Don't create multiple parent-less top level frames in layout sample.

[wxWidgets.git] / include / wx / graphics.h

diff --git a/include/wx/graphics.h b/include/wx/graphics.h
index 276866687050dca0d909c8c1c86b8b22afdb0bf4..656a338d3bdbbda37b3cbb3ec4fae42d7ce0edab 100644 (file)
--- a/include/wx/graphics.h
+++ b/include/wx/graphics.h
@@ -19,18 +19,21 @@
 #include "wx/geometry.h"
 #include "wx/dynarray.h"
 #include "wx/dc.h"
 #include "wx/geometry.h"
 #include "wx/dynarray.h"
 #include "wx/dc.h"

+#include "wx/image.h"

 #include "wx/vector.h"
 
 enum wxAntialiasMode
 {
     wxANTIALIAS_NONE, // should be 0
 #include "wx/vector.h"
 
 enum wxAntialiasMode
 {
     wxANTIALIAS_NONE, // should be 0

-    wxANTIALIAS_DEFAULT,
+    wxANTIALIAS_DEFAULT

 };
 
 enum wxInterpolationQuality
 {
 };
 
 enum wxInterpolationQuality
 {

+    // default interpolation
+    wxINTERPOLATION_DEFAULT,

     // no interpolation
     // no interpolation

-    wxINTERPOLATION_NONE, // should be 0
+    wxINTERPOLATION_NONE, 

     // fast interpolation, suited for interactivity
     wxINTERPOLATION_FAST,
     // better quality
     // fast interpolation, suited for interactivity
     wxINTERPOLATION_FAST,
     // better quality


@@ -47,6 +50,7 @@ enum wxCompositionMode
     // classic Porter-Duff compositions
     // http://keithp.com/~keithp/porterduff/p253-porter.pdf
 
     // classic Porter-Duff compositions
     // http://keithp.com/~keithp/porterduff/p253-porter.pdf
 

+    wxCOMPOSITION_INVALID = -1, /* indicates invalid/unsupported mode */

     wxCOMPOSITION_CLEAR, /* R = 0 */
     wxCOMPOSITION_SOURCE, /* R = S */
     wxCOMPOSITION_OVER, /* R = S + D*(1 - Sa) */
     wxCOMPOSITION_CLEAR, /* R = 0 */
     wxCOMPOSITION_SOURCE, /* R = S */
     wxCOMPOSITION_OVER, /* R = S + D*(1 - Sa) */


@@ -62,7 +66,7 @@ enum wxCompositionMode
     wxCOMPOSITION_XOR, /* R = S*(1 - Da) + D*(1 - Sa) */
 
     // mathematical compositions
     wxCOMPOSITION_XOR, /* R = S*(1 - Da) + D*(1 - Sa) */
 
     // mathematical compositions

-    wxCOMPOSITION_ADD, /* R = S + D */
+    wxCOMPOSITION_ADD /* R = S + D */

 };
 
 class WXDLLIMPEXP_FWD_CORE wxWindowDC;
 };
 
 class WXDLLIMPEXP_FWD_CORE wxWindowDC;


@@ -103,6 +107,7 @@ class WXDLLIMPEXP_FWD_CORE wxGraphicsBitmap;
 //
 
 class WXDLLIMPEXP_FWD_CORE wxGraphicsObjectRefData;
 //
 
 class WXDLLIMPEXP_FWD_CORE wxGraphicsObjectRefData;

+class WXDLLIMPEXP_FWD_CORE wxGraphicsBitmapData;

 class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrixData;
 class WXDLLIMPEXP_FWD_CORE wxGraphicsPathData;
 
 class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrixData;
 class WXDLLIMPEXP_FWD_CORE wxGraphicsPathData;
 


@@ -163,6 +168,21 @@ class WXDLLIMPEXP_CORE wxGraphicsBitmap : public wxGraphicsObject
 public:
     wxGraphicsBitmap() {}
     virtual ~wxGraphicsBitmap() {}
 public:
     wxGraphicsBitmap() {}
     virtual ~wxGraphicsBitmap() {}

+
+    // Convert bitmap to wxImage: this is more efficient than converting to
+    // wxBitmap first and then to wxImage and also works without X server
+    // connection under Unix that wxBitmap requires.
+#if wxUSE_IMAGE
+    wxImage ConvertToImage() const;
+#endif // wxUSE_IMAGE
+    
+    void* GetNativeBitmap() const;
+
+    const wxGraphicsBitmapData* GetBitmapData() const
+    { return (const wxGraphicsBitmapData*) GetRefData(); }
+    wxGraphicsBitmapData* GetBitmapData()
+    { return (wxGraphicsBitmapData*) GetRefData(); }
+

 private:
     DECLARE_DYNAMIC_CLASS(wxGraphicsBitmap)
 };
 private:
     DECLARE_DYNAMIC_CLASS(wxGraphicsBitmap)
 };


@@ -422,6 +442,13 @@ public:
 
     static wxGraphicsContext* Create( wxWindow* window );
 
 
     static wxGraphicsContext* Create( wxWindow* window );
 

+#if wxUSE_IMAGE
+    // Create a context for drawing onto a wxImage. The image life time must be
+    // greater than that of the context itself as when the context is destroyed
+    // it will copy its contents to the specified image.
+    static wxGraphicsContext* Create(wxImage& image);
+#endif // wxUSE_IMAGE
+

     // create a context that can be used for measuring texts only, no drawing allowed
     static wxGraphicsContext * Create();
 
