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qgsidentifyresultsdialog.cpp
2427 lines (2060 loc) · 80.4 KB
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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 <QCloseEvent>
#include <QLabel>
#include <QAction>
#include <QTreeWidgetItem>
#include <QPixmap>
#include <QMenu>
#include <QClipboard>
#include <QDesktopWidget>
#include <QMenuBar>
#include <QPushButton>
#include <QPrinter>
#include <QPrintDialog>
#include <QDesktopServices>
#include <QMessageBox>
#include <QComboBox>
#include <QTextDocument>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QFileDialog>
#include <QFileInfo>
#include <QRegExp>
#include <QScreen>
#include <QFont>
//graph
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <qwt_symbol.h>
#include <qwt_legend.h>
#include "qgscolorramp.h" // for random colors
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgsactionmanager.h"
#include "qgsattributedialog.h"
#include "qgsdockwidget.h"
#include "qgseditorwidgetregistry.h"
#include "qgsfeatureaction.h"
#include "qgsfeatureiterator.h"
#include "qgsfeaturestore.h"
#include "qgsgeometry.h"
#include "qgshighlight.h"
#include "qgsmaptoolidentifyaction.h"
#include "qgsidentifyresultsdialog.h"
#include "qgslogger.h"
#include "qgsmapcanvas.h"
#include "qgsmaplayeractionregistry.h"
#include "qgsmaplayer.h"
#include "qgsmeshlayer.h"
#include "qgsnetworkaccessmanager.h"
#include "qgsproject.h"
#include "qgsrasterdataprovider.h"
#include "qgsrasterlayer.h"
#include "qgsvectorlayer.h"
#include "qgsvectordataprovider.h"
#include "qgsvectortilelayer.h"
#include "qgsrelationmanager.h"
#include "qgswebview.h"
#include "qgswebframe.h"
#include "qgsstringutils.h"
#include "qgstreewidgetitem.h"
#include "qgsfiledownloaderdialog.h"
#include "qgsfieldformatterregistry.h"
#include "qgsfieldformatter.h"
#include "qgsfieldmodel.h"
#include "qgssettings.h"
#include "qgsgui.h"
#include "qgsexpressioncontextutils.h"
#include "qgsidentifymenu.h"
#include "qgsjsonutils.h"
#include <nlohmann/json.hpp>
QgsIdentifyResultsWebView::QgsIdentifyResultsWebView( QWidget *parent ) : QgsWebView( parent )
{
setSizePolicy( QSizePolicy::MinimumExpanding, QSizePolicy::Minimum );
page()->setNetworkAccessManager( QgsNetworkAccessManager::instance() );
#ifdef WITH_QTWEBKIT
page()->setForwardUnsupportedContent( true );
#endif
page()->setLinkDelegationPolicy( QWebPage::DontDelegateLinks );
settings()->setAttribute( QWebSettings::LocalContentCanAccessRemoteUrls, true );
settings()->setAttribute( QWebSettings::JavascriptCanOpenWindows, true );
settings()->setAttribute( QWebSettings::PluginsEnabled, true );
#ifdef QGISDEBUG
settings()->setAttribute( QWebSettings::DeveloperExtrasEnabled, true );
#endif
connect( page(), &QWebPage::downloadRequested, this, &QgsIdentifyResultsWebView::downloadRequested );
connect( page(), &QWebPage::unsupportedContent, this, &QgsIdentifyResultsWebView::unsupportedContent );
}
void QgsIdentifyResultsWebView::downloadRequested( const QNetworkRequest &request )
{
handleDownload( request.url() );
}
void QgsIdentifyResultsWebView::unsupportedContent( QNetworkReply *reply )
{
handleDownload( reply->url() );
}
void QgsIdentifyResultsWebView::handleDownload( QUrl url )
{
if ( ! url.isValid() )
{
QMessageBox::warning( this, tr( "Invalid URL" ), tr( "The download URL is not valid: %1" ).arg( url.toString() ) );
}
else
{
const QString DOWNLOADER_LAST_DIR_KEY( QStringLiteral( "Qgis/fileDownloaderLastDir" ) );
