** Added getDefaultValue() in QgsVectorLayer and QgsVectorDataProvider,

implemented it in the GPX provider


git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@2181 c8812cc2-4d05-0410-92ff-de0c093fc19c

ChangeLog

@@ -3,6 +3,10 @@ ChangeLog,v 1.200 2004/10/21 17:27:35 mcoletti Exp
 ------------------------------------------------------------------------------
 Version 0.6 'Simon' .... development version
 
+2004-10-29 [larsl] 0.5.0devel16
+** Added getDefaultValue() in QgsVectorLayer and QgsVectorDataProvider,
+   implemented it in the GPX provider
+
 2004-10-29 [stevehalasz] 0.5.0devel15
 * Write layers to projects files in the proper order by iterating over the
   zOrder in the map canvas. Fixes bug #1054332.

configure.in

@@ -26,7 +26,7 @@ dnl ---------------------------------------------------------------------------
 MAJOR_VERSION=0
 MINOR_VERSION=5
 MICRO_VERSION=0
-EXTRA_VERSION=15
+EXTRA_VERSION=16
 if test $EXTRA_VERSION -eq 0; then
     VERSION=${MAJOR_VERSION}.${MINOR_VERSION}.${MICRO_VERSION}
 else

providers/gpx/qgsgpxprovider.cpp

@@ -763,6 +763,13 @@ bool QgsGPXProvider::deleteFeature(int id) {
 }
 
 
+QString QgsGPXProvider::getDefaultValue(const QString& attr, QgsFeature* f) {
+  if (attr == "source")
+    return "Digitized in QGIS";
+  return "";
+}
+
+
 /** 
  * Check to see if the point is within the selection rectangle
  */

providers/gpx/qgsgpxprovider.h

@@ -166,7 +166,10 @@ public:
    @param id the number of the feature
    @return true in case of success and false in case of failure*/
   bool deleteFeature(int id);
-
+  
+  /**Returns the default value for attribute @c attr for feature @c f. */
+  QString getDefaultValue(const QString& attr, QgsFeature* f);
+  
   /**
    * Check to see if the point is withn the selection
    * rectangle

src/qgsmapcanvas.cpp

@@ -1211,7 +1211,7 @@ void QgsMapCanvas::mouseReleaseEvent(QMouseEvent * e)
 	std::vector<QgsField> fields=vlayer->fields();
 	for(std::vector<QgsField>::iterator it=fields.begin();it!=fields.end();++it)
 	{
-	    f->addAttribute((*it).name(),"");
+	  f->addAttribute((*it).name(), vlayer->getDefaultValue(it->name(),f));
 	}
 	
 	//show the dialog to enter attribute values
@@ -1331,7 +1331,7 @@ void QgsMapCanvas::mouseReleaseEvent(QMouseEvent * e)
       std::vector<QgsField> fields=vlayer->fields();
       for(std::vector<QgsField>::iterator it=fields.begin();it!=fields.end();++it)
       {
-	  f->addAttribute((*it).name(),"");
+	f->addAttribute((*it).name(),vlayer->getDefaultValue(it->name(), f));
       }
 
       //show the dialog to enter attribute values

src/qgsvectordataprovider.cpp

@@ -94,6 +94,13 @@ bool QgsVectorDataProvider::deleteFeature(int id)
     return false;
 }
 
+
+QString QgsVectorDataProvider::getDefaultValue(const QString& attr, 
+					       QgsFeature* f) {
+  return "";
+}
+
+
 bool QgsVectorDataProvider::commitFeature(QgsFeature* f)
 {
     //needs to be done by subclasses

src/qgsvectordataprovider.h

@@ -101,6 +101,9 @@ class QgsVectorDataProvider: public QgsDataProvider
        @return true in case of success and false in case of failure*/
     virtual bool deleteFeature(int id);
 
+    /**Returns the default value for attribute @c attr for feature @c f. */
+    virtual QString getDefaultValue(const QString& attr, QgsFeature* f);
+    
     /**
      * Identify features within the search radius specified by rect
      * @param rect Bounding rectangle of search radius

src/qgsvectorlayer.cpp

@@ -1246,6 +1246,12 @@ void QgsVectorLayer::select(int number)
       return false;
     }
 
+
+    QString QgsVectorLayer::getDefaultValue(const QString& attr, 
+					    QgsFeature* f) {
+      return dataProvider->getDefaultValue(attr, f);
+    }
+
     bool QgsVectorLayer::deleteSelectedFeatures()
     {
 #ifdef QGISDEBUG

src/qgsvectorlayer.h

@@ -195,6 +195,10 @@ class QgsVectorLayer : public QgsMapLayer
      @return true in case of success and false otherwise*/
   bool deleteSelectedFeatures();
   
+  /**Returns the default value for the attribute @c attr for the feature
+     @c f. */
+  QString getDefaultValue(const QString& attr, QgsFeature* f);
+  
   /**Set labels on */
   void setLabelOn( bool on );