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author
mhugent
committedSep 1, 2006
Added a very early version of a wfs plugin
git-svn-id: http://svn.osgeo.org/qgis/trunk@5744 c8812cc2-4d05-0410-92ff-de0c093fc19c
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ltr-3_40Before-merge-new_vector_api
1 parent e86f0da commit 829e1e1

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‎src/plugins/wfs/mIconAddWfsLayer.xpm

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/* XPM */
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static char *mIconAddWfsLayer[]={
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‎src/plugins/wfs/qgswfsplugin.cpp

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/***************************************************************************
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qgswfsplugin.h
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-------------------
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begin : July 25, 2006
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copyright : (C) 2006 by Marco Hugentobler
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email : marco dot hugentobler at karto dot baug dot ethz dot ch
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgsproviderregistry.h"
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#include "qgswfssourceselect.h"
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#include "qgssinglesymbolrenderer.h"
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#include "qgsvectorlayer.h"
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#include "qgswfsplugin.h"
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#include "qgswfsprovider.h"
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#include "mIconAddWfsLayer.xpm"
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#ifdef WIN32
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#define QGISEXTERN extern "C" __declspec( dllexport )
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#else
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#define QGISEXTERN extern "C"
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#endif
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QgsWFSPlugin::QgsWFSPlugin(QgisApp* app, QgisIface* iface): QgisPlugin("WFS plugin", "A plugin to add WFS layers to the QGIS canvas", "Version 0.0001", QgisPlugin::MAPLAYER), mApp(app), mIface(iface), mWfsDialogAction(0)
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{
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}
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QgsWFSPlugin::~QgsWFSPlugin()
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{
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delete mWfsDialogAction;
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}
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void QgsWFSPlugin::initGui()
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{
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if(mIface)
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{
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//mIface->addVectorLayer("http://karlinapp.ethz.ch/cgi-bin/mapserv?map=/home/marco/mapfiles/mapfile1.map&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=states", "states", "WFS");
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//mIface->addVectorLayer("http://karlinapp.ethz.ch/cgi-bin/mapserv?map=/home/marco/mapfiles/mapfile1.map&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=usroads", "usroads", "WFS");
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//mIface->addVectorLayer("http://localhost/cgi-bin/mapserv?map=/var/www/mapfile_europe.map&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=mjrivers", "mjrivers", "WFS");
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//mIface->addVectorLayer("http://localhost/cgi-bin/mapserv?map=/var/www/mapfile_europe.map&SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=cities", "cities", "WFS");
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//mIface->addVectorLayer("http://map.ns.ec.gc.ca/MapServer/mapserv.exe?map=/mapserver/services/envdat/config.map&service=WFS&version=1.0.0&request=GetFeature&TYPENAME=envirodat", "envirodat", "WFS");
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mWfsDialogAction = new QAction(QIcon(mIconAddWfsLayer), tr("&Add WFS layer"), 0);
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QObject::connect(mWfsDialogAction, SIGNAL(activated()), this, SLOT(showSourceDialog()));
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mIface->addToolBarIcon(mWfsDialogAction);
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mIface->addPluginMenu(tr("&Add WFS layer"), mWfsDialogAction);
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}
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}
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void QgsWFSPlugin::unload()
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{
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mIface->removeToolBarIcon(mWfsDialogAction);
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mIface->removePluginMenu(tr("&Add WFS layer"), mWfsDialogAction);
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delete mWfsDialogAction;
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mWfsDialogAction = 0;
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}
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void QgsWFSPlugin::showSourceDialog()
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{
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QgsWFSSourceSelect serverDialog(0, mIface);
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serverDialog.exec();
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}
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QGISEXTERN QgisPlugin * classFactory(QgisApp * theQGisAppPointer, QgisIface * theQgisInterfacePointer)
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{
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return new QgsWFSPlugin(theQGisAppPointer, theQgisInterfacePointer);
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}
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QGISEXTERN QString name()
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{
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return QString("WFS plugin");
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}
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QGISEXTERN QString description()
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{
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return QString("A plugin to add WFS layers to the QGIS canvas");
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}
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QGISEXTERN QString version()
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{
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return QString("Version 0.0001");
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}
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QGISEXTERN int type()
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{
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return QgisPlugin::UI;
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}
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QGISEXTERN void unload(QgisPlugin* theQgsWFSPluginPointer)
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{
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delete theQgsWFSPluginPointer;
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}

