forked from AuroraMiddleware/gtk
d9d8bda57e
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)
377 lines
12 KiB
C
377 lines
12 KiB
C
/* gtkcellrendererprogress.c
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* Copyright (C) 2002 Naba Kumar <kh_naba@users.sourceforge.net>
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* heavily modified by Jörgen Scheibengruber <mfcn@gmx.de>
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* heavily modified by Marco Pesenti Gritti <marco@gnome.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2004. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include "gtkcellrendererprogress.h"
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#include "gtkintl.h"
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#define GTK_CELL_RENDERER_PROGRESS_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), \
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GTK_TYPE_CELL_RENDERER_PROGRESS, \
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GtkCellRendererProgressPrivate))
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enum
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{
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PROP_0,
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PROP_VALUE,
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PROP_TEXT
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};
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struct _GtkCellRendererProgressPrivate
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{
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gint value;
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gchar *text;
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gchar *label;
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gint min_h;
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gint min_w;
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};
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static void gtk_cell_renderer_progress_finalize (GObject *object);
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static void gtk_cell_renderer_progress_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_cell_renderer_progress_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_cell_renderer_progress_set_value (GtkCellRendererProgress *cellprogress,
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gint value);
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static void gtk_cell_renderer_progress_set_text (GtkCellRendererProgress *cellprogress,
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const gchar *text);
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static void compute_dimensions (GtkCellRenderer *cell,
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GtkWidget *widget,
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const gchar *text,
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gint *width,
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gint *height);
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static void gtk_cell_renderer_progress_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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GdkRectangle *cell_area,
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gint *x_offset,
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gint *y_offset,
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gint *width,
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gint *height);
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static void gtk_cell_renderer_progress_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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guint flags);
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G_DEFINE_TYPE (GtkCellRendererProgress, gtk_cell_renderer_progress, GTK_TYPE_CELL_RENDERER);
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static void
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gtk_cell_renderer_progress_class_init (GtkCellRendererProgressClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
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object_class->finalize = gtk_cell_renderer_progress_finalize;
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object_class->get_property = gtk_cell_renderer_progress_get_property;
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object_class->set_property = gtk_cell_renderer_progress_set_property;
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cell_class->get_size = gtk_cell_renderer_progress_get_size;
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cell_class->render = gtk_cell_renderer_progress_render;
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/**
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* GtkCellRendererProgress:value:
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*
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* The "value" property determines the percentage to which the
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* progress bar will be "filled in".
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*
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* Since: 2.6
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**/
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g_object_class_install_property (object_class,
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PROP_VALUE,
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g_param_spec_int ("value",
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P_("Value"),
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P_("Value of the progress bar"),
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0, 100, 0,
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G_PARAM_READWRITE));
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/**
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* GtkCellRendererProgress:text:
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*
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* The "text" property determines the label which will be drawn
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* over the progress bar. Setting this property to %NULL causes the default
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* label to be displayed. Setting this property to an empty string causes
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* no label to be displayed.
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*
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* Since: 2.6
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**/
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g_object_class_install_property (object_class,
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PROP_TEXT,
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g_param_spec_string ("text",
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P_("Text"),
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P_("Text on the progress bar"),
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NULL,
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G_PARAM_READWRITE));
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g_type_class_add_private (object_class,
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sizeof (GtkCellRendererProgressPrivate));
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}
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static void
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gtk_cell_renderer_progress_init (GtkCellRendererProgress *cellprogress)
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{
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cellprogress->priv = GTK_CELL_RENDERER_PROGRESS_GET_PRIVATE (cellprogress);
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cellprogress->priv->value = 0;
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cellprogress->priv->text = NULL;
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cellprogress->priv->label = NULL;
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cellprogress->priv->min_w = -1;
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cellprogress->priv->min_h = -1;
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}
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/**
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* gtk_cell_renderer_progress_new:
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*
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* Creates a new #GtkCellRendererProgress.
