73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
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// 15 september 2015
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// TODO uiDrawBeginTextRGB(/RGBA?)
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// might need something more flexible for attributed text
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typedef struct uiDrawFont uiDrawFont;
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typedef struct uiDrawFontSpec uiDrawFontSpec;
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typedef struct uiDrawTextBlockParams uiDrawTextBlockParams;
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typedef struct uiDrawFontMetrics uiDrawFontMetrics;
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typedef enum uiDrawTextWeight uiDrawTextWeight;
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typedef enum uiDrawTextAlign uiDrawTextAlign;
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enum uiDrawTextWeight {
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uiDrawTextWeightThin,
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uiDrawTextWeightExtraLight,
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uiDrawTextWeightLight,
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uiDrawTextWeightNormal,
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uiDrawTextWeightMedium,
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uiDrawTextWeightSemiBold,
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uiDrawTextWeightBold,
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uiDrawTextWeightExtraBold,
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uiDrawTextWeightHeavy,
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};
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struct uiDrawFontSpec {
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const char *Family;
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uintmax_t PointSize;
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uiDrawTextWeight Weight;
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int Italic; // always prefers true italics over obliques whenever possible
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int Vertical;
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};
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enum uiDrawTextAlign {
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uiDrawTextAlignLeft,
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uiDrawTextAlignCenter,
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uiDrawTextAlignRight,
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};
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struct uiDrawTextBlockParams {
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intmax_t Width;
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intmax_t FirstLineIndent;
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intmax_t LineSpacing;
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uiDrawTextAlign Align;
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int Justify;
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};
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struct uiDrawFontMetrics {
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// TODO
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// metrics on Windows are per-device; other platforms not?
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};
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#define uiDrawTextPixelSizeToPointSize(pix, dpiY) \
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((uintmax_t) ((((double) (pix)) * 72.0) / ((double) (dpiY))))
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#define uiDrawTextPointSizeToPixelSize(pt, dpiY) \
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((uintmax_t) (((double) (pt)) * (((double) (dpiY)) / 72.0)))
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uiDrawFont *uiDrawPrepareFont(uiDrawFontSpec *);
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void uiDrawFreeFont(uiDrawFont *);
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void uiDrawText(uiDrawContext *, const char *, uiDrawFont *, intmax_t, intmax_t);
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void uiDrawTextBlock(uiDrawContext *, const char *, uiDrawFont *, intmax_t, intmax_t, uiDrawTextBlockParams *);
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void uiDrawTextExtents(uiDrawContext *, const char *, uiDrawFont *, intmax_t *, intmax_t *);
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intmax_t uiDrawTextExtentsBlockHeight(uiDrawContext *, const char *, uiDrawFont *, uiDrawTextBlockParams *);
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// TODO width for number of lines
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//TODOvoid uiDrawContextFontMetrics(uiDrawContext *, uiDrawFont *, uiDrawFontMetrics *);
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// TODO draw text, single line, control font
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// TODO draw text, wrapped to width, control font
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// TODO get text extents, single line, control font
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// TODO get text height for width, control font
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// TODO width for number of lines, control font
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// TODO get font metrics, control font
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