QgsSettings settings;
// Try to get some information from the URL
QFileInfo info( url.toString() );
QString savePath = settings.value( DOWNLOADER_LAST_DIR_KEY ).toString();
QString fileName = info.fileName().replace( QRegExp( "[^A-z0-9\\-_\\.]" ), QStringLiteral( "_" ) );
if ( ! savePath.isEmpty() && ! fileName.isEmpty() )
{
savePath = QDir::cleanPath( savePath + QDir::separator() + fileName );
}
QString targetFile = QFileDialog::getSaveFileName( this,
tr( "Save As" ),
savePath,
info.suffix().isEmpty() ? QString() : "*." + info.suffix()
);
if ( ! targetFile.isEmpty() )
{
settings.setValue( DOWNLOADER_LAST_DIR_KEY, QFileInfo( targetFile ).dir().absolutePath() );
// Start the download
new QgsFileDownloaderDialog( url, targetFile );
}
}
}
void QgsIdentifyResultsWebView::print()
{
QPrinter printer;
QPrintDialog *dialog = new QPrintDialog( &printer );
if ( dialog->exec() == QDialog::Accepted )
{
QgsWebView::print( &printer );
}
}
void QgsIdentifyResultsWebView::contextMenuEvent( QContextMenuEvent *e )
{
QMenu *menu = page()->createStandardContextMenu();
if ( !menu )
return;
QAction *action = new QAction( tr( "Print" ), this );
connect( action, &QAction::triggered, this, &QgsIdentifyResultsWebView::print );
menu->addAction( action );
menu->exec( e->globalPos() );
delete menu;
}
QgsWebView *QgsIdentifyResultsWebView::createWindow( QWebPage::WebWindowType type )
{
QDialog *d = new QDialog( this );
QLayout *l = new QVBoxLayout( d );
QgsWebView *wv = new QgsWebView( 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 );
wv->settings()->setAttribute( QWebSettings::PluginsEnabled, 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 scrollbar
// 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 automatically 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( QStringLiteral( "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( QStringLiteral( "parent widget height = %1 max height = %2" ).arg( widget->size().height() ).arg( max ) );
height = std::min( height, max );
}
else
{
QgsDebugMsg( QStringLiteral( "parent not available" ) );
}
// Always keep some minimum size, e.g. if page is not yet loaded
// or parent has wrong size
height = std::max( height, 100 );
s = QSize( size().width(), height );
QgsDebugMsg( QStringLiteral( "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(), &QWebPage::loadFinished, this, &QgsIdentifyResultsWebViewItem::loadFinished );
}
void QgsIdentifyResultsWebViewItem::loadFinished( bool ok )
{
Q_UNUSED( ok )
mWebView->show();
treeWidget()->setItemWidget( this, 0, mWebView );
// Span columns to save some space, must be after setItemWidget() to take effect.
setFirstColumnSpanned( true );
disconnect( mWebView->page(), &QWebPage::loadFinished, this, &QgsIdentifyResultsWebViewItem::loadFinished );
}
// 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 )
, mCanvas( canvas )
{
setupUi( this );
connect( cmbIdentifyMode, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsIdentifyResultsDialog::cmbIdentifyMode_currentIndexChanged );
connect( cmbViewMode, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, &QgsIdentifyResultsDialog::cmbViewMode_currentIndexChanged );
connect( mExpandNewAction, &QAction::triggered, this, &QgsIdentifyResultsDialog::mExpandNewAction_triggered );
connect( mExpandAction, &QAction::triggered, this, &QgsIdentifyResultsDialog::mExpandAction_triggered );
connect( mCollapseAction, &QAction::triggered, this, &QgsIdentifyResultsDialog::mCollapseAction_triggered );
