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87 lines
3.3 KiB
87 lines
3.3 KiB
# MIT License |
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# |
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# Copyright (c) 2021 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com> |
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# |
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# Permission is hereby granted, free of charge, to any person obtaining a copy |
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# of this software and associated documentation files (the "Software"), to deal |
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# in the Software without restriction, including without limitation the rights |
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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# copies of the Software, and to permit persons to whom the Software is |
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# furnished to do so, subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be included in all |
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# copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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# SOFTWARE. |
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__all__ = ['TTkResizableFrame'] |
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from TermTk.TTkCore.constant import TTkK |
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from TermTk.TTkWidgets.frame import TTkFrame |
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class TTkResizableFrame(TTkFrame): |
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'''TTkResizableFrame''' |
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__slots__ = ('_mouseDelta', '_resizable') |
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def __init__(self, *args, **kwargs): |
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TTkFrame.__init__(self, *args, **kwargs) |
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self.setBorder(True) |
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self._mouseDelta = (0,0) |
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self._resizable = TTkK.NONE |
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self.setFocusPolicy(TTkK.ClickFocus) |
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def mousePressEvent(self, evt): |
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self._resizable = TTkK.NONE |
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self._mouseDelta = (evt.x, evt.y) |
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w,h = self.size() |
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x,y = evt.x, evt.y |
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# check if the ckick is on any norder to enable the resize feature |
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if x==0: |
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self._resizable |= TTkK.LEFT |
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elif x==w-1: |
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self._resizable |= TTkK.RIGHT |
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if y==0: |
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self._resizable |= TTkK.TOP |
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elif y==h-1: |
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self._resizable |= TTkK.BOTTOM |
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# TTkLog.debug(f"{(x,y)} - {self._resizable}") |
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#return self._resizable != TTkK.NONE |
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return True |
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def mouseDragEvent(self, evt): |
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if self._resizable: |
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# TTkLog.debug(f"{self._resizable}") |
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x,y,w,h = self.geometry() |
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maxw, maxh = self.maximumSize() |
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minw, minh = self.minimumSize() |
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dx = evt.x-self._mouseDelta[0] |
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dy = evt.y-self._mouseDelta[1] |
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if self._resizable & TTkK.LEFT: |
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tmpw = w-dx |
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if minw > tmpw: tmpw=minw; dx= w-tmpw |
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elif maxw < tmpw: tmpw=maxw; dx= w-tmpw |
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x += dx ; w = tmpw |
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elif self._resizable & TTkK.RIGHT: |
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if minw > evt.x: w = minw |
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elif maxw < evt.x: w = maxw |
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else: w = evt.x+1 |
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if self._resizable & TTkK.TOP: |
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tmph = h-dy |
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if minh > tmph: tmph=minh; dy= h-tmph |
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elif maxh < tmph: tmph=maxh; dy= h-tmph |
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y += dy ; h = tmph |
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elif self._resizable & TTkK.BOTTOM: |
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if minh > evt.y: h = minh |
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elif maxh < evt.y: h = maxh |
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else: h = evt.y+1 |
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self.move(x,y) |
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self.resize(w,h) |
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return True |
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return False
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