class XFilepathEdit(QWidget):
"""
The XFilepathEdit class provides a common interface to prompt the user to
select a filepath from the filesystem. It can be configured to load
directories, point to a save file path location, or to an open file path
location. It can also be setup to color changed based on the validity
of the existance of the filepath.
== Example ==
|>>> from projexui.widgets.xfilepathedit import XFilepathEdit
|>>> import projexui
|
|>>> # create the edit
|>>> edit = projexui.testWidget(XFilepathEdit)
|
|>>> # set the filepath
|>>> edit.setFilepath('/path/to/file')
|
|>>> # prompt the user to select the filepath
|>>> edit.pickFilepath()
|
|>>> # enable the coloring validation
|>>> edit.setValidated(True)
"""
__designer_icon__ = projexui.resources.find('img/file.png')
Mode = enum('OpenFile', 'SaveFile', 'Path', 'OpenFiles')
filepathChanged = Signal(str)
def __init__( self, parent = None ):
super(XFilepathEdit, self).__init__( parent )
# define custom properties
self._validated = False
self._validForeground = QColor(0, 120, 0)
self._validBackground = QColor(0, 120, 0, 100)
self._invalidForeground = QColor(255, 0, 0)
self._invalidBackground = QColor(255, 0, 0, 100)
self._normalizePath = False
self._filepathMode = XFilepathEdit.Mode.OpenFile
self._filepathEdit = XLineEdit(self)
self._filepathButton = QToolButton(self)
self._filepathTypes = 'All Files (*.*)'
# set default properties
ico = projexui.resources.find('img/folder.png')
self._filepathEdit.setReadOnly(False)
self._filepathEdit.setSizePolicy(QSizePolicy.Expanding,
QSizePolicy.Expanding)
self._filepathButton.setText('...')
self._filepathButton.setFixedSize(25, 23)
self._filepathButton.setAutoRaise(True)
self._filepathButton.setIcon(QIcon(ico))
self._filepathEdit.setContextMenuPolicy(Qt.CustomContextMenu)
self.setWindowTitle('Load File')
self.setAcceptDrops(True)
# define the layout
layout = QHBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
layout.addWidget(self._filepathEdit)
layout.addWidget(self._filepathButton)
self.setLayout(layout)
# create connections
self._filepathEdit.installEventFilter(self)
self._filepathButton.clicked.connect( self.pickFilepath )
self._filepathEdit.textChanged.connect( self.emitFilepathChanged )
self._filepathEdit.textChanged.connect( self.validateFilepath )
self._filepathEdit.customContextMenuRequested.connect( self.showMenu )
def autoRaise( self ):
"""
Returns whether or not the tool button will auto raise.
:return <bool>
"""
return self._filepathButton.autoRaise()
@Slot()
def clearFilepath( self ):
"""
Clears the filepath contents for this path.
"""
self.setFilepath('')
@Slot()
def copyFilepath( self ):
"""
Copies the current filepath contents to the current clipboard.
"""
clipboard = QApplication.instance().clipboard()
clipboard.setText(self.filepath())
clipboard.setText(self.filepath(), clipboard.Selection)
def dragEnterEvent( self, event ):
"""
Processes drag enter events.
:param event | <QDragEvent>
"""
if ( event.mimeData().hasUrls() ):
event.acceptProposedAction()
def dragMoveEvent( self, event ):
"""
Processes drag move events.
:param event | <QDragEvent>
"""
if ( event.mimeData().hasUrls() ):
event.acceptProposedAction()
def dropEvent( self, event ):
"""
Processes drop event.
:param event | <QDropEvent>
"""
if event.mimeData().hasUrls():
url = event.mimeData().urls()[0]
filepath = url.toLocalFile()
if filepath:
self.setFilepath(filepath)
def emitFilepathChanged( self ):
"""
Emits the filepathChanged signal for this widget if the signals are \
not being blocked.
"""
if ( not self.signalsBlocked() ):
self.filepathChanged.emit(self.filepath())
def eventFilter( self, object, event ):
"""
Overloads the eventFilter to look for click events on the line edit.
:param object | <QObject>
event | <QEvent>
"""
if ( object == self._filepathEdit and \
self._filepathEdit.isReadOnly() and \
event.type() == event.MouseButtonPress and \
event.button() == Qt.LeftButton ):
self.pickFilepath()
return False
def filepath( self, validated = False ):
"""
Returns the filepath for this widget. If the validated flag is set \
then this method will only return if the file or folder actually \
exists for this path. In the case of a SaveFile, only the base folder \
needs to exist on the system, in other modes the actual filepath must \
exist. If not validated, the text will return whatever is currently \
entered.
