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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "config.h" |
| 6 #include "core/paint/DetailsMarkerPainter.h" |
| 7 |
| 8 #include "core/paint/BlockPainter.h" |
| 9 #include "core/rendering/PaintInfo.h" |
| 10 #include "core/rendering/RenderDetailsMarker.h" |
| 11 #include "platform/geometry/LayoutPoint.h" |
| 12 #include "platform/graphics/Path.h" |
| 13 |
| 14 namespace blink { |
| 15 |
| 16 void DetailsMarkerPainter::paint(PaintInfo& paintInfo, const LayoutPoint& paintO
ffset) |
| 17 { |
| 18 if (paintInfo.phase != PaintPhaseForeground || m_renderDetailsMarker.style()
->visibility() != VISIBLE) { |
| 19 BlockPainter(m_renderDetailsMarker).paint(paintInfo, paintOffset); |
| 20 return; |
| 21 } |
| 22 |
| 23 LayoutPoint boxOrigin(paintOffset + m_renderDetailsMarker.location()); |
| 24 LayoutRect overflowRect(m_renderDetailsMarker.visualOverflowRect()); |
| 25 overflowRect.moveBy(boxOrigin); |
| 26 |
| 27 if (!paintInfo.rect.intersects(pixelSnappedIntRect(overflowRect))) |
| 28 return; |
| 29 |
| 30 const Color color(m_renderDetailsMarker.resolveColor(CSSPropertyColor)); |
| 31 paintInfo.context->setStrokeColor(color); |
| 32 paintInfo.context->setStrokeStyle(SolidStroke); |
| 33 paintInfo.context->setStrokeThickness(1.0f); |
| 34 paintInfo.context->setFillColor(color); |
| 35 |
| 36 boxOrigin.move(m_renderDetailsMarker.borderLeft() + m_renderDetailsMarker.pa
ddingLeft(), m_renderDetailsMarker.borderTop() + m_renderDetailsMarker.paddingTo
p()); |
| 37 paintInfo.context->fillPath(getPath(boxOrigin)); |
| 38 } |
| 39 |
| 40 static Path createPath(const FloatPoint* path) |
| 41 { |
| 42 Path result; |
| 43 result.moveTo(FloatPoint(path[0].x(), path[0].y())); |
| 44 for (int i = 1; i < 4; ++i) |
| 45 result.addLineTo(FloatPoint(path[i].x(), path[i].y())); |
| 46 return result; |
| 47 } |
| 48 |
| 49 static Path createDownArrowPath() |
| 50 { |
| 51 FloatPoint points[4] = { FloatPoint(0.0f, 0.07f), FloatPoint(0.5f, 0.93f), F
loatPoint(1.0f, 0.07f), FloatPoint(0.0f, 0.07f) }; |
| 52 return createPath(points); |
| 53 } |
| 54 |
| 55 static Path createUpArrowPath() |
| 56 { |
| 57 FloatPoint points[4] = { FloatPoint(0.0f, 0.93f), FloatPoint(0.5f, 0.07f), F
loatPoint(1.0f, 0.93f), FloatPoint(0.0f, 0.93f) }; |
| 58 return createPath(points); |
| 59 } |
| 60 |
| 61 static Path createLeftArrowPath() |
| 62 { |
| 63 FloatPoint points[4] = { FloatPoint(1.0f, 0.0f), FloatPoint(0.14f, 0.5f), Fl
oatPoint(1.0f, 1.0f), FloatPoint(1.0f, 0.0f) }; |
| 64 return createPath(points); |
| 65 } |
| 66 |
| 67 static Path createRightArrowPath() |
| 68 { |
| 69 FloatPoint points[4] = { FloatPoint(0.0f, 0.0f), FloatPoint(0.86f, 0.5f), Fl
oatPoint(0.0f, 1.0f), FloatPoint(0.0f, 0.0f) }; |
| 70 return createPath(points); |
| 71 } |
| 72 |
| 73 Path DetailsMarkerPainter::getCanonicalPath() const |
| 74 { |
| 75 switch (m_renderDetailsMarker.orientation()) { |
| 76 case RenderDetailsMarker::Left: return createLeftArrowPath(); |
| 77 case RenderDetailsMarker::Right: return createRightArrowPath(); |
| 78 case RenderDetailsMarker::Up: return createUpArrowPath(); |
| 79 case RenderDetailsMarker::Down: return createDownArrowPath(); |
| 80 } |
| 81 |
| 82 return Path(); |
| 83 } |
| 84 |
| 85 Path DetailsMarkerPainter::getPath(const LayoutPoint& origin) const |
| 86 { |
| 87 Path result = getCanonicalPath(); |
| 88 result.transform(AffineTransform().scale(m_renderDetailsMarker.contentWidth(
).toFloat(), m_renderDetailsMarker.contentHeight().toFloat())); |
| 89 result.translate(FloatSize(origin.x().toFloat(), origin.y().toFloat())); |
| 90 return result; |
| 91 } |
| 92 |
| 93 } // namespace paint |
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