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git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce

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subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"
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essej
2022-04-18 17:51:22 -04:00
parent 63e175fee6
commit 25bd5d8adb
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deps/juce/examples/GUI/CameraDemo.h vendored Normal file
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/*
==============================================================================
This file is part of the JUCE examples.
Copyright (c) 2020 - Raw Material Software Limited
The code included in this file is provided under the terms of the ISC license
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
To use, copy, modify, and/or distribute this software for any purpose with or
without fee is hereby granted provided that the above copyright notice and
this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
/*******************************************************************************
The block below describes the properties of this PIP. A PIP is a short snippet
of code that can be read by the Projucer and used to generate a JUCE project.
BEGIN_JUCE_PIP_METADATA
name: CameraDemo
version: 1.0.0
vendor: JUCE
website: http://juce.com
description: Showcases camera features.
dependencies: juce_audio_basics, juce_audio_devices, juce_core, juce_cryptography,
juce_data_structures, juce_events, juce_graphics, juce_gui_basics,
juce_gui_extra, juce_video
exporters: xcode_mac, vs2019, androidstudio, xcode_iphone
moduleFlags: JUCE_USE_CAMERA=1, JUCE_STRICT_REFCOUNTEDPOINTER=1
type: Component
mainClass: CameraDemo
useLocalCopy: 1
END_JUCE_PIP_METADATA
*******************************************************************************/
#pragma once
#include "../Assets/DemoUtilities.h"
//==============================================================================
class CameraDemo : public Component
{
public:
CameraDemo()
{
setOpaque (true);
#if JUCE_ANDROID
// Android requires exclusive access to the audio device when recording videos.
audioDeviceManager.closeAudioDevice();
#endif
addAndMakeVisible (cameraSelectorComboBox);
updateCameraList();
cameraSelectorComboBox.setSelectedId (1);
cameraSelectorComboBox.onChange = [this] { cameraChanged(); };
addAndMakeVisible (snapshotButton);
snapshotButton.onClick = [this] { takeSnapshot(); };
snapshotButton.setEnabled (false);
addAndMakeVisible (recordMovieButton);
recordMovieButton.onClick = [this] { startRecording(); };
recordMovieButton.setEnabled (false);
addAndMakeVisible (lastSnapshot);
cameraSelectorComboBox.setSelectedId (2);
setSize (500, 500);
#if JUCE_IOS || JUCE_ANDROID
setPortraitOrientationEnabled (true);
#endif
}
~CameraDemo() override
{
#if JUCE_IOS || JUCE_ANDROID
setPortraitOrientationEnabled (false);
#endif
#if JUCE_ANDROID
audioDeviceManager.restartLastAudioDevice();
#endif
}
//==============================================================================
void paint (Graphics& g) override
{
g.fillAll (Colours::black);
}
void resized() override
{
auto r = getLocalBounds().reduced (5);
auto top = r.removeFromTop (25);
cameraSelectorComboBox.setBounds (top.removeFromLeft (250));
r.removeFromTop (4);
top = r.removeFromTop (25);
snapshotButton.changeWidthToFitText (24);
snapshotButton.setBounds (top.removeFromLeft (snapshotButton.getWidth()));
top.removeFromLeft (4);
recordMovieButton.changeWidthToFitText (24);
recordMovieButton.setBounds (top.removeFromLeft (recordMovieButton.getWidth()));
r.removeFromTop (4);
auto previewArea = shouldUseLandscapeLayout() ? r.removeFromLeft (r.getWidth() / 2)
: r.removeFromTop (r.getHeight() / 2);
if (cameraPreviewComp.get() != nullptr)
cameraPreviewComp->setBounds (previewArea);
if (shouldUseLandscapeLayout())
r.removeFromLeft (4);
