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39
40#ifndef QPLATFORMSCREEN_H
41#define QPLATFORMSCREEN_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is part of the QPA API and is not meant to be used
48// in applications. Usage of this API may make your code
49// source and binary incompatible with future versions of Qt.
50//
51
52#include <QtGui/qtguiglobal.h>
53#include <QtCore/qmetatype.h>
54#include <QtCore/qnamespace.h>
55#include <QtCore/qcoreevent.h>
56#include <QtCore/qvariant.h>
57#include <QtCore/qrect.h>
58#include <QtCore/qobject.h>
59
60#include <QtGui/qcursor.h>
61#include <QtGui/qimage.h>
62#include <QtGui/qwindowdefs.h>
63#include <qpa/qplatformpixmap.h>
64
65QT_BEGIN_NAMESPACE
66
67
68class QPlatformBackingStore;
69class QPlatformScreenPrivate;
70class QPlatformWindow;
71class QPlatformCursor;
72class QScreen;
73class QSurfaceFormat;
74
75typedef QPair<qreal, qreal> QDpi;
76
77
78class Q_GUI_EXPORT QPlatformScreen
79{
80 Q_DECLARE_PRIVATE(QPlatformScreen)
81
82public:
83 Q_DISABLE_COPY_MOVE(QPlatformScreen)
84
85 enum SubpixelAntialiasingType { // copied from qfontengine_p.h since we can't include private headers
86 Subpixel_None,
87 Subpixel_RGB,
88 Subpixel_BGR,
89 Subpixel_VRGB,
90 Subpixel_VBGR
91 };
92
93 enum PowerState {
94 PowerStateOn,
95 PowerStateStandby,
96 PowerStateSuspend,
97 PowerStateOff
98 };
99
100 struct Mode {
101 QSize size;
102 qreal refreshRate;
103 };
104
105 QPlatformScreen();
106 virtual ~QPlatformScreen();
107
108 virtual QPixmap grabWindow(WId window, int x, int y, int width, int height) const;
109
110 virtual QRect geometry() const = 0;
111 virtual QRect availableGeometry() const {return geometry();}
112
113 virtual int depth() const = 0;
114 virtual QImage::Format format() const = 0;
115
116 virtual QSizeF physicalSize() const;
117 virtual QDpi logicalDpi() const;
118 virtual qreal devicePixelRatio() const;
119 virtual qreal pixelDensity() const;
120
121 virtual qreal refreshRate() const;
122
123 virtual Qt::ScreenOrientation nativeOrientation() const;
124 virtual Qt::ScreenOrientation orientation() const;
125 virtual void setOrientationUpdateMask(Qt::ScreenOrientations mask);
126
127 virtual QWindow *topLevelAt(const QPoint &point) const;
128 QWindowList windows() const;
129
130 virtual QList<QPlatformScreen *> virtualSiblings() const;
131 const QPlatformScreen *screenForPosition(const QPoint &point) const;
132
133 QScreen *screen() const;
134
135 //jl: should this function be in QPlatformIntegration
136 //jl: maybe screenForWindow is a better name?
137 static QPlatformScreen *platformScreenForWindow(const QWindow *window);
138
139 virtual QString name() const { return QString(); }
140
141 virtual QString manufacturer() const;
142 virtual QString model() const;
143 virtual QString serialNumber() const;
144
145 virtual QPlatformCursor *cursor() const;
146 virtual SubpixelAntialiasingType subpixelAntialiasingTypeHint() const;
147
148 virtual PowerState powerState() const;
149 virtual void setPowerState(PowerState state);
150
151 virtual QVector<Mode> modes() const;
152
153 virtual int currentMode() const;
154 virtual int preferredMode() const;
155
156 static int angleBetween(Qt::ScreenOrientation a, Qt::ScreenOrientation b);
157 static QTransform transformBetween(Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &target);
158 static QRect mapBetween(Qt::ScreenOrientation a, Qt::ScreenOrientation b, const QRect &rect);
159
160 // The platform screen's geometry in device independent coordinates
161 QRect deviceIndependentGeometry() const;
162
163protected:
164 void resizeMaximizedWindows();
165
166 QScopedPointer<QPlatformScreenPrivate> d_ptr;
167
168private:
169 friend class QScreenPrivate;
170};
171
172QT_END_NAMESPACE
173
174#endif // QPLATFORMSCREEN_H
175