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 /*-------------------------------------------------------------------------
  14 // conditional compilation
  15 //------------------------------------------------------------------------- */
  16
  17 #if (GTK_MINOR_VERSION == 1)
  18 #if (GTK_MICRO_VERSION >= 5)
  19 #define NEW_GTK_CONSTRUCT_CODE
  20 #endif
  21 #endif
  22
  23 #ifdef __cplusplus
  24 extern "C" {
  25 #endif /* __cplusplus */
  26
  27 static void gtk_myfixed_class_init    (GtkMyFixedClass    *klass);
  28 static void gtk_myfixed_init          (GtkMyFixed         *myfixed);
  29 static void gtk_myfixed_map           (GtkWidget        *widget);
  30 #ifndef NEW_GTK_CONSTRUCT_CODE
  31 static void gtk_myfixed_unmap         (GtkWidget        *widget);
  32 #endif
  33 static void gtk_myfixed_realize       (GtkWidget        *widget);
  34 static void gtk_myfixed_size_request  (GtkWidget        *widget,
  35                                      GtkRequisition   *requisition);
  36 static void gtk_myfixed_size_allocate (GtkWidget        *widget,
  37                                      GtkAllocation    *allocation);
  38 static void gtk_myfixed_paint         (GtkWidget        *widget,
  39                                      GdkRectangle     *area);
  40 static void gtk_myfixed_draw          (GtkWidget        *widget,
  41                                      GdkRectangle     *area);
  42 static gint gtk_myfixed_expose        (GtkWidget        *widget,
  43                                      GdkEventExpose   *event);
  44 static void gtk_myfixed_add           (GtkContainer     *container,
  45                                      GtkWidget        *widget);
  46 static void gtk_myfixed_remove        (GtkContainer     *container,
  47                                      GtkWidget        *widget);
  48 static void gtk_myfixed_foreach       (GtkContainer     *container,
  49 #if (GTK_MINOR_VERSION == 1)
  50                                      gboolean         include_internals,
  51 #endif
  52                                      GtkCallback      callback,
  53                                      gpointer         callback_data);
  54 #ifdef NEW_GTK_CONSTRUCT_CODE
  55 static GtkType gtk_myfixed_child_type (GtkContainer     *container);
  56 #endif
  57
  58
  59 static GtkContainerClass *parent_class = NULL;
  60
  61
  62 guint
  63 gtk_myfixed_get_type ()
  64 {
  65   static guint myfixed_type = 0;
  66
  67   if (!myfixed_type)
  68     {
  69       GtkTypeInfo myfixed_info =
  70       {
  71         "GtkMyFixed",
  72         sizeof (GtkMyFixed),
  73         sizeof (GtkMyFixedClass),
  74         (GtkClassInitFunc) gtk_myfixed_class_init,
  75         (GtkObjectInitFunc) gtk_myfixed_init,
  76 #ifndef NEW_GTK_CONSTRUCT_CODE
  77         (GtkArgSetFunc) NULL,
  78         (GtkArgGetFunc) NULL,
  79 #else
  80         /* reserved_1 */ NULL,
  81         /* reserved_2 */ NULL,
  82         (GtkClassInitFunc) NULL,
  83 #endif
  84       };
  85
  86       myfixed_type = gtk_type_unique (gtk_container_get_type (), &myfixed_info);
  87     }
  88
  89   return myfixed_type;
  90 }
  91
  92 static void
  93 gtk_myfixed_class_init (GtkMyFixedClass *klass)
  94 {
  95   GtkObjectClass *object_class;
  96   GtkWidgetClass *widget_class;
  97   GtkContainerClass *container_class;
  98
  99   object_class = (GtkObjectClass*) klass;
 100   widget_class = (GtkWidgetClass*) klass;
 101   container_class = (GtkContainerClass*) klass;
 102
 103 #ifndef NEW_GTK_CONSTRUCT_CODE
 104   parent_class = gtk_type_class (gtk_container_get_type ());
 105 #else
 106   parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
 107 #endif
 108
 109   widget_class->map = gtk_myfixed_map;
 110 #ifndef NEW_GTK_CONSTRUCT_CODE
 111   widget_class->unmap = gtk_myfixed_unmap;
 112 #endif
 113   widget_class->realize = gtk_myfixed_realize;
 114   widget_class->size_request = gtk_myfixed_size_request;
 115   widget_class->size_allocate = gtk_myfixed_size_allocate;
 116   widget_class->draw = gtk_myfixed_draw;
 117   widget_class->expose_event = gtk_myfixed_expose;
 118
