be NULL? */
+ gtk_im_context_set_client_window (label->im_context, NULL);
+
+ (* GTK_WIDGET_CLASS (eel_editable_label_parent_class)->unrealize) (widget);
+}
+
+static void
+eel_editable_label_map (GtkWidget *widget)
+{
+ (* GTK_WIDGET_CLASS (eel_editable_label_parent_class)->map) (widget);
+}
+
+static void
+eel_editable_label_unmap (GtkWidget *widget)
+{
+ (* GTK_WIDGET_CLASS (eel_editable_label_parent_class)->unmap) (widget);
+}
+
+static void
+window_to_layout_coords (EelEditableLabel *label,
+ gint *x,
+ gint *y)
+{
+ gint lx, ly;
+
+ /* get layout location in gtk_widget_get_window (widget) coords */
+ get_layout_location (label, &lx, &ly);
+
+ if (x)
+ *x -= lx; /* go to layout */
+
+ if (y)
+ *y -= ly; /* go to layout */
+}
+
+static void
+get_layout_index (EelEditableLabel *label,
+ gint x,
+ gint y,
+ gint *index)
+{
+ gint trailing = 0;
+ const gchar *cluster;
+ const gchar *cluster_end;
+
+ *index = 0;
+
+ eel_editable_label_ensure_layout (label, TRUE);
+
+ window_to_layout_coords (label, &x, &y);
+
+ x *= PANGO_SCALE;
+ y *= PANGO_SCALE;
+
+ pango_layout_xy_to_index (label->layout,
+ x, y,
+ index, &trailing);
+
+ if (*index >= label->selection_anchor && label->preedit_length)
+ {
+ if (*index >= label->selection_anchor + label->preedit_length)
+ *index -= label->preedit_length;
+ else
+ {
+ *index = label->selection_anchor;
+ trailing = 0;
+ }
+ }
+
+ cluster = label->text + *index;
+ cluster_end = cluster;
+ while (trailing)
+ {
+ cluster_end = g_utf8_next_char (cluster_end);
+ --trailing;
+ }
+
+ *index += (cluster_end - cluster);
+}
+
+static void
+eel_editable_label_select_word (EelEditableLabel *label)
+{
+ gint min, max;
+
+ gint start_index = eel_editable_label_move_backward_word (label, label->selection_end);
+ gint end_index = eel_editable_label_move_forward_word (label, label->selection_end);
+
+ min = MIN (label->selection_anchor,
+ label->selection_end);
+ max = MAX (label->selection_anchor,
+ label->selection_end);
+
+ min = MIN (min, start_index);
+ max = MAX (max, end_index);
+
+ eel_editable_label_select_region_index (label, min, max);
+}
+
+static gint
+eel_editable_label_button_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EelEditableLabel *label;
+ gint index = 0;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ if (event->button == 1)
+ {
+ if (!gtk_widget_has_focus (widget))
+ gtk_widget_grab_focus (widget);
+
+ if (event->type == GDK_3BUTTON_PRESS)
+ {
+ eel_editable_label_select_region_index (label, 0, strlen (label->text));
+ return TRUE;
+ }
+
+ if (event->type == GDK_2BUTTON_PRESS)
+ {
+ eel_editable_label_select_word (label);
+ return TRUE;
+ }
+
+ get_layout_index (label, event->x, event->y, &index);
+
+ if ((label->selection_anchor !=
+ label->selection_end) &&
+ (event->state & GDK_SHIFT_MASK))
+ {
+ gint min, max;
+
+ /* extend (same as motion) */
+ min = MIN (label->selection_anchor,
+ label->selection_end);
+ max = MAX (label->selection_anchor,
+ label->selection_end);
+
+ min = MIN (min, index);
+ max = MAX (max, index);
+
+ /* ensure the anchor is opposite index */
+ if (index == min)
+ {
+ gint tmp = min;
+ min = max;
+ max = tmp;
+ }
+
+ eel_editable_label_select_region_index (label, min, max);
+ }
+ else
+ {
+ if (event->type == GDK_3BUTTON_PRESS)
+ eel_editable_label_select_region_index (label, 0, strlen (label->text));
+ else if (event->type == GDK_2BUTTON_PRESS)
+ eel_editable_label_select_word (label);
+ else
+ /* start a replacement */
+ eel_editable_label_select_region_index (label, index, index);
+ }
+
+ return TRUE;
+ }
+ else if (event->button == 2 && event->type == GDK_BUTTON_PRESS)
+ {
+ get_layout_index (label, event->x, event->y, &index);
+
+ eel_editable_label_select_region_index (label, index, index);
+ eel_editable_label_paste (label, GDK_SELECTION_PRIMARY);
+
+ return TRUE;
+ }
+ else if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
+ {
+ eel_editable_label_do_popup (label, event);
+
+ return TRUE;
+
+ }
+ return FALSE;
+}
+
+static gint
+eel_editable_label_button_release (GtkWidget *widget,
+ GdkEventButton *event)
+
+{
+ if (event->button != 1)
+ return FALSE;
+
+ /* The goal here is to return TRUE iff we ate the
+ * button press to start selecting.
+ */
+
+ return TRUE;
+}
+
+static gint
+eel_editable_label_motion (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ EelEditableLabel *label;
+ gint index;
+ gint x, y;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ if ((event->state & GDK_BUTTON1_MASK) == 0)
+ return FALSE;
+
+ gdk_window_get_pointer (gtk_widget_get_window (widget),
+ &x, &y, NULL);
+
+ get_layout_index (label, x, y, &index);
+
+ eel_editable_label_select_region_index (label,
+ label->selection_anchor,
+ index);
+
+ return TRUE;
+}
+
+static void
+get_text_callback (GtkClipboard *clipboard,
+ GtkSelectionData *selection_data,
+ guint info,
+ gpointer user_data_or_owner)
+{
+ EelEditableLabel *label;
+
+ label = EEL_EDITABLE_LABEL (user_data_or_owner);
+
+ if ((label->selection_anchor != label->selection_end) &&
+ label->text)
+ {
+ gint start, end;
+ gint len;
+
+ start = MIN (label->selection_anchor,
+ label->selection_end);
+ end = MAX (label->selection_anchor,
+ label->selection_end);
+
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ gtk_selection_data_set_text (selection_data,
+ label->text + start,
+ end - start);
+ }
+}
+
+static void
+clear_text_callback (GtkClipboard *clipboard,
+ gpointer user_data_or_owner)
+{
+ EelEditableLabel *label;
+
+ label = EEL_EDITABLE_LABEL (user_data_or_owner);
+
+ label->selection_anchor = label->selection_end;
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+}
+
+static void
+eel_editable_label_select_region_index (EelEditableLabel *label,
+ gint anchor_index,
+ gint end_index)
+{
+ GtkClipboard *clipboard;
+
+ g_assert (EEL_IS_EDITABLE_LABEL (label));
+
+
+ if (label->selection_anchor == anchor_index &&
+ label->selection_end == end_index)
+ return;
+
+ eel_editable_label_reset_im_context (label);
+
+ label->selection_anchor = anchor_index;
+ label->selection_end = end_index;
+
+ clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
+
+ if (anchor_index != end_index)
+ {
+ GtkTargetList *list;
+ GtkTargetEntry *targets;
+ guint n_targets;
+
+ list = gtk_target_list_new (NULL, 0);
+ gtk_target_list_add_text_targets (list, 0);
+ targets = gtk_target_table_new_from_list (list, &n_targets);
+
+ gtk_clipboard_set_with_owner (clipboard,
+ targets, n_targets,
+ get_text_callback,
+ clear_text_callback,
+ G_OBJECT (label));
+
+ gtk_clipboard_set_can_store (clipboard, NULL, 0);
+ gtk_target_table_free (targets, n_targets);
+ gtk_target_list_unref (list);
+ }
+ else
+ {
+ if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (label))
+ gtk_clipboard_clear (clipboard);
+ }
+
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+
+ g_object_freeze_notify (G_OBJECT (label));
+ g_object_notify (G_OBJECT (label), "cursor_position");
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ g_object_thaw_notify (G_OBJECT (label));
+}
+
+/**
+ * eel_editable_label_select_region:
+ * @label: a #EelEditableLabel
+ * @start_offset: start offset (in characters not bytes)
+ * @end_offset: end offset (in characters not bytes)
+ *
+ * Selects a range of characters in the label, if the label is selectable.