connect( mActionCopy, &QAction::triggered, this, &QgsIdentifyResultsDialog::mActionCopy_triggered );
connect( mActionAutoFeatureForm, &QAction::toggled, this, &QgsIdentifyResultsDialog::mActionAutoFeatureForm_toggled );
mOpenFormAction->setDisabled( true );
QgsSettings mySettings;
mDock = new QgsDockWidget( tr( "Identify Results" ), QgisApp::instance() );
mDock->setObjectName( QStringLiteral( "IdentifyResultsDock" ) );
mDock->setAllowedAreas( Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea );
mDock->setWidget( this );
if ( !QgisApp::instance()->restoreDockWidget( mDock ) )
QgisApp::instance()->addDockWidget( Qt::RightDockWidgetArea, mDock );
else
QgisApp::instance()->panelMenu()->addAction( mDock->toggleViewAction() );
int size = mySettings.value( QStringLiteral( "/qgis/iconSize" ), 16 ).toInt();
if ( size > 32 )
{
size -= 16;
}
else if ( size == 32 )
{
size = 24;
}
else
{
size = 16;
}
mIdentifyToolbar->setIconSize( QSize( size, size ) );
mExpandNewAction->setChecked( mySettings.value( QStringLiteral( "Map/identifyExpand" ), false ).toBool() );
mActionCopy->setEnabled( false );
lstResults->setColumnCount( 2 );
lstResults->sortByColumn( -1, Qt::AscendingOrder );
setColumnText( 0, tr( "Feature" ) );
setColumnText( 1, tr( "Value" ) );
int width = mySettings.value( QStringLiteral( "Windows/Identify/columnWidth" ), "0" ).toInt();
if ( width > 0 )
{
lstResults->setColumnWidth( 0, width );
}
width = mySettings.value( QStringLiteral( "Windows/Identify/columnWidthTable" ), "0" ).toInt();
if ( width > 0 )
{
tblResults->setColumnWidth( 0, width );
}
// retrieve mode before on_cmbIdentifyMode_currentIndexChanged resets it on addItem
QgsMapToolIdentify::IdentifyMode identifyMode = mySettings.enumValue( QStringLiteral( "Map/identifyMode" ), QgsMapToolIdentify::ActiveLayer );
cmbIdentifyMode->addItem( tr( "Current Layer" ), QgsMapToolIdentify::ActiveLayer );
cmbIdentifyMode->addItem( tr( "Top Down, Stop at First" ), QgsMapToolIdentify::TopDownStopAtFirst );
cmbIdentifyMode->addItem( tr( "Top Down" ), QgsMapToolIdentify::TopDownAll );
cmbIdentifyMode->addItem( tr( "Layer Selection" ), QgsMapToolIdentify::LayerSelection );
cmbIdentifyMode->setCurrentIndex( cmbIdentifyMode->findData( identifyMode ) );
// view modes
cmbViewMode->addItem( tr( "Tree" ), 0 );
cmbViewMode->addItem( tr( "Table" ), 0 );
cmbViewMode->addItem( tr( "Graph" ), 0 );
// graph
mPlot->setVisible( false );
mPlot->setAutoFillBackground( false );
mPlot->setAutoDelete( true );
mPlot->insertLegend( new QwtLegend(), QwtPlot::TopLegend );
QSizePolicy sizePolicy = QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Expanding );
sizePolicy.setHorizontalStretch( 0 );
sizePolicy.setVerticalStretch( 0 );
sizePolicy.setHeightForWidth( mPlot->sizePolicy().hasHeightForWidth() );
mPlot->setSizePolicy( sizePolicy );
mPlot->updateGeometry();
connect( lstResults, &QTreeWidget::itemExpanded,
this, &QgsIdentifyResultsDialog::itemExpanded );
connect( lstResults, &QTreeWidget::currentItemChanged,
this, &QgsIdentifyResultsDialog::handleCurrentItemChanged );
connect( lstResults, &QTreeWidget::itemClicked,
this, &QgsIdentifyResultsDialog::itemClicked );
connect( mActionPrint, &QAction::triggered, this, &QgsIdentifyResultsDialog::printCurrentItem );
connect( mOpenFormAction, &QAction::triggered, this, &QgsIdentifyResultsDialog::featureForm );
connect( mClearResultsAction, &QAction::triggered, this, &QgsIdentifyResultsDialog::clear );
