LibreOffice Module vcl (master)  1
salvd.hxx
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19 
20 #ifndef INCLUDED_VCL_INC_SALVD_HXX
21 #define INCLUDED_VCL_INC_SALVD_HXX
22 
23 #include "salgeom.hxx"
24 
25 class SalGraphics;
26 
29  : public SalGeometryProvider
30 {
31 public:
33  virtual ~SalVirtualDevice() override;
34 
35  // SalGeometryProvider
36  virtual bool IsOffScreen() const override { return true; }
37 
38  // SalGraphics or NULL, but two Graphics for all SalVirtualDevices
39  // must be returned
40  virtual SalGraphics* AcquireGraphics() = 0;
41  virtual void ReleaseGraphics( SalGraphics* pGraphics ) = 0;
42 
43  // Set new size, without saving the old contents
44  virtual bool SetSize( long nNewDX, long nNewDY ) = 0;
45 
46  // Set new size using a buffer at the given address
47  virtual bool SetSizeUsingBuffer( long nNewDX, long nNewDY,
48  sal_uInt8 * /* pBuffer */)
49  {
50  // Only the headless virtual device has an implementation that uses
51  // pBuffer (and bTopDown).
52  return SetSize( nNewDX, nNewDY );
53  }
54 };
55 
56 #endif // INCLUDED_VCL_INC_SALVD_HXX
57 
58 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Interface used to share logic on sizing between SalVirtualDevices and SalFrames.
Definition: salgeom.hxx:62
virtual bool IsOffScreen() const override
Definition: salvd.hxx:36
virtual bool SetSizeUsingBuffer(long nNewDX, long nNewDY, sal_uInt8 *)
Definition: salvd.hxx:47
#define VCL_PLUGIN_PUBLIC
Definition: dllapi.h:40
unsigned char sal_uInt8
A non-visible drawable/buffer (e.g. an X11 Pixmap).
Definition: salvd.hxx:28