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af_gui.py
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import pyqtgraph as pg
import numpy as np
import cv2
import pypylon.pylon as py
import serial
from pyqtgraph.Qt import QtCore, QtGui
import sys
import gui_builder as gb
import LenseController as af
def is_integer(s):
# Check if a string represents an integer.
try:
int(s)
return True
except ValueError:
return False
class CameraControlBox(QtGui.QWidget):
'''
Widget with simple camera controls:
connect/disconnect cam
start video/stop video
slider to set exposure time
'''
# Create some signals to communicate with other widgets.
connection_changed = QtCore.Signal()
new_frame = QtCore.Signal()
video_start = QtCore.Signal()
video_stop = QtCore.Signal()
def __init__(self, parent):
QtGui.QWidget.__init__(self, parent)
self.cam_connected = False
self.video_running = False
self.eMax = 200000
self.eMin = 20
self.init_gui()
self.videoTimer = QtCore.QTimer()
self.videoTimer.timeout.connect(self.update_video)
def init_gui(self):
# Initialize user interface.
# Set sizes.
self.setFixedWidth(300)
self.setFixedHeight(100)
sliderWidth = 200
self.setWindowTitle('CameraControl')
# Create main + sub layouts.
mainLayout = QtGui.QGridLayout(self)
btnLayout = QtGui.QGridLayout(self)
expLayout = QtGui.QGridLayout(self)
# Create Layout for cam connect/disconnect-
# and video start/stop-buttons.
# Button Layout Start++++++++++++++++++++++++++++
# connect/disconnect-button
self.connectBtn = QtGui.QPushButton("Connect Cam")
# add callback function
self.connectBtn.clicked.connect(self.connectDisconnectCam)
# start/stop-video-button
self.startStopBtn = QtGui.QPushButton("Start Video")
# add callback function
self.startStopBtn.clicked.connect(self.startStopVideo)
self.startStopBtn.setEnabled(False)
# Add Buttons to parent layout.
btnLayout.addWidget(
self.connectBtn, 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
btnLayout.addWidget(
self.startStopBtn, 0, 1, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Button Layout Stop+++++++++++++++++++++++++++++
# Create slider for exposure time.
# Exposure Time Layout Start++++++++++++++++++++++++++++
self.expSlider = gb.make_slider(
self.eMin, self.eMin,
self.eMax, 'horizontal')
self.expSlider.setFixedWidth(sliderWidth)
self.expSlider.setEnabled(False)
self.expSlider.valueChanged.connect(self.slider_CB)
self.expEdit = QtGui.QLineEdit('10')
self.expEdit.setEnabled(False)
# add callback function
self.expEdit.returnPressed.connect(self.edit_CB)
expLayout.addWidget(
self.expSlider, 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
expLayout.addWidget(
self.expEdit, 0, 1, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Exposure Time Layout Stop++++++++++++++++++++++++++++
# Add sub layouts to main layout.
mainLayout.addLayout(
btnLayout, 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
mainLayout.addLayout(
expLayout, 1, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
def startStopVideo(self):
# Function that starts and stops video.
if self.video_running:
# if video is running:
# stop timer
self.videoTimer.stop()
# emit video stopped signal
self.video_stop.emit()
# reset button text
self.startStopBtn.setText('Start Video')
self.video_running = False
# enable connect/disconnect-button
self.connectBtn.setEnabled(True)
# destroy video window
cv2.destroyAllWindows()
else:
# if video is not running:
# create video window
cv2.namedWindow("Video")
# start timer
self.videoTimer.start(30)
# emit video start signal
self.video_start.emit()
# set start/stop-button text to "Stop Video"
self.startStopBtn.setText('Stop Video')
# disable connect/disconnect-button
self.connectBtn.setEnabled(False)
self.video_running = True
def edit_CB(self):
# Callback function for exposure time text edit
# Check if input is integer.
if is_integer(self.expEdit.text()):
# Cast input to integer.
T = int(self.expEdit.text())
# Check if value is within exposure time
# limits and set slider value accordingly.
if T >= self.eMin and T <= self.eMax:
self.cam.ExposureTime = T
self.expSlider.setValue(T)
else:
# If input is no integer, reset text to last
# valid input (slider value).
self.expEdit.setText(str(self.expSlider.value()))
def slider_CB(self):
