1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/* This file is part of the KDE project
Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef KFORMULAWIDGET_H
#define KFORMULAWIDGET_H
#include <qdom.h>
#include <qpixmap.h>
#include <qpoint.h>
#include <qwidget.h>
#include "kformuladefs.h"
#include "kformulaview.h"
KFORMULA_NAMESPACE_BEGIN
class BasicElement;
class FormulaCursor;
class FormulaElement;
class Container;
KFORMULA_NAMESPACE_END
using namespace KFormula;
/**
* The view. A widget that shows the formula. There are methods
* to move the cursor around. To edit the formula use the document.
*/
class KFormulaWidget : public QWidget {
Q_OBJECT
public:
KFormulaWidget(Container*, QWidget* parent=0, const char* name=0, WFlags f=0);
~KFormulaWidget();
/**
* @returns the point inside the formula widget where the cursor is.
*/
QPoint getCursorPoint() const;
/**
* Puts the widget in read only mode.
*/
void setReadOnly(bool ro);
public slots:
void slotSelectAll();
signals:
/**
* Is emitted every time the cursor might have changed.
*/
void cursorChanged(bool visible, bool selecting);
protected slots:
/**
* The formula has changed and needs to be redrawn.
*/
void slotFormulaChanged(int width, int height);
void slotCursorChanged(bool visible, bool selecting);
protected:
virtual void mousePressEvent(QMouseEvent* event);
virtual void mouseReleaseEvent(QMouseEvent* event);
virtual void mouseDoubleClickEvent(QMouseEvent* event);
virtual void mouseMoveEvent(QMouseEvent* event);
virtual void wheelEvent(QWheelEvent* event);
virtual void paintEvent(QPaintEvent* event);
virtual void keyPressEvent(QKeyEvent* event);
virtual void focusInEvent(QFocusEvent* event);
virtual void focusOutEvent(QFocusEvent* event);
/**
* The document we show.
*/
Container* getDocument();
/**
* Our cursor.
*/
FormulaCursor* getCursor();
private:
/**
* This widget is a wrapper around the actual view.
*/
View formulaView;
QPixmap buffer;
};
#endif // KFORMULAWIDGET_H
|
