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  • Committer: Mateusz Korniak
  • Date: 2007-09-02 15:42:18 UTC
  • mto: This revision was merged to the branch mainline in revision 274.
  • Revision ID: matkor@laptop-hp-20070902154218-nba0woaqjsn20f9n
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viz/graphcell.py
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#!/usr/bin/python
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# -*- coding: UTF-8 -*-
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"""Cell renderer for directed graph.
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            metrics = pango_ctx.get_metrics(font_desc)
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            ascent = pango.PIXELS(metrics.get_ascent())
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            descent = pango.PIXELS(metrics.get_ascent())
 
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            descent = pango.PIXELS(metrics.get_descent())
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            self._box_size = ascent + descent
 
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            self._box_size = ascent + descent + 6
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            return self._box_size
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    def set_colour(self, ctx, colour, bg, fg):
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        to be, we let the TreeViewColumn take care of making them all
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        line up.
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        """
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        box_size = self.box_size(widget)
 
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        box_size = self.box_size(widget) + 1
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        cols = self.node[0]
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        for start, end, colour in self.in_lines + self.out_lines:
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        ctx.rectangle(bg_area.x, bg_area.y, bg_area.width, bg_area.height)
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        ctx.clip()
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        ctx.set_line_width(2)
 
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        box_size = self.box_size(widget)
 
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        ctx.set_line_width(box_size / 8)
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        ctx.set_line_cap(cairo.LINE_CAP_SQUARE)
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        box_size = self.box_size(widget)
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        # Draw lines into the cell
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        for start, end, colour in self.in_lines:
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            ctx.move_to(cell_area.x + box_size * start + box_size / 2,
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        (column, colour) = self.node
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        ctx.arc(cell_area.x + box_size * column + box_size / 2,
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                cell_area.y + cell_area.height / 2,
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                box_size / 5, 0, 2 * math.pi)
 
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                box_size / 4, 0, 2 * math.pi)
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        self.set_colour(ctx, colour, 0.0, 0.5)
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        ctx.stroke_preserve()