# Callback function for exposure time slider
# Get current slider value.
T = self.expSlider.value()
# Set edit text to slider value.
self.expEdit.setText(str(T))
# Set cam exposure time to current value.
self.cam.ExposureTime = T
def update_video(self):
# Update current image in video window.
# Grab one image.
img = np.zeros((1, 1))
if self.cam.NumReadyBuffers:
res = self.cam.RetrieveResult(1000)
if res:
try:
if res.GrabSucceeded():
img = res.Array
finally:
res.Release()
# Save last image.
self.currImg = img
# Emit new frame signal.
self.new_frame.emit()
# Display new image in video window.
cv2.imshow('Video', self.currImg)
# Wait 1 ms.
cv2.waitKey(1)
def connectDisconnectCam(self):
# Callback for connect/disconnect cam button.
# If cam is connected: disconnect cam.
if self.cam_connected:
try:
# Close cam.
self.cam.Close()
# Reset button text.
self.connectBtn.setText('Connect Cam')
# Disable video button.
self.startStopBtn.setEnabled(False)
self.cam_connected = False
# Disable slider and text edit for exposure time.
self.expEdit.setEnabled(False)
self.expSlider.setEnabled(False)
except:
# If an error occured: display message box.
msgBox = QtGui.QMessageBox()
msgBox.setText("Cam Connection Error")
msgBox.exec_()
# If no cam is connected: try to connect to first device.
else:
try:
# Try to create InstantCamera object from first device.
self.cam = py.InstantCamera(
py.TlFactory.GetInstance().CreateFirstDevice())
# Open cam.
self.cam.Open()
# Disable auto exposure.
self.cam.ExposureAuto = "Off"
# Disable auto gain.
self.cam.GainAuto = "Off"
# Get current exposure time.
T = int(self.cam.ExposureTime())
# Set exposure time text edit to current exposure time value.
self.expEdit.setText(str(T))
# Check if exposure time is within limits and
# set slider and cam exposure time accordingly.
if T > self.eMax:
self.expSlider.setValue(self.eMax)
self.cam.ExposureTime = self.eMax
else:
self.expSlider.setValue(T)
# Set button text to "Disconnect Cam".
self.connectBtn.setText('Disconnect Cam')
self.cam_connected = True
# Enable start/stop-video-button.
self.startStopBtn.setEnabled(True)
# Enable text edit and slider for exposure time.
self.expEdit.setEnabled(True)
self.expSlider.setEnabled(True)
self.cam.StartGrabbing(py.GrabStrategy_LatestImages)
except:
# Catch connection error with message box.
msgBox = QtGui.QMessageBox()
msgBox.setText("Cam Connection Error")
msgBox.exec_()
# Emit connection changed signal.
self.connection_changed.emit()
def closeEvent(self, event):
# On window close event: Destroy video window and close cam.
cv2.destroyAllWindows()
if self.cam_connected:
self.cam.StopGrabbing()
self.cam.Close()
class LenseControlBox(QtGui.QWidget):
'''Widget with simple controls for zoom, iris and focus motors
'''
# Create signal to let other widgets know,
# that the lense connection status changed.
connection_changed = QtCore.Signal()
def init_gui(self):
# Initialize user interface.
gotoText = "Submit"
sliderWidth = 250
iMax = 100
zMax = 500
fMax = 500
iMin = 0
zMin = 0
fMin = 0
iPos = 0
zPos = 0
fPos = 0
# Set size.
self.setFixedWidth(700)
self.setFixedHeight(200)
# Set window title.
self.setWindowTitle('LenseControl')
# Create main layout.
mainLayout = QtGui.QGridLayout(self)
# Create layout for init-buttons.
initLayout = QtGui.QGridLayout(self)
# Create button to init all motors at the same time.
self.initBtn = QtGui.QPushButton("Init Lense")
self.initBtn.clicked.connect(self.init_all_motors)
# Add init button to initLayout.
initLayout.addWidget(
self.initBtn, 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Create parent lyout for iris, zoom and focus layouts.
