static void calculateBoundingRect( QTextDocument *document, int startPosition, int endPosition, QRectF &rect ) { const QTextBlock startBlock = document->findBlock( startPosition ); const QRectF startBoundingRect = document->documentLayout()->blockBoundingRect( startBlock ); const QTextBlock endBlock = document->findBlock( endPosition ); const QRectF endBoundingRect = document->documentLayout()->blockBoundingRect( endBlock ); QTextLayout *startLayout = startBlock.layout(); QTextLayout *endLayout = endBlock.layout(); int startPos = startPosition - startBlock.position(); int endPos = endPosition - endBlock.position(); const QTextLine startLine = startLayout->lineForTextPosition( startPos ); const QTextLine endLine = endLayout->lineForTextPosition( endPos ); double x = startBoundingRect.x() + startLine.cursorToX( startPos ); double y = startBoundingRect.y() + startLine.y(); double r = endBoundingRect.x() + endLine.cursorToX( endPos ); double b = endBoundingRect.y() + endLine.y() + endLine.height(); const QSizeF size = document->size(); rect = QRectF( x / size.width(), y / size.height(), (r - x) / size.width(), (b - y) / size.height() ); }
void MainWindow::UpdateStatusBar() { int col = m_ui->txtedit->textCursor().positionInBlock(); QTextLayout * pLayout = m_ui->txtedit->textCursor().block().layout(); int nCurpos = m_ui->txtedit->textCursor().position() - m_ui->txtedit->textCursor().block().position(); int line = pLayout->lineForTextPosition(nCurpos).lineNumber() + m_ui->txtedit->textCursor().block().firstLineNumber() + 1; QString title = "fake ide "; title += QFileInfo(m_file_name).fileName(); if (m_saved != m_ui->txtedit->toPlainText()) { title += " *"; } setWindowTitle(title); char buff[1024]; sprintf(buff, "line %d, col %d, total %d", line, col, m_ui->txtedit->toPlainText().size()); QString msg = buff; m_ui->statusBar->showMessage(msg); }
void History::on_plainTextEdit_cursorPositionChanged() { if(!plainTextEdit->toPlainText().isEmpty()) { QList<QTextEdit::ExtraSelection> extraSelections; QTextEdit::ExtraSelection selection; QColor lineColor = QColor(0,0,170).lighter(160); selection.format.setBackground(lineColor); selection.format.setProperty(QTextFormat::FullWidthSelection, true); selection.cursor =plainTextEdit->textCursor(); selection.cursor.clearSelection(); extraSelections.append(selection); //暂时标记指定的文档中的一部分,用指定的颜色 plainTextEdit->setExtraSelections(extraSelections); usePushButton->setEnabled(true); deletePushButton->setEnabled(true); copyPushButton->setEnabled(true); clearPushButton->setEnabled(true); //获取光标所在行数 QTextCursor tc = plainTextEdit->textCursor(); QTextLayout* lo = tc.block().layout(); int pos = tc.positionInBlock(); int rowIndex = lo->lineForTextPosition(pos).lineNumber() + tc.block().firstLineNumber(); lineEdit->setText(plainTextEdit->document()->findBlockByLineNumber(rowIndex).text()); //plainTextEdit->document()->findBlockByLineNumber(rowIndex).text() 获取指定行的内容 } else { usePushButton->setEnabled(false); deletePushButton->setEnabled(false); copyPushButton->setEnabled(false); clearPushButton->setEnabled(false); lineEdit->clear(); } }
void TestDocumentLayout::placeAnchoredFrame2() { QFETCH(int, horizontalAlignment); QFETCH(int, verticalAlignment); QFETCH(QPointF, startPosition); QFETCH(QPointF, imagePosition); initForNewTest(QString(loremIpsum)); MockShape *picture = new MockShape(); picture->setSize(QSizeF(198, 400)); KTextAnchor *anchor = new KTextAnchor(picture); anchor->setAlignment(KTextAnchor::AnchorHorizontal(horizontalAlignment)); anchor->setAlignment(KTextAnchor::AnchorVertical(verticalAlignment)); picture->setPosition(startPosition); QTextCursor cursor(doc); KInlineTextObjectManager *manager = new KInlineTextObjectManager(); layout->setInlineTextObjectManager(manager); MockLayoutState *state = new MockLayoutState(doc); layout->setLayout(state); state->shape = shape1; manager->insertInlineObject(cursor, anchor); QCOMPARE(cursor.position(), 1); layout->layout(); QCOMPARE(picture->parent(), shape1); QCOMPARE(picture->position(), imagePosition); // test if rest of text is below picture. QTextLayout *lay = doc->begin().layout(); QVERIFY(lay->lineCount() >= 1); QTextLine line = lay->lineForTextPosition(1); // the first char of real text. QVERIFY(line.isValid()); // qDebug() << line.y() << line.height(); QVERIFY(line.y() + line.height() >= 412); // test that text is below image }
