diff options
Diffstat (limited to 'Tests/QtAutogen/codeeditor.cpp')
| -rw-r--r-- | Tests/QtAutogen/codeeditor.cpp | 215 |
1 files changed, 104 insertions, 111 deletions
diff --git a/Tests/QtAutogen/codeeditor.cpp b/Tests/QtAutogen/codeeditor.cpp index 01da062765..0caf8a7df9 100644 --- a/Tests/QtAutogen/codeeditor.cpp +++ b/Tests/QtAutogen/codeeditor.cpp @@ -38,116 +38,109 @@ ** ****************************************************************************/ - #include <QtGui> - - #include "codeeditor.h" - - - CodeEditor::CodeEditor(QWidget *parent) : QPlainTextEdit(parent) - { - lineNumberArea = new LineNumberArea(this); - - connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int))); - connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int))); - connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine())); - - updateLineNumberAreaWidth(0); - highlightCurrentLine(); - } - - - - int CodeEditor::lineNumberAreaWidth() - { - int digits = 1; - int max = qMax(1, blockCount()); - while (max >= 10) { - max /= 10; - ++digits; - } - - int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits; - - return space; - } - - - - void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */) - { - setViewportMargins(lineNumberAreaWidth(), 0, 0, 0); - } - - - - void CodeEditor::updateLineNumberArea(const QRect &rect, int dy) - { - if (dy) - lineNumberArea->scroll(0, dy); - else - lineNumberArea->update(0, rect.y(), lineNumberArea->width(), rect.height()); - - if (rect.contains(viewport()->rect())) - updateLineNumberAreaWidth(0); - } - - - - void CodeEditor::resizeEvent(QResizeEvent *e) - { - QPlainTextEdit::resizeEvent(e); - - QRect cr = contentsRect(); - lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height())); - } - - - - void CodeEditor::highlightCurrentLine() - { - QList<QTextEdit::ExtraSelection> extraSelections; - - if (!isReadOnly()) { - QTextEdit::ExtraSelection selection; - - QColor lineColor = QColor(Qt::yellow).lighter(160); - - selection.format.setBackground(lineColor); - selection.format.setProperty(QTextFormat::FullWidthSelection, true); - selection.cursor = textCursor(); - selection.cursor.clearSelection(); - extraSelections.append(selection); - } - - setExtraSelections(extraSelections); - } - - - - void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event) - { - QPainter painter(lineNumberArea); - 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()) { - 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; - } - } +#include <QtGui> + +#include "codeeditor.h" + +CodeEditor::CodeEditor(QWidget* parent) + : QPlainTextEdit(parent) +{ + lineNumberArea = new LineNumberArea(this); + + connect(this, SIGNAL(blockCountChanged(int)), this, + SLOT(updateLineNumberAreaWidth(int))); + connect(this, SIGNAL(updateRequest(QRect, int)), this, + SLOT(updateLineNumberArea(QRect, int))); + connect(this, SIGNAL(cursorPositionChanged()), this, + SLOT(highlightCurrentLine())); + + updateLineNumberAreaWidth(0); + highlightCurrentLine(); +} + +int CodeEditor::lineNumberAreaWidth() +{ + int digits = 1; + int max = qMax(1, blockCount()); + while (max >= 10) { + max /= 10; + ++digits; + } + + int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits; + + return space; +} + +void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */) +{ + setViewportMargins(lineNumberAreaWidth(), 0, 0, 0); +} + +void CodeEditor::updateLineNumberArea(const QRect& rect, int dy) +{ + if (dy) + lineNumberArea->scroll(0, dy); + else + lineNumberArea->update(0, rect.y(), lineNumberArea->width(), + rect.height()); + + if (rect.contains(viewport()->rect())) + updateLineNumberAreaWidth(0); +} + +void CodeEditor::resizeEvent(QResizeEvent* e) +{ + QPlainTextEdit::resizeEvent(e); + + QRect cr = contentsRect(); + lineNumberArea->setGeometry( + QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height())); +} + +void CodeEditor::highlightCurrentLine() +{ + QList<QTextEdit::ExtraSelection> extraSelections; + + if (!isReadOnly()) { + QTextEdit::ExtraSelection selection; + + QColor lineColor = QColor(Qt::yellow).lighter(160); + + selection.format.setBackground(lineColor); + selection.format.setProperty(QTextFormat::FullWidthSelection, true); + selection.cursor = textCursor(); + selection.cursor.clearSelection(); + extraSelections.append(selection); + } + + setExtraSelections(extraSelections); +} + +void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent* event) +{ + QPainter painter(lineNumberArea); + 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()) { + 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; + } +} #include "codeeditor.moc" |