avoid infinite recursion for richtooltops, (hopefully) fixes #15070

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

diff --git a/interface/wx/graphics.h b/interface/wx/graphics.h
index 323d935cea43b606f1709cdc03ecacdd3d04e9c8..ac46f91a3135155f0cb71b76f9f4b0a3a8aaded1 100644 (file)
--- a/interface/wx/graphics.h
+++ b/interface/wx/graphics.h
@@ -3,7 +3,7 @@
 // Purpose:     interface of various wxGraphics* classes
 // Author:      wxWidgets team
 // RCS-ID:      $Id$
 // Purpose:     interface of various wxGraphics* classes
 // Author:      wxWidgets team
 // RCS-ID:      $Id$

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /**
 /////////////////////////////////////////////////////////////////////////////
 
 /**


@@ -116,12 +116,12 @@ public:
         @return @true if the point is within the path.
     */
     bool Contains(const wxPoint2DDouble& c,
         @return @true if the point is within the path.
     */
     bool Contains(const wxPoint2DDouble& c,

-                  int fillStyle = wxODDEVEN_RULE) const;
+                  wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;

     /**
         @return @true if the point is within the path.
     */
     virtual bool Contains(wxDouble x, wxDouble y,
     /**
         @return @true if the point is within the path.
     */
     virtual bool Contains(wxDouble x, wxDouble y,

-                          int fillStyle = wxODDEVEN_RULE) const;
+                          wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const;

 
     /**
         Gets the bounding box enclosing all points (possibly including control
 
     /**
         Gets the bounding box enclosing all points (possibly including control


@@ -201,7 +201,7 @@ public:
 };
 
 /**
 };
 
 /**

-    Anti-aliasing modes used by wxGraphicsContext::SetAntialisingMode
+    Anti-aliasing modes used by wxGraphicsContext::SetAntialiasMode().

 */
 enum wxAntialiasMode
 {
 */
 enum wxAntialiasMode
 {


@@ -212,10 +212,27 @@ enum wxAntialiasMode
     wxANTIALIAS_DEFAULT,
 };
 
     wxANTIALIAS_DEFAULT,
 };
 

+/**
+    Interpolation quality used by wxGraphicsContext::SetInterpolationQuality().
+ */
+enum wxInterpolationQuality
+{
+    /** default interpolation, based on type of context, in general medium quality */
+    wxINTERPOLATION_DEFAULT,
+    /** no interpolation */
+    wxINTERPOLATION_NONE, 
+    /** fast interpolation, suited for interactivity */
+    wxINTERPOLATION_FAST,
+    /** better quality */
+    wxINTERPOLATION_GOOD,
+    /** best quality, not suited for interactivity */
+    wxINTERPOLATION_BEST
+};
+

 /**
     Compositing is done using Porter-Duff compositions
     (see http://keithp.com/~keithp/porterduff/p253-porter.pdf) with
 /**
     Compositing is done using Porter-Duff compositions
     (see http://keithp.com/~keithp/porterduff/p253-porter.pdf) with

-    wxGraphicsContext::SetCompositionMode
+    wxGraphicsContext::SetCompositionMode().

 
     The description give a short equation on how the values of a resulting
     pixel are calculated.
 
     The description give a short equation on how the values of a resulting
     pixel are calculated.


@@ -224,6 +241,14 @@ enum wxAntialiasMode
 */
 enum wxCompositionMode
 {
 */
 enum wxCompositionMode
 {

+    /**
+        Indicates invalid or unsupported composition mode.
+
+        This value can't be passed to wxGraphicsContext::SetCompositionMode().
+
+        @since 2.9.2
+     */
+    wxCOMPOSITION_INVALID = -1,

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


@@ -237,9 +262,49 @@ enum wxCompositionMode
     wxCOMPOSITION_DEST_OUT, /**< @e R = @e D*(1 - @e Sa) */
     wxCOMPOSITION_DEST_ATOP, /**< @e R = @e S*(1 - @e Da) + @e D*@e Sa */
     wxCOMPOSITION_XOR, /**< @e R = @e S*(1 - @e Da) + @e D*(1 - @e Sa) */
     wxCOMPOSITION_DEST_OUT, /**< @e R = @e D*(1 - @e Sa) */
     wxCOMPOSITION_DEST_ATOP, /**< @e R = @e S*(1 - @e Da) + @e D*@e Sa */
     wxCOMPOSITION_XOR, /**< @e R = @e S*(1 - @e Da) + @e D*(1 - @e Sa) */

