diff options
Diffstat (limited to 'src/Fl_Double_Window.cxx')
| -rw-r--r-- | src/Fl_Double_Window.cxx | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/src/Fl_Double_Window.cxx b/src/Fl_Double_Window.cxx index 8145dfdf1..9bf615e2d 100644 --- a/src/Fl_Double_Window.cxx +++ b/src/Fl_Double_Window.cxx @@ -1,5 +1,5 @@ // -// "$Id: Fl_Double_Window.cxx,v 1.12.2.4.2.2 2001/12/04 03:03:17 matthiaswm Exp $" +// "$Id: Fl_Double_Window.cxx,v 1.12.2.4.2.3 2001/12/06 00:17:47 matthiaswm Exp $" // // Double-buffered window code for the Fast Light Tool Kit (FLTK). // @@ -103,7 +103,7 @@ GWorldPtr fl_create_offscreen(int w, int h) { GWorldPtr gw; Rect bounds; bounds.left=0; bounds.right=w; bounds.top=0; bounds.bottom=h; - QDErr err = NewGWorld(&gw, 0, &bounds, 0L, 0L, useTempMem); + QDErr err = NewGWorld(&gw, 0, &bounds, 0L, 0L, 0); // 'useTempMem' should not be used (says the Carbon port manual) if ( err == -108 ) { } // fl_message( "The application memory is low. Please increase the initial memory assignment.\n" ); @@ -116,6 +116,7 @@ GWorldPtr fl_create_offscreen(int w, int h) { */ void fl_copy_offscreen(int x,int y,int w,int h,GWorldPtr gWorld,int srcx,int srcy) { Rect src; + if ( !gWorld ) return; src.top = srcy; src.left = srcx; src.bottom = srcy+h; src.right = srcx+w; Rect dst; GrafPtr dstPort; GetPort(&dstPort); @@ -145,11 +146,10 @@ void fl_begin_offscreen(GWorldPtr gWorld) { GetGWorld( &prevPort, &prevGD ); if ( gWorld ) { - SetGWorld( gWorld, 0L ); + SetGWorld( gWorld, 0L ); // sets the correct port PixMapHandle pm = GetGWorldPixMap(gWorld); LockPixels(pm); - fl_window = (Window)prevPort; - SetPort( GetWindowPort(fl_window) ); + fl_window = GetWindowFromPort( gWorld ); } fl_push_no_clip(); } @@ -164,8 +164,8 @@ void fl_end_offscreen() { fl_pop_clip(); PixMapHandle pm = GetGWorldPixMap(currPort); UnlockPixels(pm); - fl_window = (Window)prevPort; SetGWorld( prevPort, prevGD ); + fl_window = GetWindowFromPort( prevPort ); } extern void fl_restore_clip(); @@ -187,7 +187,14 @@ void Fl_Double_Window::flush(int eraseoverlay) { XdbeAllocateBackBufferName(fl_display, fl_xid(this), XdbeUndefined); else #endif +#ifdef __APPLE__ + // the Apple OS X window manager double buffers ALL windows anyway, so there is no need to waste memory and time + // BTW: Windows2000 and later also forces doublebuffering if transparent windows are beeing used (alpha channel) + if ( !QDIsPortBuffered( GetWindowPort(myi->xid) ) ) myi->other_xid = fl_create_offscreen(w(), h()); +#else + myi->other_xid = fl_create_offscreen(w(), h()); +#endif clear_damage(FL_DAMAGE_ALL); } #if USE_XDBE @@ -242,7 +249,11 @@ void Fl_Double_Window::flush(int eraseoverlay) { // on Irix (at least) it is faster to reduce the area copied to // the current clip region: int X,Y,W,H; fl_clip_box(0,0,w(),h(),X,Y,W,H); +#ifdef __APPLE__ + if (myi->other_xid) fl_copy_offscreen(X, Y, W, H, myi->other_xid, X, Y); +#else fl_copy_offscreen(X, Y, W, H, myi->other_xid, X, Y); +#endif } void Fl_Double_Window::resize(int X,int Y,int W,int H) { @@ -275,5 +286,5 @@ Fl_Double_Window::~Fl_Double_Window() { } // -// End of "$Id: Fl_Double_Window.cxx,v 1.12.2.4.2.2 2001/12/04 03:03:17 matthiaswm Exp $". +// End of "$Id: Fl_Double_Window.cxx,v 1.12.2.4.2.3 2001/12/06 00:17:47 matthiaswm Exp $". // |