‎src/plugins/wfs/qgswfsplugin.h

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/***************************************************************************
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qgswfsplugin.h
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-------------------
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begin : July 25, 2006
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copyright : (C) 2006 by Marco Hugentobler
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email : marco dot hugentobler at karto dot baug dot ethz dot ch
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSWFSPLUGIN_H
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#define QGSWFSPLUGIN_H
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#include "qgisplugin.h"
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#include <QObject>
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class QGisApp;
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class QgisIface;
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/**A plugin for adding vector layers with the WFS provider*/
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class QgsWFSPlugin: public QObject, public QgisPlugin
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{
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Q_OBJECT
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public:
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QgsWFSPlugin(QgisApp* app, QgisIface* iface);
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~QgsWFSPlugin();
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/**initialize connection to GUI*/
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void initGui();
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/**Unload the plugin and cleanup the GUI*/
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void unload();
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private:
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QgisApp* mApp;
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QgisIface* mIface;
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QAction* mWfsDialogAction;
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private slots:
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void showSourceDialog();
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};
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#endif

‎src/plugins/wfs/qgswfssourceselect.cpp

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/***************************************************************************
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qgswfssourceselect.cpp
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-------------------
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begin : August 25, 2006
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copyright : (C) 2006 by Marco Hugentobler
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email : marco dot hugentobler at karto dot baug dot ethz dot ch
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgisiface.h"
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#include "qgswfssourceselect.h"
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#include "../../providers/wfs/qgswfsprovider.h"
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#include "qgsnewhttpconnection.h"
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#include "qgslayerprojectionselector.h"
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#include <QListWidgetItem>
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#include <QMessageBox>
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#include <QSettings>
26+
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QgsWFSSourceSelect::QgsWFSSourceSelect(QWidget* parent, QgisIface* iface): QDialog(parent), mIface(iface)
28+
{
29+
setupUi(this);
30+
31+
connect(btnCancel, SIGNAL(clicked()), this, SLOT(reject()));
32+
connect(btnAdd, SIGNAL(clicked()), this, SLOT(addLayer()));
33+
connect(btnNew, SIGNAL(clicked()), this, SLOT(addEntryToServerList()));
34+
connect(btnEdit, SIGNAL(clicked()), this, SLOT(modifyEntryOfServerList()));
35+
connect(btnDelete, SIGNAL(clicked()), this, SLOT(deleteEntryOfServerList()));
36+
connect(btnConnect,SIGNAL(clicked()), this, SLOT(connectToServer()));
37+
connect(btnChangeSpatialRefSys, SIGNAL(clicked()), this, SLOT(changeCRS()));
38+
connect(lstWidget, SIGNAL(currentRowChanged(int)), this, SLOT(changeCRSFilter()));
39+
populateConnectionList();
40+
41+
mProjectionSelector = new QgsLayerProjectionSelector(this);
42+
}
43+
44+
QgsWFSSourceSelect::~QgsWFSSourceSelect()
45+
{
46+
delete mProjectionSelector;
47+
}
48+
49+
void QgsWFSSourceSelect::populateConnectionList()
50+
{
51+
QSettings settings;
52+
QStringList keys = settings.subkeyList("/Qgis/connections-wfs");
53+
QStringList::Iterator it = keys.begin();
54+
cmbConnections->clear();
55+
while (it != keys.end())
56+
{
57+
cmbConnections->insertItem(*it);
58+
++it;
59+
}
60+
