/quassel-0.7.3/src/uisupport/multilineedit.h

  1/***************************************************************************
  2 *   Copyright (C) 2005-2010 by the Quassel Project                        *
  3 *   devel@quassel-irc.org                                                 *
  4 *                                                                         *
  5 *   This program is free software; you can redistribute it and/or modify  *
  6 *   it under the terms of the GNU General Public License as published by  *
  7 *   the Free Software Foundation; either version 2 of the License, or     *
  8 *   (at your option) version 3.                                           *
  9 *                                                                         *
 10 *   This program is distributed in the hope that it will be useful,       *
 11 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 12 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 13 *   GNU General Public License for more details.                          *
 14 *                                                                         *
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 16 *   along with this program; if not, write to the                         *
 17 *   Free Software Foundation, Inc.,                                       *
 18 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 19 ***************************************************************************/
 20
 21#ifndef MULTILINEEDIT_H_
 22#define MULTILINEEDIT_H_
 23
 24#include <QKeyEvent>
 25#include <QHash>
 26
 27#ifdef HAVE_KDE
 28#  include <KDE/KTextEdit>
 29#  define MultiLineEditParent KTextEdit
 30#else
 31#  include <QTextEdit>
 32#  define MultiLineEditParent QTextEdit
 33#endif
 34
 35class QKeyEvent;
 36class TabCompleter;
 37
 38class MultiLineEdit : public MultiLineEditParent {
 39  Q_OBJECT
 40
 41public:
 42  enum Mode {
 43    SingleLine,
 44    MultiLine
 45  };
 46
 47  MultiLineEdit(QWidget *parent = 0);
 48  ~MultiLineEdit();
 49
 50  void setCustomFont(const QFont &); // should be used instead setFont(), so we can set our size correctly
 51
 52  // Compatibility methods with the rest of the classes which still expect this to be a QLineEdit
 53  inline QString text() const { return toPlainText(); }
 54  inline QString html() const { return toHtml(); }
 55  inline int cursorPosition() const { return textCursor().position(); }
 56  inline void insert(const QString &newText) { insertPlainText(newText); }
 57  inline void backspace() { keyPressEvent(new QKeyEvent(QEvent::KeyPress, Qt::Key_Backspace, Qt::NoModifier)); }
 58  inline bool hasSelectedText() const { return textCursor().hasSelection(); }
 59
 60  inline bool isSingleLine() const { return _singleLine; }
 61  inline bool pasteProtectionEnabled() const { return _pasteProtectionEnabled; }
 62
 63  virtual QSize sizeHint() const;
 64  virtual QSize minimumSizeHint() const;
 65
 66  inline QString mircColorFromRGB(QString rgbColor) const { return _mircColorMap.key(rgbColor); }
 67  inline QString rgbColorFromMirc(QString mircColor) const { return _mircColorMap[mircColor]; }
 68  inline QMap<QString, QString>  mircColorMap() const { return _mircColorMap; }
 69
 70  inline QStringList history() const { return _history; }
 71  inline QHash<int, QString> tempHistory() const { return _tempHistory; }
 72  inline qint32 idx() const { return _idx; }
 73  inline bool emacsMode() const { return _emacsMode; }
 74
 75public slots:
 76  void setMode(Mode mode);
 77  void setMinHeight(int numLines);
 78  void setMaxHeight(int numLines);
 79  void setEmacsMode(bool enable = true);
 80  void setScrollBarsEnabled(bool enable = true);
 81  void setSpellCheckEnabled(bool enable = true);
 82  void setPasteProtectionEnabled(bool enable = true, QWidget *msgBoxParent = 0);
 83
 84  // Note: Enabling wrap will make isSingleLine() not work correctly, so only use this if minHeight() > 1!
 85  void setWordWrapEnabled(bool enable = true);
 86
 87  inline void setHistory(QStringList history) { _history = history; }
 88  inline void setTempHistory(QHash<int, QString> tempHistory) { _tempHistory = tempHistory; }
 89  inline void setIdx(qint32 idx) { _idx = idx; }
 90
 91signals:
 92  void textEntered(const QString &text);
 93  void noTextEntered();
 94
 95protected:
 96  virtual bool event(QEvent *e);
 97  virtual void keyPressEvent(QKeyEvent * event);
 98  virtual void resizeEvent(QResizeEvent *event);
 99
100private slots:
101  void on_returnPressed();
102  void on_returnPressed(const QString &text);
103  void on_textChanged();
104  void on_documentHeightChanged(qreal height);
105
106  bool addToHistory(const QString &text, bool temporary = false);
107  void historyMoveForward();
108  void historyMoveBack();
109
110  QString convertRichtextToMircCodes();
111  QString convertMircCodesToHtml(const QString &text);
112  bool mircCodesChanged(QTextCursor &cursor, QTextCursor &peekcursor);
113
114private:
115  QStringList _history;
116  QHash<int, QString> _tempHistory;
117  qint32 _idx;
118  Mode _mode;
119  bool _singleLine;
120  int _minHeight;
121  int _maxHeight;
122  bool _scrollBarsEnabled;
123  bool _pasteProtectionEnabled;
124  bool _emacsMode;
125
126  QSize _sizeHint;
127  qreal _lastDocumentHeight;
128
129  QMap<QString, QString> _mircColorMap;
130
131  void reset();
132  void showHistoryEntry();
133  void updateScrollBars();
134  void updateSizeHint();
135};
136
137#endif