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GDI+ Plot ActiveX Control

, 5 Sep 2013 LGPL3
GDI+ 2D plot ActiveX control
/**************************************************************************\
*
* Copyright (c) 1998-2000, Microsoft Corp.  All Rights Reserved.
*
* Module Name:
*
*   GdiplusHeaders.h
*
* Abstract:
*
*   GDI+ Native C++ public header file
*
\**************************************************************************/

#ifndef _GDIPLUSHEADERS_H
#define _GDIPLUSHEADERS_H

//--------------------------------------------------------------------------
// Abstract base class for regions
//--------------------------------------------------------------------------

//  Include the class declarations here and have inline class implementation
//  in separate file to avoid circular references.

class Region : public GdiplusBase
{
public:
    friend class Graphics;

    Region();
    Region(IN const RectF& rect);
    Region(IN const Rect& rect);
    Region(IN const GraphicsPath* path);
    Region(IN const BYTE* regionData, IN INT size);
    Region(IN HRGN hRgn);
    static Region* FromHRGN(IN HRGN hRgn);

    ~Region();
    Region* Clone() const;

    Status MakeInfinite();
    Status MakeEmpty();

    // Get the size of the buffer needed for the GetData method
    UINT GetDataSize() const;

    // buffer     - where to put the data
    // bufferSize - how big the buffer is (should be at least as big as GetDataSize())
    // sizeFilled - if not NULL, this is an OUT param that says how many bytes
    //              of data were written to the buffer.
    Status GetData(OUT BYTE* buffer,
                   IN UINT bufferSize,
                   OUT UINT* sizeFilled = NULL) const;

    Status Intersect(IN const Rect& rect);
    Status Intersect(IN const RectF& rect);
    Status Intersect(IN const GraphicsPath* path);
    Status Intersect(IN const Region* region);
    Status Union(IN const Rect& rect);
    Status Union(IN const RectF& rect);
    Status Union(IN const GraphicsPath* path);
    Status Union(IN const Region* region);
    Status Xor(IN const Rect& rect);
    Status Xor(IN const RectF& rect);
    Status Xor(IN const GraphicsPath* path);
    Status Xor(IN const Region* region);
    Status Exclude(IN const Rect& rect);
    Status Exclude(IN const RectF& rect);
    Status Exclude(IN const GraphicsPath* path);
    Status Exclude(IN const Region* region);
    Status Complement(IN const Rect& rect);
    Status Complement(IN const RectF& rect);
    Status Complement(IN const GraphicsPath* path);
    Status Complement(IN const Region* region);
    Status Translate(IN REAL dx,
                     IN REAL dy);
    Status Translate(IN INT dx,
                     IN INT dy);
    Status Transform(IN const Matrix* matrix);

    Status GetBounds(OUT Rect* rect,
                     IN const Graphics* g) const;

    Status GetBounds(OUT RectF* rect,
                     IN const Graphics* g) const;

    HRGN   GetHRGN  (IN const Graphics * g) const;

    BOOL IsEmpty(IN const Graphics *g) const;
    BOOL IsInfinite(IN const Graphics *g) const;

    BOOL IsVisible(IN INT x,
                   IN INT y,
                   IN const Graphics* g = NULL) const
    {
        return IsVisible(Point(x, y), g);
    }

    BOOL IsVisible(IN const Point& point,
                   IN const Graphics* g = NULL) const;

    BOOL IsVisible(IN REAL x,
                   IN REAL y,
                   IN const Graphics* g = NULL) const
    {
        return IsVisible(PointF(x, y), g);
    }

    BOOL IsVisible(IN const PointF& point,
                   IN const Graphics* g = NULL) const;

    BOOL IsVisible(IN INT x,
                   IN INT y,
                   IN INT width,
                   IN INT height,
                   IN const Graphics* g) const
    {
        return IsVisible(Rect(x, y, width, height), g);
    }

    BOOL IsVisible(IN const Rect& rect,
                   IN const Graphics* g = NULL) const;

    BOOL IsVisible(IN REAL x,
                   IN REAL y,
                   IN REAL width,
                   IN REAL height,
                   IN const Graphics* g = NULL) const
    {
        return IsVisible(RectF(x, y, width, height), g);
    }

    BOOL IsVisible(IN const RectF& rect,
                   IN const Graphics* g = NULL) const;

    BOOL Equals(IN const Region* region,
                IN const Graphics* g) const;

