2 * This file is a part of hildon
4 * Copyright (C) 2008 Nokia Corporation, all rights reserved.
6 * Contact: Karl Lattimer <karl.lattimer@nokia.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser Public License as published by
10 * the Free Software Foundation; version 2 of the license.
12 * This program 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
15 * GNU Lesser Public License for more details.
20 * SECTION:hildon-button
21 * @short_description: Widget representing a button in the Hildon framework.
23 * The #HildonButton is a GTK widget which represents a clickable
24 * button. It is derived from the GtkButton widget and provides
25 * additional commodities specific to the Hildon framework.
27 * The height of a #HildonButton can be set to either "finger" height
28 * or "thumb" height. It can also be configured to use halfscreen or
29 * fullscreen width. Alternatively, either dimension can be set to
30 * "auto" so it behaves like a standard GtkButton.
32 * The #HildonButton can hold any valid child widget, but it usually
33 * contains two labels, named title and value. To change the alignment
34 * of the labels, use gtk_button_set_alignment()
37 #include "hildon-button.h"
38 #include "hildon-enum-types.h"
40 G_DEFINE_TYPE (HildonButton, hildon_button, GTK_TYPE_BUTTON);
42 #define HILDON_BUTTON_GET_PRIVATE(obj) \
43 (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \
44 HILDON_TYPE_BUTTON, HildonButtonPrivate));
46 typedef struct _HildonButtonPrivate HildonButtonPrivate;
48 struct _HildonButtonPrivate
56 GtkPositionType image_position;
67 hildon_button_set_arrangement (HildonButton *button,
68 HildonButtonArrangement arrangement);
71 hildon_button_construct_child (HildonButton *button);
74 hildon_button_set_property (GObject *object,
79 HildonButton *button = HILDON_BUTTON (object);
84 hildon_button_set_title (button, g_value_get_string (value));
87 hildon_button_set_value (button, g_value_get_string (value));
90 hildon_gtk_widget_set_theme_size (GTK_WIDGET (button), g_value_get_flags (value));
92 case PROP_ARRANGEMENT:
93 hildon_button_set_arrangement (button, g_value_get_enum (value));
96 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
102 hildon_button_get_property (GObject *object,
107 HildonButton *button = HILDON_BUTTON (object);
108 HildonButtonPrivate *priv = HILDON_BUTTON_GET_PRIVATE (button);
113 g_value_set_string (value, gtk_label_get_text (priv->title));
116 g_value_set_string (value, gtk_label_get_text (priv->value));
119 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
125 hildon_button_class_init (HildonButtonClass *klass)
127 GObjectClass *gobject_class = (GObjectClass *)klass;
128 GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
130 gobject_class->set_property = hildon_button_set_property;
131 gobject_class->get_property = hildon_button_get_property;
133 g_object_class_install_property (
136 g_param_spec_string (
139 "Text of the title label inside the button",
141 G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
143 g_object_class_install_property (
146 g_param_spec_string (
149 "Text of the value label inside the button",
151 G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
153 g_object_class_install_property (
159 "Size request for the button",
160 HILDON_TYPE_SIZE_TYPE,
162 G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
164 g_object_class_install_property (
170 "How the button contents must be arranged",
171 HILDON_TYPE_BUTTON_ARRANGEMENT,
172 HILDON_BUTTON_ARRANGEMENT_HORIZONTAL,
173 G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
175 gtk_widget_class_install_style_property (
178 "horizontal-spacing",
179 "Horizontal spacing between labels",
180 "Horizontal spacing between the title and value labels, when in horizontal mode",
184 gtk_widget_class_install_style_property (
188 "Vertical spacing between labels",
189 "Vertical spacing between the title and value labels, when in vertical mode",
193 g_type_class_add_private (klass, sizeof (HildonButtonPrivate));
197 hildon_button_init (HildonButton *self)
199 HildonButtonPrivate *priv = HILDON_BUTTON_GET_PRIVATE (self);
201 priv->title = GTK_LABEL (gtk_label_new (NULL));
202 priv->value = GTK_LABEL (gtk_label_new (NULL));
203 priv->alignment = gtk_alignment_new (0.5, 0.5, 0, 0);
205 priv->image_position = GTK_POS_LEFT;
207 priv->label_box = NULL;
209 gtk_widget_set_name (GTK_WIDGET (priv->title), "hildon-button-title");
210 gtk_widget_set_name (GTK_WIDGET (priv->value), "hildon-button-value");
212 gtk_misc_set_alignment (GTK_MISC (priv->title), 0, 0.5);
213 gtk_misc_set_alignment (GTK_MISC (priv->value), 0, 0.5);
215 /* The labels are not shown automatically, see hildon_button_set_(title|value) */
216 gtk_widget_set_no_show_all (GTK_WIDGET (priv->title), TRUE);
217 gtk_widget_set_no_show_all (GTK_WIDGET (priv->value), TRUE);
221 * hildon_button_set_size_groups:
222 * @button: a #HildonButton
223 * @title_size_group: A #GtkSizeGroup for the button title (main label), or %NULL
224 * @value_size_group: A #GtkSizeGroup group for the button value (secondary label), or %NULL
226 * Adds the title and value labels of @button to @title_size_group and
227 * @value_size_group respectively. %NULL size groups will be ignored.