 119   container_class->add = gtk_myfixed_add;
 120   container_class->remove = gtk_myfixed_remove;
 121 #if (GTK_MINOR_VERSION == 1)
 122   container_class->forall = gtk_myfixed_foreach;
 123 #else
 124   container_class->foreach = gtk_myfixed_foreach;
 125 #endif
 126
 127 #ifdef NEW_GTK_CONSTRUCT_CODE
 128   container_class->child_type = gtk_myfixed_child_type;
 129 #endif
 130 }
 131
 132 #ifdef NEW_GTK_CONSTRUCT_CODE
 133 static GtkType
 134 gtk_myfixed_child_type (GtkContainer     *container)
 135 {
 136   return GTK_TYPE_WIDGET;
 137 }
 138 #endif
 139
 140 static void
 141 gtk_myfixed_init (GtkMyFixed *myfixed)
 142 {
 143   GTK_WIDGET_UNSET_FLAGS (myfixed, GTK_NO_WINDOW);
 144
 145 #ifndef NEW_GTK_CONSTRUCT_CODE
 146   GTK_WIDGET_SET_FLAGS (myfixed, GTK_BASIC);
 147 #endif
 148
 149   myfixed->children = NULL;
 150 }
 151
 152 GtkWidget*
 153 gtk_myfixed_new ()
 154 {
 155   GtkMyFixed *myfixed;
 156
 157   myfixed = gtk_type_new (gtk_myfixed_get_type ());
 158
 159   return GTK_WIDGET (myfixed);
 160 }
 161
 162 void
 163 gtk_myfixed_put (GtkMyFixed       *myfixed,
 164                GtkWidget      *widget,
 165                gint16         x,
 166                gint16         y)
 167 {
 168   GtkMyFixedChild *child_info;
 169
 170   g_return_if_fail (myfixed != NULL);
 171   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 172   g_return_if_fail (widget != NULL);
 173
 174   child_info = g_new (GtkMyFixedChild, 1);
 175   child_info->widget = widget;
 176   child_info->x = x;
 177   child_info->y = y;
 178
 179   gtk_widget_set_parent (widget, GTK_WIDGET (myfixed));
 180
 181   myfixed->children = g_list_append (myfixed->children, child_info);
 182
 183   if (GTK_WIDGET_REALIZED (myfixed) && !GTK_WIDGET_REALIZED (widget))
 184     gtk_widget_realize (widget);
 185
 186   if (GTK_WIDGET_MAPPED (myfixed) && !GTK_WIDGET_MAPPED (widget))
 187     gtk_widget_map (widget);
 188
 189   if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 190     gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 191 }
 192
 193 void
 194 gtk_myfixed_move (GtkMyFixed       *myfixed,
 195                 GtkWidget      *widget,
 196                 gint16         x,
 197                 gint16         y)
 198 {
 199   GtkMyFixedChild *child;
 200   GList *children;
 201
 202   g_return_if_fail (myfixed != NULL);
 203   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 204   g_return_if_fail (widget != NULL);
 205
 206   children = myfixed->children;
 207   while (children)
 208     {
 209       child = children->data;
 210       children = children->next;
 211
 212       if (child->widget == widget)
 213         {
 214           if ((child->x == x) && (child->y == y)) return;
 215
 216           child->x = x;
 217           child->y = y;
 218
 219           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 220             gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 221
 222           break;
 223         }
 224     }
 225 }
 226
 227 static void
 228 gtk_myfixed_map (GtkWidget *widget)
 229 {
 230   GtkMyFixed *myfixed;
 231   GtkMyFixedChild *child;
 232   GList *children;
 233
 234   g_return_if_fail (widget != NULL);
 235   g_return_if_fail (GTK_IS_MYFIXED (widget));
 236
 237   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 238   myfixed = GTK_MYFIXED (widget);
 239
 240   gdk_window_show (widget->window);
 241
 242   children = myfixed->children;
 243   while (children)
 244     {
 245       child = children->data;
 246       children = children->next;
 247
 248       if (GTK_WIDGET_VISIBLE (child->widget) &&
 249           !GTK_WIDGET_MAPPED (child->widget))
 250         gtk_widget_map (child->widget);
 251     }
 252 }
 253
 254 #ifndef NEW_GTK_CONSTRUCT_CODE
 255 static void
 256 gtk_myfixed_unmap (GtkWidget *widget)
 257 {
 258   g_return_if_fail (widget != NULL);
 259   g_return_if_fail (GTK_IS_MYFIXED (widget));
 260
 261   GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 262 }
 263 #endif
 264
 265 static void
 266 gtk_myfixed_realize (GtkWidget *widget)
 267 {
 268   GtkMyFixed *myfixed;
 269   GdkWindowAttr attributes;
