1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QWINDOW_P_H
5#define QWINDOW_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QtGui/private/qtguiglobal_p.h>
19#include <QtGui/qscreen.h>
20#include <QtGui/qwindow.h>
21#include <qpa/qplatformwindow.h>
22
23#include <QtCore/private/qobject_p.h>
24#include <QtCore/qelapsedtimer.h>
25#include <QtCore/qxpfunctional.h>
26#include <QtGui/qicon.h>
27#include <QtGui/qpalette.h>
28
29#include <QtCore/qpointer.h>
30
31QT_BEGIN_NAMESPACE
32
33class Q_GUI_EXPORT QWindowPrivate : public QObjectPrivate
34{
35 Q_DECLARE_PUBLIC(QWindow)
36
37public:
38 enum PositionPolicy
39 {
40 WindowFrameInclusive,
41 WindowFrameExclusive
42 };
43
44 QWindowPrivate();
45 ~QWindowPrivate() override;
46
47 void init(QWindow *parent, QScreen *targetScreen = nullptr);
48
49#ifndef QT_NO_CURSOR
50 void setCursor(const QCursor *c = nullptr);
51 bool applyCursor();
52#endif
53
54 QPoint globalPosition() const;
55
56 QWindow *topLevelWindow(QWindow::AncestorMode mode = QWindow::IncludeTransients) const;
57
58 virtual QWindow *eventReceiver() { Q_Q(QWindow); return q; }
59 virtual QPalette windowPalette() const { return QPalette(); }
60
61 virtual void setVisible(bool visible);
62 void updateVisibility();
63 void _q_clearAlert();
64
65 enum SiblingPosition { PositionTop, PositionBottom };
66 void updateSiblingPosition(SiblingPosition);
67
68 bool windowRecreationRequired(QScreen *newScreen) const;
69 void create(bool recursive);
70 void destroy();
71 void setTopLevelScreen(QScreen *newScreen, bool recreate);
72 void connectToScreen(QScreen *topLevelScreen);
73 void disconnectFromScreen();
74 void emitScreenChangedRecursion(QScreen *newScreen);
75 QScreen *screenForGeometry(const QRect &rect) const;
76 void setTransientParent(QWindow *parent);
77
78 virtual void clearFocusObject();
79
80 enum class FocusTarget {
81 First,
82 Last,
83 Current,
84 Next,
85 Prev
86 };
87 virtual void setFocusToTarget(FocusTarget, Qt::FocusReason) {}
88
89 virtual QRectF closestAcceptableGeometry(const QRectF &rect) const;
90
91 void setMinOrMaxSize(QSize *oldSizeMember, const QSize &size,
92 qxp::function_ref<void()> funcWidthChanged,
93 qxp::function_ref<void()> funcHeightChanged);
94
95 virtual void processSafeAreaMarginsChanged() {}
96
97 virtual bool participatesInLastWindowClosed() const;
98 virtual bool treatAsVisible() const;
99
100 const QWindow *forwardToPopup(QEvent *event, const QWindow *activePopupOnPress);
101
102 bool isPopup() const { return (windowFlags & Qt::WindowType_Mask) == Qt::Popup; }
103 void setAutomaticPositionAndResizeEnabled(bool a)
104 { positionAutomatic = resizeAutomatic = a; }
105
106 bool updateDevicePixelRatio();
107
108 static QWindowPrivate *get(QWindow *window) { return window->d_func(); }
109
110 static Qt::WindowState effectiveState(Qt::WindowStates);
111
112 QWindow::SurfaceType surfaceType = QWindow::RasterSurface;
113 Qt::WindowFlags windowFlags = Qt::Window;
114 QWindow *parentWindow = nullptr;
115 QPlatformWindow *platformWindow = nullptr;
116 bool visible= false;
117 bool visibilityOnDestroy = false;
118 bool exposed = false;
119 bool inClose = false;
120 QSurfaceFormat requestedFormat;
121 QString windowTitle;
122 QString windowFilePath;
123 QIcon windowIcon;
124 QRect geometry;
125 qreal devicePixelRatio = 1.0;
126 Qt::WindowStates windowState = Qt::WindowNoState;
127 QWindow::Visibility visibility = QWindow::Hidden;
128 bool resizeEventPending = true;
129 bool receivedExpose = false;
130 PositionPolicy positionPolicy = WindowFrameExclusive;
131 bool positionAutomatic = true;
132 // resizeAutomatic suppresses resizing by QPlatformWindow::initialGeometry().
133 // It also indicates that width/height=0 is acceptable (for example, for
134 // the QRollEffect widget) and is thus not cleared in setGeometry().
135 // An alternative approach might be using -1,-1 as a default size.
136 bool resizeAutomatic = true;
137 Qt::ScreenOrientation contentOrientation = Qt::PrimaryOrientation;
138 qreal opacity= 1;
139 QRegion mask;
140
141 QSize minimumSize = {0, 0};
142 QSize maximumSize = {QWINDOWSIZE_MAX, QWINDOWSIZE_MAX};
143 QSize baseSize;
144 QSize sizeIncrement;
145
146 Qt::WindowModality modality = Qt::NonModal;
147 bool blockedByModalWindow = false;
148
149 bool updateRequestPending = false;
150 bool transientParentPropertySet = false;
151
152 QPointer<QWindow> transientParent;
153 QPointer<QScreen> topLevelScreen;
154
155#ifndef QT_NO_CURSOR
156 QCursor cursor = {Qt::ArrowCursor};
157 bool hasCursor = false;
158#endif
159
160 QElapsedTimer lastComposeTime;
161
162#if QT_CONFIG(vulkan)
163 QVulkanInstance *vulkanInstance = nullptr;
164#endif
165};
166
167
168QT_END_NAMESPACE
169
170#endif // QWINDOW_P_H
171

source code of qtbase/src/gui/kernel/qwindow_p.h