diff options
Diffstat (limited to 'sw/source/core/text/inftxt.cxx')
| -rw-r--r-- | sw/source/core/text/inftxt.cxx | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sw/source/core/text/inftxt.cxx b/sw/source/core/text/inftxt.cxx index f2c4a3f2bcf4..ee04fe11a8b2 100644 --- a/sw/source/core/text/inftxt.cxx +++ b/sw/source/core/text/inftxt.cxx @@ -69,6 +69,9 @@ #include <docufld.hxx> #include <frmfmt.hxx> #include <unomid.h> +#include <vcl/gdimtf.hxx> +#include <vcl/virdev.hxx> +#include <vcl/gradient.hxx> using namespace ::com::sun::star; using namespace ::com::sun::star::linguistic2; @@ -557,6 +560,71 @@ 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, @@ -683,6 +751,13 @@ 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 |