QPainterPath TextEditorOverlay::createSelectionPath(const QTextCursor &begin, const QTextCursor &end, const QRect &clip) { if (begin.isNull() || end.isNull() || begin.position() > end.position()) return QPainterPath(); QPointF offset = m_editor->contentOffset(); QRect viewportRect = rect(); QTextDocument *document = m_editor->document(); if (m_editor->blockBoundingGeometry(begin.block()).translated(offset).top() > clip.bottom() + 10 || m_editor->blockBoundingGeometry(end.block()).translated(offset).bottom() < clip.top() - 10 ) return QPainterPath(); // nothing of the selection is visible QTextBlock block = begin.block(); if (block.blockNumber() < m_editor->firstVisibleBlock().blockNumber() - 4) block = m_editor->document()->findBlockByNumber(m_editor->firstVisibleBlock().blockNumber() - 4); bool inSelection = false; QVector<QRectF> selection; if (begin.position() == end.position()) { // special case empty selections const QRectF blockGeometry = m_editor->blockBoundingGeometry(block); QTextLayout *blockLayout = block.layout(); int pos = begin.position() - begin.block().position(); QTextLine line = blockLayout->lineForTextPosition(pos); QRectF lineRect = line.naturalTextRect(); int x = line.cursorToX(pos); lineRect.setLeft(x - m_borderWidth); lineRect.setRight(x + m_borderWidth); selection += lineRect.translated(blockGeometry.topLeft()); } else { for (; block.isValid() && block.blockNumber() <= end.blockNumber(); block = block.next()) { if (! block.isVisible()) continue; const QRectF blockGeometry = m_editor->blockBoundingGeometry(block); QTextLayout *blockLayout = block.layout(); QTextLine line = blockLayout->lineAt(0); bool firstOrLastBlock = false; int beginChar = 0; if (!inSelection) { if (block == begin.block()) { beginChar = begin.positionInBlock(); line = blockLayout->lineForTextPosition(beginChar); firstOrLastBlock = true; } inSelection = true; } else { // while (beginChar < block.length() && document->characterAt(block.position() + beginChar).isSpace()) // ++beginChar; // if (beginChar == block.length()) // beginChar = 0; } int lastLine = blockLayout->lineCount()-1; int endChar = -1; if (block == end.block()) { endChar = end.positionInBlock(); lastLine = blockLayout->lineForTextPosition(endChar).lineNumber(); inSelection = false; firstOrLastBlock = true; } else { endChar = block.length(); while (endChar > beginChar && document->characterAt(block.position() + endChar - 1).isSpace()) --endChar; } QRectF lineRect = line.naturalTextRect(); if (beginChar < endChar) { lineRect.setLeft(line.cursorToX(beginChar)); if (line.lineNumber() == lastLine) lineRect.setRight(line.cursorToX(endChar)); selection += lineRect.translated(blockGeometry.topLeft()); for (int lineIndex = line.lineNumber()+1; lineIndex <= lastLine; ++lineIndex) { line = blockLayout->lineAt(lineIndex); lineRect = line.naturalTextRect(); if (lineIndex == lastLine) lineRect.setRight(line.cursorToX(endChar)); selection += lineRect.translated(blockGeometry.topLeft()); } } else { // empty lines const int emptyLineSelectionSize = 16; if (!firstOrLastBlock && !selection.isEmpty()) { // middle lineRect.setLeft(selection.last().left()); } else if (inSelection) { // first line lineRect.setLeft(line.cursorToX(beginChar)); } else { // last line if (endChar == 0) break; lineRect.setLeft(line.cursorToX(endChar) - emptyLineSelectionSize); } lineRect.setRight(lineRect.left() + emptyLineSelectionSize); selection += lineRect.translated(blockGeometry.topLeft()); } if (!inSelection) break; if (blockGeometry.translated(offset).y() > 2*viewportRect.height()) break; } } if (selection.isEmpty()) return QPainterPath(); QVector<QPointF> points; const int margin = m_borderWidth/2; const int extra = 0; const QRectF &firstSelection = selection.at(0); points += (firstSelection.topLeft() + firstSelection.topRight()) / 2 + QPointF(0, -margin); points += firstSelection.topRight() + QPointF(margin+1, -margin); points += firstSelection.bottomRight() + QPointF(margin+1, 0); const int count = selection.count(); for (int i = 1; i < count-1; ++i) { #define MAX3(a,b,c) qMax(a, qMax(b,c)) qreal x = MAX3(selection.at(i-1).right(), selection.at(i).right(), selection.at(i+1).right()) + margin; points += QPointF(x+1, selection.at(i).top()); points += QPointF(x+1, selection.at(i).bottom()); } const QRectF &lastSelection = selection.at(count-1); points += lastSelection.topRight() + QPointF(margin+1, 0); points += lastSelection.bottomRight() + QPointF(margin+1, margin+extra); points += lastSelection.bottomLeft() + QPointF(-margin, margin+extra); points += lastSelection.topLeft() + QPointF(-margin, 0); for (int i = count-2; i > 0; --i) { #define MIN3(a,b,c) qMin(a, qMin(b,c)) qreal x = MIN3(selection.at(i-1).left(), selection.at(i).left(), selection.at(i+1).left()) - margin; points += QPointF(x, selection.at(i).bottom()+extra); points += QPointF(x, selection.at(i).top()); } points += firstSelection.bottomLeft() + QPointF(-margin, extra); points += firstSelection.topLeft() + QPointF(-margin, -margin); QPainterPath path; const int corner = 4; path.moveTo(points.at(0)); points += points.at(0); QPointF previous = points.at(0); for (int i = 1; i < points.size(); ++i) { QPointF point = points.at(i); if (point.y() == previous.y() && qAbs(point.x() - previous.x()) > 2*corner) { QPointF tmp = QPointF(previous.x() + corner * ((point.x() > previous.x())?1:-1), previous.y()); path.quadTo(previous, tmp); previous = tmp; i--; continue; } else if (point.x() == previous.x() && qAbs(point.y() - previous.y()) > 2*corner) { QPointF tmp = QPointF(previous.x(), previous.y() + corner * ((point.y() > previous.y())?1:-1)); path.quadTo(previous, tmp); previous = tmp; i--; continue; } QPointF target = (previous + point) / 2; path.quadTo(previous, target); previous = points.at(i); } path.closeSubpath(); path.translate(offset); return path; }
void KoTextShapeContainerModel::proposeMove(KoShape *child, QPointF &move) { Relation *relation = d->children.value(child); if (relation == 0 || relation->anchor == 0) return; QPointF newPosition = child->position() + move; QRectF parentShapeRect(QPointF(0, 0), child->parent()->size()); //kDebug(32500) <<"proposeMove:" << move <<" |" << newPosition <<" |" << parentShapeRect; if (qAbs(newPosition.x()) < 10) // align left relation->anchor->setAlignment(KoTextAnchor::Left); else if (qAbs(parentShapeRect.width() - newPosition.x()) < 10.0) relation->anchor->setAlignment(KoTextAnchor::Right); else if (qAbs(parentShapeRect.width() / 2.0 - newPosition.x()) < 10.0) relation->anchor->setAlignment(KoTextAnchor::Center); /*else { relation->anchor->setAlignment(KoTextAnchor::HorizontalOffset); // TODO //QPointF offset = relation->anchor->offset(); //offset.setX(offset.x() + move.x()); //relation->anchor->setOffset(offset); } */ if (qAbs(newPosition.y()) < 10.0) // TopOfFrame { kDebug(32500) <<" TopOfFrame"; relation->anchor->setAlignment(KoTextAnchor::TopOfFrame); } else if (qAbs(parentShapeRect.height() - newPosition.y()) < 10.0) { kDebug(32500) <<" BottomOfFrame"; relation->anchor->setAlignment(KoTextAnchor::BottomOfFrame); // TODO } else { // need layout info.. QTextBlock block = relation->anchor->document()->findBlock(relation->anchor->positionInDocument()); QTextLayout *layout = block.layout(); if (layout->lineCount() > 0) { KoTextShapeData *data = dynamic_cast<KoTextShapeData*>(child->parent()->userData()); Q_ASSERT(data); QTextLine tl = layout->lineAt(0); qreal y = tl.y() - data->documentOffset() - newPosition.y(); if (y >= 0 && y < 10) { kDebug(32500) <<" TopOfParagraph" << y <<""; relation->anchor->setAlignment(KoTextAnchor::TopOfParagraph); } else { tl = layout->lineAt(layout->lineCount() - 1); y = newPosition.y() - tl.y() - data->documentOffset() - tl.ascent(); if (y >= 0 && y < 10) { kDebug(32500) <<" BottomOfParagraph" << y; relation->anchor->setAlignment(KoTextAnchor::BottomOfParagraph); // TODO } else { tl = layout->lineForTextPosition(relation->anchor->positionInDocument() - block.position()); y = tl.y() - data->documentOffset() - newPosition.y(); if (y >= 0 && y < 10) { kDebug(32500) <<" AboveCurrentLine"; relation->anchor->setAlignment(KoTextAnchor::AboveCurrentLine); } //else do VerticalOffset here as well? } } } } move.setX(0); // let the text layout move it. move.setY(0); }
