/usr/lib/python2.7/dist-packages/vigra/pyqt/quickdialog.py is in python-vigra 1.10.0+git20160211.167be93+dfsg-5ubuntu1.
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#
# Copyright 2009-2010 by Ullrich Koethe
#
# This file is part of the VIGRA computer vision library.
# The VIGRA Website is
# http://hci.iwr.uni-heidelberg.de/vigra/
# Please direct questions, bug reports, and contributions to
# ullrich.koethe@iwr.uni-heidelberg.de or
# vigra@informatik.uni-hamburg.de
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the
# Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
#######################################################################
import PyQt4.QtGui as qt
import PyQt4.QtCore as qcore
from PyQt4.QtCore import SIGNAL
import os
def alignLabels(*args):
m = 0
for dialogElement in args:
fontMetrics = qt.QFontMetrics(dialogElement.font())
for line in dialogElement.label.text().ascii().split('\n'):
labelWidth = fontMetrics.width(line)
m = max(m, labelWidth)
for dialogElement in args:
dialogElement.label.setFixedWidth(m+10)
class FileDialog(qt.QFrame):
def __init__(self, parent, label, filter):
qt.QFrame.__init__(self, parent)
parent.addWidget(self)
self.filter = filter
self.label = qt.QLabel(label)
self.filename = qt.QLineEdit()
self.filebrowser = qt.QPushButton("Browse...")
self.filebrowser.setFocusPolicy(qcore.Qt.NoFocus)
self._layout = qt.QHBoxLayout()
self._layout.setSpacing(5)
self._layout.addWidget(self.label)
self._layout.addWidget(self.filename, 1)
self._layout.addWidget(self.filebrowser)
self.setLayout(self._layout)
def text(self):
return str(qcore.QFile.encodeName(self.filename.text()))
def setFocus(self):
self.filename.setFocus()
class InputFile(FileDialog):
def __init__(self, parent, label, filter):
FileDialog.__init__(self, parent, label, filter)
self.connect(self.filebrowser, SIGNAL("clicked()"), self.browse)
def browse(self):
fn = qt.QFileDialog.getOpenFileName( "", self.filter, self)
if not fn.isNull():
self.filename.setText(fn)
def validate(self):
try:
filename = str(qcore.QFile.encodeName(self.filename.text()))
file = open(filename)
file.close()
return True
except IOError:
qt.QMessageBox.critical(None, "Error", "File '" + filename + "' not found")
return False
class OutputFile(FileDialog):
def __init__(self, parent, label, filter):
FileDialog.__init__(self, parent, label, filter)
self.connect(self.filebrowser, SIGNAL("clicked()"), self.browse)
def browse(self):
fn = qt.QFileDialog.getSaveFileName( self, "Save File", "", self.filter)
if not fn.isNull():
self.filename.setText(fn)
def validate(self):
try:
filename = str(qcore.QFile.encodeName(self.filename.text()))
file = open(filename)
file.close()
return not qt.QMessageBox.warning(
None, "Warning", "File '" + filename + "' exists",
"Overwrite", "Cancel")
except IOError:
return True
class _OptionalValueInput(qt.QFrame):
def __init__(self, parent, label):
qt.QFrame.__init__(self, parent)
parent.addWidget(self)
self.label = qt.QLabel(label)
self.variable = qt.QLineEdit()
self.variable.setValidator(self._QValidator(self.variable))
self._layout = qt.QHBoxLayout()
self._layout.setSpacing(5)
self._layout.addWidget(self.label)
self._layout.addWidget(self.variable, 1)
self.setLayout(self._layout)
def setFocus(self):
self.variable.setFocus()
def setValue(self, text):
self.variable.setText(str(self._text2Value(text)))
def value(self):
text = self.text()
if text == "":
return None
return self._text2Value(text)
def text(self):
return str(self.variable.text())
def validate(self):
try:
v = self.value()
if v == None:
return True
except:
qt.QMessageBox.critical(None, "Error",
qcore.QString("Field '%1' must contain "+self._mustContain).arg(
self.label.text()))
return False
try:
if v < self.min:
qt.QMessageBox.critical(None, "Error",
qcore.QString("Field '%1' value must be >= "+str(self.min)).arg(