230 hildon_button_set_size_groups (HildonButton *button,
231 GtkSizeGroup *title_size_group,
232 GtkSizeGroup *value_size_group)
234 HildonButtonPrivate *priv;
236 g_return_if_fail (HILDON_IS_BUTTON (button));
237 g_return_if_fail (!title_size_group || GTK_IS_SIZE_GROUP (title_size_group));
238 g_return_if_fail (!value_size_group || GTK_IS_SIZE_GROUP (value_size_group));
240 priv = HILDON_BUTTON_GET_PRIVATE (button);
242 if (title_size_group)
243 gtk_size_group_add_widget (title_size_group, GTK_WIDGET (priv->title));
245 if (value_size_group)
246 gtk_size_group_add_widget (value_size_group, GTK_WIDGET (priv->value));
251 * @size: Flags to set the size of the button.
252 * @arrangement: How the labels must be arranged.
254 * Creates a new #HildonButton. To add a child widget use gtk_container_add().
256 * Returns: a new #HildonButton
259 hildon_button_new (HildonSizeType size,
260 HildonButtonArrangement arrangement)
262 return hildon_button_new_full (size, arrangement, NULL, NULL, NULL, NULL);
266 * hildon_button_new_with_text:
267 * @size: Flags to set the size of the button.
268 * @arrangement: How the labels must be arranged.
269 * @title: Title of the button (main label), or %NULL
270 * @value: Value of the button (secondary label), or %NULL
272 * Creates a new #HildonButton with two labels, @title and @value.
274 * If you just don't want to use one of the labels, set it to
275 * %NULL. You can set it to a non-%NULL value at any time later.
277 * Returns: a new #HildonButton
280 hildon_button_new_with_text (HildonSizeType size,
281 HildonButtonArrangement arrangement,
285 return hildon_button_new_full (size, arrangement, title, value, NULL, NULL);
289 * hildon_button_new_full:
290 * @size: Flags to set the size of the button.
291 * @arrangement: How the labels must be arranged.
292 * @title: Title of the button (main label)
293 * @value: Value of the button (secondary label), or %NULL
294 * @title_size_group: a #GtkSizeGroup for the @title label, or %NULL
295 * @value_size_group: a #GtkSizeGroup for the @value label, or %NULL
297 * Creates a new #HildonButton with two labels, @title and @value, and
298 * their respective size groups.
300 * If you just don't want to use one of the labels, set it to
301 * %NULL. You can set it to a non-%NULL value at any time later.
303 * @title and @value will be added to @title_size_group and
304 * @value_size_group, respectively, if present.
