/* gtkcellrenderer.c
* Copyright (C) 2002 Naba Kumar <kh_naba@users.sourceforge.net>
* heavily modified by Jörgen Scheibengruber <mfcn@gmx.de>
* heavily modified by Marco Pesenti Gritti <marco@gnome.org>
*
* 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.
*
* $Id$
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <glib/gi18n.h>
#include "ephy-cell-renderer-progress.h"
static void ephy_cell_renderer_progress_init (EphyCellRendererProgress *celltext);
static void ephy_cell_renderer_progress_class_init (EphyCellRendererProgressClass *class);
#define EPHY_CELL_RENDERER_PROGRESS_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_CELL_RENDERER_PROGRESS, EphyCellRendererProgressPrivate))
#define XPAD 4
#define YPAD 8
#define UNKNOWN_STRING _("Unknown")
enum
{
PROP_0,
PROP_VALUE
};
struct _EphyCellRendererProgressPrivate
{
int value;
char *text;
int min_h;
int min_w;
};
static gpointer parent_class;
GtkType
ephy_cell_renderer_progress_get_type (void)
{
static GtkType cell_progress_type = 0;
if (!cell_progress_type)
{
static const GTypeInfo cell_progress_info =
{
sizeof (EphyCellRendererProgressClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) ephy_cell_renderer_progress_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (EphyCellRendererProgress),
0, /* n_preallocs */
(GInstanceInitFunc) ephy_cell_renderer_progress_init,
};
cell_progress_type = g_type_register_static (GTK_TYPE_CELL_RENDERER,
"EphyCellRendererProgress",
&cell_progress_info, 0);
}
return cell_progress_type;
}
static void
ephy_cell_renderer_progress_init (EphyCellRendererProgress *cellprogress)
{
cellprogress->priv = EPHY_CELL_RENDERER_PROGRESS_GET_PRIVATE (cellprogress);
cellprogress->priv->value = 0;
cellprogress->priv->text = NULL;
cellprogress->priv->min_w = -1;
}
static void
ephy_cell_renderer_progress_set_value (EphyCellRendererProgress *cellprogress, int value)
{
char *text;
cellprogress->priv->value = value;
if (cellprogress->priv->value == EPHY_PROGRESS_CELL_FAILED)
{
text = g_strdup (_("Failed"));
}
else if (cellprogress->priv->value == EPHY_PROGRESS_CELL_UNKNOWN)
{
text = g_strdup (UNKNOWN_STRING);
}
else
{
text = g_strdup_printf ("%d %%", cellprogress->priv->value);
}
g_free (cellprogress->priv->text);
cellprogress->priv->text = text;
}
static void
ephy_cell_renderer_progress_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
EphyCellRendererProgress *cellprogress = EPHY_CELL_RENDERER_PROGRESS (object);
switch (param_id)
{
case PROP_VALUE:
g_value_set_int (value, cellprogress->priv->value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
}
static void
ephy_cell_renderer_progress_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
EphyCellRendererProgress *cellprogress = EPHY_CELL_RENDERER_PROGRESS (object);
switch (param_id)
{
case PROP_VALUE:
ephy_cell_renderer_progress_set_value
(cellprogress, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
}
static void
compute_dimensions (GtkWidget *widget, const char *text, int *width, int *height)
{
PangoRectangle logical_rect;
PangoLayout *layout;
layout = gtk_widget_create_pango_layout (widget, text);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
if (width)
{
*width = logical_rect.width + XPAD * 2 +
widget->style->xthickness * 2;
}
if (height)
{
*height = logical_rect.height + YPAD * 2 +
widget->style->ythickness * 2;
}
g_object_unref (G_OBJECT (layout));
}
static void
ephy_cell_renderer_progress_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
EphyCellRendererProgress *cellprogress = EPHY_CELL_RENDERER_PROGRESS (cell);
int w, h;
if (cellprogress->priv->min_w < 0)
{
compute_dimensions (widget, UNKNOWN_STRING,
&cellprogress->priv->min_w,
&cellprogress->priv->min_h);
}
compute_dimensions (widget, cellprogress->priv->text, &w, &h);
if (width)
{
*width = MAX (cellprogress->priv->min_w, w);
}
if (height)
{
*height = MIN (cellprogress->priv->min_h, h);
}
}
GtkCellRenderer*
ephy_cell_renderer_progress_new (void)
{
return GTK_CELL_RENDERER (g_object_new (ephy_cell_renderer_progress_get_type (), NULL));
}
static void
ephy_cell_renderer_progress_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
guint flags)
{
EphyCellRendererProgress *cellprogress = (EphyCellRendererProgress *) cell;
GdkGC *gc;
PangoLayout *layout;
PangoRectangle logical_rect;
GtkStateType state;
int x, y, w, h, perc_w, pos;
gc = gdk_gc_new (window);
x = cell_area->x + XPAD;
y = cell_area->y + YPAD;
w = cell_area->width - XPAD * 2;
h = cell_area->height - YPAD * 2;
gdk_gc_set_rgb_fg_color (gc, &widget->style->fg[GTK_STATE_NORMAL]);
gdk_draw_rectangle (window, gc, TRUE, x, y, w, h);
x += widget->style->xthickness;
y += widget->style->ythickness;
w -= widget->style->xthickness * 2;
h -= widget->style->ythickness * 2;
gdk_gc_set_rgb_fg_color (gc, &widget->style->bg[GTK_STATE_NORMAL]);
gdk_draw_rectangle (window, gc, TRUE, x, y, w, h);
gdk_gc_set_rgb_fg_color (gc, &widget->style->bg[GTK_STATE_SELECTED]);
perc_w = w * cellprogress->priv->value / 100;
gdk_draw_rectangle (window, gc, TRUE, x, y, perc_w, h);
layout = gtk_widget_create_pango_layout (widget, cellprogress->priv->text);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
pos = (w - logical_rect.width)/2;
if (perc_w < pos + logical_rect.width/2)
{
state = GTK_STATE_NORMAL;
}
else
{
state = GTK_STATE_SELECTED;
}
gtk_paint_layout (widget->style, window, state,
FALSE, cell_area, widget, "progressbar",
x + pos, y + (h - logical_rect.height)/2,
layout);
g_object_unref (G_OBJECT (layout));
g_object_unref (G_OBJECT (gc));
}
static void
ephy_cell_renderer_progress_finalize (GObject *object)
{
EphyCellRendererProgress *cellprogress = EPHY_CELL_RENDERER_PROGRESS (object);
g_free (cellprogress->priv->text);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
ephy_cell_renderer_progress_class_init (EphyCellRendererProgressClass *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 = ephy_cell_renderer_progress_finalize;
object_class->get_property = ephy_cell_renderer_progress_get_property;
object_class->set_property = ephy_cell_renderer_progress_set_property;
cell_class->get_size = ephy_cell_renderer_progress_get_size;
cell_class->render = ephy_cell_renderer_progress_render;
g_object_class_install_property (object_class,
PROP_VALUE,
g_param_spec_int ("value",
"Value",
"Value of the progress bar.",
-2, 100, 0,
G_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (EphyCellRendererProgressPrivate));
}