ifzLayout = QtGui.QGridLayout(self)
# Create iris controls layout.
# Iris control start +++++++++++++++++++++++++++++++++++++++++++
# Create iris slider, set size and connect callback.
isliderLayout = QtGui.QGridLayout(self)
self.irisSlider = gb.make_slider(iPos, iMin, iMax, 'horizontal')
self.irisSlider.valueChanged.connect(self.iSliderCB)
self.irisSlider.setFixedWidth(sliderWidth)
# Create labels.
self.iLabel = QtGui.QLabel(str(iPos))
self.imaxLabel = QtGui.QLabel(str(iMax))
self.iminLabel = QtGui.QLabel(str(iMin))
# Add elements to iris slider layout.
isliderLayout.addWidget(
self.iLabel, 0, 1, 1, 1,
alignment=QtCore.Qt.AlignCenter)
isliderLayout.addWidget(
self.irisSlider, 1, 1, 1, 1,
alignment=QtCore.Qt.AlignCenter)
isliderLayout.addWidget(
self.iminLabel, 1, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
isliderLayout.addWidget(
self.imaxLabel, 1, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Create additional controls.
# 'Go to' - button
self.iGotoBtn = QtGui.QPushButton(gotoText)
self.iGotoBtn.clicked.connect(self.iGoTo)
# 'Enable' - checkbox
self.iCheck = QtGui.QCheckBox('Enable')
self.iCheck.setCheckState(QtCore.Qt.Checked)
self.iCheck.setTristate(False)
self.iCheck.stateChanged.connect(self.iEnableCB)
# 'Init' - button
self.iInitBtn = QtGui.QPushButton('Init')
self.iInitBtn.clicked.connect(self.iInit)
# Add iris controls to parent layout.
ifzLayout.addWidget(
QtGui.QLabel("Iris :"), 0, 0,
1, 1, alignment=QtCore.Qt.AlignLeft)
ifzLayout.addLayout(
isliderLayout, 0, 1, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addWidget(
self.iGotoBtn, 0, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addWidget(
self.iCheck, 0, 3, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addWidget(
self.iInitBtn, 0, 4, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Iris control stop +++++++++++++++++++++++++++++++++++++++++++
# Create zoom controls layout.
# Zoom control start +++++++++++++++++++++++++++++++++++++++++++
# Create zoom slider, set size and connect callback.
zsliderLayout = QtGui.QGridLayout(self)
self.zoomSlider = gb.make_slider(zPos, zMin, zMax, 'horizontal')
self.zoomSlider.valueChanged.connect(self.zSliderCB)
self.zoomSlider.setFixedWidth(sliderWidth)
# Create labels.
self.zLabel = QtGui.QLabel(str(zPos))
self.zmaxLabel = QtGui.QLabel(str(zMax))
self.zminLabel = QtGui.QLabel(str(zMin))
# Add elements to zoom slider layout.
zsliderLayout.addWidget(
self.zLabel, 0, 1, 1, 1,
alignment=QtCore.Qt.AlignCenter)
zsliderLayout.addWidget(
self.zoomSlider, 1, 1, 1, 1,
alignment=QtCore.Qt.AlignCenter)
zsliderLayout.addWidget(
self.zminLabel, 1, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
zsliderLayout.addWidget(
self.zmaxLabel, 1, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Create additional controls.
# 'Go to' - button
self.zGotoBtn = QtGui.QPushButton(gotoText)
self.zGotoBtn.clicked.connect(self.zGoTo)
# 'Enable' - checkbox
self.zCheck = QtGui.QCheckBox('Enable')
self.zCheck.setCheckState(QtCore.Qt.Checked)
self.zCheck.setTristate(False)
self.zCheck.stateChanged.connect(self.zEnableCB)
# 'Init' - button
self.zInitBtn = QtGui.QPushButton('Init')
self.zInitBtn.clicked.connect(self.zInit)
# Add zoom controls to parent layout.
ifzLayout.addWidget(
QtGui.QLabel("Zoom :"), 1, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addLayout(
zsliderLayout, 1, 1, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addWidget(
self.zGotoBtn, 1, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addWidget(
self.zCheck, 1, 3, 1, 1,
alignment=QtCore.Qt.AlignLeft)
ifzLayout.addWidget(
self.zInitBtn, 1, 4, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Zoom control stop +++++++++++++++++++++++++++++++++++++++++++
