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Diffstat (limited to 'examples/multimedia/camera.py')
| -rw-r--r-- | examples/multimedia/camera.py | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/examples/multimedia/camera.py b/examples/multimedia/camera.py new file mode 100644 index 000000000..1b8d5ad47 --- /dev/null +++ b/examples/multimedia/camera.py @@ -0,0 +1,170 @@ +#!/usr/bin/env python + +############################################################################# +## +## Copyright (C) 2017 The Qt Company Ltd. +## Contact: http://www.qt.io/licensing/ +## +## This file is part of the PySide examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: +## +## "Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## * Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## * Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. +## * Neither the name of The Qt Company Ltd nor the names of its +## contributors may be used to endorse or promote products derived +## from this software without specific prior written permission. +## +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +## +## $QT_END_LICENSE$ +## +############################################################################# + +"""PySide2 Multimedia Camera Example""" + +import os, sys +from PySide2.QtCore import QDate, QDir, QStandardPaths, Qt, QUrl +from PySide2.QtGui import QClipboard, QGuiApplication, QDesktopServices, QIcon +from PySide2.QtGui import QImage, QPixmap +from PySide2.QtWidgets import (QAction, qApp, QApplication, QHBoxLayout, QLabel, + QMainWindow, QPushButton, QTabWidget, QToolBar, QVBoxLayout, QWidget) +from PySide2.QtMultimedia import QCamera, QCameraImageCapture, QCameraInfo +from PySide2.QtMultimediaWidgets import QCameraViewfinder + +class ImageView(QWidget): + def __init__(self, previewImage, fileName): + super(ImageView, self).__init__() + + self.fileName = fileName + + mainLayout = QVBoxLayout(self) + self.imageLabel = QLabel() + self.imageLabel.setPixmap(QPixmap.fromImage(previewImage)) + mainLayout.addWidget(self.imageLabel) + + topLayout = QHBoxLayout() + self.fileNameLabel = QLabel(QDir.toNativeSeparators(fileName)) + self.fileNameLabel.setTextInteractionFlags(Qt.TextBrowserInteraction) + + topLayout.addWidget(self.fileNameLabel) + topLayout.addStretch() + copyButton = QPushButton("Copy") + copyButton.setToolTip("Copy file name to clipboard") + topLayout.addWidget(copyButton) + copyButton.clicked.connect(self.copy) + launchButton = QPushButton("Launch") + launchButton.setToolTip("Launch image viewer") + topLayout.addWidget(launchButton) + launchButton.clicked.connect(self.launch) + mainLayout.addLayout(topLayout) + + def copy(self): + QGuiApplication.clipboard().setText(self.fileNameLabel.text()) + + def launch(self): + QDesktopServices.openUrl(QUrl.fromLocalFile(self.fileName)) + +class MainWindow(QMainWindow): + def __init__(self): + super(MainWindow, self).__init__() + + self.cameraInfo = QCameraInfo.defaultCamera() + self.camera = QCamera(self.cameraInfo) + self.camera.setCaptureMode(QCamera.CaptureStillImage) + self.imageCapture = QCameraImageCapture(self.camera) + self.imageCapture.imageCaptured.connect(self.imageCaptured) + self.imageCapture.imageSaved.connect(self.imageSaved) + self.currentPreview = QImage() + + toolBar = QToolBar() + self.addToolBar(toolBar) + + fileMenu = self.menuBar().addMenu("&File") + shutterIcon = QIcon(os.path.join(os.path.dirname(__file__), + "shutter.svg")) + self.takePictureAction = QAction(shutterIcon, "&Take Picture", self, + shortcut="Ctrl+T", + triggered=self.takePicture) + self.takePictureAction.setToolTip("Take Picture") + fileMenu.addAction(self.takePictureAction) + toolBar.addAction(self.takePictureAction) + + exitAction = QAction(QIcon.fromTheme("application-exit"), "E&xit", + self, shortcut="Ctrl+Q", triggered=self.close) + fileMenu.addAction(exitAction) + + aboutMenu = self.menuBar().addMenu("&About") + aboutQtAction = QAction("About &Qt", self, triggered=qApp.aboutQt) + aboutMenu.addAction(aboutQtAction) + + self.tabWidget = QTabWidget() + self.setCentralWidget(self.tabWidget) + + self.cameraViewfinder = QCameraViewfinder() + self.camera.setViewfinder(self.cameraViewfinder) + self.tabWidget.addTab(self.cameraViewfinder, "Viewfinder") + + if self.camera.status() != QCamera.UnavailableStatus: + name = self.cameraInfo.description() + self.setWindowTitle("PySide2 Camera Example (" + name + ")") + self.statusBar().showMessage("Starting: '" + name + "'", 5000) + self.camera.start() + else: + self.setWindowTitle("PySide2 Camera Example") + self.takePictureAction.setEnabled(False) + self.statusBar().showMessage("Camera unavailable", 5000) + + def nextImageFileName(self): + picturesLocation = QStandardPaths.writableLocation(QStandardPaths.PicturesLocation) + dateString = QDate.currentDate().toString("yyyyMMdd") + pattern = picturesLocation + "/pyside2_camera_" + dateString + "_{:03d}.jpg" + n = 1 + while True: + result = pattern.format(n) + if not os.path.exists(result): + return result + n = n + 1 + return None + + def takePicture(self): + self.currentPreview = QImage() + self.camera.searchAndLock() + self.imageCapture.capture(self.nextImageFileName()) + self.camera.unlock() + + def imageCaptured(self, id, previewImage): + self.currentPreview = previewImage + + def imageSaved(self, id, fileName): + index = self.tabWidget.count() + imageView = ImageView(self.currentPreview, fileName) + self.tabWidget.addTab(imageView, "Capture #{}".format(index)) + self.tabWidget.setCurrentIndex(index) + +if __name__ == '__main__': + app = QApplication(sys.argv) + mainWin = MainWindow() + availableGeometry = app.desktop().availableGeometry(mainWin) + mainWin.resize(availableGeometry.width() / 3, availableGeometry.height() / 2) + mainWin.show() + sys.exit(app.exec_()) |