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#!/usr/bin/env python
# python-gphoto2 - Python interface to libgphoto2
# http://github.com/jim-easterbrook/python-gphoto2
# Copyright (C) 2014-22 Jim Easterbrook jim@jim-easterbrook.me.uk
#
# This file is part of python-gphoto2.
#
# python-gphoto2 is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# python-gphoto2 is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with python-gphoto2. If not, see
# <https://www.gnu.org/licenses/>.
# "object oriented" version of camera-config-gui.py
from datetime import datetime
import locale
import logging
import sys
from PyQt5 import QtCore, QtWidgets
from PyQt5.QtCore import Qt
import gphoto2 as gp
class MainWindow(QtWidgets.QMainWindow):
def __init__(self):
self.do_init = QtCore.QEvent.registerEventType()
QtWidgets.QMainWindow.__init__(self)
self.setWindowTitle("Camera config")
self.setMinimumWidth(600)
# quit shortcut
quit_action = QtWidgets.QAction('Quit', self)
quit_action.setShortcuts(['Ctrl+Q', 'Ctrl+W'])
quit_action.triggered.connect(QtWidgets.qApp.closeAllWindows)
self.addAction(quit_action)
# main widget
widget = QtWidgets.QWidget()
widget.setLayout(QtWidgets.QGridLayout())
widget.layout().setColumnStretch(0, 1)
self.setCentralWidget(widget)
# 'apply' button
self.apply_button = QtWidgets.QPushButton('apply changes')
self.apply_button.setEnabled(False)
self.apply_button.clicked.connect(self.apply_changes)
widget.layout().addWidget(self.apply_button, 1, 1)
# 'cancel' button
quit_button = QtWidgets.QPushButton('cancel')
quit_button.clicked.connect(QtWidgets.qApp.closeAllWindows)
widget.layout().addWidget(quit_button, 1, 2)
# defer full initialisation (slow operation) until gui is visible
self.camera = gp.Camera()
QtWidgets.QApplication.postEvent(
self, QtCore.QEvent(self.do_init), Qt.LowEventPriority - 1)
def event(self, event):
if event.type() != self.do_init:
return QtWidgets.QMainWindow.event(self, event)
event.accept()
QtWidgets.QApplication.setOverrideCursor(Qt.WaitCursor)
try:
self.initialise()
finally:
QtWidgets.QApplication.restoreOverrideCursor()
return True
def initialise(self):
# get camera config tree
self.camera.init()
self.camera_config = self.camera.get_config()
# create corresponding tree of tab widgets
self.setWindowTitle(self.camera_config.get_label())
top_widget = SectionWidget(self.config_changed, self.camera_config)
scroll_area = QtWidgets.QScrollArea()
scroll_area.setWidget(top_widget)
scroll_area.setWidgetResizable(True)
self.centralWidget().layout().addWidget(scroll_area, 0, 0, 1, 3)
def config_changed(self):
self.apply_button.setEnabled(True)
def apply_changes(self):
self.camera.set_config(self.camera_config)
QtWidgets.qApp.closeAllWindows()
class SectionWidget(QtWidgets.QWidget):
def __init__(self, config_changed, camera_config, parent=None):
QtWidgets.QWidget.__init__(self, parent)
self.setLayout(QtWidgets.QFormLayout())
if camera_config.get_readonly():
self.setDisabled(True)
child_count = camera_config.count_children()
if child_count < 1:
return
tabs = None
for child in camera_config.get_children():
label = '{} ({})'.format(child.get_label(), child.get_name())
child_type = child.get_type()
if child_type == gp.GP_WIDGET_SECTION:
if not tabs:
tabs = QtWidgets.QTabWidget()
self.layout().insertRow(0, tabs)
tabs.addTab(SectionWidget(config_changed, child), label)
elif child_type == gp.GP_WIDGET_TEXT:
self.layout().addRow(label, TextWidget(config_changed, child))
elif child_type == gp.GP_WIDGET_RANGE:
self.layout().addRow(label, RangeWidget(config_changed, child))
elif child_type == gp.GP_WIDGET_TOGGLE:
self.layout().addRow(label, ToggleWidget(config_changed, child))
elif child_type == gp.GP_WIDGET_RADIO:
if child.count_choices() > 3:
widget = MenuWidget(config_changed, child)
else:
widget = RadioWidget(config_changed, child)
self.layout().addRow(label, widget)
elif child_type == gp.GP_WIDGET_MENU:
self.layout().addRow(label, MenuWidget(config_changed, child))
elif child_type == gp.GP_WIDGET_DATE:
self.layout().addRow(label, DateWidget(config_changed, child))
else:
print('Cannot make widget type %d for %s' % (child_type, label))
class TextWidget(QtWidgets.QLineEdit):
def __init__(self, config_changed, config, parent=None):
