src/gtk/win_gtk.c

   1 /* ///////////////////////////////////////////////////////////////////////////
   2 // Name:        win_gtk.c
   3 // Purpose:     native GTK+ widget for wxWindows
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////// */
   9
  10 #include "wx/gtk/win_gtk.h"
  11 #include <gtk/gtkfeatures.h>
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif /* __cplusplus */
  16
  17 static void gtk_myfixed_class_init    (GtkMyFixedClass    *klass);
  18 static void gtk_myfixed_init          (GtkMyFixed         *myfixed);
  19 static void gtk_myfixed_map           (GtkWidget        *widget);
  20 static void gtk_myfixed_unmap         (GtkWidget        *widget);
  21 static void gtk_myfixed_realize       (GtkWidget        *widget);
  22 static void gtk_myfixed_size_request  (GtkWidget        *widget,
  23                                      GtkRequisition   *requisition);
  24 static void gtk_myfixed_size_allocate (GtkWidget        *widget,
  25                                      GtkAllocation    *allocation);
  26 static void gtk_myfixed_paint         (GtkWidget        *widget,
  27                                      GdkRectangle     *area);
  28 static void gtk_myfixed_draw          (GtkWidget        *widget,
  29                                      GdkRectangle     *area);
  30 static gint gtk_myfixed_expose        (GtkWidget        *widget,
  31                                      GdkEventExpose   *event);
  32 static void gtk_myfixed_add           (GtkContainer     *container,
  33                                      GtkWidget        *widget);
  34 static void gtk_myfixed_remove        (GtkContainer     *container,
  35                                      GtkWidget        *widget);
  36 static void gtk_myfixed_foreach       (GtkContainer     *container,
  37 #if (GTK_MINOR_VERSION == 1)
  38                                      gboolean         include_internals,
  39 #endif
  40                                      GtkCallback      callback,
  41                                      gpointer         callback_data);
  42
  43
  44 static GtkContainerClass *parent_class = NULL;
  45
  46
  47 guint
  48 gtk_myfixed_get_type ()
  49 {
  50   static guint myfixed_type = 0;
  51
  52   if (!myfixed_type)
  53     {
  54       GtkTypeInfo myfixed_info =
  55       {
  56         "GtkMyFixed",
  57         sizeof (GtkMyFixed),
  58         sizeof (GtkMyFixedClass),
  59         (GtkClassInitFunc) gtk_myfixed_class_init,
  60         (GtkObjectInitFunc) gtk_myfixed_init,
  61         (GtkArgSetFunc) NULL,
  62         (GtkArgGetFunc) NULL,
  63       };
  64
  65       myfixed_type = gtk_type_unique (gtk_container_get_type (), &myfixed_info);
  66     }
  67
  68   return myfixed_type;
  69 }
  70
  71 static void
  72 gtk_myfixed_class_init (GtkMyFixedClass *klass)
  73 {
  74   GtkObjectClass *object_class;
  75   GtkWidgetClass *widget_class;
  76   GtkContainerClass *container_class;
  77
  78   object_class = (GtkObjectClass*) klass;
  79   widget_class = (GtkWidgetClass*) klass;
  80   container_class = (GtkContainerClass*) klass;
  81
  82   parent_class = gtk_type_class (gtk_container_get_type ());
  83
  84   widget_class->map = gtk_myfixed_map;
  85   widget_class->unmap = gtk_myfixed_unmap;
  86   widget_class->realize = gtk_myfixed_realize;
  87   widget_class->size_request = gtk_myfixed_size_request;
  88   widget_class->size_allocate = gtk_myfixed_size_allocate;
  89   widget_class->draw = gtk_myfixed_draw;
  90   widget_class->expose_event = gtk_myfixed_expose;
  91
  92   container_class->add = gtk_myfixed_add;
  93   container_class->remove = gtk_myfixed_remove;
  94 #if (GTK_MINOR_VERSION == 1)
  95   container_class->forall = gtk_myfixed_foreach;
  96 #else
  97   container_class->foreach = gtk_myfixed_foreach;
  98 #endif
  99 }
 100
 101 static void
 102 gtk_myfixed_init (GtkMyFixed *myfixed)
