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//
// 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 + "'.");
}
}
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