# Create focus controls layout.
# Focus control start +++++++++++++++++++++++++++++++++++++++++++
# Create focus slider, set size and connect callback.
fsliderLayout = QtGui.QGridLayout(self)
self.focusSlider = gb.make_slider(fPos, fMin, fMax, 'horizontal')
self.focusSlider.valueChanged.connect(self.fSliderCB)
self.focusSlider.setFixedWidth(sliderWidth)
# Create labels.
self.fLabel = QtGui.QLabel(str(fPos))
self.fmaxLabel = QtGui.QLabel(str(fMax))
self.fminLabel = QtGui.QLabel(str(fMin))
# Add elements to focus slider layout.
fsliderLayout.addWidget(
self.fLabel, 0, 1, 1, 1,
alignment=QtCore.Qt.AlignCenter)
fsliderLayout.addWidget(
self.focusSlider, 1, 1, 1, 1,
alignment=QtCore.Qt.AlignCenter)
fsliderLayout.addWidget(
self.fminLabel, 1, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
fsliderLayout.addWidget(
self.fmaxLabel, 1, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Create additional controls.
# 'Go to' - button
self.fGotoBtn = QtGui.QPushButton(gotoText)
self.fGotoBtn.clicked.connect(self.fGoTo)
# 'Enable' - checkbox
self.fCheck = QtGui.QCheckBox('Enable')
self.fCheck.setCheckState(QtCore.Qt.Checked)
self.fCheck.setTristate(False)
self.fCheck.stateChanged.connect(self.fEnableCB)
# 'Init' - button
self.fInitBtn = QtGui.QPushButton('Init')
self.fInitBtn.clicked.connect(self.fInit)
# Add focus controls to parent layout.
ifzLayout.addWidget(
QtGui.QLabel("Focus :"),
2,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
ifzLayout.addLayout(
fsliderLayout,
2,
1,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
ifzLayout.addWidget(
self.fGotoBtn,
2,
2,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
ifzLayout.addWidget(
self.fCheck,
2,
3,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
ifzLayout.addWidget(
self.fInitBtn,
2,
4,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
# Focus control stop +++++++++++++++++++++++++++++++++++++++++++
# Set spacing.
ifzLayout.setVerticalSpacing(20)
# Group 'Go to'-, 'Init'-buttons and checkboxes for easier access.
self.gotoBtns = [self.iGotoBtn, self.zGotoBtn, self.fGotoBtn]
self.initBtns = [self.iInitBtn, self.zInitBtn, self.fInitBtn]
self.checkBoxes = [self.iCheck, self.zCheck, self.fCheck]
# Disable all buttons and checkboxes.
for i in range(3):
self.gotoBtns[i].setEnabled(False)
self.checkBoxes[i].setEnabled(False)
self.initBtns[i].setEnabled(False)
# Add sub layouts to main layout.
mainLayout.addLayout(
initLayout,
0,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
mainLayout.addLayout(
ifzLayout,
1,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
def iInit(self):
# Callback for iris init button.
# Set cursor to 'busy'-cursor.
QtGui.QApplication.setOverrideCursor(
QtGui.QCursor(QtCore.Qt.WaitCursor)
)
# Disable button.
self.setEnabled(False)
# Send init command to iris motor.
self.lc.iris.init_motor()
# Enable button.
self.setEnabled(True)
# Reset iris slider value.
self.irisSlider.setValue(0)
# Restore cursor.
QtGui.QApplication.restoreOverrideCursor()
def zInit(self):
# Callback for zoom init button.
# Set cursor to 'busy'-cursor.
QtGui.QApplication.setOverrideCursor(
QtGui.QCursor(QtCore.Qt.WaitCursor)
)
# Disable button.
self.setEnabled(False)
# Send init command to zoom motor.
self.lc.zoom.init_motor()
# Enable button.
self.setEnabled(True)
# Reset zoom slider value.
self.zoomSlider.setValue(0)
# Restore cursor.
QtGui.QApplication.restoreOverrideCursor()
def fInit(self):
