triage: use the codeeditor in the gui

This commit is contained in:
Daniel Marjamäki 2018-05-02 12:59:34 +02:00
parent 3c1e39f246
commit 8d3570debf
4 changed files with 4 additions and 347 deletions

View File

@ -1,251 +0,0 @@
#include <QtWidgets>
#include "codeeditor.h"
Highlighter::Highlighter(QTextDocument *parent)
: QSyntaxHighlighter(parent)
{
HighlightingRule rule;
keywordFormat.setForeground(Qt::darkBlue);
keywordFormat.setFontWeight(QFont::Bold);
QStringList keywordPatterns;
keywordPatterns << "bool"
<< "break"
<< "case"
<< "char"
<< "class"
<< "const"
<< "continue"
<< "default"
<< "do"
<< "double"
<< "else"
<< "enum"
<< "explicit"
<< "for"
<< "friend"
<< "if"
<< "inline"
<< "int"
<< "long"
<< "namespace"
<< "operator"
<< "private"
<< "protected"
<< "public"
<< "return"
<< "short"
<< "signed"
<< "static"
<< "struct"
<< "switch"
<< "template"
<< "throw"
<< "typedef"
<< "typename"
<< "union"
<< "unsigned"
<< "virtual"
<< "void"
<< "volatile"
<< "while";
foreach (const QString &pattern, keywordPatterns) {
rule.pattern = QRegularExpression("\\b" + pattern + "\\b");
rule.format = keywordFormat;
highlightingRules.append(rule);
}
classFormat.setFontWeight(QFont::Bold);
classFormat.setForeground(Qt::darkMagenta);
rule.pattern = QRegularExpression("\\bQ[A-Za-z]+\\b");
rule.format = classFormat;
highlightingRules.append(rule);
quotationFormat.setForeground(Qt::darkGreen);
rule.pattern = QRegularExpression("\".*\"");
rule.format = quotationFormat;
highlightingRules.append(rule);
singleLineCommentFormat.setForeground(Qt::gray);
rule.pattern = QRegularExpression("//[^\n]*");
rule.format = singleLineCommentFormat;
highlightingRules.append(rule);
highlightingRulesWithSymbols = highlightingRules;
multiLineCommentFormat.setForeground(Qt::gray);
symbolFormat.setForeground(Qt::red);
symbolFormat.setBackground(QColor(220,220,255));
commentStartExpression = QRegularExpression("/\\*");
commentEndExpression = QRegularExpression("\\*/");
}
void Highlighter::setSymbols(const QStringList &symbols)
{
highlightingRulesWithSymbols = highlightingRules;
foreach (const QString &sym, symbols) {
HighlightingRule rule;
rule.pattern = QRegularExpression("\\b" + sym + "\\b");
rule.format = symbolFormat;
highlightingRulesWithSymbols.append(rule);
}
}
void Highlighter::highlightBlock(const QString &text)
{
foreach (const HighlightingRule &rule, highlightingRulesWithSymbols) {
QRegularExpressionMatchIterator matchIterator = rule.pattern.globalMatch(text);
while (matchIterator.hasNext()) {
QRegularExpressionMatch match = matchIterator.next();
setFormat(match.capturedStart(), match.capturedLength(), rule.format);
}
}
setCurrentBlockState(0);
int startIndex = 0;
if (previousBlockState() != 1)
startIndex = text.indexOf(commentStartExpression);
while (startIndex >= 0) {
QRegularExpressionMatch match = commentEndExpression.match(text, startIndex);
int endIndex = match.capturedStart();
int commentLength = 0;
if (endIndex == -1) {
setCurrentBlockState(1);
commentLength = text.length() - startIndex;
} else {
commentLength = endIndex - startIndex
+ match.capturedLength();
}
setFormat(startIndex, commentLength, multiLineCommentFormat);
startIndex = text.indexOf(commentStartExpression, startIndex + commentLength);
}
}
CodeEditor::CodeEditor(QWidget *parent) : QPlainTextEdit(parent)
{
lineNumberArea = new LineNumberArea(this);
highlighter = new Highlighter(this->document());
mErrorPosition = -1;
setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
updateLineNumberAreaWidth(0);
}
static int getPos(const QString &fileData, int lineNumber)
{
if (lineNumber <= 1)
return 0;
for (int pos = 0, line = 1; pos < fileData.size(); ++pos) {
if (fileData[pos] != '\n')
continue;
++line;
if (line >= lineNumber)
return pos + 1;
}
return fileData.size();
}
void CodeEditor::setError(const QString &code, int errorLine, const QStringList &symbols)
{
highlighter->setSymbols(symbols);
setPlainText(code);
mErrorPosition = getPos(code, errorLine);
QTextCursor tc = textCursor();
tc.setPosition(mErrorPosition);
setTextCursor(tc);
centerCursor();
highlightErrorLine();
}
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 *event)
{
QPlainTextEdit::resizeEvent(event);
QRect cr = contentsRect();
lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
}
void CodeEditor::highlightErrorLine()
{
QList<QTextEdit::ExtraSelection> extraSelections;
QTextEdit::ExtraSelection selection;
QColor lineColor = QColor(255,220,220);
selection.format.setBackground(lineColor);
selection.format.setProperty(QTextFormat::FullWidthSelection, true);
selection.cursor = QTextCursor(document());
selection.cursor.setPosition(mErrorPosition);
selection.cursor.clearSelection();
extraSelections.append(selection);
setExtraSelections(extraSelections);
}
void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event)
{
QPainter painter(lineNumberArea);
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);
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;
}
}

