src/gtk/win_gtk.c

   1 /* ///////////////////////////////////////////////////////////////////////////
   2 // Name:        wx_gtk.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // Id:
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////// */
  10
  11 #include "wx/gtk/win_gtk.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                                      GtkCallback      callback,
  38                                      gpointer         callback_data);
  39
  40
  41 static GtkContainerClass *parent_class = NULL;
  42
  43
  44 guint
  45 gtk_myfixed_get_type ()
  46 {
  47   static guint myfixed_type = 0;
  48
  49   if (!myfixed_type)
  50     {
  51       GtkTypeInfo myfixed_info =
  52       {
  53         "GtkMyFixed",
  54         sizeof (GtkMyFixed),
  55         sizeof (GtkMyFixedClass),
  56         (GtkClassInitFunc) gtk_myfixed_class_init,
  57         (GtkObjectInitFunc) gtk_myfixed_init,
  58         (GtkArgSetFunc) NULL,
  59         (GtkArgGetFunc) NULL,
  60       };
  61
  62       myfixed_type = gtk_type_unique (gtk_container_get_type (), &myfixed_info);
  63     }
  64
  65   return myfixed_type;
  66 }
  67
  68 static void
  69 gtk_myfixed_class_init (GtkMyFixedClass *klass)
  70 {
  71   GtkObjectClass *object_class;
  72   GtkWidgetClass *widget_class;
  73   GtkContainerClass *container_class;
  74
  75   object_class = (GtkObjectClass*) klass;
  76   widget_class = (GtkWidgetClass*) klass;
  77   container_class = (GtkContainerClass*) klass;
  78
  79   parent_class = gtk_type_class (gtk_container_get_type ());
  80
  81   widget_class->map = gtk_myfixed_map;
  82   widget_class->unmap = gtk_myfixed_unmap;
  83   widget_class->realize = gtk_myfixed_realize;
  84   widget_class->size_request = gtk_myfixed_size_request;
  85   widget_class->size_allocate = gtk_myfixed_size_allocate;
  86   widget_class->draw = gtk_myfixed_draw;
  87   widget_class->expose_event = gtk_myfixed_expose;
  88
  89   container_class->add = gtk_myfixed_add;
  90   container_class->remove = gtk_myfixed_remove;
  91   container_class->foreach = gtk_myfixed_foreach;
  92 }
  93
  94 static void
  95 gtk_myfixed_init (GtkMyFixed *myfixed)
  96 {
  97   GTK_WIDGET_UNSET_FLAGS (myfixed, GTK_NO_WINDOW);
  98   GTK_WIDGET_SET_FLAGS (myfixed, GTK_BASIC);
  99
 100   myfixed->children = NULL;
 101 }
 102
 103 GtkWidget*
 104 gtk_myfixed_new ()
 105 {
 106   GtkMyFixed *myfixed;
 107
 108   myfixed = gtk_type_new (gtk_myfixed_get_type ());
 109
 110   return GTK_WIDGET (myfixed);
 111 }
 112
 113 void
 114 gtk_myfixed_put (GtkMyFixed       *myfixed,
 115                GtkWidget      *widget,
 116                gint16         x,
 117                gint16         y)
 118 {
 119   GtkMyFixedChild *child_info;
 120
 121   g_return_if_fail (myfixed != NULL);
 122   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 123   g_return_if_fail (widget != NULL);
 124
 125   child_info = g_new (GtkMyFixedChild, 1);
 126   child_info->widget = widget;
 127   child_info->x = x;
 128   child_info->y = y;
 129
 130   gtk_widget_set_parent (widget, GTK_WIDGET (myfixed));
 131
 132   myfixed->children = g_list_append (myfixed->children, child_info);
 133
 134   if (GTK_WIDGET_REALIZED (myfixed) && !GTK_WIDGET_REALIZED (widget))
 135     gtk_widget_realize (widget);
 136
 137   if (GTK_WIDGET_MAPPED (myfixed) && !GTK_WIDGET_MAPPED (widget))
 138     gtk_widget_map (widget);
 139
 140   if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 141     gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 142 }
 143
 144 void
 145 gtk_myfixed_move (GtkMyFixed       *myfixed,
 146                 GtkWidget      *widget,
 147                 gint16         x,
 148                 gint16         y)
 149 {
 150   GtkMyFixedChild *child;
 151   GList *children;
 152
 153   g_return_if_fail (myfixed != NULL);
 154   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 155   g_return_if_fail (widget != NULL);
 156
 157   children = myfixed->children;
 158   while (children)
 159     {
 160       child = children->data;
 161       children = children->next;
 162
 163       if (child->widget == widget)
 164         {
 165           child->x = x;
 166           child->y = y;
 167
 168           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 169             gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 170
 171           break;
 172         }
 173     }
 174 }
 175
 176 static void
 177 gtk_myfixed_map (GtkWidget *widget)
 178 {
 179   GtkMyFixed *myfixed;
 180   GtkMyFixedChild *child;