# Callback for focus init button.
# Set cursor to 'busy'-cursor.
QtGui.QApplication.setOverrideCursor(
QtGui.QCursor(QtCore.Qt.WaitCursor)
)
# Disable button.
self.setEnabled(False)
# Send init command to focus motor.
self.lc.focus.init_motor()
# Enable button.
self.setEnabled(True)
# Reset focus slider value.
self.focusSlider.setValue(0)
# Restore cursor.
QtGui.QApplication.restoreOverrideCursor()
def iSliderCB(self):
# Iris slider callback.
# Set iris text edit text to slider value.
self.iLabel.setText(str(self.irisSlider.value()))
def zSliderCB(self):
# Zoom slider callback.
# Set zoom text edit text to slider value.
self.zLabel.setText(str(self.zoomSlider.value()))
def fSliderCB(self):
# Focus slider callback.
# Set focus text edit text to slider value.
self.fLabel.setText(str(self.focusSlider.value()))
def init_all_motors(self):
# Initialize all motors.
# Disable widget.
self.setEnabled(False)
# Create LenseController object.
self.lc = af.LenseController()
# Open controller.
self.lc.open()
# Enable widget.
self.setEnabled(True)
self.lense_init = True
# Reset slider values to zero.
self.zoomSlider.setValue(0)
self.focusSlider.setValue(0)
self.irisSlider.setValue(0)
# Enable all buttons.
for i in range(3):
self.gotoBtns[i].setEnabled(True)
self.checkBoxes[i].setEnabled(True)
self.initBtns[i].setEnabled(True)
# Get lense info.
info = self.lc.get_lense_info()
# Set slider values according to info.
self.irisSlider.setMinimum(info[0])
self.zoomSlider.setMinimum(info[1])
self.focusSlider.setMinimum(info[2])
self.irisSlider.setMaximum(info[6])
self.zoomSlider.setMaximum(info[7])
self.focusSlider.setMaximum(info[8])
self.irisSlider.setValue(info[3])
self.zoomSlider.setValue(info[4])
self.focusSlider.setValue(info[5])
# Set labels according to info
self.iminLabel.setText(str(info[0]))
self.zminLabel.setText(str(info[1]))
self.fminLabel.setText(str(info[2]))
self.iLabel.setText(str(info[3]))
self.zLabel.setText(str(info[4]))
self.fLabel.setText(str(info[5]))
self.imaxLabel.setText(str(info[6]))
self.zmaxLabel.setText(str(info[7]))
self.fmaxLabel.setText(str(info[8]))
# Emit connection change signal.
self.connection_changed.emit()
def iGoTo(self):
# Callback for iris 'got to'-button.
# Set cursor to 'busy'-cursor.
QtGui.QApplication.setOverrideCursor(
QtGui.QCursor(QtCore.Qt.WaitCursor)
)
# Disable widget.
self.setEnabled(False)
# Send 'go to'-command to lense.
self.lc.iris.go_to_position(self.irisSlider.value())
# Enable widget.
self.setEnabled(True)
# Reset cursor.
QtGui.QApplication.restoreOverrideCursor()
def iEnableCB(self):
# Iris enable-checkbox-callback.
if self.iCheck.isChecked():
# Send enable command.
self.lc.iris.enable()
else:
# Send disable command.
self.lc.iris.disable()
def fEnableCB(self):
# Focus enable-checkbox-callback.
if self.fCheck.isChecked():
# Send enable command.
self.lc.focus.enable()
else:
# Send disable command.
self.lc.focus.disable()
def zEnableCB(self):
# Zoom enable-checkbox-callback.
if self.zCheck.isChecked():
# Send enable command.
self.lc.zoom.enable()
else:
# Send disable command.
self.lc.zoom.disable()
def zGoTo(self):
# Callback for zoom 'got to'-button.
# Set cursor to 'busy'-cursor.
QtGui.QApplication.setOverrideCursor(
QtGui.QCursor(QtCore.Qt.WaitCursor)
)
# Disable widget.
self.setEnabled(False)
# Send 'go to'-command to lense.
self.lc.zoom.go_to_position(self.zoomSlider.value())
# Enable widget.
self.setEnabled(True)
# Reset cursor.
QtGui.QApplication.restoreOverrideCursor()
def fGoTo(self):
