Remove CameraImageProvider and NetworkCamera

This commit is contained in:
fieldOfView 2018-10-25 22:00:47 +02:00
parent c187b6a25c
commit 484b1e5ec6
3 changed files with 0 additions and 154 deletions

View file

@ -1,40 +0,0 @@
# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from PyQt5.QtGui import QImage
from PyQt5.QtQuick import QQuickImageProvider
from PyQt5.QtCore import QSize
from UM.Application import Application
## Creates screenshots of the current scene.
class CameraImageProvider(QQuickImageProvider):
def __init__(self):
super().__init__(QQuickImageProvider.Image)
## Request a new image.
#
# The image will be taken using the current camera position.
# Only the actual objects in the scene will get rendered. Not the build
# plate and such!
# \param id The ID for the image to create. This is the requested image
# source, with the "image:" scheme and provider identifier removed. It's
# a Qt thing, they'll provide this parameter.
# \param size The dimensions of the image to scale to.
def requestImage(self, id, size):
for output_device in Application.getInstance().getOutputDeviceManager().getOutputDevices():
try:
image = output_device.activePrinter.camera.getImage()
if image.isNull():
image = QImage()
return image, QSize(15, 15)
except AttributeError:
try:
image = output_device.activeCamera.getImage()
return image, QSize(15, 15)
except AttributeError:
pass
return QImage(), QSize(15, 15)

View file

@ -96,7 +96,6 @@ from . import PrintInformation
from . import CuraActions from . import CuraActions
from cura.Scene import ZOffsetDecorator from cura.Scene import ZOffsetDecorator
from . import CuraSplashScreen from . import CuraSplashScreen
from . import CameraImageProvider
from . import PrintJobPreviewImageProvider from . import PrintJobPreviewImageProvider
from . import MachineActionManager from . import MachineActionManager
@ -525,7 +524,6 @@ class CuraApplication(QtApplication):
CuraApplication.Created = True CuraApplication.Created = True
def _onEngineCreated(self): def _onEngineCreated(self):
self._qml_engine.addImageProvider("camera", CameraImageProvider.CameraImageProvider())
self._qml_engine.addImageProvider("print_job_preview", PrintJobPreviewImageProvider.PrintJobPreviewImageProvider()) self._qml_engine.addImageProvider("print_job_preview", PrintJobPreviewImageProvider.PrintJobPreviewImageProvider())
@pyqtProperty(bool) @pyqtProperty(bool)

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@ -1,112 +0,0 @@
from UM.Logger import Logger
from PyQt5.QtCore import QUrl, pyqtProperty, pyqtSignal, QObject, pyqtSlot
from PyQt5.QtGui import QImage
from PyQt5.QtNetwork import QNetworkRequest, QNetworkReply, QNetworkAccessManager
class NetworkCamera(QObject):
newImage = pyqtSignal()
def __init__(self, target = None, parent = None):
super().__init__(parent)
self._stream_buffer = b""
self._stream_buffer_start_index = -1
self._manager = None
self._image_request = None
self._image_reply = None
self._image = QImage()
self._target = target
self._started = False
@pyqtSlot(str)
def setTarget(self, target):
restart_required = False
if self._started:
self.stop()
restart_required = True
self._target = target
if restart_required:
self.start()
@pyqtProperty(QImage, notify=newImage)
def latestImage(self):
return self._image
@pyqtSlot()
def start(self):
# Ensure that previous requests (if any) are stopped.
self.stop()
if self._target is None:
Logger.log("w", "Unable to start camera stream without target!")
return
self._started = True
url = QUrl(self._target)
self._image_request = QNetworkRequest(url)
if self._manager is None:
self._manager = QNetworkAccessManager()
self._image_reply = self._manager.get(self._image_request)
self._image_reply.downloadProgress.connect(self._onStreamDownloadProgress)
@pyqtSlot()
def stop(self):
self._stream_buffer = b""
self._stream_buffer_start_index = -1
if self._image_reply:
try:
# disconnect the signal
try:
self._image_reply.downloadProgress.disconnect(self._onStreamDownloadProgress)
except Exception:
pass
# abort the request if it's not finished
if not self._image_reply.isFinished():
self._image_reply.close()
except Exception as e: # RuntimeError
pass # It can happen that the wrapped c++ object is already deleted.
self._image_reply = None
self._image_request = None
self._manager = None
self._started = False
def getImage(self):
return self._image
## Ensure that close gets called when object is destroyed
def __del__(self):
self.stop()
def _onStreamDownloadProgress(self, bytes_received, bytes_total):
# An MJPG stream is (for our purpose) a stream of concatenated JPG images.
# JPG images start with the marker 0xFFD8, and end with 0xFFD9
if self._image_reply is None:
return
self._stream_buffer += self._image_reply.readAll()
if len(self._stream_buffer) > 2000000: # No single camera frame should be 2 Mb or larger
Logger.log("w", "MJPEG buffer exceeds reasonable size. Restarting stream...")
self.stop() # resets stream buffer and start index
self.start()
return
if self._stream_buffer_start_index == -1:
self._stream_buffer_start_index = self._stream_buffer.indexOf(b'\xff\xd8')
stream_buffer_end_index = self._stream_buffer.lastIndexOf(b'\xff\xd9')
# If this happens to be more than a single frame, then so be it; the JPG decoder will
# ignore the extra data. We do it like this in order not to get a buildup of frames
if self._stream_buffer_start_index != -1 and stream_buffer_end_index != -1:
jpg_data = self._stream_buffer[self._stream_buffer_start_index:stream_buffer_end_index + 2]
self._stream_buffer = self._stream_buffer[stream_buffer_end_index + 2:]
self._stream_buffer_start_index = -1
self._image.loadFromData(jpg_data)
self.newImage.emit()