+ * See eel_editable_label_set_selectable(). If the label is not selectable,
+ * this function has no effect. If @start_offset or
+ * @end_offset are -1, then the end of the label will be substituted.
+ *
+ **/
+void
+eel_editable_label_select_region (EelEditableLabel *label,
+ gint start_offset,
+ gint end_offset)
+{
+ g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
+
+ if (label->text)
+ {
+ if (start_offset < 0)
+ start_offset = g_utf8_strlen (label->text, -1);
+
+ if (end_offset < 0)
+ end_offset = g_utf8_strlen (label->text, -1);
+
+ eel_editable_label_select_region_index (label,
+ g_utf8_offset_to_pointer (label->text, start_offset) - label->text,
+ g_utf8_offset_to_pointer (label->text, end_offset) - label->text);
+ }
+}
+
+/**
+ * eel_editable_label_get_selection_bounds:
+ * @label: a #EelEditableLabel
+ * @start: return location for start of selection, as a character offset
+ * @end: return location for end of selection, as a character offset
+ *
+ * Gets the selected range of characters in the label, returning %TRUE
+ * if there's a selection.
+ *
+ * Return value: %TRUE if selection is non-empty
+ **/
+gboolean
+eel_editable_label_get_selection_bounds (EelEditableLabel *label,
+ gint *start,
+ gint *end)
+{
+ gint start_index, end_index;
+ gint start_offset, end_offset;
+ gint len;
+
+ g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), FALSE);
+
+
+ start_index = MIN (label->selection_anchor,
+ label->selection_end);
+ end_index = MAX (label->selection_anchor,
+ label->selection_end);
+
+ len = strlen (label->text);
+
+ if (end_index > len)
+ end_index = len;
+
+ if (start_index > len)
+ start_index = len;
+
+ start_offset = g_utf8_strlen (label->text, start_index);
+ end_offset = g_utf8_strlen (label->text, end_index);
+
+ if (start_offset > end_offset)
+ {
+ gint tmp = start_offset;
+ start_offset = end_offset;
+ end_offset = tmp;
+ }
+
+ if (start)
+ *start = start_offset;
+
+ if (end)
+ *end = end_offset;
+
+ return start_offset != end_offset;
+}
+
+
+/**
+ * eel_editable_label_get_layout:
+ * @label: a #EelEditableLabel
+ *
+ * Gets the #PangoLayout used to display the label.
+ * The layout is useful to e.g. convert text positions to
+ * pixel positions, in combination with eel_editable_label_get_layout_offsets().
+ * The returned layout is owned by the label so need not be
+ * freed by the caller.
+ *
+ * Return value: the #PangoLayout for this label
+ **/
+PangoLayout*
+eel_editable_label_get_layout (EelEditableLabel *label)
+{
+ g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), NULL);
+
+ eel_editable_label_ensure_layout (label, TRUE);
+
+ return label->layout;
+}
+
+/**
+ * eel_editable_label_get_layout_offsets:
+ * @label: a #EelEditableLabel
+ * @x: location to store X offset of layout, or %NULL
+ * @y: location to store Y offset of layout, or %NULL
+ *
+ * Obtains the coordinates where the label will draw the #PangoLayout
+ * representing the text in the label; useful to convert mouse events
+ * into coordinates inside the #PangoLayout, e.g. to take some action
+ * if some part of the label is clicked. Of course you will need to
+ * create a #GtkEventBox to receive the events, and pack the label
+ * inside it, since labels are a #GTK_NO_WINDOW widget. Remember
+ * when using the #PangoLayout functions you need to convert to
+ * and from pixels using PANGO_PIXELS() or #PANGO_SCALE.
+ *
+ **/
+void
+eel_editable_label_get_layout_offsets (EelEditableLabel *label,
+ gint *x,
+ gint *y)
+{
+ g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
+
+ get_layout_location (label, x, y);
+}
+
+static void
+eel_editable_label_pend_cursor_blink (EelEditableLabel *label)
+{
+ /* TODO */
+}
+
+static void
+eel_editable_label_check_cursor_blink (EelEditableLabel *label)
+{
+ /* TODO */
+}
+
+static gint
+eel_editable_label_key_press (GtkWidget *widget,
+ GdkEventKey *event)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
+
+ eel_editable_label_pend_cursor_blink (label);
+
+ if (gtk_im_context_filter_keypress (label->im_context, event))
+ {
+ /*TODO eel_editable_label_obscure_mouse_cursor (label);*/
+ label->need_im_reset = TRUE;
+ return TRUE;
+ }
+
+ if (GTK_WIDGET_CLASS (eel_editable_label_parent_class)->key_press_event (widget, event))
+ /* Activate key bindings
+ */
+ return TRUE;
+
+ return FALSE;
+}
+
+static gint
+eel_editable_label_key_release (GtkWidget *widget,
+ GdkEventKey *event)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
+
+ if (gtk_im_context_filter_keypress (label->im_context, event))
+ {
+ label->need_im_reset = TRUE;
+ return TRUE;
+ }
+
+ return GTK_WIDGET_CLASS (eel_editable_label_parent_class)->key_release_event (widget, event);
+}
+
+static void
+eel_editable_label_keymap_direction_changed (GdkKeymap *keymap,
+ EelEditableLabel *label)
+{
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+}
+
+static gint
+eel_editable_label_focus_in (GtkWidget *widget,
+ GdkEventFocus *event)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
+
+ gtk_widget_queue_draw (widget);
+
+ label->need_im_reset = TRUE;
+ gtk_im_context_focus_in (label->im_context);
+
+ g_signal_connect (gdk_keymap_get_default (),
+ "direction_changed",
+ G_CALLBACK (eel_editable_label_keymap_direction_changed), label);
+
+ eel_editable_label_check_cursor_blink (label);
+
+ return FALSE;
+}
+
+static gint
+eel_editable_label_focus_out (GtkWidget *widget,
+ GdkEventFocus *event)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
+
+ gtk_widget_queue_draw (widget);
+
+ label->need_im_reset = TRUE;
+ gtk_im_context_focus_out (label->im_context);
+
+ eel_editable_label_check_cursor_blink (label);
+
+ g_signal_handlers_disconnect_by_func (gdk_keymap_get_default (),
+ (gpointer) eel_editable_label_keymap_direction_changed,
+ label);
+
+ return FALSE;
+}
+
+static void
+eel_editable_label_delete_text (EelEditableLabel *label,
+ int start_pos,
+ int end_pos)
+{
+ int anchor, end;
+
+ if (start_pos < 0)
+ start_pos = 0;
+ if (end_pos < 0 || end_pos > label->n_bytes)
+ end_pos = label->n_bytes;
+
+ if (start_pos < end_pos)
+ {
+ g_memmove (label->text + start_pos, label->text + end_pos, label->n_bytes + 1 - end_pos);
+ label->n_bytes -= (end_pos - start_pos);
+
+ anchor = label->selection_anchor;
+ if (anchor > start_pos)
+ anchor -= MIN (anchor, end_pos) - start_pos;
+
+ end = label->selection_end;
+ if (end > start_pos)
+ end -= MIN (end, end_pos) - start_pos;
+
+ /* We might have changed the selection */
+ eel_editable_label_select_region_index (label, anchor, end);
+
+ eel_editable_label_recompute (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+
+ g_object_notify (G_OBJECT (label), "text");
+ g_signal_emit_by_name (GTK_EDITABLE (label), "changed");
+ }
+}
+
+static void
+eel_editable_label_insert_text (EelEditableLabel *label,
+ const gchar *new_text,
+ gint new_text_length,
+ gint *index)
+{
+ if (new_text_length + label->n_bytes + 1 > label->text_size)
+ {