 270   gint attributes_mask;
 271
 272   g_return_if_fail (widget != NULL);
 273   g_return_if_fail (GTK_IS_MYFIXED (widget));
 274
 275   myfixed = GTK_MYFIXED (widget);
 276
 277   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 278
 279   attributes.window_type = GDK_WINDOW_CHILD;
 280   attributes.x = widget->allocation.x;
 281   attributes.y = widget->allocation.y;
 282   attributes.width = 32000;
 283   attributes.height = 32000;
 284   attributes.wclass = GDK_INPUT_OUTPUT;
 285   attributes.visual = gtk_widget_get_visual (widget);
 286   attributes.colormap = gtk_widget_get_colormap (widget);
 287   attributes.event_mask = gtk_widget_get_events (widget);
 288   attributes.event_mask |=
 289   GDK_EXPOSURE_MASK     |
 290   GDK_POINTER_MOTION_MASK       |
 291   GDK_BUTTON_MOTION_MASK        |
 292   GDK_BUTTON1_MOTION_MASK       |
 293   GDK_BUTTON2_MOTION_MASK       |
 294   GDK_BUTTON3_MOTION_MASK       |
 295   GDK_BUTTON_PRESS_MASK         |
 296   GDK_BUTTON_RELEASE_MASK       |
 297   GDK_KEY_PRESS_MASK            |
 298   GDK_KEY_RELEASE_MASK          |
 299   GDK_ENTER_NOTIFY_MASK         |
 300   GDK_LEAVE_NOTIFY_MASK         |
 301   GDK_FOCUS_CHANGE_MASK;
 302
 303   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 304
 305   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes,
 306                                    attributes_mask);
 307   gdk_window_set_user_data (widget->window, widget);
 308
 309   widget->style = gtk_style_attach (widget->style, widget->window);
 310   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 311 }
 312
 313 static void
 314 gtk_myfixed_size_request (GtkWidget      *widget,
 315                         GtkRequisition *requisition)
 316 {
 317   GtkMyFixed *myfixed;
 318   GtkMyFixedChild *child;
 319   GList *children;
 320
 321   g_return_if_fail (widget != NULL);
 322   g_return_if_fail (GTK_IS_MYFIXED (widget));
 323   g_return_if_fail (requisition != NULL);
 324
 325   myfixed = GTK_MYFIXED (widget);
 326
 327   requisition->width = 0;
 328   requisition->height = 0;
 329
 330   children = myfixed->children;
 331   while (children)
 332     {
 333       child = children->data;
 334       children = children->next;
 335
 336       if (GTK_WIDGET_VISIBLE (child->widget))
 337         {
 338           gtk_widget_size_request (child->widget, &child->widget->requisition);
 339         }
 340     }
 341 }
 342
 343 static void
 344 gtk_myfixed_size_allocate (GtkWidget     *widget,
 345                          GtkAllocation *allocation)
 346 {
 347   GtkMyFixed *myfixed;
 348   GtkMyFixedChild *child;
 349   GtkAllocation child_allocation;
 350   GList *children;
 351   guint16 border_width;
 352
 353   g_return_if_fail (widget != NULL);
 354   g_return_if_fail (GTK_IS_MYFIXED(widget));
 355   g_return_if_fail (allocation != NULL);
 356
 357   myfixed = GTK_MYFIXED (widget);
 358
 359   widget->allocation = *allocation;
 360   if (GTK_WIDGET_REALIZED (widget))
 361     gdk_window_move_resize (widget->window, allocation->x, allocation->y, 32000, 32000 );
 362
 363   border_width = GTK_CONTAINER (myfixed)->border_width;
 364
 365   children = myfixed->children;
 366   while (children)
 367     {
 368       child = children->data;
 369       children = children->next;
 370
 371       if (GTK_WIDGET_VISIBLE (child->widget))
 372         {
 373           child_allocation.x = child->x + border_width;
 374           child_allocation.y = child->y + border_width;
 375           child_allocation.width = child->widget->requisition.width;
 376           child_allocation.height = child->widget->requisition.height;
 377           gtk_widget_size_allocate (child->widget, &child_allocation);
 378         }
 379     }
 380 }
 381
 382 static void
 383 gtk_myfixed_paint (GtkWidget    *widget,
 384                  GdkRectangle *area)
 385 {
 386   g_return_if_fail (widget != NULL);
 387   g_return_if_fail (GTK_IS_MYFIXED (widget));
 388   g_return_if_fail (area != NULL);
 389
 390   if (GTK_WIDGET_DRAWABLE (widget))
 391       gdk_window_clear_area (widget->window,
 392                              area->x, area->y,
