//! Activated whenever LineNumberArea Widget paint event is raised.
//! Writes the line numbers for the visible blocks.
void ModelicaEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(mpLineNumberArea);
painter.fillRect(event->rect(), QColor(240, 240, 240));
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom())
{
if (block.isVisible() && bottom >= event->rect().top())
{
QString number = QString::number(blockNumber + 1);
// make the current highlighted line number darker
if (blockNumber == textCursor().blockNumber())
{
painter.setPen(QColor(64, 64, 64));
}
else
{
painter.setPen(Qt::gray);
}
painter.setFont(document()->defaultFont());
QFontMetrics fontMetrics (document()->defaultFont());
painter.drawText(0, top, mpLineNumberArea->width() - 5, fontMetrics.height(), Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void TikzEditor::printWhiteSpaces(QPainter &painter)
{
const QFontMetrics fontMetrics = QFontMetrics(document()->defaultFont());
for (QTextBlock block = firstVisibleBlock(); block.isValid(); block = block.next())
{
if (blockBoundingGeometry(block).top() > viewport()->height())
break;
const QString text = block.text();
const int textLength = text.length();
for (int i = 0; i < textLength; ++i)
{
QTextCursor cursor = textCursor();
cursor.setPosition(block.position() + i, QTextCursor::MoveAnchor);
const QRect rect = cursorRect(cursor);
// const QFontMetrics fontMetrics = QFontMetrics(cursor.charFormat().font());
if (m_showWhiteSpaces && text.at(i) == ' ')
paintSpace(painter, rect.x() + spaceWidth() / 2.0, rect.y() + fontMetrics.height() / 2.0);
else if (m_showTabulators && text.at(i) == '\t')
paintTabstop(painter, rect.x() + spaceWidth() / 2.0, rect.y() + fontMetrics.height() / 2.0);
}
}
}
void TikzEditor::showMatchingBrackets()
{
for (QTextBlock block = firstVisibleBlock(); block.isValid(); block = block.next())
{
if (blockBoundingGeometry(block).top() > viewport()->height())
break;
const QString text = block.text();
const int textLength = text.length();
for (int i = 0; i < textLength; ++i)
{
if (block.position() + i == m_matchingBegin || block.position() + i == m_matchingEnd)
{
QList<QTextEdit::ExtraSelection> extraSelectionList = extraSelections();
if (!isReadOnly())
{
QTextEdit::ExtraSelection selection;
selection.format.setBackground(m_matchingColor);
selection.cursor = textCursor();
selection.cursor.setPosition(block.position() + i, QTextCursor::MoveAnchor);
selection.cursor.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
extraSelectionList.append(selection);
}
setExtraSelections(extraSelectionList);
}
}
}
}
/*************************************************
// Function: PaintLineNumberArea
// Description: 绘制左侧行号区域
// Calls:
// Called By: CLineNumberArea::paintEvent
// Parameter: QPaintEvent *event
// Return: void
// Others: 通过CLineNumberArea类的paintEvent函数来调用本函数，
以保证能够实时更新该行数
*************************************************/
void CCodeEditor::PaintLineNumberArea(QPaintEvent *event)
{
QPainter painter(m_lineNumberArea);
painter.fillRect(event->rect(), Qt::lightGray); /*行数背景颜色*/
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber(); /*当前行(从0开始)*/
int top = (int)blockBoundingGeometry(block).translated(contentOffset()).top() + fontMetrics().descent();/*绘制区域的顶部*/
int bottom = top + (int)blockBoundingRect(block).height(); /*绘制区域的底部*/
/*绘制可见区域*/
while (block.isValid() && top <= event->rect().bottom())
{
if (block.isVisible() && bottom >= event->rect().top())
{
QString number = QString::number(blockNumber + 1);
painter.setPen(Qt::black); /*行号颜色*/
painter.drawText(0, top, m_lineNumberArea->width(), fontMetrics().height(),
Qt::AlignCenter, number);
}
block = block.next();
top = bottom;
bottom = top + (int)blockBoundingRect(block).height();
++blockNumber;
}
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
painter.fillRect(event->rect(), QWidget::palette().color(QWidget::backgroundRole()).darker(50));
