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nautilus/libnautilus-private/nautilus-cell-renderer-pixbuf-emblem.c
Alexander Larsson e30b836d5f Patch from Jürg Billeter <j@bitron.ch> 
2004-01-09  Alexander Larsson  <alexl@redhat.com>

        Patch from Jürg Billeter <j@bitron.ch>

	* libnautilus-private/Makefile.am:
	* libnautilus-private/nautilus-cell-renderer-pixbuf-emblem.[ch]:
	pixbuf CellRenderer that handles emblems too

	* src/file-manager/fm-list-model.[ch]:
	* src/file-manager/fm-list-view.c:
	Add support for emblems to list

	* src/file-manager/fm-tree-model.[ch]
	* src/file-manager/fm-tree-view.c:
	Add support for emblems to tree
2004-01-09 14:37:51 +00:00

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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
nautilus-cell-renderer-pixbuf-emblem.c: cell renderer which can render
an emblem on top of a pixbuf (for use in FMListView and FMTreeView)
Copyright (C) 2003 Juerg Billeter
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.
This is based on GtkCellRendererPixbuf written by
Jonathan Blandford <jrb@redhat.com>
Author: Juerg Billeter <j@bitron.ch>
*/
#include "nautilus-cell-renderer-pixbuf-emblem.h"
static void nautilus_cell_renderer_pixbuf_emblem_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void nautilus_cell_renderer_pixbuf_emblem_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void nautilus_cell_renderer_pixbuf_emblem_init (NautilusCellRendererPixbufEmblem *cellpixbuf);
static void nautilus_cell_renderer_pixbuf_emblem_class_init (NautilusCellRendererPixbufEmblemClass *klass);
static void nautilus_cell_renderer_pixbuf_emblem_finalize (GObject *object);
static void nautilus_cell_renderer_pixbuf_emblem_create_stock_pixbuf (NautilusCellRendererPixbufEmblem *cellpixbuf,
GtkWidget *widget);
static void nautilus_cell_renderer_pixbuf_emblem_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *rectangle,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height);
static void nautilus_cell_renderer_pixbuf_emblem_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags);
enum {
PROP_ZERO,
PROP_PIXBUF,
PROP_PIXBUF_EXPANDER_OPEN,
PROP_PIXBUF_EXPANDER_CLOSED,
PROP_STOCK_ID,
PROP_STOCK_SIZE,
PROP_STOCK_DETAIL,
PROP_PIXBUF_EMBLEM
};
static gpointer parent_class;
#define CELLINFO_KEY "nautilus-cell-renderer-pixbuf-emblem-info"
typedef struct _NautilusCellRendererPixbufEmblemInfo NautilusCellRendererPixbufEmblemInfo;
struct _NautilusCellRendererPixbufEmblemInfo
{
gchar *stock_id;
GtkIconSize stock_size;
gchar *stock_detail;
};
GType
nautilus_cell_renderer_pixbuf_emblem_get_type (void)
{
static GType cell_pixbuf_type = 0;
if (!cell_pixbuf_type) {
static const GTypeInfo cell_pixbuf_info =
{
sizeof (NautilusCellRendererPixbufEmblemClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) nautilus_cell_renderer_pixbuf_emblem_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (NautilusCellRendererPixbufEmblem),
0, /* n_preallocs */
(GInstanceInitFunc) nautilus_cell_renderer_pixbuf_emblem_init,
};
cell_pixbuf_type = g_type_register_static (GTK_TYPE_CELL_RENDERER,
"NautilusCellRendererPixbufEmblem",
&cell_pixbuf_info, 0);
}
return cell_pixbuf_type;
}
static void
nautilus_cell_renderer_pixbuf_emblem_init (NautilusCellRendererPixbufEmblem *cellpixbuf)
{
NautilusCellRendererPixbufEmblemInfo *cellinfo;
