source: trunk/src/gui/widgets/qplaintextedit_p.h@ 603

Last change on this file since 603 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.

File size: 5.7 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the QtGui module of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this 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.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef QPLAINTEXTEDIT_P_H
43#define QPLAINTEXTEDIT_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 "private/qabstractscrollarea_p.h"
57#include "QtGui/qtextdocumentfragment.h"
58#include "QtGui/qscrollbar.h"
59#include "QtGui/qtextcursor.h"
60#include "QtGui/qtextformat.h"
61#include "QtGui/qmenu.h"
62#include "QtGui/qabstracttextdocumentlayout.h"
63#include "QtCore/qbasictimer.h"
64#include "private/qtextcontrol_p.h"
65#include "qplaintextedit.h"
66
67#ifndef QT_NO_TEXTEDIT
68
69QT_BEGIN_NAMESPACE
70
71class QMimeData;
72
73class QPlainTextEdit;
74class ExtraArea;
75
76class QPlainTextEditControl : public QTextControl
77{
78 Q_OBJECT
79public:
80 QPlainTextEditControl(QPlainTextEdit *parent);
81
82
83 QMimeData *createMimeDataFromSelection() const;
84 bool canInsertFromMimeData(const QMimeData *source) const;
85 void insertFromMimeData(const QMimeData *source);
86 int hitTest(const QPointF &point, Qt::HitTestAccuracy = Qt::FuzzyHit) const;
87 QRectF blockBoundingRect(const QTextBlock &block) const;
88 inline QRectF cursorRect(const QTextCursor &cursor) const {
89 QRectF r = QTextControl::cursorRect(cursor);
90 r.setLeft(qMax(r.left(), (qreal) 0.));
91 return r;
92 }
93 inline QRectF cursorRect() { return cursorRect(textCursor()); }
94 void ensureCursorVisible() {
95 textEdit->ensureCursorVisible();
96 emit microFocusChanged();
97 }
98
99
100 QPlainTextEdit *textEdit;
101 int topBlock;
102 QTextBlock firstVisibleBlock() const;
103
104 QVariant loadResource(int type, const QUrl &name) {
105 return textEdit->loadResource(type, name);
106 }
107
108};
109
110
111class QPlainTextEditPrivate : public QAbstractScrollAreaPrivate
112{
113 Q_DECLARE_PUBLIC(QPlainTextEdit)
114public:
115 QPlainTextEditPrivate();
116
117 void init(const QString &txt = QString());
118 void _q_repaintContents(const QRectF &contentsRect);
119
120 inline QPoint mapToContents(const QPoint &point) const
121 { return QPoint(point.x() + horizontalOffset(), point.y() + verticalOffset()); }
122
123 void _q_adjustScrollbars();
124 void _q_verticalScrollbarActionTriggered(int action);
125 void ensureViewportLayouted();
126 void relayoutDocument();
127
128 void pageUpDown(QTextCursor::MoveOperation op, QTextCursor::MoveMode moveMode, bool moveCursor = true);
129
130 inline int horizontalOffset() const
131 { return (q_func()->isRightToLeft() ? (hbar->maximum() - hbar->value()) : hbar->value()); }
132 int verticalOffset(int topBlock, int topLine) const;
133 int verticalOffset() const;
134
135 inline void sendControlEvent(QEvent *e)
136 { control->processEvent(e, QPointF(horizontalOffset(), verticalOffset()), viewport); }
137
138 void updateDefaultTextOption();
139
140 QPlainTextEditControl *control;
141
142 bool tabChangesFocus;
143
144 QBasicTimer autoScrollTimer;
145 QPoint autoScrollDragPos;
146
147 QPlainTextEdit::LineWrapMode lineWrap;
148 QTextOption::WrapMode wordWrap;
149
150 uint showCursorOnInitialShow : 1;
151 uint backgroundVisible : 1;
152 uint centerOnScroll : 1;
153 uint inDrag : 1;
154 uint clickCausedFocus : 1;
155
156 int topLine;
157
158 void setTopLine(int visualTopLine, int dx = 0);
159 void setTopBlock(int newTopBlock, int newTopLine, int dx = 0);
160
161 void ensureVisible(int position, bool center, bool forceCenter = false);
162 void ensureCursorVisible(bool center = false);
163 void updateViewport();
164
165 QPointer<QPlainTextDocumentLayout> documentLayoutPtr;
166
167 void append(const QString &text, Qt::TextFormat format = Qt::AutoText);
168
169 qreal pageUpDownLastCursorY;
170 bool pageUpDownLastCursorYIsValid;
171
172
173#ifdef QT_KEYPAD_NAVIGATION
174 QBasicTimer deleteAllTimer;
175#endif
176
177 void _q_cursorPositionChanged();
178 void _q_modificationChanged(bool);
179
180 int originalOffsetY;
181};
182
183QT_END_NAMESPACE
184
185#endif // QT_NO_TEXTEDIT
186
187#endif // QPLAINTEXTEDIT_P_H
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