void InlineTextBox::paintTextMatchMarker(GraphicsContext* pt, int tx, int ty, DocumentMarker marker, RenderStyle* style, const Font* f)
{
// Use same y positioning and height as for selection, so that when the selection and this highlight are on
// the same word there are no pieces sticking out.
int y = selectionTop();
int h = selectionHeight();
int sPos = max(marker.startOffset - m_start, (unsigned)0);
int ePos = min(marker.endOffset - m_start, (unsigned)m_len);
TextRun run(textObject()->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride || style->visuallyOrdered());
IntPoint startPoint = IntPoint(m_x + tx, y + ty);
// Always compute and store the rect associated with this marker
IntRect markerRect = enclosingIntRect(f->selectionRectForText(run, startPoint, h, sPos, ePos));
object()->document()->setRenderedRectForMarker(object()->node(), marker, markerRect);
// Optionally highlight the text
if (object()->document()->frame()->markedTextMatchesAreHighlighted()) {
Color color = theme()->platformTextSearchHighlightColor();
pt->save();
updateGraphicsContext(pt, color, color, 0); // Don't draw text at all!
pt->clip(IntRect(tx + m_x, ty + y, m_width, h));
pt->drawHighlightForText(run, startPoint, h, color, sPos, ePos);
pt->restore();
}
}
void InlineTextBox::paintSelection(GraphicsContext* context, int tx, int ty, RenderStyle* style, const Font*)
{
// See if we have a selection to paint at all.
int sPos, ePos;
selectionStartEnd(sPos, ePos);
if (sPos >= ePos)
return;
Color textColor = style->color();
Color c = object()->selectionBackgroundColor();
if (!c.isValid() || c.alpha() == 0)
return;
// If the text color ends up being the same as the selection background, invert the selection
// background. This should basically never happen, since the selection has transparency.
if (textColor == c)
c = Color(0xff - c.red(), 0xff - c.green(), 0xff - c.blue());
context->save();
updateGraphicsContext(context, c, c, 0); // Don't draw text at all!
int y = selectionTop();
int h = selectionHeight();
context->clip(IntRect(m_x + tx, y + ty, m_width, h));
context->drawHighlightForText(TextRun(textObject()->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride || style->visuallyOrdered()),
IntPoint(m_x + tx, y + ty), h, c, sPos, ePos);
context->restore();
}
void RootInlineBox::addHighlightOverflow()
{
// Highlight acts as a selection inflation.
FloatRect rootRect(0, selectionTop(), width(), selectionHeight());
IntRect inflatedRect = enclosingIntRect(object()->document()->frame()->customHighlightLineRect(object()->style()->highlight(), rootRect));
m_leftOverflow = min(m_leftOverflow, inflatedRect.x());
m_rightOverflow = max(m_rightOverflow, inflatedRect.right());
m_topOverflow = min(m_topOverflow, inflatedRect.y());
m_bottomOverflow = max(m_bottomOverflow, inflatedRect.bottom());
}
void RootInlineBox::paintCustomHighlight(RenderObject::PaintInfo& paintInfo, int tx, int ty, const AtomicString& highlightType)
{
if (!object()->shouldPaintWithinRoot(paintInfo) || object()->style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseForeground)
return;
// Get the inflated rect so that we can properly hit test.
FloatRect rootRect(tx + xPos(), ty + selectionTop(), width(), selectionHeight());
FloatRect inflatedRect = object()->document()->frame()->customHighlightLineRect(highlightType, rootRect);
if (inflatedRect.intersects(paintInfo.rect))
object()->document()->frame()->paintCustomHighlight(highlightType, rootRect, rootRect, false, true);
}
IntRect RootInlineBox::computeCaretRect(float logicalLeftPosition, unsigned caretWidth, LayoutUnit* extraWidthToEndOfLine) const
{
int height = selectionHeight();
int top = selectionTop();
// Distribute the caret's width to either side of the offset.
