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   myfixed->scroll_offset_x = 0;
 111   myfixed->scroll_offset_y = 0;
 112
 113   return GTK_WIDGET (myfixed);
 114 }
 115
 116 void
 117 gtk_myfixed_set_offset (GtkMyFixed     *myfixed,
 118                         gint16         x,
 119                         gint16         y)
 120 {
 121   GtkWidget *widget;
 122
 123   g_return_if_fail (myfixed != NULL);
 124   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 125
 126   myfixed->scroll_offset_x = x;
 127   myfixed->scroll_offset_y = y;
 128
 129   widget = GTK_WIDGET( myfixed );
 130
 131   if (GTK_WIDGET_REALIZED( GTK_WIDGET(myfixed) ))
 132     gdk_window_move_resize (widget->window,
 133                             widget->allocation.x + x,
 134                             widget->allocation.y + y,
 135                             32000,
 136                             32000);
 137 }
 138
 139 void
 140 gtk_myfixed_put (GtkMyFixed       *myfixed,
 141                GtkWidget      *widget,
 142                gint16         x,
 143                gint16         y)
 144 {
 145   GtkMyFixedChild *child_info;
 146
 147   g_return_if_fail (myfixed != NULL);
 148   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 149   g_return_if_fail (widget != NULL);
 150
 151   child_info = g_new (GtkMyFixedChild, 1);
 152   child_info->widget = widget;
 153   child_info->x = x;
 154   child_info->y = y;
 155
 156   gtk_widget_set_parent (widget, GTK_WIDGET (myfixed));
 157
 158   myfixed->children = g_list_append (myfixed->children, child_info);
 159
 160   if (GTK_WIDGET_REALIZED (myfixed) && !GTK_WIDGET_REALIZED (widget))
 161     gtk_widget_realize (widget);
 162
 163   if (GTK_WIDGET_MAPPED (myfixed) && !GTK_WIDGET_MAPPED (widget))
 164     gtk_widget_map (widget);
 165
 166   if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 167     gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 168 }
 169
 170 void
 171 gtk_myfixed_move (GtkMyFixed       *myfixed,
 172                 GtkWidget      *widget,
 173                 gint16         x,
 174                 gint16         y)
 175 {
 176   GtkMyFixedChild *child;
 177   GList *children;
 178
 179   g_return_if_fail (myfixed != NULL);
 180   g_return_if_fail (GTK_IS_MYFIXED (myfixed));
 181   g_return_if_fail (widget != NULL);
 182
 183   children = myfixed->children;
 184   while (children)
 185     {
 186       child = children->data;
 187       children = children->next;
 188
 189       if (child->widget == widget)
 190         {
 191           child->x = x;
 192           child->y = y;
 193
 194           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (myfixed))
 195             gtk_widget_queue_resize (GTK_WIDGET (myfixed));
 196
 197           break;
 198         }
 199     }
 200 }
 201
 202 static void
 203 gtk_myfixed_map (GtkWidget *widget)
 204 {
 205   GtkMyFixed *myfixed;
 206   GtkMyFixedChild *child;
 207   GList *children;
 208
 209   g_return_if_fail (widget != NULL);
 210   g_return_if_fail (GTK_IS_MYFIXED (widget));
 211
 212   GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
 213   myfixed = GTK_MYFIXED (widget);
 214
 215   gdk_window_show (widget->window);
 216
 217   children = myfixed->children;
 218   while (children)
 219     {
 220       child = children->data;
 221       children = children->next;
 222
 223       if (GTK_WIDGET_VISIBLE (child->widget) &&
 224           !GTK_WIDGET_MAPPED (child->widget))
 225         gtk_widget_map (child->widget);
 226     }
 227 }
 228
 229 static void
 230 gtk_myfixed_unmap (GtkWidget *widget)
 231 {
 232   g_return_if_fail (widget != NULL);
 233   g_return_if_fail (GTK_IS_MYFIXED (widget));
 234
 235   GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
 236 }
 237
 238 static void
 239 gtk_myfixed_realize (GtkWidget *widget)
 240 {
 241   GdkWindowAttr attributes;
 242   gint attributes_mask;
 243
 244   g_return_if_fail (widget != NULL);
 245   g_return_if_fail (GTK_IS_MYFIXED (widget));
 246
 247   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
 248
