cellrenderericon.c

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/* cellrenderericon.c, based on:
 *
 * gtkcellrendererpixbuf.c
 * Copyright (C) 2000  Red Hat, Inc.,  Jonathan Blandford <[e-mail]>
 *
 * This 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.
 *
 * This 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 this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <stdlib.h>
#include "cellrenderericon.h"
#include "intl.h"


#define FIXED_ICON_SIZE_MAX 512

static void gqv_cell_renderer_icon_get_property(GObject		*object,
					        guint		param_id,
					        GValue		*value,
					        GParamSpec	*pspec);
static void gqv_cell_renderer_icon_set_property(GObject		*object,
						guint		param_id,
						const GValue	*value,
						GParamSpec	*pspec);
static void gqv_cell_renderer_icon_init(GQvCellRendererIcon *celltext);
static void gqv_cell_renderer_icon_class_init(GQvCellRendererIconClass *class);
static void gqv_cell_renderer_icon_finalize(GObject *object);
static void gqv_cell_renderer_icon_get_size(GtkCellRenderer	*cell,
					    GtkWidget		*widget,
					    GdkRectangle	*rectangle,
					    gint		*x_offset,
					    gint		*y_offset,
					    gint		*width,
					    gint		*height);
static void gqv_cell_renderer_icon_render(GtkCellRenderer	*cell,
					   GdkWindow		*window,
					   GtkWidget		*widget,
					   GdkRectangle		*background_area,
					   GdkRectangle		*cell_area,
					   GdkRectangle		*expose_area,
					   GtkCellRendererState	flags);


enum {
	PROP_ZERO,
	PROP_PIXBUF,
	PROP_TEXT,
	PROP_BACKGROUND_GDK,
	PROP_FOREGROUND_GDK,
	PROP_FOCUSED,
	PROP_FIXED_WIDTH,
	PROP_FIXED_HEIGHT,

	PROP_BACKGROUND_SET,
	PROP_FOREGROUND_SET,
	PROP_SHOW_TEXT
};

static gpointer parent_class;

GType
gqv_cell_renderer_icon_get_type (void)
{
	static GType cell_icon_type = 0;

	if (!cell_icon_type)
		{
		static const GTypeInfo cell_icon_info =
			{
			sizeof (GQvCellRendererIconClass),
			NULL,		/* base_init */
			NULL,		/* base_finalize */
			(GClassInitFunc) gqv_cell_renderer_icon_class_init,
			NULL,		/* class_finalize */
			NULL,		/* class_data */
			sizeof (GQvCellRendererIcon),
			0,		/* n_preallocs */
		(GInstanceInitFunc) gqv_cell_renderer_icon_init,
		};

	cell_icon_type = g_type_register_static(GTK_TYPE_CELL_RENDERER,
					        "GQvCellRendererIcon",
						&cell_icon_info, 0);
	}

	return cell_icon_type;
}

static void
gqv_cell_renderer_icon_init (GQvCellRendererIcon *cellicon)
{
	GTK_CELL_RENDERER(cellicon)->xpad = 2;
	GTK_CELL_RENDERER(cellicon)->ypad = 2;
}

static void
gqv_cell_renderer_icon_class_init (GQvCellRendererIconClass *class)
{
	GObjectClass *object_class = G_OBJECT_CLASS (class);
	GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (class);

	parent_class = g_type_class_peek_parent (class);

	object_class->finalize = gqv_cell_renderer_icon_finalize;

	object_class->get_property = gqv_cell_renderer_icon_get_property;
	object_class->set_property = gqv_cell_renderer_icon_set_property;

	cell_class->get_size = gqv_cell_renderer_icon_get_size;
	cell_class->render = gqv_cell_renderer_icon_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_READWRITE));

