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134 lines
5.9 KiB
134 lines
5.9 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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import json |
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import random |
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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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# Load the images from the ansi.images.json file |
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# Each entry is a compressed base64 encoded image as a multiline TTkString |
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imagesFile = os.path.join(os.path.dirname(os.path.abspath(__file__)),'../ansi.images.json') |
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with open(imagesFile) as f: |
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d = json.load(f) |
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# Image exported by the Dumb Paint Tool - Removing the extra '\n' at the end |
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diamond = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['diamond' ])[0:-1]) |
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fire = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['fire' ])[0:-1]) |
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key = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['key' ])[0:-1]) |
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peach = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['peach' ])[0:-1]) |
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pepper = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['pepper' ])[0:-1]) |
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python = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['python' ])[0:-1]) |
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ring = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['ring' ])[0:-1]) |
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sword = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['sword' ])[0:-1]) |
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whip = ttk.TTkString(ttk.TTkUtil.base64_deflate_2_obj(d['compressed']['whip' ])[0:-1]) |
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# Calculate the size of the image, this is a simple helper function. |
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# Since the images are simple ANSI strings, |
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# the size is calculated by counting the lines and the max width of the lines |
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def imageSize(img:ttk.TTkString) -> int: |
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lines = img.split('\n') |
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return ( |
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max(line.termWidth() for line in lines), |
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len(lines)) |
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# This example show a showcase of the Drag and Drop pixmap functionality; |
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# |
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# Anytime a Drag and Drop operation is started, a random image is selected and used as Pixmap. |
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# |
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# In order to display the images after the drop event, the pixmaps are stored in a list |
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# and the paintEvent routine is used to draw them on the canvas. |
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class DragDrop(ttk.TTkFrame): |
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def __init__(self, **kwargs): |
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# The list of pixmaps to be drawn in the paintEvent routine |
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self.pixmaps = [] |
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super().__init__(**kwargs) |
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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 |
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# a random image is chosen |
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imageString = random.choice([diamond,fire,key,peach,ring,sword,whip,pepper,python]) |
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# A canvas is created and the ANSI String is drawn on it line by line |
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w,h = imageSize(imageString) |
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pixmap = ttk.TTkCanvas(width=w, height=h+1) |
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pixmap.setTransparent(True) |
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pixmap.drawText(pos=(0,0), text=self.title()) |
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for y,line in enumerate(imageString.split('\n')): |
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pixmap.drawTTkString(pos=(0,y+1), text=line) |
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drag = ttk.TTkDrag() |
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drag.setData(pixmap) |
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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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# When a drop event is received, the pixmap is stored in the list |
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self.pixmaps.append((evt.x, evt.y, evt.data())) |
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ttk.TTkLog.debug(f"Drop ({self.title()}) <- pos={evt.x},{evt.y}") |
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self.update() |
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return True |
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def paintEvent(self, canvas:ttk.TTkCanvas) -> None: |
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_,_,w,h = self.geometry() |
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# Draw all the pixmaps on the canvas |
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for x,y,pixmap in self.pixmaps: |
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canvas.paintCanvas(pixmap, (x,y,w,h), (0,0,w,h), (0,0,w,h)) |
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# Call the base paintEvent to draw the frame on top of the pixmap |
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super().paintEvent(canvas) |
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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() |