X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=share%2Fextensions%2Fsimpletransform.py;h=ec224990b258af2943a635825de1a2e1f6422cda;hb=c978f17cd54294ccf4a3714c0bbda5924ecd6958;hp=983874f7c701e061dba624acd419a208905a6d4e;hpb=519331d368aba3d43cf2c121b14be130ed54ef35;p=inkscape.git

diff --git a/share/extensions/simpletransform.py b/share/extensions/simpletransform.py
index 983874f7c..ec224990b 100644
--- a/share/extensions/simpletransform.py
+++ b/share/extensions/simpletransform.py
@@ -1,164 +1,179 @@
-#!/usr/bin/env python
-'''
-Copyright (C) 2006 Jean-Francois Barraud, barraud@math.univ-lille1.fr
-
-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
-barraud@math.univ-lille1.fr
-
-This code defines several functions to make handling of transform
-attribute easier.
-'''
-import inkex, cubicsuperpath, bezmisc, simplestyle
-import copy, math, re
-
-def parseTransform(transf,mat=[[1.0,0.0,0.0],[0.0,1.0,0.0]]):
-    if transf=="" or transf==None:
-        return(mat)
-    result=re.match("(translate|scale|rotate|skewX|skewY|matrix)\(([^)]*)\)",transf)
-#-- translate --
-    if result.group(1)=="translate":
-        args=result.group(2).split(",")
-        dx=float(args[0])
-        if len(args)==1:
-            dy=0.0
-        else:
-            dy=float(args[1])
-        matrix=[[1,0,dx],[0,1,dy]]
-#-- scale --
-    if result.groups(1)=="scale":
-        args=result.group(2).split(",")
-        sx=float(args[0])
-        if len(args)==1:
-            sy=sx
-        else:
-            sy=float(args[1])
-        matrix=[[sx,0,0],[0,sy,0]]
-#-- rotate --
-    if result.groups(1)=="rotate":
-        args=result.group(2).split(",")
-        a=float(args[0])*math.pi/180
-        if len(args)==1:
-            cx,cy=(0.0,0.0)
-        else:
-            cx,cy=args[1:]
-        matrix=[[math.cos(a),-math.sin(a),cx],[math.sin(a),math.cos(a),cy]]
-#-- skewX --
-    if result.groups(1)=="skewX":
-        a=float(result.group(2))*math.pi/180
-        matrix=[[1,math.tan(a),0],[0,1,0]]
-#-- skewX --
-    if result.groups(1)=="skewX":
-        a=float(result.group(2))*math.pi/180
-        matrix=[[1,0,0],[math.tan(a),1,0]]
-#-- matrix --
-    if result.group(1)=="matrix":
-        a11,a21,a12,a22,v1,v2=result.group(2).split(",")
-        matrix=[[float(a11),float(a12),float(v1)],[float(a21),float(a22),float(v2)]]
-    
-    matrix=composeTransform(mat,matrix)
-    if result.end()<len(transf):
-        return(parseTransform(transf[result.end():],matrix))
-    else:
-        return matrix
-
-def formatTransform(mat):
-    return("matrix(%f,%f,%f,%f,%f,%f)"%(mat[0][0],mat[1][0],mat[0][1],mat[1][1],mat[0][2],mat[1][2]))
-
-def composeTransform(M1,M2):
-    a11=M1[0][0]*M2[0][0]+M1[0][1]*M2[1][0]
-    a12=M1[0][0]*M2[0][1]+M1[0][1]*M2[1][1]
-    a21=M1[1][0]*M2[0][0]+M1[1][1]*M2[1][0]
-    a22=M1[1][0]*M2[0][1]+M1[1][1]*M2[1][1]
-
-    v1=M1[0][0]*M2[0][2]+M1[0][1]*M2[1][2]+M1[0][2]
-    v2=M1[1][0]*M2[0][2]+M1[1][1]*M2[1][2]+M1[1][2]
-    return [[a11,a12,v1],[a21,a22,v2]]
-
-def applyTransformToNode(mat,node):
-    m=parseTransform(node.get("transform"))
-    newtransf=formatTransform(composeTransform(mat,m))
-    node.set("transform", newtransf)
-
-def applyTransformToPoint(mat,pt):
-    x=mat[0][0]*pt[0]+mat[0][1]*pt[1]+mat[0][2]
-    y=mat[1][0]*pt[0]+mat[1][1]*pt[1]+mat[1][2]
-    pt[0]=x
-    pt[1]=y
-
-def applyTransformToPath(mat,path):
-    for comp in path:
-        for ctl in comp:
-            for pt in ctl:
-                applyTransformToPoint(mat,pt)
-
-def fuseTransform(node):
-    if node.get('d')==None:
-        #FIX ME: how do you raise errors?
