| /** |
| * Copyright (C) 2003, 2006 Apple Computer, Inc. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "core/rendering/EllipsisBox.h" |
| |
| #include "core/platform/graphics/DrawLooper.h" |
| #include "core/platform/graphics/Font.h" |
| #include "core/platform/graphics/GraphicsContextStateSaver.h" |
| #include "core/platform/graphics/TextRun.h" |
| #include "core/rendering/HitTestResult.h" |
| #include "core/rendering/InlineTextBox.h" |
| #include "core/rendering/PaintInfo.h" |
| #include "core/rendering/RenderBlock.h" |
| #include "core/rendering/RootInlineBox.h" |
| #include "core/rendering/style/ShadowData.h" |
| |
| namespace WebCore { |
| |
| void EllipsisBox::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom) |
| { |
| GraphicsContext* context = paintInfo.context; |
| RenderStyle* style = m_renderer->style(isFirstLineStyle()); |
| Color styleTextColor = m_renderer->resolveColor(style, CSSPropertyWebkitTextFillColor); |
| if (styleTextColor != context->fillColor()) |
| context->setFillColor(styleTextColor); |
| |
| Color textColor = styleTextColor; |
| const Font& font = style->font(); |
| if (selectionState() != RenderObject::SelectionNone) { |
| paintSelection(context, paintOffset, style, font); |
| |
| // Select the correct color for painting the text. |
| Color foreground = paintInfo.forceBlackText() ? Color::black : renderer()->selectionForegroundColor(); |
| if (foreground.isValid() && foreground != styleTextColor) |
| context->setFillColor(foreground); |
| } |
| |
| // Text shadows are disabled when printing. http://crbug.com/258321 |
| const ShadowData* shadow = context->printing() ? 0 : style->textShadow(); |
| bool hasShadow = shadow; |
| if (hasShadow) { |
| DrawLooper drawLooper; |
| do { |
| int shadowX = isHorizontal() ? shadow->x() : shadow->y(); |
| int shadowY = isHorizontal() ? shadow->y() : -shadow->x(); |
| FloatSize offset(shadowX, shadowY); |
| drawLooper.addShadow(offset, shadow->blur(), m_renderer->resolveColor(shadow->color()), |
| DrawLooper::ShadowRespectsTransforms, DrawLooper::ShadowIgnoresAlpha); |
| } while ((shadow = shadow->next())); |
| drawLooper.addUnmodifiedContent(); |
| context->setDrawLooper(drawLooper); |
| } |
| |
| // FIXME: Why is this always LTR? Fix by passing correct text run flags below. |
| FloatPoint boxOrigin(paintOffset); |
| boxOrigin.move(x(), y()); |
| FloatRect boxRect(boxOrigin, LayoutSize(logicalWidth(), logicalHeight())); |
| FloatPoint textOrigin(boxOrigin.x(), boxOrigin.y() + style->fontMetrics().ascent()); |
| TextRun textRun = RenderBlock::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion); |
| TextRunPaintInfo textRunPaintInfo(textRun); |
| textRunPaintInfo.bounds = boxRect; |
| context->drawText(font, textRunPaintInfo, textOrigin); |
| |
| // Restore the regular fill color. |
| if (styleTextColor != context->fillColor()) |
| context->setFillColor(styleTextColor); |
| |
| if (hasShadow) |
| context->clearDrawLooper(); |
| |
| paintMarkupBox(paintInfo, paintOffset, lineTop, lineBottom, style); |
| } |
| |
| InlineBox* EllipsisBox::markupBox() const |
| { |
| if (!m_shouldPaintMarkupBox || !m_renderer->isRenderBlock()) |
| return 0; |
| |
| RenderBlock* block = toRenderBlock(m_renderer); |
| RootInlineBox* lastLine = block->lineAtIndex(block->lineCount() - 1); |
| if (!lastLine) |
| return 0; |
| |
| // If the last line-box on the last line of a block is a link, -webkit-line-clamp paints that box after the ellipsis. |
| // It does not actually move the link. |
| InlineBox* anchorBox = lastLine->lastChild(); |
