Scalefonts (#236)

* fix #234

* fix #235

* missing function for streamlines

* adding test

tests/test_vcs_scalefont_new_to_removed.py

@@ -0,0 +1,17 @@
+import vcs
+import unittest
+
+class VCSScaleFOntToRemoved(unittest.TestCase):
+    def testRemoveTo(self):
+        #canvas = vcs.init()
+        nto = vcs.listelements("textorientation")
+        nt = vcs.listelements("template")
+        t = vcs.createtemplate()
+        t.scalefont(.6)
+        #canvas.removeobect(t)
+        vcs.removeobject(t)
+        nto2 = vcs.listelements("textorientation")
+        nt2 = vcs.listelements("template")
+        self.assertEqual(len(nto2),len(nto))
+        self.assertEqual(len(nt2),len(nt))
+

vcs/manageElements.py

@@ -1803,6 +1803,32 @@ def removeCp(obj):
 
 
 def removeP(obj):
+    # first we need to see if the template was scaled
+    # If so we need to remove the textorientation objects
+    # associated with this
+    if not vcs.istemplate(obj):
+        if obj not in vcs.elements["template"].keys():
+            raise RuntimeError("Cannot remove inexisting template %s" % obj)
+    if isinstance(obj, str):
+        obj = vcs.gettemplate(obj)
+    if obj._scaledFont:
+        try:
+            attr = vars(obj).keys()
+        except:
+            attr = obj.__slots__
+
+        if len(attr) == 0:
+            attr = obj.__slots__
+
+        for a in attr:
+            if a[0] == "_":
+                continue
+            try:
+                v = getattr(obj, a)
+                to = getattr(v, 'textorientation')
+                removeTo(to)
+            except:
+                pass
     return removeG(obj, "template")
 
 
@@ -1857,8 +1883,11 @@ def removeobject(obj):
             msg = vcs.removeG1d(obj.name)
         elif (obj.g_name == 'Gtd'):
             msg = vcs.removeGtd(obj.name)
+        elif (obj.g_name == 'Gs'):
+            msg = vcs.removeGs(obj.name)
         else:
             msg = 'Could not find the correct graphics class object.'
+            raise vcsError(msg)
     elif vcs.issecondaryobject(obj):
         if (obj.s_name == 'Tl'):
             msg = vcs.removeTl(obj.name)
@@ -1878,6 +1907,8 @@ def removeobject(obj):
             msg = vcs.removeCp(obj.name)
         else:
             msg = 'Could not find the correct secondary class object.'
+            raise vcsError(msg)
     else:
         msg = 'This is not a template, graphics method, or secondary method object.'
+        raise vcsError(msg)
     return msg

vcs/queries.py

@@ -323,6 +323,14 @@ def ismeshfill(obj):
 ismeshfill.__doc__ = xmldocs.is_docs['meshfill']  # noqa
 
 
+def isstreamline(obj):
+    if (isinstance(obj, streamline.Gs)):
+        return 1
+    else:
+        return 0
+isstreamline.__doc__ = xmldocs.is_docs['streamline']  # noqa
+
+
 def isboxfill(obj):
     if (isinstance(obj, boxfill.Gfb)):
         return 1

vcs/template.py

@@ -1480,6 +1480,7 @@ def scalefont(self, scale):
                 setattr(v, 'textorientation', to)
             except:
                 pass
+        self._scaledFont = True
 
     def drawLinesAndMarkersLegend(self, canvas,
                                   linecolors, linetypes, linewidths,