else
r.removeFromTop (4);
lastSnapshot.setBounds (r);
}
private:
//==============================================================================
// if this PIP is running inside the demo runner, we'll use the shared device manager instead
#ifndef JUCE_DEMO_RUNNER
AudioDeviceManager audioDeviceManager;
#else
AudioDeviceManager& audioDeviceManager { getSharedAudioDeviceManager (0, 2) };
#endif
std::unique_ptr<CameraDevice> cameraDevice;
std::unique_ptr<Component> cameraPreviewComp;
ImageComponent lastSnapshot;
ComboBox cameraSelectorComboBox { "Camera" };
TextButton snapshotButton { "Take a snapshot" };
#if ! JUCE_ANDROID && ! JUCE_IOS
TextButton recordMovieButton { "Record a movie (to your desktop)..." };
#else
TextButton recordMovieButton { "Record a movie" };
#endif
bool recordingMovie = false;
File recordingFile;
bool contentSharingPending = false;
void setPortraitOrientationEnabled (bool shouldBeEnabled)
{
auto allowedOrientations = Desktop::getInstance().getOrientationsEnabled();
if (shouldBeEnabled)
allowedOrientations |= Desktop::upright;
else
allowedOrientations &= ~Desktop::upright;
Desktop::getInstance().setOrientationsEnabled (allowedOrientations);
}
bool shouldUseLandscapeLayout() const noexcept
{
#if JUCE_ANDROID || JUCE_IOS
auto orientation = Desktop::getInstance().getCurrentOrientation();
return orientation == Desktop::rotatedClockwise || orientation == Desktop::rotatedAntiClockwise;
#else
return false;
#endif
}
void updateCameraList()
{
cameraSelectorComboBox.clear();
cameraSelectorComboBox.addItem ("No camera", 1);
cameraSelectorComboBox.addSeparator();
auto cameras = CameraDevice::getAvailableDevices();
for (int i = 0; i < cameras.size(); ++i)
cameraSelectorComboBox.addItem (cameras[i], i + 2);
}
void cameraChanged()
{
// This is called when the user chooses a camera from the drop-down list.
#if JUCE_IOS
// On iOS, when switching camera, open the new camera first, so that it can
// share the underlying camera session with the old camera. Otherwise, the
// session would have to be closed first, which can take several seconds.
if (cameraSelectorComboBox.getSelectedId() == 1)
cameraDevice.reset();
#else
cameraDevice.reset();
#endif
cameraPreviewComp.reset();
recordingMovie = false;
if (cameraSelectorComboBox.getSelectedId() > 1)
{
#if JUCE_ANDROID || JUCE_IOS
openCameraAsync();
#else
cameraDeviceOpenResult (CameraDevice::openDevice (cameraSelectorComboBox.getSelectedId() - 2), {});
#endif
}
else
{
snapshotButton .setEnabled (cameraDevice != nullptr && ! contentSharingPending);
recordMovieButton.setEnabled (cameraDevice != nullptr && ! contentSharingPending);
resized();
}
}
void openCameraAsync()
{
SafePointer<CameraDemo> safeThis (this);
CameraDevice::openDeviceAsync (cameraSelectorComboBox.getSelectedId() - 2,
[safeThis] (CameraDevice* device, const String& error) mutable
{
if (safeThis)
safeThis->cameraDeviceOpenResult (device, error);
});
}
void cameraDeviceOpenResult (CameraDevice* device, const String& error)
{
// If camera opening worked, create a preview component for it..
cameraDevice.reset (device);
if (cameraDevice.get() != nullptr)
{
#if JUCE_ANDROID
SafePointer<CameraDemo> safeThis (this);
cameraDevice->onErrorOccurred = [safeThis] (const String& cameraError) mutable { if (safeThis) safeThis->errorOccurred (cameraError); };
#endif
cameraPreviewComp.reset (cameraDevice->createViewerComponent());
addAndMakeVisible (cameraPreviewComp.get());
}
else
{
AlertWindow::showMessageBoxAsync (MessageBoxIconType::WarningIcon, "Camera open failed",
"Camera open failed, reason: " + error);
}
snapshotButton .setEnabled (cameraDevice.get() != nullptr && ! contentSharingPending);
recordMovieButton.setEnabled (cameraDevice.get() != nullptr && ! contentSharingPending);
resized();
}
void startRecording()
{
if (cameraDevice.get() != nullptr)
{
// The user has clicked the record movie button..
