void MultiColumnFragmentainerGroup::columnIntervalForVisualRect(
const LayoutRect& rect,
unsigned& firstColumn,
unsigned& lastColumn) const {
bool isColumnProgressionInline =
m_columnSet.multiColumnFlowThread()->progressionIsInline();
bool isFlippedColumnProgression =
!m_columnSet.style()->isLeftToRightDirection() &&
isColumnProgressionInline;
if (m_columnSet.isHorizontalWritingMode() == isColumnProgressionInline) {
if (isFlippedColumnProgression) {
firstColumn = columnIndexAtVisualPoint(rect.maxXMinYCorner());
lastColumn = columnIndexAtVisualPoint(rect.minXMinYCorner());
} else {
firstColumn = columnIndexAtVisualPoint(rect.minXMinYCorner());
lastColumn = columnIndexAtVisualPoint(rect.maxXMinYCorner());
}
} else {
if (isFlippedColumnProgression) {
firstColumn = columnIndexAtVisualPoint(rect.minXMaxYCorner());
lastColumn = columnIndexAtVisualPoint(rect.minXMinYCorner());
} else {
firstColumn = columnIndexAtVisualPoint(rect.minXMinYCorner());
lastColumn = columnIndexAtVisualPoint(rect.minXMaxYCorner());
}
}
ASSERT(firstColumn <= lastColumn);
}
FloatRect encloseRectToDevicePixels(const LayoutRect& rect, float pixelSnappingFactor)
{
FloatPoint location = floorPointToDevicePixels(rect.minXMinYCorner(), pixelSnappingFactor);
FloatPoint maxPoint = ceilPointToDevicePixels(rect.maxXMaxYCorner(), pixelSnappingFactor);
return FloatRect(location, maxPoint - location);
}
IntRect enclosingIntRect(const LayoutRect& rect)
{
IntPoint location = flooredIntPoint(rect.minXMinYCorner());
IntPoint maxPoint = ceiledIntPoint(rect.maxXMaxYCorner());
return IntRect(location, maxPoint - location);
}
IntRect enclosingIntRect(const LayoutRect& rect)
{
// Empty rects with fractional x, y values turn into non-empty rects when converting to enclosing.
// We need to ensure that empty rects stay empty after the conversion, because the selection code expects them to be empty.
IntPoint location = flooredIntPoint(rect.minXMinYCorner());
IntPoint maxPoint = IntPoint(rect.width() ? rect.maxX().ceil() : location.x(), rect.height() ? rect.maxY().ceil() : location.y());
return IntRect(location, maxPoint - location);
}
static LayoutPoint cornerPointOfRect(LayoutRect rect, Corner whichCorner) {
switch (whichCorner) {
case Corner::TopLeft:
return rect.minXMinYCorner();
case Corner::TopRight:
return rect.maxXMinYCorner();
}
ASSERT_NOT_REACHED();
return LayoutPoint();
}
void RenderMathMLOperator::paint(PaintInfo& info, const LayoutPoint& paintOffset)
{
RenderMathMLBlock::paint(info, paintOffset);
if (info.context->paintingDisabled() || info.phase != PaintPhaseForeground)
return;
if (!m_isStretched && !m_stretchyCharacter) {
RenderMathMLBlock::paint(info, paintOffset);
return;
}
GraphicsContextStateSaver stateSaver(*info.context);
info.context->setFillColor(style()->visitedDependentColor(CSSPropertyColor), style()->colorSpace());
ASSERT(m_stretchyCharacter->topGlyph);
ASSERT(m_stretchyCharacter->bottomGlyph);
// We are positioning the glyphs so that the edge of the tight glyph bounds line up exactly with the edges of our paint box.
LayoutPoint operatorTopLeft = ceiledIntPoint(paintOffset + location());
FloatRect topGlyphBounds = glyphBoundsForCharacter(m_stretchyCharacter->topGlyph);
LayoutPoint topGlyphOrigin(operatorTopLeft.x(), operatorTopLeft.y() - topGlyphBounds.y());
LayoutRect topGlyphPaintRect = paintCharacter(info, m_stretchyCharacter->topGlyph, topGlyphOrigin, TrimBottom);
FloatRect bottomGlyphBounds = glyphBoundsForCharacter(m_stretchyCharacter->bottomGlyph);
LayoutPoint bottomGlyphOrigin(operatorTopLeft.x(), operatorTopLeft.y() + offsetHeight() - (bottomGlyphBounds.height() + bottomGlyphBounds.y()));
LayoutRect bottomGlyphPaintRect = paintCharacter(info, m_stretchyCharacter->bottomGlyph, bottomGlyphOrigin, TrimTop);
if (m_stretchyCharacter->middleGlyph) {
// Center the glyph origin between the start and end glyph paint extents. Then shift it half the paint height toward the bottom glyph.
FloatRect middleGlyphBounds = glyphBoundsForCharacter(m_stretchyCharacter->middleGlyph);
LayoutPoint middleGlyphOrigin(operatorTopLeft.x(), topGlyphOrigin.y() + y());
middleGlyphOrigin.moveBy(LayoutPoint(0, (bottomGlyphPaintRect.y() - topGlyphPaintRect.maxY()) / 2.0));
middleGlyphOrigin.moveBy(LayoutPoint(0, middleGlyphBounds.height() / 2.0));
LayoutRect middleGlyphPaintRect = paintCharacter(info, m_stretchyCharacter->middleGlyph, middleGlyphOrigin, TrimTopAndBottom);
fillWithExtensionGlyph(info, topGlyphPaintRect.minXMaxYCorner(), middleGlyphPaintRect.minXMinYCorner());
fillWithExtensionGlyph(info, middleGlyphPaintRect.minXMaxYCorner(), bottomGlyphPaintRect.minXMinYCorner());
} else
fillWithExtensionGlyph(info, topGlyphPaintRect.minXMaxYCorner(), bottomGlyphPaintRect.minXMinYCorner());
}
void RenderedPosition::positionInGraphicsLayerBacking(CompositedSelectionBound& bound) const
{
bound.layer = nullptr;
bound.edgeTopInLayer = bound.edgeBottomInLayer = FloatPoint();
if (isNull())
return;
LayoutRect rect = m_layoutObject->localCaretRect(m_inlineBox, m_offset);
PaintLayer* layer = nullptr;
bound.edgeTopInLayer = m_layoutObject->localToInvalidationBackingPoint(rect.minXMinYCorner(), &layer);
bound.edgeBottomInLayer = m_layoutObject->localToInvalidationBackingPoint(rect.minXMaxYCorner(), nullptr);
bound.layer = layer ? layer->graphicsLayerBacking() : nullptr;
}
