69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
// 4 september 2015
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typedef struct uiArea uiArea;
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typedef struct uiAreaHandler uiAreaHandler;
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typedef struct uiAreaDrawParams uiAreaDrawParams;
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typedef struct uiDrawContext uiDrawContext;
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struct uiAreaHandler {
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void (*Draw)(uiAreaHandler *, uiArea *, uiAreaDrawParams *);
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uintmax_t (*HScrollMax)(uiAreaHandler *, uiArea *);
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uintmax_t (*VScrollMax)(uiAreaHandler *, uiArea *);
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};
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struct uiAreaDrawParams {
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uiDrawContext *Context;
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intmax_t ClientWidth;
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intmax_t ClientHeight;
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intmax_t ClipX;
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intmax_t ClipY;
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intmax_t ClipWidth;
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intmax_t ClipHeight;
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int DPIX;
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int DPIY;
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intmax_t HScrollPos;
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intmax_t VScrollPos;
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};
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// TODO default miter limit?
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// cairo - 10.0
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// GDI - ?
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// Core Graphics - ?
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// TODO dotting/dashing
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typedef struct uiDrawStrokeParams uiDrawStrokeParams;
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typedef enum uiDrawLineCap uiDrawLineCap;
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typedef enum uiDrawLineJoin uiDrawLineJoin;
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typedef uint32_t uiRGB;
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enum uiDrawLineCap {
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uiDrawLineCapFlat,
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uiDrawLineCapRound,
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uiDrawLineCapSquare,
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};
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enum uiDrawLineJoin {
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uiDrawLineJoinMiter,
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uiDrawLineJoinRound,
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uiDrawLineJoinBevel,
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};
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struct uiDrawStrokeParams {
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uiRGB RGB;
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uiDrawLineCap Cap;
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uiDrawLineJoin Join;
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intmax_t Thickness;
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intmax_t MiterLimit;
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};
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void uiDrawMoveTo(uiDrawContext *, intmax_t, intmax_t);
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void uiDrawLineTo(uiDrawContext *, intmax_t, intmax_t);
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void uiDrawStroke(uiDrawContext *, uiDrawStrokeParams *);
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