:return <str>
"""
paths = self.filepaths()
if not paths:
return ''
if not validated or self.isValid():
return paths[0]
return ''
def filepaths(self):
"""
Returns a list of the filepaths for this edit.
:return [<str>, ..]
"""
return nativestring(self._filepathEdit.text()).split(os.path.pathsep)
def filepathMode( self ):
"""
Returns the filepath mode for this widget.
:return <XFilepathEdit.Mode>
"""
return self._filepathMode
def filepathModeText( self ):
"""
Returns the text representation for this filepath mode.
:return <str>
"""
return XFilepathEdit.Mode[self._filepathMode]
def filepathTypes( self ):
"""
Returns the filepath types that will be used for this widget.
:return <str>
"""
return self._filepathTypes
def hint( self ):
"""
Returns the hint for this filepath.
:return <str>
"""
return self._filepathEdit.hint()
def icon( self ):
"""
Returns the icon that is used for this filepath widget.
:return <QIcon>
"""
return self._filepathButton.icon()
def invalidBackground( self ):
"""
Returns the invalid background color for this widget.
:return <QColor>
"""
return self._invalidBackground
def invalidForeground( self ):
"""
Returns the invalid foreground color for this widget.
:return <QColor>
"""
return self._invalidForeground
def isValid( self ):
"""
Returns whether or not the filepath exists on the system. \
In the case of a SaveFile, only the base folder \
needs to exist on the system, in other modes the actual filepath must \
exist.
:return <bool>
"""
check = nativestring(self._filepathEdit.text()).split(os.path.pathsep)[0]
if ( self.filepathMode() == XFilepathEdit.Mode.SaveFile ):
check = os.path.dirname(check)
return os.path.exists(check)
def isValidated( self ):
"""
Set whether or not to validate the filepath as the user is working \
with it.
:return <bool>
"""
return self._validated
def isReadOnly( self ):
"""
Returns if the widget is read only for text editing or not.
:return <bool>
"""
return self._filepathEdit.isReadOnly()
def normalizePath(self):
"""
Returns whether or not the path should be normalized for the current
operating system. When off, it will be defaulted to forward slashes
(/).
:return <bool>
"""
return self._normalizePath
def pickFilepath( self ):
"""
Prompts the user to select a filepath from the system based on the \
current filepath mode.
"""
mode = self.filepathMode()
filepath = ''
filepaths = []
curr_dir = nativestring(self._filepathEdit.text())
if ( not curr_dir ):
curr_dir = QDir.currentPath()
if mode == XFilepathEdit.Mode.SaveFile:
filepath = QFileDialog.getSaveFileName( self,
self.windowTitle(),
curr_dir,
self.filepathTypes() )
elif mode == XFilepathEdit.Mode.OpenFile:
filepath = QFileDialog.getOpenFileName( self,
self.windowTitle(),
curr_dir,
self.filepathTypes() )
elif mode == XFilepathEdit.Mode.OpenFiles:
filepaths = QFileDialog.getOpenFileNames( self,
self.windowTitle(),
curr_dir,
self.filepathTypes() )
else:
filepath = QFileDialog.getExistingDirectory( self,
self.windowTitle(),
curr_dir )
if filepath:
if type(filepath) == tuple:
filepath = filepath[0]
self.setFilepath(nativestring(filepath))
elif filepaths:
self.setFilepaths(map(str, filepaths))
def setAutoRaise( self, state ):
"""
Sets whether or not the tool button will auto raise.
:param state | <bool>
"""
self._filepathButton.setAutoRaise(state)
@Slot(int)
def setFilepathMode( self, mode ):
"""
Sets the filepath mode for this widget to the inputed mode.
:param mode | <XFilepathEdit.Mode>
"""
self._filepathMode = mode
@Slot(str)
def setFilepathModeText( self, text ):
"""
Sets the filepath mode for this widget based on the inputed text.
:param text | <str>
:return <bool> | success
"""
try:
self.setFilepathMode(XFilepathEdit.Mode[nativestring(text)])
return True
except KeyError:
return False
@Slot(str)
def setFilepathTypes( self, filepathTypes ):
"""
Sets the filepath type string that will be used when looking up \
filepaths.
:param filepathTypes | <str>
"""
self._filepathTypes = filepathTypes
@Slot(str)
def setFilepath(self, filepath):
"""
Sets the filepath text for this widget to the inputed path.
