Pileus Git - ~andy/gtk/blob - gtk/gtkcheckbutton.c

   1 /* GTK - The GIMP Toolkit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  *
   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.
   8  *
   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.
  13  *
  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.
  18  */
  19
  20 /*
  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/.
  25  */
  26
  27 #include <config.h>
  28 #include "gtkcheckbutton.h"
  29 #include "gtklabel.h"
  30 #include "gtkprivate.h"
  31 #include "gtkintl.h"
  32 #include "gtkalias.h"
  33
  34
  35 #define INDICATOR_SIZE     13
  36 #define INDICATOR_SPACING  2
  37
  38
  39 static void gtk_check_button_size_request        (GtkWidget           *widget,
  40                                                   GtkRequisition      *requisition);
  41 static void gtk_check_button_size_allocate       (GtkWidget           *widget,
  42                                                   GtkAllocation       *allocation);
  43 static gint gtk_check_button_expose              (GtkWidget           *widget,
  44                                                   GdkEventExpose      *event);
  45 static void gtk_check_button_paint               (GtkWidget           *widget,
  46                                                   GdkRectangle        *area);
  47 static void gtk_check_button_draw_indicator      (GtkCheckButton      *check_button,
  48                                                   GdkRectangle        *area);
  49 static void gtk_real_check_button_draw_indicator (GtkCheckButton      *check_button,
  50                                                   GdkRectangle        *area);
  51
  52 G_DEFINE_TYPE (GtkCheckButton, gtk_check_button, GTK_TYPE_TOGGLE_BUTTON);
  53
  54 static void
  55 gtk_check_button_class_init (GtkCheckButtonClass *class)
  56 {
  57   GtkWidgetClass *widget_class;
  58
  59   widget_class = (GtkWidgetClass*) class;
  60
  61   widget_class->size_request = gtk_check_button_size_request;
  62   widget_class->size_allocate = gtk_check_button_size_allocate;
  63   widget_class->expose_event = gtk_check_button_expose;
  64
  65   class->draw_indicator = gtk_real_check_button_draw_indicator;
  66
  67   gtk_widget_class_install_style_property (widget_class,
  68                                            g_param_spec_int ("indicator-size",
  69                                                              P_("Indicator Size"),
  70                                                              P_("Size of check or radio indicator"),
  71                                                              0,
  72                                                              G_MAXINT,
  73                                                              INDICATOR_SIZE,
  74                                                              GTK_PARAM_READABLE));
  75   gtk_widget_class_install_style_property (widget_class,
  76                                            g_param_spec_int ("indicator-spacing",
  77                                                              P_("Indicator Spacing"),
  78                                                              P_("Spacing around check or radio indicator"),
  79                                                              0,
  80                                                              G_MAXINT,
  81                                                              INDICATOR_SPACING,
  82                                                              GTK_PARAM_READABLE));
  83 }
  84
  85 static void
  86 gtk_check_button_init (GtkCheckButton *check_button)
  87 {
  88   GTK_WIDGET_SET_FLAGS (check_button, GTK_NO_WINDOW);
  89   GTK_WIDGET_UNSET_FLAGS (check_button, GTK_RECEIVES_DEFAULT);
  90   GTK_TOGGLE_BUTTON (check_button)->draw_indicator = TRUE;
  91   GTK_BUTTON (check_button)->depress_on_activate = FALSE;
  92 }
  93
  94 GtkWidget*
  95 gtk_check_button_new (void)
  96 {
  97   return g_object_new (GTK_TYPE_CHECK_BUTTON, NULL);
  98 }
  99
 100
 101 GtkWidget*
 102 gtk_check_button_new_with_label (const gchar *label)
 103 {
 104   return g_object_new (GTK_TYPE_CHECK_BUTTON, "label", label, NULL);
 105 }
 106
 107 /**
 108  * gtk_check_button_new_with_mnemonic:
 109  * @label: The text of the button, with an underscore in front of the
 110  *         mnemonic character
 111  * @returns: a new #GtkCheckButton
 112  *
 113  * Creates a new #GtkCheckButton containing a label. The label
 114  * will be created using gtk_label_new_with_mnemonic(), so underscores
 115  * in @label indicate the mnemonic for the check button.