 103 {
 104   GTK_WIDGET_UNSET_FLAGS (myfixed, GTK_NO_WINDOW);
 105   GTK_WIDGET_SET_FLAGS (myfixed, GTK_BASIC);
 106
 107   myfixed->children = NULL;
 108 }
 109
 110 GtkWidget*
 111 gtk_myfixed_new ()
 112 {
 113   GtkMyFixed *myfixed;
 114
 115   myfixed = gtk_type_new (gtk_myfixed_get_type ());
 116
 117   return GTK_WIDGET (myfixed);
 118 }
 119
 120 void
 121 gtk_myfixed_put (GtkMyFixed       *myfixed,
 122                GtkWidget      *widget,
 123                gint16         x,
 124                gint16         y)
 125 {
 126   GtkMyFixedChild *child_info;
 127
 128   g_return_if_fail (myfixed != NULL);
 129   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 130   g_return_if_fail (widget != NULL);
 131
 132   child_info = g_new (GtkMyFixedChild, 1);
 133   child_info->widget = widget;
 134   child_info->x = x;
 135   child_info->y = y;
 136
 137   gtk_widget_set_parent (widget, GTK_WIDGET (myfixed));
 138
 139   myfixed->children = g_list_append (myfixed->children, child_info);
 140
 141   if (GTK_WIDGET_REALIZED (myfixed) && !GTK_WIDGET_REALIZED (widget))
 142     gtk_widget_realize (widget);
 143
 144   if (GTK_WIDGET_MAPPED (myfixed) && !GTK_WIDGET_MAPPED (widget))
 145     gtk_widget_map (widget);
 146
 147   if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 148     gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 149 }
 150
 151 void
 152 gtk_myfixed_move (GtkMyFixed       *myfixed,
 153                 GtkWidget      *widget,
 154                 gint16         x,
 155                 gint16         y)
 156 {
 157   GtkMyFixedChild *child;
 158   GList *children;
 159
 160   g_return_if_fail (myfixed != NULL);
 161   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 162   g_return_if_fail (widget != NULL);
 163
 164   children = myfixed->children;
 165   while (children)
 166     {
 167       child = children->data;
 168       children = children->next;
 169
 170       if (child->widget == widget)
 171         {
 172           child->x = x;
 173           child->y = y;
 174
 175           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 176             gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 177
 178           break;
 179         }
 180     }
 181 }
 182
 183 static void
 184 gtk_myfixed_map (GtkWidget *widget)
 185 {
 186   GtkMyFixed *myfixed;
 187   GtkMyFixedChild *child;
 188   GList *children;
 189
 190   g_return_if_fail (widget != NULL);
 191   g_return_if_fail (GTK_IS_MYFIXED (widget));
 192
 193   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 194   myfixed = GTK_MYFIXED (widget);
 195
 196   gdk_window_show (widget->window);
 197
 198   children = myfixed->children;
 199   while (children)
 200     {
 201       child = children->data;
 202       children = children->next;
 203
 204       if (GTK_WIDGET_VISIBLE (child->widget) &&
 205           !GTK_WIDGET_MAPPED (child->widget))
 206         gtk_widget_map (child->widget);
 207     }
 208 }
 209
 210 static void
 211 gtk_myfixed_unmap (GtkWidget *widget)
 212 {
 213   g_return_if_fail (widget != NULL);
 214   g_return_if_fail (GTK_IS_MYFIXED (widget));
 215
 216   GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 217 }
 218
 219 static void
 220 gtk_myfixed_realize (GtkWidget *widget)
 221 {
 222   GtkMyFixed *myfixed;
 223   GdkWindowAttr attributes;
 224   gint attributes_mask;
 225
 226   g_return_if_fail (widget != NULL);
 227   g_return_if_fail (GTK_IS_MYFIXED (widget));
 228
 229   myfixed = GTK_MYFIXED (widget);
 230
 231   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 232
 233   attributes.window_type = GDK_WINDOW_CHILD;
 234   attributes.x = widget->allocation.x;
 235   attributes.y = widget->allocation.y;
 236   attributes.width = 32000;
 237   attributes.height = 32000;
 238   attributes.wclass = GDK_INPUT_OUTPUT;
 239   attributes.visual = gtk_widget_get_visual (widget);
