class ChangeDetectorApp(QWidget):
image1 = ""
image2 = ""
result_path = ""
AppSize = (600, 300)
NUMBER_OF_SLICES = 9
def __init__(self):
super().__init__()
self.AppTitle = "Satellite Images Change Detector"
self.initUI()
self.setFixedSize(*self.AppSize)
self.setWindowTitle(self.AppTitle)
self.show()
self.output.insertPlainText(">>> Program Started\n")
def initUI(self):
#set background image of main window
oImage = QImage("background.jpg")
sImage = oImage.scaled(QSize(*self.AppSize))
palette = QPalette()
palette.setBrush(10, QBrush(sImage))
self.setPalette(palette)
#settings of image 1 button
image1 = QPushButton('First Image', self)
image1.setToolTip('Click to choose first photo')
image1.resize(image1.sizeHint())
image1.clicked.connect(self.openFile1NameDialog)
#settings of image 2 button
image2 = QPushButton('Second Image', self)
image2.setToolTip('Click to choose second photo')
image2.resize(image2.sizeHint())
image2.clicked.connect(self.openFile2NameDialog)
#settings of result button
self.result = QPushButton('Result path', self)
self.result.setToolTip('Click to choose where to save the result')
self.result.resize(self.result.sizeHint())
self.result.clicked.connect(self.saveFileDialog)
self.result.setEnabled(False)
#settings of save result check box
self.save_res = QCheckBox('Save Result', self)
self.save_res.setToolTip('Click this to save the output result on the disk')
self.save_res.stateChanged.connect(self.saveResult)
self.save_res.setAutoFillBackground(True)
p = self.save_res.palette()
p.setColor(self.save_res.backgroundRole(), Qt.white)
self.save_res.setPalette(p)
#settings of detect button
detect = QPushButton('Detect', self)
detect.setToolTip('Click to detect changes between inputs')
detect.resize(detect.sizeHint())
detect.clicked.connect(self.detectClicked)
# creating a plainText box for output messages
self.output = QPlainTextEdit(self)
#settings of quit button
quit = QPushButton('Quit', self)
quit.setToolTip('Click to quit the app')
quit.resize(quit.sizeHint())
quit.clicked.connect(QApplication.instance().quit)
# setting layout of main window
resultBox = QHBoxLayout()
resultBox.setSpacing(10)
resultBox.addWidget(self.result)
resultBox.addWidget(self.save_res)
leftBox = QVBoxLayout()
leftBox.addWidget(image1)
leftBox.addWidget(image2)
leftBox.addLayout(resultBox)
leftBox.addStretch(1)
leftBox.addWidget(detect)
rightBox = QVBoxLayout()
rightBox.addWidget(self.output)
rightBox.addStretch(1)
rightBox.addWidget(quit)
layout = QHBoxLayout()
layout.addLayout(leftBox)
layout.addStretch(1)
layout.addLayout(rightBox)
self.setLayout(layout)
def detectClicked(self):
if self.image1 == "":
self.output.insertPlainText("! Error: Enter first image\n")
elif self.image2 == "":
self.output.insertPlainText("! Error: Enter second image\n")
else:
self.output.insertPlainText(">>> Detection Started\n")
run_detection(self.image1, self.image2, self.NUMBER_OF_SLICES)
def openFile1NameDialog(self):
options = QFileDialog.Options()
options |= QFileDialog.DontUseNativeDialog
fileName, _ = QFileDialog.getOpenFileName(self,"QFileDialog.getOpenFileName()", "","All Files (*);;PNG Files (*.png);;JPG Files (*.jpg);;JPEG Files (*.jpeg)", options=options)
if fileName:
self.image1 = fileName
self.output.insertPlainText(">>> First image is {}\n".format(self.image1))
def openFile2NameDialog(self):
options = QFileDialog.Options()
options |= QFileDialog.DontUseNativeDialog
fileName, _ = QFileDialog.getOpenFileName(self,"QFileDialog.getOpenFileName()", "","All Files (*);;PNG Files (*.png);;JPG Files (*.jpg);;JPEG Files (*.jpeg)", options=options)
if fileName:
self.image2 = fileName
self.output.insertPlainText(">>> Second image is {}\n".format(self.image2))
def saveFileDialog(self):
options = QFileDialog.Options()
options |= QFileDialog.DontUseNativeDialog
fileName, _ = QFileDialog.getSaveFileName(self,"QFileDialog.getSaveFileName()","","All Files (*);;PNG Files (*.png)", options=options)
if fileName:
self.result_path = fileName
self.output.insertPlainText(">>> Result save to {}\n".format(self.result_path))
def saveResult(self, state):
if state == Qt.Checked:
self.result.setEnabled(True)
self.result_path = ""
else:
self.result.setEnabled(False)
self.result_path = ""
class _SingleRoiCtrlWidget(QWidget):
"""_SingleRoiCtrlWidget class.
Widget which controls a single ROI.
