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Diffstat (limited to 'libcaja-private/caja-cell-renderer-pixbuf-emblem.c')
-rw-r--r--libcaja-private/caja-cell-renderer-pixbuf-emblem.c519
1 files changed, 519 insertions, 0 deletions
diff --git a/libcaja-private/caja-cell-renderer-pixbuf-emblem.c b/libcaja-private/caja-cell-renderer-pixbuf-emblem.c
new file mode 100644
index 00000000..150e9eb2
--- /dev/null
+++ b/libcaja-private/caja-cell-renderer-pixbuf-emblem.c
@@ -0,0 +1,519 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*-
+
+ caja-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 <[email protected]>
+
+ Author: Juerg Billeter <[email protected]>
+*/
+
+#include "caja-cell-renderer-pixbuf-emblem.h"
+
+static void caja_cell_renderer_pixbuf_emblem_get_property (GObject *object,
+ guint param_id,
+ GValue *value,
+ GParamSpec *pspec);
+static void caja_cell_renderer_pixbuf_emblem_set_property (GObject *object,
+ guint param_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void caja_cell_renderer_pixbuf_emblem_init (CajaCellRendererPixbufEmblem *cellpixbuf);
+static void caja_cell_renderer_pixbuf_emblem_class_init (CajaCellRendererPixbufEmblemClass *klass);
+static void caja_cell_renderer_pixbuf_emblem_finalize (GObject *object);
+static void caja_cell_renderer_pixbuf_emblem_create_stock_pixbuf (CajaCellRendererPixbufEmblem *cellpixbuf,
+ GtkWidget *widget);
+static void caja_cell_renderer_pixbuf_emblem_get_size (GtkCellRenderer *cell,
+ GtkWidget *widget,
+ GdkRectangle *rectangle,
+ gint *x_offset,
+ gint *y_offset,
+ gint *width,
+ gint *height);
+static void caja_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
+};
+
+#define CELLINFO_KEY "caja-cell-renderer-pixbuf-emblem-info"
+
+typedef struct _CajaCellRendererPixbufEmblemInfo CajaCellRendererPixbufEmblemInfo;
+struct _CajaCellRendererPixbufEmblemInfo
+{
+ gchar *stock_id;
+ GtkIconSize stock_size;
+ gchar *stock_detail;
+};
+
+G_DEFINE_TYPE (CajaCellRendererPixbufEmblem, caja_cell_renderer_pixbuf_emblem, GTK_TYPE_CELL_RENDERER);
+
+static void
+caja_cell_renderer_pixbuf_emblem_init (CajaCellRendererPixbufEmblem *cellpixbuf)
+{
+ CajaCellRendererPixbufEmblemInfo *cellinfo;
+
+ cellinfo = g_new0 (CajaCellRendererPixbufEmblemInfo, 1);
+ cellinfo->stock_size = GTK_ICON_SIZE_MENU;
+ g_object_set_data (G_OBJECT (cellpixbuf), CELLINFO_KEY, cellinfo);
+}
+
+static void
+caja_cell_renderer_pixbuf_emblem_class_init (CajaCellRendererPixbufEmblemClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
+
+ object_class->finalize = caja_cell_renderer_pixbuf_emblem_finalize;
+
+ object_class->get_property = caja_cell_renderer_pixbuf_emblem_get_property;
+ object_class->set_property = caja_cell_renderer_pixbuf_emblem_set_property;
+
+ cell_class->get_size = caja_cell_renderer_pixbuf_emblem_get_size;
+ cell_class->render = caja_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
+caja_cell_renderer_pixbuf_emblem_finalize (GObject *object)
+{
+ CajaCellRendererPixbufEmblem *cellpixbuf = CAJA_CELL_RENDERER_PIXBUF_EMBLEM (object);
+ CajaCellRendererPixbufEmblemInfo *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 (caja_cell_renderer_pixbuf_emblem_parent_class)->finalize) (object);
+}
+
+static void
+caja_cell_renderer_pixbuf_emblem_get_property (GObject *object,
+ guint param_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ CajaCellRendererPixbufEmblem *cellpixbuf = CAJA_CELL_RENDERER_PIXBUF_EMBLEM (object);
