913 lines
33 KiB
C
913 lines
33 KiB
C
// 11 february 2017
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#include "drawtext.h"
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static uiAttributedString *attrstr;
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#define nFeatures 256
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static uiOpenTypeFeatures *features[nFeatures];
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static int curFeature = 0;
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static uintptr_t addFeature(const char tag[4], uint32_t value)
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{
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uiOpenTypeFeatures *otf;
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if (curFeature >= nFeatures) {
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fprintf(stderr, "TODO (also TODO is there a panic function?)\n");
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exit(EXIT_FAILURE);
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}
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otf = uiNewOpenTypeFeatures();
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uiOpenTypeFeaturesAdd(otf, tag[0], tag[1], tag[2], tag[3], value);
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features[curFeature] = otf;
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curFeature++;
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return (uintptr_t) otf;
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}
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// some of these examples come from Microsoft's and Apple's lists of typographic features and also https://www.fontfont.com/staticcontent/downloads/FF_OT_User_Guide.pdf
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static void setupAttributedString(void)
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{
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uiAttributeSpec spec;
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size_t start, end;
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const char *next;
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uiOpenTypeFeatures *otf;
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int i;
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attrstr = uiNewAttributedString("uiAttributedString isn't just for plain text! It supports ");
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next = "multiple fonts";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFamily;
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spec.Value = (uintptr_t) "Courier New";
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple sizes";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeSize;
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spec.Double = 18;
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uiAttributedStringSetAttribute(attrstr,
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&spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple weights";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeWeight;
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spec.Value = (uintptr_t) uiDrawTextWeightBold;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple italics";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeItalic;
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spec.Value = (uintptr_t) uiDrawTextItalicItalic;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple stretches";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeStretch;
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spec.Value = (uintptr_t) uiDrawTextStretchCondensed;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple colors";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeColor;
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// Direct2D "Crimson" (#DC143C)
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spec.R = 0.8627450980392156;
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spec.G = 0.0784313725490196;
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spec.B = 0.2352941176470588;
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spec.A = 0.75;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple backgrounds";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeBackground;
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// Direct2D "Peach Puff" (#FFDAB9)
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// TODO choose a darker color
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spec.R = 1.0;
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spec.G = 0.85490196078431372;
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spec.B = 0.7254901960784313;
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spec.A = 0.5;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "multiple";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeUnderline;
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spec.Value = uiDrawUnderlineStyleSingle;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, " ");
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next = "underlines";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeUnderline;
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spec.Value = uiDrawUnderlineStyleDouble;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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spec.Type = uiAttributeUnderlineColor;
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spec.Value = uiDrawUnderlineColorCustom;
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spec.R = 0.5;
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spec.G = 0.0;
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spec.B = 1.0;
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spec.A = 1.0;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, " (");
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next = "including underlines for spelling correction and the like";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeUnderline;
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spec.Value = uiDrawUnderlineStyleSuggestion;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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spec.Type = uiAttributeUnderlineColor;
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spec.Value = uiDrawUnderlineColorSpelling;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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// TODO randomize these ranges better
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// TODO make some overlap to test that
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// TODO also change colors to light foreground dark background
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next = "or any combination of the above";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeWeight;
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spec.Value = (uintptr_t) uiDrawTextWeightBold;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end - 8);
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spec.Type = uiAttributeItalic;
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spec.Value = (uintptr_t) uiDrawTextItalicItalic;
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uiAttributedStringSetAttribute(attrstr, &spec, start + 3, end - 4);
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spec.Type = uiAttributeColor;
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spec.R = 0.8627450980392156;
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spec.G = 0.0784313725490196;
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spec.B = 0.2352941176470588;
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spec.A = 0.75;
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uiAttributedStringSetAttribute(attrstr, &spec, start + 12, end);
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spec.Type = uiAttributeFamily;
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spec.Value = (uintptr_t) "Helvetica";
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uiAttributedStringSetAttribute(attrstr, &spec, start + 8, end - 1);
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spec.Type = uiAttributeBackground;
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spec.R = 1.0;
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spec.G = 0.85490196078431372;
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spec.B = 0.7254901960784313;
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spec.A = 0.5;
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uiAttributedStringSetAttribute(attrstr, &spec, start + 5, end - 7);
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spec.Type = uiAttributeUnderline;
