forked from KolibriOS/kolibrios
95 lines
1.9 KiB
C
95 lines
1.9 KiB
C
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dword buf_data;
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struct DrawBufer {
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int bufx, bufy, bufw, bufh;
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void Init();
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void Show();
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void Fill();
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void Skew();
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void DrawBar();
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void PutPixel();
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void AlignCenter();
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void AlignRight();
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};
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void DrawBufer::Init(int i_bufx, i_bufy, i_bufw, i_bufh)
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{
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bufx = i_bufx;
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bufy = i_bufy;
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bufw = i_bufw;
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bufh = i_bufh;
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free(buf_data);
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buf_data = malloc(bufw * bufh * 4 + 8); //+1 for good luck
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ESDWORD[buf_data] = bufw;
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ESDWORD[buf_data+4] = bufh;
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}
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void DrawBufer::Show()
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{
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PutPaletteImage(buf_data+8, bufw, bufh, bufx, bufy, 32,0);
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}
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void DrawBufer::Fill(dword fill_color)
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{
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int i;
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int max_i = bufw * bufh * 4 + buf_data + 8;
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for (i=buf_data+8; i<max_i; i+=4) ESDWORD[i] = fill_color;
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}
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void DrawBufer::DrawBar(dword x, y, w, h, color)
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{
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int i, j;
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for (j=0; j<h; j++)
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{
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for (i = y+j*bufw+x*4+8+buf_data; i<y+j*bufw+x+w*4+8+buf_data; i+=4) ESDWORD[i] = color;
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}
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}
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void DrawBufer::PutPixel(dword x, y, color)
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{
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int pos = y*bufw+x*4+8+buf_data;
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ESDWORD[pos] = color;
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}
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char shift[]={8,8,4,4};
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void DrawBufer::Skew(dword x, y, w, h)
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{
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int i, j;
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for (j=0; j<=3; j++)
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{
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for (i = y+j*bufw+x+w+h*4; i>y+j*bufw+x+h-12*4 ; i-=4)
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ESDWORD[buf_data+i+8] = ESDWORD[-shift[j]+buf_data+i+8];
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}
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}
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void DrawBufer::AlignRight(dword x,y,w,h, content_width)
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{
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int i, j, l;
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int content_left = w - content_width / 2;
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for (j=0; j<h; j++)
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{
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for (i=j*w+w-x*4, l=j*w+content_width+x*4; (i>=j*w+content_left*4) && (l>=j*w*4); i-=4, l-=4)
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{
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ESDWORD[buf_data+8+i] >< ESDWORD[buf_data+8+l];
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}
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}
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}
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void DrawBufer::AlignCenter(dword x,y,w,h, content_width)
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{
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int i, j, l;
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int content_left = w - content_width / 2;
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for (j=0; j<h; j++)
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{
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for (i=j*w+content_width+content_left*4, l=j*w+content_width+x*4; (i>=j*w+content_left*4) && (l>=j*w*4); i-=4, l-=4)
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{
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ESDWORD[buf_data+8+i] >< ESDWORD[buf_data+8+l];
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}
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}
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}
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