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.setPen(QWidget::palette().color(QWidget::foregroundRole()).darker(50));
painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
QColor q = QColor();
q.setNamedColor("#323232");
QColor q2 = QColor();
q2.setNamedColor("#247EAF");
painter.fillRect(event->rect(), q);
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.setPen(q2);
painter.drawText(0, top, lineNumberArea->width()-5 , fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
painter.fillRect(event->rect(), Qt::lightGray);
//![extraAreaPaintEvent_0]
//![extraAreaPaintEvent_1]
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
//![extraAreaPaintEvent_1]
//![extraAreaPaintEvent_2]
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.setPen(Qt::black);
painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void ScriptEditBox::lineNumberAreaPaintEvent(QPaintEvent* event)
{
QPainter painter(_scriptLineNumberArea);
painter.fillRect(event->rect(), Qt::lightGray);
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QFont font = painter.font();
font.setBold(this->textCursor().blockNumber() == block.blockNumber());
painter.setFont(font);
QString number = QString::number(blockNumber + 1);
painter.setPen(Qt::black);
painter.drawText(0, top, _scriptLineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
blockNumber++;
}
}
void GenericCodeEditor::paintEvent( QPaintEvent *event )
{
if (mHighlightCurrentLine)
{
int cursor_block_num = textCursor().blockNumber();
QTextBlock block = firstVisibleBlock();
int block_num = block.blockNumber();
qreal top = blockBoundingGeometry(block).translated(contentOffset()).top();
qreal max_top = event->rect().bottom();
while (block.isValid() && block_num <= cursor_block_num && top <= max_top)
{
QRectF block_rect = blockBoundingRect(block);
if (block_num == cursor_block_num) {
QPainter painter(viewport());
painter.fillRect(
block_rect.translated(0, top),
mCurrentLineTextFormat.background().color() );
painter.end();
break;
}
top += block_rect.height();
block = block.next();
++block_num;
}
}
QPlainTextEdit::paintEvent(event);
}
//-------------------------------------------------------------------------
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
painter.setPen(Qt::gray);
QFont lineFont = document()->defaultFont();
lineFont.setPointSize( lineFont.pointSize()*2/3 );
painter.setFont( lineFont );
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top() + fontMetrics().leading();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight | Qt::AlignBottom, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void ScriptView::paintLineNumberArea(QPaintEvent* pevent)
{
QPainter painter(mpLineNumberArea);
QTextBlock block = firstVisibleBlock();
int blocknumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while ( block.isValid() && top <= pevent->rect().bottom() )
{
if ( block.isVisible() && bottom >= pevent->rect().top())
{
QString number = QString::number(blocknumber + 1);
painter.setPen(Qt::darkGray);
painter.drawText(0, top, mpLineNumberArea->width(),
fontMetrics().height(), Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) + blockBoundingRect(block).height();
++blocknumber;
}
}
void CodeEditorWidget::paintLines( LinesWidget* linesWidget, QPaintEvent* event )
{
QPainter painter( linesWidget );
painter.fillRect( event->rect(), Qt::lightGray );
//The lineNumberAreaPaintEvent() is called from LineNumberArea whenever it receives a paint event. We start off by painting the widget's background.
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int)blockBoundingGeometry(block).translated( contentOffset() ).top();
int bottom = top + (int)blockBoundingRect( block ).height();
// We will now loop through all visible lines and paint the line numbers in the extra area for each line.
// Notice that in a plain text edit each line will consist of one QTextBlock; though, if line wrapping is enabled, a line may span several rows in the text edit's viewport.