cellinfo = g_new0 (NautilusCellRendererPixbufEmblemInfo, 1);
cellinfo->stock_size = GTK_ICON_SIZE_MENU;
g_object_set_data (G_OBJECT (cellpixbuf), CELLINFO_KEY, cellinfo);
}
static void
nautilus_cell_renderer_pixbuf_emblem_class_init (NautilusCellRendererPixbufEmblemClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = nautilus_cell_renderer_pixbuf_emblem_finalize;
object_class->get_property = nautilus_cell_renderer_pixbuf_emblem_get_property;
object_class->set_property = nautilus_cell_renderer_pixbuf_emblem_set_property;
cell_class->get_size = nautilus_cell_renderer_pixbuf_emblem_get_size;
cell_class->render = nautilus_cell_renderer_pixbuf_emblem_render;
g_object_class_install_property (object_class,
PROP_PIXBUF,
g_param_spec_object ("pixbuf",
"Pixbuf Object",
"The pixbuf to render",
GDK_TYPE_PIXBUF,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_PIXBUF_EXPANDER_OPEN,
g_param_spec_object ("pixbuf_expander_open",
"Pixbuf Expander Open",
"Pixbuf for open expander",
GDK_TYPE_PIXBUF,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_PIXBUF_EXPANDER_CLOSED,
g_param_spec_object ("pixbuf_expander_closed",
"Pixbuf Expander Closed",
"Pixbuf for closed expander",
GDK_TYPE_PIXBUF,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
g_object_class_install_property (object_class,
PROP_STOCK_ID,
g_param_spec_string ("stock_id",
"Stock ID",
"The stock ID of the stock icon to render",
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_STOCK_SIZE,
g_param_spec_enum ("stock_size",
"Size",
"The size of the rendered icon",
GTK_TYPE_ICON_SIZE,
GTK_ICON_SIZE_MENU,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_STOCK_DETAIL,
g_param_spec_string ("stock_detail",
"Detail",
"Render detail to pass to the theme engine",
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_PIXBUF_EMBLEM,
g_param_spec_object ("pixbuf_emblem",
"Pixbuf Emblem Object",
"The emblem to overlay",
GDK_TYPE_PIXBUF,
G_PARAM_READABLE |
G_PARAM_WRITABLE));
}
static void
nautilus_cell_renderer_pixbuf_emblem_finalize (GObject *object)
{
NautilusCellRendererPixbufEmblem *cellpixbuf = NAUTILUS_CELL_RENDERER_PIXBUF_EMBLEM (object);
NautilusCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (object, CELLINFO_KEY);
if (cellpixbuf->pixbuf && cellinfo->stock_id) {
g_object_unref (cellpixbuf->pixbuf);
}
if (cellinfo->stock_id) {
g_free (cellinfo->stock_id);
}
if (cellinfo->stock_detail) {
g_free (cellinfo->stock_detail);
}
g_free (cellinfo);
g_object_set_data (object, CELLINFO_KEY, NULL);
(* G_OBJECT_CLASS (parent_class)->finalize) (object);
}
static void
nautilus_cell_renderer_pixbuf_emblem_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
NautilusCellRendererPixbufEmblem *cellpixbuf = NAUTILUS_CELL_RENDERER_PIXBUF_EMBLEM (object);
NautilusCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (object, CELLINFO_KEY);
switch (param_id)
{
case PROP_PIXBUF:
g_value_set_object (value,
cellpixbuf->pixbuf ? G_OBJECT (cellpixbuf->pixbuf) : NULL);
break;
case PROP_PIXBUF_EXPANDER_OPEN:
g_value_set_object (value,
cellpixbuf->pixbuf_expander_open ? G_OBJECT (cellpixbuf->pixbuf_expander_open) : NULL);
break;
case PROP_PIXBUF_EXPANDER_CLOSED:
g_value_set_object (value,
cellpixbuf->pixbuf_expander_closed ? G_OBJECT (cellpixbuf->pixbuf_expander_closed) : NULL);
break;
case PROP_STOCK_ID:
g_value_set_string (value, cellinfo->stock_id);
break;
case PROP_STOCK_SIZE:
