class LogViewer(QWidget):
""" The log (+stdout, +stderr) viewer widget """
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.__isEmpty = True
self.__copyAvailable = False
self.clearButton = None
self.messages = None
self.copyButton = None
self.selectAllButton = None
self.__createLayout(parent)
# create the context menu
self.__menu = QMenu(self)
self.__selectAllMenuItem = self.__menu.addAction(
PixmapCache().getIcon('selectall.png'), 'Select All',
self.messages.selectAll)
self.__copyMenuItem = self.__menu.addAction(
PixmapCache().getIcon('copytoclipboard.png'), 'Copy',
self.messages.copy)
self.__menu.addSeparator()
self.__clearMenuItem = self.__menu.addAction(
PixmapCache().getIcon('trash.png'), 'Clear', self.__clear)
self.messages.setContextMenuPolicy(Qt.CustomContextMenu)
self.messages.customContextMenuRequested.connect(
self.__handleShowContextMenu)
self.messages.copyAvailable.connect(self.__onCopyAvailable)
self.cNormalFormat = self.messages.currentCharFormat()
self.cErrorFormat = self.messages.currentCharFormat()
self.cErrorFormat.setForeground(QBrush(QColor(Qt.red)))
self.__updateToolbarButtons()
return
def __createLayout(self, parent):
" Helper to create the viewer layout "
# Messages list area
self.messages = QPlainTextEdit(parent)
self.messages.setLineWrapMode(QPlainTextEdit.NoWrap)
self.messages.setFont(QFont(GlobalData().skin.baseMonoFontFace))
self.messages.setReadOnly(True)
self.messages.setMaximumBlockCount(MAX_LINES)
# Default font size is good enough for most of the systems.
# 12.0 might be good only in case of the XServer on PC (Xming).
# self.messages.setFontPointSize( 12.0 )
# Buttons
self.selectAllButton = QAction(PixmapCache().getIcon('selectall.png'),
'Select all', self)
self.selectAllButton.triggered.connect(self.messages.selectAll)
self.copyButton = QAction(PixmapCache().getIcon('copytoclipboard.png'),
'Copy to clipboard', self)
self.copyButton.triggered.connect(self.messages.copy)
spacer = QWidget()
spacer.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
self.clearButton = QAction(PixmapCache().getIcon('trash.png'),
'Clear all', self)
self.clearButton.triggered.connect(self.__clear)
# Toolbar
self.toolbar = QToolBar()
self.toolbar.setOrientation(Qt.Vertical)
self.toolbar.setMovable(False)
self.toolbar.setAllowedAreas(Qt.LeftToolBarArea)
self.toolbar.setIconSize(QSize(16, 16))
self.toolbar.setFixedWidth(28)
self.toolbar.setContentsMargins(0, 0, 0, 0)
self.toolbar.addAction(self.selectAllButton)
self.toolbar.addAction(self.copyButton)
self.toolbar.addWidget(spacer)
self.toolbar.addAction(self.clearButton)
# layout
layout = QHBoxLayout()
layout.setContentsMargins(0, 0, 0, 0)
layout.setSpacing(0)
layout.addWidget(self.toolbar)
layout.addWidget(self.messages)
self.setLayout(layout)
return
def __handleShowContextMenu(self, coord):
""" Show the context menu """
self.__selectAllMenuItem.setEnabled(not self.__isEmpty)
self.__copyMenuItem.setEnabled(self.__copyAvailable)
self.__clearMenuItem.setEnabled(not self.__isEmpty)
self.__menu.popup(QCursor.pos())
return
def __appendText(self, txt, isError):
" Append the text "
if len(txt) == 0:
return
self.__isEmpty = False
cursor = self.messages.textCursor()
cursor.movePosition(QTextCursor.End)
self.messages.setTextCursor(cursor)
if isError:
self.messages.setCurrentCharFormat(self.cErrorFormat)
else:
self.messages.setCurrentCharFormat(self.cNormalFormat)
self.messages.insertPlainText(txt)
self.messages.insertPlainText('\n')
self.messages.ensureCursorVisible()
self.__updateToolbarButtons()
return
def appendMessage(self, txt):
" Append the regular message "
self.__appendText(txt, False)
#QApplication.processEvents()
return
def appendError(self, txt):
" Append the error message "
self.__appendText(txt, True)
#QApplication.processEvents()
return
def append(self, txt):
" Decides what the message is - error or not - and append it then "
if txt.startswith( 'CRITICAL' ) or \
txt.startswith( 'ERROR' ) or \
txt.startswith( 'WARNING' ):
self.appendError(txt)
else:
self.appendMessage(txt)
return
def __updateToolbarButtons(self):
" Contextually updates toolbar buttons "
self.selectAllButton.setEnabled(not self.__isEmpty)
self.copyButton.setEnabled(self.__copyAvailable)
self.clearButton.setEnabled(not self.__isEmpty)
return
def __clear(self):
" Triggers when the clear function is selected "
self.__isEmpty = True
self.__copyAvailable = False
self.messages.clear()
self.__updateToolbarButtons()
return
def __onCopyAvailable(self, isAvailable):
" Triggers on the copyAvailable signal "
self.__copyAvailable = isAvailable
self.__updateToolbarButtons()
return
def getText(self):
" Provides the content as a plain text "
return self.messages.toPlainText()
class LogViewer( QWidget ):
""" The log (+stdout, +stderr) viewer widget """