self.label.text()))
return False
except AttributeError:
pass
try:
if v > self.max:
qt.QMessageBox.critical(None, "Error",
qcore.QString("Field '%1' value must be <= "+str(self.max)).arg(
self.label.text()))
return False
except AttributeError:
pass
return True
class OptionalIntegerInput(_OptionalValueInput):
_QValidator = qt.QIntValidator
_text2Value = int
_mustContain = "an integer"
class IntegerInput(OptionalIntegerInput):
def value(self):
return int(self.text())
class OptionalFloatInput(_OptionalValueInput):
_QValidator = qt.QDoubleValidator
_text2Value = float
_mustContain = "a float"
class FloatInput(OptionalFloatInput):
def value(self):
return float(self.text())
class OptionalStringInput(qt.QFrame):
def __init__(self, parent, label):
qt.QFrame.__init__(self, parent)
parent.addWidget(self)
self.label = qt.QLabel(label)
self.variable = qt.QLineEdit()
self._layout = qt.QHBoxLayout()
self._layout.setSpacing(5)
self._layout.addWidget(self.label)
self._layout.addWidget(self.variable, 1)
self.setLayout(self._layout)
def setFocus(self):
self.variable.setFocus()
def setText(self, text):
self.variable.setText(text)
def text(self):
return str(self.variable.text())
def unicode(self):
return unicode(self.variable.text())
class StringInput(OptionalStringInput):
def __init__(self, parent, label):
OptionalStringInput.__init__(self, parent, label)
def validate(self):
if self.text() == "":
qt.QMessageBox.critical(
None, "Error",
qcore.QString("Field '%1' empty").arg(self.label.text()))
return False
return True
OutputVariable = StringInput
InputVariable = StringInput
OptionalInputVariable = OptionalStringInput
class CheckBox(qt.QCheckBox):
def __init__(self, parent, label):
qt.QCheckBox.__init__(self, label, parent)
parent.addWidget(self)
def selection(self):
return self.isChecked()
class Choice(qt.QFrame):
def __init__(self, parent, label, vertical = 0):
qt.QFrame.__init__(self, parent)
parent.addWidget(self)
self.buttonBox = qt.QGroupBox(label, self)
if vertical:
self.buttonBox.layout = qt.QVBoxLayout(self.buttonBox)
else:
self.buttonBox.layout = qt.QHBoxLayout(self.buttonBox)
self.layout = qt.QHBoxLayout(self)
self.layout.addWidget(self.buttonBox)
self.layout.addStretch(5)
self.buttons = []
self.results = []
def addButton(self, label, result):
self.buttons.append(qt.QRadioButton(label))
self.buttonBox.layout.addWidget(self.buttons[-1])
self.results.append(result)
self.buttons[0].setChecked(True)
def addSpacing(self, spacing):
self.buttonBox.addSpace(spacing)
def selectButton(self, index):
if index >= 0 and index < len(self.buttons):
self.buttons[index].setChecked(True)
def selection(self):
for k in range(len(self.buttons)):
if self.buttons[k].isChecked():
return self.results[k]
return None # should never happen
class HChoice(Choice):
def __init__(self, parent, label):
Choice.__init__(self, parent, label, 0)
class VChoice(Choice):
def __init__(self, parent, label):
Choice.__init__(self, parent, label, 1)
class DialogGroup(qt.QFrame):
def __init__(self, parent, vertical = 0):
qt.QFrame.__init__(self, parent)
parent.addWidget(self)
if vertical:
self.layout = qt.QVBoxLayout(self)
self.defaultAlignment = qcore.Qt.AlignLeft
else:
self.layout = qt.QHBoxLayout(self)
self.defaultAlignment = qcore.Qt.AlignTop
self.widgets = []
def addWidget(self, widget, stretch = 0, alignment = None):
if alignment is None:
alignment = self.defaultAlignment
self.layout.addWidget(widget, stretch, alignment)
self.widgets.append(widget)
def addSpacing(self, spacing):
self.layout.addSpacing(spacing)
def addStretch(self, stretch):
self.layout.addStretch(stretch)
def addLabel(self, labelString):
label = qt.QLabel(labelString, self)
self.addWidget(label, 0, qcore.Qt.AlignLeft)
def validate(self):
for i in self.widgets:
try:
if i.validate() == 0:
return False
except AttributeError:
continue
return True
class HDialogGroup(DialogGroup):
def __init__(self, parent):
DialogGroup.__init__(self, parent, 0)
class VDialogGroup(DialogGroup):
def __init__(self, parent):
DialogGroup.__init__(self, parent, 1)
#class DialogStack(qt.QWidgetStack):
# def __init__(self, parent, widgetMapping = None):
# qt.QWidgetStack.__init__(self, parent)
# parent.addWidget(self)
# self.widgetMapping = widgetMapping
# self.size = 0
#
# def raiseWidget(self, index):
# if self.widgetMapping:
# qt.QWidgetStack.raiseWidget(self, self.widgetMapping[index])
# else:
# qt.QWidgetStack.raiseWidget(self, index)
#
# def addWidget(self, widget):
# qt.QWidgetStack.addWidget(self, widget, self.size)
# self.size = self.size + 1
#
# def validate(self):
# try:
# return self.visibleWidget().validate()
# except AttributeError:
# pass
class QuickDialog(qt.QDialog):
def __init__(self, parent, title):
qt.QDialog.__init__(self, parent)
self.layout = qt.QVBoxLayout(self)
self.layout.addStretch(5)
self.layout.addSpacing(20)
self.insertButtons()
self.widgets = []
self.setWindowTitle(title)
self.setOrientation(qcore.Qt.Vertical)
self.resize(500,-1)
def insertButtons(self):
self.buttons = qt.QFrame(self)
self.buttons.OK = qt.QPushButton("OK", self.buttons)
self.buttons.Cancel = qt.QPushButton("Cancel", self.buttons)
self.buttons.OK.setDefault(1)
self.connect(self.buttons.Cancel, SIGNAL("clicked()"), self.reject)
self.connect(self.buttons.OK, SIGNAL("clicked()"), self.tryAccept)
self.buttons.layout = qt.QHBoxLayout(self.buttons)
self.buttons.layout.addStretch(5)
self.buttons.layout.addWidget(self.buttons.OK)
self.buttons.layout.addWidget(self.buttons.Cancel)
self.layout.addWidget(self.buttons)
def addWidget(self, widget, stretch = 0, alignment = None):
if alignment is None:
alignment = qcore.Qt.AlignTop
self.layout.insertWidget(len(self.widgets), widget, stretch, alignment)
self.widgets.append(widget)
def addSpacing(self, spacing):
self.layout.insertSpacing(len(self.widgets), spacing)
self.widgets.append(None)
def addStretch(self, stretch):
self.layout.insertStretch(len(self.widgets), stretch)
self.widgets.append(None)
def addLabel(self, labelString):
label = qt.QLabel(labelString, self)
self.addWidget(label, 0, qcore.Qt.AlignLeft)
def setHelp(self, *functionSeq):
helpString = ""
functionList = list(*functionSeq)
while len(functionList) > 0:
function = functionList.pop()
if (len(functionList) == 0) and (function.__doc__):
helpString = helpString + function.__doc__
elif function.__doc__:
helpString = helpString + function.__doc__ + os.linesep + \
"--------------------------------------------------------"+\
"--------------------------------" + os.linesep
if not hasattr(self.buttons, "Help"):
self.buttons.Help = qt.QPushButton("Help", self.buttons)
self.buttons.Help.setToggleButton(1)
self.buttons.layout.insertWidget(3, self.buttons.Help)
self.connect(self.buttons.Help, SIGNAL("toggled(bool)"), self.showExtension)
if int(qt.qVersion()[0]) < 3:
self.help = qt.QMultiLineEdit(self)
self.help.setText(helpString)
if self.help.numLines() > 20:
self.help.setFixedVisibleLines(20)
else:
self.help.setFixedVisibleLines(self.help.numLines()+1)
self.help.setReadOnly(1)
self.help.setWordWrap(qt.QMultiLineEdit.WidgetWidth)
else:
self.help = qt.QVBox(self)
self.help.text = qcore.QtextEdit(self.help)
self.help.text.setText(helpString)
self.help.text.setReadOnly(1)
self.help.text.setWordWrap(qt.QMultiLineEdit.WidgetWidth)
total_height = self.help.text.heightForWidth(self.help.width())
if total_height > self.help.text.height():
self.help.text.setMinimumSize(self.help.text.width(), min(300, total_height))
self.setExtension(self.help)
def tryAccept(self):
for i in self.widgets:
try:
if i.validate() == 0:
return
except AttributeError:
continue
self.accept()
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