 181   GList *children;
 182
 183   g_return_if_fail (widget != NULL);
 184   g_return_if_fail (GTK_IS_MYFIXED (widget));
 185
 186   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 187   myfixed = GTK_MYFIXED (widget);
 188
 189   gdk_window_show (widget->window);
 190
 191   children = myfixed->children;
 192   while (children)
 193     {
 194       child = children->data;
 195       children = children->next;
 196
 197       if (GTK_WIDGET_VISIBLE (child->widget) &&
 198           !GTK_WIDGET_MAPPED (child->widget))
 199         gtk_widget_map (child->widget);
 200     }
 201 }
 202
 203 static void
 204 gtk_myfixed_unmap (GtkWidget *widget)
 205 {
 206   g_return_if_fail (widget != NULL);
 207   g_return_if_fail (GTK_IS_MYFIXED (widget));
 208
 209   GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 210 }
 211
 212 static void
 213 gtk_myfixed_realize (GtkWidget *widget)
 214 {
 215   GtkMyFixed *myfixed;
 216   GdkWindowAttr attributes;
 217   gint attributes_mask;
 218
 219   g_return_if_fail (widget != NULL);
 220   g_return_if_fail (GTK_IS_MYFIXED (widget));
 221
 222   myfixed = GTK_MYFIXED (widget);
 223
 224   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 225
 226   attributes.window_type = GDK_WINDOW_CHILD;
 227   attributes.x = widget->allocation.x;
 228   attributes.y = widget->allocation.y;
 229   attributes.width = 32000;
 230   attributes.height = 32000;
 231   attributes.wclass = GDK_INPUT_OUTPUT;
 232   attributes.visual = gtk_widget_get_visual (widget);
 233   attributes.colormap = gtk_widget_get_colormap (widget);
 234   attributes.event_mask = gtk_widget_get_events (widget);
 235   attributes.event_mask |=
 236   GDK_EXPOSURE_MASK     |
 237   GDK_POINTER_MOTION_MASK       |
 238   GDK_BUTTON_MOTION_MASK        |
 239   GDK_BUTTON1_MOTION_MASK       |
 240   GDK_BUTTON2_MOTION_MASK       |
 241   GDK_BUTTON3_MOTION_MASK       |
 242   GDK_BUTTON_PRESS_MASK         |
 243   GDK_BUTTON_RELEASE_MASK       |
 244   GDK_KEY_PRESS_MASK            |
 245   GDK_KEY_RELEASE_MASK          |
 246   GDK_ENTER_NOTIFY_MASK         |
 247   GDK_LEAVE_NOTIFY_MASK         |
 248   GDK_FOCUS_CHANGE_MASK;
 249
 250   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 251
 252   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes,
 253                                    attributes_mask);
 254   gdk_window_set_user_data (widget->window, widget);
 255
 256   widget->style = gtk_style_attach (widget->style, widget->window);
 257   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 258 }
 259
 260 static void
 261 gtk_myfixed_size_request (GtkWidget      *widget,
 262                         GtkRequisition *requisition)
 263 {
 264   GtkMyFixed *myfixed;
 265   GtkMyFixedChild *child;
 266   GList *children;
 267
 268   g_return_if_fail (widget != NULL);
 269   g_return_if_fail (GTK_IS_MYFIXED (widget));
 270   g_return_if_fail (requisition != NULL);
 271
 272   myfixed = GTK_MYFIXED (widget);
 273
 274   requisition->width = 0;
 275   requisition->height = 0;
 276
 277   children = myfixed->children;
 278   while (children)
 279     {
 280       child = children->data;
 281       children = children->next;
 282
 283       if (GTK_WIDGET_VISIBLE (child->widget))
 284         {
 285           gtk_widget_size_request (child->widget, &child->widget->requisition);
 286         }
 287     }
 288 }
 289
 290 static void
 291 gtk_myfixed_size_allocate (GtkWidget     *widget,
 292                          GtkAllocation *allocation)
 293 {
 294   GtkMyFixed *myfixed;
 295   GtkMyFixedChild *child;
 296   GtkAllocation child_allocation;
 297   GList *children;
 298   guint16 border_width;
 299
 300   g_return_if_fail (widget != NULL);
 301   g_return_if_fail (GTK_IS_MYFIXED(widget));
 302   g_return_if_fail (allocation != NULL);
 303
 304   myfixed = GTK_MYFIXED (widget);
 305
 306   widget->allocation = *allocation;
 307   if (GTK_WIDGET_REALIZED (widget))
 308     gdk_window_move_resize (widget->window, allocation->x, allocation->y, 32000, 32000 );
 309
 310   border_width = GTK_CONTAINER (myfixed)->border_width;
 311
 312   children = myfixed->children;
 313   while (children)
 314     {
 315       child = children->data;
 316       children = children->next;
 317
 318       if (GTK_WIDGET_VISIBLE (child->widget))
 319         {
 320           child_allocation.x = child->x + border_width;
 321           child_allocation.y = child->y + border_width;
 322           child_allocation.width = child->widget->requisition.width;
 323           child_allocation.height = child->widget->requisition.height;
