source: trunk/src/gui/widgets/qlineedit_p.h@ 305

Last change on this file since 305 was 2, checked in by Dmitry A. Kuminov, 17 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 8.1 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtGui module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
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36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QLINEEDIT_P_H
43#define QLINEEDIT_P_H
44
45//
46// W A R N I N G
47// -------------
48//
49// This file is not part of the Qt API. It exists purely as an
50// implementation detail. This header file may change from version to
51// version without notice, or even be removed.
52//
53// We mean it.
54//
55
56#include "QtCore/qglobal.h"
57
58#ifndef QT_NO_LINEEDIT
59#include "private/qwidget_p.h"
60#include "QtGui/qlineedit.h"
61#include "QtGui/qtextlayout.h"
62#include "QtGui/qstyleoption.h"
63#include "QtCore/qbasictimer.h"
64#include "QtGui/qcompleter.h"
65#include "QtCore/qpointer.h"
66#include "QtGui/qlineedit.h"
67
68QT_BEGIN_NAMESPACE
69
70class QLineEditPrivate : public QWidgetPrivate
71{
72 Q_DECLARE_PUBLIC(QLineEdit)
73public:
74
75 QLineEditPrivate()
76 : cursor(0), preeditCursor(0), cursorTimer(0), frame(1),
77 cursorVisible(0), hideCursor(false), separator(0), readOnly(0),
78 dragEnabled(0), contextMenuEnabled(1), echoMode(0), textDirty(0),
79 selDirty(0), validInput(1), alignment(Qt::AlignLeading | Qt::AlignVCenter), ascent(0),
80 maxLength(32767), hscroll(0), vscroll(0), lastCursorPos(-1), maskData(0),
81 modifiedState(0), undoState(0), selstart(0), selend(0), userInput(false),
82 emitingEditingFinished(false), passwordEchoEditing(false)
83#ifndef QT_NO_COMPLETER
84 , completer(0)
85#endif
86 , leftTextMargin(0), topTextMargin(0), rightTextMargin(0), bottomTextMargin(0)
87 {
88 }
89
90 ~QLineEditPrivate()
91 {
92 delete [] maskData;
93 }
94 void init(const QString&);
95
96 QString text;
97 int cursor;
98 int preeditCursor;
99 int cursorTimer; // -1 for non blinking cursor.
100 QPoint tripleClick;
101 QBasicTimer tripleClickTimer;
102 uint frame : 1;
103 uint cursorVisible : 1;
104 uint hideCursor : 1; // used to hide the cursor inside preedit areas
105 uint separator : 1;
106 uint readOnly : 1;
107 uint dragEnabled : 1;
108 uint contextMenuEnabled : 1;
109 uint echoMode : 2;
110 uint textDirty : 1;
111 uint selDirty : 1;
112 uint validInput : 1;
113 uint alignment;
114 int ascent;
115 int maxLength;
116 int hscroll;
117 int vscroll;
118 int lastCursorPos;
119
120#ifndef QT_NO_CONTEXTMENU
121 QPointer<QAction> selectAllAction;
122#endif
123
124 inline void emitCursorPositionChanged();
125 bool sendMouseEventToInputContext(QMouseEvent *e);
126
127 void finishChange(int validateFromState = -1, bool update = false, bool edited = true);
128
129 QPointer<QValidator> validator;
130 struct MaskInputData {
131 enum Casemode { NoCaseMode, Upper, Lower };
132 QChar maskChar; // either the separator char or the inputmask
133 bool separator;
134 Casemode caseMode;
135 };
136 QString inputMask;
137 QChar blank;
138 MaskInputData *maskData;
139 inline int nextMaskBlank(int pos) {
140 int c = findInMask(pos, true, false);
141 separator |= (c != pos);
142 return (c != -1 ? c : maxLength);
143 }
144 inline int prevMaskBlank(int pos) {
145 int c = findInMask(pos, false, false);
146 separator |= (c != pos);
147 return (c != -1 ? c : 0);
148 }
149
