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

1 files changed, 505 insertions, 0 deletions

diff --git a/libnautilus-private/nautilus-cell-renderer-pixbuf-emblem.c b/libnautilus-private/nautilus-cell-renderer-pixbuf-emblem.c
new file mode 100644
index 000000000..37026e3a1
--- /dev/null
+++ b/libnautilus-private/nautilus-cell-renderer-pixbuf-emblem.c
@@ -0,0 +1,505 @@
+/* -*- 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);
+		}
+	}
+}