+ CajaCellRendererPixbufEmblemInfo *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
+caja_cell_renderer_pixbuf_emblem_set_property (GObject *object,
+ guint param_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GdkPixbuf *pixbuf;
+ CajaCellRendererPixbufEmblem *cellpixbuf = CAJA_CELL_RENDERER_PIXBUF_EMBLEM (object);
+ CajaCellRendererPixbufEmblemInfo *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 *
+caja_cell_renderer_pixbuf_emblem_new (void)
+{
+ return g_object_new (CAJA_TYPE_CELL_RENDERER_PIXBUF_EMBLEM, NULL);
+}
+
+static void
+caja_cell_renderer_pixbuf_emblem_create_stock_pixbuf (CajaCellRendererPixbufEmblem *cellpixbuf,
+ GtkWidget *widget)
+{
+ CajaCellRendererPixbufEmblemInfo *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
+caja_cell_renderer_pixbuf_emblem_get_size (GtkCellRenderer *cell,
+ GtkWidget *widget,
+ GdkRectangle *cell_area,
+ gint *x_offset,
+ gint *y_offset,
+ gint *width,
+ gint *height)
+{
+ CajaCellRendererPixbufEmblem *cellpixbuf = (CajaCellRendererPixbufEmblem *) cell;
+ CajaCellRendererPixbufEmblemInfo *cellinfo = g_object_get_data (G_OBJECT (cell), CELLINFO_KEY);
+ gint pixbuf_width = 0;
+ gint pixbuf_height = 0;
+ gint calc_width;
+ gint calc_height;
+ gint xpad, ypad;
+
+ if (!cellpixbuf->pixbuf && cellinfo->stock_id)
+ caja_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));
+ }
+
+ gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
+ calc_width = xpad * 2 + pixbuf_width;
+ calc_height = 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)
+ {
+ gfloat xalign, yalign;
+
+ gtk_cell_renderer_get_alignment (cell, &xalign, &yalign);
+ if (x_offset)
+ {
+ *x_offset = (((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
+ 1.0 - xalign : xalign) *
+ (cell_area->width - calc_width - 2 * xpad));
+ *x_offset = MAX (*x_offset, 0) + xpad;
+ }
+ if (y_offset)
+ {
+ *y_offset = (yalign *
+ (cell_area->height - calc_height - 2 * ypad));
+ *y_offset = MAX (*y_offset, 0) + ypad;
+ }
+ }
+
+ if (width)
+ *width = calc_width;
+
+ if (height)
+ *height = calc_height;
+}
+
+static void
+caja_cell_renderer_pixbuf_emblem_render (GtkCellRenderer *cell,
+ GdkWindow *window,
+ GtkWidget *widget,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GdkRectangle *expose_area,
+ GtkCellRendererState flags)
+
+{
+ CajaCellRendererPixbufEmblem *cellpixbuf = (CajaCellRendererPixbufEmblem *) cell;
+ CajaCellRendererPixbufEmblemInfo *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;
+ gint xpad, ypad;
+ gboolean is_expander, is_expanded;
+
+ pixbuf = cellpixbuf->pixbuf;
+ g_object_get (cell,
+ "is-expander", &is_expander,
+ "is-expanded", &is_expanded,
+ NULL);
+ if (is_expander)
+ {
+ if (is_expanded &&
+ cellpixbuf->pixbuf_expander_open != NULL)
+ {
+ pixbuf = cellpixbuf->pixbuf_expander_open;
+ }
+ else if (!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;
+ }
+
+ caja_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;
+
+ gtk_cell_renderer_get_padding (cell, &xpad, &ypad);
+ pix_rect.x += cell_area->x;
+ pix_rect.y += cell_area->y;
+ pix_rect.width -= xpad * 2;
+ pix_rect.height -= 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,
+ gtk_widget_get_style (widget)->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,
+ gtk_widget_get_style (widget)->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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