    UINT GetRegionScansCount(IN const Matrix* matrix) const;
    Status GetRegionScans(IN const Matrix* matrix,
                          OUT RectF* rects,
                          OUT INT* count) const;
    Status GetRegionScans(IN const Matrix* matrix,
                          OUT Rect*  rects,
                          OUT INT* count) const;
    Status GetLastStatus() const;

protected:

#ifdef DCR_USE_NEW_250932

private:
    Region(const Region &region);
    Region& operator=(const Region &region);
protected:

#else
    Region(const Region &region)
    {
        region; // reference parameter
        SetStatus(NotImplemented);
    }

    Region& operator=(const Region &region)
    {
       region;  // reference parameter
       SetStatus(NotImplemented);
       return *this;
    }
#endif

    Status SetStatus(Status status) const
    {
        if (status != Ok)
            return (lastResult = status);
        else
            return status;
    }

    Region(GpRegion* nativeRegion);

    VOID SetNativeRegion(GpRegion* nativeRegion);

protected:
    GpRegion* nativeRegion;
    mutable Status lastResult;
};


//--------------------------------------------------------------------------
// Abstract base class for FontFamily
//--------------------------------------------------------------------------

class FontFamily : public GdiplusBase
{
public:
    friend class Font;
    friend class Graphics;
    friend class GraphicsPath;
    friend class FontCollection;

    FontFamily();

    FontFamily(
        IN const WCHAR          *name,
        IN const FontCollection *fontCollection = NULL
    );

    ~FontFamily();

    static const FontFamily *GenericSansSerif();
    static const FontFamily *GenericSerif();
    static const FontFamily *GenericMonospace();

    Status GetFamilyName(
        OUT WCHAR        name[LF_FACESIZE],
        IN LANGID        language = 0
    ) const;

//  Copy operator
    FontFamily * Clone() const;

    BOOL    IsAvailable() const
    {
        return (nativeFamily != NULL);
    };

    BOOL    IsStyleAvailable(IN INT style) const;

    UINT16  GetEmHeight     (IN INT style) const;
    UINT16  GetCellAscent   (IN INT style) const;
    UINT16  GetCellDescent  (IN INT style) const;
    UINT16  GetLineSpacing  (IN INT style) const;

    ///////////////////////////////////////////////////////////

    Status GetLastStatus() const;

#ifdef DCR_USE_NEW_250932

private:
    FontFamily(const FontFamily &);
    FontFamily& operator=(const FontFamily &);

#endif

protected:
    Status SetStatus(Status status) const;

    // private constructor for copy
    FontFamily(GpFontFamily * nativeFamily, Status status);

///////////////////////////////////////
//  Data members
protected:

    GpFontFamily    *nativeFamily;
    mutable Status   lastResult;
};

static FontFamily *GenericSansSerifFontFamily = NULL;
static FontFamily *GenericSerifFontFamily     = NULL;
static FontFamily *GenericMonospaceFontFamily = NULL;

static BYTE GenericSansSerifFontFamilyBuffer[sizeof(FontFamily)] = {0};
static BYTE GenericSerifFontFamilyBuffer    [sizeof(FontFamily)] = {0};
static BYTE GenericMonospaceFontFamilyBuffer[sizeof(FontFamily)] = {0};


//--------------------------------------------------------------------------
// Abstract base class for fonts
//--------------------------------------------------------------------------

class Font : public GdiplusBase
{
public:
    friend class Graphics;

    Font(IN HDC hdc);
    Font(IN HDC hdc,
         IN const LOGFONTA* logfont);
    Font(IN HDC hdc,
         IN const LOGFONTW* logfont);
#ifdef DCR_USE_NEW_127084
    Font(IN HDC hdc,
         IN const HFONT hfont);
#endif
    Font(
        IN const FontFamily * family,
        IN REAL         emSize,
        IN INT          style   = FontStyleRegular,
        IN Unit         unit    = UnitPoint
    );

    Font(
        IN const WCHAR *           familyName,
        IN REAL                    emSize,
        IN INT                     style   = FontStyleRegular,
        IN Unit                    unit    = UnitPoint,
        IN const FontCollection *  fontCollection = NULL
    );

    Status GetLogFontA(IN const Graphics* g,
                       OUT  LOGFONTA * logfontA) const;
    Status GetLogFontW(IN const Graphics* g,
                       OUT LOGFONTW * logfontW) const;

