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qgsidentifyresultsdialog.cpp
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qgsidentifyresultsdialog.cpp
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/***************************************************************************
qgsidentifyresults.cpp - description
-------------------
begin : Fri Oct 25 2002
copyright : (C) 2002 by Gary E.Sherman
email : sherman at mrcc dot com
Romans 3:23=>Romans 6:23=>Romans 5:8=>Romans 10:9,10=>Romans 12
***************************************************************************/
/***************************************************************************
* *
* 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 "qgsidentifyresultsdialog.h"
#include "qgsapplication.h"
#include "qgisapp.h"
#include "qgsmaplayer.h"
#include "qgsvectorlayer.h"
#include "qgsrasterlayer.h"
#include "qgshighlight.h"
#include "qgsgeometry.h"
#include "qgsattributedialog.h"
#include "qgsmapcanvas.h"
#include "qgsattributeaction.h"
#include "qgsfeatureaction.h"
#include "qgslogger.h"
#include "qgsnetworkaccessmanager.h"
#include "qgsproject.h"
#include "qgsmaplayeractionregistry.h"
#include <QCloseEvent>
#include <QLabel>
#include <QAction>
#include <QTreeWidgetItem>
#include <QPixmap>
#include <QSettings>
#include <QMenu>
#include <QClipboard>
#include <QDockWidget>
#include <QMenuBar>
#include <QPushButton>
#include <QWebView>
#include <QPrinter>
#include <QPrintDialog>
#include <QDesktopServices>
#include <QMessageBox>
#include <QComboBox>
#include <QWebFrame>
QgsIdentifyResultsWebView::QgsIdentifyResultsWebView( QWidget *parent ) : QWebView( parent )
{
setSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::Minimum );
page()->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
// page()->setLinkDelegationPolicy( QWebPage::DelegateAllLinks );
page()->setLinkDelegationPolicy( QWebPage::DontDelegateLinks );
settings()->setAttribute( QWebSettings::LocalContentCanAccessRemoteUrls, true );
settings()->setAttribute( QWebSettings::JavascriptCanOpenWindows, true );
#ifdef QGISDEBUG
settings()->setAttribute( QWebSettings::DeveloperExtrasEnabled, true );
#endif
}
void QgsIdentifyResultsWebView::print( void )
{
QPrinter printer;
QPrintDialog *dialog = new QPrintDialog( &printer );
if ( dialog->exec() == QDialog::Accepted )
{
QWebView::print( &printer );
}
}
void QgsIdentifyResultsWebView::contextMenuEvent( QContextMenuEvent *e )
{
QMenu *menu = page()->createStandardContextMenu();
if ( !menu )
return;
QAction *action = new QAction( tr( "Print" ), this );
connect( action, SIGNAL( triggered() ), this, SLOT( print() ) );
menu->addAction( action );
menu->exec( e->globalPos() );
delete menu;
}
QWebView *QgsIdentifyResultsWebView::createWindow( QWebPage::WebWindowType type )
{
QDialog *d = new QDialog( this );
QLayout *l = new QVBoxLayout( d );
QWebView *wv = new QWebView( d );
l->addWidget( wv );
wv->setSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::Minimum );
wv->page()->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
wv->settings()->setAttribute( QWebSettings::LocalContentCanAccessRemoteUrls, true );
wv->settings()->setAttribute( QWebSettings::JavascriptCanOpenWindows, true );
#ifdef QGISDEBUG
wv->settings()->setAttribute( QWebSettings::DeveloperExtrasEnabled, true );
#endif
d->setModal( type != QWebPage::WebBrowserWindow );
d->show();
return wv;
}
// QgsIdentifyResultsWebView size:
// ---------------
//
// 1) QTreeWidget is not able to scroll continuously through the content of large widgets
// inserted into items via setItemWidget, it always jumps to the top of next
// item and it is not able to scroll to the bottom of an inserted large
// widget (until the QTreeWidget itself is large enough to show the whole
// inserted widget). => We have to keep the height of QgsIdentifyResultsWebView smaller
// than the height of QTreeWidget so that a user can see it entire, even if
// this height is smaller than QgsIdentifyResultsWebView content (i.e. QgsIdentifyResultsWebView scroolbar
// is added). We make it even a bit smaller so that a user can see a bit of
// context (items above/below) when scrolling which is more pleasant.
//
// 2) contentsSize() is 0,0 until a page is loaded. If there are no external
// resources (like images) used, contentsSize() is available immediately
// after setHtml(), otherwise the contentSize() is 0,0 until the page is
// loaded and contentsSizeChanged () is emitted.
//
// 3) If QgsIdentifyResultsWebView is resized (on page load) after it was inserted into
// QTreeWidget, the row does not reflect that change automaticaly and
// consecutive resize of QTreeWidget will cause to shrink QgsIdentifyResultsWebView to the
// original row height. That is expected, Qt: "setItemWidget() should only
// be used to display static content... => we must not change QgsIdentifyResultsWebView
// size after it was inserted to QTreeWidget
// TODO(?): Sometimes it may happen that if multiple QgsIdentifyResultsWebView are inserted to
// QTreeWidget for the first time, and both share the same external source
// (image) the layout gets somehow confused - wrong positions, overlapped (Qt
// bug?) until next QTreeWidget resize.