void BaseEditor::paintEvent(QPaintEvent *e) { //copy from QPlainTextEditor QPainter painter(viewport()); Q_ASSERT(qobject_cast<QPlainTextDocumentLayout*>(document()->documentLayout())); QPointF offset(contentOffset()); QRect er = e->rect(); QRect viewportRect = viewport()->rect(); bool editable = !isReadOnly(); QTextBlock block = firstVisibleBlock(); qreal maximumWidth = document()->documentLayout()->documentSize().width(); //margin qreal lineX = 0; if (conf->isDisplayRightColumnMargin()) { // Don't use QFontMetricsF::averageCharWidth here, due to it returning // a fractional size even when this is not supported by the platform. lineX = QFontMetricsF(document()->defaultFont()).width(QLatin1Char('X')) * conf->getRightMarginColumn() + offset.x() + 4; if (lineX < viewportRect.width()) { const QBrush background = QBrush(QColor(239, 239, 239)); painter.fillRect(QRectF(lineX, er.top(), viewportRect.width() - lineX, er.height()), background); const QColor col = (palette().base().color().value() > 128) ? Qt::black : Qt::white; const QPen pen = painter.pen(); painter.setPen(blendColors(background.isOpaque() ? background.color() : palette().base().color(), col, 32)); painter.drawLine(QPointF(lineX, er.top()), QPointF(lineX, er.bottom())); painter.setPen(pen); } } // Set a brush origin so that the WaveUnderline knows where the wave started painter.setBrushOrigin(offset); // keep right margin clean from full-width selection int maxX = offset.x() + qMax((qreal)viewportRect.width(), maximumWidth) - document()->documentMargin(); er.setRight(qMin(er.right(), maxX)); painter.setClipRect(er); QAbstractTextDocumentLayout::PaintContext context = getPaintContext(); while (block.isValid()) { QRectF r = blockBoundingRect(block).translated(offset); QTextLayout *layout = block.layout(); if (!block.isVisible()) { offset.ry() += r.height(); block = block.next(); continue; } if (r.bottom() >= er.top() && r.top() <= er.bottom()) { QTextBlockFormat blockFormat = block.blockFormat(); QBrush bg = blockFormat.background(); if (bg != Qt::NoBrush) { QRectF contentsRect = r; contentsRect.setWidth(qMax(r.width(), maximumWidth)); fillBackground(&painter, contentsRect, bg); } QVector<QTextLayout::FormatRange> selections; int blpos = block.position(); int bllen = block.length(); for (int i = 0; i < context.selections.size(); ++i) { const QAbstractTextDocumentLayout::Selection &range = context.selections.at(i); const int selStart = range.cursor.selectionStart() - blpos; const int selEnd = range.cursor.selectionEnd() - blpos; if (selStart < bllen && selEnd > 0 && selEnd > selStart) { QTextLayout::FormatRange o; o.start = selStart; o.length = selEnd - selStart; o.format = range.format; selections.append(o); } else if (!range.cursor.hasSelection() && range.format.hasProperty(QTextFormat::FullWidthSelection) && block.contains(range.cursor.position())) { // for full width selections we don't require an actual selection, just // a position to specify the line. that's more convenience in usage. QTextLayout::FormatRange o; QTextLine l = layout->lineForTextPosition(range.cursor.position() - blpos); o.start = l.textStart(); o.length = l.textLength(); if (o.start + o.length == bllen - 1) ++o.length; // include newline o.format = range.format; selections.append(o); } } bool drawCursor = ((editable || (textInteractionFlags() & Qt::TextSelectableByKeyboard)) && context.cursorPosition >= blpos && context.cursorPosition < blpos + bllen); bool drawCursorAsBlock = drawCursor && overwriteMode() ; if (drawCursorAsBlock) { if (context.cursorPosition == blpos + bllen - 1) { drawCursorAsBlock = false; } else { QTextLayout::FormatRange o; o.start = context.cursorPosition - blpos; o.length = 1; o.format.setForeground(palette().base()); o.format.setBackground(palette().text()); selections.append(o); } } layout->draw(&painter, offset, selections, er); if ((drawCursor && !drawCursorAsBlock) || (editable && context.cursorPosition < -1 && !layout->preeditAreaText().isEmpty())) { int cpos = context.cursorPosition; if (cpos < -1) cpos = layout->preeditAreaPosition() - (cpos + 2); else cpos -= blpos; layout->drawCursor(&painter, offset, cpos, cursorWidth()); } } offset.ry() += r.height(); if (offset.y() > viewportRect.height()) break; block = block.next(); } if (backgroundVisible() && !block.isValid() && offset.y() <= er.bottom() && (centerOnScroll() || verticalScrollBar()->maximum() == verticalScrollBar()->minimum())) { painter.fillRect(QRect(QPoint((int)er.left(), (int)offset.y()), er.bottomRight()), palette().background()); } }