mirror of https://code.videolan.org/videolan/vlc
304 lines
8.3 KiB
C++
304 lines
8.3 KiB
C++
/*****************************************************************************
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* Copyright (C) 2020 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#include "compositor_win7.hpp"
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#include <QApplication>
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#include <QLibrary>
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#include "mainctx_win32.hpp"
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#include "mainui.hpp"
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#include <vlc_window.h>
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#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
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#define D3D11_NO_HELPERS // avoid tons of warnings
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#include <d3d11.h>
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#endif
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#include <dwmapi.h>
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using namespace vlc;
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int CompositorWin7::windowEnable(const vlc_window_cfg_t *)
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{
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commonWindowEnable();
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return VLC_SUCCESS;
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}
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void CompositorWin7::windowDisable()
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{
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commonWindowDisable();
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}
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CompositorWin7::CompositorWin7(qt_intf_t *p_intf, QObject* parent)
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: CompositorVideo(p_intf, parent)
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{
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}
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CompositorWin7::~CompositorWin7()
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{
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}
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bool CompositorWin7::preInit(qt_intf_t *p_intf)
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{
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#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
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//check whether D3DCompiler is available. whitout it Angle won't work
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QLibrary d3dCompilerDll;
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for (int i = 47; i > 41; --i)
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{
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d3dCompilerDll.setFileName(QString("D3DCOMPILER_%1.dll").arg(i));
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if (d3dCompilerDll.load())
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break;
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}
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D3D_FEATURE_LEVEL requestedFeatureLevels[] = {
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D3D_FEATURE_LEVEL_9_1,
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D3D_FEATURE_LEVEL_9_2,
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D3D_FEATURE_LEVEL_9_3,
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D3D_FEATURE_LEVEL_10_0,
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D3D_FEATURE_LEVEL_10_1,
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D3D_FEATURE_LEVEL_11_1,
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D3D_FEATURE_LEVEL_11_0,
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};
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HRESULT hr = D3D11CreateDevice(
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nullptr, // Adapter
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D3D_DRIVER_TYPE_HARDWARE,
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nullptr, // Module
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D3D11_CREATE_DEVICE_BGRA_SUPPORT,
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requestedFeatureLevels,
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ARRAY_SIZE(requestedFeatureLevels),
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D3D11_SDK_VERSION,
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nullptr, //D3D device
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nullptr, // Actual feature level
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nullptr //D3D context
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);
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//no hw acceleration, manually select the software backend
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//otherwise Qt will load angle and fail.
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if (!d3dCompilerDll.isLoaded() || FAILED(hr))
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{
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msg_Info(p_intf, "no D3D support, use software backend");
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QQuickWindow::setSceneGraphBackend(QSGRendererInterface::Software);
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}
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#endif
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return true;
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}
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bool CompositorWin7::init()
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{
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{
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const QString& platformName = qApp->platformName();
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if (!(platformName == QLatin1String("windows") || platformName == QLatin1String("direct2d")))
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return false;
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}
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return true;
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}
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bool CompositorWin7::makeMainInterface(MainCtx* mainCtx)
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{
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m_mainCtx = mainCtx;
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/*
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* m_stable is not attached to the main interface because dialogs are attached to the mainCtx
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* and showing them would raise the video widget above the interface
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*/
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m_videoWidget = new QWidget(nullptr, Qt::Tool | Qt::FramelessWindowHint);
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m_stable = new QWidget(m_videoWidget);
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m_stable->setContextMenuPolicy( Qt::PreventContextMenu );
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QPalette plt = m_stable->palette();
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plt.setColor( QPalette::Window, Qt::black );
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m_stable->setPalette( plt );
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m_stable->setAutoFillBackground(true);
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/* Force the widget to be native so that it gets a winId() */
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m_stable->setAttribute( Qt::WA_NativeWindow, true );
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m_stable->setAttribute( Qt::WA_PaintOnScreen, true );
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m_stable->setMouseTracking( true );
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m_stable->setAttribute( Qt::WA_ShowWithoutActivating );
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m_stable->setVisible(true);
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m_videoWidget->show();
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m_videoWindowHWND = (HWND)m_videoWidget->winId();
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BOOL excluseFromPeek = TRUE;
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DwmSetWindowAttribute(m_videoWindowHWND, DWMWA_EXCLUDED_FROM_PEEK, &excluseFromPeek, sizeof(excluseFromPeek));
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DwmSetWindowAttribute(m_videoWindowHWND, DWMWA_DISALLOW_PEEK, &excluseFromPeek, sizeof(excluseFromPeek));
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m_qmlView = std::make_unique<QQuickView>();
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m_qmlView->setResizeMode(QQuickView::SizeRootObjectToView);
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m_qmlView->setClearBeforeRendering(true);
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m_qmlView->setColor(QColor(Qt::transparent));
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m_qmlView->installEventFilter(this);
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m_nativeEventFilter = std::make_unique<Win7NativeEventFilter>();
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qApp->installNativeEventFilter(m_nativeEventFilter.get());
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connect(m_nativeEventFilter.get(), &Win7NativeEventFilter::windowStyleChanged,