 240   attributes.colormap = gtk_widget_get_colormap (widget);
 241   attributes.event_mask = gtk_widget_get_events (widget);
 242   attributes.event_mask |=
 243   GDK_EXPOSURE_MASK     |
 244   GDK_POINTER_MOTION_MASK       |
 245   GDK_BUTTON_MOTION_MASK        |
 246   GDK_BUTTON1_MOTION_MASK       |
 247   GDK_BUTTON2_MOTION_MASK       |
 248   GDK_BUTTON3_MOTION_MASK       |
 249   GDK_BUTTON_PRESS_MASK         |
 250   GDK_BUTTON_RELEASE_MASK       |
 251   GDK_KEY_PRESS_MASK            |
 252   GDK_KEY_RELEASE_MASK          |
 253   GDK_ENTER_NOTIFY_MASK         |
 254   GDK_LEAVE_NOTIFY_MASK         |
 255   GDK_FOCUS_CHANGE_MASK;
 256
 257   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 258
 259   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes,
 260                                    attributes_mask);
 261   gdk_window_set_user_data (widget->window, widget);
 262
 263   widget->style = gtk_style_attach (widget->style, widget->window);
 264   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 265 }
 266
 267 static void
 268 gtk_myfixed_size_request (GtkWidget      *widget,
 269                         GtkRequisition *requisition)
 270 {
 271   GtkMyFixed *myfixed;
 272   GtkMyFixedChild *child;
 273   GList *children;
 274
 275   g_return_if_fail (widget != NULL);
 276   g_return_if_fail (GTK_IS_MYFIXED (widget));
 277   g_return_if_fail (requisition != NULL);
 278
 279   myfixed = GTK_MYFIXED (widget);
 280
 281   requisition->width = 0;
 282   requisition->height = 0;
 283
 284   children = myfixed->children;
 285   while (children)
 286     {
 287       child = children->data;
 288       children = children->next;
 289
 290       if (GTK_WIDGET_VISIBLE (child->widget))
 291         {
 292           gtk_widget_size_request (child->widget, &child->widget->requisition);
 293         }
 294     }
 295 }
 296
 297 static void
 298 gtk_myfixed_size_allocate (GtkWidget     *widget,
 299                          GtkAllocation *allocation)
 300 {
 301   GtkMyFixed *myfixed;
 302   GtkMyFixedChild *child;
 303   GtkAllocation child_allocation;
 304   GList *children;
 305   guint16 border_width;
 306
 307   g_return_if_fail (widget != NULL);
 308   g_return_if_fail (GTK_IS_MYFIXED(widget));
 309   g_return_if_fail (allocation != NULL);
 310
 311   myfixed = GTK_MYFIXED (widget);
 312
 313   widget->allocation = *allocation;
 314   if (GTK_WIDGET_REALIZED (widget))
 315     gdk_window_move_resize (widget->window, allocation->x, allocation->y, 32000, 32000 );
 316
 317   border_width = GTK_CONTAINER (myfixed)->border_width;
 318
 319   children = myfixed->children;
 320   while (children)
 321     {
 322       child = children->data;
 323       children = children->next;
 324
 325       if (GTK_WIDGET_VISIBLE (child->widget))
 326         {
 327           child_allocation.x = child->x + border_width;
 328           child_allocation.y = child->y + border_width;
 329           child_allocation.width = child->widget->requisition.width;
 330           child_allocation.height = child->widget->requisition.height;
 331           gtk_widget_size_allocate (child->widget, &child_allocation);
 332         }
 333     }
 334 }
 335
 336 static void
 337 gtk_myfixed_paint (GtkWidget    *widget,
 338                  GdkRectangle *area)
 339 {
 340   g_return_if_fail (widget != NULL);
 341   g_return_if_fail (GTK_IS_MYFIXED (widget));
 342   g_return_if_fail (area != NULL);
 343
 344   if (GTK_WIDGET_DRAWABLE (widget))
 345       gdk_window_clear_area (widget->window,
 346                              area->x, area->y,
 347                              area->width, area->height);
 348 }
 349
 350 static void
 351 gtk_myfixed_draw (GtkWidget    *widget,
 352                 GdkRectangle *area)
 353 {
 354   GtkMyFixed *myfixed;
 355   GtkMyFixedChild *child;
 356   GdkRectangle child_area;