// TODO(?): if the results dialog is resized to smaller height, existing
// QgsIdentifyResultsWebView are not (and must not be!) resized and scrolling becomes a bit
// unpleasant until next identify. AFAIK it could only be solved using
// QItemDelegate.
// size hint according to content
QSize QgsIdentifyResultsWebView::sizeHint() const
{
QSize s = page()->mainFrame()->contentsSize();
QgsDebugMsg( QString( "content size: %1 x %2" ).arg( s.width() ).arg( s.height() ) );
int height = s.height();
// parent is qt_scrollarea_viewport
// parent is not available the first time - before results dialog was shown
QWidget *widget = qobject_cast<QWidget *>( parent() );
if ( widget )
{
// It can probably happen that parent is available but it does not have yet
// correct size, see #9377.
int max = widget->size().height() * 0.9;
QgsDebugMsg( QString( "parent widget height = %1 max height = %2" ).arg( widget->size().height() ).arg( max ) );
height = qMin( height, max );
}
else
{
QgsDebugMsg( "parent not available" ) ;
}
// Always keep some minimum size, e.g. if page is not yet loaded
// or parent has wrong size
height = qMax( height, 100 );
s = QSize( size().width(), height );
QgsDebugMsg( QString( "size: %1 x %2" ).arg( s.width() ).arg( s.height() ) );
return s;
}
QgsIdentifyResultsFeatureItem::QgsIdentifyResultsFeatureItem( const QgsFields &fields, const QgsFeature &feature, const QgsCoordinateReferenceSystem &crs, const QStringList & strings )
: QTreeWidgetItem( strings )
, mFields( fields )
, mFeature( feature )
, mCrs( crs )
{
}
void QgsIdentifyResultsWebViewItem::setHtml( const QString &html )
{
mWebView->setHtml( html );
}
void QgsIdentifyResultsWebViewItem::setContent( const QByteArray & data, const QString & mimeType, const QUrl & baseUrl )
{
mWebView->setContent( data, mimeType, baseUrl );
}
QgsIdentifyResultsWebViewItem::QgsIdentifyResultsWebViewItem( QTreeWidget *treeWidget )
{
mWebView = new QgsIdentifyResultsWebView( treeWidget );
mWebView->hide();
setText( 0, tr( "Loading..." ) );
connect( mWebView->page(), SIGNAL( loadFinished( bool ) ), this, SLOT( loadFinished( bool ) ) );
}
void QgsIdentifyResultsWebViewItem::loadFinished( bool ok )
{
QgsDebugMsg( "Entered" );
Q_UNUSED( ok );
mWebView->show();
treeWidget()->setItemWidget( this, 0, mWebView );
// Span columns to save some space, must be after setItemWidget() to take efect.
setFirstColumnSpanned( true );
disconnect( mWebView->page(), SIGNAL( loadFinished( bool ) ), this, SLOT( loadFinished( bool ) ) );
}
// Tree hierarchy
//
// layer [userrole: QgsMapLayer]
// feature: displayfield|displayvalue [userrole: fid, index in feature list]
// derived attributes (if any) [userrole: "derived"]
// name value
// actions (if any) [userrole: "actions"]
// edit [userrole: "edit"]
// action [userrole: "action", idx]
// action [userrole: "map_layer_action", QgsMapLayerAction]
// displayname [userroles: fieldIdx, original name] displayvalue [userrole: original value]
// displayname [userroles: fieldIdx, original name] displayvalue [userrole: original value]
// displayname [userroles: fieldIdx, original name] displayvalue [userrole: original value]
// feature
// derived attributes (if any)
// name value
// actions (if any)
// action
// name value
QgsIdentifyResultsDialog::QgsIdentifyResultsDialog( QgsMapCanvas *canvas, QWidget *parent, Qt::WindowFlags f )
: QDialog( parent, f )
, mActionPopup( 0 )
, mCanvas( canvas )
, mDock( NULL )
{
setupUi( this );
mExpandToolButton->setIcon( QgsApplication::getThemeIcon( "/mActionExpandTree.png" ) );
mCollapseToolButton->setIcon( QgsApplication::getThemeIcon( "/mActionCollapseTree.png" ) );
mExpandNewToolButton->setIcon( QgsApplication::getThemeIcon( "/mActionExpandNewTree.png" ) );
mCopyToolButton->setIcon( QgsApplication::getThemeIcon( "/mActionEditCopy.png" ) );
mPrintToolButton->setIcon( QgsApplication::getThemeIcon( "/mActionFilePrint.png" ) );
