[dia] PyDia: select_by.py for size range given by selection

[Hans Breuer <hans src gnome org>]

commit 48d729f51db7335ed8dff472d72b7cff394b5859
Author: Hans Breuer <hans breuer org>
Date:   Sun Jun 30 17:30:46 2013 +0200

    PyDia: select_by.py for size range given by selection
    
    From the diagrams selection derive the minimum and maximum object size.
    Select every other object within this range.

 plug-ins/python/select_by.py |   32 +++++++++++++++++++++++++++++++-
 1 files changed, 31 insertions(+), 1 deletions(-)
---
diff --git a/plug-ins/python/select_by.py b/plug-ins/python/select_by.py
index bb22269..632eb49 100644
--- a/plug-ins/python/select_by.py
+++ b/plug-ins/python/select_by.py
@@ -1,11 +1,12 @@
 #    Select Objects By Common Properties
-#    Copyright (c) 2003, Hans Breuer <hans breuer org>
+#    Copyright (c) 2003, 2013 Hans Breuer <hans breuer org>
 #
 #        different methods (menu entries) to select all objects with given
 #    property, that is :
 #      - a find dialog to select by name
 #      - menu entries for different color types. The common color is read
 #        from already selected objects
+#      - a size range given by the current selection
 
 #    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
@@ -113,6 +114,32 @@ def select_by_line_color_cb (data, flags) :
 def select_by_text_color_cb (data, flags) :
        select_by_selected (data, "text_colour")
 
+def select_by_size_cb (data, flags) :
+       """ From the diagrams selection derive the minimum and maximum object size.
+           Select every other object within this range.
+       """
+       d = dia.active_display().diagram
+       grp = data.get_sorted_selected()
+       smin = 100000
+       smax = 0
+       for o in grp :
+               w = o.bounding_box.right - o.bounding_box.left
+               h = o.bounding_box.bottom - o.bounding_box.top
+               s = w * h
+               if s > smax :
+                       smax = s
+               if s < smin :
+                       smin = s
+       objs = data.active_layer.objects
+       for o in objs :
+               w = o.bounding_box.right - o.bounding_box.left
+               h = o.bounding_box.bottom - o.bounding_box.top
+               s = w * h
+               if s >= smin and s <= smax :
+                       d.select(o)
+       d.flush()
+
+
 dia.register_action ("SelectByName", "Name", 
                        "/DisplayMenu/Select/SelectBy/SelectByExtensionStart", 
                        select_by_name_cb)
@@ -125,3 +152,6 @@ dia.register_action ("SelectByLinecolor", "Line Color",
 dia.register_action ("SelectByTextcolor", "Text Color", 
                        "/DisplayMenu/Select/SelectBy/SelectByExtensionStart", 
                        select_by_text_color_cb)
+dia.register_action ("SelectBySize", "Size", 
+                       "/DisplayMenu/Select/SelectBy/SelectByExtensionStart", 
+                       select_by_size_cb)