    Font* Clone() const;
    ~Font();
    BOOL        IsAvailable()   const;
    INT         GetStyle()      const;
    REAL        GetSize()       const;
    Unit        GetUnit()       const;
    Status      GetLastStatus() const;
    REAL        GetHeight(IN const Graphics *graphics = NULL) const;
#ifdef DCR_USE_NEW_125467
    REAL        GetHeight(IN REAL dpi) const;
#endif

    Status GetFamily(OUT FontFamily *family) const;

#ifdef DCR_USE_NEW_250932

private:
    Font(const Font &);
    Font& operator=(const Font &);

#endif

protected:
    Font(GpFont* font, Status status);
    VOID SetNativeFont(GpFont *Font);
    Status SetStatus(Status status) const;

protected:
    /*
     * handle to native line texture object
     */

    GpFont* nativeFont;
    mutable Status lastResult;
};

//--------------------------------------------------------------------------
// Abstract base classes for font collections
//--------------------------------------------------------------------------

class FontCollection : public GdiplusBase
{
public:
    friend class FontFamily;

    FontCollection();
    virtual ~FontCollection();

    INT GetFamilyCount() const;     // number of enumerable families in the collection

    Status GetFamilies(             // enumerate the fonts in a collection
        IN INT           numSought,
        OUT FontFamily * gpfamilies,
        OUT INT        * numFound
    ) const;

    Status GetLastStatus() const;

#ifdef DCR_USE_NEW_250932

private:
    FontCollection(const FontCollection &);
    FontCollection& operator=(const FontCollection &);

#endif

protected:
    Status SetStatus(Status status) const ;

    GpFontCollection *nativeFontCollection;
    mutable Status    lastResult;
};


class InstalledFontCollection : public FontCollection
{
public:
    InstalledFontCollection();
    ~InstalledFontCollection();

#ifdef DCR_USE_NEW_250932

private:
    InstalledFontCollection(const InstalledFontCollection &);
    InstalledFontCollection& operator=(const InstalledFontCollection &);

#endif

protected:
#ifndef DCR_USE_NEW_235072
    Status InstallFontFile(IN const WCHAR* filename);
    Status UninstallFontFile(IN const WCHAR* filename);
#endif
    Status SetStatus(Status status) const ;
};


class PrivateFontCollection : public FontCollection
{
public:
    PrivateFontCollection();
    ~PrivateFontCollection();

    Status AddFontFile(IN const WCHAR* filename);
    Status AddMemoryFont(IN const VOID* memory,
                         IN INT length);

#ifdef DCR_USE_NEW_250932

private:
    PrivateFontCollection(const PrivateFontCollection &);
    PrivateFontCollection& operator=(const PrivateFontCollection &);

#endif
};


//--------------------------------------------------------------------------
// Abstract base class for bitmap image and metafile
//--------------------------------------------------------------------------

// !!! Note:
//  Include the class declarations here and have the inline class
//  implementation in a separate file.  This is done to resolve a
//  circular dependency since one of the Bitmap methods needs to
//  access the private member nativeGraphics of the Graphics object.

class Image : public GdiplusBase
{
public:
    friend class Brush;
    friend class TextureBrush;
    friend class Graphics;

#ifndef DCR_USE_NEW_140782
    Image(
        IN const WCHAR* filename
    );

    Image(
        IN IStream* stream
    );

    static Image* FromFile(
        IN const WCHAR* filename
    );

    static Image* FromStream(
        IN IStream* stream
    );
#else
    Image(
        IN const WCHAR* filename,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    Image(
        IN IStream* stream,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    static Image* FromFile(
        IN const WCHAR* filename,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    static Image* FromStream(
        IN IStream* stream,
        IN BOOL useEmbeddedColorManagement = FALSE
    );
#endif

    virtual ~Image();
    virtual Image* Clone();

    Status Save(IN const WCHAR* filename,
                IN const CLSID* clsidEncoder,
                IN const EncoderParameters *encoderParams = NULL);
    Status Save(IN IStream* stream,
                IN const CLSID* clsidEncoder,
                IN const EncoderParameters *encoderParams = NULL);
    Status SaveAdd(IN const EncoderParameters* encoderParams);
    Status SaveAdd(IN Image* newImage,
                   IN const EncoderParameters* encoderParams);

    ImageType GetType() const;
    Status GetPhysicalDimension(OUT SizeF* size);
    Status GetBounds(OUT RectF* srcRect,
                     OUT Unit* srcUnit);