float left = logicalLeftPosition;
int caretWidthLeftOfOffset = caretWidth / 2;
left -= caretWidthLeftOfOffset;
int caretWidthRightOfOffset = caretWidth - caretWidthLeftOfOffset;
left = roundf(left);
float rootLeft = logicalLeft();
float rootRight = logicalRight();
if (extraWidthToEndOfLine)
*extraWidthToEndOfLine = (logicalWidth() + rootLeft) - (left + caretWidth);
const RenderStyle& blockStyle = blockFlow().style();
bool rightAligned = false;
switch (blockStyle.textAlign()) {
case RIGHT:
case WEBKIT_RIGHT:
rightAligned = true;
break;
case LEFT:
case WEBKIT_LEFT:
case CENTER:
case WEBKIT_CENTER:
break;
case JUSTIFY:
case TASTART:
rightAligned = !blockStyle.isLeftToRightDirection();
break;
case TAEND:
rightAligned = blockStyle.isLeftToRightDirection();
break;
}
float leftEdge = std::min<float>(0, rootLeft);
float rightEdge = std::max<float>(blockFlow().logicalWidth(), rootRight);
if (rightAligned) {
left = std::max(left, leftEdge);
left = std::min(left, rootRight - caretWidth);
} else {
left = std::min(left, rightEdge - caretWidthRightOfOffset);
left = std::max(left, rootLeft);
}
return blockStyle.isHorizontalWritingMode() ? IntRect(left, top, caretWidth, height) : IntRect(top, left, height, caretWidth);
}
void RootInlineBox::addHighlightOverflow()
{
Frame* frame = renderer()->document()->frame();
if (!frame)
return;
Page* page = frame->page();
if (!page)
return;
// Highlight acts as a selection inflation.
FloatRect rootRect(0, selectionTop(), width(), selectionHeight());
IntRect inflatedRect = enclosingIntRect(page->chrome()->client()->customHighlightRect(renderer()->node(), renderer()->style()->highlight(), rootRect));
setHorizontalOverflowPositions(leftLayoutOverflow(), rightLayoutOverflow(), min(leftVisualOverflow(), inflatedRect.x()), max(rightVisualOverflow(), inflatedRect.right()));
setVerticalOverflowPositions(topLayoutOverflow(), bottomLayoutOverflow(), min(topVisualOverflow(), inflatedRect.y()), max(bottomVisualOverflow(), inflatedRect.bottom()), height());
}
void InlineTextBox::paintCustomHighlight(int tx, int ty, const AtomicString& type)
{
Frame* frame = object()->document()->frame();
if (!frame)
return;
Page* page = frame->page();
if (!page)
return;
RootInlineBox* r = root();
FloatRect rootRect(tx + r->xPos(), ty + selectionTop(), r->width(), selectionHeight());
FloatRect textRect(tx + xPos(), rootRect.y(), width(), rootRect.height());
page->chrome()->client()->paintCustomHighlight(object()->node(), type, textRect, rootRect, true, false);
}
void RootInlineBox::paintCustomHighlight(RenderObject::PaintInfo& paintInfo, int tx, int ty, const AtomicString& highlightType)
{
if (!renderer()->shouldPaintWithinRoot(paintInfo) || renderer()->style()->visibility() != VISIBLE || paintInfo.phase != PaintPhaseForeground)
return;
Frame* frame = renderer()->document()->frame();
if (!frame)
return;
Page* page = frame->page();
if (!page)
return;
// Get the inflated rect so that we can properly hit test.
