1 files changed, 116 insertions, 0 deletions
diff --git a/src/player/SVGElement.cpp b/src/player/SVGElement.cpp
new file mode 100644
index 0000000..dc0ba28
--- /dev/null
+++ b/src/player/SVGElement.cpp
@@ -0,0 +1,116 @@
+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library 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
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#include "SVGElement.h"
+
+#include "../base/StringHelper.h"
+#include "../base/Exception.h"
+#include "../base/Logger.h"
+
+using namespace std;
+
+namespace avg {
+
+SVGElement::SVGElement(RsvgHandle* pRSVG, const UTF8String& sFilename, 
+        const UTF8String& sElementID, bool bUnescapeIllustratorIDs)
+{
+    m_sUnescapedID = unescapeID(pRSVG, sFilename, sElementID, bUnescapeIllustratorIDs); 
+    
+    RsvgPositionData pos;
+    rsvg_handle_get_position_sub(pRSVG, &pos, m_sUnescapedID.c_str());
+    m_Pos = glm::vec2(pos.x, pos.y);
+    
+    RsvgDimensionData dim;
+    rsvg_handle_get_dimensions_sub(pRSVG, &dim, m_sUnescapedID.c_str());
+    m_Size = glm::vec2(dim.width+1, dim.height+1);
+}
+
+const UTF8String& SVGElement::getUnescapedID() const
+{
+    return m_sUnescapedID;
+}
+
+const glm::vec2& SVGElement::getPos() const
+{
+    return m_Pos;
+}
+
+const glm::vec2& SVGElement::getSize() const
+{
+    return m_Size;
+}
+
+UTF8String SVGElement::unescapeID(RsvgHandle* pRSVG, const UTF8String& sFilename,
+        const UTF8String& sElementID, bool bUnescapeIllustratorIDs)
+{
+    UTF8String sResult(string("#") + sElementID);
+    if (bUnescapeIllustratorIDs) {
+        vector<string> sPossibleIDs;
+        sPossibleIDs.push_back(sResult);
+        string::size_type pos = sResult.find("_");
+        if (pos != UTF8String::npos) {
+            while (pos != UTF8String::npos) {
+                sResult.replace(pos, 1, "_x5F_");
+                pos = sResult.find("_", pos+5);
+            }
+            sPossibleIDs.push_back(sResult);
+        }
+        // Illustrator adds suffixes to IDs to get rid of duplicates. Even after the
+        // duplicates are removed, the suffixes remain :-(.
+        // We handle two cases here: 
+        // 1) If there is only one version with a suffix, we take that version.
+        // 2) If there are duplicate IDs, we warn.
+        for (int i=1; i<30; ++i) {
+            string sTempID = sResult + "_" + toString(i) + "_";
+            sPossibleIDs.push_back(sTempID);
+        }
+        int numFound = 0;
+        for (int i=0; i<30; ++i) {
+            string sTempID = sPossibleIDs[i];
+            if (rsvg_handle_has_sub(pRSVG, sTempID.c_str())) {
+                sResult = sTempID;
+                numFound += 1;
+            }
+        }
+        if (numFound == 0) {
+            throwIDNotFound(sFilename, sElementID);
+        }
+        if (numFound > 1) {
+            AVG_LOG_WARNING("svg file '" << sFilename << 
+                    "' has more than one element with id '" << sElementID << "'.");
+        }
+    } else {
+        if (!rsvg_handle_has_sub(pRSVG, sResult.c_str())) {
+            throwIDNotFound(sFilename, sElementID);
+        }
+    }
+    return sResult;
+}
+
+void SVGElement::throwIDNotFound(const UTF8String& sFilename, 
+        const UTF8String& sElementID)
+{
+    throw Exception(AVG_ERR_INVALID_ARGS, 
+            string("svg file '") + sFilename + "' does not have an element with id '" + 
+            sElementID + "'.");
+}
+
+}