mOpenFormButton->setIcon( QgsApplication::getThemeIcon( "/mActionPropertyItem.png" ) );
mOpenFormButton->setDisabled( true );
QSettings mySettings;
mDock = new QDockWidget( tr( "Identify Results" ) , QgisApp::instance() );
mDock->setObjectName( "IdentifyResultsDock" );
mDock->setAllowedAreas( Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea );
mDock->setWidget( this );
if ( !QgisApp::instance()->restoreDockWidget( mDock ) )
QgisApp::instance()->addDockWidget( Qt::LeftDockWidgetArea, mDock );
else
QgisApp::instance()->panelMenu()->addAction( mDock->toggleViewAction() );
mExpandNewToolButton->setChecked( mySettings.value( "/Map/identifyExpand", false ).toBool() );
mCopyToolButton->setEnabled( false );
lstResults->setColumnCount( 2 );
setColumnText( 0, tr( "Feature" ) );
setColumnText( 1, tr( "Value" ) );
int width = mySettings.value( "/Windows/Identify/columnWidth", "0" ).toInt();
if ( width > 0 )
{
lstResults->setColumnWidth( 0, width );
}
width = mySettings.value( "/Windows/Identify/columnWidthTable", "0" ).toInt();
if ( width > 0 )
{
tblResults->setColumnWidth( 0, width );
}
// retrieve mode before on_cmbIdentifyMode_currentIndexChanged resets it on addItem
int identifyMode = mySettings.value( "/Map/identifyMode", 0 ).toInt();
cmbIdentifyMode->addItem( tr( "Current layer" ), 0 );
cmbIdentifyMode->addItem( tr( "Top down, stop at first" ), 1 );
cmbIdentifyMode->addItem( tr( "Top down" ), 2 );
cmbIdentifyMode->addItem( tr( "Layer selection" ), 3 );
cmbIdentifyMode->setCurrentIndex( cmbIdentifyMode->findData( identifyMode ) );
cbxAutoFeatureForm->setChecked( mySettings.value( "/Map/identifyAutoFeatureForm", false ).toBool() );
connect( lstResults, SIGNAL( itemExpanded( QTreeWidgetItem* ) ),
this, SLOT( itemExpanded( QTreeWidgetItem* ) ) );
connect( lstResults, SIGNAL( currentItemChanged( QTreeWidgetItem*, QTreeWidgetItem* ) ),
this, SLOT( handleCurrentItemChanged( QTreeWidgetItem*, QTreeWidgetItem* ) ) );
connect( lstResults, SIGNAL( itemClicked( QTreeWidgetItem*, int ) ),
this, SLOT( itemClicked( QTreeWidgetItem*, int ) ) );
connect( mPrintToolButton, SIGNAL( clicked() ), this, SLOT( printCurrentItem() ) );
connect( mOpenFormButton, SIGNAL( clicked() ), this, SLOT( featureForm() ) );
connect( mClearToolButton, SIGNAL( clicked() ), this, SLOT( clear() ) );
connect( mHelpToolButton, SIGNAL( clicked() ), this, SLOT( helpRequested() ) );
}
QgsIdentifyResultsDialog::~QgsIdentifyResultsDialog()
{
clearHighlights();
QSettings settings;
settings.setValue( "/Windows/Identify/columnWidth", lstResults->columnWidth( 0 ) );
if ( mActionPopup )
delete mActionPopup;
}
QTreeWidgetItem *QgsIdentifyResultsDialog::layerItem( QObject *object )
{
for ( int i = 0; i < lstResults->topLevelItemCount(); i++ )
{
QTreeWidgetItem *item = lstResults->topLevelItem( i );
if ( item->data( 0, Qt::UserRole ).value<QObject *>() == object )
return item;
}
return 0;
}
void QgsIdentifyResultsDialog::addFeature( QgsMapToolIdentify::IdentifyResult result )
{
if ( result.mLayer->type() == QgsMapLayer::VectorLayer )
{
addFeature( qobject_cast<QgsVectorLayer *>( result.mLayer ), result.mFeature, result.mDerivedAttributes );
}
else if ( result.mLayer->type() == QgsMapLayer::RasterLayer )
{
addFeature( qobject_cast<QgsRasterLayer *>( result.mLayer ), result.mLabel, result.mAttributes, result.mDerivedAttributes, result.mFields, result.mFeature, result.mParams );
}
}
void QgsIdentifyResultsDialog::addFeature( QgsVectorLayer *vlayer, const QgsFeature &f, const QMap<QString, QString> &derivedAttributes )
{
QTreeWidgetItem *layItem = layerItem( vlayer );
if ( layItem == 0 )
{
layItem = new QTreeWidgetItem( QStringList() << vlayer->name() );
layItem->setData( 0, Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( vlayer ) ) );
lstResults->addTopLevelItem( layItem );
connect( vlayer, SIGNAL( layerDeleted() ), this, SLOT( layerDestroyed() ) );
