'''Utily functions go here'''
import collections
import os
import sys
try:
from PyQt4 import QtGui, QtCore
qt_widgets = QtGui
except ImportError:
from PyQt5 import QtCore, QtGui
from PyQt5 import QtWidgets as qt_widgets
if sys.version_info >= (3,):
unicode = str
def find_qm_files():
"""looking for files with names == qt_locale.qm"""
all_files = collections.OrderedDict()
for root, _, files in os.walk(os.path.join(QtGui.__file__, "..")):
for fname in files:
if (fname.endswith('.qm') and fname.startswith("qt_")
and not fname.startswith("qt_help")):
locale = fname[3:-3]
all_files[locale] = root
return all_files
def create_page(page, parent=None):
"""A page is a custom layout made by stacking vertically various
widgets which can be themselves horizontal collections of widgets
:param page: an interable containing tuples of names of special widget
to position as well as their value.
"""
new_page = qt_widgets.QWidget()
layout = qt_widgets.QVBoxLayout()
for kind, value in page:
if kind.lower() == "text":
add_text_to_layout(layout, value)
elif kind.lower() == "image":
add_image_to_layout(layout, value)
elif kind.lower() == "list of images":
add_list_of_images_to_layout(layout, value)
elif kind.lower() == "list of images with captions":
add_list_of_images_with_captions_to_layout(layout, value)
elif kind.lower() == "list of images with buttons":
add_list_of_images_with_buttons_to_layout(layout, value, parent)
elif kind.lower() == "list of buttons":
add_list_of_buttons_to_layout(layout, value, parent)
elif kind.lower() == "button":
add_button(layout, value, parent)
else:
print("Unrecognized page item: {}".format(kind))
new_page.setLayout(layout)
return new_page
def add_text_to_layout(layout, text):
'''adds some text, as a QLabel, to a layout'''
label = qt_widgets.QLabel(text)
label.setWordWrap(True)
layout.addWidget(label)
def add_image_to_layout(layout, image_file_name):
'''adds an image, as a QLabel, to a layout'''
label = qt_widgets.QLabel()
pixmap = QtGui.QPixmap(image_file_name)
label.setPixmap(pixmap)
layout.addWidget(label)
def add_list_of_images_to_layout(layout, images):
''' adds a list of images shown in a horizontal layout to an
already existing layout'''
h_layout = qt_widgets.QHBoxLayout()
h_box = qt_widgets.QGroupBox('')
for image in images:
add_image_to_layout(h_layout, image)
h_box.setLayout(h_layout)
layout.addWidget(h_box)
def add_list_of_images_with_captions_to_layout(layout, images):
''' adds a list of images shown in a horizontal layout with
caption underneath to an already existing layout'''
h_layout = qt_widgets.QHBoxLayout()
h_box = qt_widgets.QGroupBox('')
for image, caption in images:
widget = qt_widgets.QWidget()
v_layout = qt_widgets.QVBoxLayout()
add_image_to_layout(v_layout, image)
add_text_to_layout(v_layout, caption)
widget.setLayout(v_layout)
h_layout.addWidget(widget)
h_box.setLayout(h_layout)
layout.addWidget(h_box)
def add_list_of_images_with_buttons_to_layout(layout, images, parent):
''' adds a list of images shown in a horizontal layout with
button underneath to an already existing layout'''
h_layout = qt_widgets.QHBoxLayout()
h_box = qt_widgets.QGroupBox('')
for image, label in images:
widget = qt_widgets.QWidget()
v_layout = qt_widgets.QVBoxLayout()
add_image_to_layout(v_layout, image)
add_button(v_layout, label, parent)
widget.setLayout(v_layout)
h_layout.addWidget(widget)
h_box.setLayout(h_layout)
layout.addWidget(h_box)
def add_list_of_buttons_to_layout(layout, button_labels, parent):
''' adds a list of buttons shown in a horizontal layout to an
already existing layout'''
h_layout = qt_widgets.QHBoxLayout()
h_box = qt_widgets.QGroupBox('')
for label in button_labels:
add_button(h_layout, label, parent)
h_box.setLayout(h_layout)
layout.addWidget(h_box)
def add_button(layout, label, parent):
btn = qt_widgets.QPushButton(label)
btn.clicked.connect(parent.button_clicked)
width = btn.fontMetrics().boundingRect(label).width() + 15
btn.setMaximumWidth(width)
layout.addWidget(btn)
class MyPageDialog(qt_widgets.QDialog):
"""Creates a "complex" dialog based on a description as a "page"."""
def __init__(self, title="title", page=None, response=None):
super(MyPageDialog, self).__init__(None,
QtCore.Qt.WindowSystemMenuHint |
QtCore.Qt.WindowTitleHint)
self.setWindowTitle(title)
if page is None:
raise AttributeError
self.response = response
layout = qt_widgets.QVBoxLayout()
widget = create_page(page, parent=self)
layout.addWidget(widget)
self.setLayout(layout)
def button_clicked(self):
sender = self.sender()
self.response.append(sender.text())
self.close()
if __name__ == '__main__':
app = qt_widgets.QApplication([])
page = [("text", "This is a sample text"),
("image", "../ignore/images/python.jpg"),
("text", "More text"),
("button", "button"),
("button", "button 2"),
("list of images with captions",
[("../ignore/images/python.jpg", "caption"),
("../ignore/images/reeborg.png", "a much longer caption"),
("../ignore/images/python.jpg", "yet another long caption")
]),
("list of images with buttons",
[("../ignore/images/python.jpg", "button"),
("../ignore/images/python.jpg", "another button"),
("../ignore/images/python.jpg", "a button with longer label")
]),
("list of images", ["../ignore/images/python.jpg",
"../ignore/images/python.jpg",
"../ignore/images/python.jpg"]),
("list of buttons", ["button A",
"buttton B",
"button C",
"button D",
"button E"])
]
response = []
dialog = MyPageDialog(title="Hello World", page=page, response=response)
dialog.exec_()
app.quit()
print(response)