g_value_set_enum (value, cellinfo->stock_size);
break;
case PROP_STOCK_DETAIL:
g_value_set_string (value, cellinfo->stock_detail);
break;
case PROP_PIXBUF_EMBLEM:
g_value_set_object (value,
cellpixbuf->pixbuf_emblem ? G_OBJECT (cellpixbuf->pixbuf_emblem) : NULL);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
nautilus_cell_renderer_pixbuf_emblem_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GdkPixbuf *pixbuf;
NautilusCellRendererPixbufEmblem *cellpixbuf = NAUTILUS_CELL_RENDERER_PIXBUF_EMBLEM (object);
NautilusCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (object, CELLINFO_KEY);
switch (param_id)
{
case PROP_PIXBUF:
pixbuf = (GdkPixbuf*) g_value_get_object (value);
if (pixbuf) {
g_object_ref (pixbuf);
}
if (cellpixbuf->pixbuf) {
g_object_unref (cellpixbuf->pixbuf);
}
cellpixbuf->pixbuf = pixbuf;
break;
case PROP_PIXBUF_EXPANDER_OPEN:
pixbuf = (GdkPixbuf*) g_value_get_object (value);
if (pixbuf) {
g_object_ref (pixbuf);
}
if (cellpixbuf->pixbuf_expander_open) {
g_object_unref (cellpixbuf->pixbuf_expander_open);
}
cellpixbuf->pixbuf_expander_open = pixbuf;
break;
case PROP_PIXBUF_EXPANDER_CLOSED:
pixbuf = (GdkPixbuf*) g_value_get_object (value);
if (pixbuf) {
g_object_ref (pixbuf);
}
if (cellpixbuf->pixbuf_expander_closed) {
g_object_unref (cellpixbuf->pixbuf_expander_closed);
}
cellpixbuf->pixbuf_expander_closed = pixbuf;
break;
case PROP_STOCK_ID:
if (cellinfo->stock_id) {
g_free (cellinfo->stock_id);
}
cellinfo->stock_id = g_strdup (g_value_get_string (value));
break;
case PROP_STOCK_SIZE:
cellinfo->stock_size = g_value_get_enum (value);
break;
case PROP_STOCK_DETAIL:
if (cellinfo->stock_detail) {
g_free (cellinfo->stock_detail);
}
cellinfo->stock_detail = g_strdup (g_value_get_string (value));
break;
case PROP_PIXBUF_EMBLEM:
pixbuf = (GdkPixbuf *) g_value_get_object (value);
if (pixbuf) {
g_object_ref (pixbuf);
}
if (cellpixbuf->pixbuf_emblem) {
g_object_unref (cellpixbuf->pixbuf_emblem);
}
cellpixbuf->pixbuf_emblem = pixbuf;
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
GtkCellRenderer *
nautilus_cell_renderer_pixbuf_emblem_new (void)
{
return g_object_new (NAUTILUS_TYPE_CELL_RENDERER_PIXBUF_EMBLEM, NULL);
}
static void
nautilus_cell_renderer_pixbuf_emblem_create_stock_pixbuf (NautilusCellRendererPixbufEmblem *cellpixbuf,
GtkWidget *widget)
{
NautilusCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (G_OBJECT (cellpixbuf), CELLINFO_KEY);
if (cellpixbuf->pixbuf) {
g_object_unref (cellpixbuf->pixbuf);
}
cellpixbuf->pixbuf = gtk_widget_render_icon (widget,
cellinfo->stock_id,
cellinfo->stock_size,
cellinfo->stock_detail);
}
static void
nautilus_cell_renderer_pixbuf_emblem_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
NautilusCellRendererPixbufEmblem *cellpixbuf = (NautilusCellRendererPixbufEmblem *) cell;
NautilusCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (G_OBJECT (cell), CELLINFO_KEY);
gint pixbuf_width = 0;
gint pixbuf_height = 0;
gint calc_width;
gint calc_height;
if (!cellpixbuf->pixbuf && cellinfo->stock_id)
nautilus_cell_renderer_pixbuf_emblem_create_stock_pixbuf (cellpixbuf, widget);
if (cellpixbuf->pixbuf) {
pixbuf_width = gdk_pixbuf_get_width (cellpixbuf->pixbuf);
pixbuf_height = gdk_pixbuf_get_height (cellpixbuf->pixbuf);
}
if (cellpixbuf->pixbuf_expander_open) {
pixbuf_width = MAX (pixbuf_width, gdk_pixbuf_get_width (cellpixbuf->pixbuf_expander_open));