:param filepath | <str>
"""
if not filepath:
self._filepathEdit.setText('')
return
if self.normalizePath():
filepath = os.path.normpath(nativestring(filepath))
else:
filepath = os.path.normpath(nativestring(filepath)).replace('\\', '/')
self._filepathEdit.setText(filepath)
def setFilepaths(self, filepaths):
"""
Sets the list of the filepaths for this widget to the inputed paths.
:param filepaths | [<str>, ..]
"""
self.setFilepath(os.path.pathsep.join(filepaths))
def setHint(self, hint):
"""
Sets the hint for this filepath.
:param hint | <str>
"""
if self.normalizePath():
filepath = os.path.normpath(nativestring(hint))
else:
filepath = os.path.normpath(nativestring(hint)).replace('\\', '/')
self._filepathEdit.setHint(hint)
def setIcon( self, icon ):
"""
Sets the icon that will be used for this widget's tool button.
:param icon | <QIcon> || <str>
"""
self._filepathButton.setIcon(QIcon(icon))
def setInvalidBackground( self, bg ):
"""
Sets the invalid background color for this widget to the inputed widget.
:param bg | <QColor>
"""
self._invalidBackground = QColor(bg)
def setInvalidForeground( self, fg ):
"""
Sets the invalid foreground color for this widget to the inputed widget.
:param fg | <QColor>
"""
self._invalidForeground = QColor(fg)
def setNormalizePath(self, state):
"""
Sets whether or not the path should be normalized for the current
operating system. When off, it will be defaulted to forward slashes
(/).
:param state | <bool>
"""
self._normalizePath = state
@Slot(bool)
def setReadOnly( self, state ):
"""
Sets whether or not this filepath widget is readonly in the text edit.
:param state | <bool>
"""
self._filepathEdit.setReadOnly(state)
@Slot(bool)
def setValidated( self, state ):
"""
Set whether or not to validate the path as the user edits it.
:param state | <bool>
"""
self._validated = state
palette = self.palette()
# reset the palette to default, revalidate
self._filepathEdit.setPalette(palette)
self.validate()
def setValidBackground( self, bg ):
"""
Sets the valid background color for this widget to the inputed color.
:param bg | <QColor>
"""
self._validBackground = QColor(bg)
def setValidForeground( self, fg ):
"""
Sets the valid foreground color for this widget to the inputed color.
:param fg | <QColor>
"""
self._validForeground = QColor(fg)
def showMenu( self, pos ):
"""
Popups a menu for this widget.
"""
menu = QMenu(self)
menu.setAttribute(Qt.WA_DeleteOnClose)
menu.addAction('Clear').triggered.connect(self.clearFilepath)
menu.addSeparator()
menu.addAction('Copy Filepath').triggered.connect(self.copyFilepath)
menu.exec_(self.mapToGlobal(pos))
def validBackground( self ):
"""
Returns the valid background color for this widget.
:return <QColor>
"""
return self._validBackground
def validForeground( self ):
"""
Returns the valid foreground color for this widget.
:return <QColor>
"""
return self._validForeground
def validateFilepath( self ):
"""
Alters the color scheme based on the validation settings.
"""
if ( not self.isValidated() ):
return
valid = self.isValid()
if ( not valid ):
fg = self.invalidForeground()
bg = self.invalidBackground()
else:
fg = self.validForeground()
bg = self.validBackground()
palette = self.palette()
palette.setColor(palette.Base, bg)
palette.setColor(palette.Text, fg)
self._filepathEdit.setPalette(palette)
# map Qt properties
x_autoRaise = Property(bool, autoRaise, setAutoRaise)
x_filepathTypes = Property(str, filepathTypes, setFilepathTypes)
x_filepath = Property(str, filepath, setFilepath)
x_readOnly = Property(bool, isReadOnly, setReadOnly)
x_validated = Property(bool, isValidated, setValidated)
x_hint = Property(str, hint, setHint)
x_icon = Property('QIcon', icon, setIcon)
x_normalizePath = Property(bool, normalizePath, setNormalizePath)
x_invalidForeground = Property('QColor',
invalidForeground,
setInvalidForeground)
x_invalidBackground = Property('QColor',
invalidBackground,
setInvalidBackground)
x_validForeground = Property('QColor',
validForeground,
setValidForeground)
x_validBackground = Property('QColor',
validBackground,
setValidBackground)
x_filepathModeText = Property(str,
filepathModeText,
setFilepathModeText)