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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Author :
* Damon Chaplin <damon@helixcode.com>
*
* Copyright 1999, Helix Code, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#ifndef _E_ICON_BAR_H_
#define _E_ICON_BAR_H_
#include <gdk_imlib.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gal/widgets/e-canvas.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* EIconBar is a subclass of GnomeCanvas for displaying a vertical column of
* icons and descriptions. It provides 2 views - large icons and small icons.
*/
/* This contains information on one item. */
typedef struct _EIconBarItem EIconBarItem;
struct _EIconBarItem
{
GnomeCanvasItem *text;
GnomeCanvasItem *image;
/* This holds the original pixbuf so that we can blend
to the background if the style changes */
GdkPixbuf *pixbuf;
/* This is user data attached to the item, e.g. a URL. */
gpointer data;
GtkDestroyNotify destroy;
/* This is the height of the item. */
gint item_height;
/* This is the actual x, width and height of the text, rather than
the maximum allowed area. */
gint text_x;
gint text_width;
gint text_height;
gint icon_y, text_y;
};
/* These are the view types. Defaults to LARGE_ICONS. */
typedef enum
{
E_ICON_BAR_LARGE_ICONS,
E_ICON_BAR_SMALL_ICONS
} EIconBarViewType;
/* These index our colors array. */
typedef enum
{
E_ICON_BAR_COLOR_EDITING_TEXT,
E_ICON_BAR_COLOR_EDITING_RECT,
E_ICON_BAR_COLOR_EDITING_RECT_OUTLINE,
E_ICON_BAR_COLOR_LAST
} EIconBarColors;
#define E_ICON_BAR(obj) GTK_CHECK_CAST (obj, e_icon_bar_get_type (), EIconBar)
#define E_ICON_BAR_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, e_icon_bar_get_type (), EIconBarClass)
#define E_IS_ICON_BAR(obj) GTK_CHECK_TYPE (obj, e_icon_bar_get_type ())
typedef struct _EIconBar EIconBar;
typedef struct _EIconBarClass EIconBarClass;
struct _EIconBar
{
ECanvas canvas;
/* This specifies if we are using large icons or small icons. */
EIconBarViewType view_type;
/* This is an array of EIconBarItem elements. */
GArray *items;
/* This is the index of the item which has been pressed, or -1.
It will be shown as pressed in while the mouse is over it. */
gint pressed_item_num;
/* This is the coordinates of where the button was pressed. If the
mouse moves a certain distance with the button still pressed, we
start a drag. */
gint pressed_x;
gint pressed_y;
/* This is the index of the item the mouse is currently over, or -1.
It will be highlighted unless one of the items is pressed. */
gint mouse_over_item_num;
/* This is the item that we are currently editing, or -1. */
gint editing_item_num;
/* This is a GnomeCanvasRect which is placed around the edited item. */
GnomeCanvasItem *edit_rect_item;
/* This is the index of the item which is being dragged, or -1.
If the drag results in a move it will be deleted. */
gint dragged_item_num;
/* This is TRUE if we are dragging over this EIconBar. */
gboolean in_drag;
/* This is used in drag-and-drop to indicate the item which the mouse
is currently before, e.g. if it is 1 then a dropped item would be
inserted between items 0 and 1. It ranges from 0 to the number of
items, or is -1 when the mouse is not dragging between items. */
gint dragging_before_item_num;
/* These are the common positions of all the items in the EIconBar. */
gint icon_x, icon_w, icon_h, text_x, text_w, spacing;
/* This is the source id of our auto-scroll timeout handler, used when
in the middle of drag-and-drop operations. */
gint auto_scroll_timeout_id;
gint auto_scroll_delay;
gboolean scrolling_up;
/* Colors for drawing. */
GdkColor colors[E_ICON_BAR_COLOR_LAST];
/* Signal connection id for "value_changed" signal of vadjustment. */
guint vadjustment_value_changed_id;
};
struct _EIconBarClass
{
ECanvasClass parent_class;
void (*selected_item) (EIconBar *icon_bar,
GdkEvent *event,
gint item_num);
void (*dragged_item) (EIconBar *icon_bar,
GdkEvent *event,
gint item_num);
};
GtkType e_icon_bar_get_type (void);
GtkWidget* e_icon_bar_new (void);
/* Sets the view type. */
void e_icon_bar_set_view_type (EIconBar *icon_bar,
EIconBarViewType view_type);
/* Adds a new item to a group at the given position. If position is -1 it is
added at the end. It returns the index of the item. */
gint e_icon_bar_add_item (EIconBar *icon_bar,
GdkPixbuf *image,
const gchar *text,
gint position);
/* Reorders an item. Note that position refers to the new position to add the
item after removing it from its current position. If position is -1 it is
moved to the end of the bar. */
void e_icon_bar_reorder_item (EIconBar *icon_bar,
gint item_num,
gint new_position);
void e_icon_bar_remove_item (EIconBar *icon_bar,
gint item_num);
GdkPixbuf * e_icon_bar_get_item_image (EIconBar *icon_bar,
gint item_num);
void e_icon_bar_set_item_image (EIconBar *icon_bar,
gint item_num,
GdkPixbuf *image);
gchar* e_icon_bar_get_item_text (EIconBar *icon_bar,
gint item_num);
void e_icon_bar_set_item_text (EIconBar *icon_bar,
gint item_num,
gchar *text);
gpointer e_icon_bar_get_item_data (EIconBar *icon_bar,
gint item_num);
void e_icon_bar_set_item_data (EIconBar *icon_bar,
gint item_num,
gpointer data);
void e_icon_bar_set_item_data_full (EIconBar *icon_bar,
gint item_num,
gpointer data,
GtkDestroyNotify destroy);
void e_icon_bar_start_editing_item (EIconBar *icon_bar,
gint item_num);
void e_icon_bar_stop_editing_item (EIconBar *icon_bar,
gboolean accept);
/*
* INTERNAL FUNCTIONS - for use by EIconBarBgItem.
*/
/* This returns the index of the item at the given position on the EIconBar,
or -1 if no item is found. If before_item is not NULL, it returns the
item which the mouse is before, or -1 (this is used for dragging). */
gint e_icon_bar_find_item_at_position (EIconBar *icon_bar,
gint x,
gint y,
gint *before_item);
void e_icon_bar_item_pressed (EIconBar *icon_bar,
gint item_num,
GdkEvent *event);
void e_icon_bar_item_released (EIconBar *icon_bar,
gint item_num,
GdkEvent *event);
void e_icon_bar_item_motion (EIconBar *icon_bar,
gint item_num,
GdkEvent *event);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _E_ICON_BAR_H_ */
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