61+
if (keys.begin() != keys.end())
62+
{
63+
// Connections available - enable various buttons
64+
btnConnect->setEnabled(TRUE);
65+
btnEdit->setEnabled(TRUE);
66+
btnDelete->setEnabled(TRUE);
67+
}
68+
69+
else
70+
{
71+
// No connections available - disable various buttons
72+
btnConnect->setEnabled(FALSE);
73+
btnEdit->setEnabled(FALSE);
74+
btnDelete->setEnabled(FALSE);
75+
}
76+
}
77+
78+
void QgsWFSSourceSelect::addEntryToServerList()
79+
{
80+
QgsNewHttpConnection *nc = new QgsNewHttpConnection(this, "/Qgis/connections-wfs/");
81+
82+
if (nc->exec())
83+
{
84+
populateConnectionList();
85+
}
86+
}
87+
88+
void QgsWFSSourceSelect::modifyEntryOfServerList()
89+
{
90+
QgsNewHttpConnection nc(0, "/Qgis/connections-wfs/", cmbConnections->currentText());
91+
92+
if (nc.exec())
93+
{
94+
nc.saveConnection();
95+
}
96+
populateConnectionList();
97+
}
98+
99+
void QgsWFSSourceSelect::deleteEntryOfServerList()
100+
{
101+
QSettings settings;
102+
QString key = "/Qgis/connections-wfs/" + cmbConnections->currentText();
103+
QString msg =
104+
tr("Are you sure you want to remove the ") + cmbConnections->currentText() + tr(" connection and all associated settings?");
105+
int result = QMessageBox::information(this, tr("Confirm Delete"), msg, tr("Yes"), tr("No"));
106+
if (result == 0)
107+
{
108+
settings.remove(key);
109+
cmbConnections->removeItem(cmbConnections->currentItem());
110+
}
111+
}
112+
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void QgsWFSSourceSelect::connectToServer()
114+
{
115+
//find out the server URL
116+
QSettings settings;
117+
QString key = "/Qgis/connections-wfs/" + cmbConnections->currentText() + "/url";
118+
mUri = settings.value(key).toString();
119+
qWarning("url is: " + mUri);
120+
121+
//make a GetCapabilities request
122+
std::list<QString> typenames;
123+
std::list< std::list<QString> > crsList;
124+
if(QgsWFSProvider::getCapabilities(mUri, QgsWFSProvider::GET, typenames, crsList) != 0)
125+
{
126+
qWarning("error during GetCapabilities request");
127+
}
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129+
//insert the available CRS into mAvailableCRS
130+
mAvailableCRS.clear();
131+
std::list<QString>::const_iterator typeNameIter;
132+
std::list< std::list<QString> >::const_iterator crsIter;
133+
for(typeNameIter = typenames.begin(), crsIter = crsList.begin(); typeNameIter != typenames.end(); ++typeNameIter, ++crsIter)
134+
{
135+
std::list<QString> currentCRSList;
136+
for(std::list<QString>::const_iterator it = crsIter->begin(); it != crsIter->end(); ++it)
137+
{
138+
currentCRSList.push_back(*it);
139+
}
140+
mAvailableCRS.insert(std::make_pair(*typeNameIter, currentCRSList));
141+
}
142+
143+
//insert the typenames into the list view
144+
lstWidget->clear();
145+
for(std::list<QString>::const_iterator it = typenames.begin(); it != typenames.end(); ++it)
146+
{
147+
lstWidget->addItem(*it);
148+
}
149+
150+
if(typenames.size() > 0)
151+
{
152+
btnAdd->setEnabled(true);
153+
lstWidget->setCurrentRow(0);
154+
btnChangeSpatialRefSys->setEnabled(true);
155+
}
156+
else
157+
{
158+
btnAdd->setEnabled(false);
159+
}
160+
161+
162+
}
163+
164+
void QgsWFSSourceSelect::addLayer()
165+
{
166+
//get selected entry in lstWidget
167+
QListWidgetItem* cItem = lstWidget->currentItem();
168+
if(!cItem)
169+
{
170+
return;
171+
}
172+
QString typeName = cItem->text();
173+
qWarning(mUri + "SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=" + typeName);
174+
175+
//get CRS
176+
QString crsString;
177+
if(mProjectionSelector)
178+
{
179+
long epsgNr = mProjectionSelector->getCurrentEpsg();
180+
if(epsgNr != 0)
181+
{
182+
crsString = "&SRSNAME=EPSG:"+QString::number(epsgNr);
183+
}
184+
}
185+
//add a wfs layer to the map
186+
if(mIface)
187+
{
188+
qWarning(mUri + "SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=" + typeName + crsString);
189+
mIface->addVectorLayer(mUri + "SERVICE=WFS&VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=" + typeName + crsString, typeName, "WFS");
190+
}
191+
accept();
192+
}
193+
194+
void QgsWFSSourceSelect::changeCRS()
195+
{
196+
if(mProjectionSelector->exec())
197+
{
198+
199+
}
200+
}
201+
202+
void QgsWFSSourceSelect::changeCRSFilter()
203+
{
204+
//evaluate currently selected typename and set the CRS filter in mProjectionSelector
205+
QListWidgetItem* currentListItem = lstWidget->currentItem();
206+
if(currentListItem)
207+
{
208+
QString currentTypename = currentListItem->text();
209+
qWarning("the current typename is: " + currentTypename);
210+
211+
std::map<QString, std::list<QString> >::const_iterator crsIterator = mAvailableCRS.find(currentTypename);
212+
if(crsIterator != mAvailableCRS.end())
213+
{
214+
std::list<QString> crsList = crsIterator->second;
215+
QSet<QString> crsSet;
216+
for(std::list<QString>::const_iterator it = crsList.begin(); it != crsList.end(); ++it)
217+
{
218+
qWarning("inserting " + *it);
219+
crsSet.insert(*it);
220+
}
221+
if(mProjectionSelector)
222+
{
223+
mProjectionSelector->setOgcWmsCrsFilter(crsSet);
224+
}
225+
}
226+
}
227+
}