if (! recordingMovie)
{
// Start recording to a file on the user's desktop..
recordingMovie = true;
#if JUCE_ANDROID || JUCE_IOS
recordingFile = File::getSpecialLocation (File::tempDirectory)
#else
recordingFile = File::getSpecialLocation (File::userDesktopDirectory)
#endif
.getNonexistentChildFile ("JuceCameraVideoDemo", CameraDevice::getFileExtension());
#if JUCE_ANDROID
// Android does not support taking pictures while recording video.
snapshotButton.setEnabled (false);
#endif
cameraSelectorComboBox.setEnabled (false);
cameraDevice->startRecordingToFile (recordingFile);
recordMovieButton.setButtonText ("Stop Recording");
}
else
{
// Already recording, so stop...
recordingMovie = false;
cameraDevice->stopRecording();
#if ! JUCE_ANDROID && ! JUCE_IOS
recordMovieButton.setButtonText ("Start recording (to a file on your desktop)");
#else
recordMovieButton.setButtonText ("Record a movie");
#endif
cameraSelectorComboBox.setEnabled (true);
#if JUCE_ANDROID
snapshotButton.setEnabled (true);
#endif
#if JUCE_CONTENT_SHARING
URL url (recordingFile);
snapshotButton .setEnabled (false);
recordMovieButton.setEnabled (false);
contentSharingPending = true;
SafePointer<CameraDemo> safeThis (this);
juce::ContentSharer::getInstance()->shareFiles ({url},
[safeThis] (bool success, const String&) mutable
{
if (safeThis)
safeThis->sharingFinished (success, false);
});
#endif
}
}
}
void takeSnapshot()
{
SafePointer<CameraDemo> safeThis (this);
cameraDevice->takeStillPicture ([safeThis] (const Image& image) mutable { safeThis->imageReceived (image); });
}
// This is called by the camera device when a new image arrives
void imageReceived (const Image& image)
{
if (! image.isValid())
return;
lastSnapshot.setImage (image);
#if JUCE_CONTENT_SHARING
auto imageFile = File::getSpecialLocation (File::tempDirectory).getNonexistentChildFile ("JuceCameraPhotoDemo", ".jpg");
FileOutputStream stream (imageFile);
if (stream.openedOk()
&& JPEGImageFormat().writeImageToStream (image, stream))
{
URL url (imageFile);
snapshotButton .setEnabled (false);
recordMovieButton.setEnabled (false);
contentSharingPending = true;
SafePointer<CameraDemo> safeThis (this);
juce::ContentSharer::getInstance()->shareFiles ({url},
[safeThis] (bool success, const String&) mutable
{
if (safeThis)
safeThis->sharingFinished (success, true);
});
}
#endif
}
void errorOccurred (const String& error)
{
AlertWindow::showMessageBoxAsync (MessageBoxIconType::InfoIcon,
"Camera Device Error",
"An error has occurred: " + error + " Camera will be closed.");
cameraDevice.reset();
cameraSelectorComboBox.setSelectedId (1);
snapshotButton .setEnabled (false);
recordMovieButton.setEnabled (false);
}
void sharingFinished (bool success, bool isCapture)
{
AlertWindow::showMessageBoxAsync (MessageBoxIconType::InfoIcon,
isCapture ? "Image sharing result" : "Video sharing result",
success ? "Success!" : "Failed!");
contentSharingPending = false;
snapshotButton .setEnabled (true);
recordMovieButton.setEnabled (true);
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (CameraDemo)
};