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117 lines
2.8 KiB
117 lines
2.8 KiB
/* |
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SPDX-FileCopyrightText: 2018 Julian Wolff <[email protected]> |
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SPDX-License-Identifier: LGPL-2.0-or-later |
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*/ |
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#include "previewrenderengine.h" |
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#include "Fc.h" |
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#include <QApplication> |
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#include <QScreen> |
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#include <QX11Info> |
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#include <X11/Xft/Xft.h> |
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#ifdef HAVE_FONTCONFIG |
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static int qtToFcWeight(int weight) |
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{ |
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switch (weight) { |
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case 0: |
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return FC_WEIGHT_THIN; |
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case QFont::Light >> 1: |
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return FC_WEIGHT_EXTRALIGHT; |
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case QFont::Light: |
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return FC_WEIGHT_LIGHT; |
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default: |
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case QFont::Normal: |
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return FC_WEIGHT_REGULAR; |
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case (QFont::Normal + QFont::DemiBold) >> 1: |
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#ifdef KFI_HAVE_MEDIUM_WEIGHT |
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return FC_WEIGHT_MEDIUM; |
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#endif |
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case QFont::DemiBold: |
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return FC_WEIGHT_DEMIBOLD; |
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case QFont::Bold: |
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return FC_WEIGHT_BOLD; |
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case (QFont::Bold + QFont::Black) >> 1: |
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return FC_WEIGHT_EXTRABOLD; |
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case QFont::Black: |
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return FC_WEIGHT_BLACK; |
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} |
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} |
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#ifndef KFI_FC_NO_WIDTHS |
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static int qtToFcWidth(int weight) |
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{ |
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switch (weight) { |
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case QFont::UltraCondensed: |
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return KFI_FC_WIDTH_ULTRACONDENSED; |
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case QFont::ExtraCondensed: |
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return KFI_FC_WIDTH_EXTRACONDENSED; |
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case QFont::Condensed: |
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return KFI_FC_WIDTH_CONDENSED; |
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case QFont::SemiCondensed: |
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return KFI_FC_WIDTH_SEMICONDENSED; |
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default: |
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case QFont::Unstretched: |
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return KFI_FC_WIDTH_NORMAL; |
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case QFont::SemiExpanded: |
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return KFI_FC_WIDTH_SEMIEXPANDED; |
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case QFont::Expanded: |
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return KFI_FC_WIDTH_EXPANDED; |
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case QFont::ExtraExpanded: |
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return KFI_FC_WIDTH_EXTRAEXPANDED; |
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case QFont::UltraExpanded: |
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return KFI_FC_WIDTH_ULTRAEXPANDED; |
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} |
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} |
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#endif |
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static bool qtToFcSlant(int slant) |
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{ |
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switch (slant) { |
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default: |
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case QFont::StyleNormal: |
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return FC_SLANT_ROMAN; |
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case QFont::StyleItalic: |
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return FC_SLANT_ITALIC; |
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case QFont::StyleOblique: |
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return FC_SLANT_OBLIQUE; |
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} |
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} |
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static quint32 qtToFcStyle(const QFont &font) |
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{ |
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return KFI::FC::createStyleVal(qtToFcWeight(font.weight()), qtToFcWidth(font.stretch()), qtToFcSlant(font.style())); |
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} |
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PreviewRenderEngine::PreviewRenderEngine(bool init) |
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: CFcEngine(init) |
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{ |
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if (init) |
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FcInitReinitialize(); |
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} |
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PreviewRenderEngine::~PreviewRenderEngine() |
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{ |
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} |
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QImage PreviewRenderEngine::drawAutoSize(const QFont &font, const QColor &txt, const QColor &bgnd, const QString &text) |
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{ |
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const QString &name = font.family(); |
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const quint32 style = qtToFcStyle(font); |
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int faceNo = 0; |
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double ratio = QGuiApplication::primaryScreen()->devicePixelRatio(); |
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double dpi = QX11Info::appDpiY(); |
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int fSize((int)(((font.pointSizeF() * dpi * ratio) / 72.0) + 0.5)); |
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QImage image(draw(name, style, faceNo, txt, bgnd, fSize, text)); |
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image.setDevicePixelRatio(ratio); |
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return image; |
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} |
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#endif // HAVE_FONTCONFIG
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