1 /* GTK - The GIMP Toolkit
3 * Copyright (C) 2009 Matthias Clasen <mclasen@redhat.com>
4 * Copyright (C) 2008 Richard Hughes <richard@hughsie.com>
5 * Copyright (C) 2009 Bastien Nocera <hadess@hadess.net>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 * Modified by the GTK+ Team and others 2007. See the AUTHORS
25 * file for a list of people on the GTK+ Team. See the ChangeLog
26 * files for a list of changes. These files are distributed with
27 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
32 #include "gtkcellrendererspinner.h"
33 #include "gtkiconfactory.h"
34 #include "gtkicontheme.h"
39 * SECTION:gtkcellrendererspinner
40 * @Short_description: Renders a spinning animation in a cell
41 * @Title: GtkCellRendererSpinner
42 * @See_also: #GtkSpinner, #GtkCellRendererProgress
44 * GtkCellRendererSpinner renders a spinning animation in a cell, very
45 * similar to #GtkSpinner. It can often be used as an alternative
46 * to a #GtkCellRendererProgress for displaying indefinite activity,
47 * instead of actual progress.
49 * To start the animation in a cell, set the #GtkCellRendererSpinner:active
50 * property to %TRUE and increment the #GtkCellRendererSpinner:pulse property
51 * at regular intervals. The usual way to set the cell renderer properties
52 * for each cell is to bind them to columns in your tree model using e.g.
53 * gtk_tree_view_column_add_attribute().
64 struct _GtkCellRendererSpinnerPrivate
68 GtkIconSize icon_size, old_icon_size;
73 static void gtk_cell_renderer_spinner_get_property (GObject *object,
77 static void gtk_cell_renderer_spinner_set_property (GObject *object,
81 static void gtk_cell_renderer_spinner_get_size (GtkCellRenderer *cell,
83 GdkRectangle *cell_area,
88 static void gtk_cell_renderer_spinner_render (GtkCellRenderer *cell,
91 GdkRectangle *background_area,
92 GdkRectangle *cell_area,
93 GdkRectangle *expose_area,
96 G_DEFINE_TYPE (GtkCellRendererSpinner, gtk_cell_renderer_spinner, GTK_TYPE_CELL_RENDERER)
99 gtk_cell_renderer_spinner_class_init (GtkCellRendererSpinnerClass *klass)
101 GObjectClass *object_class = G_OBJECT_CLASS (klass);
102 GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS (klass);
104 object_class->get_property = gtk_cell_renderer_spinner_get_property;
105 object_class->set_property = gtk_cell_renderer_spinner_set_property;
107 cell_class->get_size = gtk_cell_renderer_spinner_get_size;
108 cell_class->render = gtk_cell_renderer_spinner_render;
110 /* GtkCellRendererSpinner:active:
112 * Whether the spinner is active (ie. shown) in the cell
116 g_object_class_install_property (object_class,
118 g_param_spec_boolean ("active",
120 P_("Whether the spinner is active (ie. shown) in the cell"),
124 * GtkCellRendererSpinner:pulse:
126 * Pulse of the spinner. Increment this value to draw the next frame of the
127 * spinner animation. Usually, you would update this value in a timeout.
129 * The #GtkSpinner widget draws one full cycle of the animation per second by default.
130 * You can learn about the number of frames used by the theme
131 * by looking at the #GtkSpinner:num-steps style property and the duration
132 * of the cycle by looking at #GtkSpinner:cycle-duration.
136 g_object_class_install_property (object_class,
138 g_param_spec_uint ("pulse",
140 P_("Pulse of the spinner"),
144 * GtkCellRendererSpinner:size:
146 * The #GtkIconSize value that specifies the size of the rendered spinner.