connect( vlayer, SIGNAL( layerCrsChanged() ), this, SLOT( layerDestroyed() ) );
connect( vlayer, SIGNAL( featureDeleted( QgsFeatureId ) ), this, SLOT( featureDeleted( QgsFeatureId ) ) );
connect( vlayer, SIGNAL( attributeValueChanged( QgsFeatureId, int, const QVariant & ) ),
this, SLOT( attributeValueChanged( QgsFeatureId, int, const QVariant & ) ) );
connect( vlayer, SIGNAL( editingStarted() ), this, SLOT( editingToggled() ) );
connect( vlayer, SIGNAL( editingStopped() ), this, SLOT( editingToggled() ) );
}
//QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( fields, f, crs );
QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( vlayer->pendingFields(), f, vlayer->crs() );
featItem->setData( 0, Qt::UserRole, FID_TO_STRING( f.id() ) );
featItem->setData( 0, Qt::UserRole + 1, mFeatures.size() );
mFeatures << f;
layItem->addChild( featItem );
const QgsFields &fields = vlayer->pendingFields();
const QgsAttributes& attrs = f.attributes();
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
continue;
QString value = fields[i].displayString( attrs[i] );
QTreeWidgetItem *attrItem = new QTreeWidgetItem( QStringList() << QString::number( i ) << value );
attrItem->setData( 0, Qt::DisplayRole, vlayer->attributeDisplayName( i ) );
attrItem->setData( 0, Qt::UserRole, fields[i].name() );
attrItem->setData( 0, Qt::UserRole + 1, i );
attrItem->setData( 1, Qt::UserRole, value );
switch ( vlayer->editType( i ) )
{
case QgsVectorLayer::Hidden:
// skip the item
delete attrItem;
continue;
case QgsVectorLayer::ValueMap:
value = vlayer->valueMap( i ).key( value, QString( "(%1)" ).arg( value ) );
break;
case QgsVectorLayer::Calendar:
if ( attrs[i].canConvert( QVariant::Date ) )
value = attrs[i].toDate().toString( vlayer->dateFormat( i ) );
break;
default:
break;
}
attrItem->setData( 1, Qt::DisplayRole, value );
if ( fields[i].name() == vlayer->displayField() )
{
featItem->setText( 0, attrItem->text( 0 ) );
featItem->setText( 1, attrItem->text( 1 ) );
}
featItem->addChild( attrItem );
}
if ( derivedAttributes.size() >= 0 )
{
QTreeWidgetItem *derivedItem = new QTreeWidgetItem( QStringList() << tr( "(Derived)" ) );
derivedItem->setData( 0, Qt::UserRole, "derived" );
featItem->addChild( derivedItem );
for ( QMap< QString, QString>::const_iterator it = derivedAttributes.begin(); it != derivedAttributes.end(); ++it )
{
derivedItem->addChild( new QTreeWidgetItem( QStringList() << it.key() << it.value() ) );
}
}
//get valid QgsMapLayerActions for this layer
QList< QgsMapLayerAction* > registeredActions = QgsMapLayerActionRegistry::instance()->mapLayerActions( vlayer );
if ( vlayer->pendingFields().size() > 0 || vlayer->actions()->size() || registeredActions.size() )
{
QTreeWidgetItem *actionItem = new QTreeWidgetItem( QStringList() << tr( "(Actions)" ) );
actionItem->setData( 0, Qt::UserRole, "actions" );
featItem->addChild( actionItem );
if ( vlayer->pendingFields().size() > 0 )
{
QTreeWidgetItem *editItem = new QTreeWidgetItem( QStringList() << "" << ( vlayer->isEditable() ? tr( "Edit feature form" ) : tr( "View feature form" ) ) );
editItem->setIcon( 0, QgsApplication::getThemeIcon( "/mActionPropertyItem.png" ) );
editItem->setData( 0, Qt::UserRole, "edit" );
actionItem->addChild( editItem );
}
for ( int i = 0; i < vlayer->actions()->size(); i++ )
{
const QgsAction &action = vlayer->actions()->at( i );
if ( !action.runable() )
continue;
QTreeWidgetItem *twi = new QTreeWidgetItem( QStringList() << "" << action.name() );
twi->setIcon( 0, QgsApplication::getThemeIcon( "/mAction.svg" ) );
twi->setData( 0, Qt::UserRole, "action" );
twi->setData( 0, Qt::UserRole + 1, QVariant::fromValue( i ) );
actionItem->addChild( twi );
}
//add actions from QgsMapLayerActionRegistry
for ( int i = 0; i < registeredActions.size(); i++ )
{
QgsMapLayerAction* action = registeredActions.at( i );
