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125 lines
5.6 KiB
125 lines
5.6 KiB
#!/usr/bin/env python3 |
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# MIT License |
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# |
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# Copyright (c) 2025 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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# Those 2 lines are required to use the TermTk library in the main folder |
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import sys, os |
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sys.path.append(os.path.join(sys.path[0],'../../..')) |
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import TermTk as ttk |
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# This example show the basic Drag and Drop pixmap usage; |
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# |
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# Anytime a Drag and Drop operation is started, a new TTkButton is created |
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# the hotSpot is set to define the offset from the mouse cursor |
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class DraggableFrame_FixedHotSpot(ttk.TTkFrame): |
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# I save the hotSpot in the constructor to be used during the dragging operation |
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def __init__(self, *, hotSpot ,**kwargs): |
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self.hotSpot = hotSpot |
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super().__init__(**kwargs) |
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self.layout().addWidget(ttk.TTkLabel(text="Drag Me...")) |
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def mouseDragEvent(self, evt:ttk. TTkMouseEvent) -> bool: |
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button = ttk.TTkButton(text=f"{self.title()}", border=True, size=self.size()) |
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drag = ttk.TTkDrag() |
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drag.setHotSpot(self.hotSpot) |
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drag.setData(button) |
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drag.setPixmap(button) |
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ttk.TTkLog.debug(f"Drag ({self.title()}) -> {button.text()}, pos={evt.x},{evt.y}") |
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# Start the drag operation |
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drag.exec() |
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return True |
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class DraggableFrame_RelativeHotSpot(ttk.TTkFrame): |
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def __init__(self, **kwargs): |
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super().__init__(**kwargs) |
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self.layout().addWidget(ttk.TTkLabel(text="Drag Me...")) |
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def mouseDragEvent(self, evt:ttk. TTkMouseEvent) -> bool: |
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button = ttk.TTkButton(text=f"HotSpot at\nMouse relative Pos\n\n-->{(evt.x, evt.y)}<--", border=True, size=self.size()) |
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drag = ttk.TTkDrag() |
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drag.setHotSpot((evt.x, evt.y)) |
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drag.setData(button) |
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drag.setPixmap(self) |
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ttk.TTkLog.debug(f"Drag ({self.title()}) -> {button.text()}, pos={evt.x},{evt.y}") |
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# Start the drag operation |
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drag.exec() |
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return True |
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class DropFrame(ttk.TTkFrame): |
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def dropEvent(self, evt:ttk.TTkDnDEvent) -> bool: |
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button:ttk.TTkButton = evt.data() |
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self.layout().addWidget(button) |
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# Since the frame by default has a padding of 1 |
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# I align the button to the mouse coordinates by subtracting the Top/Left padding size |
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t,b,l,r = self.getPadding() |
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hsx,hsy = evt.hotSpot() |
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button.move(evt.x-l-hsx, evt.y-t-hsy) |
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ttk.TTkLog.debug(f"Drop ({self.title()}) <- {button.text()}, pos={evt.x},{evt.y}") |
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# This is not required in this example |
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# |
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# But I just add a logging feedback to the button |
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# To show that the button has been clicked |
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# Note: I highly recommend to avoid using lambda as a slot |
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# The correct way is to have a method in the class, marked as pyTTkSlot, |
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# capable of handling the signal |
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button.clicked.connect(lambda: ttk.TTkLog.debug(f"Clicked: {button.text()}")) |
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return True |
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# Create the root application |
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# and set its layout to TTkGridLayout in order to |
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# place the widgets in the following way: |
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# |
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# Col 0 Col 1 |
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# +----------------+----------------+ |
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# Row 0 | DragDrop 1 | DragDrop 2 | |
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# + +----------------+ |
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# Row 1 | | DragDrop 3 | |
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# +----------------+----------------+ |
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# Row 2 | Log Viewer | |
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# +----------------+----------------+ |
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# |
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root = ttk.TTk() |
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root.setLayout(ttk.TTkGridLayout()) |
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# Add the DragDrop widgets to the root layout |
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root.layout().addWidget(df1 := DropFrame(title="DnD 1"),0,0,2,1) |
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root.layout().addWidget( DropFrame(title="DnD 2"),0,1,1,1) |
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root.layout().addWidget( DropFrame(title="DnD 3"),1,1,1,1) |
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df1.layout().addWidget(DraggableFrame_FixedHotSpot(pos=( 0, 0),size=(25,5),title="Fix HotSpot ( 0, 0)", hotSpot=( 0, 0))) |
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df1.layout().addWidget(DraggableFrame_FixedHotSpot(pos=( 0, 5),size=(25,5),title="Fix HotSpot ( 5, 0)", hotSpot=( 5, 0))) |
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df1.layout().addWidget(DraggableFrame_FixedHotSpot(pos=( 0,10),size=(25,5),title="Fix HotSpot ( 0, 3)", hotSpot=( 0, 3))) |
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df1.layout().addWidget(DraggableFrame_FixedHotSpot(pos=( 0,15),size=(25,5),title="Fix HotSpot ( 5, 3)", hotSpot=( 5, 3))) |
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df1.layout().addWidget(DraggableFrame_FixedHotSpot(pos=(25,10),size=(25,5),title="Fix HotSpot (-5,-3)", hotSpot=(-5,-3))) |
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df1.layout().addWidget(DraggableFrame_FixedHotSpot(pos=(25,15),size=(25,5),title="Fix HotSpot (10, 3)", hotSpot=(10, 3))) |
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df1.layout().addWidget(DraggableFrame_RelativeHotSpot(pos=(25,0),size=(25,10),title="Relative HotSpot")) |
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# Add a LogViewer at the bottom to display the log messages |
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# (Row 2, Col 0, RowSpan 1, ColSpan 2) |
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root.layout().addWidget(ttk.TTkLogViewer(follow=True),2,0,1,2) |
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root.mainloop() |