void addAttributedRange (const AttributedString::Attribute& attr, IDWriteTextLayout* textLayout,
const int textLen, ID2D1RenderTarget* const renderTarget, IDWriteFontCollection* const fontCollection)
{
DWRITE_TEXT_RANGE range;
range.startPosition = attr.range.getStart();
range.length = jmin (attr.range.getLength(), textLen - attr.range.getStart());
const Font* const font = attr.getFont();
if (font != nullptr)
{
BOOL fontFound = false;
uint32 fontIndex;
fontCollection->FindFamilyName (FontStyleHelpers::getConcreteFamilyName (*font).toWideCharPointer(),
&fontIndex, &fontFound);
if (! fontFound)
fontIndex = 0;
ComSmartPtr<IDWriteFontFamily> fontFamily;
HRESULT hr = fontCollection->GetFontFamily (fontIndex, fontFamily.resetAndGetPointerAddress());
ComSmartPtr<IDWriteFont> dwFont;
uint32 fontFacesCount = 0;
fontFacesCount = fontFamily->GetFontCount();
for (int i = fontFacesCount; --i >= 0;)
{
hr = fontFamily->GetFont (i, dwFont.resetAndGetPointerAddress());
if (font->getTypefaceStyle() == getFontFaceName (dwFont))
break;
}
textLayout->SetFontFamilyName (attr.getFont()->getTypefaceName().toWideCharPointer(), range);
textLayout->SetFontWeight (dwFont->GetWeight(), range);
textLayout->SetFontStretch (dwFont->GetStretch(), range);
textLayout->SetFontStyle (dwFont->GetStyle(), range);
const float fontHeightToEmSizeFactor = getFontHeightToEmSizeFactor (dwFont);
textLayout->SetFontSize (font->getHeight() * fontHeightToEmSizeFactor, range);
}
if (attr.getColour() != nullptr)
{
ComSmartPtr<ID2D1SolidColorBrush> d2dBrush;
renderTarget->CreateSolidColorBrush (D2D1::ColorF (D2D1::ColorF (attr.getColour()->getFloatRed(),
attr.getColour()->getFloatGreen(),
attr.getColour()->getFloatBlue(),
attr.getColour()->getFloatAlpha())),
d2dBrush.resetAndGetPointerAddress());
// We need to call SetDrawingEffect with a legimate brush to get DirectWrite to break text based on colours
textLayout->SetDrawingEffect (d2dBrush, range);
}
}
void getFontFamilyAndStyle (DWRITE_GLYPH_RUN const* glyphRun, String& family, String& style) const
{
ComSmartPtr<IDWriteFont> dwFont;
HRESULT hr = fontCollection->GetFontFromFontFace (glyphRun->fontFace, dwFont.resetAndGetPointerAddress());
jassert (dwFont != nullptr);
{
ComSmartPtr<IDWriteFontFamily> dwFontFamily;
hr = dwFont->GetFontFamily (dwFontFamily.resetAndGetPointerAddress());
family = getFontFamilyName (dwFontFamily);
}
style = getFontFaceName (dwFont);
}
StringArray Font::findAllTypefaceStyles (const String& family)
{
if (FontStyleHelpers::isPlaceholderFamilyName (family))
return findAllTypefaceStyles (FontStyleHelpers::getConcreteFamilyNameFromPlaceholder (family));
StringArray results;
#if JUCE_USE_DIRECTWRITE
const Direct2DFactories& factories = Direct2DFactories::getInstance();
if (factories.systemFonts != nullptr)
{
BOOL fontFound = false;
uint32 fontIndex = 0;
HRESULT hr = factories.systemFonts->FindFamilyName (family.toWideCharPointer(), &fontIndex, &fontFound);
if (! fontFound)
fontIndex = 0;
// Get the font family using the search results
// Fonts like: Times New Roman, Times New Roman Bold, Times New Roman Italic are all in the same font family
ComSmartPtr<IDWriteFontFamily> fontFamily;
hr = factories.systemFonts->GetFontFamily (fontIndex, fontFamily.resetAndGetPointerAddress());
// Get the font faces
ComSmartPtr<IDWriteFont> dwFont;
uint32 fontFacesCount = 0;
fontFacesCount = fontFamily->GetFontCount();
for (uint32 i = 0; i < fontFacesCount; ++i)
{
hr = fontFamily->GetFont (i, dwFont.resetAndGetPointerAddress());
// Ignore any algorithmically generated bold and oblique styles..
if (dwFont->GetSimulations() == DWRITE_FONT_SIMULATIONS_NONE)
results.addIfNotAlreadyThere (getFontFaceName (dwFont));
}
}
else
#endif
{
results.add ("Regular");
results.add ("Italic");
results.add ("Bold");
results.add ("Bold Italic");
}
return results;
}
Font getFontForRun (const DWRITE_GLYPH_RUN& glyphRun, float fontHeight)
{
for (int i = 0; i < attributedString.getNumAttributes(); ++i)
if (const Font* font = attributedString.getAttribute(i)->getFont())
if (WindowsDirectWriteTypeface* wt = dynamic_cast<WindowsDirectWriteTypeface*> (font->getTypeface()))
if (wt->getIDWriteFontFace() == glyphRun.fontFace)
return font->withHeight (fontHeight);
ComSmartPtr<IDWriteFont> dwFont;
HRESULT hr = fontCollection.GetFontFromFontFace (glyphRun.fontFace, dwFont.resetAndGetPointerAddress());
jassert (dwFont != nullptr);
ComSmartPtr<IDWriteFontFamily> dwFontFamily;
hr = dwFont->GetFontFamily (dwFontFamily.resetAndGetPointerAddress());
return Font (getFontFamilyName (dwFontFamily), getFontFaceName (dwFont), fontHeight);
}