QTreeWidgetItem *twi = new QTreeWidgetItem( QStringList() << "" << action->text() );
twi->setIcon( 0, QgsApplication::getThemeIcon( "/mAction.svg" ) );
twi->setData( 0, Qt::UserRole, "map_layer_action" );
twi->setData( 0, Qt::UserRole + 1, qVariantFromValue( qobject_cast<QObject *>( action ) ) );
actionItem->addChild( twi );
connect( action, SIGNAL( destroyed() ), this, SLOT( mapLayerActionDestroyed() ) );
}
}
// table
int j = tblResults->rowCount();
// insert empty row to separate layers
if ( j > 0 && tblResults->item( j - 1, 0 ) &&
tblResults->item( j - 1, 0 )->data( Qt::UserRole + 1 ).toString() != vlayer->id() )
{
tblResults->setRowCount( j + 1 );
tblResults->setRowHeight( j, 2 );
j++;
}
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
continue;
QString value = fields[i].displayString( attrs[i] );
QString value2 = value;
switch ( vlayer->editType( i ) )
{
case QgsVectorLayer::Hidden:
// skip the item
continue;
case QgsVectorLayer::ValueMap:
value2 = vlayer->valueMap( i ).key( value, QString( "(%1)" ).arg( value ) );
break;
case QgsVectorLayer::Calendar:
if ( attrs[i].canConvert( QVariant::Date ) )
value2 = attrs[i].toDate().toString( vlayer->dateFormat( i ) );
break;
default:
break;
}
tblResults->setRowCount( j + 1 );
QgsDebugMsg( QString( "adding item #%1 / %2 / %3 / %4" ).arg( j ).arg( vlayer->name() ).arg( vlayer->attributeDisplayName( i ) ).arg( value2 ) );
QTableWidgetItem *item = new QTableWidgetItem( vlayer->name() );
item->setData( Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( vlayer ) ) );
item->setData( Qt::UserRole + 1, vlayer->id() );
tblResults->setItem( j, 0, item );
item = new QTableWidgetItem( FID_TO_STRING( f.id() ) );
item->setData( Qt::UserRole, FID_TO_STRING( f.id() ) );
item->setData( Qt::UserRole + 1, mFeatures.size() );
tblResults->setItem( j, 1, item );
item = new QTableWidgetItem( QString::number( i ) );
if ( fields[i].name() == vlayer->displayField() )
item->setData( Qt::DisplayRole, vlayer->attributeDisplayName( i ) + " *" );
else
item->setData( Qt::DisplayRole, vlayer->attributeDisplayName( i ) );
item->setData( Qt::UserRole, fields[i].name() );
item->setData( Qt::UserRole + 1, i );
tblResults->setItem( j, 2, item );
item = new QTableWidgetItem( value );
item->setData( Qt::UserRole, value );
item->setData( Qt::DisplayRole, value2 );
tblResults->setItem( j, 3, item );
// highlight first item
// if ( i==0 )
// {
// QBrush b = tblResults->palette().brush( QPalette::AlternateBase );
// for ( int k = 0; k <= 3; k++)
// tblResults->item( j, k )->setBackground( b );
// }
tblResults->resizeRowToContents( j );
j++;
}
tblResults->resizeColumnToContents( 1 );
highlightFeature( featItem );
}
void QgsIdentifyResultsDialog::mapLayerActionDestroyed()
{
QTreeWidgetItemIterator it( lstResults );
while ( *it )
{
if (( *it )->data( 0, Qt::UserRole ) == "map_layer_action" &&
( *it )->data( 0, Qt::UserRole + 1 ).value< QObject *>() == sender() )
delete *it;
else
++it;
}
}
void QgsIdentifyResultsDialog::addFeature( QgsRasterLayer *layer,
QString label,
const QMap<QString, QString> &attributes,
const QMap<QString, QString> &derivedAttributes,
const QgsFields &fields,
const QgsFeature &feature,
const QMap<QString, QVariant> ¶ms )
{
QgsDebugMsg( QString( "feature.isValid() = %1" ).arg( feature.isValid() ) );
QTreeWidgetItem *layItem = layerItem( layer );
QgsRaster::IdentifyFormat currentFormat = QgsRasterDataProvider::identifyFormatFromName( layer->customProperty( "identify/format" ).toString() );
if ( layItem == 0 )
{
layItem = new QTreeWidgetItem( QStringList() << QString::number( lstResults->topLevelItemCount() ) << layer->name() );
layItem->setData( 0, Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( layer ) ) );
lstResults->addTopLevelItem( layItem );
QComboBox *formatCombo = new QComboBox();
// Add all supported formats, best first. HTML is considered the best because
// it usually holds most information.
