72c913ff20
2000-06-29 Jody Goldberg <jgoldberg@home.com> * e-canvas.c (e_canvas_init) : Init the InputContext members (e_canvas_class_init) : Add a handler for unrealize. (e_canvas_focus_in) : enable the input context. (e_canvas_focus_out) : enable the input context. (e_canvas_realize) : Create an input context. (e_canvas_unrealize) : New function to release the input context. svn path=/trunk/; revision=3817
122 lines
3.8 KiB
C
122 lines
3.8 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/* e-canvas.h
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* Copyright (C) 2000 Helix Code, Inc.
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* Author: Chris Lahey <clahey@helixcode.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __E_CANVAS_H__
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#define __E_CANVAS_H__
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#include <gnome.h>
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#ifdef __cplusplus
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extern "C" {
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#pragma }
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#endif /* __cplusplus */
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/* ECanvas - A class derived from canvas for the purpose of adding
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* evolution specific canvas hacks.
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*/
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#define E_CANVAS_TYPE (e_canvas_get_type ())
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#define E_CANVAS(obj) (GTK_CHECK_CAST ((obj), E_CANVAS_TYPE, ECanvas))
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#define E_CANVAS_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), E_CANVAS_TYPE, ECanvasClass))
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#define E_IS_CANVAS(obj) (GTK_CHECK_TYPE ((obj), E_CANVAS_TYPE))
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#define E_IS_CANVAS_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((obj), E_CANVAS_TYPE))
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typedef void (*ECanvasItemReflowFunc) (GnomeCanvasItem *item,
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gint flags);
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typedef void (*ECanvasItemSelectionFunc) (GnomeCanvasItem *item,
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gint flags,
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gpointer user_data);
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/* Returns the same as strcmp does. */
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typedef gint (*ECanvasItemSelectionCompareFunc) (GnomeCanvasItem *item,
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gpointer data1,
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gpointer data2,
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gint flags);
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typedef struct _ECanvas ECanvas;
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typedef struct _ECanvasClass ECanvasClass;
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/* Object flags for items */
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enum {
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E_CANVAS_ITEM_NEEDS_REFLOW = 1 << 13,
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E_CANVAS_ITEM_DESCENDENT_NEEDS_REFLOW = 1 << 14
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};
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enum {
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E_CANVAS_ITEM_SELECTION_SELECT = 1 << 0, /* TRUE = select. FALSE = unselect. */
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E_CANVAS_ITEM_SELECTION_CURSOR = 1 << 1, /* TRUE = has become cursor. FALSE = not cursor. */
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E_CANVAS_ITEM_SELECTION_DELETE_DATA = 1 << 2,
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};
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typedef struct {
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GnomeCanvasItem *item;
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gpointer id;
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} ECanvasSelectionInfo;
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struct _ECanvas
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{
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GnomeCanvas parent;
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int idle_id;
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GList *selection;
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ECanvasSelectionInfo *cursor;
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/* Input context for dead key support */
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GdkIC *ic;
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GdkICAttr *ic_attr;
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};
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struct _ECanvasClass
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{
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GnomeCanvasClass parent_class;
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void (* reflow) (ECanvas *canvas);
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};
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GtkType e_canvas_get_type (void);
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GtkWidget *e_canvas_new (void);
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/* Used to send all of the keystroke events to a specific item as well as
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* GDK_FOCUS_CHANGE events.
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*/
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void e_canvas_item_grab_focus (GnomeCanvasItem *item);
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void e_canvas_item_request_reflow (GnomeCanvasItem *item);
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void e_canvas_item_request_parent_reflow (GnomeCanvasItem *item);
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void e_canvas_item_set_reflow_callback (GnomeCanvasItem *item, ECanvasItemReflowFunc func);
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void e_canvas_item_set_selection_callback (GnomeCanvasItem *item, ECanvasItemSelectionFunc func);
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void e_canvas_item_set_selection_compare_callback (GnomeCanvasItem *item, ECanvasItemSelectionCompareFunc func);
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void e_canvas_item_set_cursor (GnomeCanvasItem *item, gpointer id);
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void e_canvas_item_add_selection (GnomeCanvasItem *item, gpointer id);
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void e_canvas_item_remove_selection (GnomeCanvasItem *item, gpointer id);
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/* Not implemented yet. */
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void e_canvas_item_set_cursor_end (GnomeCanvasItem *item, gpointer id);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __E_CANVAS_H__ */
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