-    wxCOMPOSITION_ADD, /**< @e R = @e S + @e D */
+    wxCOMPOSITION_ADD  /**< @e R = @e S + @e D */

 };
 
 };
 

+/**
+    Represents a bitmap.
+
+    The objects of this class are not created directly but only via
+    wxGraphicsContext or wxGraphicsRenderer CreateBitmap(),
+    CreateBitmapFromImage() or CreateSubBitmap() methods. They can subsequently
+    be used with wxGraphicsContext::DrawBitmap(). The only other operation is
+    testing for the bitmap validity which can be performed using IsNull()
+    method inherited from the base class.
+ */
+class wxGraphicsBitmap : public wxGraphicsObject
+{
+public:
+    /**
+        Default constructor creates an invalid bitmap.
+     */
+    wxGraphicsBitmap() {}
+
+    /**
+        Return the contents of this bitmap as wxImage.
+
+        Using this method is more efficient than converting wxGraphicsBitmap to
+        wxBitmap first and then to wxImage and can be useful if, for example,
+        you want to save wxGraphicsBitmap as a disk file in a format not
+        directly supported by wxBitmap.
+
+        Invalid image is returned if the bitmap is invalid.
+
+        @since 2.9.3
+     */
+    wxImage ConvertToImage() const;
+
+    /**
+        Return the pointer to the native bitmap data. (CGImageRef for Core Graphics, 
+        cairo_surface_t for Cairo, Bitmap* for GDI+.)
+
+        @since 2.9.4
+     */
+    void* GetNativeBitmap() const;
+};

 
 /**
     @class wxGraphicsContext
 
 /**
     @class wxGraphicsContext


@@ -299,14 +364,14 @@ public:
 
         @see wxGraphicsRenderer::CreateContext()
     */
 
         @see wxGraphicsRenderer::CreateContext()
     */

-    static wxGraphicsContext* Create(const wxWindowDC& dc);
+    static wxGraphicsContext* Create(const wxWindowDC& windowDC);

 
     /**
         Creates a wxGraphicsContext from a wxMemoryDC
 
         @see wxGraphicsRenderer::CreateContext()
     */
 
     /**
         Creates a wxGraphicsContext from a wxMemoryDC
 
         @see wxGraphicsRenderer::CreateContext()
     */

-    static wxGraphicsContext* Create(const wxMemoryDC& dc);
+    static wxGraphicsContext* Create(const wxMemoryDC& memoryDC);

 
     /**
         Creates a wxGraphicsContext from a wxPrinterDC. Under GTK+, this will
 
     /**
         Creates a wxGraphicsContext from a wxPrinterDC. Under GTK+, this will


@@ -315,7 +380,30 @@ public:
 
         @see wxGraphicsRenderer::CreateContext(), @ref overview_unixprinting
     */
 
         @see wxGraphicsRenderer::CreateContext(), @ref overview_unixprinting
     */

-    static wxGraphicsContext* Create(const wxPrinterDC& dc);
+    static wxGraphicsContext* Create(const wxPrinterDC& printerDC);
+
+    /**
+        Creates a wxGraphicsContext from a wxEnhMetaFileDC.
+
+        This function, as wxEnhMetaFileDC class itself, is only available only
+        under MSW.
+
+        @see wxGraphicsRenderer::CreateContext()
+    */
+    static wxGraphicsContext* Create(const wxEnhMetaFileDC& metaFileDC);
+
+    /**
+        Creates a wxGraphicsContext associated with a wxImage.
+
+        The image specifies the size of the context as well as whether alpha is
+        supported (if wxImage::HasAlpha()) or not and the initial contents of
+        the context. The @a image object must have a life time greater than
+        that of the new context as the context copies its contents back to the
+        image when it is destroyed.
+
+        @since 2.9.3
+     */
+    static wxGraphicsContext* Create(wxImage& image);

 
     /**
         Clips drawings to the specified region.
 
     /**
         Clips drawings to the specified region.