+ while (new_text_length + label->n_bytes + 1 > label->text_size)
+ {
+ if (label->text_size == 0)
+ label->text_size = 16;
+ else
+ label->text_size *= 2;
+ }
+
+ label->text = g_realloc (label->text, label->text_size);
+ }
+
+ g_object_freeze_notify (G_OBJECT (label));
+
+ g_memmove (label->text + *index + new_text_length, label->text + *index, label->n_bytes - *index);
+ memcpy (label->text + *index, new_text, new_text_length);
+
+ label->n_bytes += new_text_length;
+
+ /* NUL terminate for safety and convenience */
+ label->text[label->n_bytes] = '\0';
+
+ g_object_notify (G_OBJECT (label), "text");
+
+ if (label->selection_anchor > *index)
+ {
+ g_object_notify (G_OBJECT (label), "cursor_position");
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ label->selection_anchor += new_text_length;
+ }
+
+ if (label->selection_end > *index)
+ {
+ label->selection_end += new_text_length;
+ g_object_notify (G_OBJECT (label), "selection_bound");
+ }
+
+ *index += new_text_length;
+
+ eel_editable_label_recompute (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+
+ g_object_thaw_notify (G_OBJECT (label));
+ g_signal_emit_by_name (GTK_EDITABLE (label), "changed");
+}
+
+/* Used for im_commit_cb and inserting Unicode chars */
+static void
+eel_editable_label_enter_text (EelEditableLabel *label,
+ const gchar *str)
+{
+ GtkEditable *editable = GTK_EDITABLE (label);
+ gint tmp_pos;
+ gboolean old_need_im_reset;
+
+ /* Never reset the im while commiting, as that resets possible im state */
+ old_need_im_reset = label->need_im_reset;
+ label->need_im_reset = FALSE;
+
+ if (label->selection_end != label->selection_anchor)
+ gtk_editable_delete_selection (editable);
+ else
+ {
+ if (label->overwrite_mode)
+ eel_editable_label_delete_from_cursor (label, GTK_DELETE_CHARS, 1);
+ }
+
+ tmp_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + label->selection_anchor);
+ gtk_editable_insert_text (GTK_EDITABLE (label), str, strlen (str), &tmp_pos);
+ tmp_pos = g_utf8_offset_to_pointer (label->text, tmp_pos) - label->text;
+ eel_editable_label_select_region_index (label, tmp_pos, tmp_pos);
+
+ label->need_im_reset = old_need_im_reset;
+}
+
+/* IM Context Callbacks
+ */
+
+static void
+eel_editable_label_commit_cb (GtkIMContext *context,
+ const gchar *str,
+ EelEditableLabel *label)
+{
+ eel_editable_label_enter_text (label, str);
+}
+
+static void
+eel_editable_label_preedit_changed_cb (GtkIMContext *context,
+ EelEditableLabel *label)
+{
+ gchar *preedit_string;
+ gint cursor_pos;
+
+ gtk_im_context_get_preedit_string (label->im_context,
+ &preedit_string, NULL,
+ &cursor_pos);
+ label->preedit_length = strlen (preedit_string);
+ cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1));
+ label->preedit_cursor = cursor_pos;
+ g_free (preedit_string);
+
+ eel_editable_label_recompute (label);
+ gtk_widget_queue_resize (GTK_WIDGET (label));
+}
+
+static gboolean
+eel_editable_label_retrieve_surrounding_cb (GtkIMContext *context,
+ EelEditableLabel *label)
+{
+ gtk_im_context_set_surrounding (context,
+ label->text,
+ strlen (label->text) + 1,
+ label->selection_end);
+
+ return TRUE;
+}
+
+static gboolean
+eel_editable_label_delete_surrounding_cb (GtkIMContext *slave,
+ gint offset,
+ gint n_chars,
+ EelEditableLabel *label)
+{
+ gint current_pos;
+
+ current_pos = g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
+ gtk_editable_delete_text (GTK_EDITABLE (label),
+ current_pos + offset,
+ current_pos + offset + n_chars);
+
+ return TRUE;
+}
+
+static gboolean
+eel_editable_label_focus (GtkWidget *widget,
+ GtkDirectionType direction)
+{
+ /* We never want to be in the tab chain */
+ return FALSE;
+}
+
+/* Compute the X position for an offset that corresponds to the "more important
+ * cursor position for that offset. We use this when trying to guess to which
+ * end of the selection we should go to when the user hits the left or
+ * right arrow key.
+ */
+static void
+get_better_cursor (EelEditableLabel *label,
+ gint index,
+ gint *x,
+ gint *y)
+{
+ GtkTextDirection keymap_direction =
+ (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
+ GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+ GtkTextDirection widget_direction = gtk_widget_get_direction (GTK_WIDGET (label));
+ gboolean split_cursor;
+ PangoRectangle strong_pos, weak_pos;
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ eel_editable_label_get_cursor_pos (label, &strong_pos, &weak_pos);
+
+ if (split_cursor)
+ {
+ *x = strong_pos.x / PANGO_SCALE;
+ *y = strong_pos.y / PANGO_SCALE;
+ }
+ else
+ {
+ if (keymap_direction == widget_direction)
+ {
+ *x = strong_pos.x / PANGO_SCALE;
+ *y = strong_pos.y / PANGO_SCALE;
+ }
+ else
+ {
+ *x = weak_pos.x / PANGO_SCALE;
+ *y = weak_pos.y / PANGO_SCALE;
+ }
+ }
+}
+
+
+static gint
+eel_editable_label_move_logically (EelEditableLabel *label,
+ gint start,
+ gint count)
+{
+ gint offset = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+
+ if (label->text)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+ gint length;
+
+ eel_editable_label_ensure_layout (label, FALSE);
+
+ length = g_utf8_strlen (label->text, -1);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ while (count > 0 && offset < length)
+ {
+ do
+ offset++;
+ while (offset < length && !log_attrs[offset].is_cursor_position);
+
+ count--;
+ }
+ while (count < 0 && offset > 0)
+ {
+ do
+ offset--;
+ while (offset > 0 && !log_attrs[offset].is_cursor_position);
+
+ count++;
+ }
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, offset) - label->text;
+}
+
+static gint
+eel_editable_label_move_visually (EelEditableLabel *label,
+ gint start,
+ gint count)
+{
+ gint index;
+
+ index = start;
+
+ while (count != 0)
+ {
+ int new_index, new_trailing;
+ gboolean split_cursor;
+ gboolean strong;
+
+ eel_editable_label_ensure_layout (label, FALSE);
+
+ g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
+ "gtk-split-cursor", &split_cursor,
+ NULL);
+
+ if (split_cursor)
+ strong = TRUE;
+ else
+ {
+ GtkTextDirection keymap_direction =
+ (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
+ GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
+
+ strong = keymap_direction == gtk_widget_get_direction (GTK_WIDGET (label));
+ }
+
+ if (count > 0)
+ {
+ pango_layout_move_cursor_visually (label->layout, strong, index, 0, 1, &new_index, &new_trailing);
+ count--;
+ }
+ else
+ {
+ pango_layout_move_cursor_visually (label->layout, strong, index, 0, -1, &new_index, &new_trailing);
+ count++;
+ }
+
+ if (new_index < 0 || new_index == G_MAXINT)
+ break;
+
+ index = new_index;
+
+ while (new_trailing--)
+ index = g_utf8_next_char (label->text + new_index) - label->text;
+ }
+
+ return index;
+}
+
+static gint
+eel_editable_label_move_line (EelEditableLabel *label,
+ gint start,
+ gint count)
+{
+ int n_lines, i;
+ int x;
+ PangoLayoutLine *line;
+ int index;
+
+ eel_editable_label_ensure_layout (label, FALSE);
+
+ n_lines = pango_layout_get_line_count (label->layout);
+
