Give GTK specific (but public) methods a Gtk prefix

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

diff --git a/include/wx/image.h b/include/wx/image.h
index 8718380516efeaf0f426c0d7729556ee59a928b2..76b9c81c6a478e156c606188d9268da3f87ab8d8 100644 (file)
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -36,10 +36,21 @@
 
 #define wxIMAGE_OPTION_RESOLUTIONUNIT        wxString(_T("ResolutionUnit"))
 
 
 #define wxIMAGE_OPTION_RESOLUTIONUNIT        wxString(_T("ResolutionUnit"))
 

+#define wxIMAGE_OPTION_MAX_WIDTH             wxString(_T("MaxWidth"))
+#define wxIMAGE_OPTION_MAX_HEIGHT            wxString(_T("MaxHeight"))
+

 // constants used with wxIMAGE_OPTION_RESOLUTIONUNIT
 // constants used with wxIMAGE_OPTION_RESOLUTIONUNIT

-enum
+//
+// NB: don't change these values, they correspond to libjpeg constants
+enum wxImageResolution

 {
 {

+    // Resolution not specified
+    wxIMAGE_RESOLUTION_NONE = 0,
+
+    // Resolution specified in inches

     wxIMAGE_RESOLUTION_INCHES = 1,
     wxIMAGE_RESOLUTION_INCHES = 1,

+
+    // Resolution specified in centimeters

     wxIMAGE_RESOLUTION_CM = 2
 };
 
     wxIMAGE_RESOLUTION_CM = 2
 };
 


@@ -61,9 +72,9 @@ const unsigned char wxIMAGE_ALPHA_OPAQUE = 0xff;
 // classes
 //-----------------------------------------------------------------------------
 
 // classes
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxImageHandler;
-class WXDLLEXPORT wxImage;
-class WXDLLEXPORT wxPalette;
+class WXDLLIMPEXP_FWD_CORE wxImageHandler;
+class WXDLLIMPEXP_FWD_CORE wxImage;
+class WXDLLIMPEXP_FWD_CORE wxPalette;

 
 //-----------------------------------------------------------------------------
 // wxVariant support
 
 //-----------------------------------------------------------------------------
 // wxVariant support


@@ -71,18 +82,18 @@ class WXDLLEXPORT wxPalette;
 
 #if wxUSE_VARIANT
 #include "wx/variant.h"
 
 #if wxUSE_VARIANT
 #include "wx/variant.h"

-DECLARE_VARIANT_OBJECT_EXPORTED(wxImage,WXDLLEXPORT)
+DECLARE_VARIANT_OBJECT_EXPORTED(wxImage,WXDLLIMPEXP_CORE)

 #endif
 
 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
 
 #endif
 
 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxImageHandler: public wxObject
+class WXDLLIMPEXP_CORE wxImageHandler: public wxObject

 {
 public:
     wxImageHandler()
 {
 public:
     wxImageHandler()

-        : m_name(wxEmptyString), m_extension(wxEmptyString), m_mime(), m_type(0)
+        : m_name(wxEmptyString), m_extension(wxEmptyString), m_mime(), m_type(wxBITMAP_TYPE_INVALID)

         { }
 
 #if wxUSE_STREAMS
         { }
 
 #if wxUSE_STREAMS


@@ -97,12 +108,18 @@ public:
 
     void SetName(const wxString& name) { m_name = name; }
     void SetExtension(const wxString& ext) { m_extension = ext; }
 
     void SetName(const wxString& name) { m_name = name; }
     void SetExtension(const wxString& ext) { m_extension = ext; }

-    void SetType(long type) { m_type = type; }
+    void SetType(wxBitmapType type) { m_type = type; }

     void SetMimeType(const wxString& type) { m_mime = type; }
     void SetMimeType(const wxString& type) { m_mime = type; }

-    wxString GetName() const { return m_name; }
-    wxString GetExtension() const { return m_extension; }
-    long GetType() const { return m_type; }
-    wxString GetMimeType() const { return m_mime; }
+    const wxString& GetName() const { return m_name; }
+    const wxString& GetExtension() const { return m_extension; }
+    wxBitmapType GetType() const { return m_type; }
+    const wxString& GetMimeType() const { return m_mime; }
+
+#if WXWIN_COMPATIBILITY_2_8
+    wxDEPRECATED(
+        void SetType(long type) { SetType((wxBitmapType)type); }
+    )
+#endif // WXWIN_COMPATIBILITY_2_8

 
 protected:
 #if wxUSE_STREAMS
 
 protected:
 #if wxUSE_STREAMS


@@ -112,10 +129,17 @@ protected:
     bool CallDoCanRead(wxInputStream& stream);
 #endif // wxUSE_STREAMS
 
     bool CallDoCanRead(wxInputStream& stream);
 #endif // wxUSE_STREAMS
 

+    // helper for the derived classes SaveFile() implementations: returns the
+    // values of x- and y-resolution options specified as the image options if
+    // any
+    static wxImageResolution
+    GetResolutionFromOptions(const wxImage& image, int *x, int *y);
+
+

     wxString  m_name;
     wxString  m_extension;
     wxString  m_mime;
     wxString  m_name;
     wxString  m_extension;
     wxString  m_mime;