int capabilities = layer->dataProvider()->capabilities();
QList<QgsRaster::IdentifyFormat> formats;
formats << QgsRaster::IdentifyFormatHtml
<< QgsRaster::IdentifyFormatFeature
<< QgsRaster::IdentifyFormatText
<< QgsRaster::IdentifyFormatValue;
foreach ( QgsRaster::IdentifyFormat f, formats )
{
if ( !( QgsRasterDataProvider::identifyFormatToCapability( f ) & capabilities ) )
continue;
formatCombo->addItem( QgsRasterDataProvider::identifyFormatLabel( f ), f );
formatCombo->setItemData( formatCombo->count() - 1, qVariantFromValue( qobject_cast<QObject *>( layer ) ), Qt::UserRole + 1 );
if ( currentFormat == f )
formatCombo->setCurrentIndex( formatCombo->count() - 1 );
}
if ( formatCombo->count() > 1 )
{
// Add format combo box item
// Space added before format to keep it first in ordered list: TODO better (user data)
QTreeWidgetItem *formatItem = new QTreeWidgetItem( QStringList() << " " + tr( "Format" ) );
layItem->addChild( formatItem );
lstResults->setItemWidget( formatItem, 1, formatCombo );
connect( formatCombo, SIGNAL( currentIndexChanged( int ) ), this, SLOT( formatChanged( int ) ) );
}
else
{
delete formatCombo;
}
connect( layer, SIGNAL( destroyed() ), this, SLOT( layerDestroyed() ) );
connect( layer, SIGNAL( layerCrsChanged() ), this, SLOT( layerDestroyed() ) );
}
// Set/reset getFeatureInfoUrl (currently only available for Feature, so it may change if format changes)
layItem->setData( 0, GetFeatureInfoUrlRole, params.value( "getFeatureInfoUrl" ) );
QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( fields, feature, layer->crs(), QStringList() << label << "" );
layItem->addChild( featItem );
// add feature attributes
if ( feature.isValid() )
{
QgsDebugMsg( QString( "fields size = %1 attributes size = %2" ).arg( fields.size() ).arg( feature.attributes().size() ) );
const QgsAttributes& attrs = feature.attributes();
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
continue;
QTreeWidgetItem *attrItem = new QTreeWidgetItem( QStringList() << QString::number( i ) << attrs[i].toString() );
attrItem->setData( 0, Qt::DisplayRole, fields[i].name() );
QVariant value = attrs[i];
attrItem->setData( 1, Qt::DisplayRole, value );
featItem->addChild( attrItem );
}
}
if ( currentFormat == QgsRaster::IdentifyFormatHtml || currentFormat == QgsRaster::IdentifyFormatText )
{
QgsIdentifyResultsWebViewItem *attrItem = new QgsIdentifyResultsWebViewItem( lstResults );
featItem->addChild( attrItem ); // before setHtml()!
attrItem->setContent( attributes.begin().value().toUtf8(), currentFormat == QgsRaster::IdentifyFormatHtml ? "text/html" : "text/plain" );
}
else
{
for ( QMap<QString, QString>::const_iterator it = attributes.begin(); it != attributes.end(); ++it )
{
featItem->addChild( new QTreeWidgetItem( QStringList() << it.key() << it.value() ) );
}
}
if ( derivedAttributes.size() >= 0 )
{
QTreeWidgetItem *derivedItem = new QTreeWidgetItem( QStringList() << tr( "(Derived)" ) );
derivedItem->setData( 0, Qt::UserRole, "derived" );
featItem->addChild( derivedItem );
for ( QMap< QString, QString>::const_iterator it = derivedAttributes.begin(); it != derivedAttributes.end(); ++it )
{
derivedItem->addChild( new QTreeWidgetItem( QStringList() << it.key() << it.value() ) );
}
}
// table
int i = 0;
int j = tblResults->rowCount();
// insert empty row to separate layers
if ( j > 0 && tblResults->item( j - 1, 0 ) &&
tblResults->item( j - 1, 0 )->data( Qt::UserRole + 1 ).toString() != layer->id() )
{
j++;
tblResults->setRowCount( j + 1 );
tblResults->setRowHeight( j - 1, 2 );
}
tblResults->setRowCount( j + attributes.count() );
for ( QMap<QString, QString>::const_iterator it = attributes.begin(); it != attributes.end(); ++it )
{
QgsDebugMsg( QString( "adding item #%1 / %2 / %3 / %4" ).arg( j ).arg( layer->name() ).arg( it.key() ).arg( it.value() ) );
QTableWidgetItem *item = new QTableWidgetItem( layer->name() );
item->setData( Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( layer ) ) );
item->setData( Qt::UserRole + 1, layer->id() );
tblResults->setItem( j, 0, item );
tblResults->setItem( j, 1, new QTableWidgetItem( QString::number( i + 1 ) ) );
tblResults->setItem( j, 2, new QTableWidgetItem( it.key() ) );
tblResults->setItem( j, 3, new QTableWidgetItem( it.value() ) );
tblResults->resizeRowToContents( j );
j++; i++;
}
tblResults->resizeColumnToContents( 1 );
}
void QgsIdentifyResultsDialog::editingToggled()
{
QTreeWidgetItem *layItem = layerItem( sender() );
QgsVectorLayer *vlayer = vectorLayer( layItem );
if ( !layItem || !vlayer )
return;
// iterate features
int i;
for ( i = 0; i < layItem->childCount(); i++ )
{
QTreeWidgetItem *featItem = layItem->child( i );
int j;
for ( j = 0; j < featItem->childCount() && featItem->child( j )->data( 0, Qt::UserRole ).toString() != "actions"; j++ )
QgsDebugMsg( QString( "%1: skipped %2" ).arg( featItem->child( j )->data( 0, Qt::UserRole ).toString() ) );
if ( j == featItem->childCount() || featItem->child( j )->childCount() < 1 )
continue;
QTreeWidgetItem *actions = featItem->child( j );
for ( j = 0; i < actions->childCount() && actions->child( j )->data( 0, Qt::UserRole ).toString() != "edit"; j++ )
;
if ( j == actions->childCount() )
continue;
QTreeWidgetItem *editItem = actions->child( j );
mOpenFormButton->setToolTip( vlayer->isEditable() ? tr( "Edit feature form" ) : tr( "View feature form" ) );
editItem->setText( 1, mOpenFormButton->toolTip() );
}
}
// Call to show the dialog box.
