utils/themeeditor/gui/codeeditor.h

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  35
  36 #ifndef CODEEDITOR_H
  37 #define CODEEDITOR_H
  38
  39 #include <QPlainTextEdit>
  40 #include <QObject>
  41 #include <QSettings>
  42
  43 #include "syntaxcompleter.h"
  44
  45 QT_BEGIN_NAMESPACE
  46 class QPaintEvent;
  47 class QResizeEvent;
  48 class QSize;
  49 class QWidget;
  50 QT_END_NAMESPACE
  51
  52 class LineNumberArea;
  53
  54 //![codeeditordefinition]
  55
  56 class CodeEditor : public QPlainTextEdit
  57 {
  58     Q_OBJECT
  59
  60 public:
  61     CodeEditor(QWidget *parent = 0);
  62     virtual ~CodeEditor(){ }
  63
  64     void lineNumberAreaPaintEvent(QPaintEvent *event);
  65     int lineNumberAreaWidth();
  66     void addError(int line){ errors.append(line); }
  67     void clearErrors(){ errors.clear(); }
  68     void setErrorColor(QColor color){ errorColor = color; }
  69     bool isError(int line){ return errors.contains(line); }
  70     bool hasErrors(){ return !errors.isEmpty(); }
  71
  72 protected:
  73     void resizeEvent(QResizeEvent *event);
  74     void keyPressEvent(QKeyEvent *event);
  75
  76 private slots:
  77     void updateLineNumberAreaWidth(int newBlockCount);
  78     void updateLineNumberArea(const QRect &, int);
  79     void cursorMoved();
  80     void insertTag();
  81
  82 private:
  83     QWidget *lineNumberArea;
  84     QList<int> errors;
  85     QColor errorColor;
  86     SyntaxCompleter completer;
  87     QSettings settings;
  88
  89     int tagBegin;
  90     int tagEnd;
  91     int docLength;
  92 };
  93
  94 //![codeeditordefinition]
  95 //![extraarea]
  96
  97 class LineNumberArea : public QWidget
  98 {
  99 public:
 100     LineNumberArea(CodeEditor *editor) : QWidget(editor) {
 101         codeEditor = editor;
 102     }
 103
 104     QSize sizeHint() const {
 105         return QSize(codeEditor->lineNumberAreaWidth(), 0);
 106     }
 107
 108 protected:
 109     void paintEvent(QPaintEvent *event) {
 110         codeEditor->lineNumberAreaPaintEvent(event);
 111     }
 112
 113 private:
 114     CodeEditor *codeEditor;
 115 };
 116
 117 //![extraarea]
 118
 119 #endif