@@ -333,6 +421,35 @@ public:
     */
     virtual void ConcatTransform(const wxGraphicsMatrix& matrix) = 0;
 
     */
     virtual void ConcatTransform(const wxGraphicsMatrix& matrix) = 0;
 

+    /**
+        Creates wxGraphicsBitmap from an existing wxBitmap.
+
+        Returns an invalid wxNullGraphicsBitmap on failure.
+     */
+    virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) = 0;
+
+    /**
+        Creates wxGraphicsBitmap from an existing wxImage.
+
+        This method is more efficient than converting wxImage to wxBitmap first
+        and then calling CreateBitmap() but otherwise has the same effect.
+
+        Returns an invalid wxNullGraphicsBitmap on failure.
+
+        @since 2.9.3
+     */
+    virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image);
+
+    /**
+        Extracts a sub-bitmap from an existing bitmap.
+
+        Currently this function is implemented in the native MSW and OS X
+        versions but not when using Cairo.
+     */
+    virtual wxGraphicsBitmap CreateSubBitmap(const wxGraphicsBitmap& bitmap,
+                                             wxDouble x, wxDouble y,
+                                             wxDouble w, wxDouble h) = 0;
+

     /**
         Creates a native brush from a wxBrush.
     */
     /**
         Creates a native brush from a wxBrush.
     */


@@ -344,6 +461,19 @@ public:
     virtual wxGraphicsFont CreateFont(const wxFont& font,
                                       const wxColour& col = *wxBLACK) const;
 
     virtual wxGraphicsFont CreateFont(const wxFont& font,
                                       const wxColour& col = *wxBLACK) const;
 

+    /**
+        Creates a font object with the specified attributes.
+
+        The use of overload taking wxFont is preferred, see
+        wxGraphicsRenderer::CreateFont() for more details.
+
+        @since 2.9.3
+     */
+    virtual wxGraphicsFont CreateFont(double sizeInPixels,
+                                      const wxString& facename,
+                                      int flags = wxFONTFLAG_DEFAULT,
+                                      const wxColour& col = *wxBLACK) const;
+

     /**
         Creates a wxGraphicsContext from a native context. This native context
         must be a CGContextRef for Core Graphics, a Graphics pointer for
     /**
         Creates a wxGraphicsContext from a native context. This native context
         must be a CGContextRef for Core Graphics, a Graphics pointer for


@@ -390,6 +520,14 @@ public:
                                           wxDouble tx = 0.0,
                                           wxDouble ty = 0.0) const;
 
                                           wxDouble tx = 0.0,
                                           wxDouble ty = 0.0) const;
 

+    /**
+        Creates a native affine transformation matrix from the passed
+        generic one.
+
+        @since 2.9.4
+    */
+    wxGraphicsMatrix CreateMatrix(const wxAffineMatrix2DBase& mat) const;
+

     /**
         Creates a native graphics path which is initially empty.
     */
     /**
         Creates a native graphics path which is initially empty.
     */


@@ -403,7 +541,7 @@ public:
     /**
         Creates a native brush with a radial gradient.
 
     /**
         Creates a native brush with a radial gradient.
 

-        The brush originats at (@a xo, @a yc) and ends on a circle around
+        The brush originates at (@a xo, @a yc) and ends on a circle around

         (@a xc, @a yc) with the given @a radius.
 
         The gradient may be specified either by its start and end colours @a
         (@a xc, @a yc) with the given @a radius.
 
         The gradient may be specified either by its start and end colours @a


@@ -430,8 +568,14 @@ public:
         Draws the bitmap. In case of a mono bitmap, this is treated as a mask
         and the current brushed is used for filling.
     */
         Draws the bitmap. In case of a mono bitmap, this is treated as a mask
         and the current brushed is used for filling.
     */

-    virtual void DrawBitmap(const wxBitmap& bmp, wxDouble x, wxDouble y,
+    //@{
+    virtual void DrawBitmap(const wxGraphicsBitmap& bmp,
+                            wxDouble x, wxDouble y,
+                            wxDouble w, wxDouble h ) = 0;
+    virtual void DrawBitmap(const wxBitmap& bmp,
+                            wxDouble x, wxDouble y,

                             wxDouble w, wxDouble h) = 0;
                             wxDouble w, wxDouble h) = 0;

+    //@}

 
     /**
         Draws an ellipse.
 
     /**
         Draws an ellipse.


@@ -620,8 +764,10 @@ public:
     virtual void StrokeLines(size_t n, const wxPoint2DDouble* beginPoints,
                              const wxPoint2DDouble* endPoints);
     /**
     virtual void StrokeLines(size_t n, const wxPoint2DDouble* beginPoints,
                              const wxPoint2DDouble* endPoints);
     /**

-        Stroke disconnected lines from begin to end points, fastest method
-        available for this purpose.
+        Stroke lines connecting all the points.
+
+        Unlike the other overload of this function, this method draws a single
+        polyline and not a number of disconnected lines.