‎src/plugins/wfs/qgswfssourceselect.h

Lines changed: 54 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,54 @@
1+
/***************************************************************************
2+
qgswfssourceselect.h
3+
-------------------
4+
begin : August 25, 2006
5+
copyright : (C) 2006 by Marco Hugentobler
6+
email : marco dot hugentobler at karto dot baug dot ethz dot ch
7+
***************************************************************************/
8+
9+
/***************************************************************************
10+
* *
11+
* This program is free software; you can redistribute it and/or modify *
12+
* it under the terms of the GNU General Public License as published by *
13+
* the Free Software Foundation; either version 2 of the License, or *
14+
* (at your option) any later version. *
15+
* *
16+
***************************************************************************/
17+
18+
#ifndef QGSWFSSOURCESELECT_H
19+
#define QGSWFSSOURCESELECT_H
20+
21+
#include "ui_qgswfssourceselectbase.h"
22+
23+
class QgisIface;
24+
class QgsLayerProjectionSelector;
25+
26+
class QgsWFSSourceSelect: public QDialog, private Ui::QgsWFSSourceSelectBase
27+
{
28+
Q_OBJECT
29+
public:
30+
QgsWFSSourceSelect(QWidget* parent, QgisIface* iface);
31+
~QgsWFSSourceSelect();
32+
33+
private:
34+
QgsWFSSourceSelect(); //default constructor is forbidden
35+
QgisIface* mIface; //pointer to the QGIS interface object (needed to add WFS layers)
36+
QString mUri; //uri of the currently connected server
37+
QgsLayerProjectionSelector* mProjectionSelector;
38+
/**Stores the available CRS for a server connections.
39+
The first string is the typename, the corresponding list
40+
stores the CRS for the typename in the form 'EPSG:XXXX'*/
41+
std::map<QString, std::list<QString> > mAvailableCRS;
42+
void populateConnectionList();
43+
44+
private slots:
45+
void addEntryToServerList();
46+
void modifyEntryOfServerList();
47+
void deleteEntryOfServerList();
48+
void connectToServer();
49+
void addLayer();
50+
void changeCRS();
51+
void changeCRSFilter();
52+
};
53+
54+
#endif

