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-rw-r--r--sw/source/core/text/inftxt.cxx75
1 files changed, 75 insertions, 0 deletions
diff --git a/sw/source/core/text/inftxt.cxx b/sw/source/core/text/inftxt.cxx
index 9fc9116fe1e4..efe9d54e1222 100644
--- a/sw/source/core/text/inftxt.cxx
+++ b/sw/source/core/text/inftxt.cxx
@@ -64,6 +64,9 @@
#include <EnhancedPDFExportHelper.hxx>
#include <docsh.hxx>
#include <strings.hrc>
+#include <vcl/gdimtf.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/gradient.hxx>
using namespace ::com::sun::star;
using namespace ::com::sun::star::linguistic2;
@@ -552,6 +555,71 @@ static bool lcl_IsDarkBackground( const SwTextPaintInfo& rInf )
return pCol->IsDark();
}
+namespace
+{
+/**
+ * Context class that captures the draw operations on rDrawInf's output device for transparency
+ * purposes.
+ */
+class SwTransparentTextGuard
+{
+ ScopedVclPtrInstance<VirtualDevice> m_aContentVDev;
+ GDIMetaFile m_aContentMetafile;
+ MapMode m_aNewMapMode;
+ SwRect m_aPorRect;
+ SwTextPaintInfo& m_rPaintInf;
+ SwDrawTextInfo& m_rDrawInf;
+
+public:
+ SwTransparentTextGuard(const SwLinePortion& rPor, SwTextPaintInfo& rPaintInf,
+ SwDrawTextInfo& rDrawInf);
+ ~SwTransparentTextGuard();
+};
+
+SwTransparentTextGuard::SwTransparentTextGuard(const SwLinePortion& rPor,
+ SwTextPaintInfo& rPaintInf, SwDrawTextInfo& rDrawInf)
+ : m_aNewMapMode(rPaintInf.GetOut()->GetMapMode())
+ , m_rPaintInf(rPaintInf)
+ , m_rDrawInf(rDrawInf)
+{
+ rPaintInf.CalcRect(rPor, &m_aPorRect);
+ rDrawInf.SetOut(*m_aContentVDev);
+ m_aContentVDev->SetMapMode(rPaintInf.GetOut()->GetMapMode());
+ m_aContentMetafile.Record(m_aContentVDev.get());
+ m_aContentVDev->SetLineColor(rPaintInf.GetOut()->GetLineColor());
+ m_aContentVDev->SetFillColor(rPaintInf.GetOut()->GetFillColor());
+ m_aContentVDev->SetFont(rPaintInf.GetOut()->GetFont());
+ m_aContentVDev->SetDrawMode(rPaintInf.GetOut()->GetDrawMode());
+ m_aContentVDev->SetSettings(rPaintInf.GetOut()->GetSettings());
+ m_aContentVDev->SetRefPoint(rPaintInf.GetOut()->GetRefPoint());
+}
+
+SwTransparentTextGuard::~SwTransparentTextGuard()
+{
+ m_aContentMetafile.Stop();
+ m_aContentMetafile.WindStart();
+ m_aNewMapMode.SetOrigin(m_aPorRect.TopLeft());
+ m_aContentMetafile.SetPrefMapMode(m_aNewMapMode);
+ m_aContentMetafile.SetPrefSize(m_aPorRect.SSize());
+ m_rDrawInf.SetOut(*m_rPaintInf.GetOut());
+ Gradient aVCLGradient;
+ sal_uInt8 nTransPercentVcl = m_rPaintInf.GetFont()->GetColor().GetTransparency();
+ const Color aTransColor(nTransPercentVcl, nTransPercentVcl, nTransPercentVcl);
+ aVCLGradient.SetStyle(GradientStyle::Linear);
+ aVCLGradient.SetStartColor(aTransColor);
+ aVCLGradient.SetEndColor(aTransColor);
+ aVCLGradient.SetAngle(0);
+ aVCLGradient.SetBorder(0);
+ aVCLGradient.SetOfsX(0);
+ aVCLGradient.SetOfsY(0);
+ aVCLGradient.SetStartIntensity(100);
+ aVCLGradient.SetEndIntensity(100);
+ aVCLGradient.SetSteps(2);
+ m_rPaintInf.GetOut()->DrawTransparent(m_aContentMetafile, m_aPorRect.TopLeft(),
+ m_aPorRect.SSize(), aVCLGradient);
+}
+}
+
void SwTextPaintInfo::DrawText_( const OUString &rText, const SwLinePortion &rPor,
TextFrameIndex const nStart, TextFrameIndex const nLength,
const bool bKern, const bool bWrong,
@@ -678,6 +746,13 @@ void SwTextPaintInfo::DrawText_( const OUString &rText, const SwLinePortion &rPo
aFontPos.setY( 0 );
}
+ // Handle semi-transparent text if necessary.
+ std::unique_ptr<SwTransparentTextGuard> pTransparentText;
+ if (m_pFnt->GetColor() != COL_AUTO && m_pFnt->GetColor().GetTransparency() != 0)
+ {
+ pTransparentText.reset(new SwTransparentTextGuard(rPor, *this, aDrawInf));
+ }
+
if( GetTextFly().IsOn() )
{
// aPos needs to be the TopLeft, because we cannot calculate the