    UINT GetWidth();
    UINT GetHeight();
    REAL GetHorizontalResolution();
    REAL GetVerticalResolution();
    UINT GetFlags();
    Status GetRawFormat(OUT GUID *format);
    PixelFormat GetPixelFormat();

    INT GetPaletteSize();
    Status GetPalette(OUT ColorPalette* palette,
                      IN INT size);
    Status SetPalette(IN const ColorPalette* palette);

    Image* GetThumbnailImage(IN UINT thumbWidth,
                             IN UINT thumbHeight,
                             IN GetThumbnailImageAbort callback = NULL,
                             IN VOID* callbackData = NULL);
    UINT GetFrameDimensionsCount();
    Status GetFrameDimensionsList(OUT GUID* dimensionIDs,
                                  IN UINT count);
    UINT GetFrameCount(IN const GUID* dimensionID);
    Status SelectActiveFrame(IN const GUID* dimensionID,
                             IN UINT frameIndex);
    Status RotateFlip(IN RotateFlipType rotateFlipType);
    UINT GetPropertyCount();
    Status GetPropertyIdList(IN UINT numOfProperty,
                             OUT PROPID* list);
    UINT GetPropertyItemSize(IN PROPID propId);
    Status GetPropertyItem(IN PROPID propId,
                           IN UINT propSize,
                           OUT PropertyItem* buffer);
    Status GetPropertySize(OUT UINT* totalBufferSize,
                           OUT UINT* numProperties);
    Status GetAllPropertyItems(IN UINT totalBufferSize,
                               IN UINT numProperties,
                               OUT PropertyItem* allItems);
    Status RemovePropertyItem(IN PROPID propId);
    Status SetPropertyItem(IN const PropertyItem* item);

    UINT  GetEncoderParameterListSize(IN const CLSID* clsidEncoder);
    Status GetEncoderParameterList(IN const CLSID* clsidEncoder,
                                   IN UINT size,
                                   OUT EncoderParameters* buffer);

    // Support for Middle East localization (right-to-left mirroring)
    ImageLayout GetLayout() const;
    Status SetLayout(IN const ImageLayout layout);

    Status GetLastStatus() const;

protected:

    Image() {}

    Image(GpImage *nativeImage, Status status);

    VOID SetNativeImage(GpImage* nativeImage);

    Status SetStatus(Status status) const
    {
        if (status != Ok)
            return (lastResult = status);
        else
            return status;
    }

    GpImage* nativeImage;
    mutable Status lastResult;
    mutable Status loadStatus;

#ifdef DCR_USE_NEW_250932

private:

#else

protected:

#endif

    // Disable copy constructor and assignment operator

    Image(IN const Image& C);
    Image& operator=(IN const Image& C);
};

class Bitmap : public Image
{
public:
    friend class Image;
    friend class CachedBitmap;

    Bitmap(
        IN const WCHAR *filename,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    Bitmap(
        IN IStream *stream,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    static Bitmap* FromFile(
        IN const WCHAR *filename,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    static Bitmap* FromStream(
        IN IStream *stream,
        IN BOOL useEmbeddedColorManagement = FALSE
    );

    Bitmap(IN INT width,
           IN INT height,
           IN INT stride, PixelFormat format,
           IN BYTE* scan0);
    Bitmap(IN INT width,
           IN INT height,
           IN PixelFormat format = PixelFormat32bppARGB);
    Bitmap(IN INT width,
           IN INT height,
           IN  Graphics* target);

    Bitmap* Clone(IN const Rect& rect,
                  IN PixelFormat format);
    Bitmap* Clone(IN INT x,
                  IN INT y,
                  IN INT width,
                  IN INT height,
                  IN PixelFormat format);
    Bitmap* Clone(IN const RectF& rect,
                  IN PixelFormat format);
    Bitmap* Clone(IN REAL x,
                  IN REAL y,
                  IN REAL width,
                  IN REAL height,
                  IN PixelFormat format);

    Status LockBits(IN const Rect& rect,
                    IN UINT flags,
                    IN PixelFormat format,
                    OUT BitmapData* lockedBitmapData);
    Status UnlockBits(IN BitmapData* lockedBitmapData);
    Status GetPixel(IN INT x,
                    IN INT y,
                    OUT Color *color);
    Status SetPixel(IN INT x,
                    IN INT y,
                    IN const Color &color);
    Status SetResolution(IN REAL xdpi,
                         IN REAL ydpi);

    // GDI interop:

