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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QLINEEDIT_P_H
#define QLINEEDIT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "QtCore/qglobal.h"
#ifndef QT_NO_LINEEDIT
#include "private/qwidget_p.h"
#include "QtGui/qlineedit.h"
#include "QtGui/qtextlayout.h"
#include "QtGui/qstyleoption.h"
#include "QtCore/qbasictimer.h"
#include "QtGui/qcompleter.h"
#include "QtCore/qpointer.h"
#include "QtGui/qlineedit.h"
QT_BEGIN_NAMESPACE
class QLineEditPrivate : public QWidgetPrivate
{
Q_DECLARE_PUBLIC(QLineEdit)
public:
QLineEditPrivate()
: cursor(0), preeditCursor(0), cursorTimer(0), frame(1),
cursorVisible(0), hideCursor(false), separator(0), readOnly(0),
dragEnabled(0), contextMenuEnabled(1), echoMode(0), textDirty(0),
selDirty(0), validInput(1), clickCausedFocus(0),
alignment(Qt::AlignLeading | Qt::AlignVCenter), ascent(0),
maxLength(32767), hscroll(0), vscroll(0), lastCursorPos(-1), maskData(0),
modifiedState(0), undoState(0), selstart(0), selend(0), userInput(false),
emitingEditingFinished(false), passwordEchoEditing(false)
#ifndef QT_NO_COMPLETER
, completer(0)
#endif
, leftTextMargin(0), topTextMargin(0), rightTextMargin(0), bottomTextMargin(0)
{
}
~QLineEditPrivate()
{
delete [] maskData;
}
void init(const QString&);
QString text;
int cursor;
int preeditCursor;
int cursorTimer; // -1 for non blinking cursor.
QPoint tripleClick;
QBasicTimer tripleClickTimer;
uint frame : 1;
uint cursorVisible : 1;
uint hideCursor : 1; // used to hide the cursor inside preedit areas
uint separator : 1;
uint readOnly : 1;
uint dragEnabled : 1;
uint contextMenuEnabled : 1;
uint echoMode : 2;
uint textDirty : 1;
uint selDirty : 1;
uint validInput : 1;
uint clickCausedFocus : 1;
uint alignment;
int ascent;
int maxLength;
int hscroll;
int vscroll;
int lastCursorPos;
#ifndef QT_NO_CONTEXTMENU
QPointer<QAction> selectAllAction;
#endif
inline void emitCursorPositionChanged();
bool sendMouseEventToInputContext(QMouseEvent *e);
void finishChange(int validateFromState = -1, bool update = false, bool edited = true);
QPointer<QValidator> validator;
struct MaskInputData {
enum Casemode { NoCaseMode, Upper, Lower };
QChar maskChar; // either the separator char or the inputmask
bool separator;
Casemode caseMode;
};
QString inputMask;
QChar blank;
MaskInputData *maskData;
inline int nextMaskBlank(int pos) {
int c = findInMask(pos, true, false);
separator |= (c != pos);
return (c != -1 ? c : maxLength);
}
inline int prevMaskBlank(int pos) {
int c = findInMask(pos, false, false);
separator |= (c != pos);
return (c != -1 ? c : 0);
}
void setCursorVisible(bool visible);
// undo/redo handling
enum CommandType { Separator, Insert, Remove, Delete, RemoveSelection, DeleteSelection, SetSelection };
struct Command {
inline Command() {}
inline Command(CommandType t, int p, QChar c, int ss, int se) : type(t),uc(c),pos(p),selStart(ss),selEnd(se) {}
uint type : 4;
QChar uc;
int pos, selStart, selEnd;
};
int modifiedState;
int undoState;
QVector<Command> history;
void addCommand(const Command& cmd);
void insert(const QString& s);
void del(bool wasBackspace = false);
void remove(int pos);
inline void separate() { separator = true; }
void undo(int until = -1);
void redo();
inline bool isUndoAvailable() const { return !readOnly && undoState; }
inline bool isRedoAvailable() const { return !readOnly && undoState < (int)history.size(); }
// selection
int selstart, selend;
inline bool allSelected() const { return !text.isEmpty() && selstart == 0 && selend == (int)text.length(); }
inline bool hasSelectedText() const { return !text.isEmpty() && selend > selstart; }
inline void deselect() { selDirty |= (selend > selstart); selstart = selend = 0; }
void removeSelectedText();
#ifndef QT_NO_CLIPBOARD
void copy(bool clipboard = true) const;
#endif
inline bool inSelection(int x) const
{ if (selstart >= selend) return false;
int pos = xToPos(x, QTextLine::CursorOnCharacter); return pos >= selstart && pos < selend; }
// masking
void parseInputMask(const QString &maskFields);
bool isValidInput(QChar key, QChar mask) const;
bool hasAcceptableInput(const QString &text) const;
QString maskString(uint pos, const QString &str, bool clear = false) const;
QString clearString(uint pos, uint len) const;
QString stripString(const QString &str) const;
int findInMask(int pos, bool forward, bool findSeparator, QChar searchChar = QChar()) const;
// input methods
bool composeMode() const { return !textLayout.preeditAreaText().isEmpty(); }
// complex text layout
QTextLayout textLayout;
void updateTextLayout();
void moveCursor(int pos, bool mark = false);
void setText(const QString& txt, int pos = -1, bool edited = true);
int xToPos(int x, QTextLine::CursorPosition = QTextLine::CursorBetweenCharacters) const;
QRect cursorRect() const;
bool fixup();
QRect adjustedContentsRect() const;
#ifndef QT_NO_DRAGANDDROP
// drag and drop
QPoint dndPos;
QBasicTimer dndTimer;
void drag();
#endif
void _q_clipboardChanged();
void _q_handleWindowActivate();
void _q_deleteSelected();
bool userInput;
bool emitingEditingFinished;
#ifdef QT_KEYPAD_NAVIGATION
QBasicTimer deleteAllTimer; // keypad navigation
QString origText;
#endif
bool passwordEchoEditing;
void updatePasswordEchoEditing(bool editing);
#ifndef QT_NO_COMPLETER
QPointer<QCompleter> completer;
void complete(int key = -1);
void _q_completionHighlighted(QString);
bool advanceToEnabledItem(int n);
#endif
int leftTextMargin;
int topTextMargin;
int rightTextMargin;
int bottomTextMargin;
};
#endif // QT_NO_LINEEDIT
QT_END_NAMESPACE
#endif // QLINEEDIT_P_H
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