	g_object_class_install_property(object_class,
					PROP_TEXT,
					g_param_spec_string("text",
							_("Text"),
							_("Text to render"),
							NULL,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_BACKGROUND_GDK,
					g_param_spec_boxed("background_gdk",
							_("Background color"),
							_("Background color as a GdkColor"),
							GDK_TYPE_COLOR,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_FOREGROUND_GDK,
					g_param_spec_boxed("foreground_gdk",
							_("Foreground color"),
							_("Foreground color as a GdkColor"),
							GDK_TYPE_COLOR,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_FOCUSED,
					g_param_spec_boolean ("has_focus",
							_("Focus"),
							_("Draw focus indicator"),
							FALSE,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_FIXED_WIDTH,
					g_param_spec_int("fixed_width",
							_("Fixed width"),
							_("Width of cell"),
							-1, FIXED_ICON_SIZE_MAX,
							-1,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_FIXED_HEIGHT,
					g_param_spec_int("fixed_height",
							_("Fixed height"),
							_("Height of icon excluding text"),
							-1, FIXED_ICON_SIZE_MAX,
							-1,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_BACKGROUND_SET,
					g_param_spec_boolean("background_set",
							_("Background set"),
							_("Whether this tag affects the background color"),
							FALSE,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_FOREGROUND_SET,
					g_param_spec_boolean ("foreground_set",
							_("Foreground set"),
							_("Whether this tag affects the foreground color"),
							FALSE,
							G_PARAM_READWRITE));

	g_object_class_install_property(object_class,
					PROP_SHOW_TEXT,
					g_param_spec_boolean("show_text",
							_("Show text"),
							_("Whether the text is displayed"),
							TRUE,
							G_PARAM_READWRITE));
}

static void
gqv_cell_renderer_icon_finalize (GObject *object)
{
	GQvCellRendererIcon *cellicon = GQV_CELL_RENDERER_ICON (object);

	if (cellicon->pixbuf) g_object_unref (cellicon->pixbuf);

	g_free(cellicon->text);

	(* G_OBJECT_CLASS (parent_class)->finalize) (object);
}

static void
gqv_cell_renderer_icon_get_property(GObject	*object,
				    guint	param_id,
				    GValue	*value,
				    GParamSpec	*pspec)
{
	GQvCellRendererIcon *cellicon = GQV_CELL_RENDERER_ICON (object);
  
	switch (param_id)
		{
		case PROP_PIXBUF:
		g_value_set_object(value,
      				   cellicon->pixbuf ? G_OBJECT (cellicon->pixbuf) : NULL);
		break;
	case PROP_TEXT:
		g_value_set_string (value, cellicon->text);
		break;
	case PROP_BACKGROUND_GDK:
		{
		GdkColor color;

		color.red = cellicon->background.red;
		color.green = cellicon->background.green;
		color.blue = cellicon->background.blue;

		g_value_set_boxed (value, &color);
		}
		break;
	case PROP_FOREGROUND_GDK:
		{
		GdkColor color;

		color.red = cellicon->foreground.red;
		color.green = cellicon->foreground.green;
		color.blue = cellicon->foreground.blue;

		g_value_set_boxed (value, &color);
		}
		break;
	case PROP_FOCUSED:
		g_value_set_boolean (value, cellicon->focused);
		break;
	case PROP_FIXED_WIDTH:
		g_value_set_int(value, cellicon->fixed_width);
		break;
	case PROP_FIXED_HEIGHT:
		g_value_set_int(value, cellicon->fixed_height);
		break;
	case PROP_BACKGROUND_SET:
		g_value_set_boolean(value, cellicon->background_set);
		break;
	case PROP_FOREGROUND_SET:
		g_value_set_boolean(value, cellicon->foreground_set);
		break;
	case PROP_SHOW_TEXT:
		g_value_set_boolean(value, cellicon->show_text);
		break;
	default:
		G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
		break;
	}
}

static void
set_bg_color (GQvCellRendererIcon *cellicon,
	      GdkColor		  *color)
{
	if (color)
		{
		if (!cellicon->background_set)
			{
			cellicon->background_set = TRUE;
			g_object_notify(G_OBJECT(cellicon), "background_set");
			}

		cellicon->background.red = color->red;
		cellicon->background.green = color->green;
		cellicon->background.blue = color->blue;
		}
	else
		{
		if (cellicon->background_set)
			{
			cellicon->background_set = FALSE;
			g_object_notify(G_OBJECT(cellicon), "background_set");
			}
		}
}

static void set_fg_color (GQvCellRendererIcon *cellicon,
			  GdkColor	      *color)
{
	if (color)
		{
		if (!cellicon->foreground_set)
			{
			cellicon->foreground_set = TRUE;
			g_object_notify(G_OBJECT(cellicon), "foreground_set");
			}

		cellicon->foreground.red = color->red;
		cellicon->foreground.green = color->green;
		cellicon->foreground.blue = color->blue;
		}