1 /* Copyright (c) 2007, Nokia Corporation
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * * Neither the name of the Nokia Corporation nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
18 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <glib/gi18n-lib.h>
36 #include <modest-text-utils.h>
37 #include <modest-vbox-cell-renderer.h>
39 #define RENDERER_EXPAND_ATTRIBUTE "box-expand"
41 static GObjectClass *parent_class = NULL;
48 typedef struct _ModestVBoxCellRendererPrivate ModestVBoxCellRendererPrivate;
50 struct _ModestVBoxCellRendererPrivate
52 GList *renderers_list;
55 #define MODEST_VBOX_CELL_RENDERER_GET_PRIVATE(o) \
56 (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_VBOX_CELL_RENDERER, ModestVBoxCellRendererPrivate))
58 /* static guint signals[LAST_SIGNAL] = {0}; */
60 /* static functions: GObject */
61 static void modest_vbox_cell_renderer_instance_init (GTypeInstance *instance, gpointer g_class);
62 static void modest_vbox_cell_renderer_finalize (GObject *object);
63 static void modest_vbox_cell_renderer_class_init (ModestVBoxCellRendererClass *klass);
65 /* static functions: GtkCellRenderer */
66 static void modest_vbox_cell_renderer_get_size (GtkCellRenderer *cell,
68 GdkRectangle *rectangle,
73 static void modest_vbox_cell_renderer_render (GtkCellRenderer *cell,
76 GdkRectangle *background_area,
77 GdkRectangle *cell_area,
78 GdkRectangle *expose_area,
79 GtkCellRendererState flags);
83 * modest_vbox_cell_renderer_new:
85 * Return value: a new #ModestVBoxCellRenderer instance implemented for Gtk+
88 modest_vbox_cell_renderer_new (void)
90 ModestVBoxCellRenderer *self = g_object_new (MODEST_TYPE_VBOX_CELL_RENDERER, NULL);
92 return GTK_CELL_RENDERER (self);
96 modest_vbox_cell_renderer_instance_init (GTypeInstance *instance, gpointer g_class)
98 ModestVBoxCellRendererPrivate *priv = MODEST_VBOX_CELL_RENDERER_GET_PRIVATE (instance);
100 priv->renderers_list = NULL;
106 modest_vbox_cell_renderer_finalize (GObject *object)
108 ModestVBoxCellRendererPrivate *priv = MODEST_VBOX_CELL_RENDERER_GET_PRIVATE (object);
110 if (priv->renderers_list != NULL) {
111 g_list_foreach (priv->renderers_list, (GFunc) g_object_unref, NULL);
112 g_list_free (priv->renderers_list);
113 priv->renderers_list = NULL;
116 (*parent_class->finalize) (object);
122 modest_vbox_cell_renderer_class_init (ModestVBoxCellRendererClass *klass)
124 GObjectClass *object_class;
125 GtkCellRendererClass *renderer_class;
127 parent_class = g_type_class_peek_parent (klass);
128 object_class = (GObjectClass*) klass;
129 renderer_class = (GtkCellRendererClass*) klass;
131 object_class->finalize = modest_vbox_cell_renderer_finalize;
132 renderer_class->get_size = modest_vbox_cell_renderer_get_size;
133 renderer_class->render = modest_vbox_cell_renderer_render;
135 g_type_class_add_private (object_class, sizeof (ModestVBoxCellRendererPrivate));
141 modest_vbox_cell_renderer_get_type (void)
143 static GType type = 0;
145 if (G_UNLIKELY(type == 0))
147 static const GTypeInfo info =
149 sizeof (ModestVBoxCellRendererClass),
150 NULL, /* base_init */
151 NULL, /* base_finalize */
152 (GClassInitFunc) modest_vbox_cell_renderer_class_init, /* class_init */
153 NULL, /* class_finalize */
154 NULL, /* class_data */
155 sizeof (ModestVBoxCellRenderer),
157 modest_vbox_cell_renderer_instance_init /* instance_init */
160 type = g_type_register_static (GTK_TYPE_CELL_RENDERER,
161 "ModestVBoxCellRenderer",
171 * modest_vbox_cell_renderer_append:
172 * @vbox_renderer: a #ModestVBoxCellRenderer
173 * @cell: a #GtkCellRenderer
175 * Appends @cell to the end of the list of renderers shown in @vbox_renderer
178 modest_vbox_cell_renderer_append (ModestVBoxCellRenderer *vbox_renderer,
179 GtkCellRenderer *cell,
182 ModestVBoxCellRendererPrivate *priv = MODEST_VBOX_CELL_RENDERER_GET_PRIVATE (vbox_renderer);