‎src/plugins/wfs/qgswfssourceselectbase.ui

Lines changed: 226 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,226 @@
1+
<ui version="4.0" >
2+
<author></author>
3+
<comment></comment>
4+
<exportmacro></exportmacro>
5+
<class>QgsWFSSourceSelectBase</class>
6+
<widget class="QDialog" name="QgsWFSSourceSelectBase" >
7+
<property name="geometry" >
8+
<rect>
9+
<x>0</x>
10+
<y>0</y>
11+
<width>577</width>
12+
<height>444</height>
13+
</rect>
14+
</property>
15+
<property name="windowTitle" >
16+
<string>Dialog</string>
17+
</property>
18+
<layout class="QGridLayout" >
19+
<property name="margin" >
20+
<number>9</number>
21+
</property>
22+
<property name="spacing" >
23+
<number>6</number>
24+
</property>
25+
<item row="0" column="0" >
26+
<widget class="QGroupBox" name="GroupBox1" >
27+
<property name="title" >
28+
<string>Server Connections</string>
29+
</property>
30+
<layout class="QGridLayout" >
31+
<property name="margin" >
32+
<number>9</number>
33+
</property>
34+
<property name="spacing" >
35+
<number>6</number>
36+
</property>
37+
<item row="1" column="1" >
38+
<widget class="QPushButton" name="btnNew" >
39+
<property name="text" >
40+
<string>&amp;New</string>
41+
</property>
42+
</widget>
43+
</item>
44+
<item row="1" column="3" >
45+
<widget class="QPushButton" name="btnDelete" >
46+
<property name="enabled" >
47+
<bool>false</bool>
48+
</property>
49+
<property name="text" >
50+
<string>Delete</string>
51+
</property>
52+
</widget>
53+
</item>
54+
<item row="1" column="2" >
55+
<widget class="QPushButton" name="btnEdit" >
56+
<property name="enabled" >
57+
<bool>false</bool>
58+
</property>
59+
<property name="text" >
60+
<string>Edit</string>
61+
</property>
62+
</widget>
63+
</item>
64+
<item row="1" column="4" >
65+
<spacer>
66+
<property name="orientation" >
67+
<enum>Qt::Horizontal</enum>
68+
</property>
69+
<property name="sizeType" >
70+
<enum>QSizePolicy::Expanding</enum>
71+
</property>
72+
<property name="sizeHint" >
73+
<size>
74+
<width>171</width>
75+
<height>30</height>
76+
</size>
77+
</property>
78+
</spacer>
79+
</item>
80+
<item row="1" column="0" >
81+
<widget class="QPushButton" name="btnConnect" >
82+
<property name="enabled" >
83+
<bool>false</bool>
84+
</property>
85+
<property name="text" >
86+
<string>C&amp;onnect</string>
87+
</property>
88+
</widget>
89+
</item>
90+
<item row="0" column="0" colspan="5" >
91+
<widget class="QComboBox" name="cmbConnections" />
92+
</item>
93+
</layout>
94+
</widget>
95+
</item>
96+
<item row="1" column="0" >
97+
<widget class="QListWidget" name="lstWidget" />
98+
</item>
99+
<item row="3" column="0" >
100+
<layout class="QHBoxLayout" >
101+
<property name="margin" >
102+
<number>0</number>
103+
</property>
104+
<property name="spacing" >
105+
<number>6</number>
106+
</property>
107+
<item>
108+
<widget class="QPushButton" name="btnHelp" >
109+
<property name="enabled" >
110+
<bool>true</bool>
111+
</property>
112+
<property name="text" >
113+
<string>Help</string>
114+
</property>
115+
<property name="shortcut" >
116+
<string>F1</string>
117+
</property>
118+
<property name="autoDefault" >
119+
<bool>true</bool>
120+
</property>
121+
</widget>
122+
</item>
123+
<item>
124+
<spacer>
125+
<property name="orientation" >
126+
<enum>Qt::Horizontal</enum>
127+
</property>
128+
<property name="sizeType" >
129+
<enum>QSizePolicy::Expanding</enum>
130+
</property>
131+
<property name="sizeHint" >
132+
<size>
133+
<width>111</width>
134+
<height>31</height>
135+
</size>
136+
</property>
137+
</spacer>
138+
</item>
139+
<item>
140+
<widget class="QPushButton" name="btnAdd" >
141+
<property name="enabled" >
142+
<bool>false</bool>
143+
</property>
144+
<property name="text" >
145+
<string>&amp;Add</string>
146+
</property>
147+
<property name="shortcut" >
148+
<string>Alt+A</string>
149+
</property>
150+
<property name="autoDefault" >
151+
<bool>true</bool>
152+
</property>
153+
<property name="default" >
154+
<bool>true</bool>
155+
</property>
156+
</widget>
157+
</item>
158+
<item>
159+
<widget class="QPushButton" name="btnCancel" >
160+
<property name="text" >
161+
<string>C&amp;lose</string>
162+
</property>
163+
<property name="shortcut" >
164+
<string>Alt+L</string>
165+
</property>
166+
<property name="autoDefault" >
167+
<bool>true</bool>
168+
</property>
169+
</widget>
170+
</item>
171+
</layout>
172+
</item>
173+
<item row="2" column="0" >
174+
<widget class="QGroupBox" name="gbCRS" >
175+
<property name="title" >
176+
<string>Coordinate Reference System</string>
177+
</property>
178+
<layout class="QHBoxLayout" >
179+
<property name="margin" >
180+
<number>9</number>
181+
</property>
182+
<property name="spacing" >
183+
<number>6</number>
184+
</property>
185+
<item>
186+
<widget class="QLabel" name="labelCoordRefSys" >
187+
<property name="text" >
188+
<string/>
189+
</property>
190+
</widget>
191+
</item>
192+
<item>
193+
<spacer>
194+
<property name="orientation" >
195+
<enum>Qt::Horizontal</enum>
196+
</property>
197+
<property name="sizeType" >
198+
<enum>QSizePolicy::Expanding</enum>
199+
</property>
200+
<property name="sizeHint" >
201+
<size>
202+
<width>441</width>
203+
<height>23</height>
204+
</size>
205+
</property>
206+
</spacer>
207+
</item>
208+
<item>
209+
<widget class="QPushButton" name="btnChangeSpatialRefSys" >
210+
<property name="enabled" >
211+
<bool>false</bool>
212+
</property>
213+
<property name="text" >
214+
<string>Change ...</string>
215+
</property>
216+
</widget>
217+
</item>
218+
</layout>
219+
</widget>
220+
</item>
221+
</layout>
222+
</widget>
223+
<pixmapfunction></pixmapfunction>
224+
<resources/>
225+
<connections/>
226+
</ui>

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