| | 1 | ///////////////////////////////////////////////////////////////////////////// |
| | 2 | // Name: antiflickpl.h |
| | 3 | // Purpose: Double-buffering plugin class for reducing flicker |
| | 4 | // Author: Aleksandras Gluchovas (@Lithuania) |
| | 5 | // Modified by: |
| | 6 | // Created: 23/10/98 |
| | 7 | // RCS-ID: $Id$ |
| | 8 | // Copyright: (c) Aleksandras Gluchovas |
| | 9 | // Licence: wxWindows licence |
| | 10 | ///////////////////////////////////////////////////////////////////////////// |
| | 11 | |
| | 12 | #ifndef __ANTIFLICKPL_G__ |
| | 13 | #define __ANTIFLICKPL_G__ |
| | 14 | |
| | 15 | #include "wx/fl/controlbar.h" |
| | 16 | |
| | 17 | /* |
| | 18 | Implements double-buffering to reduce flicker. |
| | 19 | Bitmap and memory DC buffers are shared 'resources' among all instances of |
| | 20 | antiflicker plugins within the application. |
| | 21 | |
| | 22 | Locking for multithreaded applications is not yet implemented. |
| | 23 | */ |
| | 24 | |
| | 25 | class WXDLLIMPEXP_FL cbAntiflickerPlugin : public cbPluginBase |
| | 26 | { |
| | 27 | DECLARE_DYNAMIC_CLASS( cbAntiflickerPlugin ) |
| | 28 | protected: |
| | 29 | |
| | 30 | static wxBitmap* mpVertBuf; |
| | 31 | static wxBitmap* mpHorizBuf; |
| | 32 | static wxMemoryDC* mpVertBufDc; |
| | 33 | static wxMemoryDC* mpHorizBufDc; |
| | 34 | |
| | 35 | static int mRefCount; |
| | 36 | |
| | 37 | wxDC* mpLRUBufDc; // last-recently-used buffer |
| | 38 | wxRect mLRUArea; // last-recently-used area |
| | 39 | |
| | 40 | protected: |
| | 41 | // Finds a suitable buffer. Returns NULL if a suitable buffer is not present. |
| | 42 | |
| | 43 | wxDC* FindSuitableBuffer( const wxRect& forArea ); |
| | 44 | |
| | 45 | // Allocates a suitable buffer. |
| | 46 | |
| | 47 | wxDC* AllocNewBuffer( const wxRect& forArea ); |
| | 48 | |
| | 49 | // Gets the window device context. |
| | 50 | |
| | 51 | wxDC& GetWindowDC(); |
| | 52 | |
| | 53 | // Gets the client device context. |
| | 54 | |
| | 55 | wxDC& GetClientDC(); |
| | 56 | public: |
| | 57 | |
| | 58 | // Default constructor. |
| | 59 | |
| | 60 | cbAntiflickerPlugin(void); |
| | 61 | |
| | 62 | // Constructor taking frame layout panel, and pane mask. |
| | 63 | |
| | 64 | cbAntiflickerPlugin( wxFrameLayout* pPanel, int paneMask = wxALL_PANES ); |
| | 65 | |
| | 66 | // Destructor. |
| | 67 | |
| | 68 | virtual ~cbAntiflickerPlugin(); |
| | 69 | |
| | 70 | // Handler for plugin event. |
| | 71 | |
| | 72 | void OnStartDrawInArea ( cbStartDrawInAreaEvent& event ); |
| | 73 | |
| | 74 | // Handler for plugin event. |
| | 75 | |
| | 76 | void OnFinishDrawInArea( cbFinishDrawInAreaEvent& event ); |
| | 77 | |
| | 78 | DECLARE_EVENT_TABLE() |
| | 79 | }; |
| | 80 | |
| | 81 | #endif /* __ANTIFLICKPL_G__ */ |
| | 82 | |
projects / wxWidgets.git / blame_incremental