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53 lines
1.5 KiB
53 lines
1.5 KiB
""" |
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Similar to the opengl_widget module, this module defines |
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helper functions for the point_list_widget. It is named |
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the same for convenience. The actual point_list_widget |
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is defined in the clusterview_ui.py file. |
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""" |
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from clusterview2.point_manager import PointManager |
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def _string_point_to_point(str_point): |
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""" |
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In the QListWidget points are stored as strings |
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because of the way Qt has list items defined. |
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@param str_point The string of the form (x, y) to convert. |
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""" |
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# 1. Split |
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elems = str_point.split(",") |
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# 2. Take elements "(x" and "y)" and remove their first and |
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# last characters, respectively. Note that for y this |
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# function expects there to be a space after the comma. |
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x = elems[0][1:] |
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y = elems[1][1:-1] |
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return (int(x), int(y)) |
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def item_click_handler(ctx, item): |
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""" |
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Handles an item becoming clicked in the list. |
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This function is designed to be partially applied with the |
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main_window context in order to be able to trigger an opengl_widget |
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refresh. |
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@param ctx The context. |
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@param item The clicked item. |
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""" |
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point = _string_point_to_point(item.text()) |
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# TODO: Super slow linear search, should write a find_point function |
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# on the point_set in order to speed this up since PointSet |
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# is backed by a set anyway. |
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for p in PointManager.point_set.points: |
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if p.x == point[0] and p.y == point[1]: |
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p.select() |
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else: |
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p.unselect() |
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ctx.opengl_widget.update()
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