Add saving surface data to xml file

example/src/ofApp.cpp

@@ -67,6 +67,7 @@ void ofApp::keyPressed(int key)
         case 'i': bShowInfo = !bShowInfo; break;
         case 'r': addRandomSurface(); break;
         case 'f': ofToggleFullscreen(); break;
+        case 's': surfaceManager.saveXmlSettings("surfaces.xml"); break;
         default: break;
     }
 }

src/ofxSurfaceManager.cpp

@@ -124,6 +124,69 @@ void ofxSurfaceManager::clear()
     }
 }
 
+void ofxSurfaceManager::saveXmlSettings(string fileName)
+{
+    xmlSettings.clear();
+    
+    // save surfaces
+    xmlSettings.addTag("surfaces");
+    xmlSettings.pushTag("surfaces");
+    for ( int i=0; i<surfaces.size(); i++ ) {
+        
+        xmlSettings.addTag("surface");
+        xmlSettings.pushTag("surface", i);
+        ofxBaseSurface* surface = surfaces[i];
+        
+        xmlSettings.addTag("vertices");
+        xmlSettings.pushTag("vertices");
+        vector<ofVec3f>* vertices = &surface->getVertices();
+        for ( int j=0; j<vertices->size(); j++ ) {
+            xmlSettings.addTag("vertex");
+            xmlSettings.pushTag("vertex", j);
+            ofVec3f* vertex = &(*vertices)[j];
+            xmlSettings.addValue("x", vertex->x);
+            xmlSettings.addValue("y", vertex->y);
+            
+            // we don't need z as it will be 0 anyways
+            
+            xmlSettings.popTag(); // vertex
+        }
+        xmlSettings.popTag(); // vertices
+        
+        xmlSettings.addTag("texCoords");
+        xmlSettings.pushTag("texCoords");
+        vector<ofVec2f>* texCoords = &surface->getTexCoords();
+        for ( int j=0; j<texCoords->size(); j++ ) {
+            xmlSettings.addTag("texCoord");
+            xmlSettings.pushTag("texCoord", j);
+            ofVec2f* texCoord = &(*texCoords)[j];
+            xmlSettings.addValue("x", texCoord->x);
+            xmlSettings.addValue("y", texCoord->y);
+            xmlSettings.popTag(); // texCoord
+        }
+        xmlSettings.popTag(); // texCoords
+        
+        xmlSettings.addTag("source");
+        xmlSettings.pushTag("source");
+        
+        xmlSettings.addValue("source-type", "image");
+        xmlSettings.addValue("source-name", getSurfaceSourceName(surface));
+        //xmlSettings.addValue("source-path", "/root/etc/image.jpg");
+        
+        xmlSettings.popTag(); // source
+        
+        xmlSettings.popTag(); // surface
+    }
+    xmlSettings.popTag(); // surfaces
+    
+    xmlSettings.save(fileName);
+}
+
+void ofxSurfaceManager::loadXmlSettings(string fileName)
+{
+    
+}
+
 ofxBaseSurface* ofxSurfaceManager::selectSurface(int index)
 {
     if ( index >= surfaces.size() ) {
@@ -167,7 +230,12 @@ string ofxSurfaceManager::getSelectedSurfaceSourceName()
         return "none";
     }
     
-    ofTexture* tex = selectedSurface->getTexture();
+    return getSurfaceSourceName( selectedSurface );
+}
+
+string ofxSurfaceManager::getSurfaceSourceName(ofxBaseSurface *surface)
+{
+    ofTexture* tex = surface->getTexture();
     for ( int i=0; i<loadedImageSources.size(); i++ ) {
         if (tex == &loadedImageSources[i]->getTextureReference()) {
             return loadedImageSourceNames[i];

src/ofxSurfaceManager.h

@@ -5,6 +5,7 @@
 #include "ofxTriangleSurface.h"
 #include "ofxSurfaceType.h"
 #include "ofEvents.h"
+#include "ofxXmlSettings.h"
 
 using namespace std;
 
@@ -21,6 +22,9 @@ public:
     void addSurface(int surfaceType, ofTexture* texturePtr, vector<ofVec2f> vertices, vector<ofVec2f> texCoords);
     void manageMemory(); // deletes unasigned sources
     void clear();
+    void saveXmlSettings(string fileName);
+    void loadXmlSettings(string fileName);
+    
     ofxBaseSurface* getSurface(int index);
     int size();
     ofxBaseSurface* selectSurface(int index);
@@ -28,13 +32,15 @@ public:
     void deselectSurface();
     ofTexture* loadImageSource(string name, string path);
     string getSelectedSurfaceSourceName();
-    
+    string getSurfaceSourceName( ofxBaseSurface* surface );
     
 private:
     vector<ofxBaseSurface*> surfaces;
     ofxBaseSurface* selectedSurface;
     vector<string> loadedImageSourceNames;
     vector<ofImage*> loadedImageSources;
+    ofxXmlSettings xmlSettings;
+    
 };
 
 #endif