gdiplusbrush.h

一个很强悍的爬行蜘蛛,能用于很多网页,而且速度也快

/**************************************************************************\
* 
* Copyright (c) 1998-2000, Microsoft Corp.  All Rights Reserved.
*
* Module Name:
*
*   GdiplusBrush.h
*
* Abstract:
*
*   Brush API related declarations
*
\**************************************************************************/

#ifndef _GDIPLUSBRUSH_H
#define _GDIPLUSBRUSH_H

//--------------------------------------------------------------------------
// Abstract base class for various brush types
//--------------------------------------------------------------------------

class GraphicsPath;

class Brush : public GdiplusBase
{
public:
    friend class Pen;
    friend class Graphics;

    virtual ~Brush()
    {
        DllExports::GdipDeleteBrush(nativeBrush);
    }

    virtual Brush* Clone() const
    {
        GpBrush *brush = NULL;

        SetStatus(DllExports::GdipCloneBrush(nativeBrush, &brush));

        Brush *newBrush = new Brush(brush, lastResult);
        
        if (newBrush == NULL) 
        {
            DllExports::GdipDeleteBrush(brush);
        }

        return newBrush;
    }

    BrushType GetType() const
    {
        BrushType type = static_cast<BrushType>(-1);

        SetStatus(DllExports::GdipGetBrushType(nativeBrush, &type));

        return type;
    }

    Status GetLastStatus() const
    {
        Status lastStatus = lastResult;
        lastResult = Ok;

        return lastStatus;
    }

protected:

    Brush()
    {
        SetStatus(NotImplemented);
    }

#ifdef DCR_USE_NEW_250932

private:
    Brush(const Brush& brush);
    Brush& operator=(const Brush& brush);
protected:

#else

    Brush(const Brush& brush)
    {
        brush;
        SetStatus(NotImplemented);
    }

    Brush& operator=(const Brush& brush)
    {
        brush;
        SetStatus(NotImplemented);
        return *this;
    }

#endif

    Brush(GpBrush* nativeBrush, Status status)
    {
        lastResult = status;
        SetNativeBrush(nativeBrush);
    }

    VOID SetNativeBrush(GpBrush* nativeBrush)
    {
        this->nativeBrush = nativeBrush;
    }

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

    GpBrush* nativeBrush;
    mutable Status lastResult;
};

//--------------------------------------------------------------------------
// Represent solid fill brush object
//--------------------------------------------------------------------------

class SolidBrush : public Brush
{
public:
    friend class Pen;

    SolidBrush(IN const Color& color)
    {
        GpSolidFill *brush = NULL;

        lastResult = DllExports::GdipCreateSolidFill(color.GetValue(), &brush);

        SetNativeBrush(brush);
    }

    Status GetColor(OUT Color* color) const
    {
        ARGB argb;

        if (color == NULL) 
        {
            return SetStatus(InvalidParameter);
        }

        SetStatus(DllExports::GdipGetSolidFillColor((GpSolidFill*)nativeBrush,
                                                    &argb));

        *color = Color(argb);

        return lastResult;
    }

    Status SetColor(IN const Color& color)
    {
        return SetStatus(DllExports::GdipSetSolidFillColor((GpSolidFill*)nativeBrush, 
                                                           color.GetValue()));
    }

#ifdef DCR_USE_NEW_250932

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

#endif

protected:

    SolidBrush()
    {
    }
};

class TextureBrush : public Brush
{
public:
    friend class Pen;

    TextureBrush(IN Image* image, 
                 IN WrapMode wrapMode = WrapModeTile)
    {
        GpTexture *texture = NULL;

        lastResult = DllExports::GdipCreateTexture(
                                                  image->nativeImage,
                                                  wrapMode, &texture);

        SetNativeBrush(texture);
    }

    // When creating a texture brush from a metafile image, the dstRect
    // is used to specify the size that the metafile image should be
    // rendered at in the device units of the destination graphics.
    // It is NOT used to crop the metafile image, so only the width 
    // and height values matter for metafiles.
    TextureBrush(IN Image* image, 
                 IN WrapMode wrapMode,
                 IN const RectF &dstRect)
    {
        GpTexture *texture = NULL;

        lastResult = DllExports::GdipCreateTexture2(
                                                   image->nativeImage,
                                                   wrapMode, 
                                                   dstRect.X, 
                                                   dstRect.Y, 
                                                   dstRect.Width, 
                                                   dstRect.Height,
                                                   &texture);

        SetNativeBrush(texture);
    }
    
    // When creating a texture brush from a metafile image, the dstRect
    // is used to specify the size that the metafile image should be
    // rendered at in the device units of the destination graphics.
    // It is NOT used to crop the metafile image, so only the width 
    // and height values matter for metafiles.

    TextureBrush(IN Image *image, 
                 IN const RectF &dstRect,
                 IN const ImageAttributes *imageAttributes = NULL)
    {
        GpTexture *texture = NULL;

        lastResult = DllExports::GdipCreateTextureIA(
            image->nativeImage,
            (imageAttributes)?imageAttributes->nativeImageAttr:NULL,
            dstRect.X, 
            dstRect.Y, 
            dstRect.Width, 
            dstRect.Height,
            &texture
        );

        SetNativeBrush(texture);
    }
    
    #ifdef DCR_USE_NEW_145138
    TextureBrush(IN Image *image, 
                 IN const Rect &dstRect,
                 IN const ImageAttributes *imageAttributes = NULL)
    {
        GpTexture *texture = NULL;

        lastResult = DllExports::GdipCreateTextureIAI(
            image->nativeImage,
            (imageAttributes)?imageAttributes->nativeImageAttr:NULL,
            dstRect.X, 
            dstRect.Y, 
            dstRect.Width, 
            dstRect.Height,
            &texture
        );

        SetNativeBrush(texture);
    }
    #endif

    // When creating a texture brush from a metafile image, the dstRect
    // is used to specify the size that the metafile image should be
    // rendered at in the device units of the destination graphics.
    // It is NOT used to crop the metafile image, so only the width 
    // and height values matter for metafiles.

    TextureBrush(
        IN Image* image,
        IN WrapMode wrapMode,
        
        #ifdef DCR_USE_NEW_145138       
        const IN Rect &dstRect
        #else
        IN Rect &dstRect
        #endif
    )
    {
        GpTexture *texture = NULL;

        lastResult = DllExports::GdipCreateTexture2I(
                                                    image->nativeImage,
                                                    wrapMode, 
                                                    dstRect.X, 
                                                    dstRect.Y, 
                                                    dstRect.Width, 
                                                    dstRect.Height,
                                                    &texture);

        SetNativeBrush(texture);
    }

    // When creating a texture brush from a metafile image, the dstRect
    // is used to specify the size that the metafile image should be
    // rendered at in the device units of the destination graphics.
    // It is NOT used to crop the metafile image, so only the width 
    // and height values matter for metafiles.
    TextureBrush(IN Image* image, 
                 IN WrapMode wrapMode, 
                 IN REAL dstX, 
                 IN REAL dstY, 
                 IN REAL dstWidth, 
                 IN REAL dstHeight)
    {
        GpTexture *texture = NULL;

        lastResult = DllExports::GdipCreateTexture2(
                                                   image->nativeImage,
                                                   wrapMode, 
                                                   dstX, 
                                                   dstY, 
                                                   dstWidth, 
                                                   dstHeight,
                                                   &texture);

        SetNativeBrush(texture);