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96 lines
3.9 KiB
96 lines
3.9 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 functionality; |
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# |
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# Each TTkWidget include 4 methods to handle the Drag and Drop events: |
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# - dragEnterEvent |
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# - dragLeaveEvent |
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# - dragMoveEvent |
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# - dropEvent |
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# Overriding any of those methods in a subclass will allow the widget to handle the DnD events |
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# |
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# To start a Drag and Drop operation, the TTkDrag object must be created and executed. |
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# The Drag and Drop operation is usually started after a mouseDragEvent as shown in |
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# this example, but it can be started after any other events/methods or signals. |
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class DragDrop(ttk.TTkFrame): |
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def mouseDragEvent(self, evt:ttk. TTkMouseEvent) -> bool: |
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if evt.key == ttk. TTkMouseEvent.LeftButton: |
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# Create a new drag object and set some text as DnD Data |
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drag = ttk.TTkDrag() |
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drag.setData(f"Test DnD ({self.title()})") |
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ttk.TTkLog.debug(f"Drag ({self.title()}) -> {drag.data()}, pos={evt.pos()}") |
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# Start the drag operation |
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drag.exec() |
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return True |
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def dragEnterEvent(self, evt:ttk.TTkDnDEvent) -> bool: |
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ttk.TTkLog.debug(f"Drag Enter ({self.title()}) - {evt.data()}, pos={evt.pos()}") |
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return True |
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def dragLeaveEvent(self, evt:ttk.TTkDnDEvent) -> bool: |
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ttk.TTkLog.debug(f"Drag Leave ({self.title()}) - {evt.data()}, pos={evt.pos()}") |
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return True |
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def dragMoveEvent(self, evt:ttk.TTkDnDEvent) -> bool: |
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ttk.TTkLog.debug(f"Drag Move ({self.title()}) - {evt.data()}, pos={evt.pos()}") |
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return True |
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def dropEvent(self, evt:ttk.TTkDnDEvent) -> bool: |
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ttk.TTkLog.debug(f"Drop ({self.title()}) <- {evt.data()}, pos={evt.pos()}") |
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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(DragDrop(title="DnD 1"),0,0,2,1) |
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root.layout().addWidget(DragDrop(title="DnD 2"),0,1,1,1) |
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root.layout().addWidget(DragDrop(title="DnD 3"),1,1,1,1) |
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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() |