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
120
121
122
123
|
/* This file is part of the KDE project
Copyright (c) 2001 Simon Hausmann <hausmann@kde.org>
Copyright (C) 2002, 2003, 2004 Nicolas GOUTTE <goutte@kde.org>
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 __koPictureImage_h__
#define __koPictureImage_h__
#include "KoPictureBase.h"
#include <qstring.h>
class KoPictureImagePrivate;
// TODO: fix documentation
/**
* @internal
* KoPictureImage is a container class for a QImage-based picture
* \todo remove private class, as the header is not installed
*/
class KoPictureImage : public KoPictureBase
{
public:
/**
* Default constructor.
*/
KoPictureImage();
/**
* Destructor.
*/
virtual ~KoPictureImage();
KoPictureType::Type getType(void) const;
KoPictureBase* newCopy(void) const;
/**
* Returns true if the picture is null.
*/
virtual bool isNull(void) const;
/**
* @brief Draw the image in a painter.
*
* No, this isn't as simple as painter.drawPixmap().
* This method ensures that the best quality is used when printing, scaling the painter.
*
* The parameter @p fastMode allows the picture to be re-sized and drawn quicker if possible
*
* The parameters @p width, @p height define the desired size for the image
* Note that the image is being scaled to that size using scale() - except when printing.
* This avoids scaling the image at each paint event.
*
* The other parameters are very similar to QPainter::drawPixmap :
* (@p x, @p y) define the position in the painter,
* (@p sx, @p sy) specify the top-left point in pixmap that is to be drawn. The default is (0, 0).
* (@p sw, @p sh) specify the size of the pixmap that is to be drawn. The default, (-1, -1), means all the way to the bottom
* right of the pixmap.
*/
virtual void draw(QPainter& painter, int x, int y, int width, int height, int sx = 0, int sy = 0, int sw = -1, int sh = -1, bool fastMode = false);
virtual QDragObject* dragObject( QWidget *dragSource = 0L, const char *name = 0L );
virtual bool loadData(const QByteArray& array, const QString& extension);
virtual bool save(QIODevice* io) const;
virtual QSize getOriginalSize(void) const;
virtual QPixmap generatePixmap(const QSize& size, bool smoothScale = false);
virtual QString getMimeType(const QString& extension) const;
/**
* Generate a QImage
* (always in slow mode)
*/
virtual QImage generateImage(const QSize& size);
virtual bool hasAlphaBuffer() const
{ return m_originalImage.hasAlphaBuffer(); }
virtual void setAlphaBuffer(bool enable)
{ m_originalImage.setAlphaBuffer(enable); }
virtual QImage createAlphaMask(int conversion_flags = 0) const
{ return m_originalImage.createAlphaMask(conversion_flags); }
virtual void clearCache(void);
protected:
QPixmap getPixmap(QImage& image);
void scaleAndCreatePixmap(const QSize& size, bool fastMode=false);
private:
QImage m_originalImage; ///< Image as Qimage
QByteArray m_rawData; ///< Binary copy of the loaded image file
QPixmap m_cachedPixmap; ///< Cached pixmap
QSize m_cachedSize; ///< size of the currently cached pixmap @see m_cachedPixmap
/**
* true, if the last cached image was done using fast mode.
* false, if the last cached image was done using slow mode.
*/
bool m_cacheIsInFastMode;
class Private;
Private* d;
};
#endif /* __koPictureImage_h__ */
|
