1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 #include "gtkcheckbutton.h"
31 #include "gtkbuttonprivate.h"
34 #include "gtkprivate.h"
39 * SECTION:gtkcheckbutton
40 * @Short_description: Create widgets with a discrete toggle button
41 * @Title: GtkCheckButton
42 * @See_also: #GtkCheckMenuItem, #GtkButton, #GtkToggleButton, #GtkRadioButton
44 * A #GtkCheckButton places a discrete #GtkToggleButton next to a widget,
45 * (usually a #GtkLabel). See the section on #GtkToggleButton widgets for
46 * more information about toggle/check buttons.
48 * The important signal ( #GtkToggleButton::toggled ) is also inherited from
53 #define INDICATOR_SIZE 16
54 #define INDICATOR_SPACING 2
57 static void gtk_check_button_get_preferred_width (GtkWidget *widget,
60 static void gtk_check_button_get_preferred_height (GtkWidget *widget,
63 static void gtk_check_button_size_allocate (GtkWidget *widget,
64 GtkAllocation *allocation);
65 static gboolean gtk_check_button_draw (GtkWidget *widget,
67 static void gtk_check_button_paint (GtkWidget *widget,
69 static void gtk_check_button_draw_indicator (GtkCheckButton *check_button,
71 static void gtk_real_check_button_draw_indicator (GtkCheckButton *check_button,
74 G_DEFINE_TYPE (GtkCheckButton, gtk_check_button, GTK_TYPE_TOGGLE_BUTTON)
77 gtk_check_button_class_init (GtkCheckButtonClass *class)
79 GtkWidgetClass *widget_class;
81 widget_class = (GtkWidgetClass*) class;
83 widget_class->get_preferred_width = gtk_check_button_get_preferred_width;
84 widget_class->get_preferred_height = gtk_check_button_get_preferred_height;
85 widget_class->size_allocate = gtk_check_button_size_allocate;
86 widget_class->draw = gtk_check_button_draw;
88 class->draw_indicator = gtk_real_check_button_draw_indicator;
90 gtk_widget_class_set_accessible_role (widget_class, ATK_ROLE_CHECK_BOX);
92 gtk_widget_class_install_style_property (widget_class,
93 g_param_spec_int ("indicator-size",
95 P_("Size of check or radio indicator"),
100 gtk_widget_class_install_style_property (widget_class,
101 g_param_spec_int ("indicator-spacing",
102 P_("Indicator Spacing"),
103 P_("Spacing around check or radio indicator"),
107 GTK_PARAM_READABLE));
111 gtk_check_button_init (GtkCheckButton *check_button)
113 gtk_widget_set_has_window (GTK_WIDGET (check_button), FALSE);
114 gtk_widget_set_receives_default (GTK_WIDGET (check_button), FALSE);
115 gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (check_button), TRUE);
116 gtk_button_set_alignment (GTK_BUTTON (check_button), 0.0, 0.5);
120 * gtk_check_button_new:
122 * Creates a new #GtkCheckButton.
124 * Returns: a #GtkWidget.
127 gtk_check_button_new (void)
129 return g_object_new (GTK_TYPE_CHECK_BUTTON, NULL);
134 * gtk_check_button_new_with_label:
135 * @label: the text for the check button.
137 * Creates a new #GtkCheckButton with a #GtkLabel to the right of it.
139 * Returns: a #GtkWidget.
142 gtk_check_button_new_with_label (const gchar *label)
144 return g_object_new (GTK_TYPE_CHECK_BUTTON, "label", label, NULL);
148 * gtk_check_button_new_with_mnemonic:
149 * @label: The text of the button, with an underscore in front of the
151 * @returns: a new #GtkCheckButton
153 * Creates a new #GtkCheckButton containing a label. The label
154 * will be created using gtk_label_new_with_mnemonic(), so underscores
155 * in @label indicate the mnemonic for the check button.
