1 /****************************************************************************
2 **
3 ** Copyright (C) 2016 The Qt Company Ltd.
4 ** Contact: https://www.qt.io/licensing/
5 **
6 ** This file is part of the QtGui module of the Qt Toolkit.
7 **
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** Commercial License Usage
10 ** Licensees holding valid commercial Qt licenses may use this file in
11 ** accordance with the commercial license agreement provided with the
12 ** Software or, alternatively, in accordance with the terms contained in
13 ** a written agreement between you and The Qt Company. For licensing terms
14 ** and conditions see https://www.qt.io/terms-conditions. For further
15 ** information use the contact form at https://www.qt.io/contact-us.
16 **
17 ** GNU Lesser General Public License Usage
18 ** Alternatively, this file may be used under the terms of the GNU Lesser
19 ** General Public License version 3 as published by the Free Software
20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the
21 ** packaging of this file. Please review the following information to
22 ** ensure the GNU Lesser General Public License version 3 requirements
23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24 **
25 ** GNU General Public License Usage
26 ** Alternatively, this file may be used under the terms of the GNU
27 ** General Public License version 2.0 or (at your option) the GNU General
28 ** Public license version 3 or any later version approved by the KDE Free
29 ** Qt Foundation. The licenses are as published by the Free Software
30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31 ** included in the packaging of this file. Please review the following
32 ** information to ensure the GNU General Public License requirements will
33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34 ** https://www.gnu.org/licenses/gpl-3.0.html.
35 **
36 ** $QT_END_LICENSE$
37 **
38 ****************************************************************************/
39 
40 #ifndef QWINDOW_P_H
41 #define QWINDOW_P_H
42 
43 //
44 //  W A R N I N G
45 //  -------------
46 //
47 // This file is not part of the Qt API.  It exists purely as an
48 // implementation detail.  This header file may change from version to
49 // version without notice, or even be removed.
50 //
51 // We mean it.
52 //
53 
54 #include <QtGui/private/qtguiglobal_p.h>
55 #include <QtGui/qscreen.h>
56 #include <QtGui/qwindow.h>
57 #include <qpa/qplatformwindow.h>
58 
59 #include <QtCore/private/qobject_p.h>
60 #include <QtCore/qelapsedtimer.h>
61 #include <QtGui/QIcon>
62 
63 QT_BEGIN_NAMESPACE
64 
65 #define QWINDOWSIZE_MAX ((1<<24)-1)
66 
67 class Q_GUI_EXPORT QWindowPrivate : public QObjectPrivate
68 {
69     Q_DECLARE_PUBLIC(QWindow)
70 
71 public:
72     enum PositionPolicy
73     {
74         WindowFrameInclusive,
75         WindowFrameExclusive
76     };
77 
QWindowPrivate()78     QWindowPrivate()
79         : QObjectPrivate()
80     {
81         isWindow = true;
82     }
83 
84     void init(QScreen *targetScreen = nullptr);
85 
86     void maybeQuitOnLastWindowClosed();
87 #ifndef QT_NO_CURSOR
88     void setCursor(const QCursor *c = nullptr);
89     bool applyCursor();
90 #endif
91 
92     QPoint globalPosition() const;
93 
94     QWindow *topLevelWindow(QWindow::AncestorMode mode = QWindow::IncludeTransients) const;
95 
96 #if QT_CONFIG(opengl)
97     virtual QOpenGLContext *shareContext() const;
98 #endif
99 
eventReceiver()100     virtual QWindow *eventReceiver() { Q_Q(QWindow); return q; }
101 
102     virtual void setVisible(bool visible);
103     void updateVisibility();
104     void _q_clearAlert();
105 
106     enum SiblingPosition { PositionTop, PositionBottom };
107     void updateSiblingPosition(SiblingPosition);
108 
109     bool windowRecreationRequired(QScreen *newScreen) const;
110     void create(bool recursive, WId nativeHandle = 0);
111     void destroy();
112     void setTopLevelScreen(QScreen *newScreen, bool recreate);
113     void connectToScreen(QScreen *topLevelScreen);
114     void disconnectFromScreen();
115     void emitScreenChangedRecursion(QScreen *newScreen);
116     QScreen *screenForGeometry(const QRect &rect) const;
117     void setTransientParent(QWindow *parent);
118 
119     virtual void clearFocusObject();
120     virtual QRectF closestAcceptableGeometry(const QRectF &rect) const;
121 
processSafeAreaMarginsChanged()122     virtual void processSafeAreaMarginsChanged() {};
123 
isPopup()124     bool isPopup() const { return (windowFlags & Qt::WindowType_Mask) == Qt::Popup; }
setAutomaticPositionAndResizeEnabled(bool a)125     void setAutomaticPositionAndResizeEnabled(bool a)
126     { positionAutomatic = resizeAutomatic = a; }
127 
get(QWindow * window)128     static QWindowPrivate *get(QWindow *window) { return window->d_func(); }
129 
130     static Qt::WindowState effectiveState(Qt::WindowStates);
131 
132     // ### Qt6: unused
allowClickThrough(const QPoint &)133     virtual bool allowClickThrough(const QPoint &) const { return true; }
134 
135     QWindow::SurfaceType surfaceType = QWindow::RasterSurface;
136     Qt::WindowFlags windowFlags = Qt::Window;
137     QWindow *parentWindow = nullptr;
138     QPlatformWindow *platformWindow = nullptr;
139     bool visible= false;
140     bool visibilityOnDestroy = false;
141     bool exposed = false;
142     QSurfaceFormat requestedFormat;
143     QString windowTitle;
144     QString windowFilePath;
145     QIcon windowIcon;
146     QRect geometry;
147     Qt::WindowStates windowState = Qt::WindowNoState;
148     QWindow::Visibility visibility = QWindow::Hidden;
149     bool resizeEventPending = true;
150     bool receivedExpose = false;
151     PositionPolicy positionPolicy = WindowFrameExclusive;
152     bool positionAutomatic = true;
153     // resizeAutomatic suppresses resizing by QPlatformWindow::initialGeometry().
154     // It also indicates that width/height=0 is acceptable (for example, for
155     // the QRollEffect widget) and is thus not cleared in setGeometry().
156     // An alternative approach might be using -1,-1 as a default size.
157     bool resizeAutomatic = true;
158     Qt::ScreenOrientation contentOrientation = Qt::PrimaryOrientation;
159     qreal opacity= 1;
160     QRegion mask;
161 
162     QSize minimumSize = {0, 0};
163     QSize maximumSize = {QWINDOWSIZE_MAX, QWINDOWSIZE_MAX};
164     QSize baseSize;
165     QSize sizeIncrement;
166 
167     Qt::WindowModality modality = Qt::NonModal;
168     bool blockedByModalWindow = false;
169 
170     bool updateRequestPending = false;
171     bool transientParentPropertySet = false;
172 
173     QPointer<QWindow> transientParent;
174     QPointer<QScreen> topLevelScreen;
175 
176 #ifndef QT_NO_CURSOR
177     QCursor cursor = {Qt::ArrowCursor};
178     bool hasCursor = false;
179 #endif
180 
181     bool compositing = false;
182     QElapsedTimer lastComposeTime;
183 
184 #if QT_CONFIG(vulkan)
185     QVulkanInstance *vulkanInstance = nullptr;
186 #endif
187 };
188 
189 
190 QT_END_NAMESPACE
191 
192 #endif // QWINDOW_P_H
193