From 4fc3975983c401a7fb95084ab2db10d609e36f05 Mon Sep 17 00:00:00 2001
From: Thomas Holder <speleo3@users.sourceforge.net>
Date: Tue, 16 Dec 2008 15:52:36 +0000
Subject: * remove sp_item_i2root_affine and sp_item_i2r_affine and replace all
 calls by    sp_item_i2doc_affine or sp_item_i2d_affine respectively  * remove
 sp_root_bbox, root->c2p was considered in the wrong place there  * in
 sp_item_i2doc_affine do not consider SP_ITEM(object)->transform for root   
 node, because <svg> node does not have a transform attribute  * fix style
 scaling for boolean operations (with viewBox)  * fix zoom to fit drawing
 (with viewBox)  * fix export area size for "export drawing" (with viewBox)  *
 fix simultaneous movement of clone + original (with viewBox)

(bzr r7010)
---
 src/sp-item.cpp | 42 ++++++------------------------------------
 1 file changed, 6 insertions(+), 36 deletions(-)

(limited to 'src/sp-item.cpp')

diff --git a/src/sp-item.cpp b/src/sp-item.cpp
index 78561de1b..519ed2a45 100644
--- a/src/sp-item.cpp
+++ b/src/sp-item.cpp
@@ -1515,8 +1515,9 @@ i2anc_affine(SPObject const *object, SPObject const *const ancestor) {
     while ( object != ancestor && SP_IS_ITEM(object) ) {
         if (SP_IS_ROOT(object)) {
             ret *= SP_ROOT(object)->c2p;
+        } else {
+            ret *= SP_ITEM(object)->transform;
         }
-        ret *= SP_ITEM(object)->transform;
         object = SP_OBJECT_PARENT(object);
     }
     return ret;
@@ -1543,30 +1544,8 @@ Geom::Matrix sp_item_i2doc_affine(SPItem const *item)
 }
 
 /**
- * Returns the accumulated transformation of the item and all its ancestors, but excluding root's viewport.
- * Used in path operations mostly.
- * \pre (item != NULL) and SP_IS_ITEM(item).
+ * Returns the transformation from item to desktop coords
  */
-Geom::Matrix sp_item_i2root_affine(SPItem const *item)
-{
-    g_assert(item != NULL);
-    g_assert(SP_IS_ITEM(item));
-
-    Geom::Matrix ret(Geom::identity());
-    g_assert(ret.isIdentity());
-    while ( NULL != SP_OBJECT_PARENT(item) ) {
-        ret *= item->transform;
-        item = SP_ITEM(SP_OBJECT_PARENT(item));
-    }
-    g_assert(SP_IS_ROOT(item));
-
-    ret *= item->transform;
-
-    return ret;
-}
-
-/* fixme: This is EVIL!!! */
-// fix this note: why/what evil? :)
 Geom::Matrix sp_item_i2d_affine(SPItem const *item)
 {
     g_assert(item != NULL);
@@ -1578,18 +1557,6 @@ Geom::Matrix sp_item_i2d_affine(SPItem const *item)
     return ret;
 }
 
-// same as i2d but with i2root instead of i2doc
-Geom::Matrix sp_item_i2r_affine(SPItem const *item)
-{
-    g_assert(item != NULL);
-    g_assert(SP_IS_ITEM(item));
-
-    Geom::Matrix const ret( sp_item_i2root_affine(item)
-                          * Geom::Scale(1, -1)
-                          * Geom::Translate(0, sp_document_height(SP_OBJECT_DOCUMENT(item))) );
-    return ret;
-}
-
 /**
  * Converts a matrix \a m into the desktop coords of the \a item.
  * Will become a noop when we eliminate the coordinate flipping.
@@ -1632,6 +1599,9 @@ void sp_item_set_i2d_affine(SPItem *item, Geom::Matrix const &i2dt)
 }
 
 
+/**
+ * should rather be named "sp_item_d2i_affine" to match "sp_item_i2d_affine" (or vice versa)
+ */
 Geom::Matrix
 sp_item_dt2i_affine(SPItem const *item)
 {
-- 
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