62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
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#ifndef NULLSOFT_ML_IMAGE_HEADER
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#define NULLSOFT_ML_IMAGE_HEADER
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#include <windows.h>
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#define RGBA(r,g,b,a) ((COLORREF)(((BYTE)(r)|((WORD)(g)<<8))|(((DWORD)(BYTE)(b))<<16)|(((DWORD)(BYTE)(a))<<24)))
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#define FIXCOLORREF(clr) RGBA(GetBValue(clr),GetGValue(clr), GetRValue(clr),((DWORD)(clr)) >> 24)
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// loader function will be called every time MLImage need to
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// reload picture. Input parameter - handle to the calling object
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// Output - loaded bitmap
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typedef HBITMAP (*IMGLOADFUNC)(INT_PTR handle);
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class MLImage
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{
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public:
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MLImage(void);
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MLImage(IMGLOADFUNC loader, BOOL deleteDone);
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MLImage(int width, int height);
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~MLImage(void);
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public:
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// sets the loader function and returns handle to the class or NULL if error
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// loader - pointer to the loader function
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// deleteDone - if TRUE MLImage will delete HBITMAP object from loader every time it is done loading
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// forceLoad - forcing to load bitamp immedialty by calling Load()
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INT_PTR SetLoader(IMGLOADFUNC loader, BOOL deleteDone, BOOL forceLoad);
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BOOL Load(void); // load image
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MLImage* Init(int width, int height); // init image (allocates memory)
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MLImage* Init(int width, int height, COLORREF color); // init image (allocates memory) and set
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BOOL Draw(HDC hdcDest, int destX, int destY, int destWidth, int destHeight, int sourceX, int sourceY); // draw image
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BOOL Draw(HDC hdcDest, int destX, int destY); // draw image
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public:
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int GetWidth(void) const;
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int GetHeight(void) const;
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void* GetData(void) const;
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private:
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void ResetData(void);
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public:
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static MLImage* Copy(MLImage* destination, const MLImage* original);// copy all data from the original object (including image data) to the destination
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private:
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static HBITMAP ConvertTo32BppDIB(HBITMAP bmpHandle, int bmpWidth, int bmpHeight, LPBITMAPINFO bmpInfo, LPVOID *bmpData);
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private:
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IMGLOADFUNC loader; // pointer to the loader function
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BOOL loaderDelete; // TRUE - delete HBITMAP from loader after load
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HBITMAP hbmp; // my bitmap
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BITMAPINFO info;
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void *data;
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};
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#endif // NULLSOFT_ML_IMAGE_HEADER
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