-        raise AssertionError, 'can not fuse "transform" of elements that have no "d" attribute'
-    t = node.get("transform")
-    if t == None:
-        return
-    m = parseTransform(t)
-    d = node.get('d')
-    p = cubicsuperpath.parsePath(d)
-    applyTransformToPath(m,p)
-    node.set('d', cubicsuperpath.formatPath(p))
-    del node.attrib["transform"]
-
-####################################################################
-##-- Some functions to compute a rough bbox of a given list of objects.
-##-- this should be shipped out in an separate file...
-
-def boxunion(b1,b2):
-    if b1 is None:
-        return b2
-    elif b2 is None:
-        return b1    
-    else:
-        return((min(b1[0],b2[0]),max(b1[1],b2[1]),min(b1[2],b2[2]),max(b1[3],b2[3])))
-
-def roughBBox(path):
-    xmin,xMax,ymin,yMax=path[0][0][0][0],path[0][0][0][0],path[0][0][0][1],path[0][0][0][1]
-    for pathcomp in path:
-        for ctl in pathcomp:
-           for pt in ctl:
-               xmin=min(xmin,pt[0])
-               xMax=max(xMax,pt[0])
-               ymin=min(ymin,pt[1])
-               yMax=max(yMax,pt[1])
-    return xmin,xMax,ymin,yMax
-
-def computeBBox(aList,mat=[[1,0,0],[0,1,0]]):
-    bbox=None
-    for node in aList:
-        m = parseTransform(node.get('transform'))
-        m = composeTransform(mat,m)
-        #TODO: text not supported!
-        if node.get("d"):
-            d = node.get('d')
-            p = cubicsuperpath.parsePath(d)
-            applyTransformToPath(m,p)
-            bbox=boxunion(roughBBox(p),bbox)
-
-        if  node.tag == inkex.addNS('use','svg') or node.tag=='use':
-            refid=node.get(inkex.addNS('href','xlink'))
-            path = '//*[@id="%s"]' % refid[1:]
-            refnode = node.getroottree().xpath(path,inkex.NSS)
-            bbox=boxunion(computeBBox(refnode,m),bbox)
-            
-        bbox=boxunion(computeBBox(node,m),bbox)
-    return bbox
-
-
+#!/usr/bin/env python
+'''
+Copyright (C) 2006 Jean-Francois Barraud, barraud@math.univ-lille1.fr
+
+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
+barraud@math.univ-lille1.fr
+
+This code defines several functions to make handling of transform
+attribute easier.
+'''
+import inkex, cubicsuperpath, bezmisc, simplestyle
+import copy, math, re
+
+def parseTransform(transf,mat=[[1.0, 0.0, 0.0], [0.0, 1.0, 0.0]]):
+    if transf=="" or transf==None:
+        return(mat)
+    stransf = transf.strip()
+    result=re.match("(translate|scale|rotate|skewX|skewY|matrix)\s*\(([^)]*)\)\s*,?",stransf)
+#-- translate --
+    if result.group(1)=="translate":
+        args=result.group(2).replace(',',' ').split()
+        dx=float(args[0])
+        if len(args)==1:
+            dy=0.0
+        else:
+            dy=float(args[1])
+        matrix=[[1,0,dx],[0,1,dy]]
+#-- scale --
+    if result.group(1)=="scale":
+        args=result.group(2).replace(',',' ').split()
+        sx=float(args[0])
+        if len(args)==1:
+            sy=sx
+        else:
+            sy=float(args[1])
+        matrix=[[sx,0,0],[0,sy,0]]
+#-- rotate --
+    if result.group(1)=="rotate":
+        args=result.group(2).replace(',',' ').split()
+        a=float(args[0])*math.pi/180
+        if len(args)==1:
+            cx,cy=(0.0,0.0)
+        else:
+            cx,cy=map(float,args[1:])
+        matrix=[[math.cos(a),-math.sin(a),cx],[math.sin(a),math.cos(a),cy]]
+#-- skewX --
+    if result.group(1)=="skewX":
+        a=float(result.group(2))*math.pi/180
+        matrix=[[1,math.tan(a),0],[0,1,0]]
+#-- skewY --
+    if result.group(1)=="skewY":
+        a=float(result.group(2))*math.pi/180
+        matrix=[[1,0,0],[math.tan(a),1,0]]
+#-- matrix --
+    if result.group(1)=="matrix":
+        a11,a21,a12,a22,v1,v2=result.group(2).replace(',',' ').split()
+        matrix=[[float(a11),float(a12),float(v1)], [float(a21),float(a22),float(v2)]]
+
+    matrix=composeTransform(mat,matrix)