+ for (i = 0; i < n_lines; i++)
+ {
+ line = pango_layout_get_line (label->layout, i);
+ if (start >= line->start_index &&
+ start <= line->start_index + line->length)
+ {
+ pango_layout_line_index_to_x (line, start, FALSE, &x);
+ break;
+ }
+ }
+ if (i == n_lines)
+ i = n_lines - 1;
+
+ i += count;
+ i = CLAMP (i, 0, n_lines - 1);
+
+ line = pango_layout_get_line (label->layout, i);
+ if (pango_layout_line_x_to_index (line,
+ x,
+ &index, NULL))
+ return index;
+ else
+ {
+ if (i == n_lines - 1)
+ return line->start_index + line->length;
+ else
+ return line->start_index + line->length - 1;
+ }
+}
+
+static gint
+eel_editable_label_move_forward_word (EelEditableLabel *label,
+ gint start)
+{
+ gint new_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+ gint length;
+
+ length = g_utf8_strlen (label->text, -1);
+ if (new_pos < length)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+
+ eel_editable_label_ensure_layout (label, FALSE);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ /* Find the next word end,
+ (remember, n_attrs is one more than the number of of chars) */
+ new_pos++;
+ while (new_pos < (n_attrs - 1) && !log_attrs[new_pos].is_word_end)
+ new_pos++;
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
+}
+
+
+static gint
+eel_editable_label_move_backward_word (EelEditableLabel *label,
+ gint start)
+{
+ gint new_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + start);
+
+ if (new_pos > 0)
+ {
+ PangoLogAttr *log_attrs;
+ gint n_attrs;
+
+ eel_editable_label_ensure_layout (label, FALSE);
+
+ pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
+
+ new_pos -= 1;
+
+ /* Find the previous word beginning */
+ while (new_pos > 0 && !log_attrs[new_pos].is_word_start)
+ new_pos--;
+
+ g_free (log_attrs);
+ }
+
+ return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
+}
+
+static void
+eel_editable_label_move_cursor (EelEditableLabel *label,
+ GtkMovementStep step,
+ gint count,
+ gboolean extend_selection)
+{
+ gint new_pos;
+
+ new_pos = label->selection_end;
+
+ if (label->selection_end != label->selection_anchor &&
+ !extend_selection)
+ {
+ /* If we have a current selection and aren't extending it, move to the
+ * start/or end of the selection as appropriate
+ */
+ switch (step)
+ {
+ case GTK_MOVEMENT_DISPLAY_LINES:
+ case GTK_MOVEMENT_VISUAL_POSITIONS:
+ {
+ gint end_x, end_y;
+ gint anchor_x, anchor_y;
+ gboolean end_is_left;
+
+ get_better_cursor (label, label->selection_end, &end_x, &end_y);
+ get_better_cursor (label, label->selection_anchor, &anchor_x, &anchor_y);
+
+ end_is_left = (end_y < anchor_y) || (end_y == anchor_y && end_x < anchor_x);
+
+ if (count < 0)
+ new_pos = end_is_left ? label->selection_end : label->selection_anchor;
+ else
+ new_pos = !end_is_left ? label->selection_end : label->selection_anchor;
+
+ break;
+ }
+ case GTK_MOVEMENT_LOGICAL_POSITIONS:
+ case GTK_MOVEMENT_WORDS:
+ if (count < 0)
+ new_pos = MIN (label->selection_end, label->selection_anchor);
+ else
+ new_pos = MAX (label->selection_end, label->selection_anchor);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
+ case GTK_MOVEMENT_PARAGRAPH_ENDS:
+ case GTK_MOVEMENT_BUFFER_ENDS:
+ /* FIXME: Can do better here */
+ new_pos = count < 0 ? 0 : strlen (label->text);
+ break;
+ case GTK_MOVEMENT_PARAGRAPHS:
+ case GTK_MOVEMENT_PAGES:
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+ }
+ else
+ {
+ switch (step)
+ {
+ case GTK_MOVEMENT_LOGICAL_POSITIONS:
+ new_pos = eel_editable_label_move_logically (label, new_pos, count);
+ break;
+ case GTK_MOVEMENT_VISUAL_POSITIONS:
+ new_pos = eel_editable_label_move_visually (label, new_pos, count);
+ break;
+ case GTK_MOVEMENT_WORDS:
+ while (count > 0)
+ {
+ new_pos = eel_editable_label_move_forward_word (label, new_pos);
+ count--;
+ }
+ while (count < 0)
+ {
+ new_pos = eel_editable_label_move_backward_word (label, new_pos);
+ count++;
+ }
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
+ case GTK_MOVEMENT_PARAGRAPH_ENDS:
+ case GTK_MOVEMENT_BUFFER_ENDS:
+ /* FIXME: Can do better here */
+ new_pos = count < 0 ? 0 : strlen (label->text);
+ break;
+ case GTK_MOVEMENT_DISPLAY_LINES:
+ new_pos = eel_editable_label_move_line (label, new_pos, count);
+ break;
+ break;
+ case GTK_MOVEMENT_PARAGRAPHS:
+ case GTK_MOVEMENT_PAGES:
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+ }
+
+ if (extend_selection)
+ eel_editable_label_select_region_index (label,
+ label->selection_anchor,
+ new_pos);
+ else
+ eel_editable_label_select_region_index (label, new_pos, new_pos);
+}
+
+static void
+eel_editable_label_reset_im_context (EelEditableLabel *label)
+{
+ if (label->need_im_reset)
+ {
+ label->need_im_reset = 0;
+ gtk_im_context_reset (label->im_context);
+ }
+}
+
+
+static void
+eel_editable_label_delete_from_cursor (EelEditableLabel *label,
+ GtkDeleteType type,
+ gint count)
+{
+ GtkEditable *editable = GTK_EDITABLE (label);
+ gint start_pos = label->selection_anchor;
+ gint end_pos = label->selection_anchor;
+
+ eel_editable_label_reset_im_context (label);
+
+ if (label->selection_anchor != label->selection_end)
+ {
+ gtk_editable_delete_selection (editable);
+ return;
+ }
+
+ switch (type)
+ {
+ case GTK_DELETE_CHARS:
+ end_pos = eel_editable_label_move_logically (label, start_pos, count);
+ start_pos = g_utf8_pointer_to_offset (label->text, label->text + start_pos);
+ end_pos = g_utf8_pointer_to_offset (label->text, label->text + end_pos);
+ gtk_editable_delete_text (GTK_EDITABLE (label), MIN (start_pos, end_pos), MAX (start_pos, end_pos));
+ break;
+ case GTK_DELETE_WORDS:
+ if (count < 0)
+ {
+ /* Move to end of current word, or if not on a word, end of previous word */
+ end_pos = eel_editable_label_move_backward_word (label, end_pos);
+ end_pos = eel_editable_label_move_forward_word (label, end_pos);
+ }
+ else if (count > 0)
+ {
+ /* Move to beginning of current word, or if not on a word, begining of next word */
+ start_pos = eel_editable_label_move_forward_word (label, start_pos);
+ start_pos = eel_editable_label_move_backward_word (label, start_pos);
+ }
+
+ /* Fall through */
+ case GTK_DELETE_WORD_ENDS:
+ while (count < 0)
+ {
+ start_pos = eel_editable_label_move_backward_word (label, start_pos);
+ count++;
+ }
+ while (count > 0)
+ {
+ end_pos = eel_editable_label_move_forward_word (label, end_pos);
+ count--;
+ }
+ start_pos = g_utf8_pointer_to_offset (label->text, label->text + start_pos);
+ end_pos = g_utf8_pointer_to_offset (label->text, label->text + end_pos);
+
+ gtk_editable_delete_text (GTK_EDITABLE (label), start_pos, end_pos);
+ break;
+ case GTK_DELETE_DISPLAY_LINE_ENDS:
+ case GTK_DELETE_PARAGRAPH_ENDS:
+ end_pos = g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
+ if (count < 0)
+ gtk_editable_delete_text (GTK_EDITABLE (label), 0, end_pos);
+ else
+ gtk_editable_delete_text (GTK_EDITABLE (label), end_pos, -1);
+ break;
+ case GTK_DELETE_DISPLAY_LINES:
+ case GTK_DELETE_PARAGRAPHS:
+ gtk_editable_delete_text (GTK_EDITABLE (label), 0, -1);