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spec.Value = uiDrawUnderlineStyleSingle;
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uiAttributedStringSetAttribute(attrstr, &spec, start + 9, end - 1);
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// TODO rewrite this to talk about OpenTpe instead
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// TODO also shorten this to something more useful and that covers the general gist of things (and combines features arbitrarily like the previous demo) when we add a general OpenType demo (see the last TODO in this function)
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uiAttributedStringAppendUnattributed(attrstr, ". In addition, a variety of typographical features are available (depending on the chosen font) that can be switched on (or off, if the font enables them by default): ");
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next = "fi";
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uiAttributedStringAppendUnattributed(attrstr, "standard ligatures like f+i (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("liga", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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// note the use of LTR marks and RTL embeds to make sure the bidi algorithm doesn't kick in for our demonstration (it will produce incorrect results)
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// see also: https://www.w3.org/International/articles/inline-bidi-markup/#nomarkup
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next = "\xD9\x84\xD8\xA7";
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uiAttributedStringAppendUnattributed(attrstr, "required ligatures like \xE2\x80\xAB\xD9\x84\xE2\x80\xAC+\xE2\x80\xAB\xD8\xA7\xE2\x80\xAC (\xE2\x80\x8E\xE2\x80\xAB");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("rlig", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, "\xE2\x80\xAC)");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "ct";
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uiAttributedStringAppendUnattributed(attrstr, "discretionary/rare ligatures like c+t (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("clig", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "the";
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uiAttributedStringAppendUnattributed(attrstr, "contextual ligatures like h+e in the (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("clig", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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otf = (uiOpenTypeFeatures *) addFeature("hlig", 1);
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// This technically isn't what is meant by "historical ligatures", but Core Text's internal AAT-to-OpenType mapping says to include it, so we include it too
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uiOpenTypeFeaturesAdd(otf, 'h', 'i', 's', 't', 1);
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next = "\xC3\x9F";
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uiAttributedStringAppendUnattributed(attrstr, "historical ligatures like the decomposition of \xC3\x9F (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = (uintptr_t) otf;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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// TODO a different word than "writing"?
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next = "UnICasE wRITInG";
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("unic", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "316";
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uiAttributedStringAppendUnattributed(attrstr, "proportional (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("pnum", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ") and tabular/monospaced (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("tnum", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ") numbers");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "123";
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uiAttributedStringAppendUnattributed(attrstr, "superscipts (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("sups", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "123";
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uiAttributedStringAppendUnattributed(attrstr, "subscripts (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("subs", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "1st";
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uiAttributedStringAppendUnattributed(attrstr, "ordinals (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("ordn", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "H2O";
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uiAttributedStringAppendUnattributed(attrstr, "scientific inferiors (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("sinf", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "2/3";
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uiAttributedStringAppendUnattributed(attrstr, "fraction forms (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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#if 0 /* TODO */
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFractionForms;
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spec.Value = uiAttributeFractionFormNone;
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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#endif
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("afrc", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("frac", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "0";
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uiAttributedStringAppendUnattributed(attrstr, "slashed zeroes (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("zero", 0);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, " vs. ");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("zero", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "\xCE\xA0\xCE\xA3";
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uiAttributedStringAppendUnattributed(attrstr, "mathematical greek (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("mgrk", 0);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, " vs. ");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("mgrk", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "qwertyuiop\xE2\x80\xA2";
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uiAttributedStringAppendUnattributed(attrstr, "ornamental forms (");
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for (i = 1; i < 11; i++) {
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("ornm", i);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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next = "\xE2\x80\xA2";
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}
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "g";
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uiAttributedStringAppendUnattributed(attrstr, "specific forms/alternates (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("aalt", 0);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, " vs. ");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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spec.Value = addFeature("aalt", 1);
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uiAttributedStringSetAttribute(attrstr, &spec, start, end);
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uiAttributedStringAppendUnattributed(attrstr, ")");
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uiAttributedStringAppendUnattributed(attrstr, ", ");
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next = "ABCDEFGQWERTY";
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uiAttributedStringAppendUnattributed(attrstr, "titling capital forms (");
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start = uiAttributedStringLen(attrstr);
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end = start + strlen(next);
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uiAttributedStringAppendUnattributed(attrstr, next);
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spec.Type = uiAttributeFeatures;
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|
spec.Value = addFeature("titl", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("titl", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "\xE7\x80\x86";
|
|
uiAttributedStringAppendUnattributed(attrstr, "alternate Han character forms (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("jp78", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("jp83", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
otf = (uiOpenTypeFeatures *) addFeature("onum", 0);
|
|
// Core Text's internal AAT-to-OpenType mapping says to include this, so we include it too
|
|
// TODO is it always set?