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*
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* Return value: the new cell renderer
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*
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* Since: 2.6
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**/
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GtkCellRenderer*
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gtk_cell_renderer_progress_new (void)
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{
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return GTK_CELL_RENDERER (g_object_new (GTK_TYPE_CELL_RENDERER_PROGRESS, NULL));
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}
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static void
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gtk_cell_renderer_progress_finalize (GObject *object)
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{
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GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (object);
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g_free (cellprogress->priv->text);
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g_free (cellprogress->priv->label);
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G_OBJECT_CLASS (gtk_cell_renderer_progress_parent_class)->finalize (object);
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}
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static void
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gtk_cell_renderer_progress_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (object);
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switch (param_id)
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{
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case PROP_VALUE:
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g_value_set_int (value, cellprogress->priv->value);
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break;
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case PROP_TEXT:
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g_value_set_string (value, cellprogress->priv->text);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
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}
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}
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static void
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gtk_cell_renderer_progress_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (object);
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switch (param_id)
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{
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case PROP_VALUE:
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gtk_cell_renderer_progress_set_value (cellprogress,
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g_value_get_int (value));
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break;
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case PROP_TEXT:
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gtk_cell_renderer_progress_set_text (cellprogress,
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g_value_get_string (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
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}
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}
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static void
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gtk_cell_renderer_progress_set_value (GtkCellRendererProgress *cellprogress,
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gint value)
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{
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gchar *text;
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cellprogress->priv->value = value;
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if (cellprogress->priv->text)
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text = g_strdup (cellprogress->priv->text);
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else
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text = g_strdup_printf (Q_("progress bar label|%d %%"),
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cellprogress->priv->value);
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g_free (cellprogress->priv->label);
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cellprogress->priv->label = text;
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}
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static void
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gtk_cell_renderer_progress_set_text (GtkCellRendererProgress *cellprogress,
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const gchar *text)
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{
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gchar *new_text;
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new_text = g_strdup (text);
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g_free (cellprogress->priv->text);
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cellprogress->priv->text = new_text;
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/* Update the label */
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gtk_cell_renderer_progress_set_value (cellprogress, cellprogress->priv->value);
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}
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static void
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compute_dimensions (GtkCellRenderer *cell,
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GtkWidget *widget,
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const gchar *text,
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gint *width,
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gint *height)
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{
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PangoRectangle logical_rect;
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PangoLayout *layout;
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layout = gtk_widget_create_pango_layout (widget, text);
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pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
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if (width)
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*width = logical_rect.width + cell->xpad * 2 + widget->style->xthickness * 2;
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if (height)
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*height = logical_rect.height + cell->ypad * 2 + widget->style->ythickness * 2;
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g_object_unref (G_OBJECT (layout));
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}
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static void
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gtk_cell_renderer_progress_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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GdkRectangle *cell_area,
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gint *x_offset,
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gint *y_offset,
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gint *width,
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gint *height)
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{
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GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (cell);
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gint w, h;
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gchar *text;
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if (cellprogress->priv->min_w < 0)
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{
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text = g_strdup_printf (Q_("progress bar label|%d %%"), 100);
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compute_dimensions (cell, widget, text,
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&cellprogress->priv->min_w,
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&cellprogress->priv->min_h);
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g_free (text);
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}
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compute_dimensions (cell, widget, cellprogress->priv->label, &w, &h);
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if (width)
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*width = MAX (cellprogress->priv->min_w, w);
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if (height)
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*height = MIN (cellprogress->priv->min_h, h);
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}
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static void
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gtk_cell_renderer_progress_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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guint flags)
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{
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GtkCellRendererProgress *cellprogress = GTK_CELL_RENDERER_PROGRESS (cell);
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GdkGC *gc;
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PangoLayout *layout;
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PangoRectangle logical_rect;
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gint x, y, w, h, perc_w, pos;
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GdkRectangle clip;
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gboolean is_rtl;
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is_rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
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gc = gdk_gc_new (window);
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x = cell_area->x + cell->xpad;
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y = cell_area->y + cell->ypad;
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w = cell_area->width - cell->xpad * 2;
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h = cell_area->height - cell->ypad * 2;
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gdk_gc_set_rgb_fg_color (gc, &widget->style->fg[GTK_STATE_NORMAL]);
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gdk_draw_rectangle (window, gc, TRUE, x, y, w, h);
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x += widget->style->xthickness;
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y += widget->style->ythickness;
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w -= widget->style->xthickness * 2;
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h -= widget->style->ythickness * 2;
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gdk_gc_set_rgb_fg_color (gc, &widget->style->bg[GTK_STATE_NORMAL]);
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gdk_draw_rectangle (window, gc, TRUE, x, y, w, h);
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gdk_gc_set_rgb_fg_color (gc, &widget->style->bg[GTK_STATE_SELECTED]);
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perc_w = w * MAX (0, cellprogress->priv->value) / 100;
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gdk_draw_rectangle (window, gc, TRUE, is_rtl ? (x + w - perc_w) : x, y, perc_w, h);
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layout = gtk_widget_create_pango_layout (widget, cellprogress->priv->label);
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pango_layout_get_pixel_extents (layout, NULL, &logical_rect);
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pos = (w - logical_rect.width)/2;
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clip.x = x;
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clip.y = y;
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clip.width = is_rtl ? w - perc_w : perc_w;
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clip.height = h;
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gtk_paint_layout (widget->style, window,
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is_rtl ? GTK_STATE_NORMAL : GTK_STATE_SELECTED,
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FALSE, &clip, widget, "progressbar",
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x + pos, y + (h - logical_rect.height)/2,
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layout);
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clip.x = clip.x + clip.width;
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clip.width = w - clip.width;
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gtk_paint_layout (widget->style, window,
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is_rtl ? GTK_STATE_SELECTED : GTK_STATE_NORMAL,
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FALSE, &clip, widget, "progressbar",
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x + pos, y + (h - logical_rect.height)/2,
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layout);
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g_object_unref (G_OBJECT (layout));
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g_object_unref (G_OBJECT (gc));
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}
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