62 lines
2.7 KiB
C++
62 lines
2.7 KiB
C++
// 11 march 2018
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#include "uipriv_windows.hpp"
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#include "attrstr.hpp"
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// TODO should be const but then I can't operator[] on it; the real solution is to find a way to do designated array initializers in C++11 but I do not know enough C++ voodoo to make it work (it is possible but no one else has actually done it before)
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static std::map<uiTextItalic, DWRITE_FONT_STYLE> dwriteItalics = {
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{ uiTextItalicNormal, DWRITE_FONT_STYLE_NORMAL },
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{ uiTextItalicOblique, DWRITE_FONT_STYLE_OBLIQUE },
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{ uiTextItalicItalic, DWRITE_FONT_STYLE_ITALIC },
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};
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// TODO should be const but then I can't operator[] on it; the real solution is to find a way to do designated array initializers in C++11 but I do not know enough C++ voodoo to make it work (it is possible but no one else has actually done it before)
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static std::map<uiTextStretch, DWRITE_FONT_STRETCH> dwriteStretches = {
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{ uiTextStretchUltraCondensed, DWRITE_FONT_STRETCH_ULTRA_CONDENSED },
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{ uiTextStretchExtraCondensed, DWRITE_FONT_STRETCH_EXTRA_CONDENSED },
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{ uiTextStretchCondensed, DWRITE_FONT_STRETCH_CONDENSED },
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{ uiTextStretchSemiCondensed, DWRITE_FONT_STRETCH_SEMI_CONDENSED },
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{ uiTextStretchNormal, DWRITE_FONT_STRETCH_NORMAL },
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{ uiTextStretchSemiExpanded, DWRITE_FONT_STRETCH_SEMI_EXPANDED },
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{ uiTextStretchExpanded, DWRITE_FONT_STRETCH_EXPANDED },
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{ uiTextStretchExtraExpanded, DWRITE_FONT_STRETCH_EXTRA_EXPANDED },
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{ uiTextStretchUltraExpanded, DWRITE_FONT_STRETCH_ULTRA_EXPANDED },
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};
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// for the most part, DirectWrite weights correlate to ours
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// the differences:
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// - Minimum — libui: 0, DirectWrite: 1
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// - Maximum — libui: 1000, DirectWrite: 999
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// TODO figure out what to do about this shorter range (the actual major values are the same (but with different names), so it's just a range issue)
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DWRITE_FONT_WEIGHT uiprivWeightToDWriteWeight(uiTextWeight w)
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{
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return (DWRITE_FONT_WEIGHT) w;
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}
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DWRITE_FONT_STYLE uiprivItalicToDWriteStyle(uiTextItalic i)
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{
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return dwriteItalics[i];
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}
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DWRITE_FONT_STRETCH uiprivStretchToDWriteStretch(uiTextStretch s)
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{
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return dwriteStretches[s];
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}
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void uiprivFontDescriptorFromIDWriteFont(IDWriteFont *font, uiFontDescriptor *uidesc)
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{
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DWRITE_FONT_STYLE dwitalic;
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DWRITE_FONT_STRETCH dwstretch;
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dwitalic = font->GetStyle();
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// TODO reverse the above misalignment if it is corrected
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uidesc->Weight = (uiTextWeight) (font->GetWeight());
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dwstretch = font->GetStretch();
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for (uidesc->Italic = uiTextItalicNormal; uidesc->Italic < uiTextItalicItalic; uidesc->Italic++)
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if (dwriteItalics[uidesc->Italic] == dwitalic)
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break;
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for (uidesc->Stretch = uiTextStretchUltraCondensed; uidesc->Stretch < uiTextStretchUltraExpanded; uidesc->Stretch++)
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if (dwriteStretches[uidesc->Stretch] == dwstretch)
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break;
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}
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