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linevectorlayerwidget.cpp
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/
linevectorlayerwidget.cpp
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/***************************************************************************
* Copyright (C) 2010 by Sergey Yakushev *
* yakushevs@list.ru *
* *
* This is a plugin generated from the QGIS plugin template *
* *
* 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 "linevectorlayerwidget.h"
#include "linevectorlayersettings.h"
//qt includes
#include <qgscontexthelp.h>
#include <qlabel.h>
#include <qcombobox.h>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <qdialogbuttonbox.h>
#include <qtabwidget.h>
#include <qspinbox.h>
#include <qmessagebox.h>
#include <qlineedit.h>
// Qgis includes
#include "qgsfield.h"
#include "qgsmaplayerregistry.h"
#include "qgsvectordataprovider.h"
#include "qgsvectorlayer.h"
//standard includes
RgLineVectorLayerSettingsWidget::RgLineVectorLayerSettingsWidget( RgLineVectorLayerSettings *s, QWidget* parent )
: QWidget( parent )
{
// create base widgets;
QTabWidget *tab = new QTabWidget( this );
QVBoxLayout *v = new QVBoxLayout( this );
v->addWidget( tab );
// transportation layer
QFrame *frame = new QFrame( this );
tab->addTab( frame, tr( "Transportation layer" ) );
v = new QVBoxLayout( frame );
QLabel *l = new QLabel( tr( "Layer" ), frame );
mcbLayers = new QComboBox( frame );
QHBoxLayout *h = new QHBoxLayout( this );
h->addWidget( l );
h->addWidget( mcbLayers );
v->addLayout( h );
h = new QHBoxLayout();
l = new QLabel( tr( "Direction field" ), frame );
mcbDirection = new QComboBox( frame );
h->addWidget( l );
h->addWidget( mcbDirection );
v->addLayout( h );
h = new QHBoxLayout();
h->addWidget( new QLabel( tr( "Value for forward direction" ), frame ) );
mleFirstPointToLastPointDirection = new QLineEdit( s->mFirstPointToLastPointDirectionVal, frame );
h->addWidget( mleFirstPointToLastPointDirection );
v->addLayout( h );
h = new QHBoxLayout();
h->addWidget( new QLabel( tr( "Value for reverse direction" ), frame ) );
mleLastPointToFirstPointDirection = new QLineEdit( s->mLastPointToFirstPointDirectionVal, frame );
h->addWidget( mleLastPointToFirstPointDirection );
v->addLayout( h );
h = new QHBoxLayout();
h->addWidget( new QLabel( tr( "Value two-way direction" ), frame ) );
mleBothDirection = new QLineEdit( s->mBothDirectionVal, frame );
h->addWidget( mleBothDirection );
v->addLayout( h );
h = new QHBoxLayout();
l = new QLabel( tr( "Speed field" ), frame );
mcbSpeed = new QComboBox( frame );
h->addWidget( l );
h->addWidget( mcbSpeed );
mcbUnitOfSpeed = new QComboBox( this );
h->addWidget( mcbUnitOfSpeed );
mcbUnitOfSpeed->insertItem( 0, tr( "km/h" ) );
mcbUnitOfSpeed->insertItem( 0, tr( "m/s" ) );
v->addLayout( h );
frame = new QFrame( tab );
tab->addTab( frame, tr( "Default settings" ) );
v = new QVBoxLayout( frame );
h = new QHBoxLayout();
l = new QLabel( tr( "Direction" ), frame );
mcbDirectionDefault = new QComboBox( frame );
mcbDirectionDefault->insertItem( 0, tr( "Two-way direction" ) );
mcbDirectionDefault->insertItem( 1, tr( "Forward direction" ) );
mcbDirectionDefault->insertItem( 2, tr( "Reverse direction" ) );
connect( mcbLayers, SIGNAL( currentIndexChanged( int ) ), this, SLOT( on_mcbLayers_selectItem() ) );
h->addWidget( l );
h->addWidget( mcbDirectionDefault );
v->addLayout( h );
h = new QHBoxLayout( frame );
l = new QLabel( tr( "Cost" ), frame );
h->addWidget( l );
l = new QLabel( tr( "Line lengths" ), frame );
h->addWidget( l );
v->addLayout( h );
h = new QHBoxLayout( frame );
l = new QLabel( tr( "Speed" ), frame );
msbSpeedDefault = new QSpinBox( frame );
msbSpeedDefault->setMinimum( 1 );
msbSpeedDefault->setMaximum( 10000000 );
h->addWidget( l );
h->addWidget( msbSpeedDefault );
v->addLayout( h );
// fill list of layers
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() );
}
//sets current settings
msbSpeedDefault->setValue( static_cast<int>( s->mDefaultSpeed ) );
int idx = mcbLayers->findText( s->mLayer );
if ( idx != -1 )
{
mcbLayers->setCurrentIndex( idx );
}
idx = mcbDirection->findText( s->mDirection );
if ( idx != -1 )
mcbDirection->setCurrentIndex( idx );
idx = mcbSpeed->findText( s->mSpeed );
if ( idx != -1 )
mcbSpeed->setCurrentIndex( idx );
switch ( s->mDefaultDirection )
{
case RgLineVectorLayerSettings::Both:
mcbDirectionDefault->setCurrentIndex( 0 );
break;
case RgLineVectorLayerSettings::FirstPointToLastPoint:
mcbDirectionDefault->setCurrentIndex( 1 );
break;
case RgLineVectorLayerSettings::LastPointToFirstPoint:
mcbDirectionDefault->setCurrentIndex( 2 );
break;
}
if ( s->mSpeedUnitName == "km/h" )
mcbUnitOfSpeed->setCurrentIndex( 1 );
else if ( s->mSpeedUnitName == "m/s" )
mcbUnitOfSpeed->setCurrentIndex( 0 );
} // RgLineVectorLayerSettingsWidget::RgLineVectorLayerSettingsWidget()
QgsVectorLayer* RgLineVectorLayerSettingsWidget::selectedLayer()
{
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;
if ( vl->name() == mcbLayers->currentText() )
return vl;
}
return NULL;
} // RgLineVectorLayerSettingsWidget::setlectedLayer()
void RgLineVectorLayerSettingsWidget::on_mcbLayers_selectItem()
{
mcbDirection->clear();
mcbSpeed->clear();
mcbDirection->insertItem( 0, tr( "Always use default" ) );
mcbSpeed->insertItem( 0, tr( "Always use default" ) );
QgsVectorLayer* vl = selectedLayer();
if ( !vl )
return;
QgsVectorDataProvider* provider = vl->dataProvider();
if ( !provider )
return;
const QgsFieldMap& fields = provider->fields();
QgsFieldMap::const_iterator it;
for ( it = fields.constBegin(); it != fields.constEnd(); ++it )
{
QgsField currentField = it.value();
QVariant currentType = currentField.type();
if ( currentType == QVariant::Int || currentType == QVariant::String )
{
mcbDirection->insertItem( 1, currentField.name() );
}
if ( currentType == QVariant::Int || currentType == QVariant::Double )
{
mcbSpeed->insertItem( 1, currentField.name() );
}
}
} // RgDSettingsDlg::on_mcbLayers_selectItem()