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-rw-r--r--lib/widgets/ephy-cell-renderer-progress.c308
1 files changed, 308 insertions, 0 deletions
diff --git a/lib/widgets/ephy-cell-renderer-progress.c b/lib/widgets/ephy-cell-renderer-progress.c
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+++ b/lib/widgets/ephy-cell-renderer-progress.c
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+/* 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.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <bonobo/bonobo-i18n.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 2
+#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);
+ }
+ g_object_notify (object, "value");
+}
+
+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));
+}