Finished Desktop functions and associated documentation

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2783 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/server/Desktop.cpp

@@ -302,22 +302,54 @@ DisplayDriver *GetGfxDriver(screen_id screen=B_MAIN_SCREEN_ID)
 	\param index The workspace to change
 	\param res Resolution constant from GraphicsDefs.h
 	\param stick If false, resolution will revert to its old value on next boot
-	\param screen ID of the screen to change
+	\param screen ID of the screen to change. Currently unused.
 	\return B_OK if successful, B_ERROR if not.
 	
 	Because of the lack of outside multimonitor support, the screen ID is ignored for now.
 */
 status_t SetSpace(int32 index, int32 res, bool stick=true, screen_id screen=B_MAIN_SCREEN_ID)
 {
-	return B_ERROR;
+	desktop_private::workspacelock.Lock();
+	status_t stat=desktop_private::activescreen->SetSpace(index,res,stick);
+	desktop_private::workspacelock.Unlock();
+	return stat;
 }
 
+/*!
+	\brief Adds a window to the desktop so that it will be displayed
+	\param win Window to add
+	\param workspace index of the workspace to add the window to
+	\param screen Optional screen specifier. Currently unused.
+*/
 void AddWindowToDesktop(ServerWindow *win, int32 workspace=B_CURRENT_WORKSPACE, screen_id screen=B_MAIN_SCREEN_ID)
 {
+	// Workspace() will be non-NULL if it has already been added to the desktop
+	if(!win || win->GetWorkspace())
+		return;
+	
+	desktop_private::workspacelock.Lock();
+	desktop_private::layerlock.Lock();
+
+	Workspace *w=desktop_private::activescreen->GetActiveWorkspace();
+	win->SetWorkspace(w);
+	
+	desktop_private::layerlock.Unlock();
+	desktop_private::workspacelock.Unlock();
 }
 
+/*!
+	\brief Removes a window from the desktop
+	\param win Window to remove
+*/
 void RemoveWindowFromDesktop(ServerWindow *win)
 {
+	desktop_private::workspacelock.Lock();
+	desktop_private::layerlock.Lock();
+	
+	win->SetWorkspace(NULL);
+	
+	desktop_private::layerlock.Unlock();
+	desktop_private::workspacelock.Unlock();
 }
 
 /*!

src/servers/app/server/ServerWindow.cpp

@@ -91,6 +91,7 @@ ServerWindow::ServerWindow(BRect rect, const char *string, uint32 wlook,
 		resume_thread(_monitorthread);
 
 	_workspace_index=index;
+	_workspace=NULL;
 
 	AddWindowToDesktop(this,index);
 }
@@ -448,6 +449,10 @@ void ServerWindow::HandleKeyEvent(int32 code, int8 *buffer)
 {
 }
 
+void ServerWindow::SetWorkspace(Workspace *wkspc)
+{
+}
+
 void ActivateWindow(ServerWindow *oldwin,ServerWindow *newwin)
 {
 /*	if(active_serverwindow==win)

src/servers/app/server/ServerWindow.h

@@ -80,6 +80,7 @@ public:
 	
 	int32 GetWorkspaceIndex(void) { return _workspace_index; }
 	Workspace *GetWorkspace(void) { return _workspace; }
+	void SetWorkspace(Workspace *wkspc);
 
 protected:	
 	friend ServerApp;