-    long      m_type;
+    wxBitmapType m_type;

 
 private:
     DECLARE_CLASS(wxImageHandler)
 
 private:
     DECLARE_CLASS(wxImageHandler)


@@ -125,7 +149,7 @@ private:
 // wxImageHistogram
 //-----------------------------------------------------------------------------
 
 // wxImageHistogram
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxImageHistogramEntry
+class WXDLLIMPEXP_CORE wxImageHistogramEntry

 {
 public:
     wxImageHistogramEntry() { index = value = 0; }
 {
 public:
     wxImageHistogramEntry() { index = value = 0; }


@@ -137,7 +161,7 @@ WX_DECLARE_EXPORTED_HASH_MAP(unsigned long, wxImageHistogramEntry,
                              wxIntegerHash, wxIntegerEqual,
                              wxImageHistogramBase);
 
                              wxIntegerHash, wxIntegerEqual,
                              wxImageHistogramBase);
 

-class WXDLLEXPORT wxImageHistogram : public wxImageHistogramBase
+class WXDLLIMPEXP_CORE wxImageHistogram : public wxImageHistogramBase

 {
 public:
     wxImageHistogram() : wxImageHistogramBase(256) { }
 {
 public:
     wxImageHistogram() : wxImageHistogramBase(256) { }


@@ -167,7 +191,7 @@ public:
 // wxImage
 //-----------------------------------------------------------------------------
 
 // wxImage
 //-----------------------------------------------------------------------------
 

-class WXDLLEXPORT wxImage: public wxObject
+class WXDLLIMPEXP_CORE wxImage: public wxObject

 {
 public:
     // red, green and blue are 8 bit unsigned integers in the range of 0..255
 {
 public:
     // red, green and blue are 8 bit unsigned integers in the range of 0..255


@@ -193,25 +217,32 @@ public:
         double value;
     };
 
         double value;
     };
 

-    wxImage(){}
+    wxImage() {}

     wxImage( int width, int height, bool clear = true );
     wxImage( int width, int height, unsigned char* data, bool static_data = false );
     wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
     wxImage( int width, int height, bool clear = true );
     wxImage( int width, int height, unsigned char* data, bool static_data = false );
     wxImage( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );

-    wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+    wxImage( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );

     wxImage( const wxString& name, const wxString& mimetype, int index = -1 );
     wxImage( const wxString& name, const wxString& mimetype, int index = -1 );

-    wxImage( const char** xpmData );
-    wxImage( char** xpmData );
+    wxImage( const char* const* xpmData );

 
 #if wxUSE_STREAMS
 
 #if wxUSE_STREAMS

-    wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+    wxImage( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );

     wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
 #endif // wxUSE_STREAMS
 
     bool Create( int width, int height, bool clear = true );
     bool Create( int width, int height, unsigned char* data, bool static_data = false );
     bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );
     wxImage( wxInputStream& stream, const wxString& mimetype, int index = -1 );
 #endif // wxUSE_STREAMS
 
     bool Create( int width, int height, bool clear = true );
     bool Create( int width, int height, unsigned char* data, bool static_data = false );
     bool Create( int width, int height, unsigned char* data, unsigned char* alpha, bool static_data = false );

-    bool Create( const char** xpmData );
+    bool Create( const char* const* xpmData );
+#ifdef __BORLANDC__
+    // needed for Borland 5.5
+    wxImage( char** xpmData ) { Create(const_cast<const char* const*>(xpmData)); }
+    bool Create( char** xpmData ) { return Create(const_cast<const char* const*>(xpmData)); }
+#endif

     void Destroy();
     void Destroy();

+   
+    // initialize the image data with zeroes
+    void Clear(unsigned char value = 0);

 
     // creates an identical copy of the image (the = operator
     // just raises the ref count)
 
     // creates an identical copy of the image (the = operator
     // just raises the ref count)


@@ -239,9 +270,9 @@ public:
     wxImage ResampleBicubic(int width, int height) const;
 
     // blur the image according to the specified pixel radius
     wxImage ResampleBicubic(int width, int height) const;
 
     // blur the image according to the specified pixel radius

-    wxImage Blur(int radius);
-    wxImage BlurHorizontal(int radius);
-    wxImage BlurVertical(int radius);
+    wxImage Blur(int radius) const;
+    wxImage BlurHorizontal(int radius) const;
+    wxImage BlurVertical(int radius) const;

 
     wxImage ShrinkBy( int xFactor , int yFactor ) const ;
 
 
     wxImage ShrinkBy( int xFactor , int yFactor ) const ;
 


