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https://github.com/KolibriOS/kolibrios.git
synced 2024-12-28 09:19:41 +03:00
46 lines
780 B
C
46 lines
780 B
C
//list_box
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struct llist
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{
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int x, y, w, h, min_h;
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int line_h;
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int count, visible, first, current;
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void ClearList();
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void SetSizes(int xx, yy, ww, hh, min_hh, line_hh);
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int MouseScroll(dword scroll_state);
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};
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void llist::ClearList()
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{
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count = visible = first = current = 0;
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}
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void llist::SetSizes(int xx, yy, ww, hh, min_hh, line_hh)
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{
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x = xx;
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y = yy;
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w = ww;
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h = hh;
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min_h = min_hh;
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line_h = line_hh;
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visible = h / line_h;
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}
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int llist::MouseScroll(dword scroll_state)
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{
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if (scroll_state == 65535)
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{
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if (first == 0) return 0;
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if (first > 3) first -= 2; else first=0;
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return 1;
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}
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if (scroll_state == 1)
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{
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if (visible+first+3 >= count) first = count - visible; else first+=2;
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return 1;
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}
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return 0;
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} |