examples/Graphics/WS/Simple/Base.h

00001 /*
00002 Copyright (c) 2005-2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
00003 
00004 Redistribution and use in source and binary forms, with or without
00005 modification, are permitted provided that the following conditions are met:
00006 
00007 * Redistributions of source code must retain the above copyright notice, this
00008   list of conditions and the following disclaimer.
00009 * Redistributions in binary form must reproduce the above copyright notice,
00010   this list of conditions and the following disclaimer in the documentation
00011   and/or other materials provided with the distribution.
00012 * Neither the name of Nokia Corporation nor the names of its contributors
00013   may be used to endorse or promote products derived from this software
00014   without specific prior written permission.
00015 
00016 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
00017 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00018 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00019 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
00020 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00021 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00022 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00023 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00024 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00025 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00026 
00027 Description:  
00028 */
00029 
00030 
00031 #if !defined(__SimpleWindowServerApp_H__)
00032 #define __SimpleWindowServerApp_H__
00033 
00034 // Forward declarations
00035 class CWsRedrawer;
00036 class CWindow;
00037 
00038 
00042 
00043 // Base class for all windows
00044 
00045 class CWsClient : public CActive
00046         {
00047 public:
00048         void ConstructL();
00049         // destruct
00050         ~CWsClient();
00051         // main window
00052         virtual void ConstructMainWindowL();
00053         // terminate cleanly
00054         void Exit();
00055         // active object protocol
00056         void IssueRequest(); // request an event
00057         void DoCancel(); // cancel the request
00058         virtual void RunL() = 0; // handle completed request
00059         virtual void HandleKeyEventL (TKeyEvent& aKeyEvent) = 0;
00060 protected:
00061         //construct
00062         CWsClient();
00063         CWsScreenDevice* iScreen;
00064         CWsRedrawer* iRedrawer;
00065         RWsSession iWs;
00066         TWsEvent iWsEvent;
00067 private:
00068         RWindowGroup iGroup;
00069         CWindowGc* iGc;
00070         friend class CWsRedrawer; // needs to get at session
00071         friend class CWindow; // needs to get at session
00072         };
00073 
00074 
00075 
00079 
00080 class CWsRedrawer : public CActive
00081         {
00082 public:
00083         // construct/destruct
00084         CWsRedrawer();
00085         void ConstructL(CWsClient* aClient);
00086         ~CWsRedrawer();
00087         // drawing
00088         void IssueRequest();
00089         void DoCancel();
00090         void RunL();
00091 protected:
00092         CWsClient* iClient;
00093         };
00094 
00095 
00099 
00100 class CWindow : public CBase
00101         {
00102 public:
00103         CWindow(CWsClient* aClient);
00104         void ConstructL (const TRect& aRect, CWindow* aParent=0);
00105         ~CWindow();
00106         // access
00107         RWindow& Window(); // our own window
00108         CWindowGc* SystemGc(); // system graphics context
00109         // drawing
00110         virtual void Draw(const TRect& aRect) = 0;
00111         virtual void HandlePointerEvent (TPointerEvent& aPointerEvent) = 0;
00112 protected:
00113         RWindow iWindow; // window server window
00114         TRect iRect; // rectangle re owning window
00115 private:
00116         CWsClient* iClient; // client including session and group
00117         };
00118 
00119 #endif

Generated by  doxygen 1.6.2