 357   GList *children;
 358
 359   g_return_if_fail (widget != NULL);
 360   g_return_if_fail (GTK_IS_MYFIXED (widget));
 361
 362   if (GTK_WIDGET_DRAWABLE (widget))
 363     {
 364       myfixed = GTK_MYFIXED (widget);
 365       gtk_myfixed_paint (widget, area);
 366
 367       children = myfixed->children;
 368       while (children)
 369         {
 370           child = children->data;
 371           children = children->next;
 372
 373           if (gtk_widget_intersect (child->widget, area, &child_area))
 374             gtk_widget_draw (child->widget, &child_area);
 375         }
 376     }
 377 }
 378
 379 static gint
 380 gtk_myfixed_expose (GtkWidget      *widget,
 381                   GdkEventExpose *event)
 382 {
 383   GtkMyFixed *myfixed;
 384   GtkMyFixedChild *child;
 385   GdkEventExpose child_event;
 386   GList *children;
 387
 388   g_return_val_if_fail (widget != NULL, FALSE);
 389   g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE);
 390   g_return_val_if_fail (event != NULL, FALSE);
 391
 392   if (GTK_WIDGET_DRAWABLE (widget))
 393     {
 394       myfixed = GTK_MYFIXED (widget);
 395
 396       child_event = *event;
 397
 398       children = myfixed->children;
 399       while (children)
 400         {
 401           child = children->data;
 402           children = children->next;
 403
 404           if (GTK_WIDGET_NO_WINDOW (child->widget) &&
 405               gtk_widget_intersect (child->widget, &event->area,
 406                                     &child_event.area))
 407             gtk_widget_event (child->widget, (GdkEvent*) &child_event);
 408         }
 409     }
 410
 411   return FALSE;
 412 }
 413
 414 static void
 415 gtk_myfixed_add (GtkContainer *container,
 416                GtkWidget    *widget)
 417 {
 418   g_return_if_fail (container != NULL);
 419   g_return_if_fail (GTK_IS_MYFIXED (container));
 420   g_return_if_fail (widget != NULL);
 421
 422   gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0);
 423 }
 424
 425 static void
 426 gtk_myfixed_remove (GtkContainer *container,
 427                   GtkWidget    *widget)
 428 {
 429   GtkMyFixed *myfixed;
 430   GtkMyFixedChild *child;
 431   GList *children;
 432
 433   g_return_if_fail (container != NULL);
 434   g_return_if_fail (GTK_IS_MYFIXED (container));
 435   g_return_if_fail (widget != NULL);
 436
 437   myfixed = GTK_MYFIXED (container);
 438
 439   children = myfixed->children;
 440   while (children)
 441     {
 442       child = children->data;
 443
 444       if (child->widget == widget)
 445         {
 446           gtk_widget_unparent (widget);
 447
 448           myfixed->children = g_list_remove_link (myfixed->children, children);
 449           g_list_free (children);
 450           g_free (child);
 451
 452           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
 453             gtk_widget_queue_resize (GTK_WIDGET (container));
 454
 455           break;
 456         }
 457
 458       children = children->next;
 459     }
 460 }
 461
 462 static void
 463 gtk_myfixed_foreach (GtkContainer *container,
 464 #if (GTK_MINOR_VERSION == 1)
 465                    gboolean      include_internals,
 466 #endif
 467                    GtkCallback   callback,
 468                    gpointer      callback_data)
 469 {
 470   GtkMyFixed *myfixed;
 471   GtkMyFixedChild *child;
 472   GList *children;
 473
 474   g_return_if_fail (container != NULL);
 475   g_return_if_fail (GTK_IS_MYFIXED (container));
 476   g_return_if_fail (callback != NULL);
 477
 478   myfixed = GTK_MYFIXED (container);
 479
 480   children = myfixed->children;
 481   while (children)
 482     {
 483       child = children->data;
 484       children = children->next;
 485
 486       (* callback) (child->widget, callback_data);
 487     }
 488 }
 489
 490
 491 #ifdef __cplusplus
 492 }
 493 #endif /* __cplusplus */
 494