Source code for TermTk.TTkWidgets.scrollarea

# 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:
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# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
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# 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
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

__all__ = ['TTkScrollArea']

from TermTk.TTkCore.constant import TTkK
from TermTk.TTkCore.signal import pyTTkSlot
from TermTk.TTkWidgets.widget import TTkWidget
from TermTk.TTkAbstract.abstractscrollarea import TTkAbstractScrollArea
from TermTk.TTkAbstract.abstractscrollview import TTkAbstractScrollView

class _TTkAreaWidget(TTkAbstractScrollView):
    __slots__ = ()
    def __init__(self, *args, **kwargs) -> None:
        TTkAbstractScrollView.__init__(self, *args, **kwargs)
        self.viewChanged.connect(self._viewChangedHandler)

    @pyTTkSlot()
    def _viewChangedHandler(self):
        x,y = self.getViewOffsets()
        self.layout().setOffset(-x,-y)

    def viewFullAreaSize(self) -> tuple[int,int]:
        _,_,w,h = self.layout().fullWidgetAreaGeometry()
        return w , h

    def maximumWidth(self):   return 0x10000
    def maximumHeight(self):  return 0x10000
    def minimumWidth(self):   return 0
    def minimumHeight(self):  return 0

[docs] class TTkScrollArea(TTkAbstractScrollArea): '''TTkScrollArea''' __slots__ = ('_areaView') def __init__(self, *, # TTkWidget init parent:TTkWidget=None, visible:bool=True, # TTkAbstractScrollArea init verticalScrollBarPolicy:TTkK.ScrollBarPolicy=TTkK.ScrollBarPolicy.ScrollBarAsNeeded, horizontalScrollBarPolicy:TTkK.ScrollBarPolicy=TTkK.ScrollBarPolicy.ScrollBarAsNeeded, **kwargs) -> None: self._areaView = _TTkAreaWidget(**kwargs) TTkAbstractScrollArea.__init__(self, parent=parent, visible=visible, verticalScrollBarPolicy=verticalScrollBarPolicy, horizontalScrollBarPolicy=horizontalScrollBarPolicy, **kwargs) self.setFocusPolicy(TTkK.ClickFocus) self.setViewport(self._areaView)