     // create a context that can be used for measuring texts only, no drawing allowed
     static wxGraphicsContext * Create();
 


@@ -471,11 +498,18 @@ public:
                               wxDouble xc, wxDouble yc, wxDouble radius,
                               const wxGraphicsGradientStops& stops) const;
 
                               wxDouble xc, wxDouble yc, wxDouble radius,
                               const wxGraphicsGradientStops& stops) const;
 

-    // sets the font
+    // creates a font

     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const;
     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const;

+    virtual wxGraphicsFont CreateFont(double sizeInPixels,
+                                      const wxString& facename,
+                                      int flags = wxFONTFLAG_DEFAULT,
+                                      const wxColour& col = *wxBLACK) const;

 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) const;
 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) const;

+#if wxUSE_IMAGE
+    wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image) const;
+#endif // wxUSE_IMAGE

 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) const;
 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateSubBitmap( const wxGraphicsBitmap &bitmap, wxDouble x, wxDouble y, wxDouble w, wxDouble h  ) const;


@@ -484,6 +518,16 @@ public:
     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
         wxDouble tx=0.0, wxDouble ty=0.0) const;
 
     virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
         wxDouble tx=0.0, wxDouble ty=0.0) const;
 

+    wxGraphicsMatrix CreateMatrix( const wxAffineMatrix2DBase& mat ) const
+    {
+        wxMatrix2D mat2D;
+        wxPoint2DDouble tr;
+        mat.Get(&mat2D, &tr);
+
+        return CreateMatrix(mat2D.m_11, mat2D.m_12, mat2D.m_21, mat2D.m_22,
+                            tr.m_x, tr.m_y);
+    }
+

     // push the current state of the context, ie the transformation matrix on a stack
     virtual void PushState() = 0;
 
     // push the current state of the context, ie the transformation matrix on a stack
     virtual void PushState() = 0;
 


@@ -508,10 +552,10 @@ public:
     // sets the antialiasing mode, returns true if it supported
     virtual bool SetAntialiasMode(wxAntialiasMode antialias) = 0;
 
     // sets the antialiasing mode, returns true if it supported
     virtual bool SetAntialiasMode(wxAntialiasMode antialias) = 0;
 

-    // returns the current interpolation mode
+    // returns the current interpolation quality

     virtual wxInterpolationQuality GetInterpolationQuality() const { return m_interpolation; }
     
     virtual wxInterpolationQuality GetInterpolationQuality() const { return m_interpolation; }
     

-    // sets the interpolation mode, returns true if it supported
+    // sets the interpolation quality, returns true if it supported

     virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation) = 0;
     
     // returns the current compositing operator
     virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation) = 0;
     
     // returns the current compositing operator


@@ -521,7 +565,7 @@ public:
     virtual bool SetCompositionMode(wxCompositionMode op) = 0;
 
     // returns the size of the graphics context in device coordinates
     virtual bool SetCompositionMode(wxCompositionMode op) = 0;
 
     // returns the size of the graphics context in device coordinates

-    void GetSize(wxDouble* width, wxDouble* height)
+    void GetSize(wxDouble* width, wxDouble* height) const

     {
         if ( width )
             *width = m_width;
     {
         if ( width )
             *width = m_width;


@@ -769,6 +813,10 @@ public:
 
     virtual wxGraphicsContext * CreateContext( wxWindow* window ) = 0;
 
 
     virtual wxGraphicsContext * CreateContext( wxWindow* window ) = 0;
 

+#if wxUSE_IMAGE
+    virtual wxGraphicsContext * CreateContextFromImage(wxImage& image) = 0;
+#endif // wxUSE_IMAGE
+

     // create a context that can be used for measuring texts only, no drawing allowed
     virtual wxGraphicsContext * CreateMeasuringContext() = 0;
 
     // create a context that can be used for measuring texts only, no drawing allowed
     virtual wxGraphicsContext * CreateMeasuringContext() = 0;
 


@@ -803,9 +851,17 @@ public:
 
     // sets the font
     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) = 0;
 
     // sets the font
     virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) = 0;

+    virtual wxGraphicsFont CreateFont(double sizeInPixels,
+                                      const wxString& facename,
+                                      int flags = wxFONTFLAG_DEFAULT,
+                                      const wxColour& col = *wxBLACK) = 0;

 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) = 0;
 
     // create a native bitmap representation
     virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) = 0;

+#if wxUSE_IMAGE
+    virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image) = 0;
+    virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp) = 0;
+#endif // wxUSE_IMAGE

 
     // create a graphics bitmap from a native bitmap
     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ) = 0;
 
     // create a graphics bitmap from a native bitmap
     virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ) = 0;


@@ -818,6 +874,16 @@ private:
     DECLARE_ABSTRACT_CLASS(wxGraphicsRenderer)
 };
 
     DECLARE_ABSTRACT_CLASS(wxGraphicsRenderer)
 };
 

-#endif
+
+#if wxUSE_IMAGE
+inline
+wxImage wxGraphicsBitmap::ConvertToImage() const
+{
+    wxGraphicsRenderer* renderer = GetRenderer();
+    return renderer ? renderer->CreateImageFromBitmap(*this) : wxNullImage;
+}
+#endif // wxUSE_IMAGE
+
+#endif // wxUSE_GRAPHICS_CONTEXT

 
 #endif // _WX_GRAPHICS_H_
 
 #endif // _WX_GRAPHICS_H_