1 files changed, 127 insertions, 0 deletions
diff --git a/share/extensions/frame.py b/share/extensions/frame.py
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+++ b/share/extensions/frame.py
@@ -0,0 +1,127 @@
+#!/usr/bin/env python
+# coding=utf-8
+#
+# Copyright (C) 2016 Richard White, rwhite8282@gmail.com
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+"""
+An Inkscape extension that creates a frame around a selected object.
+"""
+
+import inkex
+from inkex import Group, PathElement, ClipPath
+
+def size_box(box, delta):
+    """ Returns a box with an altered size.
+    delta -- The amount the box should grow.
+    Returns a box with an altered size.
+    """
+    return (box.x.minimum - delta, box.x.maximum + delta,
+            box.y.minimum - delta, box.y.maximum + delta)
+
+
+# Frame maker Inkscape effect extension
+class Frame(inkex.EffectExtension):
+    """
+    An Inkscape extension that creates a frame around a selected object.
+    """
+    def add_arguments(self, pars):
+        # Parse the options.
+        pars.add_argument('--tab', default='object')
+        pars.add_argument('--clip', type=inkex.Boolean, default=False)
+        pars.add_argument('--corner_radius', type=int, default=0)
+        pars.add_argument('--fill_color', type=inkex.Color, default=inkex.Color(0))
+        pars.add_argument('--group', type=inkex.Boolean, default=False)
+        pars.add_argument('--position', default='outside')
+        pars.add_argument('--stroke_color', type=inkex.Color, default=inkex.Color(0))
+        pars.add_argument('--width', type=float, default=2.0)
+
+    def add_clip(self, node, clip_path):
+        """ Adds a new clip path node to the defs and sets
+                the clip-path on the node.
+            node -- The node that will be clipped.
+            clip_path -- The clip path object.
+        """
+        clip = ClipPath()
+        clip.append(PathElement(d=str(clip_path.path)))
+        clip_id = self.svg.get_unique_id('clipPath')
+        clip.set('id', clip_id)
+        self.svg.defs.append(clip)
+        node.set('clip-path', 'url(#{})'.format(str(clip_id)))
+
+    def add_frame(self, name, box, style, radius=0):
+        """
+            name -- The name of the new frame object.
+            box -- The boundary box of the node.
+            style -- The style used to draw the path.
+            radius -- The corner radius of the frame.
+            returns a new frame node.
+        """
+        r = min([radius, (abs(box[1] - box[0]) / 2), (abs(box[3] - box[2]) / 2)])
+        if radius > 0:
+            d = ' '.join(str(x) for x in
+                         ['M', box[0], (box[2] + r),
+                          'A', r, r, '0 0 1', (box[0] + r), box[2],
+                          'L', (box[1] - r), box[2],
+                          'A', r, r, '0 0 1', box[1], (box[2] + r),
+                          'L', box[1], (box[3] - r),
+                          'A', r, r, '0 0 1', (box[1] - r), box[3],
+                          'L', (box[0] + r), box[3],
+                          'A', r, r, '0 0 1', box[0], (box[3] - r),
+                          'Z'])
+        else:
+            d = ' '.join(str(x) for x in
+                         ['M', box[0], box[2],
+                          'L', box[1], box[2],
+                          'L', box[1], box[3],
+                          'L', box[0], box[3],
+                          'Z'])
+
+        elem = PathElement()
+        elem.style = style
+        elem.label = name
+        elem.path = d
+        return elem
+
+    def effect(self):
+        """Performs the effect."""
+        # Determine common properties.
+        width = self.options.width
+        style = inkex.Style({'stroke-width': width})
+        style.set_color(self.options.fill_color, 'fill')
+        style.set_color(self.options.stroke_color, 'stroke')
+        layer = self.svg.get_current_layer()
+
+        for node in self.svg.selected.values():
+            box = node.bounding_box()
+            if self.options.position == 'outside':
+                box = size_box(box, (width / 2))
+            else:
+                box = size_box(box, -(width / 2))
+
+            frame = self.add_frame("Frame", box, style, self.options.corner_radius)
+            if self.options.clip:
+                self.add_clip(node, frame)
+            if self.options.group:
+                group = layer.add(Group())
+                group.append(node)
+                group.append(frame)
+            else:
+                layer.append(frame)
+        return None
+
+if __name__ == '__main__':
+    Frame().run()