| /**************************************************************************** |
| ** |
| ** Copyright (C) 2020 The Qt Company Ltd and/or its subsidiary(-ies). |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "avfcamerawindowcontrol.h" |
| |
| #import <AVFoundation/AVFoundation.h> |
| #import <QuartzCore/CATransaction.h> |
| |
| #if QT_HAS_INCLUDE(<AppKit/AppKit.h>) |
| #import <AppKit/AppKit.h> |
| #endif |
| |
| #if QT_HAS_INCLUDE(<UIKit/UIKit.h>) |
| #import <UIKit/UIKit.h> |
| #endif |
| |
| QT_USE_NAMESPACE |
| |
| AVFCameraWindowControl::AVFCameraWindowControl(QObject *parent) |
| : QVideoWindowControl(parent) |
| { |
| setObjectName(QStringLiteral("AVFCameraWindowControl")); |
| } |
| |
| AVFCameraWindowControl::~AVFCameraWindowControl() |
| { |
| releaseNativeLayer(); |
| } |
| |
| WId AVFCameraWindowControl::winId() const |
| { |
| return m_winId; |
| } |
| |
| void AVFCameraWindowControl::setWinId(WId id) |
| { |
| if (m_winId == id) |
| return; |
| |
| m_winId = id; |
| |
| detachNativeLayer(); |
| m_nativeView = (NativeView*)m_winId; |
| attachNativeLayer(); |
| } |
| |
| QRect AVFCameraWindowControl::displayRect() const |
| { |
| return m_displayRect; |
| } |
| |
| void AVFCameraWindowControl::setDisplayRect(const QRect &rect) |
| { |
| if (m_displayRect != rect) { |
| m_displayRect = rect; |
| updateCaptureLayerBounds(); |
| } |
| } |
| |
| bool AVFCameraWindowControl::isFullScreen() const |
| { |
| return m_fullscreen; |
| } |
| |
| void AVFCameraWindowControl::setFullScreen(bool fullscreen) |
| { |
| if (m_fullscreen != fullscreen) { |
| m_fullscreen = fullscreen; |
| Q_EMIT fullScreenChanged(fullscreen); |
| } |
| } |
| |
| void AVFCameraWindowControl::repaint() |
| { |
| if (m_captureLayer) |
| [m_captureLayer setNeedsDisplay]; |
| } |
| |
| QSize AVFCameraWindowControl::nativeSize() const |
| { |
| return m_nativeSize; |
| } |
| |
| void AVFCameraWindowControl::setNativeSize(QSize size) |
| { |
| if (m_nativeSize != size) { |
| m_nativeSize = size; |
| Q_EMIT nativeSizeChanged(); |
| } |
| } |
| |
| Qt::AspectRatioMode AVFCameraWindowControl::aspectRatioMode() const |
| { |
| return m_aspectRatioMode; |
| } |
| |
| void AVFCameraWindowControl::setAspectRatioMode(Qt::AspectRatioMode mode) |
| { |
| if (m_aspectRatioMode != mode) { |
| m_aspectRatioMode = mode; |
| updateAspectRatio(); |
| } |
| } |
| |
| int AVFCameraWindowControl::brightness() const |
| { |
| return 0; |
| } |
| |
| void AVFCameraWindowControl::setBrightness(int brightness) |
| { |
| if (0 != brightness) |
| qWarning("AVFCameraWindowControl doesn't support changing Brightness"); |
| } |
| |
| int AVFCameraWindowControl::contrast() const |
| { |
| return 0; |
| } |
| |
| void AVFCameraWindowControl::setContrast(int contrast) |
| { |
| if (0 != contrast) |
| qWarning("AVFCameraWindowControl doesn't support changing Contrast"); |
| } |
| |
| int AVFCameraWindowControl::hue() const |
| { |
| return 0; |
| } |
| |
| void AVFCameraWindowControl::setHue(int hue) |
| { |
| if (0 != hue) |
| qWarning("AVFCameraWindowControl doesn't support changing Hue"); |
| } |
| |
| int AVFCameraWindowControl::saturation() const |
| { |
| return 0; |
| } |
| |
| void AVFCameraWindowControl::setSaturation(int saturation) |
| { |
| if (0 != saturation) |
| qWarning("AVFCameraWindowControl doesn't support changing Saturation"); |
| } |
| |
| void AVFCameraWindowControl::setLayer(AVCaptureVideoPreviewLayer *capturePreviewLayer) |
| { |
| if (m_captureLayer == capturePreviewLayer) |
| return; |
| |
| releaseNativeLayer(); |
| |
| m_captureLayer = capturePreviewLayer; |
| |
| if (m_captureLayer) |
| retainNativeLayer(); |
| } |
| |
| void AVFCameraWindowControl::updateAspectRatio() |
| { |
| if (m_captureLayer) { |
| switch (m_aspectRatioMode) { |
| case Qt::IgnoreAspectRatio: |
| [m_captureLayer setVideoGravity:AVLayerVideoGravityResize]; |
| break; |
| case Qt::KeepAspectRatio: |
| [m_captureLayer setVideoGravity:AVLayerVideoGravityResizeAspect]; |
| break; |
| case Qt::KeepAspectRatioByExpanding: |
| [m_captureLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill]; |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| void AVFCameraWindowControl::updateCaptureLayerBounds() |
| { |
| if (m_captureLayer && m_nativeView) { |
| [CATransaction begin]; |
| [CATransaction setDisableActions: YES]; // disable animation/flicks |
| m_captureLayer.frame = m_displayRect.toCGRect(); |
| [CATransaction commit]; |
| } |
| } |
| |
| void AVFCameraWindowControl::retainNativeLayer() |
| { |
| [m_captureLayer retain]; |
| |
| updateAspectRatio(); |
| attachNativeLayer(); |
| } |
| |
| void AVFCameraWindowControl::releaseNativeLayer() |
| { |
| if (m_captureLayer) { |
| detachNativeLayer(); |
| [m_captureLayer release]; |
| m_captureLayer = nullptr; |
| } |
| } |
| |
| void AVFCameraWindowControl::attachNativeLayer() |
| { |
| if (m_captureLayer && m_nativeView) { |
| #if defined(Q_OS_MACOS) |
| m_nativeView.wantsLayer = YES; |
| #endif |
| CALayer *nativeLayer = m_nativeView.layer; |
| [nativeLayer addSublayer:m_captureLayer]; |
| updateCaptureLayerBounds(); |
| } |
| } |
| |
| void AVFCameraWindowControl::detachNativeLayer() |
| { |
| if (m_captureLayer && m_nativeView) |
| [m_captureLayer removeFromSuperlayer]; |
| } |
| |
| #include "moc_avfcamerawindowcontrol.cpp" |