158 gtk_check_button_new_with_mnemonic (const gchar *label)
160 return g_object_new (GTK_TYPE_CHECK_BUTTON,
162 "use-underline", TRUE,
167 /* This should only be called when toggle_button->draw_indicator
171 gtk_check_button_paint (GtkWidget *widget,
174 GtkCheckButton *check_button = GTK_CHECK_BUTTON (widget);
180 gtk_widget_style_get (widget,
181 "interior-focus", &interior_focus,
182 "focus-line-width", &focus_width,
183 "focus-padding", &focus_pad,
186 gtk_check_button_draw_indicator (check_button, cr);
188 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
189 if (gtk_widget_has_focus (widget))
191 GtkWidget *child = gtk_bin_get_child (GTK_BIN (widget));
192 GtkStyleContext *context;
194 GtkAllocation allocation;
196 gtk_widget_get_allocation (widget, &allocation);
197 context = gtk_widget_get_style_context (widget);
198 state = gtk_widget_get_state_flags (widget);
200 gtk_style_context_set_state (context, state);
202 if (interior_focus && child && gtk_widget_get_visible (child))
204 GtkAllocation child_allocation;
206 gtk_widget_get_allocation (child, &child_allocation);
207 gtk_render_focus (context, cr,
208 child_allocation.x - allocation.x - focus_width - focus_pad,
209 child_allocation.y - allocation.y - focus_width - focus_pad,
210 child_allocation.width + 2 * (focus_width + focus_pad),
211 child_allocation.height + 2 * (focus_width + focus_pad));
214 gtk_render_focus (context, cr,
215 border_width, border_width,
216 allocation.width - 2 * border_width,
217 allocation.height - 2 * border_width);
222 _gtk_check_button_get_props (GtkCheckButton *check_button,
223 gint *indicator_size,
224 gint *indicator_spacing)
226 GtkWidget *widget = GTK_WIDGET (check_button);
229 gtk_widget_style_get (widget, "indicator-size", indicator_size, NULL);
231 if (indicator_spacing)
232 gtk_widget_style_get (widget, "indicator-spacing", indicator_spacing, NULL);
236 gtk_check_button_get_preferred_width (GtkWidget *widget,
240 GtkToggleButton *toggle_button = GTK_TOGGLE_BUTTON (widget);
242 if (gtk_toggle_button_get_mode (toggle_button))
246 gint indicator_spacing;
251 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
253 gtk_widget_style_get (GTK_WIDGET (widget),
254 "focus-line-width", &focus_width,
255 "focus-padding", &focus_pad,
257 *minimum = 2 * border_width;
258 *natural = 2 * border_width;
260 _gtk_check_button_get_props (GTK_CHECK_BUTTON (widget),
261 &indicator_size, &indicator_spacing);
263 child = gtk_bin_get_child (GTK_BIN (widget));
264 if (child && gtk_widget_get_visible (child))
266 gint child_min, child_nat;
268 gtk_widget_get_preferred_width (child, &child_min, &child_nat);
270 *minimum += child_min + indicator_spacing;
271 *natural += child_nat + indicator_spacing;
274 *minimum += (indicator_size + indicator_spacing * 2 + 2 * (focus_width + focus_pad));
275 *natural += (indicator_size + indicator_spacing * 2 + 2 * (focus_width + focus_pad));
278 GTK_WIDGET_CLASS (gtk_check_button_parent_class)->get_preferred_width (widget, minimum, natural);
282 gtk_check_button_get_preferred_height (GtkWidget *widget,
286 GtkToggleButton *toggle_button = GTK_TOGGLE_BUTTON (widget);
288 if (gtk_toggle_button_get_mode (toggle_button))
293 gint indicator_spacing;
298 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
300 gtk_widget_style_get (GTK_WIDGET (widget),
301 "focus-line-width", &focus_width,
302 "focus-padding", &focus_pad,
305 *minimum = border_width * 2;
306 *natural = border_width * 2;
308 _gtk_check_button_get_props (GTK_CHECK_BUTTON (widget),
309 &indicator_size, &indicator_spacing);
311 child = gtk_bin_get_child (GTK_BIN (widget));
312 if (child && gtk_widget_get_visible (child))
314 gint child_min, child_nat;
316 gtk_widget_get_preferred_height (child, &child_min, &child_nat);
318 *minimum += child_min;
319 *natural += child_nat;
322 temp = indicator_size + indicator_spacing * 2;
323 *minimum = MAX (*minimum, temp) + 2 * (focus_width + focus_pad);
324 *natural = MAX (*natural, temp) + 2 * (focus_width + focus_pad);
327 GTK_WIDGET_CLASS (gtk_check_button_parent_class)->get_preferred_height (widget, minimum, natural);
331 gtk_check_button_size_allocate (GtkWidget *widget,
332 GtkAllocation *allocation)
334 GtkCheckButton *check_button;
335 GtkToggleButton *toggle_button;
337 GtkAllocation child_allocation;
339 button = GTK_BUTTON (widget);
340 check_button = GTK_CHECK_BUTTON (widget);
341 toggle_button = GTK_TOGGLE_BUTTON (widget);