+    if result.end() < len(stransf):
+        return(parseTransform(stransf[result.end():], matrix))
+    else:
+        return matrix
+
+def formatTransform(mat):
+    return ("matrix(%f,%f,%f,%f,%f,%f)" % (mat[0][0], mat[1][0], mat[0][1], mat[1][1], mat[0][2], mat[1][2]))
+
+def composeTransform(M1,M2):
+    a11 = M1[0][0]*M2[0][0] + M1[0][1]*M2[1][0]
+    a12 = M1[0][0]*M2[0][1] + M1[0][1]*M2[1][1]
+    a21 = M1[1][0]*M2[0][0] + M1[1][1]*M2[1][0]
+    a22 = M1[1][0]*M2[0][1] + M1[1][1]*M2[1][1]
+
+    v1 = M1[0][0]*M2[0][2] + M1[0][1]*M2[1][2] + M1[0][2]
+    v2 = M1[1][0]*M2[0][2] + M1[1][1]*M2[1][2] + M1[1][2]
+    return [[a11,a12,v1],[a21,a22,v2]]
+
+def applyTransformToNode(mat,node):
+    m=parseTransform(node.get("transform"))
+    newtransf=formatTransform(composeTransform(mat,m))
+    node.set("transform", newtransf)
+
+def applyTransformToPoint(mat,pt):
+    x = mat[0][0]*pt[0] + mat[0][1]*pt[1] + mat[0][2]
+    y = mat[1][0]*pt[0] + mat[1][1]*pt[1] + mat[1][2]
+    pt[0]=x
+    pt[1]=y
+
+def applyTransformToPath(mat,path):
+    for comp in path:
+        for ctl in comp:
+            for pt in ctl:
+                applyTransformToPoint(mat,pt)
+
+def fuseTransform(node):
+    if node.get('d')==None:
+        #FIXME: how do you raise errors?
+        raise AssertionError, 'can not fuse "transform" of elements that have no "d" attribute'
+    t = node.get("transform")
+    if t == None:
+        return
+    m = parseTransform(t)
+    d = node.get('d')
+    p = cubicsuperpath.parsePath(d)
+    applyTransformToPath(m,p)
+    node.set('d', cubicsuperpath.formatPath(p))
+    del node.attrib["transform"]
+
+####################################################################
+##-- Some functions to compute a rough bbox of a given list of objects.
+##-- this should be shipped out in an separate file...
+
+def boxunion(b1,b2):
+    if b1 is None:
+        return b2
+    elif b2 is None:
+        return b1    
+    else:
+        return((min(b1[0],b2[0]), max(b1[1],b2[1]), min(b1[2],b2[2]), max(b1[3],b2[3])))
+
+def roughBBox(path):
+    xmin,xMax,ymin,yMax = path[0][0][0][0],path[0][0][0][0],path[0][0][0][1],path[0][0][0][1]
+    for pathcomp in path:
+        for ctl in pathcomp:
+            for pt in ctl:
+                xmin = min(xmin,pt[0])
+                xMax = max(xMax,pt[0])
+                ymin = min(ymin,pt[1])
+                yMax = max(yMax,pt[1])
+    return xmin,xMax,ymin,yMax
+
+def computeBBox(aList,mat=[[1,0,0],[0,1,0]]):
+    bbox=None
+    for node in aList:
+        m = parseTransform(node.get('transform'))
+        m = composeTransform(mat,m)
+        #TODO: text not supported!
+        if node.get("d"):
+            d = node.get('d')
+            p = cubicsuperpath.parsePath(d)
+            applyTransformToPath(m,p)
+            bbox=boxunion(roughBBox(p),bbox)
+
+        elif node.tag == inkex.addNS('rect','svg') or node.tag=='rect':
+            w = float(node.get('width'))/2.
+            h = float(node.get('height'))/2.
+            x = float(node.get('x'))
+            y = float(node.get('y'))
+            C = [x + w , y + h ]
+            applyTransformToPoint(mat,C)
+            xmin = C[0] - abs(m[0][0]) * w - abs(m[0][1]) * h
+            xmax = C[0] + abs(m[0][0]) * w + abs(m[0][1]) * h
+            ymin = C[1] - abs(m[1][0]) * w - abs(m[1][1]) * h
+            ymax = C[1] + abs(m[1][0]) * w + abs(m[1][1]) * h
+            bbox = xmin,xmax,ymin,ymax
+            
+        elif node.tag == inkex.addNS('use','svg') or node.tag=='use':
+            refid=node.get(inkex.addNS('href','xlink'))
+            path = '//*[@id="%s"]' % refid[1:]
+            refnode = node.xpath(path)
+            bbox=boxunion(computeBBox(refnode,m),bbox)
+            
+        bbox=boxunion(computeBBox(node,m),bbox)
+    return bbox
+
+
+# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99