"""
# TODO: locked currently is always 0
# (idx, activated, locked, x, y, w, h) where idx starts from 1
roi_geometry_change_sgn = pyqtSignal(object)
_pos_validator = QIntValidator(-10000, 10000)
_size_validator = QIntValidator(1, 10000)
def __init__(self,
roi: RectROI,
*,
mediator=None,
with_lock=True,
parent=None):
super().__init__(parent=parent)
self._roi = roi
# Here is mediator is a general mediator object which has a slot
# 'onRoiGeometryChange'.
self._mediator = mediator
idx = self._roi.index
self._activate_cb = QCheckBox(f"ROI{idx}")
palette = self._activate_cb.palette()
palette.setColor(palette.WindowText,
FColor.mkColor(config['GUI_ROI_COLORS'][idx - 1]))
self._activate_cb.setPalette(palette)
self._with_lock = with_lock
self._lock_cb = QCheckBox("Lock")
self._width_le = SmartLineEdit()
self._width_le.setValidator(self._size_validator)
self._height_le = SmartLineEdit()
self._height_le.setValidator(self._size_validator)
self._px_le = SmartLineEdit()
self._px_le.setValidator(self._pos_validator)
self._py_le = SmartLineEdit()
self._py_le.setValidator(self._pos_validator)
self._line_edits = (self._width_le, self._height_le, self._px_le,
self._py_le)
self.initUI()
self.initConnections()
self.disableAllEdit()
def initUI(self):
layout = QHBoxLayout()
layout.addWidget(self._activate_cb)
if self._with_lock:
layout.addWidget(self._lock_cb)
layout.addWidget(QLabel("w: "))
layout.addWidget(self._width_le)
layout.addWidget(QLabel("h: "))
layout.addWidget(self._height_le)
layout.addWidget(QLabel("x: "))
layout.addWidget(self._px_le)
layout.addWidget(QLabel("y: "))
layout.addWidget(self._py_le)
self.setLayout(layout)
def initConnections(self):
self._width_le.value_changed_sgn.connect(self.onRoiSizeEdited)
self._height_le.value_changed_sgn.connect(self.onRoiSizeEdited)
self._px_le.value_changed_sgn.connect(self.onRoiPositionEdited)
self._py_le.value_changed_sgn.connect(self.onRoiPositionEdited)
self._roi.sigRegionChangeFinished.connect(
self.onRoiGeometryChangeFinished)
self._activate_cb.stateChanged.connect(self.onToggleRoiActivation)
self._activate_cb.stateChanged.emit(self._activate_cb.checkState())
self._lock_cb.stateChanged.connect(self.onLock)
def setLabel(self, text):
self._activate_cb.setText(text)
@pyqtSlot(int)
def onToggleRoiActivation(self, state):
if state == Qt.Checked:
self._roi.show()
self.enableAllEdit()
else:
self._roi.hide()
self.disableAllEdit()
x, y = [int(v) for v in self._roi.pos()]
w, h = [int(v) for v in self._roi.size()]
self.roi_geometry_change_sgn.emit(
(self._roi.index, state == Qt.Checked, 0, x, y, w, h))
@pyqtSlot(object)
def onRoiPositionEdited(self, value):
x, y = [int(v) for v in self._roi.pos()]
w, h = [int(v) for v in self._roi.size()]
if self.sender() == self._px_le:
x = int(self._px_le.text())
elif self.sender() == self._py_le:
y = int(self._py_le.text())
# If 'update' == False, the state change will be remembered
# but not processed and no signals will be emitted.
self._roi.setPos((x, y), update=False)
# trigger sigRegionChanged which moves the handler(s)
# finish=False -> sigRegionChangeFinished will not emit, which
# otherwise triggers infinite recursion
self._roi.stateChanged(finish=False)
state = self._activate_cb.isChecked()
self.roi_geometry_change_sgn.emit(
(self._roi.index, state, 0, x, y, w, h))
@pyqtSlot(object)
def onRoiSizeEdited(self, value):
x, y = [int(v) for v in self._roi.pos()]
w, h = [int(v) for v in self._roi.size()]
if self.sender() == self._width_le:
w = int(self._width_le.text())
elif self.sender() == self._height_le:
h = int(self._height_le.text())
# If 'update' == False, the state change will be remembered
# but not processed and no signals will be emitted.
self._roi.setSize((w, h), update=False)
# trigger sigRegionChanged which moves the handler(s)
# finish=False -> sigRegionChangeFinished will not emit, which
# otherwise triggers infinite recursion
self._roi.stateChanged(finish=False)
self.roi_geometry_change_sgn.emit(
(self._roi.index, self._activate_cb.isChecked(), 0, x, y, w, h))
@pyqtSlot(object)
def onRoiGeometryChangeFinished(self, roi):
"""Connect to the signal from an ROI object."""
x, y = [int(v) for v in roi.pos()]
w, h = [int(v) for v in roi.size()]
self.updateParameters(x, y, w, h)
# inform widgets outside this window
self.roi_geometry_change_sgn.emit(
(roi.index, self._activate_cb.isChecked(), 0, x, y, w, h))
def notifyRoiParams(self):
# fill the QLineEdit(s) and Redis
self._roi.sigRegionChangeFinished.emit(self._roi)
def reloadRoiParams(self, cfg):
state, _, x, y, w, h = [v.strip() for v in cfg.split(',')]
self.roi_geometry_change_sgn.disconnect()
self._px_le.setText(x)
self._py_le.setText(y)
self._width_le.setText(w)
self._height_le.setText(h)
self.roi_geometry_change_sgn.connect(
self._mediator.onRoiGeometryChange)
self._activate_cb.setChecked(bool(int(state)))
def updateParameters(self, x, y, w, h):
self.roi_geometry_change_sgn.disconnect()
self._px_le.setText(str(x))
self._py_le.setText(str(y))
self._width_le.setText(str(w))
self._height_le.setText(str(h))
self.roi_geometry_change_sgn.connect(
self._mediator.onRoiGeometryChange)
def setEditable(self, editable):
for w in self._line_edits:
w.setDisabled(not editable)
@pyqtSlot(int)
def onLock(self, state):
self._roi.setLocked(state == Qt.Checked)
self.setEditable(not state == Qt.Checked)
def disableAllEdit(self):
self.setEditable(False)
self._lock_cb.setDisabled(True)
def enableAllEdit(self):
self._lock_cb.setDisabled(False)
self.setEditable(True)