void QgsIdentifyResultsDialog::show()
{
// Enforce a few things before showing the dialog box
lstResults->sortItems( 0, Qt::AscendingOrder );
// column width is now stored in settings
//expandColumnsToFit();
if ( lstResults->topLevelItemCount() > 0 )
{
QTreeWidgetItem *layItem = lstResults->topLevelItem( 0 );
QTreeWidgetItem *featItem = layItem->child( 0 );
if ( lstResults->topLevelItemCount() == 1 && layItem->childCount() == 1 )
{
lstResults->setCurrentItem( featItem );
if ( QSettings().value( "/Map/identifyAutoFeatureForm", false ).toBool() )
{
QgsVectorLayer *layer = qobject_cast<QgsVectorLayer *>( layItem->data( 0, Qt::UserRole ).value<QObject *>() );
if ( layer )
{
// if this is the only feature and it's on a vector layer
// don't show the form dialog instead of the results window
featureForm();
}
}
}
// expand first layer and feature
featItem->setExpanded( true );
layItem->setExpanded( true );
}
// expand all if enabled
if ( mExpandNewToolButton->isChecked() )
{
lstResults->expandAll();
}
QDialog::show();
mDock->show();
mDock->raise();
}
void QgsIdentifyResultsDialog::itemClicked( QTreeWidgetItem *item, int column )
{
Q_UNUSED( column );
if ( item->data( 0, Qt::UserRole ).toString() == "edit" )
{
lstResults->setCurrentItem( item );
featureForm();
}
else if ( item->data( 0, Qt::UserRole ).toString() == "action" )
{
doAction( item, item->data( 0, Qt::UserRole + 1 ).toInt() );
}
else if ( item->data( 0, Qt::UserRole ).toString() == "map_layer_action" )
{
QObject *action = item->data( 0, Qt::UserRole + 1 ).value<QObject *>();
doMapLayerAction( item, qobject_cast<QgsMapLayerAction *>( action ) );
}
}
// Popup (create if necessary) a context menu that contains a list of
// actions that can be applied to the data in the identify results
// dialog box.
void QgsIdentifyResultsDialog::contextMenuEvent( QContextMenuEvent* event )
{
QgsDebugMsg( "Entered" );
QTreeWidgetItem *item = lstResults->itemAt( lstResults->viewport()->mapFrom( this, event->pos() ) );
// if the user clicked below the end of the attribute list, just return
if ( !item )
return;
QgsMapLayer *layer = vectorLayer( item );
QgsVectorLayer *vlayer = vectorLayer( item );
QgsRasterLayer *rlayer = rasterLayer( item );
if ( vlayer == 0 && rlayer == 0 )
{
QgsDebugMsg( "Item does not belong to a layer." );
return;
}
if ( mActionPopup )
delete mActionPopup;
mActionPopup = new QMenu();
int idx = -1;
// QTreeWidgetItem *featItem = featureItem( item );
QgsIdentifyResultsFeatureItem *featItem = dynamic_cast<QgsIdentifyResultsFeatureItem *>( featureItem( item ) );
if ( featItem )
{
if ( vlayer )
{
mActionPopup->addAction(
QgsApplication::getThemeIcon( "/mActionPropertyItem.png" ),
vlayer->isEditable() ? tr( "Edit feature form" ) : tr( "View feature form" ),
this, SLOT( featureForm() ) );
}
if ( featItem->feature().isValid() )
{
mActionPopup->addAction( tr( "Zoom to feature" ), this, SLOT( zoomToFeature() ) );
mActionPopup->addAction( tr( "Copy feature" ), this, SLOT( copyFeature() ) );
}
mActionPopup->addAction( tr( "Copy attribute value" ), this, SLOT( copyAttributeValue() ) );
mActionPopup->addAction( tr( "Copy feature attributes" ), this, SLOT( copyFeatureAttributes() ) );
if ( item->parent() == featItem && item->childCount() == 0 )
{
idx = item->data( 0, Qt::UserRole + 1 ).toInt();
}
}
if ( rlayer )
{
QTreeWidgetItem *layItem = layerItem( item );
if ( layItem && !layItem->data( 0, GetFeatureInfoUrlRole ).toString().isEmpty() )
{
mActionPopup->addAction( tr( "Copy GetFeatureInfo request URL" ), this, SLOT( copyGetFeatureInfoUrl() ) );
}
}
if ( mActionPopup->children().size() > 0 )
{
mActionPopup->addSeparator();
}
mActionPopup->addAction( tr( "Clear results" ), this, SLOT( clear() ) );
