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gtk/gtk/gtkcellrendererprogress.c
Matthias Clasen d9d8bda57e Add a Q_() macro. 
Sun May 16 22:27:17 2004  Matthias Clasen  <maclas@gmx.de>

	* gtk/gtkintl.h (Q_): Add a Q_() macro.

	* gtk/gtkcellrendererprogress.h: Remove GTK_PROGRESS_CELL_UNKNOWN
	and GTK_PROGRESS_CELL_FAILED. With the ability the set the label,
	they are not really needed.

	* gtk/gtkcellrendererprogress.c: Use the xpad and ypad properties
	instead of hardwired padding, use Q_() for the default label,
	compute a reasonable minimal size.  (#142571, #142572, #142573,
	Tommi Komulainen, Christian Persch)
2004-05-17 02:33:18 +00:00

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/* gtkcellrendererprogress.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.
*/
/*
* Modified by the GTK+ Team and others 1997-2004. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <stdlib.h>
#include "gtkcellrendererprogress.h"
#include "gtkintl.h"
#define GTK_CELL_RENDERER_PROGRESS_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), \
GTK_TYPE_CELL_RENDERER_PROGRESS, \
GtkCellRendererProgressPrivate))
enum
{
PROP_0,
PROP_VALUE,
PROP_TEXT
};
struct _GtkCellRendererProgressPrivate
{
gint value;
gchar *text;
gchar *label;
gint min_h;
gint min_w;
};
static void gtk_cell_renderer_progress_finalize (GObject *object);
static void gtk_cell_renderer_progress_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void gtk_cell_renderer_progress_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_cell_renderer_progress_set_value (GtkCellRendererProgress *cellprogress,
gint value);
static void gtk_cell_renderer_progress_set_text (GtkCellRendererProgress *cellprogress,
const gchar *text);
static void compute_dimensions (GtkCellRenderer *cell,
GtkWidget *widget,
const gchar *text,
gint *width,
gint *height);
static void gtk_cell_renderer_progress_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height);
static void gtk_cell_renderer_progress_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
guint flags);
G_DEFINE_TYPE (GtkCellRendererProgress, gtk_cell_renderer_progress, GTK_TYPE_CELL_RENDERER);
static void
gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
object_class->finalize = gtk_cell_renderer_progress_finalize;
object_class->get_property = gtk_cell_renderer_progress_get_property;
object_class->set_property = gtk_cell_renderer_progress_set_property;
cell_class->get_size = gtk_cell_renderer_progress_get_size;
cell_class->render = gtk_cell_renderer_progress_render;
/**
* GtkCellRendererProgress:value:
*
* The "value" property determines the percentage to which the
* progress bar will be "filled in".
*
* Since: 2.6
**/
g_object_class_install_property (object_class,
PROP_VALUE,
g_param_spec_int ("value",
P_("Value"),
P_("Value of the progress bar"),
0, 100, 0,
G_PARAM_READWRITE));
/**
* GtkCellRendererProgress:text:
*
* The "text" property determines the label which will be drawn
* over the progress bar. Setting this property to %NULL causes the default
* label to be displayed. Setting this property to an empty string causes
* no label to be displayed.
*
* Since: 2.6
**/
g_object_class_install_property (object_class,
PROP_TEXT,
g_param_spec_string ("text",
P_("Text"),
P_("Text on the progress bar"),
NULL,
G_PARAM_READWRITE));
g_type_class_add_private (object_class,
sizeof (GtkCellRendererProgressPrivate));
}
static void
gtk_cell_renderer_progress_init (GtkCellRendererProgress *cellprogress)
{
cellprogress->priv = GTK_CELL_RENDERER_PROGRESS_GET_PRIVATE (cellprogress);
cellprogress->priv->value = 0;
cellprogress->priv->text = NULL;
cellprogress->priv->label = NULL;
cellprogress->priv->min_w = -1;
cellprogress->priv->min_h = -1;
}
/**
* gtk_cell_renderer_progress_new:
*
* Creates a new #GtkCellRendererProgress.
*
* Return value: the new cell renderer
*
* Since: 2.6
**/
GtkCellRenderer*
gtk_cell_renderer_progress_new (void)
{
return GTK_CELL_RENDERER (g_object_new (GTK_TYPE_CELL_RENDERER_PROGRESS, NULL));
}
static void
gtk_cell_renderer_progress_finalize (GObject *object)
{
GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (object);
g_free (cellprogress->priv->text);
g_free (cellprogress->priv->label);
G_OBJECT_CLASS (gtk_cell_renderer_progress_parent_class)->finalize (object);
}
static void
gtk_cell_renderer_progress_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (object);
switch (param_id)
{
case PROP_VALUE:
g_value_set_int (value, cellprogress->priv->value);
break;
case PROP_TEXT:
g_value_set_string (value, cellprogress->priv->text);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
}
static void
gtk_cell_renderer_progress_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (object);
switch (param_id)
{
case PROP_VALUE:
gtk_cell_renderer_progress_set_value (cellprogress,
g_value_get_int (value));
break;
case PROP_TEXT:
gtk_cell_renderer_progress_set_text (cellprogress,
g_value_get_string (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
}
}
static void
gtk_cell_renderer_progress_set_value (GtkCellRendererProgress *cellprogress,
gint value)
{
gchar *text;
cellprogress->priv->value = value;
if (cellprogress->priv->text)
text = g_strdup (cellprogress->priv->text);
else
text = g_strdup_printf (Q_("progress bar label|%d %%"),
cellprogress->priv->value);
g_free (cellprogress->priv->label);
cellprogress->priv->label = text;
}
static void
gtk_cell_renderer_progress_set_text (GtkCellRendererProgress *cellprogress,
const gchar *text)
{
gchar *new_text;
new_text = g_strdup (text);
g_free (cellprogress->priv->text);
cellprogress->priv->text = new_text;
/* Update the label */
gtk_cell_renderer_progress_set_value (cellprogress, cellprogress->priv->value);
}
static void
compute_dimensions (GtkCellRenderer *cell,
GtkWidget *widget,
const gchar *text,
gint *width,
gint *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 + cell->xpad * 2 + widget->style->xthickness * 2;
if (height)
*height = logical_rect.height + cell->ypad * 2 + widget->style->ythickness * 2;
g_object_unref (G_OBJECT (layout));
}
static void
gtk_cell_renderer_progress_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (cell);
gint w, h;
gchar *text;
if (cellprogress->priv->min_w < 0)
{
text = g_strdup_printf (Q_("progress bar label|%d %%"), 100);
compute_dimensions (cell, widget, text,
&cellprogress->priv->min_w,
&cellprogress->priv->min_h);
g_free (text);
}
compute_dimensions (cell, widget, cellprogress->priv->label, &w, &h);
if (width)
*width = MAX (cellprogress->priv->min_w, w);
if (height)
*height = MIN (cellprogress->priv->min_h, h);
}
static void
gtk_cell_renderer_progress_render (GtkCellRenderer *cell,
GdkWindow *window,
GtkWidget *widget,
GdkRectangle *background_area,
GdkRectangle *cell_area,
GdkRectangle *expose_area,
guint flags)
{
GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (cell);
GdkGC *gc;
PangoLayout *layout;
PangoRectangle logical_rect;
gint x, y, w, h, perc_w, pos;
GdkRectangle clip;
gboolean is_rtl;
is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
gc = gdk_gc_new (window);
x = cell_area->x + cell->xpad;
y = cell_area->y + cell->ypad;
w = cell_area->width - cell->xpad * 2;
h = cell_area->height - cell->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 * MAX (0, cellprogress->priv->value) / 100;
gdk_draw_rectangle (window, gc, TRUE, is_rtl ? (x + w - perc_w) : x, y, perc_w, h);
layout = gtk_widget_create_pango_layout (widget, cellprogress->priv->label);
pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
pos = (w - logical_rect.width)/2;
clip.x = x;
clip.y = y;
clip.width = is_rtl ? w - perc_w : perc_w;
clip.height = h;
gtk_paint_layout (widget->style, window,
is_rtl ? GTK_STATE_NORMAL : GTK_STATE_SELECTED,
FALSE, &clip, widget, "progressbar",
x + pos, y + (h - logical_rect.height)/2,
layout);
clip.x = clip.x + clip.width;
clip.width = w - clip.width;
gtk_paint_layout (widget->style, window,
is_rtl ? GTK_STATE_SELECTED : GTK_STATE_NORMAL,
FALSE, &clip, widget, "progressbar",
x + pos, y + (h - logical_rect.height)/2,
layout);
g_object_unref (G_OBJECT (layout));
g_object_unref (G_OBJECT (gc));
}
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