+ break;
+ case GTK_DELETE_WHITESPACE:
+ /* TODO eel_editable_label_delete_whitespace (label); */
+ break;
+ }
+
+ eel_editable_label_pend_cursor_blink (label);
+}
+
+
+static void
+eel_editable_label_copy_clipboard (EelEditableLabel *label)
+{
+ if (label->text)
+ {
+ gint start, end;
+ gint len;
+
+ start = MIN (label->selection_anchor,
+ label->selection_end);
+ end = MAX (label->selection_anchor,
+ label->selection_end);
+
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ if (start != end)
+ gtk_clipboard_set_text (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
+ label->text + start, end - start);
+ }
+}
+
+static void
+eel_editable_label_cut_clipboard (EelEditableLabel *label)
+{
+ if (label->text)
+ {
+ gint start, end;
+ gint len;
+
+ start = MIN (label->selection_anchor,
+ label->selection_end);
+ end = MAX (label->selection_anchor,
+ label->selection_end);
+
+ len = strlen (label->text);
+
+ if (end > len)
+ end = len;
+
+ if (start > len)
+ start = len;
+
+ if (start != end)
+ {
+ gtk_clipboard_set_text (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
+ label->text + start, end - start);
+ start = g_utf8_pointer_to_offset (label->text, label->text + start);
+ end = g_utf8_pointer_to_offset (label->text, label->text + end);
+ gtk_editable_delete_text (GTK_EDITABLE (label), start, end);
+ }
+ }
+}
+
+static void
+paste_received (GtkClipboard *clipboard,
+ const gchar *text,
+ gpointer data)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (data);
+ GtkEditable *editable = GTK_EDITABLE (label);
+ gint tmp_pos;
+
+ if (text)
+ {
+ if (label->selection_end != label->selection_anchor)
+ gtk_editable_delete_selection (editable);
+
+ tmp_pos = g_utf8_pointer_to_offset (label->text,
+ label->text + label->selection_anchor);
+ gtk_editable_insert_text (GTK_EDITABLE (label), text, strlen (text), &tmp_pos);
+ tmp_pos = g_utf8_offset_to_pointer (label->text, tmp_pos) - label->text;
+ eel_editable_label_select_region_index (label, tmp_pos, tmp_pos);
+ }
+
+ g_object_unref (G_OBJECT (label));
+}
+
+static void
+eel_editable_label_paste (EelEditableLabel *label,
+ GdkAtom selection)
+{
+ g_object_ref (G_OBJECT (label));
+ gtk_clipboard_request_text (gtk_widget_get_clipboard (GTK_WIDGET (label), selection),
+ paste_received, label);
+}
+
+static void
+eel_editable_label_paste_clipboard (EelEditableLabel *label)
+{
+ eel_editable_label_paste (label, GDK_NONE);
+}
+
+static void
+eel_editable_label_select_all (EelEditableLabel *label)
+{
+ eel_editable_label_select_region_index (label, 0, strlen (label->text));
+}
+
+/* Quick hack of a popup menu
+ */
+static void
+activate_cb (GtkWidget *menuitem,
+ EelEditableLabel *label)
+{
+ const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
+ g_signal_emit_by_name (GTK_OBJECT (label), signal);
+}
+
+static void
+append_action_signal (EelEditableLabel *label,
+ GtkWidget *menu,
+ const gchar *stock_id,
+ const gchar *signal,
+ gboolean sensitive)
+{
+ GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
+
+ g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
+ g_signal_connect (menuitem, "activate",
+ G_CALLBACK (activate_cb), label);
+
+ gtk_widget_set_sensitive (menuitem, sensitive);
+
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
+}
+
+static void
+popup_menu_detach (GtkWidget *attach_widget,
+ GtkMenu *menu)
+{
+ EelEditableLabel *label;
+ label = EEL_EDITABLE_LABEL (attach_widget);
+
+ label->popup_menu = NULL;
+}
+
+static void
+popup_position_func (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gboolean *push_in,
+ gpointer user_data)
+{
+ EelEditableLabel *label;
+ GtkWidget *widget;
+ GtkRequisition req;
+ GtkAllocation allocation;
+
+ label = EEL_EDITABLE_LABEL (user_data);
+ widget = GTK_WIDGET (label);
+
+ g_assert (gtk_widget_get_realized (widget));
+
+ gdk_window_get_origin (gtk_widget_get_window (widget), x, y);
+
+ /*gtk_widget_size_request (label->popup_menu, &req);*/
+ gtk_widget_get_requisition (widget, &req);
+ gtk_widget_get_allocation (widget, &allocation);
+
+ *x += allocation.width / 2;
+ *y += allocation.height;
+
+ *x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
+ *y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
+}
+
+static void
+eel_editable_label_toggle_overwrite (EelEditableLabel *label)
+{
+ label->overwrite_mode = !label->overwrite_mode;
+ gtk_widget_queue_draw (GTK_WIDGET (label));
+}
+
+typedef struct
+{
+ EelEditableLabel *label;
+ gint button;
+ guint time;
+} PopupInfo;
+
+static void
+popup_targets_received (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ gpointer user_data)
+{
+ GtkWidget *menuitem, *submenu;
+ gboolean have_selection;
+ gboolean clipboard_contains_text;
+ PopupInfo *info;
+ EelEditableLabel *label;
+
+ info = user_data;
+ label = info->label;
+
+ if (gtk_widget_get_realized (GTK_WIDGET (label)))
+ {
+ if (label->popup_menu)
+ gtk_widget_destroy (label->popup_menu);
+
+ label->popup_menu = gtk_menu_new ();
+
+ gtk_menu_attach_to_widget (GTK_MENU (label->popup_menu),
+ GTK_WIDGET (label),
+ popup_menu_detach);
+
+ have_selection =
+ label->selection_anchor != label->selection_end;
+
+ clipboard_contains_text = gtk_selection_data_targets_include_text (data);
+
+ append_action_signal (label, label->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
+ have_selection);
+ append_action_signal (label, label->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
+ have_selection);
+ append_action_signal (label, label->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
+ clipboard_contains_text);
+
+ menuitem = gtk_menu_item_new_with_label (_("Select All"));
+ g_signal_connect_object (menuitem, "activate",
+ G_CALLBACK (eel_editable_label_select_all), label,
+ G_CONNECT_SWAPPED);
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->popup_menu), menuitem);
+
+ menuitem = gtk_separator_menu_item_new ();
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (label->popup_menu), menuitem);
+
+ 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 (label->popup_menu), menuitem);
+
+ gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (label->im_context),
+ GTK_MENU_SHELL (submenu));
+
+ g_signal_emit (GTK_OBJECT (label),
+ signals[POPULATE_POPUP], 0,
+ label->popup_menu);
+
+ if (info->button)
+ gtk_menu_popup (GTK_MENU (label->popup_menu), NULL, NULL,
+ NULL, NULL,
+ info->button, info->time);
+ else
+ {
+ gtk_menu_popup (GTK_MENU (label->popup_menu), NULL, NULL,
+ popup_position_func, label,
+ info->button, info->time);
+ gtk_menu_shell_select_first (GTK_MENU_SHELL (label->popup_menu), FALSE);
+ }
+ }
+
+ g_object_unref (label);
+ g_free (info);
+}
+
+static void
+eel_editable_label_do_popup (EelEditableLabel *label,
+ GdkEventButton *event)
+{
+ PopupInfo *info = g_new (PopupInfo, 1);
+
+ /* In order to know what entries we should make sensitive, we
+ * ask for the current targets of the clipboard, and when
+ * we get them, then we actually pop up the menu.
