1 | /* $Id: UIMouseHandler.h 98520 2023-02-09 14:15:09Z vboxsync $ */
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2 | /** @file
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3 | * VBox Qt GUI - UIMouseHandler class declaration.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2010-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | #ifndef FEQT_INCLUDED_SRC_runtime_UIMouseHandler_h
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29 | #define FEQT_INCLUDED_SRC_runtime_UIMouseHandler_h
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30 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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31 | # pragma once
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32 | #endif
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33 |
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34 | /* Qt includes: */
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35 | #include <QMap>
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36 | #include <QObject>
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37 | #include <QPoint>
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38 | #include <QPointer>
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39 | #include <QRect>
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40 |
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41 | /* GUI includes: */
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42 | #include "UIExtraDataDefs.h"
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43 |
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44 | /* Forward declarations: */
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45 | class QTouchEvent;
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46 | class QWidget;
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47 | class UIMachine;
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48 | class UIMachineLogic;
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49 | class UIMachineView;
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50 | class UIMachineWindow;
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51 |
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52 |
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53 | /* Delegate to control VM mouse functionality: */
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54 | class UIMouseHandler : public QObject
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55 | {
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56 | Q_OBJECT;
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57 |
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58 | signals:
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59 |
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60 | /** Notifies listeners about state-change. */
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61 | void sigStateChange(int iState);
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62 |
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63 | public:
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64 |
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65 | /* Factory functions to create/destroy mouse-handler: */
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66 | static UIMouseHandler* create(UIMachineLogic *pMachineLogic, UIVisualStateType visualStateType);
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67 | static void destroy(UIMouseHandler *pMouseHandler);
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68 |
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69 | /* Prepare/cleanup listener for particular machine-window: */
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70 | void prepareListener(ulong uIndex, UIMachineWindow *pMachineWindow);
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71 | void cleanupListener(ulong uIndex);
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72 |
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73 | /* Commands to capture/release mouse: */
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74 | void captureMouse(ulong uScreenId);
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75 | void releaseMouse();
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76 |
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77 | /* Setter for mouse-integration feature: */
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78 | void setMouseIntegrationEnabled(bool fEnabled);
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79 |
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80 | /* Current mouse state: */
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81 | int state() const;
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82 |
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83 | /** Qt5: Performs pre-processing of all the native events. */
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84 | bool nativeEventFilter(void *pMessage, ulong uScreenId);
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85 |
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86 | protected slots:
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87 |
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88 | /* Machine state-change handler: */
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89 | virtual void sltMachineStateChanged();
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90 |
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91 | /* Mouse capability-change handler: */
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92 | virtual void sltMouseCapabilityChanged();
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93 |
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94 | /* Mouse pointer-shape-change handler: */
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95 | virtual void sltMousePointerShapeChanged();
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96 |
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97 | /** Activate hovered window if any. */
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98 | void sltMaybeActivateHoveredWindow();
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99 |
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100 | protected:
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101 |
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102 | /* Mouse-handler constructor/destructor: */
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103 | UIMouseHandler(UIMachineLogic *pMachineLogic);
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104 | virtual ~UIMouseHandler();
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105 |
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106 | /* Getters: */
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107 | UIMachineLogic *machineLogic() const { return m_pMachineLogic; }
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108 | UIMachine *uimachine() const;
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109 |
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110 | /* Event handler for registered machine-view(s): */
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111 | bool eventFilter(QObject *pWatched, QEvent *pEvent);
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112 |
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113 | /* Separate function to handle most of existing mouse-events: */
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114 | bool mouseEvent(int iEventType, ulong uScreenId,
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115 | const QPoint &relativePos, const QPoint &globalPos,
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116 | Qt::MouseButtons mouseButtons,
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117 | int wheelDelta, Qt::Orientation wheelDirection);
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118 |
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119 | /* Separate function to handle incoming multi-touch events: */
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120 | bool multiTouchEvent(QTouchEvent *pTouchEvent, ulong uScreenId);
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121 |
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122 | #ifdef VBOX_WS_WIN
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123 | /* This method is actually required only because under win-host
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124 | * we do not really grab the mouse in case of capturing it: */
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125 | void updateMouseCursorClipping();
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126 | QRect m_mouseCursorClippingRect;
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127 | #endif /* VBOX_WS_WIN */
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128 |
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129 | /* Machine logic parent: */
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130 | UIMachineLogic *m_pMachineLogic;
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131 |
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132 | /* Registered machine-windows(s): */
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133 | QMap<ulong, QWidget*> m_windows;
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134 | /* Registered machine-view(s): */
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135 | QMap<ulong, UIMachineView*> m_views;
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136 | /* Registered machine-view-viewport(s): */
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137 | QMap<ulong, QWidget*> m_viewports;
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138 |
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139 | /** Hovered window to be activated. */
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140 | QPointer<QWidget> m_pHoveredWindow;
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141 |
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142 | /* Other mouse variables: */
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143 | QPoint m_lastMousePos;
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144 | QPoint m_capturedMousePos;
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145 | QRect m_capturedScreenGeo;
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146 | int m_iLastMouseWheelDelta;
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147 | int m_iMouseCaptureViewIndex;
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148 |
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149 | #ifdef VBOX_WS_WIN
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150 | /** Holds whether cursor position was just
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151 | * reseted to simulate infinite mouse moving. */
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152 | bool m_fCursorPositionReseted;
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153 | #endif
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154 | };
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155 |
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156 | #endif /* !FEQT_INCLUDED_SRC_runtime_UIMouseHandler_h */
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157 |
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