// We get the top and bottom y-coordinate of the first text block, and adjust these values by the height of the current text block in each iteration in the loop.
while( block.isValid() && top <= event->rect().bottom() )
{
if ( block.isVisible() && bottom >= event->rect().top() )
{
QString number = QString::number( blockNumber + 1 );
painter.setPen( Qt::black );
painter.drawText( 0, top, linesWidget->width(), fontMetrics().height(), Qt::AlignRight, number );
}
block = block.next();
top = bottom;
bottom = top + (int)blockBoundingRect( block ).height();
++blockNumber;
}
}
void CodeEditor::lineNumberAreaMousePressEvent(QMouseEvent *event)
{
if (hasBreakpoints) {
//if mouse click has been made - add breakpoint
//counting line number
int lineNumber = 0;
int sumHeight = 0;
QTextBlock block = firstVisibleBlock();
while (block.isValid() && event->y() > sumHeight) {
sumHeight += blockBoundingGeometry(block).height();
block = block.next();
lineNumber++;
}
lineNumber += verticalScrollBar()->value(); //+ invisible lines
if (lineNumber <= document()->lineCount()) {
//blocks counting starts with 0
lineNumber = document()->findBlockByLineNumber(lineNumber - 1).blockNumber() + 1; //line number to paint
//add or remove line number in list
if (breakpoints.contains(lineNumber)) {
breakpoints.removeOne(lineNumber);
emit breakpointsChanged(lineNumber, false);
} else {
breakpoints.append(lineNumber);
emit breakpointsChanged(lineNumber, true);
}
repaintLineNumberArea();
}
}
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event) {
QPainter painter( lineNumberArea ) ;
painter.fillRect( event->rect(), QColor( Qt::lightGray ).lighter( 120 ) ) ;
QTextBlock block = firstVisibleBlock() ;
QTextCursor cursor = textCursor() ;
int blockNumber = block.blockNumber() ;
int top = (int) blockBoundingGeometry( block ).translated( contentOffset() ).top() ;
int bottom = top + (int) blockBoundingRect(block).height() ;
while ( block.isValid() && top <= event->rect().bottom() ) {
if ( block.isVisible() && bottom >= event->rect().top() ) {
QString number = QString::number( blockNumber + 1 ) ;
if ( block == cursor.block() )
painter.setPen( QColor( Qt::black ) ) ;
else
painter.setPen( Qt::gray ) ;
painter.drawText(
0, top, lineNumberArea->width(), fontMetrics().height(),
Qt::AlignHCenter, number
) ;
}
block = block.next() ;
top = bottom ;
bottom = top + (int)blockBoundingRect( block ).height() ;
blockNumber += 1 ;
}
}
void BaseEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
painter.fillRect(event->rect(), QColor::fromRgb(0xEA,0xEA,0xEA));
painter.setFont(document()->defaultFont());
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
int height = QFontMetrics(document()->defaultFont()).height();
while(block.isValid() && top <= event->rect().bottom())
{
if (block.isVisible() && bottom >= event->rect().top())
{
QString number = QString::number(blockNumber+1);
painter.setPen(Qt::black);
painter.drawText(0, top, lineNumberArea->width(), height,
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void GenericCodeEditor::updateCurrentLineHighlighting()
{
int currentCursorBlock = textCursor().blockNumber();
int first_block_num = qMin(mLastCursorBlock, currentCursorBlock);
int second_block_num = qMax(mLastCursorBlock, currentCursorBlock);
QRegion region(0,0,0,0);
QTextBlock block = firstVisibleBlock();
int block_num = block.blockNumber();
qreal top = blockBoundingGeometry(block).translated(contentOffset()).top();
qreal max_top = viewport()->rect().bottom();
while (block.isValid() && block_num <= second_block_num && top <= max_top)
{
QRectF block_rect = blockBoundingRect(block);
if (block_num == first_block_num || block_num == second_block_num) {
region += block_rect.translated(0, top).toRect();
}
top += block_rect.height();
block = block.next();
++block_num;
}
viewport()->update( region );
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