    Bitmap(IN IDirectDrawSurface7* surface);
    Bitmap(IN const BITMAPINFO* gdiBitmapInfo,
           IN VOID* gdiBitmapData);
    Bitmap(IN HBITMAP hbm,
           IN HPALETTE hpal);
    Bitmap(IN HICON hicon);
    Bitmap(IN HINSTANCE hInstance,
           IN const WCHAR * bitmapName);
    static Bitmap* FromDirectDrawSurface7(IN IDirectDrawSurface7* surface);
    static Bitmap* FromBITMAPINFO(IN const BITMAPINFO* gdiBitmapInfo,
                                  IN VOID* gdiBitmapData);
    static Bitmap* FromHBITMAP(IN HBITMAP hbm,
                               IN HPALETTE hpal);
    static Bitmap* FromHICON(IN HICON hicon);
    static Bitmap* FromResource(IN HINSTANCE hInstance,
                                IN const WCHAR * bitmapName);

    Status GetHBITMAP(IN const Color& colorBackground,
                      OUT HBITMAP *hbmReturn);
    Status GetHICON(HICON *hicon);

#ifdef DCR_USE_NEW_250932
private:
    Bitmap(const Bitmap &);
    Bitmap& operator=(const Bitmap &);
#endif

protected:
    Bitmap(GpBitmap *nativeBitmap);
};

class CustomLineCap : public GdiplusBase
{
public:
    friend class Pen;

    CustomLineCap(
        IN const GraphicsPath* fillPath,
        IN const GraphicsPath* strokePath,
        IN LineCap baseCap = LineCapFlat,
        IN REAL baseInset = 0
        );
    virtual ~CustomLineCap();

    CustomLineCap* Clone() const;

    Status SetStrokeCap(IN LineCap strokeCap)
    {
        // This changes both start and and caps.

        return SetStrokeCaps(strokeCap, strokeCap);
    }

    Status SetStrokeCaps(IN LineCap startCap,
                         IN LineCap endCap);
    Status GetStrokeCaps(OUT LineCap* startCap,
                         OUT LineCap* endCap) const;
    Status SetStrokeJoin(IN LineJoin lineJoin);
    LineJoin GetStrokeJoin() const;
    Status SetBaseCap(IN LineCap baseCap);
    LineCap GetBaseCap() const;
    Status SetBaseInset(IN REAL inset);
    REAL GetBaseInset() const;
    Status SetWidthScale(IN REAL widthScale);
    REAL GetWidthScale() const;

protected:
    CustomLineCap();

#ifdef DCR_USE_NEW_250932

private:
    CustomLineCap(const CustomLineCap &);
    CustomLineCap& operator=(const CustomLineCap &);
protected:

#else

    CustomLineCap(const CustomLineCap& customLineCap)
    {
        customLineCap;
        SetStatus(NotImplemented);
    }

    CustomLineCap& operator=(const CustomLineCap& customLineCap)
    {
        customLineCap;
        SetStatus(NotImplemented);
        return *this;
    }

#endif

    CustomLineCap(GpCustomLineCap* nativeCap, Status status)
    {
        lastResult = status;
        SetNativeCap(nativeCap);
    }

    VOID SetNativeCap(GpCustomLineCap* nativeCap)
    {
        this->nativeCap = nativeCap;
    }

    Status SetStatus(Status status) const
    {
        if (status != Ok)
            return (lastResult = status);
        else
            return status;
    }

protected:
    GpCustomLineCap* nativeCap;
    mutable Status lastResult;
};

class CachedBitmap : public GdiplusBase
{
    friend Graphics;

public:
    CachedBitmap(IN Bitmap *bitmap,
                 IN Graphics *graphics);
    virtual ~CachedBitmap();

    Status GetLastStatus() const;

#ifdef DCR_USE_NEW_250932

private:
    CachedBitmap(const CachedBitmap &);
    CachedBitmap& operator=(const CachedBitmap &);

#endif

protected:
    GpCachedBitmap *nativeCachedBitmap;
    mutable Status lastResult;
};

#endif  // !_GDIPLUSHEADERS.HPP

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This article, along with any associated source code and files, is licensed under The GNU Lesser General Public License (LGPLv3)

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About the Author

Leslie Zhai
Engineer
China China
An individual human existence should be like a river - small at first, narrowly contained within its banks, and rushing passionately past boulders and over waterfalls. Gradually the river grows wider, the banks recede, the waters flow more quietly, and in the end, without any visible break, they become merged in the sea, and painlessly lose their individual being.

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