|
|
| from kivy.uix.widget import Widget |
| from kivy.properties import NumericProperty, ListProperty |
| from kivy.logger import Logger |
| from kivy.graphics import Line, Rectangle, Color |
|
|
| class GridWidget(Widget): |
| ''' |
| ''' |
| grid_unit = NumericProperty(11) |
| foreground = ListProperty([1,1,1,1]) |
| background = ListProperty([0,0,0,1]) |
|
|
| vlines = ListProperty([]) |
| hlines = ListProperty([]) |
| |
| def __init__(self, grid_unit=11, |
| foreground=None, |
| background=None, |
| **kwargs): |
| super().__init__(**kwargs) |
| self.grid_unit = grid_unit |
| self.foreground = foreground or self.foreground |
| self.background = background or self.background |
| self.bg = Color(self.background) |
| self.fg = Color(self.foreground) |
| self.canvas.before.add(self.bg) |
| self.canvas.add(self.fg) |
| self.bind(size=self._resize) |
| self.bind(grid_unit=self._resize) |
| self.bind(pos=self._move) |
| self.bind(foreground=self._foreground) |
| self.bind(background=self._background) |
|
|
| def _foreground(self, instance, value): |
|
|
| self.fg.rgba = self.foreground |
|
|
| def _background(self, instance, value): |
| |
| self.bg.rgba = self.background |
|
|
| def _resize(self, instance, value): |
| ''' |
| ''' |
|
|
| for l in self.vlines: |
| self.canvas.remove(l) |
| for l in self.hlines: |
| self.canvas.remove(l) |
|
|
| vdim = (self.width // self.grid_unit) + 1 |
| hdim = (self.height // self.grid_unit) + 1 |
| vsz = (1, self.height+1) |
| hsz = (self.width+1, 1) |
| |
| self.vlines = [Rectangle(size=vsz) for _ in range(int(vdim))] |
| self.hlines = [Rectangle(size=hsz) for _ in range(int(hdim))] |
|
|
| for l in self.vlines: |
| self.canvas.add(l) |
| for l in self.hlines: |
| self.canvas.add(l) |
|
|
| self._move(self, None) |
| |
|
|
|
|
| def _move(self, instance, value): |
| ''' |
| ''' |
|
|
| for i, l in enumerate(self.vlines): |
| l.pos = self.x + (self.grid_unit * i), self.y |
|
|
| for i, l in enumerate(self.hlines): |
| l.pos = self.x, self.y + (self.grid_unit * i) |
| |
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