connect( mHelpToolButton, &QAbstractButton::clicked, this, &QgsIdentifyResultsDialog::showHelp );
initSelectionModes();
QMenu *settingsMenu = new QMenu( this );
QToolButton *settingsButton = new QToolButton();
settingsButton->setAutoRaise( true );
settingsButton->setToolTip( tr( "Identify Settings" ) );
settingsButton->setMenu( settingsMenu );
settingsButton->setPopupMode( QToolButton::InstantPopup );
settingsButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionOptions.svg" ) ) );
mIdentifyToolbar->addWidget( settingsButton );
settingsMenu->addAction( mActionAutoFeatureForm );
mActionAutoFeatureForm->setChecked( mySettings.value( QStringLiteral( "Map/identifyAutoFeatureForm" ), false ).toBool() );
}
QgsIdentifyResultsDialog::~QgsIdentifyResultsDialog()
{
clearHighlights();
QgsSettings settings;
settings.setValue( QStringLiteral( "Windows/Identify/columnWidth" ), lstResults->columnWidth( 0 ) );
delete mActionPopup;
qDeleteAll( mPlotCurves );
mPlotCurves.clear();
}
void QgsIdentifyResultsDialog::initSelectionModes()
{
mSelectModeButton = new QToolButton( mIdentifyToolbar );
mSelectModeButton->setPopupMode( QToolButton::MenuButtonPopup );
QList<QAction *> selectActions;
selectActions << mActionSelectFeatures << mActionSelectPolygon
<< mActionSelectFreehand << mActionSelectRadius;
QActionGroup *group = new QActionGroup( this );
group->addAction( mActionSelectFeatures );
group->addAction( mActionSelectPolygon );
group->addAction( mActionSelectFreehand );
group->addAction( mActionSelectRadius );
mSelectModeButton->addActions( selectActions );
mSelectModeButton->setDefaultAction( mActionSelectFeatures );
mIdentifyToolbar->addWidget( mSelectModeButton );
connect( mActionSelectFeatures, &QAction::triggered, this, &QgsIdentifyResultsDialog::setSelectionMode );
connect( mActionSelectPolygon, &QAction::triggered, this, &QgsIdentifyResultsDialog::setSelectionMode );
connect( mActionSelectFreehand, &QAction::triggered, this, &QgsIdentifyResultsDialog::setSelectionMode );
connect( mActionSelectRadius, &QAction::triggered, this, &QgsIdentifyResultsDialog::setSelectionMode );
}
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 nullptr;
}
void QgsIdentifyResultsDialog::addFeature( const QgsMapToolIdentify::IdentifyResult &result )
{
switch ( result.mLayer->type() )
{
case QgsMapLayerType::VectorLayer:
addFeature( qobject_cast<QgsVectorLayer *>( result.mLayer ), result.mFeature, result.mDerivedAttributes );
break;
case QgsMapLayerType::RasterLayer:
addFeature( qobject_cast<QgsRasterLayer *>( result.mLayer ), result.mLabel, result.mAttributes, result.mDerivedAttributes, result.mFields, result.mFeature, result.mParams );
break;
case QgsMapLayerType::MeshLayer:
addFeature( qobject_cast<QgsMeshLayer *>( result.mLayer ), result.mLabel, result.mAttributes, result.mDerivedAttributes );
break;
case QgsMapLayerType::VectorTileLayer:
addFeature( qobject_cast<QgsVectorTileLayer *>( result.mLayer ), result.mLabel, result.mFields, result.mFeature, result.mDerivedAttributes );
break;
case QgsMapLayerType::PluginLayer:
case QgsMapLayerType::AnnotationLayer:
break;
}
}
void QgsIdentifyResultsDialog::addFeature( QgsVectorLayer *vlayer, const QgsFeature &f, const QMap<QString, QString> &derivedAttributes )
{
QTreeWidgetItem *layItem = layerItem( vlayer );
if ( !layItem )
{
layItem = new QTreeWidgetItem( QStringList() << vlayer->name() );
layItem->setData( 0, Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( vlayer ) ) );