+ */
+ info->label = g_object_ref (label);
+
+ if (event)
+ {
+ info->button = event->button;
+ info->time = event->time;
+ }
+ else
+ {
+ info->button = 0;
+ info->time = gtk_get_current_event_time ();
+ }
+
+ gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (label), GDK_SELECTION_CLIPBOARD),
+ gdk_atom_intern ("TARGETS", FALSE),
+ popup_targets_received,
+ info);
+}
+
+/************ Editable implementation ****************/
+
+static void
+editable_insert_text_emit (GtkEditable *editable,
+ const gchar *new_text,
+ gint new_text_length,
+ gint *position)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ gchar buf[64];
+ gchar *text;
+ int text_length;
+
+ text_length = g_utf8_strlen (label->text, -1);
+
+ if (*position < 0 || *position > text_length)
+ *position = text_length;
+
+ g_object_ref (G_OBJECT (editable));
+
+ if (new_text_length <= 63)
+ text = buf;
+ else
+ text = g_new (gchar, new_text_length + 1);
+
+ text[new_text_length] = '\0';
+ strncpy (text, new_text, new_text_length);
+
+ g_signal_emit_by_name (editable, "insert_text", text, new_text_length, position);
+
+ if (new_text_length > 63)
+ g_free (text);
+
+ g_object_unref (G_OBJECT (editable));
+}
+
+static void
+editable_delete_text_emit (GtkEditable *editable,
+ gint start_pos,
+ gint end_pos)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ int text_length;
+
+ text_length = g_utf8_strlen (label->text, -1);
+
+ if (end_pos < 0 || end_pos > text_length)
+ end_pos = text_length;
+ if (start_pos < 0)
+ start_pos = 0;
+ if (start_pos > end_pos)
+ start_pos = end_pos;
+
+ g_object_ref (G_OBJECT (editable));
+
+ g_signal_emit_by_name (editable, "delete_text", start_pos, end_pos);
+
+ g_object_unref (G_OBJECT (editable));
+}
+
+static void
+editable_insert_text (GtkEditable *editable,
+ const gchar *new_text,
+ gint new_text_length,
+ gint *position)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ gint index;
+
+ if (new_text_length < 0)
+ new_text_length = strlen (new_text);
+
+ index = g_utf8_offset_to_pointer (label->text, *position) - label->text;
+
+ eel_editable_label_insert_text (label,
+ new_text,
+ new_text_length,
+ &index);
+
+ *position = g_utf8_pointer_to_offset (label->text, label->text + index);
+}
+
+static void
+editable_delete_text (GtkEditable *editable,
+ gint start_pos,
+ gint end_pos)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ int text_length;
+ gint start_index, end_index;
+
+ text_length = g_utf8_strlen (label->text, -1);
+
+ if (end_pos < 0 || end_pos > text_length)
+ end_pos = text_length;
+ if (start_pos < 0)
+ start_pos = 0;
+ if (start_pos > end_pos)
+ start_pos = end_pos;
+
+ start_index = g_utf8_offset_to_pointer (label->text, start_pos) - label->text;
+ end_index = g_utf8_offset_to_pointer (label->text, end_pos) - label->text;
+
+ eel_editable_label_delete_text (label, start_index, end_index);
+}
+
+static gchar *
+editable_get_chars (GtkEditable *editable,
+ gint start_pos,
+ gint end_pos)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ int text_length;
+ gint start_index, end_index;
+
+ text_length = g_utf8_strlen (label->text, -1);
+
+ if (end_pos < 0 || end_pos > text_length)
+ end_pos = text_length;
+ if (start_pos < 0)
+ start_pos = 0;
+ if (start_pos > end_pos)
+ start_pos = end_pos;
+
+ start_index = g_utf8_offset_to_pointer (label->text, start_pos) - label->text;
+ end_index = g_utf8_offset_to_pointer (label->text, end_pos) - label->text;
+
+ return g_strndup (label->text + start_index, end_index - start_index);
+}
+
+static void
+editable_set_selection_bounds (GtkEditable *editable,
+ gint start,
+ gint end)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ int text_length;
+ gint start_index, end_index;
+
+ text_length = g_utf8_strlen (label->text, -1);
+
+ if (end < 0 || end > text_length)
+ end = text_length;
+ if (start < 0)
+ start = text_length;
+ if (start > text_length)
+ start = text_length;
+
+ eel_editable_label_reset_im_context (label);
+
+ start_index = g_utf8_offset_to_pointer (label->text, start) - label->text;
+ end_index = g_utf8_offset_to_pointer (label->text, end) - label->text;
+
+ eel_editable_label_select_region_index (label, start_index, end_index);
+}
+
+static gboolean
+editable_get_selection_bounds (GtkEditable *editable,
+ gint *start,
+ gint *end)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+
+ *start = g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
+ *end = g_utf8_pointer_to_offset (label->text, label->text + label->selection_end);
+
+ return (label->selection_anchor != label->selection_end);
+}
+
+static void
+editable_real_set_position (GtkEditable *editable,
+ gint position)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+ int text_length;
+ int index;
+
+ text_length = g_utf8_strlen (label->text, -1);
+
+ if (position < 0 || position > text_length)
+ position = text_length;
+
+ index = g_utf8_offset_to_pointer (label->text, position) - label->text;
+
+ if (index != label->selection_anchor ||
+ index != label->selection_end)
+ {
+ eel_editable_label_select_region_index (label, index, index);
+ }
+}
+
+static gint
+editable_get_position (GtkEditable *editable)
+{
+ EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
+
+ return g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
+}
+
+
+static AtkObjectClass *a11y_parent_class = NULL;
+
+static const char* eel_editable_label_accessible_data = "eel-editable-label-accessible-data";
+
+/************ Accessible implementation ****************/
+
+typedef struct
+{
+ GailTextUtil *textutil;
+ gint selection_anchor;
+ gint selection_end;
+ gchar *signal_name;
+ gint position;
+ gint length;
+} EelEditableLabelAccessiblePrivate;
+
+typedef struct
+{
+ EelEditableLabel* label;
+ gint position;
+} EelEditableLabelAccessiblePaste;
+
+
+static gchar*
+eel_editable_label_accessible_get_text (AtkText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabelAccessiblePrivate *priv;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
+ return gail_text_util_get_substring (priv->textutil, start_pos, end_pos);
+}
+
+static gunichar
+eel_editable_label_accessible_get_character_at_offset (AtkText *text,
+ gint offset)
+{
+ GtkWidget *widget;
+ EelEditableLabelAccessiblePrivate *priv;
+ gchar *string;
+ gchar *index;
+ gunichar unichar;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return '\0';
+
+ priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
+ string = gail_text_util_get_substring (priv->textutil, 0, -1);
+ if (offset >= g_utf8_strlen (string, -1))
+ {
+ unichar = '\0';
+ }
+ else
+ {
+ index = g_utf8_offset_to_pointer (string, offset);
+
+ unichar = g_utf8_get_char(index);
+ }
+
+ g_free(string);
+ return unichar;
+}
+
+static gchar*
+eel_editable_label_accessible_get_text_before_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ EelEditableLabelAccessiblePrivate *priv;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
+
+ return gail_text_util_get_text (priv->textutil,
+ eel_editable_label_get_layout (label),
+ GAIL_BEFORE_OFFSET,
+ boundary_type, offset,
+ start_offset, end_offset);
+}
+
+static gchar*
+eel_editable_label_accessible_get_text_at_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ EelEditableLabelAccessiblePrivate *priv;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+
+ label = EEL_EDITABLE_LABEL (widget);
+ priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
+ return gail_text_util_get_text (priv->textutil,
+ eel_editable_label_get_layout (label),
+ GAIL_AT_OFFSET,
+ boundary_type, offset,
+ start_offset, end_offset);
+}
+
+static gchar*
+eel_editable_label_accessible_get_text_after_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ EelEditableLabelAccessiblePrivate *priv;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
+ return gail_text_util_get_text (priv->textutil,
+ eel_editable_label_get_layout (label),
+ GAIL_AFTER_OFFSET,
+ boundary_type, offset,
+ start_offset, end_offset);
+}
+
+static gint
+eel_editable_label_accessible_get_caret_offset (AtkText *text)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return 0;
+
+ return gtk_editable_get_position (GTK_EDITABLE (widget));
+}
+
+static gboolean
+eel_editable_label_accessible_set_caret_offset (AtkText *text, gint offset)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ gtk_editable_set_position (GTK_EDITABLE (widget), offset);
+ return TRUE;
+}
+
+static gint
+eel_editable_label_accessible_get_character_count (AtkText *text)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return 0;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ return g_utf8_strlen (eel_editable_label_get_text (label), -1);
+}
+
+static gint
+eel_editable_label_accessible_get_n_selections (AtkText *text)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ gint select_start, select_end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return -1;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
+ &select_end);
+
+ if (select_start != select_end)
+ return 1;
+ else
+ return 0;
+}
+
+static gchar*
+eel_editable_label_accessible_get_selection (AtkText *text,
+ gint selection_num,
+ gint *start_pos,
+ gint *end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ /* Only let the user get the selection if one is set, and if the
+ * selection_num is 0.
+ */
+ if (selection_num != 0)
+ return NULL;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ gtk_editable_get_selection_bounds (GTK_EDITABLE (label), start_pos, end_pos);
+
+ if (*start_pos != *end_pos)
+ return gtk_editable_get_chars (GTK_EDITABLE (label), *start_pos, *end_pos);
+ else
+ return NULL;
+}
+
+static gboolean
+eel_editable_label_accessible_add_selection (AtkText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ gint select_start, select_end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
+ &select_end);
+
+ /* If there is already a selection, then don't allow another to be added,
+ * since EelEditableLabel only supports one selected region.
+ */
+ if (select_start == select_end)
+ {
+ gtk_editable_select_region (GTK_EDITABLE (label), start_pos, end_pos);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gboolean
+eel_editable_label_accessible_remove_selection (AtkText *text,
+ gint selection_num)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ gint select_start, select_end, caret_pos;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ if (selection_num != 0)
+ return FALSE;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
+ &select_end);
+
+ if (select_start != select_end)
+ {
+ /* Setting the start & end of the selected region to the caret position
+ * turns off the selection.