def __init__( self, parent = None ):
QWidget.__init__( self, parent )
self.__isEmpty = True
self.__copyAvailable = False
self.clearButton = None
self.messages = None
self.copyButton = None
self.selectAllButton = None
self.__createLayout( parent )
# create the context menu
self.__menu = QMenu( self )
self.__selectAllMenuItem = self.__menu.addAction(
PixmapCache().getIcon( 'selectall.png' ),
'Select All', self.messages.selectAll )
self.__copyMenuItem = self.__menu.addAction(
PixmapCache().getIcon( 'copytoclipboard.png' ),
'Copy', self.messages.copy )
self.__menu.addSeparator()
self.__clearMenuItem = self.__menu.addAction(
PixmapCache().getIcon( 'trash.png' ),
'Clear', self.__clear )
self.messages.setContextMenuPolicy( Qt.CustomContextMenu )
self.messages.customContextMenuRequested.connect(
self.__handleShowContextMenu )
self.messages.copyAvailable.connect( self.__onCopyAvailable )
self.cNormalFormat = self.messages.currentCharFormat()
self.cErrorFormat = self.messages.currentCharFormat()
self.cErrorFormat.setForeground( QBrush( QColor( Qt.red ) ) )
self.__updateToolbarButtons()
return
def __createLayout( self, parent ):
" Helper to create the viewer layout "
# Messages list area
self.messages = QPlainTextEdit( parent )
self.messages.setLineWrapMode( QPlainTextEdit.NoWrap )
self.messages.setFont( QFont( GlobalData().skin.baseMonoFontFace ) )
self.messages.setReadOnly( True )
self.messages.setMaximumBlockCount( MAX_LINES )
# Default font size is good enough for most of the systems.
# 12.0 might be good only in case of the XServer on PC (Xming).
# self.messages.setFontPointSize( 12.0 )
# Buttons
self.selectAllButton = QAction(
PixmapCache().getIcon( 'selectall.png' ),
'Select all', self )
self.selectAllButton.triggered.connect( self.messages.selectAll )
self.copyButton = QAction(
PixmapCache().getIcon( 'copytoclipboard.png' ),
'Copy to clipboard', self )
self.copyButton.triggered.connect( self.messages.copy )
spacer = QWidget()
spacer.setSizePolicy( QSizePolicy.Expanding, QSizePolicy.Expanding )
self.clearButton = QAction(
PixmapCache().getIcon( 'trash.png' ),
'Clear all', self )
self.clearButton.triggered.connect( self.__clear )
# Toolbar
self.toolbar = QToolBar()
self.toolbar.setOrientation( Qt.Vertical )
self.toolbar.setMovable( False )
self.toolbar.setAllowedAreas( Qt.LeftToolBarArea )
self.toolbar.setIconSize( QSize( 16, 16 ) )
self.toolbar.setFixedWidth( 28 )
self.toolbar.setContentsMargins( 0, 0, 0, 0 )
self.toolbar.addAction( self.selectAllButton )
self.toolbar.addAction( self.copyButton )
self.toolbar.addWidget( spacer )
self.toolbar.addAction( self.clearButton )
# layout
layout = QHBoxLayout()
layout.setContentsMargins( 0, 0, 0, 0 )
layout.setSpacing( 0 )
layout.addWidget( self.toolbar )
layout.addWidget( self.messages )
self.setLayout( layout )
return
def __handleShowContextMenu( self, coord ):
""" Show the context menu """
self.__selectAllMenuItem.setEnabled( not self.__isEmpty )
self.__copyMenuItem.setEnabled( self.__copyAvailable )
self.__clearMenuItem.setEnabled( not self.__isEmpty )
self.__menu.popup( QCursor.pos() )
return
def __appendText( self, txt, isError ):
" Append the text "
if len( txt ) == 0:
return
self.__isEmpty = False
cursor = self.messages.textCursor()
cursor.movePosition( QTextCursor.End )
self.messages.setTextCursor( cursor )
if isError:
self.messages.setCurrentCharFormat( self.cErrorFormat )
else:
self.messages.setCurrentCharFormat( self.cNormalFormat )
self.messages.insertPlainText( txt )
self.messages.insertPlainText( '\n' )
self.messages.ensureCursorVisible()
self.__updateToolbarButtons()
return
def appendMessage( self, txt ):
" Append the regular message "
self.__appendText( txt, False )
#QApplication.processEvents()
return
def appendError( self, txt ):
" Append the error message "
self.__appendText( txt, True )
#QApplication.processEvents()
return
def append( self, txt ):
" Decides what the message is - error or not - and append it then "
if txt.startswith( 'CRITICAL' ) or \
txt.startswith( 'ERROR' ) or \
txt.startswith( 'WARNING' ):
self.appendError( txt )
else:
self.appendMessage( txt )
return
def __updateToolbarButtons( self ):
" Contextually updates toolbar buttons "
self.selectAllButton.setEnabled( not self.__isEmpty )
self.copyButton.setEnabled( self.__copyAvailable )
self.clearButton.setEnabled( not self.__isEmpty )
return
def __clear( self ):
" Triggers when the clear function is selected "
self.__isEmpty = True
self.__copyAvailable = False
self.messages.clear()
self.__updateToolbarButtons()
return
def __onCopyAvailable( self, isAvailable ):
" Triggers on the copyAvailable signal "
self.__copyAvailable = isAvailable
self.__updateToolbarButtons()
return
def getText( self ):
" Provides the content as a plain text "
return self.messages.toPlainText()