 116  **/
 117 GtkWidget*
 118 gtk_check_button_new_with_mnemonic (const gchar *label)
 119 {
 120   return g_object_new (GTK_TYPE_CHECK_BUTTON, "label", label, "use_underline", TRUE, NULL);
 121 }
 122
 123
 124 /* This should only be called when toggle_button->draw_indicator
 125  * is true.
 126  */
 127 static void
 128 gtk_check_button_paint (GtkWidget    *widget,
 129                         GdkRectangle *area)
 130 {
 131   GtkCheckButton *check_button = GTK_CHECK_BUTTON (widget);
 132
 133   if (GTK_WIDGET_DRAWABLE (widget))
 134     {
 135       gint border_width;
 136       gint interior_focus;
 137       gint focus_width;
 138       gint focus_pad;
 139
 140       gtk_widget_style_get (widget,
 141                             "interior-focus", &interior_focus,
 142                             "focus-line-width", &focus_width,
 143                             "focus-padding", &focus_pad,
 144                             NULL);
 145
 146       gtk_check_button_draw_indicator (check_button, area);
 147
 148       border_width = GTK_CONTAINER (widget)->border_width;
 149       if (GTK_WIDGET_HAS_FOCUS (widget))
 150         {
 151           GtkWidget *child = GTK_BIN (widget)->child;
 152
 153           if (interior_focus && child && GTK_WIDGET_VISIBLE (child))
 154             gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
 155                              NULL, widget, "checkbutton",
 156                              child->allocation.x - focus_width - focus_pad,
 157                              child->allocation.y - focus_width - focus_pad,
 158                              child->allocation.width + 2 * (focus_width + focus_pad),
 159                              child->allocation.height + 2 * (focus_width + focus_pad));
 160           else
 161             gtk_paint_focus (widget->style, widget->window, GTK_WIDGET_STATE (widget),
 162                              NULL, widget, "checkbutton",
 163                              border_width + widget->allocation.x,
 164                              border_width + widget->allocation.y,
 165                              widget->allocation.width - 2 * border_width,
 166                              widget->allocation.height - 2 * border_width);
 167         }
 168     }
 169 }
 170
 171 void
 172 _gtk_check_button_get_props (GtkCheckButton *check_button,
 173                              gint           *indicator_size,
 174                              gint           *indicator_spacing)
 175 {
 176   GtkWidget *widget =  GTK_WIDGET (check_button);
 177
 178   if (indicator_size)
 179     gtk_widget_style_get (widget, "indicator-size", indicator_size, NULL);
 180
 181   if (indicator_spacing)
 182     gtk_widget_style_get (widget, "indicator-spacing", indicator_spacing, NULL);
 183 }
 184
 185 static void
 186 gtk_check_button_size_request (GtkWidget      *widget,
 187                                GtkRequisition *requisition)
 188 {
 189   GtkToggleButton *toggle_button = GTK_TOGGLE_BUTTON (widget);
 190
 191   if (toggle_button->draw_indicator)
 192     {
 193       GtkWidget *child;
 194       gint temp;
 195       gint indicator_size;
 196       gint indicator_spacing;
 197       gint border_width = GTK_CONTAINER (widget)->border_width;
 198       gint focus_width;
 199       gint focus_pad;
 200
 201       gtk_widget_style_get (GTK_WIDGET (widget),
 202                             "focus-line-width", &focus_width,
 203                             "focus-padding", &focus_pad,
 204                             NULL);
 205
 206       requisition->width = border_width * 2;
 207       requisition->height = border_width * 2;
 208
 209       _gtk_check_button_get_props (GTK_CHECK_BUTTON (widget),
 210                                    &indicator_size, &indicator_spacing);
 211
 212       child = GTK_BIN (widget)->child;
 213       if (child && GTK_WIDGET_VISIBLE (child))
 214         {
 215           GtkRequisition child_requisition;
 216
 217           gtk_widget_size_request (child, &child_requisition);
 218
 219           requisition->width += child_requisition.width + indicator_spacing;
 220           requisition->height += child_requisition.height;
 221         }