|
|
uiOpenTypeFeaturesAdd(otf, 'l', 'n', 'u', 'm', 0);
|
|
next = "0123456789";
|
|
uiAttributedStringAppendUnattributed(attrstr, "lowercase numbers (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = (uintptr_t) otf;
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
otf = (uiOpenTypeFeatures *) addFeature("onum", 1);
|
|
uiOpenTypeFeaturesAdd(otf, 'l', 'n', 'u', 'm', 1);
|
|
spec.Value = (uintptr_t) otf;
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "\xE4\xBC\xBD";
|
|
uiAttributedStringAppendUnattributed(attrstr, "hanja to hangul translation (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("hngl", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("hngl", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "\xE3\x81\x82";
|
|
uiAttributedStringAppendUnattributed(attrstr, "annotated glyph forms (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("nalt", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("nalt", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("nalt", 4); // AAT inverted circle
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "\xE3\x81\x82";
|
|
uiAttributedStringAppendUnattributed(attrstr, "ruby forms of kana (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("ruby", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("ruby", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "now is the time";
|
|
uiAttributedStringAppendUnattributed(attrstr, "italic forms of Latin letters in CJK fonts (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("ital", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("ital", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "{I} > {J}";
|
|
uiAttributedStringAppendUnattributed(attrstr, "case-sensitive character forms, such as punctuation (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("case", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("case", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "ABC";
|
|
uiAttributedStringAppendUnattributed(attrstr, "specialized spacing between uppercase letters (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("cpsp", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("cpsp", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "\xE3\x82\xB9\xE3\x83\x98\xE3\x83\x88";
|
|
uiAttributedStringAppendUnattributed(attrstr, "alternate horizontal (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("hkna", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("hkna", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ") and vertical (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("vkna", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("vkna", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ") kana forms");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "g";
|
|
uiAttributedStringAppendUnattributed(attrstr, "stylistic alternates (");
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
for (i = 1; i <= 20; i++) {
|
|
char tag[4];
|
|
|
|
tag[0] = 's';
|
|
tag[1] = 's';
|
|
tag[2] = '0';
|
|
if (i >= 10)
|
|
tag[2] = '1';
|
|
tag[3] = (i % 10) + '0'; // TODO see how I wrote this elsewhere
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Value = addFeature(tag, 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
}
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "first";
|
|
uiAttributedStringAppendUnattributed(attrstr, "contextual alternates (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("calt", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("calt", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "FONT";
|
|
uiAttributedStringAppendUnattributed(attrstr, "swashes (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("swsh", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("swsh", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "Font";
|
|
uiAttributedStringAppendUnattributed(attrstr, "contextual swashes (");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("cswh", 0);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, " vs. ");
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("cswh", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ")");
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "Small Caps";
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("smcp", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
next = "Petite Caps";
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("pcap", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ", ");
|
|
|
|
next = "SMALL UPPERCASES";
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("c2sp", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
uiAttributedStringAppendUnattributed(attrstr, ", and ");
|
|
next = "PETITE UPPERCASES";
|
|
start = uiAttributedStringLen(attrstr);
|
|
end = start + strlen(next);
|
|
uiAttributedStringAppendUnattributed(attrstr, next);
|
|
spec.Type = uiAttributeFeatures;
|
|
spec.Value = addFeature("c2pc", 1);
|
|
uiAttributedStringSetAttribute(attrstr, &spec, start, end);
|
|
|
|
uiAttributedStringAppendUnattributed(attrstr, ".");
|
|
|
|
// TODO write a dedicated example for experimenting with typographic features like the one in gtk3-demo
|
|
}
|
|
|
|
static char fontFamily[] = "Times New Roman";
|
|
// TODO should be const; look at constructor function?
|
|
static uiDrawFontDescriptor defaultFont = {
|
|
.Family = fontFamily,
|
|
.Size = 12,
|
|
.Weight = uiDrawTextWeightNormal,
|
|
.Italic = uiDrawTextItalicNormal,
|
|
.Stretch = uiDrawTextStretchNormal,
|
|
};
|
|
static uiDrawTextLayoutParams params;
|
|
|
|
#define margins 10
|
|
|
|
static uiBox *panel;
|
|
static uiCheckbox *showLineBounds;
|
|
static uiFontButton *fontButton;
|
|
|
|
// TODO should be const?