150 void setCursorVisible(bool visible);
151
152
153 // undo/redo handling
154 enum CommandType { Separator, Insert, Remove, Delete, RemoveSelection, DeleteSelection, SetSelection };
155 struct Command {
156 inline Command() {}
157 inline Command(CommandType t, int p, QChar c, int ss, int se) : type(t),uc(c),pos(p),selStart(ss),selEnd(se) {}
158 uint type : 4;
159 QChar uc;
160 int pos, selStart, selEnd;
161 };
162 int modifiedState;
163 int undoState;
164 QVector<Command> history;
165 void addCommand(const Command& cmd);
166 void insert(const QString& s);
167 void del(bool wasBackspace = false);
168 void remove(int pos);
169
170 inline void separate() { separator = true; }
171 void undo(int until = -1);
172 void redo();
173 inline bool isUndoAvailable() const { return !readOnly && undoState; }
174 inline bool isRedoAvailable() const { return !readOnly && undoState < (int)history.size(); }
175
176 // selection
177 int selstart, selend;
178 inline bool allSelected() const { return !text.isEmpty() && selstart == 0 && selend == (int)text.length(); }
179 inline bool hasSelectedText() const { return !text.isEmpty() && selend > selstart; }
180 inline void deselect() { selDirty |= (selend > selstart); selstart = selend = 0; }
181 void removeSelectedText();
182#ifndef QT_NO_CLIPBOARD
183 void copy(bool clipboard = true) const;
184#endif
185 inline bool inSelection(int x) const
186 { if (selstart >= selend) return false;
187 int pos = xToPos(x, QTextLine::CursorOnCharacter); return pos >= selstart && pos < selend; }
188
189 // masking
190 void parseInputMask(const QString &maskFields);
191 bool isValidInput(QChar key, QChar mask) const;
192 bool hasAcceptableInput(const QString &text) const;
193 QString maskString(uint pos, const QString &str, bool clear = false) const;
194 QString clearString(uint pos, uint len) const;
195 QString stripString(const QString &str) const;
196 int findInMask(int pos, bool forward, bool findSeparator, QChar searchChar = QChar()) const;
197
198 // input methods
199 bool composeMode() const { return !textLayout.preeditAreaText().isEmpty(); }
200
201 // complex text layout
202 QTextLayout textLayout;
203 void updateTextLayout();
204 void moveCursor(int pos, bool mark = false);
205 void setText(const QString& txt, int pos = -1, bool edited = true);
206 int xToPos(int x, QTextLine::CursorPosition = QTextLine::CursorBetweenCharacters) const;
207 QRect cursorRect() const;
208 bool fixup();
209
210 QRect adjustedContentsRect() const;
211
212#ifndef QT_NO_DRAGANDDROP
213 // drag and drop
214 QPoint dndPos;
215 QBasicTimer dndTimer;
216 void drag();
217#endif
218
219 void _q_clipboardChanged();
220 void _q_handleWindowActivate();
221 void _q_deleteSelected();
222 bool userInput;
223 bool emitingEditingFinished;
224
225#ifdef QT_KEYPAD_NAVIGATION
226 QBasicTimer deleteAllTimer; // keypad navigation
227 QString origText;
228#endif
229
230 bool passwordEchoEditing;
231 void updatePasswordEchoEditing(bool editing);
232
233#ifndef QT_NO_COMPLETER
234 QPointer<QCompleter> completer;
235 void complete(int key = -1);
236 void _q_completionHighlighted(QString);
237 bool advanceToEnabledItem(int n);
238#endif
239
240 int leftTextMargin;
241 int topTextMargin;
242 int rightTextMargin;
243 int bottomTextMargin;
244};
245
246#endif // QT_NO_LINEEDIT
247
248QT_END_NAMESPACE
249
250#endif // QLINEEDIT_P_H
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