示例#1
0
static void closeLineEndingAndAdjustRuns(LineState& line, Layout::RunVector& runs, unsigned previousRunCount, unsigned& lineCount, const TextFragmentIterator& textFragmentIterator)
{
    if (previousRunCount == runs.size())
        return;
    ASSERT(runs.size());
    removeTrailingWhitespace(line, runs, textFragmentIterator);
    if (!runs.size())
        return;
    // Adjust runs' position by taking line's alignment into account.
    if (float lineLogicalLeft = computeLineLeft(textFragmentIterator.style().textAlign, line.availableWidth(), line.width(), line.logicalLeftOffset())) {
        for (unsigned i = previousRunCount; i < runs.size(); ++i) {
            runs[i].logicalLeft += lineLogicalLeft;
            runs[i].logicalRight += lineLogicalLeft;
        }
    }
    runs.last().isEndOfLine = true;
    ++lineCount;
}
示例#2
0
static void revertRuns(Layout::RunVector& runs, unsigned length, float width)
{
    while (length) {
        ASSERT(runs.size());
        Run& lastRun = runs.last();
        unsigned lastRunLength = lastRun.end - lastRun.start;
        if (lastRunLength > length) {
            lastRun.logicalRight -= width;
            lastRun.end -= length;
            break;
        }
        length -= lastRunLength;
        width -= (lastRun.logicalRight - lastRun.logicalLeft);
        runs.removeLast();
    }
}
示例#3
0
static void createTextRuns(Layout::RunVector& runs, RenderBlockFlow& flow, unsigned& lineCount)
{
    LayoutUnit borderAndPaddingBefore = flow.borderAndPaddingBefore();
    LayoutUnit lineHeight = lineHeightFromFlow(flow);
    LineState line;
    bool isEndOfContent = false;
    TextFragmentIterator textFragmentIterator = TextFragmentIterator(flow);
    do {
        flow.setLogicalHeight(lineHeight * lineCount + borderAndPaddingBefore);
        LineState previousLine = line;
        unsigned previousRunCount = runs.size();
        line = LineState();
        updateLineConstrains(flow, line, !lineCount);
        isEndOfContent = createLineRuns(line, previousLine, runs, textFragmentIterator);
        closeLineEndingAndAdjustRuns(line, runs, previousRunCount, lineCount, textFragmentIterator);
    } while (!isEndOfContent);
}