# Callback for focus 'got to'-button.
# Set cursor to 'busy'-cursor.
QtGui.QApplication.setOverrideCursor(
QtGui.QCursor(QtCore.Qt.WaitCursor)
)
# Disable widget.
self.setEnabled(False)
# Send 'go to'-command to lense.
self.lc.focus.go_to_position(self.focusSlider.value())
# Enable widget.
self.setEnabled(True)
# Reset cursor.
QtGui.QApplication.restoreOverrideCursor()
def __init__(self, parent):
# Constructor
QtGui.QWidget.__init__(self, parent)
self.lense_init = False
self.init_gui()
def closeEvent(self, event):
# on window close event:
# close LenseController
self.lc.close()
class SweepBox(QtGui.QWidget):
sweep_started = QtCore.Signal()
def __init__(self, parent, defaultPath):
QtGui.QWidget.__init__(self, parent)
self.defaultPath = defaultPath
self.init_gui()
def start_sweep(self):
self.name = self.nameEdit.text()
start = int(self.startSpin.value())
stop = int(self.stopSpin.value())
step = int(self.stepSpin.value())
if stop > start:
self.pos = np.arange(start, stop+step, step)
elif stop < start:
self.pos = np.arange(start, stop-step, -1*step)
self.path = self.pathEdit.text()
self.sweep_started.emit()
def init_gui(self):
pathWidth = 200
self.setFixedWidth(300)
self.setFixedHeight(200)
self.setWindowTitle('Sweep')
mainLayout = QtGui.QGridLayout(self)
# EDIT LAYOUT
editLayout = QtGui.QGridLayout(self)
self.nameEdit = QtGui.QLineEdit()
self.pathEdit = QtGui.QLineEdit(self.defaultPath)
self.pathEdit.setFixedWidth(pathWidth)
self.startSpin = gb.make_spinbox(0, 100, 0, True, 0, 5000)
self.stopSpin = gb.make_spinbox(5000, 100, 0, True, 0, 5000)
self.stepSpin = gb.make_spinbox(500, 10, 0, True, 0, 2500)
self.startBtn = QtGui.QPushButton("Start Sweep")
self.startBtn.clicked.connect(self.start_sweep)
editLayout.addWidget(
QtGui.QLabel("Name: "),
0,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
self.nameEdit,
0,
1,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
QtGui.QLabel("Save Path: "),
1,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
self.pathEdit,
1,
1,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
QtGui.QLabel("Start"),
2,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
QtGui.QLabel("Stop"),
3,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
QtGui.QLabel("Step"),
4,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
self.startSpin,
2,
1,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
self.stopSpin,
3,
1,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
self.stepSpin,
4,
1,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
editLayout.addWidget(
self.startBtn,
5,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
mainLayout.addLayout(
editLayout,
0,
0,
1,
1,
alignment=QtCore.Qt.AlignLeft
)
def set_to_min_max(s, minS, maxS, def_value):
# Check if integer value of string s is inside
# the range of minS and maxS.
# If not, clip to minS or maxS.
if is_integer(s):
x = int(s)
if x < minS:
x = minS
elif x > maxS:
x = maxS
return x
else:
return def_value
class AOIBox(QtGui.QWidget):
'''Widget with simple controls to select AOI.
'''
aoi_changed = QtCore.Signal()
def __init__(self, parent, maxX, maxY):
# Constructor
QtGui.QWidget.__init__(self, parent)
self.maxX = maxX
self.maxY = maxY
self.x1 = 0
self.y1 = 0
self.x2 = maxX
self.y2 = maxY
self.init_gui()
def aoiCB(self):
# Callback for changes in any of the AOI text edit fields.
self.x1 = set_to_min_max(self.x1Edit.text(), 0, self.maxX, 0)
self.x2 = set_to_min_max(self.x2Edit.text(), 0, self.maxX, 0)
self.y1 = set_to_min_max(self.y1Edit.text(), 0, self.maxY, 0)
self.y2 = set_to_min_max(self.y2Edit.text(), 0, self.maxY, 0)
self.x1Edit.setText(str(self.x1))
self.y1Edit.setText(str(self.y1))
self.x2Edit.setText(str(self.x2))
self.y2Edit.setText(str(self.y2))
self.aoi_changed.emit()
def init_gui(self):
