Road-Graph plugin added

git-svn-id: http://svn.osgeo.org/qgis/trunk@15068 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/plugins/CMakeLists.txt

@@ -14,6 +14,7 @@ SUBDIRS (copyright_label
   point_displacement_renderer
   spatialquery
   sqlanywhere
+  roadgraph
   )
 
 IF (WITH_SPATIALITE)

src/plugins/roadgraph/CMakeLists.txt

@@ -0,0 +1,57 @@
+
+########################################################
+# Files
+
+SET (VRP_SRCS
+  roadgraphplugin.cpp
+  settingsdlg.cpp
+  units.cpp
+  utils.cpp
+  shortestpathwidget.cpp
+  linevectorlayersettings.cpp
+  linevectorlayerwidget.cpp
+  linevectorlayerdirector.cpp
+  simplegraphbuilder.cpp
+  exportdlg.cpp
+)
+
+#SET ([pluginlcasename]_UIS [pluginlcasename]guibase.ui)
+
+SET (VRP_MOC_HDRS
+  roadgraphplugin.h
+  settingsdlg.h
+  shortestpathwidget.h
+  linevectorlayerwidget.h
+  exportdlg.h
+)
+SET (VRP_RCCS  roadgraph.qrc)
+
+INCLUDE_DIRECTORIES(
+  ${CMAKE_CURRENT_BINARY_DIR}
+  ../../core 
+  ../../gui
+  ..
+  )
+########################################################
+# Build
+
+QT4_WRAP_CPP (VRP_MOC_SRCS  ${VRP_MOC_HDRS})
+
+QT4_ADD_RESOURCES(VRP_RCC_SRCS ${VRP_RCCS})
+
+ADD_LIBRARY (roadgraphplugin MODULE ${VRP_SRCS} ${VRP_MOC_SRCS} ${VRP_RCC_SRCS})
+
+
+TARGET_LINK_LIBRARIES(roadgraphplugin
+  qgis_core
+  qgis_gui
+)
+
+
+########################################################
+# Install
+
+INSTALL(TARGETS roadgraphplugin
+  RUNTIME DESTINATION ${QGIS_PLUGIN_DIR}
+  LIBRARY DESTINATION ${QGIS_PLUGIN_DIR})
+

src/plugins/roadgraph/exportdlg.cpp

@@ -0,0 +1,112 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Sergey Yakushev                                 *
+ *   yakushevs@list.ru                                                     *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ ***************************************************************************/
+#include "exportdlg.h"
+#include <qgscontexthelp.h>
+
+//qt includes
+#include <qlabel.h>
+#include <qcombobox.h>
+#include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <qdialogbuttonbox.h>
+#include <qmessagebox.h>
+
+
+// Qgis includes
+#include <qgsvectorlayer.h>
+#include <qgsmaplayerregistry.h>
+#include <qgsproviderregistry.h>
+#include <qgsvectordataprovider.h>
+
+//standard includes
+
+RgExportDlg::RgExportDlg( QWidget* parent, Qt::WFlags fl )
+    : QDialog( parent, fl )
+{
+  // create base widgets;
+  setWindowTitle( tr("Export feature") );
+  QVBoxLayout *v = new QVBoxLayout( this );
+
+  QHBoxLayout *h = new QHBoxLayout();
+  QLabel *l = new QLabel( tr("Select destination layer:"), this);
+  h->addWidget(l);
+  mcbLayers = new QComboBox( this );
+  h->addWidget(mcbLayers);
+  v->addLayout(h);
+
+  QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, this);
+  connect(bb, SIGNAL(accepted()), this, SLOT(on_buttonBox_accepted()) );
+  connect(bb, SIGNAL(rejected()), this, SLOT(on_buttonBox_rejected()) );
+  v->addWidget(bb);
+
+  //fill list of layers
+  mcbLayers->insertItem( 0, tr("new temporary layer"), QVariant("-1") );
+
+  QMap<QString, QgsMapLayer*> mapLayers = QgsMapLayerRegistry::instance()->mapLayers();
+  QMap<QString, QgsMapLayer*>::iterator layer_it = mapLayers.begin();
+
+  for ( ; layer_it != mapLayers.end(); ++layer_it )
+  {
+    QgsVectorLayer* vl = dynamic_cast<QgsVectorLayer*>( layer_it.value() );
+    if ( !vl )
+      continue;
+    if ( vl->geometryType() != QGis::Line )
+      continue;
+    mcbLayers->insertItem( 0, vl->name(), QVariant( vl->getLayerID() ) );
+  }
+
+} // RgSettingsDlg::RgSettingsDlg()
+
+RgExportDlg::~RgExportDlg()
+{
+}
+
+QgsVectorLayer* RgExportDlg::mapLayer() const
+{
+  QgsVectorLayer* myLayer = NULL;
+  QString layerId = mcbLayers->itemData( mcbLayers->currentIndex() ).toString();
+
+  if ( layerId == QString("-1") )
+  {
+    // create a temporary layer
+    myLayer = new QgsVectorLayer( "LineString", "shortest path", "memory" );
+
+    QgsVectorDataProvider *prov = myLayer->dataProvider();
+    if ( prov == NULL)
+     return NULL;
+
+    QList<QgsField> attrList;
+    attrList.append( QgsField("one", QVariant::Int) );
+    prov->addAttributes( attrList );
+    QgsMapLayerRegistry::instance()->addMapLayer( myLayer );  
+
+  }else
+  {
+    // retrun selected layer
+    myLayer = dynamic_cast<QgsVectorLayer*>( QgsMapLayerRegistry::instance()->mapLayer( layerId ) );
+  }
+
+  return myLayer;
+} // QgsVectorLayer* RgExportDlg::vectorLayer() const
+
+void RgExportDlg::on_buttonBox_accepted()
+{  
+   accept();
+} // void RgExportDlg::on_buttonBox_accepted()
+
+void RgExportDlg::on_buttonBox_rejected()
+{
+  reject();
+}
+
+void RgExportDlg::on_buttonBox_helpRequested()
+{
+  QgsContextHelp::run( context_id );
+}