painter.fillRect(event->rect(), QColor(Qt::gray).lighter(140));
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom())
{
if (block.isVisible() && bottom >= event->rect().top())
{
int rowId = blockNumber + 1;
QString number = QString::number(rowId);
if (errorLines.indexOf(rowId)!=-1) {
painter.setPen(Qt::red);
} else if (warningLines.indexOf(rowId)!=-1) {
painter.setPen(Qt::yellow);
} else {
painter.setPen(Qt::gray);
}
painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(), Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void TextEdit::gutterPaintEvent(QPaintEvent *event)
{
QPainter painter(gutter);
painter.fillRect(event->rect(), QColor(0xee, 0xee, 0xee));
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
int digiW = fontMetrics().width(QLatin1Char('9'));
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.setPen(QColor(0x88, 0x88, 0x88));
painter.drawText(0, top, gutter->width() - digiW / 2, fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void GenericCodeEditor::paintLineIndicator( QPaintEvent *e )
{
QPalette plt( mLineIndicator->palette() );
QRect r( e->rect() );
QPainter p( mLineIndicator );
p.fillRect( r, plt.color( QPalette::Mid ) );
p.setPen( plt.color(QPalette::Dark) );
p.drawLine( r.topRight(), r.bottomRight() );
p.setPen( plt.color(QPalette::ButtonText) );
QTextDocument *doc = QPlainTextEdit::document();
QTextCursor cursor(textCursor());
int selStartBlock, selEndBlock;
if (cursor.hasSelection()) {
selStartBlock = doc->findBlock(cursor.selectionStart()).blockNumber();
selEndBlock = doc->findBlock(cursor.selectionEnd()).blockNumber();
}
else
selStartBlock = selEndBlock = -1;
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
qreal top = blockBoundingGeometry(block).translated(contentOffset()).top();
qreal bottom = top + blockBoundingRect(block).height();
while (block.isValid() && top <= e->rect().bottom()) {
if (block.isVisible() && bottom >= e->rect().top()) {
p.save();
QRectF numRect( 0, top, mLineIndicator->width() - 1, bottom - top );
int num = blockNumber;
if (num >= selStartBlock && num <= selEndBlock) {
num -= selStartBlock;
p.setPen(Qt::NoPen);
p.setBrush(plt.color(QPalette::Highlight));
p.drawRect(numRect);
p.setPen(plt.color(QPalette::HighlightedText));
}
QString number = QString::number(num + 1);
p.drawText(0, top, mLineIndicator->width() - 4, bottom - top,
Qt::AlignRight, number);
p.restore();
}
block = block.next();
top = bottom;
bottom = top + blockBoundingRect(block).height();
++blockNumber;
}
}
void CSVWorld::ScriptEdit::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(mLineNumberArea);
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
int startBlock = textCursor().blockNumber();
int endBlock = textCursor().blockNumber();
if(textCursor().hasSelection())
{
QString str = textCursor().selection().toPlainText();
int selectedLines = str.count("\n")+1;
if(textCursor().position() < textCursor().anchor())
endBlock += selectedLines;
else
startBlock -= selectedLines;
}
painter.setBackgroundMode(Qt::OpaqueMode);
QFont font = painter.font();
QBrush background = painter.background();
while (block.isValid() && top <= event->rect().bottom())
{
if (block.isVisible() && bottom >= event->rect().top())
{
QFont newFont = painter.font();
QString number = QString::number(blockNumber + 1);
if(blockNumber >= startBlock && blockNumber <= endBlock)
{
painter.setBackground(Qt::cyan);
painter.setPen(Qt::darkMagenta);
newFont.setBold(true);
}
else
{
painter.setBackground(background);
painter.setPen(Qt::black);
}
painter.setFont(newFont);
painter.drawText(0, top, mLineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight, number);
painter.setFont(font);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void CodeEditor::extraAreaMouseEvent(QMouseEvent* event)
{
if (event->button() == Qt::LeftButton) {
QTextBlock block = findBlockByY(event->pos().y());
if (FOLDBOXRECT(blockBoundingGeometry(block).translated(contentOffset()).y() +