lstResults->addTopLevelItem( layItem );
QFont boldFont;
boldFont.setBold( true );
layItem->setFont( 0, boldFont );
connect( vlayer, &QObject::destroyed, this, &QgsIdentifyResultsDialog::layerDestroyed );
connect( vlayer, &QgsMapLayer::crsChanged, this, &QgsIdentifyResultsDialog::layerDestroyed );
connect( vlayer, &QgsVectorLayer::featureDeleted, this, &QgsIdentifyResultsDialog::featureDeleted );
connect( vlayer, &QgsVectorLayer::attributeValueChanged,
this, &QgsIdentifyResultsDialog::attributeValueChanged );
connect( vlayer, &QgsVectorLayer::editingStarted, this, &QgsIdentifyResultsDialog::editingToggled );
connect( vlayer, &QgsVectorLayer::editingStopped, this, &QgsIdentifyResultsDialog::editingToggled );
}
QgsIdentifyResultsFeatureItem *featItem = createFeatureItem( vlayer, f, derivedAttributes, true, layItem );
featItem->setData( 0, Qt::UserRole + 1, mFeatures.size() );
mFeatures << f;
layItem->setFirstColumnSpanned( true );
QString countSuffix = layItem->childCount() > 1
? QStringLiteral( " [%1]" ).arg( layItem->childCount() )
: QString();
layItem->setText( 0, QStringLiteral( "%1 %2" ).arg( vlayer->name(), countSuffix ) );
// table
const QgsAttributes attrs = f.attributes();
const QgsFields fields = vlayer->fields();
int j = tblResults->rowCount();
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
continue;
QString value = fields.at( i ).displayString( attrs.at( i ) );
const QgsEditorWidgetSetup setup = QgsGui::editorWidgetRegistry()->findBest( vlayer, fields.at( i ).name() );
QString value2 = representValue( vlayer, setup, fields.at( i ).name(), attrs.at( i ) );
tblResults->setRowCount( j + 1 );
QgsDebugMsgLevel( QStringLiteral( "adding item #%1 / %2 / %3 / %4" ).arg( j ).arg( vlayer->name(), vlayer->attributeDisplayName( i ), value2 ), 4 );
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() );
item->setData( FeatureRole, f );
tblResults->setItem( j, 1, item );
item = new QTableWidgetItem( QString::number( i ) );
if ( fields.at( i ).name() == vlayer->displayField() )
item->setData( Qt::DisplayRole, QString( vlayer->attributeDisplayName( i ) + " *" ) );
else
item->setData( Qt::DisplayRole, vlayer->attributeDisplayName( i ) );
item->setData( Qt::UserRole, fields.at( 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 );
}
QgsIdentifyResultsFeatureItem *QgsIdentifyResultsDialog::createFeatureItem( QgsVectorLayer *vlayer, const QgsFeature &f, const QMap<QString, QString> &derivedAttributes, bool includeRelations, QTreeWidgetItem *parentItem )
{
QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( vlayer->fields(), f, vlayer->crs() );
featItem->setData( 0, Qt::UserRole, FID_TO_STRING( f.id() ) );
featItem->setData( 0, FeatureRole, f );
parentItem->addChild( featItem );
if ( !derivedAttributes.empty() )
{
QgsTreeWidgetItem *derivedItem = new QgsTreeWidgetItem( QStringList() << tr( "(Derived)" ) );
derivedItem->setData( 0, Qt::UserRole, "derived" );
derivedItem->setAlwaysOnTopPriority( 0 );
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 = QgsGui::mapLayerActionRegistry()->mapLayerActions( vlayer );
QList<QgsAction> actions = vlayer->actions()->actions( QStringLiteral( "Feature" ) );
if ( !vlayer->fields().isEmpty() || !actions.isEmpty() || !registeredActions.isEmpty() )
{
QgsTreeWidgetItem *actionItem = new QgsTreeWidgetItem( QStringList() << tr( "(Actions)" ) );
actionItem->setData( 0, Qt::UserRole, "actions" );
actionItem->setAlwaysOnTopPriority( 1 );
featItem->addChild( actionItem );
