51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
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//This is a test image we are going
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//to draw and determine the extents of.
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$SP,"<1>",1$
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U0 Extents()
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{
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CDC *dc=DCAlias;
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I64 min_x,max_x,min_y,max_y;
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//We want screen, not window coordinates.
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I64 h=Fs->win_pixel_left+Fs->win_scroll_x,v=Fs->win_pixel_top+Fs->win_scroll_y;
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DocClear;
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DCFill;
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//This sets a flag to record the
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//extents of what we draw and inits
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//the max's and min's. Vals are
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//screen coordinates.
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DCExtentsInit(dc);
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dc->pen_width=3;
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SpritePlot3(dc,40,GR_HEIGHT>>1,0,$IB,"<1>",1$);
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dc->color=LTRED;
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dc->pen_width=1;
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//This box is the extents.
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GrLine(dc,dc->min_x-h,dc->min_y-v,dc->max_x-h,dc->min_y-v);
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GrLine(dc,dc->min_x-h,dc->min_y-v,dc->min_x-h,dc->max_y-v);
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GrLine(dc,dc->max_x-h,dc->max_y-v,dc->max_x-h,dc->min_y-v);
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GrLine(dc,dc->max_x-h,dc->max_y-v,dc->min_x-h,dc->max_y-v);
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DCDel(dc);
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PressAKey;
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DCFill;
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SpriteExtents($IB,"<1>",1$,&min_x,&max_x,&min_y,&max_y);
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"X: %d to %d\n",min_x,max_x;
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"Y: %d to %d\n",min_y,max_y;
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}
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Extents;
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œ # øÿÿÿ# øÿÿÿ1 1 " " * * * þÿÿÿ þÿÿÿ* õÿÿÿôÿÿÿHello |