diff options
Diffstat (limited to 'drawinglayer/source/processor2d/vclprocessor2d.cxx')
-rw-r--r-- | drawinglayer/source/processor2d/vclprocessor2d.cxx | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/drawinglayer/source/processor2d/vclprocessor2d.cxx b/drawinglayer/source/processor2d/vclprocessor2d.cxx index d1b85ff9618f..1ec9f50dc53e 100644 --- a/drawinglayer/source/processor2d/vclprocessor2d.cxx +++ b/drawinglayer/source/processor2d/vclprocessor2d.cxx @@ -782,6 +782,97 @@ namespace drawinglayer } } + // direct draw of MetaFile + void VclProcessor2D::RenderMetafilePrimitive2D(const primitive2d::MetafilePrimitive2D& rMetaCandidate) + { + // decompose matrix to check for shear, rotate and mirroring + basegfx::B2DHomMatrix aLocalTransform(maCurrentTransformation * rMetaCandidate.getTransform()); + basegfx::B2DVector aScale, aTranslate; + double fRotate, fShearX; + aLocalTransform.decompose(aScale, aTranslate, fRotate, fShearX); + + if(basegfx::fTools::less(aScale.getX(), 0.0) && basegfx::fTools::less(aScale.getY(), 0.0)) + { + // #i102175# handle special case: If scale is negative in (x,y) (3rd quadrant), it can + // be expressed as rotation by PI. This needs to be done for Metafiles since + // these can be rotated, but not really mirrored + aScale = basegfx::absolute(aScale); + fRotate += F_PI; + } + + // get BoundRect + basegfx::B2DRange aOutlineRange(rMetaCandidate.getB2DRange(getViewInformation2D())); + aOutlineRange.transform(maCurrentTransformation); + + // Due to the integer MapModes used from VCL aind inside MetaFiles errors of up to three + // pixels in size may happen. As long as there is no better way (e.g. convert the MetaFile + // to primitives) it is necessary to reduce maximum pixel size by 1 in X and Y and to use + // the inner pixel bounds accordingly (ceil resp. floor). This will also be done for logic + // units e.g. when creating a new MetaFile, but since much huger value ranges are used + // there typically will be okay for this compromize. + Rectangle aDestRectView( + // !!CAUTION!! Here, ceil and floor are exchanged BY PURPOSE, do NOT copy when + // looking for a standard conversion to rectangle (!) + (sal_Int32)ceil(aOutlineRange.getMinX()), (sal_Int32)ceil(aOutlineRange.getMinY()), + (sal_Int32)floor(aOutlineRange.getMaxX()), (sal_Int32)floor(aOutlineRange.getMaxY())); + + // get metafile (copy it) + GDIMetaFile aMetaFile; + + if(maBColorModifierStack.count()) + { + const basegfx::BColor aRGBBaseColor(0, 0, 0); + const basegfx::BColor aRGBColor(maBColorModifierStack.getModifiedColor(aRGBBaseColor)); + aMetaFile = rMetaCandidate.getMetaFile().GetMonochromeMtf(Color(aRGBColor)); + } + else + { + aMetaFile = rMetaCandidate.getMetaFile(); + } + + // rotation + if(!basegfx::fTools::equalZero(fRotate)) + { + // #i103530# + // MetaFile::Rotate has no input parameter check, so the parameter needs to be + // well-aligned to the old range [0..3600] 10th degrees with inverse orientation + sal_Int16 nRotation((sal_Int16)((fRotate / F_PI180) * -10.0)); + + while(nRotation < 0) + nRotation += 3600; + + while(nRotation >= 3600) + nRotation -= 3600; + + aMetaFile.Rotate(nRotation); + } + + // Prepare target output size + Size aDestSize(aDestRectView.GetSize()); + + if(aDestSize.getWidth() && aDestSize.getHeight()) + { + // Get preferred Metafile output size. When it's very equal to the output size, it's probably + // a rounding error somewhere, so correct it to get a 1:1 output without single pixel scalings + // of the Metafile (esp. for contaned Bitmaps, e.g 3D charts) + const Size aPrefSize(mpOutputDevice->LogicToPixel(aMetaFile.GetPrefSize(), aMetaFile.GetPrefMapMode())); + + if(aPrefSize.getWidth() && (aPrefSize.getWidth() - 1 == aDestSize.getWidth() || aPrefSize.getWidth() + 1 == aDestSize.getWidth())) + { + aDestSize.setWidth(aPrefSize.getWidth()); + } + + if(aPrefSize.getHeight() && (aPrefSize.getHeight() - 1 == aDestSize.getHeight() || aPrefSize.getHeight() + 1 == aDestSize.getHeight())) + { + aDestSize.setHeight(aPrefSize.getHeight()); + } + + // paint it + aMetaFile.WindStart(); + aMetaFile.Play(mpOutputDevice, aDestRectView.TopLeft(), aDestSize); + } + } + // mask group. Force output to VDev and create mask from given mask void VclProcessor2D::RenderMaskPrimitive2DPixel(const primitive2d::MaskPrimitive2D& rMaskCandidate) { |