|
|
static uiDrawBrush fillBrushes[4] = {
|
|
{
|
|
.Type = uiDrawBrushTypeSolid,
|
|
.R = 1.0,
|
|
.G = 0.0,
|
|
.B = 0.0,
|
|
.A = 0.5,
|
|
},
|
|
{
|
|
.Type = uiDrawBrushTypeSolid,
|
|
.R = 0.0,
|
|
.G = 1.0,
|
|
.B = 0.0,
|
|
.A = 0.5,
|
|
},
|
|
{
|
|
.Type = uiDrawBrushTypeSolid,
|
|
.R = 0.0,
|
|
.G = 0.0,
|
|
.B = 1.0,
|
|
.A = 0.5,
|
|
},
|
|
{
|
|
.Type = uiDrawBrushTypeSolid,
|
|
.R = 0.0,
|
|
.G = 1.0,
|
|
.B = 1.0,
|
|
.A = 0.5,
|
|
},
|
|
};
|
|
|
|
static void draw(uiAreaDrawParams *p)
|
|
{
|
|
uiDrawPath *path;
|
|
uiDrawTextLayout *layout;
|
|
uiDrawBrush b;
|
|
|
|
b.Type = uiDrawBrushTypeSolid;
|
|
|
|
// only clip the text, not the guides
|
|
uiDrawSave(p->Context);
|
|
|
|
path = uiDrawNewPath(uiDrawFillModeWinding);
|
|
uiDrawPathAddRectangle(path, margins, margins,
|
|
p->AreaWidth - 2 * margins,
|
|
p->AreaHeight - 2 * margins);
|
|
uiDrawPathEnd(path);
|
|
uiDrawClip(p->Context, path);
|
|
uiDrawFreePath(path);
|
|
|
|
params.Width = p->AreaWidth - 2 * margins;
|
|
layout = uiDrawNewTextLayout(¶ms);
|
|
uiDrawText(p->Context, layout, margins, margins);
|
|
|
|
uiDrawRestore(p->Context);
|
|
|
|
if (uiCheckboxChecked(showLineBounds)) {
|
|
uiDrawTextLayoutLineMetrics m;
|
|
int i, n;
|
|
int fill = 0;
|
|
|
|
n = uiDrawTextLayoutNumLines(layout);
|
|
for (i = 0; i < n; i++) {
|
|
uiDrawTextLayoutLineGetMetrics(layout, i, &m);
|
|
|
|
path = uiDrawNewPath(uiDrawFillModeWinding);
|
|
uiDrawPathAddRectangle(path, margins + m.X, margins + m.Y,
|
|
m.Width, m.Height);
|
|
uiDrawPathEnd(path);
|
|
uiDrawFill(p->Context, path, fillBrushes + fill);
|
|
uiDrawFreePath(path);
|
|
fill = (fill + 1) % 4;
|
|
}
|
|
}
|
|
|
|
uiDrawFreeTextLayout(layout);
|
|
}
|
|
|
|
static struct example attributesExample;
|
|
|
|
static void changeFont(uiFontButton *b, void *data)
|
|
{
|
|
if (defaultFont.Family != fontFamily)
|
|
uiFreeText(defaultFont.Family);
|
|
// TODO rename defaultFont
|
|
uiFontButtonFont(fontButton, &defaultFont);
|
|
redraw();
|
|
}
|
|
|
|
// TODO share?
|
|
static void checkboxChecked(uiCheckbox *c, void *data)
|
|
{
|
|
redraw();
|
|
}
|
|
|
|
static uiCheckbox *newCheckbox(const char *text)
|
|
{
|
|
uiCheckbox *c;
|
|
|
|
c = uiNewCheckbox(text);
|
|
uiCheckboxOnToggled(c, checkboxChecked, NULL);
|
|
uiBoxAppend(panel, uiControl(c), 0);
|
|
return c;
|
|
}
|
|
|
|
struct example *mkAttributesExample(void)
|
|
{
|
|
panel = uiNewVerticalBox();
|
|
showLineBounds = newCheckbox("Show Line Bounds");
|
|
fontButton = uiNewFontButton();
|
|
uiFontButtonOnChanged(fontButton, changeFont, NULL);
|
|
// TODO set the font button to the current defaultFont
|
|
uiBoxAppend(panel, uiControl(fontButton), 0);
|
|
|
|
attributesExample.name = "Attributed Text";
|
|
attributesExample.panel = uiControl(panel);
|
|
attributesExample.draw = draw;
|
|
attributesExample.mouse = NULL;
|
|
attributesExample.key = NULL;
|
|
|
|
setupAttributedString();
|
|
params.String = attrstr;
|
|
params.DefaultFont = &defaultFont;
|
|
params.Align = uiDrawTextLayoutAlignLeft;
|
|
|
|
return &attributesExample;
|
|
}
|