pixbuf_height = MAX (pixbuf_height, gdk_pixbuf_get_height (cellpixbuf->pixbuf_expander_open));
}
if (cellpixbuf->pixbuf_expander_closed) {
pixbuf_width = MAX (pixbuf_width, gdk_pixbuf_get_width (cellpixbuf->pixbuf_expander_closed));
pixbuf_height = MAX (pixbuf_height, gdk_pixbuf_get_height (cellpixbuf->pixbuf_expander_closed));
}
calc_width = (gint) cell->xpad * 2 + pixbuf_width;
calc_height = (gint) cell->ypad * 2 + pixbuf_height;
if (x_offset) *x_offset = 0;
if (y_offset) *y_offset = 0;
if (cell_area && pixbuf_width > 0 && pixbuf_height > 0) {
if (x_offset) {
*x_offset = (((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
1.0 - cell->xalign : cell->xalign) *
(cell_area->width - calc_width - 2 * cell->xpad));
*x_offset = MAX (*x_offset, 0) + cell->xpad;
}
if (y_offset) {
*y_offset = (cell->yalign *
(cell_area->height - calc_height - 2 * cell->ypad));
*y_offset = MAX (*y_offset, 0) + cell->ypad;
}
}
if (width)
*width = calc_width;
if (height)
*height = calc_height;
}
static void
nautilus_cell_renderer_pixbuf_emblem_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
GtkCellRendererState flags)
{
NautilusCellRendererPixbufEmblem *cellpixbuf = (NautilusCellRendererPixbufEmblem *) cell;
NautilusCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (G_OBJECT (cell), CELLINFO_KEY);
GdkPixbuf *pixbuf;
GdkRectangle pix_rect;
GdkRectangle pix_emblem_rect;
GdkRectangle draw_rect;
gboolean stock_pixbuf = FALSE;
pixbuf = cellpixbuf->pixbuf;
if (cell->is_expander) {
if (cell->is_expanded &&
cellpixbuf->pixbuf_expander_open != NULL) {
pixbuf = cellpixbuf->pixbuf_expander_open;
} else if (!cell->is_expanded &&
cellpixbuf->pixbuf_expander_closed != NULL) {
pixbuf = cellpixbuf->pixbuf_expander_closed;
}
}
if (!pixbuf && !cellinfo->stock_id) {
return;
} else if (!pixbuf && cellinfo->stock_id) {
stock_pixbuf = TRUE;
}
nautilus_cell_renderer_pixbuf_emblem_get_size (cell, widget, cell_area,
&pix_rect.x,
&pix_rect.y,
&pix_rect.width,
&pix_rect.height);
if (stock_pixbuf)
pixbuf = cellpixbuf->pixbuf;
pix_rect.x += cell_area->x;
pix_rect.y += cell_area->y;
pix_rect.width -= cell->xpad * 2;
pix_rect.height -= cell->ypad * 2;
if (gdk_rectangle_intersect (cell_area, &pix_rect, &draw_rect) &&
gdk_rectangle_intersect (expose_area, &draw_rect, &draw_rect)) {
gdk_draw_pixbuf (window,
widget->style->black_gc,
pixbuf,
/* pixbuf 0, 0 is at pix_rect.x, pix_rect.y */
draw_rect.x - pix_rect.x,
draw_rect.y - pix_rect.y,
draw_rect.x,
draw_rect.y,
draw_rect.width,
draw_rect.height,
GDK_RGB_DITHER_NORMAL,
0, 0);
}
if (cellpixbuf->pixbuf_emblem) {
pix_emblem_rect.width = gdk_pixbuf_get_width (cellpixbuf->pixbuf_emblem);
pix_emblem_rect.height = gdk_pixbuf_get_height (cellpixbuf->pixbuf_emblem);
pix_emblem_rect.x = pix_rect.x;
pix_emblem_rect.y = pix_rect.y + pix_rect.height - pix_emblem_rect.height;
if (gdk_rectangle_intersect (cell_area, &pix_emblem_rect, &draw_rect) &&
gdk_rectangle_intersect (expose_area, &draw_rect, &draw_rect)) {
gdk_draw_pixbuf (window,
widget->style->black_gc,
cellpixbuf->pixbuf_emblem,
/* pixbuf 0, 0 is at pix_emblem_rect.x, pix_emblem_rect.y */
draw_rect.x - pix_emblem_rect.x,
draw_rect.y - pix_emblem_rect.y,
draw_rect.x,
draw_rect.y,
draw_rect.width,
draw_rect.height,
GDK_RGB_DITHER_NORMAL,
0, 0);
}
}
}
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