FloatRect rootRect(tx + x(), ty + selectionTop(), width(), selectionHeight());
FloatRect inflatedRect = page->chrome()->client()->customHighlightRect(renderer()->node(), highlightType, rootRect);
if (inflatedRect.intersects(paintInfo.rect))
page->chrome()->client()->paintCustomHighlight(renderer()->node(), highlightType, rootRect, rootRect, false, true);
}
IntRect InlineTextBox::selectionRect(int tx, int ty, int startPos, int endPos)
{
int sPos = max(startPos - m_start, 0);
int ePos = min(endPos - m_start, (int)m_len);
if (sPos >= ePos)
return IntRect();
RenderText* textObj = textObject();
int selTop = selectionTop();
int selHeight = selectionHeight();
const Font& f = textObj->style(m_firstLine)->font();
IntRect r = enclosingIntRect(f.selectionRectForText(TextRun(textObj->text()->characters() + m_start, m_len, textObj->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride),
IntPoint(tx + m_x, ty + selTop), selHeight, sPos, ePos));
if (r.x() > tx + m_x + m_width)
r.setWidth(0);
else if (r.right() - 1 > tx + m_x + m_width)
r.setWidth(tx + m_x + m_width - r.x());
return r;
}
void InlineTextBox::paintCompositionBackground(GraphicsContext* context, int tx, int ty, RenderStyle* style, const Font*, int startPos, int endPos)
{
int offset = m_start;
int sPos = max(startPos - offset, 0);
int ePos = min(endPos - offset, (int)m_len);
if (sPos >= ePos)
return;
context->save();
Color c = Color(225, 221, 85);
updateGraphicsContext(context, c, c, 0); // Don't draw text at all!
int y = selectionTop();
int h = selectionHeight();
context->drawHighlightForText(TextRun(textObject()->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride || style->visuallyOrdered()),
IntPoint(m_x + tx, y + ty), h, c, sPos, ePos);
context->restore();
}
void InlineTextBox::paintSpellingOrGrammarMarker(GraphicsContext* pt, int tx, int ty, DocumentMarker marker, RenderStyle* style, const Font* f, bool grammar)
{
// Never print spelling/grammar markers (5327887)
if (textObject()->document()->printing())
return;
if (m_truncation == cFullTruncation)
return;
int start = 0; // start of line to draw, relative to tx
int width = m_width; // how much line to draw
// Determine whether we need to measure text
bool markerSpansWholeBox = true;
if (m_start <= (int)marker.startOffset)
markerSpansWholeBox = false;
if ((end() + 1) != marker.endOffset) // end points at the last char, not past it
markerSpansWholeBox = false;
if (m_truncation != cNoTruncation)
markerSpansWholeBox = false;
if (!markerSpansWholeBox || grammar) {
int startPosition = max<int>(marker.startOffset - m_start, 0);
int endPosition = min<int>(marker.endOffset - m_start, m_len);
if (m_truncation != cNoTruncation)
endPosition = min<int>(endPosition, m_truncation);
// Calculate start & width
IntPoint startPoint(tx + m_x, ty + selectionTop());
TextRun run(textObject()->text()->characters() + m_start, m_len, textObject()->allowTabs(), textPos(), m_toAdd, direction() == RTL, m_dirOverride || style->visuallyOrdered());
int h = selectionHeight();
IntRect markerRect = enclosingIntRect(f->selectionRectForText(run, startPoint, h, startPosition, endPosition));
start = markerRect.x() - startPoint.x();
width = markerRect.width();
// Store rendered rects for bad grammar markers, so we can hit-test against it elsewhere in order to
// display a toolTip. We don't do this for misspelling markers.
if (grammar)
object()->document()->setRenderedRectForMarker(object()->node(), marker, markerRect);
}
// IMPORTANT: The misspelling underline is not considered when calculating the text bounds, so we have to
// make sure to fit within those bounds. This means the top pixel(s) of the underline will overlap the
// bottom pixel(s) of the glyphs in smaller font sizes. The alternatives are to increase the line spacing (bad!!)
// or decrease the underline thickness. The overlap is actually the most useful, and matches what AppKit does.
// So, we generally place the underline at the bottom of the text, but in larger fonts that's not so good so
// we pin to two pixels under the baseline.
int lineThickness = cMisspellingLineThickness;
int descent = m_height - m_baseline;
int underlineOffset;
if (descent <= (2 + lineThickness)) {
// place the underline at the very bottom of the text in small/medium fonts
underlineOffset = m_height - lineThickness;
} else {
// in larger fonts, tho, place the underline up near the baseline to prevent big gap
underlineOffset = m_baseline + 2;
}
pt->drawLineForMisspellingOrBadGrammar(IntPoint(tx + m_x + start, ty + m_y + underlineOffset), width, grammar);
}