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.
6 #include "core/paint/EllipsisBoxPainter.h"
8 #include "core/rendering/EllipsisBox.h"
9 #include "core/rendering/InlineTextBox.h"
10 #include "core/rendering/PaintInfo.h"
11 #include "core/rendering/RootInlineBox.h"
12 #include "core/rendering/TextPainter.h"
13 #include "core/rendering/TextRunConstructor.h"
14 #include "platform/graphics/GraphicsContextStateSaver.h"
18 void EllipsisBoxPainter::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
20 GraphicsContext* context = paintInfo.context;
21 RenderStyle* style = m_ellipsisBox.renderer().style(m_ellipsisBox.isFirstLineStyle());
22 const Font& font = style->font();
23 FloatPoint boxOrigin = m_ellipsisBox.locationIncludingFlipping();
24 boxOrigin.moveBy(FloatPoint(paintOffset));
25 if (!m_ellipsisBox.isHorizontal())
26 boxOrigin.move(0, -m_ellipsisBox.virtualLogicalHeight());
27 FloatRect boxRect(boxOrigin, LayoutSize(m_ellipsisBox.logicalWidth(), m_ellipsisBox.virtualLogicalHeight()));
28 GraphicsContextStateSaver stateSaver(*context);
29 if (!m_ellipsisBox.isHorizontal())
30 context->concatCTM(InlineTextBox::rotation(boxRect, InlineTextBox::Clockwise));
31 FloatPoint textOrigin(boxOrigin.x(), boxOrigin.y() + font.fontMetrics().ascent());
33 bool isPrinting = m_ellipsisBox.renderer().document().printing();
34 bool haveSelection = !isPrinting && paintInfo.phase != PaintPhaseTextClip && m_ellipsisBox.selectionState() != RenderObject::SelectionNone;
37 paintSelection(context, boxOrigin, style, font);
38 else if (paintInfo.phase == PaintPhaseSelection)
41 TextPainter::Style textStyle = TextPainter::textPaintingStyle(m_ellipsisBox.renderer(), style, paintInfo.forceBlackText(), isPrinting);
43 textStyle = TextPainter::selectionPaintingStyle(m_ellipsisBox.renderer(), true, paintInfo.forceBlackText(), isPrinting, textStyle);
45 TextRun textRun = constructTextRun(&m_ellipsisBox.renderer(), font, m_ellipsisBox.ellipsisStr(), style, TextRun::AllowTrailingExpansion);
46 TextPainter textPainter(context, font, textRun, textOrigin, boxRect, m_ellipsisBox.isHorizontal());
47 textPainter.paint(0, m_ellipsisBox.ellipsisStr().length(), m_ellipsisBox.ellipsisStr().length(), textStyle);
49 paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style);
52 void EllipsisBoxPainter::paintMarkupBox(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, RenderStyle* style)
54 InlineBox* markupBox = m_ellipsisBox.markupBox();
58 LayoutPoint adjustedPaintOffset = paintOffset;
59 adjustedPaintOffset.move(m_ellipsisBox.x() + m_ellipsisBox.logicalWidth() - markupBox->x(),
60 m_ellipsisBox.y() + style->fontMetrics().ascent() - (markupBox->y() + markupBox->renderer().style(m_ellipsisBox.isFirstLineStyle())->fontMetrics().ascent()));
61 markupBox->paint(paintInfo, adjustedPaintOffset, lineTop, lineBottom);
64 void EllipsisBoxPainter::paintSelection(GraphicsContext* context, const FloatPoint& boxOrigin, RenderStyle* style, const Font& font)
66 Color textColor = m_ellipsisBox.renderer().resolveColor(style, CSSPropertyColor);
67 Color c = m_ellipsisBox.renderer().selectionBackgroundColor();
71 // If the text color ends up being the same as the selection background, invert the selection
74 c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());
76 GraphicsContextStateSaver stateSaver(*context);
77 LayoutUnit selectionBottom = m_ellipsisBox.root().selectionBottom();
78 LayoutUnit top = m_ellipsisBox.root().selectionTop();
79 LayoutUnit h = m_ellipsisBox.root().selectionHeight();
80 const int deltaY = roundToInt(m_ellipsisBox.renderer().style()->isFlippedLinesWritingMode() ? selectionBottom - m_ellipsisBox.logicalBottom() : m_ellipsisBox.logicalTop() - top);
81 const FloatPoint localOrigin(boxOrigin.x(), boxOrigin.y() - deltaY);
82 FloatRect clipRect(localOrigin, FloatSize(m_ellipsisBox.logicalWidth(), h.toFloat()));
83 context->clip(clipRect);
84 context->drawHighlightForText(font, constructTextRun(&m_ellipsisBox.renderer(), font, m_ellipsisBox.ellipsisStr(), style, TextRun::AllowTrailingExpansion), localOrigin, h, c);