150 g_object_class_install_property (object_class,
152 g_param_spec_enum ("size",
154 P_("The GtkIconSize value that specifies the size of the rendered spinner"),
155 GTK_TYPE_ICON_SIZE, GTK_ICON_SIZE_MENU,
159 g_type_class_add_private (object_class, sizeof (GtkCellRendererSpinnerPrivate));
163 gtk_cell_renderer_spinner_init (GtkCellRendererSpinner *cell)
165 cell->priv = G_TYPE_INSTANCE_GET_PRIVATE (cell,
166 GTK_TYPE_CELL_RENDERER_SPINNER,
167 GtkCellRendererSpinnerPrivate);
169 cell->priv->pulse = 0;
170 cell->priv->old_icon_size = GTK_ICON_SIZE_INVALID;
171 cell->priv->icon_size = GTK_ICON_SIZE_MENU;
175 * gtk_cell_renderer_spinner_new
177 * Returns a new cell renderer which will show a spinner to indicate
180 * Return value: a new #GtkCellRenderer
185 gtk_cell_renderer_spinner_new (void)
187 return g_object_new (GTK_TYPE_CELL_RENDERER_SPINNER, NULL);
191 gtk_cell_renderer_spinner_update_size (GtkCellRendererSpinner *cell,
194 GtkCellRendererSpinnerPrivate *priv = cell->priv;
196 GtkIconTheme *icon_theme;
197 GtkSettings *settings;
199 if (cell->priv->old_icon_size == cell->priv->icon_size)
202 screen = gtk_widget_get_screen (GTK_WIDGET (widget));
203 icon_theme = gtk_icon_theme_get_for_screen (screen);
204 settings = gtk_settings_get_for_screen (screen);
206 if (!gtk_icon_size_lookup_for_settings (settings, priv->icon_size, &priv->size, NULL))
208 g_warning ("Invalid icon size %u\n", priv->icon_size);
214 gtk_cell_renderer_spinner_get_property (GObject *object,
219 GtkCellRendererSpinner *cell = GTK_CELL_RENDERER_SPINNER (object);
220 GtkCellRendererSpinnerPrivate *priv = cell->priv;
225 g_value_set_boolean (value, priv->active);
228 g_value_set_uint (value, priv->pulse);
231 g_value_set_enum (value, priv->icon_size);
234 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
239 gtk_cell_renderer_spinner_set_property (GObject *object,
244 GtkCellRendererSpinner *cell = GTK_CELL_RENDERER_SPINNER (object);
245 GtkCellRendererSpinnerPrivate *priv = cell->priv;
250 priv->active = g_value_get_boolean (value);
253 priv->pulse = g_value_get_uint (value);
256 priv->old_icon_size = priv->icon_size;
257 priv->icon_size = g_value_get_enum (value);
260 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
265 gtk_cell_renderer_spinner_get_size (GtkCellRenderer *cellr,
267 GdkRectangle *cell_area,
273 GtkCellRendererSpinner *cell = GTK_CELL_RENDERER_SPINNER (cellr);
274 GtkCellRendererSpinnerPrivate *priv = cell->priv;
278 gfloat xalign, yalign;
281 rtl = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL;
283 gtk_cell_renderer_spinner_update_size (cell, widget);
297 align = rtl ? 1.0 - xalign : xalign;
298 *x_offset = align * (cell_area->width - w);
299 *x_offset = MAX (*x_offset, 0);
303 align = rtl ? 1.0 - yalign : yalign;
304 *y_offset = align * (cell_area->height - h);
305 *y_offset = MAX (*y_offset, 0);
323 gtk_cell_renderer_spinner_render (GtkCellRenderer *cellr,
326 GdkRectangle *background_area,
327 GdkRectangle *cell_area,
328 GdkRectangle *expose_area,
331 GtkCellRendererSpinner *cell = GTK_CELL_RENDERER_SPINNER (cellr);
332 GtkCellRendererSpinnerPrivate *priv = cell->priv;
334 GdkRectangle pix_rect;
335 GdkRectangle draw_rect;
341 gtk_cell_renderer_spinner_get_size (cellr, widget, cell_area,
342 &pix_rect.x, &pix_rect.y,
343 &pix_rect.width, &pix_rect.height);
349 pix_rect.x += cell_area->x + xpad;
350 pix_rect.y += cell_area->y + ypad;
351 pix_rect.width -= xpad * 2;
352 pix_rect.height -= ypad * 2;
354 if (!gdk_rectangle_intersect (cell_area, &pix_rect, &draw_rect) ||
355 !gdk_rectangle_intersect (expose_area, &pix_rect, &draw_rect))
360 state = GTK_STATE_NORMAL;
361 if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE ||
362 !gtk_cell_renderer_get_sensitive (cellr))
364 state = GTK_STATE_INSENSITIVE;
368 if ((flags & GTK_CELL_RENDERER_SELECTED) != 0)
370 if (gtk_widget_has_focus (widget))
371 state = GTK_STATE_SELECTED;
373 state = GTK_STATE_ACTIVE;
376 state = GTK_STATE_PRELIGHT;
379 gtk_paint_spinner (gtk_widget_get_style (widget),
386 draw_rect.x, draw_rect.y,
387 draw_rect.width, draw_rect.height);