 393                              area->width, area->height);
 394 }
 395
 396 static void
 397 gtk_myfixed_draw (GtkWidget    *widget,
 398                 GdkRectangle *area)
 399 {
 400   GtkMyFixed *myfixed;
 401   GtkMyFixedChild *child;
 402   GdkRectangle child_area;
 403   GList *children;
 404
 405   g_return_if_fail (widget != NULL);
 406   g_return_if_fail (GTK_IS_MYFIXED (widget));
 407
 408   if (GTK_WIDGET_DRAWABLE (widget))
 409     {
 410       myfixed = GTK_MYFIXED (widget);
 411       gtk_myfixed_paint (widget, area);
 412
 413       children = myfixed->children;
 414       while (children)
 415         {
 416           child = children->data;
 417           children = children->next;
 418
 419           if (gtk_widget_intersect (child->widget, area, &child_area))
 420             gtk_widget_draw (child->widget, &child_area);
 421         }
 422     }
 423 }
 424
 425 static gint
 426 gtk_myfixed_expose (GtkWidget      *widget,
 427                   GdkEventExpose *event)
 428 {
 429   GtkMyFixed *myfixed;
 430   GtkMyFixedChild *child;
 431   GdkEventExpose child_event;
 432   GList *children;
 433
 434   g_return_val_if_fail (widget != NULL, FALSE);
 435   g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE);
 436   g_return_val_if_fail (event != NULL, FALSE);
 437
 438   if (GTK_WIDGET_DRAWABLE (widget))
 439     {
 440       myfixed = GTK_MYFIXED (widget);
 441
 442       child_event = *event;
 443
 444       children = myfixed->children;
 445       while (children)
 446         {
 447           child = children->data;
 448           children = children->next;
 449
 450           if (GTK_WIDGET_NO_WINDOW (child->widget) &&
 451               gtk_widget_intersect (child->widget, &event->area,
 452                                     &child_event.area))
 453             gtk_widget_event (child->widget, (GdkEvent*) &child_event);
 454         }
 455     }
 456
 457   return FALSE;
 458 }
 459
 460 static void
 461 gtk_myfixed_add (GtkContainer *container,
 462                GtkWidget    *widget)
 463 {
 464   g_return_if_fail (container != NULL);
 465   g_return_if_fail (GTK_IS_MYFIXED (container));
 466   g_return_if_fail (widget != NULL);
 467
 468   gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0);
 469 }
 470
 471 static void
 472 gtk_myfixed_remove (GtkContainer *container,
 473                   GtkWidget    *widget)
 474 {
 475   GtkMyFixed *myfixed;
 476   GtkMyFixedChild *child;
 477   GList *children;
 478
 479   g_return_if_fail (container != NULL);
 480   g_return_if_fail (GTK_IS_MYFIXED (container));
 481   g_return_if_fail (widget != NULL);
 482
 483   myfixed = GTK_MYFIXED (container);
 484
 485   children = myfixed->children;
 486   while (children)
 487     {
 488       child = children->data;
 489
 490       if (child->widget == widget)
 491         {
 492           gtk_widget_unparent (widget);
 493
 494           myfixed->children = g_list_remove_link (myfixed->children, children);
 495           g_list_free (children);
 496           g_free (child);
 497
 498           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
 499             gtk_widget_queue_resize (GTK_WIDGET (container));
 500
 501           break;
 502         }
 503
 504       children = children->next;
 505     }
 506 }
 507
 508 static void
 509 gtk_myfixed_foreach (GtkContainer *container,
 510 #if (GTK_MINOR_VERSION == 1)
 511                    gboolean      include_internals,
 512 #endif
 513                    GtkCallback   callback,
 514                    gpointer      callback_data)
 515 {
 516   GtkMyFixed *myfixed;
 517   GtkMyFixedChild *child;
 518   GList *children;
 519
 520   g_return_if_fail (container != NULL);
 521   g_return_if_fail (GTK_IS_MYFIXED (container));
 522   g_return_if_fail (callback != NULL);
 523
 524   myfixed = GTK_MYFIXED (container);
 525
 526   children = myfixed->children;
 527   while (children)
 528     {
 529       child = children->data;
 530       children = children->next;
 531
 532       (* callback) (child->widget, callback_data);
 533     }
 534 }
 535
 536
 537 #ifdef __cplusplus
 538 }
 539 #endif /* __cplusplus */
 540