fontMetrics().height() / 2).contains(event->pos())) {
foldUnfold(block);
ensureCursorVisible();
FULLRESIZE;
}
}
}
void MarkdownEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
int selStart = textCursor().selectionStart();
int selEnd = textCursor().selectionEnd();
QPalette palette = lineNumberArea->palette();
palette.setCurrentColorGroup(QPalette::Active);
painter.fillRect(event->rect(), palette.color(QPalette::Background));
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
qreal top = blockBoundingGeometry(block).translated(contentOffset()).top();
qreal bottom = top;
while (block.isValid() && top <= event->rect().bottom()) {
top = bottom;
const qreal height = blockBoundingRect(block).height();
bottom = top + height;
if (block.isVisible() && bottom >= event->rect().top()) {
painter.setPen(palette.color(QPalette::Dark));
bool selected = (
(selStart < block.position() + block.length() && selEnd > block.position())
|| (selStart == selEnd && selStart == block.position())
);
if (selected) {
painter.save();
painter.setPen(Qt::black);
}
const QString number = QString::number(blockNumber + 1);
painter.drawText(0, top, lineNumberArea->width() - 4, height, Qt::AlignRight, number);
if (selected)
painter.restore();
}
block = block.next();
++blockNumber;
}
}
void SparqlTextEdit::paintLineNumbers(QPaintEvent *e)
{
QFontMetrics metrics(currentCharFormat().font());
int digits = 0;
int blocks = blockCount();
do {
blocks /= 10;
++digits;
} while (blocks);
int maxCharWidth = 0;
for (char c = '0'; c <= '9'; c++) {
maxCharWidth = qMax(maxCharWidth, metrics.width(c));
}
int newLeftMargin = frameWidth() + maxCharWidth * digits;
if (leftMargin != newLeftMargin) {
leftMargin = newLeftMargin;
setViewportMargins(leftMargin, 0, 0, 0);
}
QPainter painter(this);
painter.setClipRect(lineNumbersRect(), Qt::IntersectClip);
painter.fillRect(e->rect(), palette().window());
painter.setPen(palette().windowText().color());
painter.setFont(currentCharFormat().font());
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block)
.translated(contentOffset()).top() + lineNumbersRect().top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= e->rect().bottom()) {
if (block.isVisible() && bottom >= e->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.drawText(0, top, leftMargin, metrics.height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void CodeEditor::paintEvent(QPaintEvent* event)
{
QPlainTextEdit::paintEvent(event);
QPainter painter(viewport());
painter.setPen(Qt::darkGray);
QTextBlock block = firstVisibleBlock();
QRectF rect;
do {
if (!block.isVisible())
continue;
rect = blockBoundingGeometry(block).translated(contentOffset());
QTextLine line = block.layout()->lineAt(0);
if (config->whitespaces) {
QString txt = block.text();
for (int i = 0; i < txt.length(); i++) {
// rect.x() <- учитывая горизонтальный скролинг
QPoint point(rect.x() + line.cursorToX(i), rect.y() + line.ascent());
if (txt[i] == ' ')
painter.drawText(point, QChar(0x00b7));
else if (txt[i] == '\t')
painter.drawText(point, QChar(0x21b9));
}
}
int state = block.userState();
if (!(state & Error) && state & Folded) {
QRect collapseRect(rect.x() + line.rect().x() + line.naturalTextWidth() + FONTWIDTH * 2,
rect.y() + 2, FONTWIDTH * 6, line.height() - 4);
painter.drawText(collapseRect, Qt::AlignCenter, state & Comment ? "...;" : "...)");
painter.drawRoundedRect(collapseRect, 4, 6);
}
} while ((block = block.next()).isValid() && rect.y() < viewport()->height());
}
void CodeEditor::mouseMoveEvent(QMouseEvent* event)
{
QTextBlock block = findBlockByY(event->pos().y());
QRect collapseRect;
if (block.isValid()) {
QRectF rect = blockBoundingGeometry(block).translated(contentOffset());
QTextLine line = block.layout()->lineAt(0);
collapseRect = QRect(rect.x() + line.rect().x() + line.naturalTextWidth() + FONTWIDTH * 2,
rect.y() + 2, FONTWIDTH * 6, line.height() - 4);