184 priv->renderers_list = g_list_append (priv->renderers_list, cell);
185 g_object_set_data (G_OBJECT (cell), RENDERER_EXPAND_ATTRIBUTE, GINT_TO_POINTER (expand));
187 #if GLIB_CHECK_VERSION(2, 10, 0) /* g_object_ref_sink() was added in glib 2.10: */
188 g_object_ref_sink (G_OBJECT (cell));
190 g_object_ref (G_OBJECT (cell));
191 gtk_object_sink (GTK_OBJECT (cell));
196 modest_vbox_cell_renderer_get_size (GtkCellRenderer *cell,
198 GdkRectangle *rectangle,
204 gint calc_width, calc_height;
205 gint full_width, full_height;
207 gfloat xalign, yalign;
209 ModestVBoxCellRendererPrivate *priv = MODEST_VBOX_CELL_RENDERER_GET_PRIVATE (cell);
214 for (node = priv->renderers_list; node != NULL; node = g_list_next (node)) {
215 gint renderer_width, renderer_height;
216 GtkCellRenderer *renderer = (GtkCellRenderer *) node->data;
218 gtk_cell_renderer_get_size (renderer, widget, NULL, NULL, NULL,
219 &renderer_width, &renderer_height);
220 if ((renderer_width > 0)&&(renderer_height > 0)) {
221 calc_width = MAX (calc_width, renderer_width);
222 calc_height += renderer_height;
233 full_width = (gint) xpad * 2 + calc_width;
234 full_height = (gint) ypad * 2 + calc_height;
236 if (rectangle && calc_width > 0 && calc_height > 0) {
238 *x_offset = (((gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) ?
239 (1.0 - xalign) : xalign) *
240 (rectangle->width - full_width));
241 *x_offset = MAX (*x_offset, 0);
244 *y_offset = ((yalign) *
245 (rectangle->height - full_height));
246 *y_offset = MAX (*y_offset, 0);
258 *height = full_height;
262 modest_vbox_cell_renderer_render (GtkCellRenderer *cell,
265 GdkRectangle *background_area,
266 GdkRectangle *cell_area,
267 GdkRectangle *expose_area,
268 GtkCellRendererState flags)
270 ModestVBoxCellRendererPrivate *priv = MODEST_VBOX_CELL_RENDERER_GET_PRIVATE (cell);
271 gint nvis_children = 0;
272 gint nexpand_children = 0;
273 GtkTextDirection direction;
275 GtkCellRenderer *child;
278 direction = gtk_widget_get_direction (widget);
280 nexpand_children = 0;
283 /* Counts visible and expandable children cell renderers */
284 for (node = priv->renderers_list; node != NULL; node = g_list_next (node)) {
285 gboolean visible, expand;
286 child = (GtkCellRenderer *) node->data;
287 g_object_get (G_OBJECT (child), "visible", &visible, NULL);
288 expand = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (child), RENDERER_EXPAND_ATTRIBUTE));
293 nexpand_children += 1;
297 if (nvis_children > 0) {
300 GdkRectangle child_alloc;
302 if (nexpand_children > 0) {
305 modest_vbox_cell_renderer_get_size (cell, widget, NULL, NULL, NULL, &(req.width), &(req.height));
306 height = cell_area->height - req.height;
307 extra = height / nexpand_children;
313 g_object_get (cell, "xpad", &x_pad, "ypad", &y_pad, NULL);
314 y = cell_area->y + y_pad;
315 child_alloc.x = cell_area->x + x_pad;
316 child_alloc.width = MAX (1, cell_area->width - x_pad * 2);
318 for (node = priv->renderers_list; node != NULL; node = g_list_next (node)) {
319 gboolean visible, expand;
321 child = (GtkCellRenderer *) node->data;
322 g_object_get (G_OBJECT (child), "visible", &visible, NULL);
323 expand = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (child), RENDERER_EXPAND_ATTRIBUTE));
326 GtkRequisition child_req;
327 gint child_xpad, child_ypad;
328 GdkRectangle child_expose_area;
330 gtk_cell_renderer_get_size (child, widget, NULL, NULL, NULL, &(child_req.width), &(child_req.height));
331 g_object_get (child, "xpad", &child_xpad, "ypad", &child_ypad, NULL);
334 if (nexpand_children == 1)
335 child_req.height += height;
337 child_req.height += extra;
338 nexpand_children -= 1;
342 child_alloc.height = MAX (1, child_req.height);
345 if (gdk_rectangle_intersect (&child_alloc, expose_area, &child_expose_area))
346 gtk_cell_renderer_render (child, window, widget, background_area, &child_alloc, &child_expose_area, flags);
347 y += child_req.height;