 222
 223       requisition->width += (indicator_size + indicator_spacing * 2 + 2 * (focus_width + focus_pad));
 224
 225       temp = indicator_size + indicator_spacing * 2;
 226       requisition->height = MAX (requisition->height, temp) + 2 * (focus_width + focus_pad);
 227     }
 228   else
 229     (* GTK_WIDGET_CLASS (gtk_check_button_parent_class)->size_request) (widget, requisition);
 230 }
 231
 232 static void
 233 gtk_check_button_size_allocate (GtkWidget     *widget,
 234                                 GtkAllocation *allocation)
 235 {
 236   GtkCheckButton *check_button;
 237   GtkToggleButton *toggle_button;
 238   GtkButton *button;
 239   GtkAllocation child_allocation;
 240
 241   button = GTK_BUTTON (widget);
 242   check_button = GTK_CHECK_BUTTON (widget);
 243   toggle_button = GTK_TOGGLE_BUTTON (widget);
 244
 245   if (toggle_button->draw_indicator)
 246     {
 247       gint indicator_size;
 248       gint indicator_spacing;
 249       gint focus_width;
 250       gint focus_pad;
 251
 252       _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
 253       gtk_widget_style_get (widget,
 254                             "focus-line-width", &focus_width,
 255                             "focus-padding", &focus_pad,
 256                             NULL);
 257
 258       widget->allocation = *allocation;
 259       if (GTK_WIDGET_REALIZED (widget))
 260         gdk_window_move_resize (button->event_window,
 261                                 allocation->x, allocation->y,
 262                                 allocation->width, allocation->height);
 263
 264       if (GTK_BIN (button)->child && GTK_WIDGET_VISIBLE (GTK_BIN (button)->child))
 265         {
 266           GtkRequisition child_requisition;
 267           gint border_width = GTK_CONTAINER (widget)->border_width;
 268
 269           gtk_widget_get_child_requisition (GTK_BIN (button)->child, &child_requisition);
 270
 271           child_allocation.width = MIN (child_requisition.width,
 272                                         allocation->width -
 273                                         ((border_width + focus_width + focus_pad) * 2
 274                                          + indicator_size + indicator_spacing * 3));
 275           child_allocation.width = MAX (child_allocation.width, 1);
 276
 277           child_allocation.height = MIN (child_requisition.height,
 278                                          allocation->height - (border_width + focus_width + focus_pad) * 2);
 279           child_allocation.height = MAX (child_allocation.height, 1);
 280
 281           child_allocation.x = (border_width + indicator_size + indicator_spacing * 3 +
 282                                 widget->allocation.x + focus_width + focus_pad);
 283           child_allocation.y = widget->allocation.y +
 284                   (allocation->height - child_allocation.height) / 2;
 285
 286           if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 287             child_allocation.x = allocation->x + allocation->width
 288               - (child_allocation.x - allocation->x + child_allocation.width);
 289
 290           gtk_widget_size_allocate (GTK_BIN (button)->child, &child_allocation);
 291         }
 292     }
 293   else
 294     (* GTK_WIDGET_CLASS (gtk_check_button_parent_class)->size_allocate) (widget, allocation);
 295 }
 296
 297 static gint
 298 gtk_check_button_expose (GtkWidget      *widget,
 299                          GdkEventExpose *event)
 300 {
 301   GtkToggleButton *toggle_button;
 302   GtkBin *bin;
 303
 304   toggle_button = GTK_TOGGLE_BUTTON (widget);
 305   bin = GTK_BIN (widget);
 306
 307   if (GTK_WIDGET_DRAWABLE (widget))
 308     {
 309       if (toggle_button->draw_indicator)
 310         {
 311           gtk_check_button_paint (widget, &event->area);
 312
 313           if (bin->child)
 314             gtk_container_propagate_expose (GTK_CONTAINER (widget),
 315                                             bin->child,
 316                                             event);
 317         }
 318       else if (GTK_WIDGET_CLASS (gtk_check_button_parent_class)->expose_event)