 324           gtk_widget_size_allocate (child->widget, &child_allocation);
 325         }
 326     }
 327 }
 328
 329 static void
 330 gtk_myfixed_paint (GtkWidget    *widget,
 331                  GdkRectangle *area)
 332 {
 333   g_return_if_fail (widget != NULL);
 334   g_return_if_fail (GTK_IS_MYFIXED (widget));
 335   g_return_if_fail (area != NULL);
 336
 337   if (GTK_WIDGET_DRAWABLE (widget))
 338       gdk_window_clear_area (widget->window,
 339                              area->x, area->y,
 340                              area->width, area->height);
 341 }
 342
 343 static void
 344 gtk_myfixed_draw (GtkWidget    *widget,
 345                 GdkRectangle *area)
 346 {
 347   GtkMyFixed *myfixed;
 348   GtkMyFixedChild *child;
 349   GdkRectangle child_area;
 350   GList *children;
 351
 352   g_return_if_fail (widget != NULL);
 353   g_return_if_fail (GTK_IS_MYFIXED (widget));
 354
 355   if (GTK_WIDGET_DRAWABLE (widget))
 356     {
 357       myfixed = GTK_MYFIXED (widget);
 358       gtk_myfixed_paint (widget, area);
 359
 360       children = myfixed->children;
 361       while (children)
 362         {
 363           child = children->data;
 364           children = children->next;
 365
 366           if (gtk_widget_intersect (child->widget, area, &child_area))
 367             gtk_widget_draw (child->widget, &child_area);
 368         }
 369     }
 370 }
 371
 372 static gint
 373 gtk_myfixed_expose (GtkWidget      *widget,
 374                   GdkEventExpose *event)
 375 {
 376   GtkMyFixed *myfixed;
 377   GtkMyFixedChild *child;
 378   GdkEventExpose child_event;
 379   GList *children;
 380
 381   g_return_val_if_fail (widget != NULL, FALSE);
 382   g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE);
 383   g_return_val_if_fail (event != NULL, FALSE);
 384
 385   if (GTK_WIDGET_DRAWABLE (widget))
 386     {
 387       myfixed = GTK_MYFIXED (widget);
 388
 389       child_event = *event;
 390
 391       children = myfixed->children;
 392       while (children)
 393         {
 394           child = children->data;
 395           children = children->next;
 396
 397           if (GTK_WIDGET_NO_WINDOW (child->widget) &&
 398               gtk_widget_intersect (child->widget, &event->area,
 399                                     &child_event.area))
 400             gtk_widget_event (child->widget, (GdkEvent*) &child_event);
 401         }
 402     }
 403
 404   return FALSE;
 405 }
 406
 407 static void
 408 gtk_myfixed_add (GtkContainer *container,
 409                GtkWidget    *widget)
 410 {
 411   g_return_if_fail (container != NULL);
 412   g_return_if_fail (GTK_IS_MYFIXED (container));
 413   g_return_if_fail (widget != NULL);
 414
 415   gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0);
 416 }
 417
 418 static void
 419 gtk_myfixed_remove (GtkContainer *container,
 420                   GtkWidget    *widget)
 421 {
 422   GtkMyFixed *myfixed;
 423   GtkMyFixedChild *child;
 424   GList *children;
 425
 426   g_return_if_fail (container != NULL);
 427   g_return_if_fail (GTK_IS_MYFIXED (container));
 428   g_return_if_fail (widget != NULL);
 429
 430   myfixed = GTK_MYFIXED (container);
 431
 432   children = myfixed->children;
 433   while (children)
 434     {
 435       child = children->data;
 436
 437       if (child->widget == widget)
 438         {
 439           gtk_widget_unparent (widget);
 440
 441           myfixed->children = g_list_remove_link (myfixed->children, children);
 442           g_list_free (children);
 443           g_free (child);
 444
 445           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
 446             gtk_widget_queue_resize (GTK_WIDGET (container));
 447
 448           break;
 449         }
 450
 451       children = children->next;
 452     }
 453 }
 454
 455 static void
 456 gtk_myfixed_foreach (GtkContainer *container,
 457                    GtkCallback   callback,
 458                    gpointer      callback_data)
 459 {
 460   GtkMyFixed *myfixed;
 461   GtkMyFixedChild *child;
 462   GList *children;
 463
 464   g_return_if_fail (container != NULL);
 465   g_return_if_fail (GTK_IS_MYFIXED (container));
 466   g_return_if_fail (callback != NULL);
 467
 468   myfixed = GTK_MYFIXED (container);
 469
 470   children = myfixed->children;
 471   while (children)
 472     {
 473       child = children->data;
 474       children = children->next;
 475
 476       (* callback) (child->widget, callback_data);
 477     }
 478 }
 479
 480
 481 #ifdef __cplusplus
 482 }
 483 #endif /* __cplusplus */
 484