src/plugins/roadgraph/exportdlg.h

@@ -0,0 +1,54 @@
+/***************************************************************************
+  exportdlg.h
+  --------------------------------------
+  Date                 : 2010-11-29
+  Copyright            : (C) 2010 by Yakushev Sergey
+  Email                : YakushevS <at> list.ru
+****************************************************************************
+*                                                                          *
+*   This program is free software; you can redistribute it and/or modify   *
+*   it under the terms of the GNU General Public License as published by   *
+*   the Free Software Foundation; either version 2 of the License, or      *
+*   (at your option) any later version.                                    *
+*                                                                          *
+***************************************************************************/          
+#ifndef ROADGRAPH_EXPORTDLG_H
+#define ROADGRAPH_EXPORTDLG_H
+
+#include <QDialog>
+
+// forward declaration QT-classes
+class QComboBox;
+
+// forward declaration Qgis-classes
+
+//forward declaration RoadGraph plugins classes
+class QgsVectorLayer;
+
+/**
+@author Sergey Yakushev
+*/
+/**
+* \class RgSettingsDlg
+* \brief implement of export dialog
+*/
+class RgExportDlg : public QDialog
+{
+    Q_OBJECT
+public:
+  RgExportDlg( QWidget* parent = 0, Qt::WFlags fl = 0 );
+  ~RgExportDlg();
+public:
+  QgsVectorLayer* mapLayer() const;
+private:
+  static const int context_id = 0;
+
+private slots:
+  void on_buttonBox_accepted();
+  void on_buttonBox_rejected();
+  void on_buttonBox_helpRequested();
+
+private:
+  QComboBox *mcbLayers;
+};
+#endif

src/plugins/roadgraph/graphbuilder.h

@@ -0,0 +1,69 @@
+/***************************************************************************
+  graphbuilder.h
+  --------------------------------------
+  Date                 : 2010-10-22
+  Copyright            : (C) 2010 by Yakushev Sergey
+  Email                : YakushevS <at> list.ru
+****************************************************************************
+*                                                                          *
+*   This program is free software; you can redistribute it and/or modify   *
+*   it under the terms of the GNU General Public License as published by   *
+*   the Free Software Foundation; either version 2 of the License, or      *
+*   (at your option) any later version.                                    *
+*                                                                          *
+***************************************************************************/
+#ifndef ROADGRAPH_GRAPHBUILDER
+#define ROADGRAPH_GRAPHBUILDER
+
+#include "utils.h"
+
+//QT4 includes
+
+//QGIS includes
+#include <qgspoint.h>
+#include <qgscoordinatereferencesystem.h>
+
+//forward declarations
+
+/**
+* \class RgGraphDirector
+* \brief Determine making the graph
+* contained the settings
+*/
+class RgGraphBuilder
+{
+public:
+  //! Destructor
+  virtual ~RgGraphBuilder()
+  {};
+  /**
+   * set source CRS
+   */
+  virtual void setSourceCrs( const QgsCoordinateReferenceSystem& crs ) = 0;
+
+  /**
+   * set destionation CRS
+   */
+  virtual void setDestinationCrs( const QgsCoordinateReferenceSystem& crs ) = 0;
+
+  /**
+   * add vertex
+   */
+  virtual void addVertex( const QgsPoint& pt ) = 0;
+
+  /**
+   * add arc
+   */
+  virtual void addArc( const QgsPoint& pt1, const QgsPoint& pt2, double speed ) = 0;
+
+  /**
+   * tie point
+   * @param pt maps point
+   * @param pt ok = false if tiePoint failed.
+   * @return Graph vertex corresponding pt.
+   * @note: graph can be modified
+   */
+  virtual QgsPoint tiePoint( const QgsPoint &pt, bool &ok ) = 0;
+
+};
+#endif //GRAPHBUILDER

src/plugins/roadgraph/graphdirector.h

@@ -0,0 +1,53 @@
+/***************************************************************************
+  graphdirector.h
+  --------------------------------------
+  Date                 : 2010-10-18
+  Copyright            : (C) 2010 by Yakushev Sergey
+  Email                : YakushevS <at> list.ru
+****************************************************************************
+*                                                                          *
+*   This program is free software; you can redistribute it and/or modify   *
+*   it under the terms of the GNU General Public License as published by   *
+*   the Free Software Foundation; either version 2 of the License, or      *
+*   (at your option) any later version.                                    *
+*                                                                          *
+***************************************************************************/
+#ifndef ROADGRAPH_GRAPHDIRECTOR
+#define ROADGRAPH_GRAPHDIRECTOR
+
+//QT4 includes
+
+//QGIS includes
+#include <qgsrectangle.h>
+
+//forward declarations
+class RgSettings;
+class RgGraphBuilder;
+
+/**
+* \class RgGraphDirector
+* \brief Determine making the graph
+* contained the settings
+*/
+class RgGraphDirector
+{
+public:
+  //! Destructor
+  virtual ~RgGraphDirector() { };
+
+  /**
+   * get adjacency matrix
+   */
+  virtual void makeGraph( RgGraphBuilder * ) const = 0;
+
+  /**
+   * return pointer to my Settings
+   */
+  virtual RgSettings* settings() = 0;
+
+  /**
+   * return Director name
+   */
+  virtual QString name() const = 0;
+};
+#endif //GRAPHDIRECTOR