Work in Progress. The server keeps the client window up to date on layer movement/resizing. This fixes quite a few problems and brings support for FrameMoved and Resized hooks. But implementing it this way has its own set of problem, most importantly: When a BView calles Window()->CurrentMessage() in its FrameMoved/Resized hooks, it will see something very different from what it would see in R5. This needs to be fixed, but I have not had a good idea how to do this other than faking the current message in BWindow, which I didn't look into.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12689 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-05-16 15:39:58 +00:00
parent a1c5fb3432
commit ad6b480400
6 changed files with 102 additions and 16 deletions
@@ -917,7 +917,58 @@ void BWindow::DispatchMessage(BMessage *msg, BHandler *target)
 			fLink->Flush();
 			break;
 		}
+		case B_VIEW_RESIZED:
 		case B_VIEW_MOVED:
+		{
+			// NOTE: The problem with this implementation is that BView::Window()->CurrentMessage()
+			// will show this message, and not what it used to be on R5. This might break apps and
+			// we need to fix this here or change the way this feature is implemented. However, this
+			// implementation shows what has to be done when Layers are moved or resized inside the
+			// app_server. This message is generated from Layer::move_by() and resize_by() in
+			// Layer::AddToViewsWithInvalidCoords().
+			int32 token;
+			BPoint frameLeftTop;
+			float width;
+			float height;
+			BView* view;
+			for (int32 i = 0; msg->FindInt32("_token", i, &token) >= B_OK; i++) {
+				if (token >= 0) {
+					msg->FindPoint("where", i, &frameLeftTop);
+					msg->FindFloat("width", i, &width);
+					msg->FindFloat("height", i, &height);
+					if ((view = findView(top_view, token))) {
+						// update the views offset in parent
+						if (view->originX != frameLeftTop.x || view->originY != frameLeftTop.y) {
+//printf("updating position (%.1f, %.1f): %s\n", frameLeftTop.x, frameLeftTop.y, view->Name());
+							view->originX = frameLeftTop.x;
+							view->originY = frameLeftTop.y;
+							// optionally call FrameMoved
+							if (view->fFlags & B_FRAME_EVENTS) {
+								STRACE(("Calling BView(%s)::FrameMoved( %.1f, %.1f )\n", view->Name(),
+										frameLeftTop.x, frameLeftTop.y));
+								view->FrameMoved(frameLeftTop);
+							}
+						}
+						// update the views width and height
+						if (view->fBounds.Width() != width || view->fBounds.Height() != height) {
+//printf("updating size (%.1f, %.1f): %s\n", width, height, view->Name());
+							// TODO: does this work when a views left/top side is resized?
+							view->fBounds.right = view->fBounds.left + width;
+							view->fBounds.bottom = view->fBounds.top + height;
+							// optionally call FrameResized
+							if (view->fFlags & B_FRAME_EVENTS) {
+								STRACE(("Calling BView(%s)::FrameResized( %f, %f )\n", view->Name(), width, height));
+								view->FrameResized(width, height);
+							}
+						}
+					} else {
+						fprintf(stderr, "***PANIC: BW: Can't find view with ID: %ld !***\n", token);
+					}
+				}
+			}
+			break;
+		}
+/*		case B_VIEW_MOVED:
 		{
 			// NOTE: This message only arrives if the
 			// view has flags B_FRAME_EVENTS
@@ -963,10 +1014,10 @@ void BWindow::DispatchMessage(BMessage *msg, BHandler *target)
 			}
 			else
 				printf("***PANIC: BW: Can't find view with ID: %ld !***\n", token);
-	
 			break;
 		}
-		
+*/
+
 		case _MENUS_DONE_:
 			MenusEnded();
 			break;