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From 2e5d1e032d353884a1f391d9e55ca1be3f7a0b9d Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
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Date: Tue, 14 Feb 2017 08:57:50 +0000
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Subject: [PATCH] Resolves: tdf#105998 distort hairline borders to fall inside
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the canvas
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if we are a hairline along the very right/bottom edge
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of the canvas then distory the polygon inwards one pixel right/bottom so that
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the hairline falls inside the paintable area and becomes visible
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Change-Id: Ie5713f6916cf5b47fdf14f86f034e38cda9900fd
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---
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.../source/processor2d/vclpixelprocessor2d.cxx | 21 +++++++++++++++++++++
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1 file changed, 21 insertions(+)
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diff --git a/drawinglayer/source/processor2d/vclpixelprocessor2d.cxx b/drawinglayer/source/processor2d/vclpixelprocessor2d.cxx
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index b8e9795..216be6b 100644
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--- a/drawinglayer/source/processor2d/vclpixelprocessor2d.cxx
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+++ b/drawinglayer/source/processor2d/vclpixelprocessor2d.cxx
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@@ -165,6 +165,27 @@ namespace drawinglayer
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return true;
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}
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+ //Resolves: tdf#105998 if we are a hairline along the very right/bottom edge
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+ //of the canvas then distory the polygon inwards one pixel right/bottom so that
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+ //the hairline falls inside the paintable area and becomes visible
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+ Size aSize = mpOutputDevice->GetOutputSize();
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+ basegfx::B2DRange aRange = aLocalPolygon.getB2DRange();
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+ basegfx::B2DRange aOutputRange = aRange;
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+ aOutputRange.transform(maCurrentTransformation);
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+ if (std::round(aOutputRange.getMaxX()) == aSize.Width() || std::round(aOutputRange.getMaxY()) == aSize.Height())
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+ {
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+ basegfx::B2DRange aOnePixel(0, 0, 1, 1);
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+ aOnePixel.transform(maCurrentTransformation);
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+ double fXOnePixel = 1.0 / aOnePixel.getMaxX();
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+ double fYOnePixel = 1.0 / aOnePixel.getMaxY();
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+
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+ basegfx::B2DPoint aTopLeft(aRange.getMinX(), aRange.getMinY());
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+ basegfx::B2DPoint aTopRight(aRange.getMaxX() - fXOnePixel, aRange.getMinY());
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+ basegfx::B2DPoint aBottomLeft(aRange.getMinX(), aRange.getMaxY() - fYOnePixel);
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+ basegfx::B2DPoint aBottomRight(aRange.getMaxX() - fXOnePixel, aRange.getMaxY() - fYOnePixel);
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+ aLocalPolygon = basegfx::tools::distort(aLocalPolygon, aRange, aTopLeft, aTopRight, aBottomLeft, aBottomRight);
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+ }
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+
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const basegfx::BColor aLineColor(maBColorModifierStack.getModifiedColor(rSource.getBColor()));
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mpOutputDevice->SetFillColor();
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--
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2.9.3
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