# Initialize user interface.
self.setWindowTitle('AOIControls')
mainLayout = QtGui.QGridLayout(self)
# Controls for AOI Point 1
p1Layout = QtGui.QGridLayout(self)
p1Layout.addWidget(
QtGui.QLabel("P1: "), 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
p1Layout.addWidget(
QtGui.QLabel("x1: "), 0, 1, 1, 1,
alignment=QtCore.Qt.AlignLeft)
self.x1Edit = QtGui.QLineEdit()
self.x1Edit.setText(str(0))
p1Layout.addWidget(
self.x1Edit, 0, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
p1Layout.addWidget(
QtGui.QLabel("y1: "), 0, 3, 1, 1,
alignment=QtCore.Qt.AlignLeft)
self.y1Edit = QtGui.QLineEdit()
self.y1Edit.setText(str(0))
p1Layout.addWidget(
self.y1Edit, 0, 4, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# Controls for AOI Point 2
p2Layout = QtGui.QGridLayout(self)
p2Layout.addWidget(
QtGui.QLabel("P2: "), 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
p2Layout.addWidget(
QtGui.QLabel("x2: "), 0, 1, 1, 1,
alignment=QtCore.Qt.AlignLeft)
self.x2Edit = QtGui.QLineEdit()
self.x2Edit.setText(str(self.maxX))
p2Layout.addWidget(
self.x2Edit, 0, 2, 1, 1,
alignment=QtCore.Qt.AlignLeft)
p2Layout.addWidget(
QtGui.QLabel("y2: "), 0, 3, 1, 1,
alignment=QtCore.Qt.AlignLeft)
self.y2Edit = QtGui.QLineEdit()
self.y2Edit.setText(str(self.maxY))
p2Layout.addWidget(
self.y2Edit, 0, 4, 1, 1,
alignment=QtCore.Qt.AlignLeft)
# callbacks
allEdits = [self.x1Edit, self.y1Edit, self.x2Edit, self.y2Edit]
for edit in allEdits:
edit.returnPressed.connect(self.aoiCB)
mainLayout.addLayout(
p1Layout, 0, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
mainLayout.addLayout(
p2Layout, 1, 0, 1, 1,
alignment=QtCore.Qt.AlignLeft)
class AfBox(QtGui.QWidget):
'''Widget with simple controls to select Autofocus-algorithm.
'''
# Create signal to inform other widgets,
# that the autofocus is in progress.
af_started = QtCore.Signal()
def __init__(self, parent, minF, maxF, cStepMin, fStepMin):
# Constructor
QtGui.QWidget.__init__(self, parent)
self.hyst = 0
self.minF = minF
self.maxF = maxF
self.start = minF
self.stop = maxF
self.cStepMin = cStepMin
self.cStep = cStepMin
self.fStepMin = fStepMin
self.fStep = fStepMin
self.algorithm = 0
self.init_gui()
def update_af_edits(self, index):
# Update (enable/disable) text edit fields
# when algorithm selection is changed.
self.algorithm = index
if index == 0:
self.pCStepEdit.setEnabled(False)
self.pFStepEdit.setEnabled(True)
elif index == 1:
self.pCStepEdit.setEnabled(True)
self.pFStepEdit.setEnabled(True)
elif index == 2:
self.pCStepEdit.setEnabled(False)
self.pFStepEdit.setEnabled(False)
def start_af(self):
# Start autofocus.
# Get focus start postion.
start = set_to_min_max(
self.pStartEdit.text(), self.minF,
self.maxF, self.minF)
# Get focus stop postion.
stop = set_to_min_max(
self.pStopEdit.text(), self.minF,
self.maxF, self.maxF)
# Correct invalid entries.
if start == stop:
start = self.minF
if start == stop:
stop = self.maxF
# Check if start and stop are valid. Display message box if not.
if start > stop:
msgBox = QtGui.QMessageBox()
msgBox.setText("Start Value must not be higher than Stop value!")
msgBox.exec_()
else:
# Get coarse step from text edit.
cStep = set_to_min_max(
self.pCStepEdit.text(), self.cStepMin,
round(abs(stop-start)/2.0), self.cStepMin)
# Get fine step from text edit.
fStep = set_to_min_max(