triage: use the codeeditor in the gui
This commit is contained in:
Daniel Marjamäki
parent
3c1e39f246
commit
8d3570debf
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@ -1,251 +0,0 @@
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#include <QtWidgets>
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#include "codeeditor.h"
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Highlighter::Highlighter(QTextDocument *parent)
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: QSyntaxHighlighter(parent)
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{
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HighlightingRule rule;
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keywordFormat.setForeground(Qt::darkBlue);
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keywordFormat.setFontWeight(QFont::Bold);
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QStringList keywordPatterns;
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keywordPatterns << "bool"
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<< "break"
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<< "case"
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<< "char"
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<< "class"
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<< "const"
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<< "continue"
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<< "default"
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<< "do"
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<< "double"
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<< "else"
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<< "enum"
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<< "explicit"
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<< "for"
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<< "friend"
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<< "if"
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<< "inline"
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<< "int"
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<< "long"
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<< "namespace"
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<< "operator"
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<< "private"
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<< "protected"
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<< "public"
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<< "return"
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<< "short"
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<< "signed"
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<< "static"
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<< "struct"
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<< "switch"
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<< "template"
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<< "throw"
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<< "typedef"
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<< "typename"
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<< "union"
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<< "unsigned"
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<< "virtual"
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<< "void"
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<< "volatile"
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<< "while";
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foreach (const QString &pattern, keywordPatterns) {
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rule.pattern = QRegularExpression("\\b" + pattern + "\\b");
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rule.format = keywordFormat;
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highlightingRules.append(rule);
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}
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classFormat.setFontWeight(QFont::Bold);
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classFormat.setForeground(Qt::darkMagenta);
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rule.pattern = QRegularExpression("\\bQ[A-Za-z]+\\b");
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rule.format = classFormat;
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highlightingRules.append(rule);
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quotationFormat.setForeground(Qt::darkGreen);
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rule.pattern = QRegularExpression("\".*\"");
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rule.format = quotationFormat;
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highlightingRules.append(rule);
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singleLineCommentFormat.setForeground(Qt::gray);
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rule.pattern = QRegularExpression("//[^\n]*");
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rule.format = singleLineCommentFormat;
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highlightingRules.append(rule);
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highlightingRulesWithSymbols = highlightingRules;
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multiLineCommentFormat.setForeground(Qt::gray);
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symbolFormat.setForeground(Qt::red);
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symbolFormat.setBackground(QColor(220,220,255));
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commentStartExpression = QRegularExpression("/\\*");
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commentEndExpression = QRegularExpression("\\*/");
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}
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void Highlighter::setSymbols(const QStringList &symbols)
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{
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highlightingRulesWithSymbols = highlightingRules;
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foreach (const QString &sym, symbols) {
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HighlightingRule rule;
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rule.pattern = QRegularExpression("\\b" + sym + "\\b");
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rule.format = symbolFormat;
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highlightingRulesWithSymbols.append(rule);
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}
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}
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void Highlighter::highlightBlock(const QString &text)
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{
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foreach (const HighlightingRule &rule, highlightingRulesWithSymbols) {
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QRegularExpressionMatchIterator matchIterator = rule.pattern.globalMatch(text);
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while (matchIterator.hasNext()) {
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QRegularExpressionMatch match = matchIterator.next();
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setFormat(match.capturedStart(), match.capturedLength(), rule.format);
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}
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}
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setCurrentBlockState(0);
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int startIndex = 0;
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if (previousBlockState() != 1)
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startIndex = text.indexOf(commentStartExpression);
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while (startIndex >= 0) {
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QRegularExpressionMatch match = commentEndExpression.match(text, startIndex);
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int endIndex = match.capturedStart();
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int commentLength = 0;
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if (endIndex == -1) {
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setCurrentBlockState(1);
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commentLength = text.length() - startIndex;
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} else {
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commentLength = endIndex - startIndex
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+ match.capturedLength();
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}
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setFormat(startIndex, commentLength, multiLineCommentFormat);
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startIndex = text.indexOf(commentStartExpression, startIndex + commentLength);
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}
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}
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CodeEditor::CodeEditor(QWidget *parent) : QPlainTextEdit(parent)
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{
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lineNumberArea = new LineNumberArea(this);
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highlighter = new Highlighter(this->document());
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mErrorPosition = -1;
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setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
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connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
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connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
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updateLineNumberAreaWidth(0);
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}
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static int getPos(const QString &fileData, int lineNumber)
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{
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if (lineNumber <= 1)
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return 0;
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for (int pos = 0, line = 1; pos < fileData.size(); ++pos) {
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if (fileData[pos] != '\n')
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continue;
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++line;
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if (line >= lineNumber)
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return pos + 1;
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}
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return fileData.size();
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}
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void CodeEditor::setError(const QString &code, int errorLine, const QStringList &symbols)
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{
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highlighter->setSymbols(symbols);
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setPlainText(code);
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mErrorPosition = getPos(code, errorLine);
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QTextCursor tc = textCursor();
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tc.setPosition(mErrorPosition);
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setTextCursor(tc);
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centerCursor();
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highlightErrorLine();
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}
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int CodeEditor::lineNumberAreaWidth()
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{
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int digits = 1;
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int max = qMax(1, blockCount());
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while (max >= 10) {
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max /= 10;
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++digits;
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}
