401 lines
12 KiB
C
401 lines
12 KiB
C
/* 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 "gtkprivate.h"
|
|
#include "gtkintl.h"
|
|
#include "gtkalias.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,
|
|
GTK_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,
|
|
GTK_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 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
|
|
/* do not translate the part before the | */
|
|
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 (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);
|
|
|
|
/* FIXME: at the moment cell_area is only set when we are requesting
|
|
* the size for drawing the focus rectangle. We now just return
|
|
* the last size we used for drawing the progress bar, which will
|
|
* work for now. Not a really nice solution though.
|
|
*/
|
|
if (cell_area)
|
|
{
|
|
if (width)
|
|
*width = cell_area->width;
|
|
if (height)
|
|
*height = cell_area->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)
|
|
{
|
|
GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (cell);
|
|
PangoLayout *layout;
|
|
PangoRectangle logical_rect;
|
|
gint x, y, w, h, perc_w, pos;
|
|
GdkRectangle clip;
|
|
gboolean is_rtl;
|
|
cairo_t *cr;
|
|
|
|
is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
|
|
|
|
cr = gdk_cairo_create (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;
|
|
|
|
cairo_rectangle (cr, x, y, w, h);
|
|
gdk_cairo_set_source_color (cr, &widget->style->fg[GTK_STATE_NORMAL]);
|
|
cairo_fill (cr);
|
|
|
|
x += widget->style->xthickness;
|
|
y += widget->style->ythickness;
|
|
w -= widget->style->xthickness * 2;
|
|
h -= widget->style->ythickness * 2;
|
|
|
|
cairo_rectangle (cr, x, y, w, h);
|
|
gdk_cairo_set_source_color (cr, &widget->style->bg[GTK_STATE_NORMAL]);
|
|
cairo_fill (cr);
|
|
|
|
perc_w = w * MAX (0, cellprogress->priv->value) / 100;
|
|
|
|
cairo_rectangle (cr, is_rtl ? (x + w - perc_w) : x, y, perc_w, h);
|
|
gdk_cairo_set_source_color (cr, &widget->style->bg[GTK_STATE_SELECTED]);
|
|
cairo_fill (cr);
|
|
|
|
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 (layout);
|
|
cairo_destroy (cr);
|
|
}
|
|
|
|
#define __GTK_CELL_RENDERER_PROGRESS_C__
|
|
#include "gtkaliasdef.c"
|