| if (!anchorBox || !anchorBox->renderer()->style()->isLink()) |
| return 0; |
| |
| return anchorBox; |
| } |
| |
| void EllipsisBox::paintMarkupBox(PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, RenderStyle* style) |
| { |
| InlineBox* markupBox = this->markupBox(); |
| if (!markupBox) |
| return; |
| |
| LayoutPoint adjustedPaintOffset = paintOffset; |
| adjustedPaintOffset.move(x() + m_logicalWidth - markupBox->x(), |
| y() + style->fontMetrics().ascent() - (markupBox->y() + markupBox->renderer()->style(isFirstLineStyle())->fontMetrics().ascent())); |
| markupBox->paint(paintInfo, adjustedPaintOffset, lineTop, lineBottom); |
| } |
| |
| IntRect EllipsisBox::selectionRect() |
| { |
| RenderStyle* style = m_renderer->style(isFirstLineStyle()); |
| const Font& font = style->font(); |
| // FIXME: Why is this always LTR? Fix by passing correct text run flags below. |
| return enclosingIntRect(font.selectionRectForText(RenderBlock::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), IntPoint(x(), y() + root()->selectionTopAdjustedForPrecedingBlock()), root()->selectionHeightAdjustedForPrecedingBlock())); |
| } |
| |
| void EllipsisBox::paintSelection(GraphicsContext* context, const LayoutPoint& paintOffset, RenderStyle* style, const Font& font) |
| { |
| Color textColor = m_renderer->resolveColor(style, CSSPropertyColor); |
| Color c = m_renderer->selectionBackgroundColor(); |
| if (!c.isValid() || !c.alpha()) |
| return; |
| |
| // If the text color ends up being the same as the selection background, invert the selection |
| // background. |
| if (textColor == c) |
| c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue()); |
| |
| GraphicsContextStateSaver stateSaver(*context); |
| LayoutUnit top = root()->selectionTop(); |
| LayoutUnit h = root()->selectionHeight(); |
| FloatRect clipRect(x() + paintOffset.x(), top + paintOffset.y(), m_logicalWidth, h); |
| alignSelectionRectToDevicePixels(clipRect); |
| context->clip(clipRect); |
| // FIXME: Why is this always LTR? Fix by passing correct text run flags below. |
| context->drawHighlightForText(font, RenderBlock::constructTextRun(renderer(), font, m_str, style, TextRun::AllowTrailingExpansion), roundedIntPoint(LayoutPoint(x() + paintOffset.x(), y() + paintOffset.y() + top)), h, c); |
| } |
| |
| bool EllipsisBox::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom) |
| { |
| LayoutPoint adjustedLocation = accumulatedOffset + roundedLayoutPoint(topLeft()); |
| |
| // Hit test the markup box. |
| if (InlineBox* markupBox = this->markupBox()) { |
| RenderStyle* style = m_renderer->style(isFirstLineStyle()); |
| LayoutUnit mtx = adjustedLocation.x() + m_logicalWidth - markupBox->x(); |
| LayoutUnit mty = adjustedLocation.y() + style->fontMetrics().ascent() - (markupBox->y() + markupBox->renderer()->style(isFirstLineStyle())->fontMetrics().ascent()); |
| if (markupBox->nodeAtPoint(request, result, locationInContainer, LayoutPoint(mtx, mty), lineTop, lineBottom)) { |
| renderer()->updateHitTestResult(result, locationInContainer.point() - LayoutSize(mtx, mty)); |
| return true; |
| } |
| } |
| |
| LayoutRect boundsRect(adjustedLocation, LayoutSize(m_logicalWidth, m_height)); |
| if (visibleToHitTestRequest(request) && boundsRect.intersects(HitTestLocation::rectForPoint(locationInContainer.point(), 0, 0, 0, 0))) { |
| renderer()->updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation)); |
| if (!result.addNodeToRectBasedTestResult(renderer()->node(), request, locationInContainer, boundsRect)) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| } // namespace WebCore |