tdf#129188 drawinglayer: implement EMF+ SetTextContrast
Change-Id: I5e249d5ba85df020ab90c6e543c0d8aefe0b572f
Reviewed-on: https://gerrit.libreoffice.org/84455
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
Tested-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>
diff --git a/drawinglayer/source/tools/emfphelperdata.cxx b/drawinglayer/source/tools/emfphelperdata.cxx
index 99d88a2..3a0ffc4 100644
--- a/drawinglayer/source/tools/emfphelperdata.cxx
+++ b/drawinglayer/source/tools/emfphelperdata.cxx
@@ -39,6 +39,7 @@
#include <drawinglayer/primitive2d/transformprimitive2d.hxx>
#include <drawinglayer/attribute/fontattribute.hxx>
#include <basegfx/color/bcolor.hxx>
#include <basegfx/color/bcolormodifier.hxx>
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <basegfx/polygon/b2dpolygonclipper.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
@@ -49,6 +50,8 @@
#include <vcl/settings.hxx>
#include <i18nlangtag/languagetag.hxx>
#include <algorithm>
namespace emfplushelper
{
const char* emfTypeToName(sal_uInt16 type)
@@ -79,7 +82,7 @@ namespace emfplushelper
case EmfPlusRecordTypeSetRenderingOrigin: return "EmfPlusRecordTypeSetRenderingOrigin";
case EmfPlusRecordTypeSetAntiAliasMode: return "EmfPlusRecordTypeSetAntiAliasMode";
case EmfPlusRecordTypeSetTextRenderingHint: return "EmfPlusRecordTypeSetTextRenderingHint";
case EmfPlusRecordTypeSetTextContrast: return "EmfPlusRectordTypeSetTextContrast";
case EmfPlusRecordTypeSetTextContrast: return "EmfPlusRecordTypeSetTextContrast";
case EmfPlusRecordTypeSetInterpolationMode: return "EmfPlusRecordTypeSetInterpolationMode";
case EmfPlusRecordTypeSetPixelOffsetMode: return "EmfPlusRecordTypeSetPixelOffsetMode";
case EmfPlusRecordTypeSetCompositingQuality: return "EmfPlusRecordTypeSetCompositingQuality";
@@ -899,6 +902,7 @@ namespace emfplushelper
mnOriginY(0),
mnHDPI(0),
mnVDPI(0),
mbSetTextContrast(false),
mnFrameLeft(0),
mnFrameTop(0),
mnFrameRight(0),
@@ -1537,7 +1541,29 @@ namespace emfplushelper
::basegfx::B2DSize(font->emSize, font->emSize),
::basegfx::B2DPoint(lx + stringAlignmentHorizontalOffset, ly + font->emSize));
const Color color = EMFPGetBrushColorOrARGBColor(flags, brushId);
Color uncorrectedColor = EMFPGetBrushColorOrARGBColor(flags, brushId);
Color color;
if (mbSetTextContrast)
{
const auto gammaVal = mnTextContrast / 1000;
const basegfx::BColorModifier_gamma gamma(gammaVal);
// gamma correct transparency color
sal_uInt16 alpha = uncorrectedColor.GetTransparency();
alpha = std::clamp(std::pow(alpha, 1.0 / gammaVal), 0.0, 1.0) * 255;
basegfx::BColor modifiedColor(gamma.getModifiedColor(uncorrectedColor.getBColor()));
color.SetRed(modifiedColor.getRed() * 255);
color.SetGreen(modifiedColor.getGreen() * 255);
color.SetBlue(modifiedColor.getBlue() * 255);
color.SetTransparency(alpha);
}
else
{
color = uncorrectedColor;
}
mrPropertyHolders.Current().setTextColor(color.getBColor());
mrPropertyHolders.Current().setTextColorActive(true);
@@ -1620,11 +1646,25 @@ namespace emfplushelper
SAL_INFO("drawinglayer", "EMF+ SetRenderingOrigin, [x,y]: " << mnOriginX << "," << mnOriginY);
break;
}
case EmfPlusRecordTypeSetTextContrast:
{
const sal_uInt16 LOWERGAMMA = 1000;
const sal_uInt16 UPPERGAMMA = 2200;
mbSetTextContrast = true;
mnTextContrast = flags & 0xFFF;
SAL_WARN_IF(mnTextContrast > UPPERGAMMA || mnTextContrast < LOWERGAMMA,
"drawinglayer", "Gamma value is not with bounds 1000 to 2200, value is " << mnTextContrast);
mnTextContrast = std::min(mnTextContrast, UPPERGAMMA);
mnTextContrast = std::max(mnTextContrast, LOWERGAMMA);
SAL_INFO("drawinglayer", "EMF+\t Text contrast: " << (mnTextContrast / 1000) << " gamma");
break;
}
case EmfPlusRecordTypeSetTextRenderingHint:
{
sal_uInt8 nTextRenderingHint = (flags & 0xFF) >> 1;
SAL_INFO("drawinglayer", "EMF+\t Text rendering hint: " << TextRenderingHintToString(nTextRenderingHint));
SAL_INFO("drawinglayer", "TODO\t EMF+ SetTextRenderingHint");
SAL_WARN("drawinglayer", "TODO\t EMF+ SetTextRenderingHint");
break;
}
case EmfPlusRecordTypeSetAntiAliasMode:
@@ -1633,14 +1673,14 @@ namespace emfplushelper
sal_uInt8 nSmoothingMode = (flags & 0xFE00) >> 1;
SAL_INFO("drawinglayer", "EMF+\t Antialiasing: " << (bUseAntiAlias ? "enabled" : "disabled"));
SAL_INFO("drawinglayer", "EMF+\t Smoothing mode: " << SmoothingModeToString(nSmoothingMode));
SAL_INFO("drawinglayer", "TODO\t EMF+ SetAntiAliasMode");
SAL_WARN("drawinglayer", "TODO\t EMF+ SetAntiAliasMode");
break;
}
case EmfPlusRecordTypeSetInterpolationMode:
{
sal_uInt16 nInterpolationMode = flags & 0xFF;
SAL_INFO("drawinglayer", "EMF+\t Interpolation mode: " << InterpolationModeToString(nInterpolationMode));
SAL_INFO("drawinglayer", "TODO\t EMF+ InterpolationMode");
SAL_WARN("drawinglayer", "TODO\t EMF+ InterpolationMode");
break;
}
case EmfPlusRecordTypeSetPixelOffsetMode:
diff --git a/drawinglayer/source/tools/emfphelperdata.hxx b/drawinglayer/source/tools/emfphelperdata.hxx
index a656035..76e4b65 100644
--- a/drawinglayer/source/tools/emfphelperdata.hxx
+++ b/drawinglayer/source/tools/emfphelperdata.hxx
@@ -189,6 +189,8 @@ namespace emfplushelper
sal_Int32 mnOriginY;
sal_uInt32 mnHDPI;
sal_uInt32 mnVDPI;
bool mbSetTextContrast;
sal_uInt16 mnTextContrast;
/* EMF+ emf header info */
sal_Int32 mnFrameLeft;