+ */
+ caret_pos = gtk_editable_get_position (GTK_EDITABLE (label));
+ gtk_editable_select_region (GTK_EDITABLE (label), caret_pos, caret_pos);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gboolean
+eel_editable_label_accessible_set_selection (AtkText *text,
+ gint selection_num,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ gint select_start, select_end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ /* Only let the user move the selection if one is set, and if the
+ * selection_num is 0
+ */
+ if (selection_num != 0)
+ return FALSE;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
+ &select_end);
+
+ if (select_start != select_end)
+ {
+ gtk_editable_select_region (GTK_EDITABLE (label), start_pos, end_pos);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static AtkAttributeSet*
+eel_editable_label_accessible_get_run_attributes (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ AtkAttributeSet *at_set = NULL;
+ GtkTextDirection dir;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ dir = gtk_widget_get_direction (widget);
+ if (dir == GTK_TEXT_DIR_RTL)
+ {
+ at_set = gail_misc_add_attribute (at_set,
+ ATK_TEXT_ATTR_DIRECTION,
+ g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
+ }
+
+ at_set = gail_misc_layout_get_run_attributes (at_set,
+ eel_editable_label_get_layout (label),
+ label->text,
+ offset,
+ start_offset,
+ end_offset);
+ return at_set;
+}
+
+static AtkAttributeSet*
+eel_editable_label_accessible_get_default_attributes (AtkText *text)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ AtkAttributeSet *at_set = NULL;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ at_set = gail_misc_get_default_attributes (at_set,
+ eel_editable_label_get_layout (label),
+ widget);
+ return at_set;
+}
+
+static void
+eel_editable_label_accessible_get_character_extents (AtkText *text,
+ gint offset,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coords)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ PangoRectangle char_rect;
+ gint index, cursor_index, x_layout, y_layout;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ eel_editable_label_get_layout_offsets (label, &x_layout, &y_layout);
+ index = g_utf8_offset_to_pointer (label->text, offset) - label->text;
+ cursor_index = label->selection_anchor;
+ if (index > cursor_index)
+ index += label->preedit_length;
+ pango_layout_index_to_pos (eel_editable_label_get_layout(label), index, &char_rect);
+
+ gail_misc_get_extents_from_pango_rectangle (widget, &char_rect,
+ x_layout, y_layout, x, y, width, height, coords);
+}
+
+static gint
+eel_editable_label_accessible_get_offset_at_point (AtkText *text,
+ gint x,
+ gint y,
+ AtkCoordType coords)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ gint index, cursor_index, x_layout, y_layout;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return -1;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ eel_editable_label_get_layout_offsets (label, &x_layout, &y_layout);
+
+ index = gail_misc_get_index_at_point_in_layout (widget,
+ eel_editable_label_get_layout(label), x_layout, y_layout, x, y, coords);
+ if (index == -1)
+ {
+ if (coords == ATK_XY_SCREEN || coords == ATK_XY_WINDOW)
+ return g_utf8_strlen (label->text, -1);
+
+ return index;
+ }
+ else
+ {
+ cursor_index = label->selection_anchor;
+ if (index >= cursor_index && label->preedit_length)
+ {
+ if (index >= cursor_index + label->preedit_length)
+ index -= label->preedit_length;
+ else
+ index = cursor_index;
+ }
+ return g_utf8_pointer_to_offset (label->text, label->text + index);
+ }
+}
+
+static void
+atk_text_interface_init (AtkTextIface *iface)
+{
+ g_assert (iface != NULL);
+
+ iface->get_text = eel_editable_label_accessible_get_text;
+ iface->get_character_at_offset = eel_editable_label_accessible_get_character_at_offset;
+ iface->get_text_before_offset = eel_editable_label_accessible_get_text_before_offset;
+ iface->get_text_at_offset = eel_editable_label_accessible_get_text_at_offset;
+ iface->get_text_after_offset = eel_editable_label_accessible_get_text_after_offset;
+ iface->get_caret_offset = eel_editable_label_accessible_get_caret_offset;
+ iface->set_caret_offset = eel_editable_label_accessible_set_caret_offset;
+ iface->get_character_count = eel_editable_label_accessible_get_character_count;
+ iface->get_n_selections = eel_editable_label_accessible_get_n_selections;
+ iface->get_selection = eel_editable_label_accessible_get_selection;
+ iface->add_selection = eel_editable_label_accessible_add_selection;
+ iface->remove_selection = eel_editable_label_accessible_remove_selection;
+ iface->set_selection = eel_editable_label_accessible_set_selection;
+ iface->get_run_attributes = eel_editable_label_accessible_get_run_attributes;
+ iface->get_default_attributes = eel_editable_label_accessible_get_default_attributes;
+ iface->get_character_extents = eel_editable_label_accessible_get_character_extents;
+ iface->get_offset_at_point = eel_editable_label_accessible_get_offset_at_point;
+}
+
+static void
+eel_editable_label_accessible_set_text_contents (AtkEditableText *text,
+ const gchar *string)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = EEL_EDITABLE_LABEL (widget);
+
+ eel_editable_label_set_text (label, string);
+}
+
+static void
+eel_editable_label_accessible_insert_text (AtkEditableText *text,
+ const gchar *string,
+ gint length,
+ gint *position)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ GtkEditable *editable;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ editable = GTK_EDITABLE (label);
+
+ gtk_editable_insert_text (editable, string, length, position);
+}
+
+static void
+eel_editable_label_accessible_copy_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ GtkEditable *editable;
+ gchar *str;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ editable = GTK_EDITABLE (label);
+ str = gtk_editable_get_chars (editable, start_pos, end_pos);
+ gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), str, -1);
+}
+
+static void
+eel_editable_label_accessible_cut_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ GtkEditable *editable;
+ gchar *str;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ editable = GTK_EDITABLE (label);
+ str = gtk_editable_get_chars (editable, start_pos, end_pos);
+ gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), str, -1);
+ gtk_editable_delete_text (editable, start_pos, end_pos);
+}
+
+static void
+eel_editable_label_accessible_delete_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ EelEditableLabel *label;
+ GtkEditable *editable;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ label = EEL_EDITABLE_LABEL (widget);
+ editable = GTK_EDITABLE (label);
+
+ gtk_editable_delete_text (editable, start_pos, end_pos);
+}
+
+static void
+eel_editable_label_accessible_paste_received (GtkClipboard *clipboard,
+ const gchar *text,
+ gpointer data)
+{
+ EelEditableLabelAccessiblePaste* paste_struct = (EelEditableLabelAccessiblePaste *)data;
+
+ if (text)
+ gtk_editable_insert_text (GTK_EDITABLE (paste_struct->label), text, -1,
+ &(paste_struct->position));
+
+ g_object_unref (paste_struct->label);
+}
+
+static void
+eel_editable_label_accessible_paste_text (AtkEditableText *text,
+ gint position)
+{
+ GtkWidget *widget;
+ GtkEditable *editable;
+ EelEditableLabelAccessiblePaste paste_struct;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ editable = GTK_EDITABLE (widget);
+ if (!gtk_editable_get_editable (editable))
+ return;
+ paste_struct.label = EEL_EDITABLE_LABEL (widget);
+ paste_struct.position = position;
+
+ g_object_ref (paste_struct.label);
+ gtk_clipboard_request_text (gtk_clipboard_get (GDK_NONE),
+ eel_editable_label_accessible_paste_received, &paste_struct);
+}
+
+static void
+atk_editable_text_interface_init (AtkEditableTextIface *iface)
+{
+ g_assert (iface != NULL);
+
+ iface->set_text_contents = eel_editable_label_accessible_set_text_contents;
+ iface->insert_text = eel_editable_label_accessible_insert_text;
+ iface->copy_text = eel_editable_label_accessible_copy_text;
+ iface->cut_text = eel_editable_label_accessible_cut_text;
+ iface->delete_text = eel_editable_label_accessible_delete_text;
+ iface->paste_text = eel_editable_label_accessible_paste_text;
+}
+
+static void
+eel_editable_label_accessible_notify_insert (AtkObject *accessible)
+{
+ EelEditableLabelAccessiblePrivate *priv;
+
+ priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
+ if (priv->signal_name)
+ {
+ g_signal_emit_by_name (accessible,
+ priv->signal_name,
+ priv->position,
+ priv->length);
+ priv->signal_name = NULL;
+ }
+}
+
+static gboolean
+eel_editable_label_accessible_idle_notify_insert (gpointer data)
+{
+ eel_editable_label_accessible_notify_insert (data);
+ return FALSE;
+}
+
+/* Note arg1 returns the character at the start of the insert.
+ * arg2 returns the number of characters inserted.