@@ -255,7 +286,7 @@ public:
     // Rotates the image about the given point, 'angle' radians.
     // Returns the rotated image, leaving this image intact.
     wxImage Rotate(double angle, const wxPoint & centre_of_rotation,
     // Rotates the image about the given point, 'angle' radians.
     // Returns the rotated image, leaving this image intact.
     wxImage Rotate(double angle, const wxPoint & centre_of_rotation,

-                   bool interpolating = true, wxPoint * offset_after_rotation = (wxPoint*) NULL) const;
+                   bool interpolating = true, wxPoint * offset_after_rotation = NULL) const;

 
     wxImage Rotate90( bool clockwise = true ) const;
     wxImage Mirror( bool horizontally = true ) const;
 
     wxImage Rotate90( bool clockwise = true ) const;
     wxImage Mirror( bool horizontally = true ) const;


@@ -308,30 +339,42 @@ public:
     bool ConvertColourToAlpha( unsigned char r, unsigned char g, unsigned char b );
 
     static bool CanRead( const wxString& name );
     bool ConvertColourToAlpha( unsigned char r, unsigned char g, unsigned char b );
 
     static bool CanRead( const wxString& name );

-    static int GetImageCount( const wxString& name, long type = wxBITMAP_TYPE_ANY );
-    virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+    static int GetImageCount( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY );
+    virtual bool LoadFile( const wxString& name, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );

     virtual bool LoadFile( const wxString& name, const wxString& mimetype, int index = -1 );
 
 #if wxUSE_STREAMS
     static bool CanRead( wxInputStream& stream );
     virtual bool LoadFile( const wxString& name, const wxString& mimetype, int index = -1 );
 
 #if wxUSE_STREAMS
     static bool CanRead( wxInputStream& stream );

-    static int GetImageCount( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
-    virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY, int index = -1 );
+    static int GetImageCount( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY );
+    virtual bool LoadFile( wxInputStream& stream, wxBitmapType type = wxBITMAP_TYPE_ANY, int index = -1 );

     virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );
 #endif
 
     virtual bool SaveFile( const wxString& name ) const;
     virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype, int index = -1 );
 #endif
 
     virtual bool SaveFile( const wxString& name ) const;

-    virtual bool SaveFile( const wxString& name, int type ) const;
+    virtual bool SaveFile( const wxString& name, wxBitmapType type ) const;

     virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
 
 #if wxUSE_STREAMS
     virtual bool SaveFile( const wxString& name, const wxString& mimetype ) const;
 
 #if wxUSE_STREAMS

-    virtual bool SaveFile( wxOutputStream& stream, int type ) const;
+    virtual bool SaveFile( wxOutputStream& stream, wxBitmapType type ) const;

     virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
 #endif
 
     virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype ) const;
 #endif
 

-    bool Ok() const;
+    bool Ok() const { return IsOk(); }
+    bool IsOk() const;

     int GetWidth() const;
     int GetHeight() const;
 
     int GetWidth() const;
     int GetHeight() const;
 

+    wxSize GetSize() const
+        { return wxSize(GetWidth(), GetHeight()); }
+
+    // Gets the type of image found by LoadFile or specified with SaveFile
+    wxBitmapType GetType() const;
+
+    // Set the image type, this is normally only called if the image is being
+    // created from data in the given format but not using LoadFile() (e.g.
+    // wxGIFDecoder uses this)
+    void SetType(wxBitmapType type);
+

     // these functions provide fastest access to wxImage data but should be
     // used carefully as no checks are done
     unsigned char *GetData() const;
     // these functions provide fastest access to wxImage data but should be
     // used carefully as no checks are done
     unsigned char *GetData() const;


@@ -387,18 +430,14 @@ public:
     // -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees
     void RotateHue(double angle);
 
     // -1.0..1.0 where -1.0 is -360 degrees and 1.0 is 360 degrees
     void RotateHue(double angle);
 

-    bool operator == (const wxImage& image) const
-        { return m_refData == image.m_refData; }
-    bool operator != (const wxImage& image) const
-        { return m_refData != image.m_refData; }
-

     static wxList& GetHandlers() { return sm_handlers; }
     static void AddHandler( wxImageHandler *handler );
     static void InsertHandler( wxImageHandler *handler );
     static bool RemoveHandler( const wxString& name );
     static wxImageHandler *FindHandler( const wxString& name );
     static wxList& GetHandlers() { return sm_handlers; }
     static void AddHandler( wxImageHandler *handler );
     static void InsertHandler( wxImageHandler *handler );
     static bool RemoveHandler( const wxString& name );
     static wxImageHandler *FindHandler( const wxString& name );