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this, &CompositorWin7::resetVideoZOrder);
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m_qmlView->show();
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m_qmlWindowHWND = (HWND)m_qmlView->winId();
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commonGUICreate(m_qmlView.get(), m_qmlView.get(), CompositorVideo::CAN_SHOW_PIP);
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return true;
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}
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void CompositorWin7::destroyMainInterface()
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{
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commonIntfDestroy();
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if (m_videoWidget)
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{
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delete m_videoWidget;
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m_videoWidget = nullptr;
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}
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}
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void CompositorWin7::unloadGUI()
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{
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m_qmlView.reset();
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commonGUIDestroy();
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}
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bool CompositorWin7::setupVoutWindow(vlc_window_t *p_wnd, VoutDestroyCb destroyCb)
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{
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BOOL isCompositionEnabled;
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HRESULT hr = DwmIsCompositionEnabled(&isCompositionEnabled);
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//composition is disabled, video can't be seen through the interface,
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//so we fallback to a separate window.
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if (FAILED(hr) || !isCompositionEnabled)
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return false;
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commonSetupVoutWindow(p_wnd, destroyCb);
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p_wnd->type = VLC_WINDOW_TYPE_HWND;
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p_wnd->handle.hwnd = (HWND)m_stable->winId();
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p_wnd->display.x11 = nullptr;
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return true;
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}
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QWindow *CompositorWin7::interfaceMainWindow() const
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{
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return m_qmlView.get();
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}
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Compositor::Type CompositorWin7::type() const
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{
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return Compositor::Win7Compositor;
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}
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QQuickItem * CompositorWin7::activeFocusItem() const /* override */
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{
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return m_qmlView->activeFocusItem();
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}
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bool CompositorWin7::eventFilter(QObject*, QEvent* ev)
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{
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if (!m_videoWidget || !m_qmlView)
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return false;
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switch (ev->type())
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{
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case QEvent::Move:
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case QEvent::Resize:
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case QEvent::ApplicationStateChange:
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m_videoWidget->setGeometry(m_qmlView->geometry());
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resetVideoZOrder();
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break;
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case QEvent::WindowStateChange:
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if (m_qmlView->windowStates() & Qt::WindowMinimized)
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m_videoWidget->hide();
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else
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{
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m_videoWidget->show();
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m_videoWidget->setGeometry(m_qmlView->geometry());
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resetVideoZOrder();
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}
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break;
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case QEvent::FocusIn:
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resetVideoZOrder();
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break;
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case QEvent::Show:
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m_videoWidget->show();
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resetVideoZOrder();
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break;
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case QEvent::Hide:
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m_videoWidget->hide();
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break;
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default:
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break;
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}
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return false;
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}
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void CompositorWin7::resetVideoZOrder()
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{
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//Place the video wdiget right behind the interface
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HWND bottomHWND = m_qmlWindowHWND;
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HWND currentHWND = bottomHWND;
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while (currentHWND != nullptr)
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{
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bottomHWND = currentHWND;
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currentHWND = GetWindow(bottomHWND, GW_OWNER);
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}
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SetWindowPos(
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m_videoWindowHWND,
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bottomHWND,
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0,0,0,0,
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SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE
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);
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}
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void CompositorWin7::onSurfacePositionChanged(const QPointF& position)
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{
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m_stable->move((position / m_stable->window()->devicePixelRatioF()).toPoint());
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}
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void CompositorWin7::onSurfaceSizeChanged(const QSizeF& size)
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{
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m_stable->resize((size / m_stable->window()->devicePixelRatioF()).toSize());
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}
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Win7NativeEventFilter::Win7NativeEventFilter(QObject* parent)
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: QObject(parent)
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{
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}
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//parse native events that are not reported by Qt
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bool Win7NativeEventFilter::nativeEventFilter(const QByteArray&, void* message, long*)
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{
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MSG * msg = static_cast<MSG*>( message );
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switch( msg->message )
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{
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//style like "always on top" changed
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case WM_STYLECHANGED:
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emit windowStyleChanged();
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break;
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}
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return false;
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}
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