306 * Returns: a new #HildonButton
309 hildon_button_new_full (HildonSizeType size,
310 HildonButtonArrangement arrangement,
313 GtkSizeGroup *title_size_group,
314 GtkSizeGroup *value_size_group)
319 button = g_object_new (HILDON_TYPE_BUTTON,
321 "arrangement", arrangement,
324 "name", "hildon-button",
326 /* Set size groups */
327 if (title_size_group || value_size_group)
328 hildon_button_set_size_groups (HILDON_BUTTON (button), title_size_group, value_size_group);
334 hildon_button_set_arrangement (HildonButton *button,
335 HildonButtonArrangement arrangement)
337 HildonButtonPrivate *priv;
338 guint horizontal_spacing;
339 guint vertical_spacing;
341 priv = HILDON_BUTTON_GET_PRIVATE (button);
343 /* Pack everything */
344 gtk_widget_style_get (GTK_WIDGET (button),
345 "horizontal-spacing", &horizontal_spacing,
346 "vertical-spacing", &vertical_spacing,
349 if (arrangement == HILDON_BUTTON_ARRANGEMENT_VERTICAL) {
350 priv->label_box = gtk_vbox_new (FALSE, vertical_spacing);
352 priv->label_box = gtk_hbox_new (FALSE, horizontal_spacing);
355 gtk_box_pack_start (GTK_BOX (priv->label_box), GTK_WIDGET (priv->title), FALSE, FALSE, 0);
356 gtk_box_pack_start (GTK_BOX (priv->label_box), GTK_WIDGET (priv->value), FALSE, FALSE, 0);
358 hildon_button_construct_child (button);
362 * hildon_button_set_title:
363 * @button: a #HildonButton
364 * @title: a new title (main label) for the button, or %NULL
366 * Sets the title (main label) of @button to @title.
368 * This will clear the previously set title.
370 * If @title is set to %NULL, the title label will be hidden and the
371 * value label will be realigned.
374 hildon_button_set_title (HildonButton *button,
377 HildonButtonPrivate *priv;
379 g_return_if_fail (HILDON_IS_BUTTON (button));
381 priv = HILDON_BUTTON_GET_PRIVATE (button);
382 gtk_label_set_text (priv->title, title);
384 /* If the button has no title, hide the label so the value is
385 * properly aligned */
387 hildon_button_construct_child (button);
388 gtk_widget_show (GTK_WIDGET (priv->title));
390 gtk_widget_hide (GTK_WIDGET (priv->title));
393 g_object_notify (G_OBJECT (button), "title");
397 * hildon_button_set_value:
398 * @button: a #HildonButton
399 * @value: a new value (secondary label) for the button, or %NULL
401 * Sets the value (secondary label) of @button to @value.
403 * This will clear the previously set value.
405 * If @value is set to %NULL, the value label will be hidden and the
406 * title label will be realigned.
410 hildon_button_set_value (HildonButton *button,
413 HildonButtonPrivate *priv;
415 g_return_if_fail (HILDON_IS_BUTTON (button));
417 priv = HILDON_BUTTON_GET_PRIVATE (button);
418 gtk_label_set_text (priv->value, value);
420 /* If the button has no value, hide the label so the title is
421 * properly aligned */
423 hildon_button_construct_child (button);
424 gtk_widget_show (GTK_WIDGET (priv->value));
426 gtk_widget_hide (GTK_WIDGET (priv->value));
429 g_object_notify (G_OBJECT (button), "value");
433 * hildon_button_get_title:
434 * @button: a #HildonButton
436 * Gets the text from the main label (title) of @button, or %NULL if
439 * Returns: The text of the title label. This string is owned by the
440 * widget and must not be modified or freed.
443 hildon_button_get_title (HildonButton *button)
445 HildonButtonPrivate *priv;
447 g_return_val_if_fail (HILDON_IS_BUTTON (button), NULL);
449 priv = HILDON_BUTTON_GET_PRIVATE (button);
451 return gtk_label_get_text (priv->title);
455 * hildon_button_get_value:
456 * @button: a #HildonButton
458 * Gets the text from the secondary label (value) of @button, or %NULL
459 * if none has been set.
461 * Returns: The text of the value label. This string is owned by the
462 * widget and must not be modified or freed.
