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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (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 http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPAINTDEVICE_H
#define QPAINTDEVICE_H
#include <QtGui/qwindowdefs.h>
#include <QtCore/qrect.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
#if defined(Q_WS_QWS)
class QWSDisplay;
#endif
class QPaintEngine;
class Q_GUI_EXPORT QPaintDevice // device for QPainter
{
public:
enum PaintDeviceMetric {
PdmWidth = 1,
PdmHeight,
PdmWidthMM,
PdmHeightMM,
PdmNumColors,
PdmDepth,
PdmDpiX,
PdmDpiY,
PdmPhysicalDpiX,
PdmPhysicalDpiY
};
virtual ~QPaintDevice();
virtual int devType() const;
bool paintingActive() const;
virtual QPaintEngine *paintEngine() const = 0;
#if defined(Q_WS_QWS)
static QWSDisplay *qwsDisplay();
#endif
#ifdef Q_WS_WIN
virtual HDC getDC() const;
virtual void releaseDC(HDC hdc) const;
#endif
int width() const { return metric(PdmWidth); }
int height() const { return metric(PdmHeight); }
int widthMM() const { return metric(PdmWidthMM); }
int heightMM() const { return metric(PdmHeightMM); }
int logicalDpiX() const { return metric(PdmDpiX); }
int logicalDpiY() const { return metric(PdmDpiY); }
int physicalDpiX() const { return metric(PdmPhysicalDpiX); }
int physicalDpiY() const { return metric(PdmPhysicalDpiY); }
int numColors() const { return metric(PdmNumColors); }
int depth() const { return metric(PdmDepth); }
protected:
QPaintDevice();
virtual int metric(PaintDeviceMetric metric) const;
ushort painters; // refcount
private:
Q_DISABLE_COPY(QPaintDevice)
#if defined(Q_WS_X11) && defined(QT3_SUPPORT)
public:
QT3_SUPPORT Display *x11Display() const;
QT3_SUPPORT int x11Screen() const;
QT3_SUPPORT int x11Depth() const;
QT3_SUPPORT int x11Cells() const;
QT3_SUPPORT Qt::HANDLE x11Colormap() const;
QT3_SUPPORT bool x11DefaultColormap() const;
QT3_SUPPORT void *x11Visual() const;
QT3_SUPPORT bool x11DefaultVisual() const;
static QT3_SUPPORT Display *x11AppDisplay();
static QT3_SUPPORT int x11AppScreen();
static QT3_SUPPORT int x11AppDepth(int screen = -1);
static QT3_SUPPORT int x11AppCells(int screen = -1);
static QT3_SUPPORT Qt::HANDLE x11AppRootWindow(int screen = -1);
static QT3_SUPPORT Qt::HANDLE x11AppColormap(int screen = -1);
static QT3_SUPPORT void *x11AppVisual(int screen = -1);
static QT3_SUPPORT bool x11AppDefaultColormap(int screen =-1);
static QT3_SUPPORT bool x11AppDefaultVisual(int screen =-1);
static QT3_SUPPORT int x11AppDpiX(int screen = -1);
static QT3_SUPPORT int x11AppDpiY(int screen = -1);
static QT3_SUPPORT void x11SetAppDpiX(int, int);
static QT3_SUPPORT void x11SetAppDpiY(int, int);
#endif
friend class QPainter;
friend class QFontEngineMac;
friend class QX11PaintEngine;
};
#ifdef QT3_SUPPORT
QT3_SUPPORT Q_GUI_EXPORT
void bitBlt(QPaintDevice *dst, int dx, int dy,
const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
bool ignoreMask=false);
QT3_SUPPORT Q_GUI_EXPORT
void bitBlt(QPaintDevice *dst, int dx, int dy,
const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
int conversion_flags=0);
QT3_SUPPORT Q_GUI_EXPORT
void bitBlt(QPaintDevice *dst, const QPoint &dp,
const QPaintDevice *src, const QRect &sr=QRect(0,0,-1,-1),
bool ignoreMask=false);
#endif
/*****************************************************************************
Inline functions
*****************************************************************************/
inline int QPaintDevice::devType() const
{ return QInternal::UnknownDevice; }
inline bool QPaintDevice::paintingActive() const
{ return painters != 0; }
QT_END_NAMESPACE
QT_END_HEADER
#endif // QPAINTDEVICE_H
|