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int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits;
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return space;
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}
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void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */)
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{
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setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
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}
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void CodeEditor::updateLineNumberArea(const QRect &rect, int dy)
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{
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if (dy)
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lineNumberArea->scroll(0, dy);
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else
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lineNumberArea->update(0, rect.y(), lineNumberArea->width(), rect.height());
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if (rect.contains(viewport()->rect()))
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updateLineNumberAreaWidth(0);
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}
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void CodeEditor::resizeEvent(QResizeEvent *event)
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{
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QPlainTextEdit::resizeEvent(event);
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QRect cr = contentsRect();
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lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
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}
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void CodeEditor::highlightErrorLine()
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{
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QList<QTextEdit::ExtraSelection> extraSelections;
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QTextEdit::ExtraSelection selection;
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QColor lineColor = QColor(255,220,220);
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selection.format.setBackground(lineColor);
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selection.format.setProperty(QTextFormat::FullWidthSelection, true);
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selection.cursor = QTextCursor(document());
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selection.cursor.setPosition(mErrorPosition);
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selection.cursor.clearSelection();
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extraSelections.append(selection);
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setExtraSelections(extraSelections);
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}
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void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
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{
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QPainter painter(lineNumberArea);
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painter.fillRect(event->rect(), QColor(240,240,240));
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QTextBlock block = firstVisibleBlock();
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int blockNumber = block.blockNumber();
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int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
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int bottom = top + (int) blockBoundingRect(block).height();
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while (block.isValid() && top <= event->rect().bottom()) {
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if (block.isVisible() && bottom >= event->rect().top()) {
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QString number = QString::number(blockNumber + 1);
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painter.setPen(Qt::black);
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painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),
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Qt::AlignRight, number);
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}
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block = block.next();
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top = bottom;
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bottom = top + (int) blockBoundingRect(block).height();
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++blockNumber;
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}
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}
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@ -1,94 +0,0 @@
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#ifndef CODEEDITOR_H
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#define CODEEDITOR_H
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#include <QSyntaxHighlighter>
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#include <QPlainTextEdit>
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#include <QObject>
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#include <QRegularExpression>
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class QPaintEvent;
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class QResizeEvent;
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class QSize;
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class QWidget;
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class LineNumberArea;
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class Highlighter : public QSyntaxHighlighter {
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Q_OBJECT
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public:
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explicit Highlighter(QTextDocument *parent);
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void setSymbols(const QStringList &symbols);
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protected:
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void highlightBlock(const QString &text) override;
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private:
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struct HighlightingRule {
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QRegularExpression pattern;
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QTextCharFormat format;
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};
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QVector<HighlightingRule> highlightingRules;
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QVector<HighlightingRule> highlightingRulesWithSymbols;
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QRegularExpression commentStartExpression;
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QRegularExpression commentEndExpression;
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QTextCharFormat keywordFormat;
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QTextCharFormat classFormat;
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QTextCharFormat singleLineCommentFormat;
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QTextCharFormat multiLineCommentFormat;
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QTextCharFormat quotationFormat;
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QTextCharFormat symbolFormat;
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};
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class CodeEditor : public QPlainTextEdit {
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Q_OBJECT
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public:
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explicit CodeEditor(QWidget *parent);
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CodeEditor(const CodeEditor &) = delete;
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CodeEditor &operator=(const CodeEditor &) = delete;
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void lineNumberAreaPaintEvent(QPaintEvent *event);
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int lineNumberAreaWidth();
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void setError(const QString &code, int errorLine, const QStringList &symbols);
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protected:
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void resizeEvent(QResizeEvent *event) override;
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private slots:
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void updateLineNumberAreaWidth(int newBlockCount);
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void highlightErrorLine();
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void updateLineNumberArea(const QRect &, int);
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private:
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QWidget *lineNumberArea;
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Highlighter *highlighter;
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int mErrorPosition;
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};
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class LineNumberArea : public QWidget {
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public:
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explicit LineNumberArea(CodeEditor *editor) : QWidget(editor) {
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codeEditor = editor;
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}
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QSize sizeHint() const override {
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return QSize(codeEditor->lineNumberAreaWidth(), 0);
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}
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protected:
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void paintEvent(QPaintEvent *event) override {
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codeEditor->lineNumberAreaPaintEvent(event);
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}
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private:
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CodeEditor *codeEditor;
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};
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#endif // CODEEDITOR_H
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@ -62,6 +62,7 @@ void MainWindow::loadFile()
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}
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std::random_shuffle(allErrors.begin(), allErrors.end());
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ui->results->addItems(allErrors.mid(0,100));
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ui->results->sortItems();
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} else {
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ui->results->addItems(allErrors);
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}
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@ -12,6 +12,7 @@ TARGET = triage
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TEMPLATE = app
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QMAKE_CXXFLAGS += -std=c++11
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INCLUDEPATH += ../../gui
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# The following define makes your compiler emit warnings if you use
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# any feature of Qt which as been marked as deprecated (the exact warnings
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@ -27,9 +28,9 @@ DEFINES += QT_DEPRECATED_WARNINGS
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SOURCES += main.cpp\
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mainwindow.cpp \
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codeeditor.cpp
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../../gui/codeeditor.cpp
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HEADERS += mainwindow.h \
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codeeditor.h
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../../gui/codeeditor.h
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FORMS += mainwindow.ui
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