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#!/usr/bin/env python3
# MIT License
#
# Copyright (c) 2021 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com>
#
# 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 os
from TermTk.TTkCore.constant import TTkK
from TermTk.TTkCore.log import TTkLog
from TermTk.TTkCore.color import TTkColor
from TermTk.TTkCore.signal import pyTTkSlot
from TermTk.TTkAbstract.abstractscrollarea import TTkAbstractScrollArea
from TermTk.TTkAbstract.abstractscrollview import TTkAbstractScrollView
class _TTkLogViewer(TTkAbstractScrollView):
__slots__ = ('_color', '_text', '_messages', '_cwd', '_follow')
def __init__(self, *args, **kwargs):
TTkAbstractScrollView.__init__(self, *args, **kwargs)
self._name = kwargs.get('name' , '_TTkLogViewer' )
self._messages = [""]
self._cwd = os.getcwd()
self._follow = kwargs.get('follow' , False )
TTkLog.installMessageHandler(self.loggingCallback)
self.viewChanged.connect(self._viewChangedHandler)
@pyTTkSlot()
def _viewChangedHandler(self):
self.update()
def viewFullAreaSize(self) -> (int, int):
w = max( len(m) for m in self._messages)
h = len(self._messages)
return w , h
def viewDisplayedSize(self) -> (int, int):
return self.size()
def loggingCallback(self, mode, context, message):
logType = "NONE"
if mode == TTkLog.InfoMsg: logType = "INFO "
elif mode == TTkLog.DebugMsg: logType = "DEBUG"
elif mode == TTkLog.ErrorMsg: logType = "ERROR"
elif mode == TTkLog.FatalMsg: logType = "FATAL"
elif mode == TTkLog.WarningMsg: logType = "WARNING "
elif mode == TTkLog.CriticalMsg: logType = "CRITICAL"
self._messages.append(f"{logType}: {context.file}:{context.line} {message}".replace(self._cwd,"_"))
offx, offy = self.getViewOffsets()
_,h = self.size()
if self._follow or offy == len(self._messages)-h-1:
offy = len(self._messages)-h
self.viewMoveTo(offx, offy)
self.viewChanged.emit()
self.update()
def paintEvent(self):
ox,oy = self.getViewOffsets()
_,h = self.size()
for y, message in enumerate(self._messages[oy:]):
self._canvas.drawText(pos=(0,y),text=message[ox:])
c = TTkColor.RST
if message.startswith("INFO ") : c = TTkColor.fg("#00ff00")
elif message.startswith("DEBUG") : c = TTkColor.fg("#00ffff")
elif message.startswith("ERROR") : c = TTkColor.fg("#ff0000")
elif message.startswith("FATAL") : c = TTkColor.fg("#ff0000")
self._canvas.drawText(pos=(-ox,y),text=message[:5], color=c)
class TTkLogViewer(TTkAbstractScrollArea):
__slots__ = ('_logView')
def __init__(self, *args, **kwargs):
TTkAbstractScrollArea.__init__(self, *args, **kwargs)
self._name = kwargs.get('name' , 'TTkLogViewer' )
if 'parent' in kwargs: kwargs.pop('parent')
self._logView = _TTkLogViewer(*args, **kwargs)
self.setFocusPolicy(TTkK.ClickFocus)
self.setViewport(self._logView)