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OBLOB2W.H

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00001 // Filename    : OBLOB2.H
00002 // Description : header file of 2D binary block, four side extensible
00003 
00004 #ifndef __OBLOB2W_H
00005 #define __OBLOB2W_H
00006 
00007 #include <OBITMAPW.H>
00008 
00009 // ------- define class Blob2DW ----------//
00010 
00013 class Blob2DW {
00014 public:
00015     BitmapW *ptr;
00016     unsigned int alloc_size;
00017     short left_edge;
00018     short top_edge;
00019     short width;
00020     short height;
00021 
00022 public:
00023     Blob2DW();
00024     Blob2DW( Blob2DW & );
00025     ~Blob2DW();
00026 
00027     Blob2DW& operator=(Blob2DW &);
00028 
00029     void  resize(short left, short top, short w, short h);
00030     int extend_to(short x, short y);
00031     int extend_to(short x1, short y1, short x2, short y2);
00032 
00033     short *bitmap_ptr() { return (short *)ptr; }
00034     short *buf_ptr()    { return ptr->bitmap; }
00035     int buf_pitch()   { return ptr->get_pitch(); }
00036     int buf_true_pitch() { return ptr->get_true_pitch(); }
00037     short *p(short x, short y, int autoExtend=1);
00038     void  fill_area(short x1, short y1, short x2, short y2, short color,
00039                     int autoExtend=1);
00040     void  auto_clip(short *pLeft, short *pTop, short *pWidth, short *pHeight, int autoResize=1);
00041 
00042     void  clear();
00043     int is_clear()  { return width == 0 && height == 0; }
00044 };
00045 #endif

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