if ( vlayer->fields().size() > 0 )
{
QTreeWidgetItem *editItem = new QTreeWidgetItem( QStringList() << QString() << ( vlayer->isEditable() ? tr( "Edit feature form" ) : tr( "View feature form" ) ) );
editItem->setIcon( 0, QgsApplication::getThemeIcon( QStringLiteral( "/mActionFormView.svg" ) ) );
editItem->setData( 0, Qt::UserRole, "edit" );
actionItem->addChild( editItem );
}
const auto constActions = actions;
for ( const QgsAction &action : constActions )
{
if ( !action.runable() )
continue;
if ( action.isEnabledOnlyWhenEditable() )
continue;
QTreeWidgetItem *twi = new QTreeWidgetItem( QStringList() << QString() << action.name() );
twi->setIcon( 0, QgsApplication::getThemeIcon( QStringLiteral( "/mAction.svg" ) ) );
twi->setData( 0, Qt::UserRole, "action" );
twi->setData( 0, Qt::UserRole + 1, action.id() );
actionItem->addChild( twi );
}
//add actions from QgsMapLayerActionRegistry
for ( int i = 0; i < registeredActions.size(); i++ )
{
if ( registeredActions.at( i )->isEnabledOnlyWhenEditable() )
continue;
QgsMapLayerAction *action = registeredActions.at( i );
QTreeWidgetItem *twi = new QTreeWidgetItem( QStringList() << QString() << action->text() );
twi->setIcon( 0, QgsApplication::getThemeIcon( QStringLiteral( "/mAction.svg" ) ) );
twi->setData( 0, Qt::UserRole, "map_layer_action" );
twi->setData( 0, Qt::UserRole + 1, QVariant::fromValue( qobject_cast<QObject *>( action ) ) );
actionItem->addChild( twi );
connect( action, &QObject::destroyed, this, &QgsIdentifyResultsDialog::mapLayerActionDestroyed );
}
}
const QgsFields fields = vlayer->fields();
QgsAttributes attrs = f.attributes();
bool featureLabeled = false;
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
break;
const QgsEditorWidgetSetup setup = QgsGui::editorWidgetRegistry()->findBest( vlayer, fields[i].name() );
if ( setup.type() == QLatin1String( "Hidden" ) )
{
continue;
}
QString defVal;
if ( fields.fieldOrigin( i ) == QgsFields::OriginProvider && vlayer->dataProvider() )
defVal = vlayer->dataProvider()->defaultValueClause( fields.fieldOriginIndex( i ) );
QString value = defVal == attrs.at( i ) ? defVal : fields.at( i ).displayString( attrs.at( i ) );
QgsTreeWidgetItem *attrItem = new QgsTreeWidgetItem( QStringList() << QString::number( i ) << value );
featItem->addChild( attrItem );
attrItem->setData( 0, Qt::DisplayRole, vlayer->attributeDisplayName( i ) );
attrItem->setToolTip( 0, QgsFieldModel::fieldToolTipExtended( fields.at( i ), vlayer ) );
attrItem->setData( 0, Qt::UserRole, fields.at( i ).name() );
attrItem->setData( 0, Qt::UserRole + 1, i );
attrItem->setData( 1, Qt::UserRole, value );
value = representValue( vlayer, setup, fields.at( i ).name(), attrs.at( i ) );
attrItem->setSortData( 1, value );
attrItem->setToolTip( 1, value );
bool foundLinks = false;
QString links = QgsStringUtils::insertLinks( value, &foundLinks );
if ( foundLinks )
{
QLabel *valueLabel = new QLabel( links );
valueLabel->setOpenExternalLinks( true );
attrItem->setData( 1, Qt::DisplayRole, QString() );
QTreeWidget *tw = attrItem->treeWidget();
tw->setItemWidget( attrItem, 1, valueLabel );
}
else
{
attrItem->setData( 1, Qt::DisplayRole, value );
QTreeWidget *tw = attrItem->treeWidget();
tw->setItemWidget( attrItem, 1, nullptr );
}
if ( fields.at( i ).name() == vlayer->displayField() )
{
featItem->setText( 0, attrItem->text( 0 ) );
featItem->setToolTip( 0, attrItem->text( 0 ) );
featItem->setText( 1, attrItem->text( 1 ) );
featItem->setToolTip( 1, attrItem->text( 1 ) );
