From fd1595bae6f5041b46f24b613d35fad471463dca Mon Sep 17 00:00:00 2001
From: gsherman <gsherman@c8812cc2-4d05-0410-92ff-de0c093fc19c>
Date: Sat, 25 Jan 2003 04:37:10 +0000
Subject: [PATCH] file save/open

git-svn-id: http://svn.osgeo.org/qgis/trunk@176 c8812cc2-4d05-0410-92ff-de0c093fc19c
---
 qgis/src/qgisapp.cpp      |  11 +++-
 qgis/src/qgisapp.h        |   2 +
 qgis/src/qgsprojectio.cpp | 105 ++++++++++++++++++++++++++++++++++++--
 3 files changed, 114 insertions(+), 4 deletions(-)

diff --git a/qgis/src/qgisapp.cpp b/qgis/src/qgisapp.cpp
index 66bea9054b2..9d6413e5f42 100644
--- a/qgis/src/qgisapp.cpp
+++ b/qgis/src/qgisapp.cpp
@@ -312,7 +312,16 @@ void QgisApp::fileExit()
 	QApplication::exit();
 
 }
-
+void QgisApp::fileOpen(){
+	mapCanvas->freeze(true);
+	QgsProjectIo *pio = new QgsProjectIo(mapCanvas, QgsProjectIo::OPEN);
+	
+	pio->read();
+	delete pio;
+	
+	mapLegend->update();
+	mapCanvas->freeze(false);
+}
 void QgisApp::fileSave(){
 	QgsProjectIo *pio = new QgsProjectIo(mapCanvas, QgsProjectIo::SAVE);
 	pio->write();
diff --git a/qgis/src/qgisapp.h b/qgis/src/qgisapp.h
index 2c6f48d6ec1..3d507c4e992 100644
--- a/qgis/src/qgisapp.h
+++ b/qgis/src/qgisapp.h
@@ -100,6 +100,8 @@ class QgisApp:public QgisAppBase
 	void fileSave();
 	//! Save project as
 	void fileSaveAs();
+	//! Open a project
+	void fileOpen();
   private:
 //! Popup menu
 	  QPopupMenu * popMenu;
diff --git a/qgis/src/qgsprojectio.cpp b/qgis/src/qgsprojectio.cpp
index 32c0cedeeb4..99ee6429a65 100644
--- a/qgis/src/qgsprojectio.cpp
+++ b/qgis/src/qgsprojectio.cpp
@@ -14,8 +14,11 @@
  #include <iostream>
  #include <fstream>
  #include <qfiledialog.h>
+ #include <qdom.h>
  #include <qmessagebox.h>
+ #include <qcolor.h>
  #include "qgsmaplayer.h"
+ #include "qgsdatabaselayer.h"
 #include "qgsmapcanvas.h"
 #include "qgsprojectio.h"
  