-    static wxImageHandler *FindHandler( const wxString& extension, long imageType );
-    static wxImageHandler *FindHandler( long imageType );
+    static wxImageHandler *FindHandler( const wxString& extension, wxBitmapType imageType );
+    static wxImageHandler *FindHandler( wxBitmapType imageType );
+

     static wxImageHandler *FindHandlerMime( const wxString& mimetype );
 
     static wxString GetImageExtWildcard();
     static wxImageHandler *FindHandlerMime( const wxString& mimetype );
 
     static wxString GetImageExtWildcard();


@@ -409,6 +448,65 @@ public:
     static HSVValue RGBtoHSV(const RGBValue& rgb);
     static RGBValue HSVtoRGB(const HSVValue& hsv);
 
     static HSVValue RGBtoHSV(const RGBValue& rgb);
     static RGBValue HSVtoRGB(const HSVValue& hsv);
 

+#if WXWIN_COMPATIBILITY_2_8
+    wxDEPRECATED_CONSTRUCTOR(
+        wxImage(const wxString& name, long type, int index = -1)
+        {
+            LoadFile(name, (wxBitmapType)type, index);
+        }
+    )
+
+#if wxUSE_STREAMS
+    wxDEPRECATED_CONSTRUCTOR(
+        wxImage(wxInputStream& stream, long type, int index = -1)
+        {
+            LoadFile(stream, (wxBitmapType)type, index);
+        }
+    )
+
+    wxDEPRECATED(
+        bool LoadFile(wxInputStream& stream, long type, int index = -1)
+        {
+            return LoadFile(stream, (wxBitmapType)type, index);
+        }
+    )
+
+    wxDEPRECATED(
+        bool SaveFile(wxOutputStream& stream, long type) const
+        {
+            return SaveFile(stream, (wxBitmapType)type);
+        }
+    )
+#endif // wxUSE_STREAMS
+
+    wxDEPRECATED(
+        bool LoadFile(const wxString& name, long type, int index = -1)
+        {
+            return LoadFile(name, (wxBitmapType)type, index);
+        }
+    )
+
+    wxDEPRECATED(
+        bool SaveFile(const wxString& name, long type) const
+        {
+            return SaveFile(name, (wxBitmapType)type);
+        }
+    )
+
+    wxDEPRECATED(
+        static wxImageHandler *FindHandler(const wxString& ext, long type)
+        {
+            return FindHandler(ext, (wxBitmapType)type);
+        }
+    )
+
+    wxDEPRECATED(
+        static wxImageHandler *FindHandler(long imageType)
+        {
+            return FindHandler((wxBitmapType)imageType);
+        }
+    )
+#endif // WXWIN_COMPATIBILITY_2_8

 
 protected:
     static wxList   sm_handlers;
 
 protected:
     static wxList   sm_handlers;


@@ -423,15 +521,25 @@ protected:
     virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;
 
 private:
     virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;
 
 private:

-    friend class WXDLLEXPORT wxImageHandler;
+    friend class WXDLLIMPEXP_FWD_CORE wxImageHandler;
+
+#if wxUSE_STREAMS
+    // read the image from the specified stream updating image type if
+    // successful
+    bool DoLoad(wxImageHandler& handler, wxInputStream& stream, int index);
+
+    // write the image to the specified stream and also update the image type
+    // if successful
+    bool DoSave(wxImageHandler& handler, wxOutputStream& stream) const;
+#endif // wxUSE_STREAMS

 
     DECLARE_DYNAMIC_CLASS(wxImage)
 };
 
 
 
     DECLARE_DYNAMIC_CLASS(wxImage)
 };
 
 

-extern void WXDLLEXPORT wxInitAllImageHandlers();
+extern void WXDLLIMPEXP_CORE wxInitAllImageHandlers();

 
 

-extern WXDLLEXPORT_DATA(wxImage)    wxNullImage;
+extern WXDLLIMPEXP_DATA_CORE(wxImage)    wxNullImage;

 
 //-----------------------------------------------------------------------------
 // wxImage handlers
 
 //-----------------------------------------------------------------------------
 // wxImage handlers


@@ -442,6 +550,7 @@ extern WXDLLEXPORT_DATA(wxImage)    wxNullImage;
 #include "wx/imaggif.h"
 #include "wx/imagpcx.h"
 #include "wx/imagjpeg.h"
 #include "wx/imaggif.h"
 #include "wx/imagpcx.h"
 #include "wx/imagjpeg.h"

+#include "wx/imagtga.h"

 #include "wx/imagtiff.h"
 #include "wx/imagpnm.h"
 #include "wx/imagxpm.h"
 #include "wx/imagtiff.h"
 #include "wx/imagpnm.h"
 #include "wx/imagxpm.h"