diff options
Diffstat (limited to 'src/platformsupport')
| -rw-r--r-- | src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp index 5dec1d0915..686563893f 100644 --- a/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp +++ b/src/platformsupport/fontdatabases/fontconfig/qfontconfigdatabase.cpp @@ -54,6 +54,13 @@ QT_BEGIN_NAMESPACE +static const int maxWeight = 99; + +static inline int mapToQtWeightForRange(int fcweight, int fcLower, int fcUpper, int qtLower, int qtUpper) +{ + return qtLower + ((fcweight - fcLower) * (qtUpper - qtLower)) / (fcUpper - fcLower); +} + static inline bool requiresOpenType(int writingSystem) { return ((writingSystem >= QFontDatabase::Syriac && writingSystem <= QFontDatabase::Sinhala) @@ -68,26 +75,22 @@ static inline int weightFromFcWeight(int fcweight) // mapping. This ensures that where there is a corresponding enum on both sides (for example // FC_WEIGHT_DEMIBOLD and QFont::DemiBold) we map one to the other but other values map // to intermediate Qt weights. - const int maxWeight = 99; - int qtweight; - if (fcweight < 0) - qtweight = 0; - else if (fcweight <= FC_WEIGHT_LIGHT) - qtweight = (fcweight * QFont::Light) / FC_WEIGHT_LIGHT; - else if (fcweight <= FC_WEIGHT_NORMAL) - qtweight = QFont::Light + ((fcweight - FC_WEIGHT_LIGHT) * (QFont::Normal - QFont::Light)) / (FC_WEIGHT_NORMAL - FC_WEIGHT_LIGHT); - else if (fcweight <= FC_WEIGHT_DEMIBOLD) - qtweight = QFont::Normal + ((fcweight - FC_WEIGHT_NORMAL) * (QFont::DemiBold - QFont::Normal)) / (FC_WEIGHT_DEMIBOLD - FC_WEIGHT_NORMAL); - else if (fcweight <= FC_WEIGHT_BOLD) - qtweight = QFont::DemiBold + ((fcweight - FC_WEIGHT_DEMIBOLD) * (QFont::Bold - QFont::DemiBold)) / (FC_WEIGHT_BOLD - FC_WEIGHT_DEMIBOLD); - else if (fcweight <= FC_WEIGHT_BLACK) - qtweight = QFont::Bold + ((fcweight - FC_WEIGHT_BOLD) * (QFont::Black - QFont::Bold)) / (FC_WEIGHT_BLACK - FC_WEIGHT_BOLD); - else if (fcweight <= FC_WEIGHT_ULTRABLACK) - qtweight = QFont::Black + ((fcweight - FC_WEIGHT_BLACK) * (maxWeight - QFont::Black)) / (FC_WEIGHT_ULTRABLACK - FC_WEIGHT_BLACK); - else - qtweight = maxWeight; - return qtweight; + if (fcweight < 0) + return 0; + if (fcweight <= FC_WEIGHT_LIGHT) + return mapToQtWeightForRange(fcweight, 0, FC_WEIGHT_LIGHT, 0, QFont::Light); + if (fcweight <= FC_WEIGHT_NORMAL) + return mapToQtWeightForRange(fcweight, FC_WEIGHT_LIGHT, FC_WEIGHT_NORMAL, QFont::Light, QFont::Normal); + if (fcweight <= FC_WEIGHT_DEMIBOLD) + return mapToQtWeightForRange(fcweight, FC_WEIGHT_NORMAL, FC_WEIGHT_DEMIBOLD, QFont::Normal, QFont::DemiBold); + if (fcweight <= FC_WEIGHT_BOLD) + return mapToQtWeightForRange(fcweight, FC_WEIGHT_DEMIBOLD, FC_WEIGHT_BOLD, QFont::DemiBold, QFont::Bold); + if (fcweight <= FC_WEIGHT_BLACK) + return mapToQtWeightForRange(fcweight, FC_WEIGHT_BOLD, FC_WEIGHT_BLACK, QFont::Bold, QFont::Black); + if (fcweight <= FC_WEIGHT_ULTRABLACK) + return mapToQtWeightForRange(fcweight, FC_WEIGHT_BLACK, FC_WEIGHT_ULTRABLACK, QFont::Black, maxWeight); + return maxWeight; } static inline int stretchFromFcWidth(int fcwidth) |