QtWidgets.QLineEdit.__init__(self, parent)
self.config_changed = config_changed
self.config = config
if self.config.get_readonly():
self.setDisabled(True)
assert self.config.count_children() == 0
value = self.config.get_value()
if value:
if sys.version_info[0] < 3:
value = value.decode('utf-8')
self.setText(value)
self.editingFinished.connect(self.new_value)
def new_value(self):
if sys.version_info[0] < 3:
value = unicode(self.text()).encode('utf-8') # noqa: F821
else:
value = str(self.text())
self.config.set_value(value)
self.config_changed()
class RangeWidget(QtWidgets.QSlider):
def __init__(self, config_changed, config, parent=None):
QtWidgets.QSlider.__init__(self, Qt.Horizontal, parent)
self.config_changed = config_changed
self.config = config
if self.config.get_readonly():
self.setDisabled(True)
assert self.config.count_children() == 0
lo, hi, self.inc = self.config.get_range()
value = self.config.get_value()
self.setRange(max(int(lo / self.inc), -0x80000000),
min(int(hi / self.inc), 0x7fffffff))
self.setValue(max(min(int(value / self.inc), 0x7fffffff), -0x80000000))
self.sliderReleased.connect(self.new_value)
def new_value(self):
value = float(self.value()) * self.inc
self.config.set_value(value)
self.config_changed()
class ToggleWidget(QtWidgets.QCheckBox):
def __init__(self, config_changed, config, parent=None):
QtWidgets.QCheckBox.__init__(self, parent)
self.config_changed = config_changed
self.config = config
if self.config.get_readonly():
self.setDisabled(True)
assert self.config.count_children() == 0
value = self.config.get_value()
self.setChecked(value != 0)
self.clicked.connect(self.new_value)
def new_value(self):
value = self.isChecked()
self.config.set_value((0, 1)[value])
self.config_changed()
class RadioWidget(QtWidgets.QWidget):
def __init__(self, config_changed, config, parent=None):
QtWidgets.QWidget.__init__(self, parent)
self.config_changed = config_changed
self.config = config
if self.config.get_readonly():
self.setDisabled(True)
assert self.config.count_children() == 0
self.setLayout(QtWidgets.QHBoxLayout())
value = self.config.get_value()
self.buttons = []
for choice in self.config.get_choices():
if choice:
button = QtWidgets.QRadioButton(choice)
self.layout().addWidget(button)
if choice == value:
button.setChecked(True)
self.buttons.append((button, choice))
button.clicked.connect(self.new_value)
def new_value(self):
for button, choice in self.buttons:
if button.isChecked():
self.config.set_value(choice)
self.config_changed()
return
class MenuWidget(QtWidgets.QComboBox):
def __init__(self, config_changed, config, parent=None):
QtWidgets.QComboBox.__init__(self, parent)
self.config_changed = config_changed
self.config = config
if self.config.get_readonly():
self.setDisabled(True)
assert self.config.count_children() == 0
value = self.config.get_value()
choice_count = self.config.count_choices()
for n in range(choice_count):
choice = self.config.get_choice(n)
if choice:
self.addItem(choice)
if choice == value:
self.setCurrentIndex(n)
self.currentIndexChanged.connect(self.new_value)
def new_value(self, value):
value = str(self.itemText(value))
self.config.set_value(value)
self.config_changed()
class DateWidget(QtWidgets.QDateTimeEdit):
def __init__(self, config_changed, config, parent=None):
QtWidgets.QDateTimeEdit.__init__(self, parent)
self.config_changed = config_changed
self.config = config
if self.config.get_readonly():
self.setDisabled(True)
assert self.config.count_children() == 0
value = self.config.get_value()
if value:
self.setDateTime(datetime.fromtimestamp(value))
self.dateTimeChanged.connect(self.new_value)
self.setDisplayFormat('yyyy-MM-dd hh:mm:ss')
def new_value(self, value):
value = value.toPyDateTime() - datetime.fromtimestamp(0)
value = int(value.total_seconds())
self.config.set_value(value)
self.config_changed()
if __name__ == "__main__":
locale.setlocale(locale.LC_ALL, '')
logging.basicConfig(
format='%(levelname)s: %(name)s: %(message)s', level=logging.WARNING)
callback_obj = gp.check_result(gp.use_python_logging())
app = QtWidgets.QApplication([])
main = MainWindow()
main.show()
sys.exit(app.exec_())
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