 319         (* GTK_WIDGET_CLASS (gtk_check_button_parent_class)->expose_event) (widget, event);
 320     }
 321
 322   return FALSE;
 323 }
 324
 325
 326 static void
 327 gtk_check_button_draw_indicator (GtkCheckButton *check_button,
 328                                  GdkRectangle   *area)
 329 {
 330   GtkCheckButtonClass *class;
 331
 332   g_return_if_fail (GTK_IS_CHECK_BUTTON (check_button));
 333
 334   class = GTK_CHECK_BUTTON_GET_CLASS (check_button);
 335
 336   if (class->draw_indicator)
 337     (* class->draw_indicator) (check_button, area);
 338 }
 339
 340 static void
 341 gtk_real_check_button_draw_indicator (GtkCheckButton *check_button,
 342                                       GdkRectangle   *area)
 343 {
 344   GtkWidget *widget;
 345   GtkWidget *child;
 346   GtkButton *button;
 347   GtkToggleButton *toggle_button;
 348   GtkStateType state_type;
 349   GtkShadowType shadow_type;
 350   gint x, y;
 351   gint indicator_size;
 352   gint indicator_spacing;
 353   gint focus_width;
 354   gint focus_pad;
 355   gboolean interior_focus;
 356
 357   if (GTK_WIDGET_DRAWABLE (check_button))
 358     {
 359       widget = GTK_WIDGET (check_button);
 360       button = GTK_BUTTON (check_button);
 361       toggle_button = GTK_TOGGLE_BUTTON (check_button);
 362
 363       gtk_widget_style_get (widget,
 364                             "interior-focus", &interior_focus,
 365                             "focus-line-width", &focus_width,
 366                             "focus-padding", &focus_pad,
 367                             NULL);
 368
 369       _gtk_check_button_get_props (check_button, &indicator_size, &indicator_spacing);
 370
 371       x = widget->allocation.x + indicator_spacing + GTK_CONTAINER (widget)->border_width;
 372       y = widget->allocation.y + (widget->allocation.height - indicator_size) / 2;
 373
 374       child = GTK_BIN (check_button)->child;
 375       if (!interior_focus || !(child && GTK_WIDGET_VISIBLE (child)))
 376         x += focus_width + focus_pad;
 377
 378       if (toggle_button->inconsistent)
 379         shadow_type = GTK_SHADOW_ETCHED_IN;
 380       else if (toggle_button->active)
 381         shadow_type = GTK_SHADOW_IN;
 382       else
 383         shadow_type = GTK_SHADOW_OUT;
 384
 385       if (button->activate_timeout || (button->button_down && button->in_button))
 386         state_type = GTK_STATE_ACTIVE;
 387       else if (button->in_button)
 388         state_type = GTK_STATE_PRELIGHT;
 389       else if (!GTK_WIDGET_IS_SENSITIVE (widget))
 390         state_type = GTK_STATE_INSENSITIVE;
 391       else
 392         state_type = GTK_STATE_NORMAL;
 393
 394       if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
 395         x = widget->allocation.x + widget->allocation.width - (indicator_size + x - widget->allocation.x);
 396
 397       if (GTK_WIDGET_STATE (toggle_button) == GTK_STATE_PRELIGHT)
 398         {
 399           GdkRectangle restrict_area;
 400           GdkRectangle new_area;
 401
 402           restrict_area.x = widget->allocation.x + GTK_CONTAINER (widget)->border_width;
 403           restrict_area.y = widget->allocation.y + GTK_CONTAINER (widget)->border_width;
 404           restrict_area.width = widget->allocation.width - (2 * GTK_CONTAINER (widget)->border_width);
 405           restrict_area.height = widget->allocation.height - (2 * GTK_CONTAINER (widget)->border_width);
 406
 407           if (gdk_rectangle_intersect (area, &restrict_area, &new_area))
 408             {
 409               gtk_paint_flat_box (widget->style, widget->window, GTK_STATE_PRELIGHT,
 410                                   GTK_SHADOW_ETCHED_OUT,
 411                                   area, widget, "checkbutton",
 412                                   new_area.x, new_area.y,
 413                                   new_area.width, new_area.height);
 414             }
 415         }
 416
 417       gtk_paint_check (widget->style, widget->window,
 418                        state_type, shadow_type,
 419                        area, widget, "checkbutton",
 420                        x, y, indicator_size, indicator_size);
 421     }
 422 }
 423
 424 #define __GTK_CHECK_BUTTON_C__
 425 #include "gtkaliasdef.c"