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@ -1,94 +0,0 @@
#ifndef CODEEDITOR_H
#define CODEEDITOR_H
#include <QSyntaxHighlighter>
#include <QPlainTextEdit>
#include <QObject>
#include <QRegularExpression>
class QPaintEvent;
class QResizeEvent;
class QSize;
class QWidget;
class LineNumberArea;
class Highlighter : public QSyntaxHighlighter {
Q_OBJECT
public:
explicit Highlighter(QTextDocument *parent);
void setSymbols(const QStringList &symbols);
protected:
void highlightBlock(const QString &text) override;
private:
struct HighlightingRule {
QRegularExpression pattern;
QTextCharFormat format;
};
QVector<HighlightingRule> highlightingRules;
QVector<HighlightingRule> highlightingRulesWithSymbols;
QRegularExpression commentStartExpression;
QRegularExpression commentEndExpression;
QTextCharFormat keywordFormat;
QTextCharFormat classFormat;
QTextCharFormat singleLineCommentFormat;
QTextCharFormat multiLineCommentFormat;
QTextCharFormat quotationFormat;
QTextCharFormat symbolFormat;
};
class CodeEditor : public QPlainTextEdit {
Q_OBJECT
public:
explicit CodeEditor(QWidget *parent);
CodeEditor(const CodeEditor &) = delete;
CodeEditor &operator=(const CodeEditor &) = delete;
void lineNumberAreaPaintEvent(QPaintEvent *event);
int lineNumberAreaWidth();
void setError(const QString &code, int errorLine, const QStringList &symbols);
protected:
void resizeEvent(QResizeEvent *event) override;
private slots:
void updateLineNumberAreaWidth(int newBlockCount);
void highlightErrorLine();
void updateLineNumberArea(const QRect &, int);
private:
QWidget *lineNumberArea;
Highlighter *highlighter;
int mErrorPosition;
};
class LineNumberArea : public QWidget {
public:
explicit LineNumberArea(CodeEditor *editor) : QWidget(editor) {
codeEditor = editor;
}
QSize sizeHint() const override {
return QSize(codeEditor->lineNumberAreaWidth(), 0);
}
protected:
void paintEvent(QPaintEvent *event) override {
codeEditor->lineNumberAreaPaintEvent(event);
}
private:
CodeEditor *codeEditor;
};
#endif // CODEEDITOR_H

View File

@ -62,6 +62,7 @@ void MainWindow::loadFile()
} }
std::random_shuffle(allErrors.begin(), allErrors.end()); std::random_shuffle(allErrors.begin(), allErrors.end());
ui->results->addItems(allErrors.mid(0,100)); ui->results->addItems(allErrors.mid(0,100));
ui->results->sortItems();
} else { } else {
ui->results->addItems(allErrors); ui->results->addItems(allErrors);
} }

View File

@ -12,6 +12,7 @@ TARGET = triage
TEMPLATE = app TEMPLATE = app
QMAKE_CXXFLAGS += -std=c++11 QMAKE_CXXFLAGS += -std=c++11
INCLUDEPATH += ../../gui
# The following define makes your compiler emit warnings if you use # The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked as deprecated (the exact warnings # any feature of Qt which as been marked as deprecated (the exact warnings
@ -27,9 +28,9 @@ DEFINES += QT_DEPRECATED_WARNINGS
SOURCES += main.cpp\ SOURCES += main.cpp\
mainwindow.cpp \ mainwindow.cpp \
codeeditor.cpp ../../gui/codeeditor.cpp
HEADERS += mainwindow.h \ HEADERS += mainwindow.h \
codeeditor.h ../../gui/codeeditor.h
FORMS += mainwindow.ui FORMS += mainwindow.ui