@@ -42,7 +45,101 @@ void QgsProjectIo::write(){
 	}
 }
 void QgsProjectIo::read(){
-	selectFileName();
+	QString path = selectFileName();
+	QDomDocument *doc;
+	if(!path.isEmpty()){
+	doc = new QDomDocument( "qgisdocument" );
+    QFile file( path );
+    if ( !file.open( IO_ReadOnly ) )
+        return;
+    if ( !doc->setContent( &file ) ) {
+        file.close();
+        return;
+    }
+    file.close();
+	
+	QDomNodeList nl = doc->elementsByTagName("maplayer");
+	QString layerCount;
+	layerCount = layerCount.setNum(nl.count());
+	//QMessageBox::information(0, "Number of map layers", layerCount);
+	QString wk;
+	// process the map layer nodes
+	for(int i = 0; i < nl.count(); i++){
+		QDomNode node = nl.item(i);
+		QDomElement element = node.toElement();
+		QString type = element.attribute("type");
+		QString visible = element.attribute("visible");
+		
+		//QMessageBox::information(0,"Type of map layer", type);
+		// process layer name
+		QDomNode mnl = node.namedItem("layername"); 
+		QTextStream ts( &wk, IO_WriteOnly );
+		ts << mnl.nodeType();
+		//QMessageBox::information(0,"Node Type", wk);
+		QDomElement mne = mnl.toElement();
+		//QMessageBox::information(0,"Layer Name", mne.text());
+		QString layerName = mne.text();
+		
+		//process data source
+		mnl = node.namedItem("datasource"); 
+		mne = mnl.toElement();
+		//QMessageBox::information(0,"Datasource Name", mne.text());
+		QString dataSource = mne.text();
+		
+		//process zorder
+		mnl = node.namedItem("zorder"); 
+		mne = mnl.toElement();
+		//QMessageBox::information(0,"Zorder", mne.text());
+		
+		//process symbology
+		mnl = node.namedItem("symbol"); 
+		QDomNode snode = mnl.namedItem("linewidth");
+		QDomElement lineElement = snode.toElement();
+		int lineWidth = lineElement.text().toInt();
+		
+		
+		snode = mnl.namedItem("outlinecolor");
+		QDomElement colorElement = snode.toElement();
+		int olRed = colorElement.attribute("red").toInt();
+		int olGreen = colorElement.attribute("green").toInt();
+		int olBlue = colorElement.attribute("blue").toInt();
+		
+		snode = mnl.namedItem("fillcolor");
+		colorElement = snode.toElement();
+		int fillRed = colorElement.attribute("red").toInt();
+		int fillGreen = colorElement.attribute("green").toInt();
+		int fillBlue = colorElement.attribute("blue").toInt();
+		
+		QgsSymbol *sym = new QgsSymbol();
+		sym->setFillColor( QColor(fillRed, fillGreen, fillBlue));
+		sym->setColor(QColor(olRed, olGreen, olBlue));
+		sym->setLineWidth(lineWidth);
+		// get the linewidth information
+		
+		//QMessageBox::information(0,"Zorder", mne.text());
+		
+		
+		// add the layer to the maplayer
+		
+		if(type = "database"){
+			
+				QgsDatabaseLayer *dbl = new QgsDatabaseLayer(dataSource, layerName);
+				
+				map->addLayer(dbl);
+				dbl->setSymbol(sym);
+				dbl->setVisible(visible == "1");
+		}else{
+			if(type == "vector"){
+			}else{
+				if(type == "raster"){
+				}
+				}
+			}
+			
+	
+	}
+	
+	}
 }
 QString QgsProjectIo::selectFileName(){
 if(action == SAVE && fullPath.isEmpty()){
@@ -97,9 +194,11 @@ void QgsProjectIo::writeXML(){
 			QgsSymbol *sym = lyr->symbol();
 			xml << "\t\t\t<linewidth>" << sym->lineWidth() << "</linewidth>\n";
 			QColor outlineColor = sym->color();
-			xml << "\t\t\t<outlinecolor red=\"" << outlineColor.red() << "\" green=\"" << outlineColor.green() << "\" blue=\"" << outlineColor.blue() << "\" />\n";
+			xml << "\t\t\t<outlinecolor red=\"" << outlineColor.red() << "\" green=\"" 
+				<< outlineColor.green() << "\" blue=\"" << outlineColor.blue() << "\" />\n";
 			QColor fillColor = sym->fillColor();
-			xml << "\t\t\t<fillcolor red=\"" << fillColor.red() << "\" green=\"" << fillColor.green() << "\" blue=\"" << fillColor.blue() << "\" />\n";
+			xml << "\t\t\t<fillcolor red=\"" << fillColor.red() << "\" green=\"" 
+				<< fillColor.green() << "\" blue=\"" << fillColor.blue() << "\" />\n";
 
 			xml << "\t\t</symbol>\n";
 			xml << "\t</maplayer>\n";