support opacity for widget definition draw SVGs

This opacity influences the whole shape (stroke and fill).

Change-Id: I82e10e07dbf2f321805b55a5f4831a513e52dab8
Reviewed-on: https://gerrit.libreoffice.org/70292
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

include/basegfx/DrawCommands.hxx

@@ -62,6 +62,7 @@ public:
     double mnRy;
 
     double mnStrokeWidth;
+    double mnOpacity;
     std::shared_ptr<basegfx::BColor> mpFillColor;
     std::shared_ptr<basegfx::BColor> mpStrokeColor;
 
@@ -71,6 +72,7 @@ public:
         , mnRx(1.0)
         , mnRy(1.0)
         , mnStrokeWidth(1.0)
+        , mnOpacity(1.0)
     {
     }
 };
@@ -81,6 +83,7 @@ public:
     basegfx::B2DPolyPolygon maPolyPolygon;
 
     double mnStrokeWidth;
+    double mnOpacity;
     std::shared_ptr<basegfx::BColor> mpFillColor;
     std::shared_ptr<basegfx::BColor> mpStrokeColor;
 
@@ -88,6 +91,7 @@ public:
         : DrawBase(DrawCommandType::Path)
         , maPolyPolygon(rPolyPolygon)
         , mnStrokeWidth(1.0)
+        , mnOpacity(1.0)
     {
     }
 };

svgio/qa/cppunit/SvgRead.cxx

@@ -74,7 +74,7 @@ uno::Reference<io::XInputStream> TestParsing::parseSvg(const OUString& aSource)
 
 void TestParsing::testSimpleRectangle()
 {
-    OUString aSvgFile = "/svgio/qa/cppunit/data/Rect.svg";
+    OUString aSvgFile = "/svgio/qa/cppunit/data/VisiotorTest-Rect.svg";
     OUString aUrl = m_directories.getURLFromSrc(aSvgFile);
     OUString aPath = m_directories.getPathFromSrc(aSvgFile);
 
@@ -102,6 +102,7 @@ void TestParsing::testSimpleRectangle()
     CPPUNIT_ASSERT_EQUAL(sal_Int32(0xff0000), sal_Int32(Color(*pDrawRect->mpStrokeColor)));
     CPPUNIT_ASSERT(bool(pDrawRect->mpFillColor));
     CPPUNIT_ASSERT_EQUAL(sal_Int32(0x00cc00), sal_Int32(Color(*pDrawRect->mpFillColor)));
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(0.1, pDrawRect->mnOpacity, 1E-12);
 }
 
 void TestParsing::testPath()
@@ -133,6 +134,7 @@ void TestParsing::testPath()
     CPPUNIT_ASSERT_EQUAL(sal_Int32(0xffffff), sal_Int32(Color(*pDrawPath->mpStrokeColor)));
     CPPUNIT_ASSERT(bool(pDrawPath->mpFillColor));
     CPPUNIT_ASSERT_EQUAL(sal_Int32(0x007aff), sal_Int32(Color(*pDrawPath->mpFillColor)));
+    CPPUNIT_ASSERT_DOUBLES_EQUAL(0.1, pDrawPath->mnOpacity, 1E-12);
 }
 
 CPPUNIT_TEST_SUITE_REGISTRATION(TestParsing);

svgio/source/svgreader/svgvisitor.cxx

@@ -74,6 +74,8 @@ void SvgDrawVisitor::visit(svgio::svgreader::SvgNode const& rNode)
             pRectangle->mnStrokeWidth
                 = rRectNode.getSvgStyleAttributes()->getStrokeWidth().getNumber();
 
+            pRectangle->mnOpacity = rRectNode.getSvgStyleAttributes()->getOpacity().getNumber();
+
             const basegfx::BColor* pFillColor = rRectNode.getSvgStyleAttributes()->getFill();
             if (pFillColor)
                 pRectangle->mpFillColor = std::make_shared<basegfx::BColor>(*pFillColor);
@@ -97,6 +99,8 @@ void SvgDrawVisitor::visit(svgio::svgreader::SvgNode const& rNode)
                 pDrawPath->mnStrokeWidth
                     = rPathNode.getSvgStyleAttributes()->getStrokeWidth().getNumber();
 
+                pDrawPath->mnOpacity = rPathNode.getSvgStyleAttributes()->getOpacity().getNumber();
+
                 const basegfx::BColor* pFillColor = rPathNode.getSvgStyleAttributes()->getFill();
                 if (pFillColor)
                     pDrawPath->mpFillColor = std::make_shared<basegfx::BColor>(*pFillColor);

vcl/source/gdi/FileDefinitionWidgetDraw.cxx

@@ -186,14 +186,15 @@ void drawFromDrawCommands(gfx::DrawRoot const& rDrawRoot, SalGraphics& rGraphics
                     rGraphics.SetLineColor();
                     rGraphics.SetFillColor(Color(*rRectangle.mpFillColor));
                     rGraphics.DrawPolyPolygon(basegfx::B2DHomMatrix(),
-                                              basegfx::B2DPolyPolygon(aB2DPolygon), 0.0f, nullptr);
+                                              basegfx::B2DPolyPolygon(aB2DPolygon),
+                                              1.0 - rRectangle.mnOpacity, nullptr);
                 }
                 if (rRectangle.mpStrokeColor)
                 {
                     rGraphics.SetLineColor(Color(*rRectangle.mpStrokeColor));
                     rGraphics.SetFillColor();
                     rGraphics.DrawPolyLine(
-                        basegfx::B2DHomMatrix(), aB2DPolygon, 0.0f,
+                        basegfx::B2DHomMatrix(), aB2DPolygon, 1.0 - rRectangle.mnOpacity,
                         basegfx::B2DVector(rRectangle.mnStrokeWidth, rRectangle.mnStrokeWidth),
                         basegfx::B2DLineJoin::Round, css::drawing::LineCap_ROUND, 0.0f, false,
                         nullptr);
@@ -230,7 +231,8 @@ void drawFromDrawCommands(gfx::DrawRoot const& rDrawRoot, SalGraphics& rGraphics
                 {
                     rGraphics.SetLineColor();
                     rGraphics.SetFillColor(Color(*rPath.mpFillColor));
-                    rGraphics.DrawPolyPolygon(basegfx::B2DHomMatrix(), aPolyPolygon, 0.0f, nullptr);
+                    rGraphics.DrawPolyPolygon(basegfx::B2DHomMatrix(), aPolyPolygon,
+                                              1.0 - rPath.mnOpacity, nullptr);
                 }
                 if (rPath.mpStrokeColor)
                 {
@@ -239,7 +241,7 @@ void drawFromDrawCommands(gfx::DrawRoot const& rDrawRoot, SalGraphics& rGraphics
                     for (auto const& rPolygon : aPolyPolygon)
                     {
                         rGraphics.DrawPolyLine(
-                            basegfx::B2DHomMatrix(), rPolygon, 0.0f,
+                            basegfx::B2DHomMatrix(), rPolygon, 1.0 - rPath.mnOpacity,
                             basegfx::B2DVector(rPath.mnStrokeWidth, rPath.mnStrokeWidth),
                             basegfx::B2DLineJoin::Round, css::drawing::LineCap_ROUND, 0.0f, false,
                             nullptr);