+ */
+static void
+eel_editable_label_accessible_insert_text_cb (EelEditableLabel *label,
+ gchar *arg1,
+ gint arg2,
+ gpointer arg3)
+{
+ AtkObject *accessible;
+ EelEditableLabelAccessiblePrivate *priv;
+ gint *position = (gint *) arg3;
+
+ accessible = gtk_widget_get_accessible (GTK_WIDGET (label));
+ priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
+ if (!priv->signal_name)
+ {
+ priv->signal_name = "text_changed::insert";
+ priv->position = *position;
+ priv->length = arg2;
+ }
+ /*
+ * The signal will be emitted when the cursor position is updated.
+ * or in an idle handler if it not updated.
+ */
+ g_idle_add (eel_editable_label_accessible_idle_notify_insert, accessible);
+}
+
+/* Note arg1 returns the start of the delete range, arg2 returns the
+ * end of the delete range if multiple characters are deleted.
+ */
+static void
+eel_editable_label_accessible_delete_text_cb (EelEditableLabel *label,
+ gint arg1,
+ gint arg2)
+{
+ AtkObject *accessible;
+
+ accessible = gtk_widget_get_accessible (GTK_WIDGET (label));
+
+ /*
+ * Zero length text deleted so ignore
+ */
+ if (arg2 - arg1 == 0)
+ return;
+
+ g_signal_emit_by_name (accessible, "text_changed::delete", arg1, arg2 - arg1);
+}
+
+static void
+eel_editable_label_accessible_changed_cb (EelEditableLabel *label)
+{
+ AtkObject *accessible;
+ EelEditableLabelAccessiblePrivate *priv;
+
+ accessible = gtk_widget_get_accessible (GTK_WIDGET (label));
+ priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
+ gail_text_util_text_setup (priv->textutil, eel_editable_label_get_text (label));
+}
+
+static gboolean
+check_for_selection_change (AtkObject *accessible,
+ GtkWidget *widget)
+{
+ EelEditableLabelAccessiblePrivate *priv;
+ EelEditableLabel *label;
+ gboolean ret_val = FALSE;
+
+ priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
+ label = EEL_EDITABLE_LABEL (widget);
+
+ if (label->selection_anchor != label->selection_end)
+ {
+ if (label->selection_anchor != priv->selection_anchor ||
+ label->selection_end != priv->selection_end)
+ /*
+ * This check is here as this function can be called
+ * for notification of selection_end and selection_anchor.
+ * The values of selection_anchor and selection_end may be the same
+ * for both notifications and we only want to generate one
+ * text_selection_changed signal.
+ */
+ ret_val = TRUE;
+ }
+ else
+ {
+ /* We had a selection */
+ ret_val = (priv->selection_anchor != priv->selection_end);
+ }
+ priv->selection_anchor = label->selection_anchor;
+ priv->selection_end = label->selection_end;
+
+ return ret_val;
+}
+
+static void
+eel_editable_label_accessible_notify_gtk (GObject *obj,
+ GParamSpec *pspec)
+{
+ GtkWidget *widget;
+ AtkObject *accessible;
+ EelEditableLabel *label;
+
+ widget = GTK_WIDGET (obj);
+ label = EEL_EDITABLE_LABEL (widget);
+ accessible = gtk_widget_get_accessible (widget);
+
+ if (strcmp (pspec->name, "cursor-position") == 0)
+ {
+ eel_editable_label_accessible_notify_insert (accessible);
+ if (check_for_selection_change (accessible, widget))
+ g_signal_emit_by_name (accessible, "text_selection_changed");
+ /*
+ * The label cursor position has moved so generate the signal.
+ */
+ g_signal_emit_by_name (accessible, "text_caret_moved",
+ g_utf8_pointer_to_offset (label->text,
+ label->text + label->selection_anchor));
+ }
+ else if (strcmp (pspec->name, "selection-bound") == 0)
+ {
+ eel_editable_label_accessible_notify_insert (accessible);
+
+ if (check_for_selection_change (accessible, widget))
+ g_signal_emit_by_name (accessible, "text_selection_changed");
+ }
+}
+
+static void
+eel_editable_label_accessible_initialize (AtkObject *accessible,
+ gpointer widget)
+{
+ EelEditableLabelAccessiblePrivate *priv;
+ EelEditableLabel *label;
+
+ a11y_parent_class->initialize (accessible, widget);
+
+ label = EEL_EDITABLE_LABEL (widget);
+ priv = g_new0 (EelEditableLabelAccessiblePrivate, 1);
+ priv->textutil = gail_text_util_new ();
+ gail_text_util_text_setup (priv->textutil, eel_editable_label_get_text (EEL_EDITABLE_LABEL (widget)));
+ priv->selection_anchor = label->selection_anchor;
+ priv->selection_end = label->selection_end;
+ g_object_set_data (G_OBJECT (accessible), eel_editable_label_accessible_data, priv);
+ g_signal_connect (widget, "insert-text",
+ G_CALLBACK (eel_editable_label_accessible_insert_text_cb), NULL);
+ g_signal_connect (widget, "delete-text",
+ G_CALLBACK (eel_editable_label_accessible_delete_text_cb), NULL);
+ g_signal_connect (widget, "changed",
+ G_CALLBACK (eel_editable_label_accessible_changed_cb), NULL);
+
+ g_signal_connect (widget,
+ "notify",
+ G_CALLBACK (eel_editable_label_accessible_notify_gtk),
+ NULL);
+ atk_object_set_role (accessible, ATK_ROLE_TEXT);
+}
+
+static const gchar* eel_editable_label_accessible_get_name(AtkObject* accessible)
+{
+ if (accessible->name != NULL)
+ {
+ return accessible->name;
+ }
+ else
+ {
+ GtkWidget* widget;
+
+ widget = gtk_accessible_get_widget(GTK_ACCESSIBLE(accessible));
+
+ if (widget == NULL)
+ {
+ /* State is defunct */
+ return NULL;
+ }
+
+ g_assert(EEL_IS_EDITABLE_LABEL(widget));
+
+ return eel_editable_label_get_text(EEL_EDITABLE_LABEL(widget));
+ }
+}
+
+static AtkStateSet*
+eel_editable_label_accessible_ref_state_set (AtkObject *accessible)
+{
+ AtkStateSet *state_set;
+ GtkWidget *widget;
+
+ state_set = a11y_parent_class->ref_state_set (accessible);
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
+
+ if (widget == NULL)
+ return state_set;
+
+ atk_state_set_add_state (state_set, ATK_STATE_EDITABLE);
+ atk_state_set_add_state (state_set, ATK_STATE_MULTI_LINE);
+ return state_set;
+}
+
+static void
+eel_editable_label_accessible_finalize (GObject *object)
+{
+ EelEditableLabelAccessiblePrivate *priv;
+
+ priv = g_object_get_data (object, eel_editable_label_accessible_data);
+ g_object_unref (priv->textutil);
+ g_free (priv);
+ G_OBJECT_CLASS (a11y_parent_class)->finalize (object);
+}
+
+static void
+eel_editable_label_accessible_class_init (AtkObjectClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+ a11y_parent_class = g_type_class_peek_parent (klass);
+
+ klass->initialize = eel_editable_label_accessible_initialize;
+ klass->get_name = eel_editable_label_accessible_get_name;
+ klass->ref_state_set = eel_editable_label_accessible_ref_state_set;
+ gobject_class->finalize = eel_editable_label_accessible_finalize;
+}
+
+static AtkObject *
+eel_editable_label_get_accessible (GtkWidget *widget)
+{
+ static GType type = 0;
+ AtkObject *accessible;
+
+ if ((accessible = eel_accessibility_get_atk_object (widget)))
+ return accessible;
+
+ if (!type)
+ {
+ const GInterfaceInfo atk_editable_text_info =
+ {
+ (GInterfaceInitFunc) atk_editable_text_interface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+ const GInterfaceInfo atk_text_info =
+ {
+ (GInterfaceInitFunc) atk_text_interface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+
+ type = eel_accessibility_create_derived_type ("EelEditableLabelAccessible",
+ G_TYPE_FROM_INSTANCE (widget),
+ eel_editable_label_accessible_class_init);
+
+ if (!type)
+ return NULL;
+
+ g_type_add_interface_static (type, ATK_TYPE_EDITABLE_TEXT, &atk_editable_text_info);
+ g_type_add_interface_static (type, ATK_TYPE_TEXT, &atk_text_info);
+ }
+
+ accessible = g_object_new (type, NULL);
+
+ return eel_accessibility_set_atk_object_return (widget, accessible);
+}
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-03 03:40:36 +0000