     */
     virtual void StrokeLines(size_t n, const wxPoint2DDouble* points);
 
     */
     virtual void StrokeLines(size_t n, const wxPoint2DDouble* points);
 


@@ -656,6 +802,18 @@ public:
     */
     virtual wxAntialiasMode GetAntialiasMode() const ;
 
     */
     virtual wxAntialiasMode GetAntialiasMode() const ;
 

+    /**
+        Sets the interpolation quality, returns true if it is supported.
+
+        Not implemented in Cairo backend currently.
+     */
+    virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation) = 0;
+
+    /**
+        Returns the current interpolation quality.
+     */
+    virtual wxInterpolationQuality GetInterpolationQuality() const;
+

     /**
         Sets the compositing operator, returns true if it supported
     */
     /**
         Sets the compositing operator, returns true if it supported
     */


@@ -666,6 +824,28 @@ public:
     */
     virtual wxCompositionMode GetCompositionMode() const;
 
     */
     virtual wxCompositionMode GetCompositionMode() const;
 

+
+    /**
+       Push the current state of the context's transformation matrix on a
+       stack.
+
+       @see wxGraphicsContext::PopState
+    */
+    virtual void PushState() = 0;
+
+    /**
+       Pops a stored state from the stack and sets the current transformation
+       matrix to that state.
+
+       @see wxGraphicsContext::PopState
+    */
+    virtual void PopState() = 0;
+
+
+    virtual void EnableOffset(bool enable = true);
+    void DisableOffset();
+    bool OffsetEnabled();
+

 };
 
 /**
 };
 
 /**


@@ -805,6 +985,41 @@ public:
 class wxGraphicsRenderer : public wxObject
 {
 public:
 class wxGraphicsRenderer : public wxObject
 {
 public:

+    /**
+        Creates wxGraphicsBitmap from an existing wxBitmap.
+
+        Returns an invalid wxNullGraphicsBitmap on failure.
+     */
+    virtual wxGraphicsBitmap CreateBitmap( const wxBitmap &bitmap ) = 0;
+
+    /**
+        Creates wxGraphicsBitmap from an existing wxImage.
+
+        This method is more efficient than converting wxImage to wxBitmap first
+        and then calling CreateBitmap() but otherwise has the same effect.
+
+        Returns an invalid wxNullGraphicsBitmap on failure.
+
+        @since 2.9.3
+     */
+    virtual wxGraphicsBitmap CreateBitmapFromImage(const wxImage& image) = 0;
+
+    /**
+       Creates a wxImage from a wxGraphicsBitmap.
+
+       This method is used by the more convenient wxGraphicsBitmap::ConvertToImage.
+    */
+    virtual wxImage CreateImageFromBitmap(const wxGraphicsBitmap& bmp) = 0;
+
+    /**
+        Creates wxGraphicsBitmap from a native bitmap handle.
+
+        @a bitmap meaning is platform-dependent. Currently it's a GDI+ @c
+        Bitmap pointer under MSW, @c CGImage pointer under OS X or a @c
+        cairo_surface_t pointer when using Cairo under any platform.
+     */
+    virtual wxGraphicsBitmap CreateBitmapFromNativeBitmap( void* bitmap ) = 0;
+

     /**
         Creates a wxGraphicsContext from a wxWindow.
     */
     /**
         Creates a wxGraphicsContext from a wxWindow.
     */


@@ -813,17 +1028,35 @@ public:
     /**
         Creates a wxGraphicsContext from a wxWindowDC
     */
     /**
         Creates a wxGraphicsContext from a wxWindowDC
     */

-    virtual wxGraphicsContext* CreateContext(const wxWindowDC& dc) = 0 ;
+    virtual wxGraphicsContext* CreateContext(const wxWindowDC& windowDC) = 0 ;

 
     /**
         Creates a wxGraphicsContext from a wxMemoryDC
     */
 
     /**
         Creates a wxGraphicsContext from a wxMemoryDC
     */

-    virtual wxGraphicsContext* CreateContext(const wxMemoryDC& dc) = 0 ;
+    virtual wxGraphicsContext* CreateContext(const wxMemoryDC& memoryDC) = 0 ;

 
     /**
         Creates a wxGraphicsContext from a wxPrinterDC
     */
 
     /**
         Creates a wxGraphicsContext from a wxPrinterDC
     */

-    virtual wxGraphicsContext* CreateContext(const wxPrinterDC& dc) = 0 ;
+    virtual wxGraphicsContext* CreateContext(const wxPrinterDC& printerDC) = 0 ;
+
+    /**
+        Creates a wxGraphicsContext from a wxEnhMetaFileDC.
+
+        This function, as wxEnhMetaFileDC class itself, is only available only
+        under MSW.
+    */
+    virtual wxGraphicsContext* CreateContext(const wxEnhMetaFileDC& metaFileDC) = 0;
+
+    /**
+        Creates a wxGraphicsContext associated with a wxImage.
+
+        This function is used by wxContext::CreateFromImage() and is not
+        normally called directly.
+
+        @since 2.9.3
+     */
+    wxGraphicsContext* CreateContextFromImage(wxImage& image);

 
     /**
         Creates a native brush from a wxBrush.
 