343 if (gtk_toggle_button_get_mode (toggle_button))
347 gint indicator_spacing;
351 _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
352 gtk_widget_style_get (widget,
353 "focus-line-width", &focus_width,
354 "focus-padding", &focus_pad,
357 gtk_widget_set_allocation (widget, allocation);
359 if (gtk_widget_get_realized (widget))
360 gdk_window_move_resize (gtk_button_get_event_window (button),
361 allocation->x, allocation->y,
362 allocation->width, allocation->height);
364 child = gtk_bin_get_child (GTK_BIN (button));
365 if (child && gtk_widget_get_visible (child))
367 guint border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
369 child_allocation.width = allocation->width -
370 ((border_width + focus_width + focus_pad) * 2 + indicator_size + indicator_spacing * 3);
371 child_allocation.width = MAX (child_allocation.width, 1);
373 child_allocation.height = allocation->height - (border_width + focus_width + focus_pad) * 2;
374 child_allocation.height = MAX (child_allocation.height, 1);
376 child_allocation.x = (border_width + indicator_size + indicator_spacing * 3 +
377 allocation->x + focus_width + focus_pad);
378 child_allocation.y = allocation->y + (allocation->height - child_allocation.height) / 2;
380 if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
381 child_allocation.x = allocation->x + allocation->width
382 - (child_allocation.x - allocation->x + child_allocation.width);
384 gtk_widget_size_allocate (child, &child_allocation);
388 GTK_WIDGET_CLASS (gtk_check_button_parent_class)->size_allocate (widget, allocation);
392 gtk_check_button_draw (GtkWidget *widget,
395 GtkToggleButton *toggle_button;
399 toggle_button = GTK_TOGGLE_BUTTON (widget);
400 bin = GTK_BIN (widget);
402 if (gtk_toggle_button_get_mode (toggle_button))
404 gtk_check_button_paint (widget, cr);
406 child = gtk_bin_get_child (bin);
408 gtk_container_propagate_draw (GTK_CONTAINER (widget),
412 else if (GTK_WIDGET_CLASS (gtk_check_button_parent_class)->draw)
413 GTK_WIDGET_CLASS (gtk_check_button_parent_class)->draw (widget, cr);
420 gtk_check_button_draw_indicator (GtkCheckButton *check_button,
423 GtkCheckButtonClass *class = GTK_CHECK_BUTTON_GET_CLASS (check_button);
425 if (class->draw_indicator)
426 class->draw_indicator (check_button, cr);
430 gtk_real_check_button_draw_indicator (GtkCheckButton *check_button,
436 GtkToggleButton *toggle_button;
437 GtkStateFlags state = 0;
440 gint indicator_spacing;
444 gboolean interior_focus;
445 GtkAllocation allocation;
446 GtkStyleContext *context;
448 widget = GTK_WIDGET (check_button);
449 button = GTK_BUTTON (check_button);
450 toggle_button = GTK_TOGGLE_BUTTON (check_button);
452 gtk_widget_get_allocation (widget, &allocation);
453 context = gtk_widget_get_style_context (widget);
455 gtk_widget_style_get (widget,
456 "interior-focus", &interior_focus,
457 "focus-line-width", &focus_width,
458 "focus-padding", &focus_pad,
461 _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
463 border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
465 x = indicator_spacing + border_width;
466 y = (allocation.height - indicator_size) / 2;
468 child = gtk_bin_get_child (GTK_BIN (check_button));
469 if (!interior_focus || !(child && gtk_widget_get_visible (child)))
470 x += focus_width + focus_pad;
472 if (gtk_toggle_button_get_inconsistent (toggle_button))
473 state |= GTK_STATE_FLAG_INCONSISTENT;
474 else if (gtk_toggle_button_get_active (toggle_button) ||
475 (button->priv->button_down && button->priv->in_button))
476 state |= GTK_STATE_FLAG_ACTIVE;
478 if (button->priv->activate_timeout || (button->priv->button_down && button->priv->in_button))
479 state |= GTK_STATE_FLAG_SELECTED;
481 if (button->priv->in_button)
482 state |= GTK_STATE_FLAG_PRELIGHT;
483 else if (!gtk_widget_is_sensitive (widget))
484 state |= GTK_STATE_FLAG_INSENSITIVE;
486 if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
487 x = allocation.width - (indicator_size + x);
489 gtk_style_context_set_state (context, state);
491 if (state & GTK_STATE_FLAG_PRELIGHT)
492 gtk_render_background (context, cr,
493 border_width, border_width,
494 allocation.width - (2 * border_width),
495 allocation.height - (2 * border_width));
497 gtk_style_context_save (context);
498 gtk_style_context_add_class (context, GTK_STYLE_CLASS_CHECK);
500 gtk_render_check (context, cr,
501 x, y, indicator_size, indicator_size);
503 gtk_style_context_restore (context);