static FloatRect localQuadForTextBox(const InlineTextBox& box, unsigned start, unsigned end, bool useSelectionHeight) { unsigned realEnd = std::min(box.end() + 1, end); LayoutRect boxSelectionRect = box.localSelectionRect(start, realEnd); if (!boxSelectionRect.height()) return FloatRect(); if (useSelectionHeight) return boxSelectionRect; // Change the height and y position (or width and x for vertical text) // because selectionRect uses selection-specific values. if (box.isHorizontal()) { boxSelectionRect.setHeight(box.height()); boxSelectionRect.setY(box.y()); } else { boxSelectionRect.setWidth(box.width()); boxSelectionRect.setX(box.x()); } return boxSelectionRect; }
static int placePositionedBoxesHorizontally(InlineFlowBox* flow, int x, int& leftPosition, int& rightPosition, int& leftAlign, int& rightAlign, bool& needsWordSpacing, int xPos, bool positioned) { int mn = INT_MAX; int mx = INT_MIN; int amn = INT_MAX; int amx = INT_MIN; int startx = x; bool seenPositionedElement = false; flow->setXPos(x); for (InlineBox* curr = flow->firstChild(); curr; curr = curr->nextOnLine()) { if (curr->object()->isText()) { mn = min(mn, x); amn = min(amn, x); InlineTextBox* text = static_cast<InlineTextBox*>(curr); RenderText* rt = static_cast<RenderText*>(text->object()); if (rt->textLength()) { if (needsWordSpacing && DeprecatedChar(rt->characters()[text->start()]).isSpace()) x += rt->style(flow->isFirstLineStyle())->font().wordSpacing(); needsWordSpacing = !DeprecatedChar(rt->characters()[text->end()]).isSpace(); } text->setXPos(x); x += text->width(); mx = max(mx, x); amx = max(amx, x); } else if (curr->object()->isInlineFlow()) { InlineFlowBox* flow = static_cast<InlineFlowBox*>(curr); if (flow->object()->element()->hasTagName(aTag)) { x = placePositionedBoxesHorizontally(flow, x, mn, mx, amn, amx, needsWordSpacing, xPos, false); } else { SVGTextPositioningElement* text = static_cast<SVGTextPositioningElement*>(flow->object()->element()); x += (int)(text->dx()->getFirst().value()); if (text->x()->numberOfItems() > 0) x = (int)(text->x()->getFirst().value() - xPos); if (text->x()->numberOfItems() > 0 || text->y()->numberOfItems() > 0 || text->dx()->numberOfItems() > 0 || text->dy()->numberOfItems() > 0) { seenPositionedElement = true; needsWordSpacing = false; int ignoreX, ignoreY; x = placePositionedBoxesHorizontally(flow, x, mn, mx, ignoreX, ignoreY, needsWordSpacing, xPos, true); } else if (seenPositionedElement) { int ignoreX, ignoreY; x = placePositionedBoxesHorizontally(flow, x, mn, mx, ignoreX, ignoreY, needsWordSpacing, xPos, false); } else x = placePositionedBoxesHorizontally(flow, x, mn, mx, amn, amx, needsWordSpacing, xPos, false); } } } if (mn > mx) mn = mx = startx; if (amn > amx) amn = amx = startx; int width = mx - mn; flow->setWidth(width); int awidth = amx - amn; int dx = 0; if (positioned) { switch (flow->object()->style()->svgStyle()->textAnchor()) { case TA_MIDDLE: translateBox(flow, dx = -awidth / 2, 0, true); break; case TA_END: translateBox(flow, dx = -awidth, 0, true); break; case TA_START: default: break; } if (dx) { x += dx; mn += dx; mx += dx; } } leftPosition = min(leftPosition, mn); rightPosition = max(rightPosition, mx); leftAlign = min(leftAlign, amn); rightAlign = max(rightAlign, amx); return x; }