     /**
         Creates a native brush from a wxBrush.


@@ -854,6 +1087,35 @@ public:
     virtual wxGraphicsFont CreateFont(const wxFont& font,
                                       const wxColour& col = *wxBLACK) = 0;
 
     virtual wxGraphicsFont CreateFont(const wxFont& font,
                                       const wxColour& col = *wxBLACK) = 0;
 

+    /**
+        Creates a graphics font with the given characteristics.
+
+        If possible, the CreateFont() overload taking wxFont should be used
+        instead. The main advantage of this overload is that it can be used
+        without X server connection under Unix when using Cairo.
+
+        @param sizeInPixels
+            Height of the font in user space units, i.e. normally pixels.
+            Notice that this is different from the overload taking wxFont as
+            wxFont size is specified in points.
+        @param facename
+            The name of the font. The same font name might not be available
+            under all platforms so the font name can also be empty to use the
+            default platform font.
+        @param flags
+            Combination of wxFontFlag enum elements. Currently only
+            @c wxFONTFLAG_ITALIC and @c wxFONTFLAG_BOLD are supported. By
+            default the normal font version is used.
+        @param col
+            The font colour, black by default.
+
+        @since 2.9.3
+     */
+    virtual wxGraphicsFont CreateFont(double sizeInPixels,
+                                      const wxString& facename,
+                                      int flags = wxFONTFLAG_DEFAULT,
+                                      const wxColour& col = *wxBLACK) = 0;
+

 
     /**
         Creates a native brush with a linear gradient.
 
     /**
         Creates a native brush with a linear gradient.


@@ -897,12 +1159,24 @@ public:
                                                       wxDouble radius,
                                                       const wxGraphicsGradientStops& stops) = 0;
 
                                                       wxDouble radius,
                                                       const wxGraphicsGradientStops& stops) = 0;
 

+    /**
+        Extracts a sub-bitmap from an existing bitmap.
+
+        Currently this function is implemented in the native MSW and OS X
+        versions but not when using Cairo.
+     */
+    virtual wxGraphicsBitmap CreateSubBitmap(const wxGraphicsBitmap& bitmap,
+                                             wxDouble x, wxDouble y,
+                                             wxDouble w, wxDouble h) = 0;
+

     /**
         Returns the default renderer on this platform. On OS X this is the Core
         Graphics (a.k.a. Quartz 2D) renderer, on MSW the GDIPlus renderer, and
         on GTK we currently default to the cairo renderer.
     */
     static wxGraphicsRenderer* GetDefaultRenderer();
     /**
         Returns the default renderer on this platform. On OS X this is the Core
         Graphics (a.k.a. Quartz 2D) renderer, on MSW the GDIPlus renderer, and
         on GTK we currently default to the cairo renderer.
     */
     static wxGraphicsRenderer* GetDefaultRenderer();

+    static wxGraphicsRenderer* GetCairoRenderer();
+

 };
 
 
 };
 
 


@@ -1025,7 +1299,10 @@ public:
     virtual bool IsIdentity() const;
 
     /**
     virtual bool IsIdentity() const;
 
     /**

-        Rotates this matrix (in radians).
+        Rotates this matrix clockwise (in radians).
+
+        @param radians
+            Rotation angle in radians, clockwise.

     */
     virtual void Rotate(wxDouble angle);
 
     */
     virtual void Rotate(wxDouble angle);
 


@@ -1058,3 +1335,10 @@ public:
     virtual void Translate(wxDouble dx, wxDouble dy);
 };
 
     virtual void Translate(wxDouble dx, wxDouble dy);
 };
 

+
+const wxGraphicsPen     wxNullGraphicsPen;
+const wxGraphicsBrush   wxNullGraphicsBrush;
+const wxGraphicsFont    wxNullGraphicsFont;
+const wxGraphicsBitmap  wxNullGraphicsBitmap;
+const wxGraphicsMatrix  wxNullGraphicsMatrix;
+const wxGraphicsPath    wxNullGraphicsPath;