featureLabeled = true;
}
}
// add entries for related items
if ( includeRelations )
{
const QList<QgsRelation> relations = QgsProject::instance()->relationManager()->referencedRelations( vlayer );
if ( !relations.empty() )
{
for ( const QgsRelation &relation : relations )
{
QgsFeatureIterator childIt = relation.getRelatedFeatures( f );
QgsFeature childFeature;
QgsTreeWidgetItem *relationItem = nullptr;
while ( childIt.nextFeature( childFeature ) )
{
if ( !relationItem )
{
relationItem = new QgsTreeWidgetItem( QStringList() << relation.name() );
QFont italicFont;
italicFont.setItalic( true );
relationItem->setFont( 0, italicFont );
relationItem->setData( 0, Qt::UserRole, QVariant::fromValue( qobject_cast<QObject *>( relation.referencingLayer() ) ) );
featItem->addChild( relationItem );
}
QgsIdentifyResultsFeatureItem *childItem = createFeatureItem( relation.referencingLayer(), childFeature, QMap<QString, QString>(), false, relationItem );
relationItem->addChild( childItem );
}
if ( relationItem )
{
relationItem->setText( 0, QStringLiteral( "%1 [%2]" ).arg( relation.name() ).arg( relationItem->childCount() ) );
}
}
}
}
if ( !featureLabeled )
{
featItem->setText( 0, tr( "Title" ) );
QgsExpressionContext context( QgsExpressionContextUtils::globalProjectLayerScopes( vlayer ) );
context.setFeature( f );
QString value = QgsExpression( vlayer->displayExpression() ).evaluate( &context ).toString();
featItem->setText( 1, value );
featItem->setToolTip( 1, value );
}
return 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;
}
}
QgsIdentifyPlotCurve::QgsIdentifyPlotCurve( const QMap<QString, QString> &attributes,
QwtPlot *plot, const QString &title, QColor color )
{
mPlotCurve = new QwtPlotCurve( title );
if ( color == QColor() )
{
color = QgsLimitedRandomColorRamp::randomColors( 1 ).at( 0 );
}
mPlotCurve->setSymbol( new QwtSymbol( QwtSymbol::Ellipse, QBrush( Qt::white ),
QPen( color, 2 ), QSize( 9, 9 ) ) );
mPlotCurve->setPen( QPen( color, 2 ) ); // needed for legend
QVector<QPointF> myData;
int i = 1;
for ( QMap<QString, QString>::const_iterator it = attributes.begin();
it != attributes.end(); ++it )
{
myData << QPointF( double( i++ ), it.value().toDouble() );
}
mPlotCurve->setSamples( myData );
mPlotCurve->attach( plot );
plot->setAxisMaxMinor( QwtPlot::xBottom, 0 );
//mPlot->setAxisScale( QwtPlot::xBottom, 1, mPlotCurve->dataSize());
//mPlot->setAxisScale( QwtPlot::yLeft, ymin, ymax );
plot->replot();
plot->setVisible( true );
}
QgsIdentifyPlotCurve::~QgsIdentifyPlotCurve()
{
if ( mPlotCurve )
{
mPlotCurve->detach();
delete mPlotCurve;
}
}
QString QgsIdentifyResultsDialog::representValue( QgsVectorLayer *vlayer, const QgsEditorWidgetSetup &setup, const QString &fieldName, const QVariant &value )
{
QVariant cache;
QMap<QString, QVariant> &layerCaches = mWidgetCaches[vlayer->id()];
QgsEditorWidgetFactory *factory = QgsGui::editorWidgetRegistry()->factory( setup.type() );
QgsFieldFormatter *fieldFormatter = QgsApplication::fieldFormatterRegistry()->fieldFormatter( setup.type() );
int idx = vlayer->fields().lookupField( fieldName );
if ( !factory )
return value.toString();
if ( layerCaches.contains( fieldName ) )
{
cache = layerCaches[ fieldName ];
}
else
{
cache = fieldFormatter->createCache( vlayer, idx, setup.config() );
layerCaches.insert( fieldName, cache );
}
return fieldFormatter->representValue( vlayer, idx, setup.config(), cache, value );
}
// Raster variant of addFeature
