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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* gnome-icon-container-private.h
Copyright (C) 1999 Free Software Foundation
The Gnome Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The Gnome Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the Gnome Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
Author: Ettore Perazzoli <ettore@gnu.org>
*/
#ifndef _GNOME_ICON_CONTAINER_PRIVATE_H
#define _GNOME_ICON_CONTAINER_PRIVATE_H
#include "gnome-icon-container.h"
#include "gnome-icon-container-dnd.h"
/* An Icon. */
struct _GnomeIconContainerIcon {
/* Group containing the text and the image. */
GnomeCanvasGroup *item; /* FIXME wrong name. */
/* The image for the icon. Using a generic item makes it
possible for us to use any fancy canvas element. */
GnomeCanvasItem *image_item;
/* The text for the icon. */
GnomeIconTextItem *text_item;
/* Text for the icon. */
gchar *text;
/* X/Y coordinates and size. We could use the GnomeCanvasItem
functions, but this is a lot faster. */
gdouble x, y;
guint width, height; /* FIXME we could actually do without this if
we assume the size is always given by
GnomeIconContainer.cell_width*/
/* Whether this item is selected (i.e. highlighted) for operation. */
gboolean is_selected : 1;
/* Whether this item is selected for keyboard navigation. */
gboolean is_current : 1;
/* Whether this item has been repositioned during layout already. */
gboolean layout_done : 1;
/* Whether this item was selected before rubberbanding. */
gboolean was_selected_before_rubberband : 1;
gpointer data;
};
typedef struct _GnomeIconContainerIcon GnomeIconContainerIcon;
#define INITIAL_GRID_WIDTH 64
#define INITIAL_GRID_HEIGHT 64
struct _GnomeIconContainerIconGrid {
/* Size of the grid. */
guint width, height;
/* This is the width that we can actually use for finding an empty
position. */
guint visible_width;
/* Array of grid elements. */
GList **elems;
/* Size of the allocated array. */
guint alloc_width, alloc_height;
/* Position of the first free cell (used to speed up progressive
updates). If negative, there is no free cell. */
gint first_free_x, first_free_y;
};
typedef struct _GnomeIconContainerIconGrid GnomeIconContainerIconGrid;
/* Private GnomeIconContainer members. */
struct _GnomeIconContainerRubberbandInfo {
gboolean active : 1;
gdouble start_x, start_y;
GnomeCanvasItem *selection_rectangle;
guint timer_tag;
guint prev_x, prev_y;
guint prev_x1, prev_y1;
guint prev_x2, prev_y2;
};
typedef struct _GnomeIconContainerRubberbandInfo GnomeIconContainerRubberbandInfo;
struct _GnomeIconContainerPrivate {
/* Base URI for Drag & Drop. */
gchar *base_uri;
/* Browser mode setting. */
gboolean browser_mode : 1;
/* Current icon mode (index into `icon_mode_info[]' -- see
`gnome-icon-container.c'). */
GnomeIconContainerIconMode icon_mode;
/* Size of the container. */
guint width, height;
/* List of icons. */
GList *icons;
/* Total number of icons. */
guint num_icons;
/* The grid. */
GnomeIconContainerIconGrid *grid;
/* FIXME: This is *ugly*, but more efficient (both memory- and
speed-wise) than using gtk_object_{set,get}_data() for all the
icon items. */
GHashTable *canvas_item_to_icon;
/* Rectangle that shows that a certain icon is selected. */
GnomeCanvasItem *kbd_navigation_rectangle;
/* Current icon for keyboard navigation. */
GnomeIconContainerIcon *kbd_current;
/* Rubberbanding status. */
GnomeIconContainerRubberbandInfo rubberband_info;
/* Timeout used to make a selected icon fully visible after a short
period of time. (The timeout is needed to make sure
double-clicking still works.) */
gint kbd_icon_visibility_timer_tag;
/* Position of the pointer during the last click. */
gint drag_x, drag_y;
/* Button currently pressed, possibly for dragging. */
guint drag_button;
/* Icon on which the click happened. */
GnomeIconContainerIcon *drag_icon;
/* Whether we are actually performing a dragging action. */
gboolean doing_drag;
/* Drag offset. */
gint drag_x_offset, drag_y_offset;
/* Idle ID. */
guint idle_id;
/* Timeout for selection in browser mode. */
gint browser_mode_selection_timer_tag;
/* Icon to be selected at timeout in browser mode. */
GnomeIconContainerIcon *browser_mode_selection_icon;
/* DnD info. */
GnomeIconContainerDndInfo *dnd_info;
};
/* Definition of the available icon container modes. */
struct _GnomeIconContainerIconModeInfo {
guint icon_width;
guint icon_height;
guint cell_width;
guint cell_height;
guint cell_spacing;
guint icon_xoffset;
guint icon_yoffset;
};
typedef struct _GnomeIconContainerIconModeInfo GnomeIconContainerIconModeInfo;
extern GnomeIconContainerIconModeInfo gnome_icon_container_icon_mode_info[];
#define GNOME_ICON_CONTAINER_ICON_WIDTH(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].icon_width
#define GNOME_ICON_CONTAINER_ICON_HEIGHT(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].icon_height
#define GNOME_ICON_CONTAINER_CELL_WIDTH(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].cell_width
#define GNOME_ICON_CONTAINER_CELL_HEIGHT(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].cell_height
#define GNOME_ICON_CONTAINER_CELL_SPACING(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].cell_spacing
#define GNOME_ICON_CONTAINER_ICON_XOFFSET(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].icon_xoffset
#define GNOME_ICON_CONTAINER_ICON_YOFFSET(container) \
gnome_icon_container_icon_mode_info[container->priv->icon_mode].icon_yoffset
#endif /* _GNOME_ICON_CONTAINER_PRIVATE_H */
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