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110 lines
5.0 KiB
110 lines
5.0 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 more advance Drag and Drop pixmap usage; |
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# |
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# When the Drag and Drop operation is started, a TTkLabel widget is created |
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# but a new canvas is built to be used as pixmap. |
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# This approach increase the flexibility on the styling of the full drag and drop operation |
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class DragDrop(ttk.TTkFrame): |
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def mouseDragEvent(self, evt:ttk. TTkMouseEvent) -> bool: |
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# Create a new drag object, a new TTkLabel as DnD Data and |
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# a custom Pixmap drawn as a titled box of fixed sizes around |
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# a snippet of the label's text |
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label = ttk.TTkLabel(text="Lorem ipsum dolor sit amet,\nconsectetur adipiscing elit,\nsed do eiusmod tempor incididunt ut\nlabore et dolore magna aliqua.", size=(10,1)) |
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pixmap = ttk.TTkCanvas(width=17,height=5) |
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pixmap.drawText(pos=(0,0),text="╭───────────────╮") |
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pixmap.drawText(pos=(2,0),text=f"╼ {self.title()} ╾") # Here for simplicity I am writing the title over the top border |
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pixmap.drawText(pos=(0,1),text="│Lorem ipsum dol│") |
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pixmap.drawText(pos=(0,2),text="│consectetur adi│") |
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pixmap.drawText(pos=(0,3),text="│sed do eiusmod │") |
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pixmap.drawText(pos=(0,4),text="╰───────────────╯") |
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# The next condition is meant to show that you can |
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# handle also the Drag and Drop with the Right or Middle mouse buttons. |
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if evt.key == ttk. TTkMouseEvent.LeftButton: |
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pixmap.drawText(pos=(0,4),text="╰───────╼ Left ╾╯") |
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elif evt.key == ttk. TTkMouseEvent.RightButton: |
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pixmap.drawText(pos=(0,4),text="╰──────╼ Right ╾╯") |
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elif evt.key == ttk. TTkMouseEvent.MidButton: |
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pixmap.drawText(pos=(0,4),text="╰────╼ Eugenio ╾╯") |
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drag = ttk.TTkDrag() |
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drag.setData(label) |
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drag.setPixmap(pixmap) |
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ttk.TTkLog.debug(f"Drag ({self.title()}) -> 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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def dropEvent(self, evt:ttk.TTkDnDEvent) -> bool: |
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# Similar to the previous example |
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# I am retrieving the TTkLabel widget used as Drag'nDrop data |
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# and I am placing it inside the current Frame |
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# This time I am not removing the padding sizes from the |
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# position due to the frame I draw in the pixmap that |
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# already changed the offset of the text being aligned to the final |
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# dropped Label position. |
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# BTW, I am not a genious that can figure out all of this upfront, |
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# this is just the result of trial and errors |
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label:ttk.TTkLabel = evt.data() |
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self.layout().addWidget(label) |
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label.move(evt.x, evt.y) |
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ttk.TTkLog.debug(f"Drop ({self.title()}) <- pos={evt.x},{evt.y}") |
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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() |