 249   attributes.window_type = GDK_WINDOW_CHILD;
 250   attributes.x = widget->allocation.x;
 251   attributes.y = widget->allocation.y;
 252   attributes.width = 32000;
 253   attributes.height = 32000;
 254   attributes.wclass = GDK_INPUT_OUTPUT;
 255   attributes.visual = gtk_widget_get_visual (widget);
 256   attributes.colormap = gtk_widget_get_colormap (widget);
 257   attributes.event_mask = gtk_widget_get_events (widget);
 258   attributes.event_mask |=
 259   GDK_EXPOSURE_MASK     |
 260   GDK_POINTER_MOTION_MASK       |
 261   GDK_BUTTON_MOTION_MASK        |
 262   GDK_BUTTON1_MOTION_MASK       |
 263   GDK_BUTTON2_MOTION_MASK       |
 264   GDK_BUTTON3_MOTION_MASK       |
 265   GDK_BUTTON_PRESS_MASK         |
 266   GDK_BUTTON_RELEASE_MASK       |
 267   GDK_KEY_PRESS_MASK            |
 268   GDK_KEY_RELEASE_MASK          |
 269   GDK_ENTER_NOTIFY_MASK         |
 270   GDK_LEAVE_NOTIFY_MASK         |
 271   GDK_FOCUS_CHANGE_MASK;
 272
 273   attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
 274
 275   widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes,
 276                                    attributes_mask);
 277   gdk_window_set_user_data (widget->window, widget);
 278
 279   widget->style = gtk_style_attach (widget->style, widget->window);
 280   gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
 281 }
 282
 283 static void
 284 gtk_myfixed_size_request (GtkWidget      *widget,
 285                         GtkRequisition *requisition)
 286 {
 287   GtkMyFixed *myfixed;
 288   GtkMyFixedChild *child;
 289   GList *children;
 290
 291   g_return_if_fail (widget != NULL);
 292   g_return_if_fail (GTK_IS_MYFIXED (widget));
 293   g_return_if_fail (requisition != NULL);
 294
 295   myfixed = GTK_MYFIXED (widget);
 296
 297   requisition->width = 0;
 298   requisition->height = 0;
 299
 300   children = myfixed->children;
 301   while (children)
 302     {
 303       child = children->data;
 304       children = children->next;
 305
 306       if (GTK_WIDGET_VISIBLE (child->widget))
 307         {
 308           gtk_widget_size_request (child->widget, &child->widget->requisition);
 309         }
 310     }
 311 }
 312
 313 static void
 314 gtk_myfixed_size_allocate (GtkWidget     *widget,
 315                          GtkAllocation *allocation)
 316 {
 317   GtkMyFixed *myfixed;
 318   GtkMyFixedChild *child;
 319   GtkAllocation child_allocation;
 320   GList *children;
 321   guint16 border_width;
 322
 323   g_return_if_fail (widget != NULL);
 324   g_return_if_fail (GTK_IS_MYFIXED(widget));
 325   g_return_if_fail (allocation != NULL);
 326
 327   myfixed = GTK_MYFIXED (widget);
 328
 329   widget->allocation = *allocation;
 330   if (GTK_WIDGET_REALIZED (widget))
 331     gdk_window_move_resize (widget->window,
 332                             allocation->x + myfixed->scroll_offset_x,
 333                             allocation->y + myfixed->scroll_offset_y,
 334                             32000,
 335                             32000
 336                             );
 337
 338   border_width = GTK_CONTAINER (myfixed)->border_width;
 339
 340   children = myfixed->children;
 341   while (children)
 342     {
 343       child = children->data;
 344       children = children->next;
 345
 346       if (GTK_WIDGET_VISIBLE (child->widget))
 347         {
 348           child_allocation.x = child->x + border_width;
 349           child_allocation.y = child->y + border_width;
 350           child_allocation.width = child->widget->requisition.width;
 351           child_allocation.height = child->widget->requisition.height;
 352           gtk_widget_size_allocate (child->widget, &child_allocation);
 353         }
 354     }
 355 }
 356
 357 static void
 358 gtk_myfixed_paint (GtkWidget    *widget,
 359                  GdkRectangle *area)
 360 {
 361   g_return_if_fail (widget != NULL);
 362   g_return_if_fail (GTK_IS_MYFIXED (widget));
 363   g_return_if_fail (area != NULL);
 364
 365   if (GTK_WIDGET_DRAWABLE (widget))
 366       gdk_window_clear_area (widget->window,
 367                              area->x, area->y,
