/b-gtk/fix-viz

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Viewing changes to branchview/graphcell.py

Merged Ali's fancy tags branch.

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branchview/graphcell.py
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                          "revision node instruction",
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                          gobject.PARAM_WRITABLE
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                        ),
 
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        "tags":         ( gobject.TYPE_PYOBJECT, "tags",
 
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                          "list of tags associated with the node",
 
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                          gobject.PARAM_WRITABLE
 
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                        ),
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        "in-lines":     ( gobject.TYPE_PYOBJECT, "in-lines",
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                          "instructions to draw lines into the cell",
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                          gobject.PARAM_WRITABLE
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        """Set properties from GObject properties."""
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        if property.name == "node":
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            self.node = value
 
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        elif property.name == "tags":
 
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            self.tags = value
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        elif property.name == "in-lines":
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            self.in_lines = value
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        elif property.name == "out-lines":
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        self.set_colour(ctx, colour, 0.5, 1.0)
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        ctx.fill()
 
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        self.render_tags(ctx, widget.create_pango_context(), cell_area, box_size)
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    def render_line (self, ctx, cell_area, box_size, mid, height, start, end, colour):
 
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    def render_line(self, ctx, cell_area, box_size, mid, height, start, end, colour):
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        if start is None:
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            x = cell_area.x + box_size * end + box_size / 2
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            ctx.move_to(x, mid + height / 3)
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        self.set_colour(ctx, colour, 0.0, 0.65)
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        ctx.stroke()
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b'\\ No newline at end of file'
 
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    def render_tags(self, ctx, pango_ctx, cell_area, box_size):
 
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        # colour ID used in self.set_colour on the tags
 
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        TAG_COLOUR_ID = 1
 
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        (column, colour) = self.node
 
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        font_desc = pango.FontDescription()
 
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        font_desc.set_size(pango.SCALE * 7)
 
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        tag_layout = pango.Layout(pango_ctx)
 
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        tag_layout.set_font_description(font_desc)
 
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        # The width of the tag label stack
 
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        width = 0
 
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        for tag_idx, tag in enumerate(self.tags):
 
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            tag_layout.set_text(" " + tag + " ")
 
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            text_width, text_height = tag_layout.get_pixel_size()
 
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            x0 = cell_area.x + \
 
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                 box_size * (column + 1.3) + width
 
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            y0 = cell_area.y + \
 
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                 cell_area.height / 2 - \
 
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                 text_height / 2
 
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            width += text_width + 5
 
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            # Draw the tag border
 
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            ctx.move_to(x0 - box_size / 3, y0 + text_height / 2)
 
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            ctx.line_to(x0, y0)
 
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            ctx.line_to(x0 + text_width, y0)
 
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            ctx.line_to(x0 + text_width, y0 + text_height)
 
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            ctx.line_to(x0, y0 + text_height)
 
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            ctx.line_to(x0 - box_size / 3, y0 + text_height / 2)
 
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            ctx.new_sub_path()
 
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            ctx.arc(x0 - box_size / 12,
 
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                        y0 + text_height / 2,
 
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                        box_size / 7,
 
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                        0, 2 * math.pi);
 
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            self.set_colour(ctx, TAG_COLOUR_ID, 0.0, 0.5)
 
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            ctx.stroke_preserve()
 
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            ctx.set_fill_rule (cairo.FILL_RULE_EVEN_ODD)
 
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            self.set_colour(ctx, TAG_COLOUR_ID, 0.5, 1.0)
 
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            ctx.fill()
 
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            # Draw the tag text
 
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            self.set_colour(ctx, 0, 0.0, 0.0)
 
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            ctx.move_to(x0, y0)
 
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            ctx.show_layout(tag_layout)
 
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