mActionPopup->addAction( tr( "Clear highlights" ), this, SLOT( clearHighlights() ) );
mActionPopup->addAction( tr( "Highlight all" ), this, SLOT( highlightAll() ) );
mActionPopup->addAction( tr( "Highlight layer" ), this, SLOT( highlightLayer() ) );
if ( layer && QgsProject::instance()->layerIsEmbedded( layer->id() ).isEmpty() )
{
mActionPopup->addAction( tr( "Activate layer" ), this, SLOT( activateLayer() ) );
mActionPopup->addAction( tr( "Layer properties..." ), this, SLOT( layerProperties() ) );
}
mActionPopup->addSeparator();
mActionPopup->addAction( tr( "Expand all" ), this, SLOT( expandAll() ) );
mActionPopup->addAction( tr( "Collapse all" ), this, SLOT( collapseAll() ) );
mActionPopup->addSeparator();
if ( featItem && vlayer && vlayer->actions()->size() > 0 )
{
mActionPopup->addSeparator();
int featIdx = featItem->data( 0, Qt::UserRole + 1 ).toInt();
// The assumption is made that an instance of QgsIdentifyResults is
// created for each new Identify Results dialog box, and that the
// contents of the popup menu doesn't change during the time that
// such a dialog box is around.
for ( int i = 0; i < vlayer->actions()->size(); i++ )
{
const QgsAction &action = vlayer->actions()->at( i );
if ( !action.runable() )
continue;
QgsFeatureAction *a = new QgsFeatureAction( action.name(), mFeatures[ featIdx ], vlayer, i, idx, this );
mActionPopup->addAction( QgsApplication::getThemeIcon( "/mAction.svg" ), action.name(), a, SLOT( execute() ) );
}
}
if ( featItem && vlayer )
{
//get valid QgsMapLayerActions for this layer
QList< QgsMapLayerAction* > registeredActions = QgsMapLayerActionRegistry::instance()->mapLayerActions( vlayer );
if ( registeredActions.size() > 0 )
{
//add a separator between user defined and standard actions
mActionPopup->addSeparator();
int featIdx = featItem->data( 0, Qt::UserRole + 1 ).toInt();
QList<QgsMapLayerAction*>::iterator actionIt;
for ( actionIt = registeredActions.begin(); actionIt != registeredActions.end(); ++actionIt )
{
QgsIdentifyResultsDialogMapLayerAction *a = new QgsIdentifyResultsDialogMapLayerAction(( *actionIt )->text(), this, ( *actionIt ), vlayer, &( mFeatures[ featIdx ] ) );
mActionPopup->addAction( QgsApplication::getThemeIcon( "/mAction.svg" ), ( *actionIt )->text(), a, SLOT( execute() ) );
}
}
}
mActionPopup->popup( event->globalPos() );
}
// Save the current window location (store in ~/.qt/qgisrc)
void QgsIdentifyResultsDialog::saveWindowLocation()
{
QSettings settings;
settings.setValue( "/Windows/Identify/geometry", saveGeometry() );
// first column width
settings.setValue( "/Windows/Identify/columnWidth", lstResults->columnWidth( 0 ) );
settings.setValue( "/Windows/Identify/columnWidthTable", tblResults->columnWidth( 0 ) );
}
void QgsIdentifyResultsDialog::setColumnText( int column, const QString & label )
{
QTreeWidgetItem* header = lstResults->headerItem();
header->setText( column, label );
}
void QgsIdentifyResultsDialog::expandColumnsToFit()
{
lstResults->resizeColumnToContents( 0 );
lstResults->resizeColumnToContents( 1 );
}
void QgsIdentifyResultsDialog::clearHighlights()
{
foreach ( QgsHighlight *h, mHighlights )
{
delete h;
}
mHighlights.clear();
}
void QgsIdentifyResultsDialog::clear()
{
for ( int i = 0; i < lstResults->topLevelItemCount(); i++ )
{
disconnectLayer( lstResults->topLevelItem( i )->data( 0, Qt::UserRole ).value<QObject *>() );
}
lstResults->clear();
clearHighlights();
tblResults->clearContents();
tblResults->setRowCount( 0 );
// keep it visible but disabled, it can switch from disabled/enabled
// after raster format change
mPrintToolButton->setDisabled( true );
}
void QgsIdentifyResultsDialog::activate()
{
#if 0
foreach ( QgsRubberBand *rb, mRubberBands )
{
rb->show();
}
#endif
if ( lstResults->topLevelItemCount() > 0 )
{
show();
raise();
}
}