 368                              area->width, area->height);
 369 }
 370
 371 static void
 372 gtk_myfixed_draw (GtkWidget    *widget,
 373                 GdkRectangle *area)
 374 {
 375   GtkMyFixed *myfixed;
 376   GtkMyFixedChild *child;
 377   GdkRectangle child_area;
 378   GList *children;
 379
 380   g_return_if_fail (widget != NULL);
 381   g_return_if_fail (GTK_IS_MYFIXED (widget));
 382
 383   if (GTK_WIDGET_DRAWABLE (widget))
 384     {
 385       myfixed = GTK_MYFIXED (widget);
 386       gtk_myfixed_paint (widget, area);
 387
 388       children = myfixed->children;
 389       while (children)
 390         {
 391           child = children->data;
 392           children = children->next;
 393
 394           if (gtk_widget_intersect (child->widget, area, &child_area))
 395             gtk_widget_draw (child->widget, &child_area);
 396         }
 397     }
 398 }
 399
 400 static gint
 401 gtk_myfixed_expose (GtkWidget      *widget,
 402                   GdkEventExpose *event)
 403 {
 404   GtkMyFixed *myfixed;
 405   GtkMyFixedChild *child;
 406   GdkEventExpose child_event;
 407   GList *children;
 408
 409   g_return_val_if_fail (widget != NULL, FALSE);
 410   g_return_val_if_fail (GTK_IS_MYFIXED (widget), FALSE);
 411   g_return_val_if_fail (event != NULL, FALSE);
 412
 413   if (GTK_WIDGET_DRAWABLE (widget))
 414     {
 415       myfixed = GTK_MYFIXED (widget);
 416
 417       child_event = *event;
 418
 419       children = myfixed->children;
 420       while (children)
 421         {
 422           child = children->data;
 423           children = children->next;
 424
 425           if (GTK_WIDGET_NO_WINDOW (child->widget) &&
 426               gtk_widget_intersect (child->widget, &event->area,
 427                                     &child_event.area))
 428             gtk_widget_event (child->widget, (GdkEvent*) &child_event);
 429         }
 430     }
 431
 432   return FALSE;
 433 }
 434
 435 static void
 436 gtk_myfixed_add (GtkContainer *container,
 437                GtkWidget    *widget)
 438 {
 439   g_return_if_fail (container != NULL);
 440   g_return_if_fail (GTK_IS_MYFIXED (container));
 441   g_return_if_fail (widget != NULL);
 442
 443   gtk_myfixed_put (GTK_MYFIXED (container), widget, 0, 0);
 444 }
 445
 446 static void
 447 gtk_myfixed_remove (GtkContainer *container,
 448                   GtkWidget    *widget)
 449 {
 450   GtkMyFixed *myfixed;
 451   GtkMyFixedChild *child;
 452   GList *children;
 453
 454   g_return_if_fail (container != NULL);
 455   g_return_if_fail (GTK_IS_MYFIXED (container));
 456   g_return_if_fail (widget != NULL);
 457
 458   myfixed = GTK_MYFIXED (container);
 459
 460   children = myfixed->children;
 461   while (children)
 462     {
 463       child = children->data;
 464
 465       if (child->widget == widget)
 466         {
 467           gtk_widget_unparent (widget);
 468
 469           myfixed->children = g_list_remove_link (myfixed->children, children);
 470           g_list_free (children);
 471           g_free (child);
 472
 473           if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (container))
 474             gtk_widget_queue_resize (GTK_WIDGET (container));
 475
 476           break;
 477         }
 478
 479       children = children->next;
 480     }
 481 }
 482
 483 static void
 484 gtk_myfixed_foreach (GtkContainer *container,
 485                    GtkCallback   callback,
 486                    gpointer      callback_data)
 487 {
 488   GtkMyFixed *myfixed;
 489   GtkMyFixedChild *child;
 490   GList *children;
 491
 492   g_return_if_fail (container != NULL);
 493   g_return_if_fail (GTK_IS_MYFIXED (container));
 494   g_return_if_fail (callback != NULL);
 495
 496   myfixed = GTK_MYFIXED (container);
 497
 498   children = myfixed->children;
 499   while (children)
 500     {
 501       child = children->data;
 502       children = children->next;
 503
 504       (* callback) (child->widget, callback_data);
 505     }
 506 }
 507
 508
 509 #ifdef __cplusplus
 510 }
 511 #endif /* __cplusplus */
 512