}
int state = block.userState();
if (!(state & Error) && state & Folded && collapseRect.contains(event->pos())) {
pointedBlock = block;
viewport()->setCursor(Qt::PointingHandCursor);
QString str;
while ((block = block.next()).isValid() && !block.isVisible()) {
if (str.count() > 1)
str += "\n";
if (block.blockNumber() - pointedBlock.blockNumber() > 50) {
str += "..."; // "\n...";
break;
}
str += block.text();
}
QToolTip::showText(event->globalPos(), str, this);
} else {
pointedBlock = QTextBlock();
viewport()->setCursor(Qt::IBeamCursor);
}
QPlainTextEdit::mouseMoveEvent(event);
}
void CodeEdit::lineNumberWidgetPaintEvent(QPaintEvent* event) {
// qDebug() << "CodeEdit::lineNumberWidgetPaintEvent()";
QPainter painter(m_lineNumberWidget);
painter.setPen(QPen(ApplicationManager::settings()->lineNumberColor()));
painter.fillRect(event->rect(), QBrush(ApplicationManager::settings()->lineNumberBackgroundColor()));
QTextBlock block = firstVisibleBlock();
int top = (int)blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom;
while (block.isValid() && top <= event->rect().bottom()) {
bottom = top + (int)blockBoundingRect(block).height();
if (block.isVisible() && bottom >= event->rect().top()) {
painter.drawText(0, top, m_lineNumberWidget->width(), fontMetrics().height(),Qt::AlignRight, QString::number(block.blockNumber() + 1));
}
block = block.next();
top = bottom;
}
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter( lineNumberArea );
//painter.fillRect(event->rect(), Qt::lightGray);
painter.fillRect( event->rect(), lineNumberArea->palette().base() );
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom())
{
if (block.isVisible() && bottom >= event->rect().top())
{
QString number = QString::number( blockNumber + 1 );
painter.setPen( lineNumberArea->palette().text().color() );
for( const fugio::SyntaxError &SE : mSyntaxErrors )
{
if( SE.mLineStart <= blockNumber + 1 && SE.mLineEnd >= blockNumber + 1 )
{
QRectF R( event->rect().left(), top, event->rect().width(), blockBoundingRect( block ).height() );
painter.fillRect( R, Qt::red );
painter.setPen( Qt::white );
break;
}
}
painter.drawText( 0, top, lineNumberArea->width(), fontMetrics().height(),
Qt::AlignRight, number );
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
/**
* @brief Draws the line number area.
* @param event The paint event to handle.
*/
void TextEditorWidget::line_number_area_paint_event(QPaintEvent* event) {
QPainter painter(line_number_area);
QTextBlock block = firstVisibleBlock();
int block_number = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(block_number + 1) + " ";
painter.setPen(Qt::black);
painter.drawText(0, top, line_number_area->width(), fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++block_number;
}
}
/* Line numbers */
void JBEAM_TextBox::LineNumbersPaintEvent(QPaintEvent *event)
{
QPainter painter(LineNumbersA);
painter.fillRect(event->rect(), Qt::white);
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.setPen(Qt::gray);
painter.drawText(0, top, LineNumbersA->width(), fontMetrics().height(),
Qt::AlignRight, number);
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
void PgxEditor::breakpointAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(breakpointArea);
painter.fillRect(event->rect(), QColor(230,230,230,128));
QTextBlock block = firstVisibleBlock();
int blockNumber = block.blockNumber();
int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
int bottom = top + (int) blockBoundingRect(block).height();
while (block.isValid() && top <= event->rect().bottom()) {
if (block.isVisible() && bottom >= event->rect().top()) {
QString number = QString::number(blockNumber + 1);
painter.setPen(Qt::black);
painter.drawText(-1, top+2, breakpointArea->width(), fontMetrics().height(),
Qt::AlignRight, "");
}
block = block.next();
top = bottom;
bottom = top + (int) blockBoundingRect(block).height();
++blockNumber;
}
}