465 hildon_button_get_value (HildonButton *button)
467 HildonButtonPrivate *priv;
469 g_return_val_if_fail (HILDON_IS_BUTTON (button), NULL);
471 priv = HILDON_BUTTON_GET_PRIVATE (button);
473 return gtk_label_get_text (priv->value);
477 * hildon_button_set_text:
478 * @button: a #HildonButton
479 * @title: new text for the button title (main label)
480 * @value: new text for the button value (secondary label)
482 * Convenience function to change both labels of a #HildonButton
485 hildon_button_set_text (HildonButton *button,
489 hildon_button_set_title (button, title);
490 hildon_button_set_value (button, value);
494 * hildon_button_set_image:
495 * @button: a #HildonButton
496 * @image: a widget to set as the button image
498 * Sets the image of @button to the given widget. The previous image
499 * (if any) will be removed.
502 hildon_button_set_image (HildonButton *button,
505 HildonButtonPrivate *priv;
507 g_return_if_fail (HILDON_IS_BUTTON (button));
508 g_return_if_fail (!image || GTK_IS_WIDGET (image));
510 priv = HILDON_BUTTON_GET_PRIVATE (button);
512 /* Return if there's nothing to do */
513 if (image == priv->image)
516 if (priv->image && priv->image->parent)
517 gtk_container_remove (GTK_CONTAINER (priv->image->parent), priv->image);
521 hildon_button_construct_child (button);
525 * hildon_button_set_image_position:
526 * @button: a #HildonButton
527 * @position: the position of the image (%GTK_POS_LEFT or %GTK_POS_RIGHT)
529 * Sets the position of the image inside @button. Only left and right
533 hildon_button_set_image_position (HildonButton *button,
534 GtkPositionType position)
536 HildonButtonPrivate *priv;
538 g_return_if_fail (HILDON_IS_BUTTON (button));
539 g_return_if_fail (position == GTK_POS_LEFT || position == GTK_POS_RIGHT);
541 priv = HILDON_BUTTON_GET_PRIVATE (button);
543 /* Return if there's nothing to do */
544 if (priv->image_position == position)
547 priv->image_position = position;
549 hildon_button_construct_child (button);
553 hildon_button_construct_child (HildonButton *button)
555 HildonButtonPrivate *priv = HILDON_BUTTON_GET_PRIVATE (button);
558 /* Don't do anything if the button is not constructed yet */
559 if (priv->label_box == NULL)
562 /* Save a ref to the image if necessary */
563 if (priv->image && priv->image->parent != NULL) {
564 g_object_ref (priv->image);
565 gtk_container_remove (GTK_CONTAINER (priv->image->parent), priv->image);
568 /* Save a ref to the label box if necessary */
569 if (priv->label_box->parent != NULL) {
570 g_object_ref (priv->label_box);
571 gtk_container_remove (GTK_CONTAINER (priv->label_box->parent), priv->label_box);
574 /* Remove the child from the container and add priv->alignment */
575 child = gtk_bin_get_child (GTK_BIN (button));
576 if (child != NULL && child != priv->alignment) {
577 gtk_container_remove (GTK_CONTAINER (button), child);
582 gtk_container_add (GTK_CONTAINER (button), GTK_WIDGET (priv->alignment));
585 /* Create a new hbox */
587 gtk_container_remove (GTK_CONTAINER (priv->alignment), GTK_WIDGET (priv->hbox));
589 priv->hbox = GTK_BOX (gtk_hbox_new (FALSE, 10));
590 gtk_container_add (GTK_CONTAINER (priv->alignment), GTK_WIDGET (priv->hbox));
592 /* Pack the image and the alignment in the new hbox */
593 if (priv->image && priv->image_position == GTK_POS_LEFT)
594 gtk_box_pack_start (priv->hbox, priv->image, FALSE, FALSE, 0);
596 gtk_box_pack_start (priv->hbox, priv->label_box, TRUE, TRUE, 0);
598 if (priv->image && priv->image_position == GTK_POS_RIGHT)
599 gtk_box_pack_start (priv->hbox, priv->image, FALSE, FALSE, 0);
601 /* Show everything */
602 gtk_widget_show_all (GTK_WIDGET (priv->alignment));