void QgsIdentifyResultsDialog::addFeature( QgsRasterLayer *layer,
const QString &label,
const QMap<QString, QString> &attributes,
const QMap<QString, QString> &derivedAttributes,
const QgsFields &fields,
const QgsFeature &feature,
const QMap<QString, QVariant> ¶ms )
{
QgsDebugMsg( QStringLiteral( "feature.isValid() = %1" ).arg( feature.isValid() ) );
QTreeWidgetItem *layItem = layerItem( layer );
QgsRaster::IdentifyFormat currentFormat = QgsRasterDataProvider::identifyFormatFromName( layer->customProperty( QStringLiteral( "identify/format" ) ).toString() );
if ( !layItem )
{
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();
static const QList<QgsRaster::IdentifyFormat> formats
{
QgsRaster::IdentifyFormatHtml,
QgsRaster::IdentifyFormatFeature,
QgsRaster::IdentifyFormatText,
QgsRaster::IdentifyFormatValue };
for ( const auto &f : formats )
{
if ( !( QgsRasterDataProvider::identifyFormatToCapability( f ) & capabilities ) )
continue;
formatCombo->addItem( QgsRasterDataProvider::identifyFormatLabel( f ), f );
formatCombo->setItemData( formatCombo->count() - 1, QVariant::fromValue( 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, qgis::overload<int>::of( &QComboBox::currentIndexChanged ),
this, qgis::overload<int>::of( &QgsIdentifyResultsDialog::formatChanged ) );
}
else
{
delete formatCombo;
}
connect( layer, &QObject::destroyed, this, &QgsIdentifyResultsDialog::layerDestroyed );
connect( layer, &QgsMapLayer::crsChanged, this, &QgsIdentifyResultsDialog::layerDestroyed );
}
// Set/reset getFeatureInfoUrl (currently only available for Feature, so it may change if format changes)
layItem->setData( 0, GetFeatureInfoUrlRole, params.value( QStringLiteral( "getFeatureInfoUrl" ) ) );
QgsIdentifyResultsFeatureItem *featItem = new QgsIdentifyResultsFeatureItem( fields, feature, layer->crs(), QStringList() << label << QString() );
layItem->addChild( featItem );
// add feature attributes
if ( feature.isValid() )
{
QgsDebugMsg( QStringLiteral( "fields size = %1 attributes size = %2" ).arg( fields.size() ).arg( feature.attributes().size() ) );
QgsAttributes attrs = feature.attributes();
for ( int i = 0; i < attrs.count(); ++i )
{
if ( i >= fields.count() )
continue;
// We have no vector layer here (can't use the formatters), let's guess the format from the QVariant type
const auto value { attrs.at( i ) };
auto formattedValue { value.toString() };
bool isString = false;
if ( value.isValid( ) )
{
if ( value.type() == QVariant::Double )
{
bool ok;
double val( value.toDouble( &ok ) );
if ( ok )
{
// Precision is not set, let's guess it from the
// standard conversion to string
const auto strVal { value.toString() };
int dotPosition { strVal.indexOf( '.' ) };
int precision;
if ( dotPosition < 0 )
{
precision = 0;
}
else
{
precision = strVal.length() - dotPosition - 1;
}
formattedValue = QLocale().toString( val, 'f', precision );
}
}
else if ( value.type() == QVariant::Int )
{
bool ok;
double val( value.toInt( &ok ) );
if ( ok )
{
formattedValue = QLocale().toString( val, 'f', 0 );
}
}
else if ( value.type() == QVariant::LongLong )
{
bool ok;
double val( value.toLongLong( &ok ) );
if ( ok )
{
formattedValue = QLocale().toString( val, 'f', 0 );
}
}
else if ( ! formattedValue.isEmpty() )
{
isString = true;
}
else
{
formattedValue = QString::fromStdString( QgsJsonUtils::jsonFromVariant( value ).dump() );
}
}
QTreeWidgetItem *attrItem = new QTreeWidgetItem( { fields.at( i ).name(), formattedValue } );
featItem->addChild( attrItem );