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qgscomposerlegendwidget.cpp
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qgscomposerlegendwidget.cpp
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/***************************************************************************
qgscomposerlegendwidget.cpp
---------------------------
begin : July 2008
copyright : (C) 2008 by Marco Hugentobler
email : marco dot hugentobler at karto dot baug dot ethz dot ch
***************************************************************************/
/***************************************************************************
* *
* 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 "qgscomposerlegendwidget.h"
#include "qgscomposerlegend.h"
#include "qgscomposerlegendlayersdialog.h"
#include "qgscomposeritemwidget.h"
#include "qgscomposermap.h"
#include "qgscomposition.h"
#include "qgisgui.h"
#include "qgisapp.h"
#include "qgsapplication.h"
#include "qgslayertree.h"
#include "qgslayertreeutils.h"
#include "qgslayertreemodel.h"
#include "qgslayertreemodellegendnode.h"
#include "qgslegendrenderer.h"
#include "qgsmapcanvas.h"
#include "qgsmaplayerlegend.h"
#include "qgsproject.h"
#include "qgsvectorlayer.h"
#include <QMessageBox>
#include <QInputDialog>
static int _unfilteredLegendNodeIndex( QgsLayerTreeModelLegendNode *legendNode )
{
return legendNode->model()->layerOriginalLegendNodes( legendNode->layerNode() ).indexOf( legendNode );
}
static int _originalLegendNodeIndex( QgsLayerTreeModelLegendNode *legendNode )
{
// figure out index of the legend node as it comes out of the map layer legend.
// first legend nodes may be reordered, output of that is available in layerOriginalLegendNodes().
// next the nodes may be further filtered (by scale, map content etc).
// so here we go in reverse order: 1. find index before filtering, 2. find index before reorder
int unfilteredNodeIndex = _unfilteredLegendNodeIndex( legendNode );
QList<int> order = QgsMapLayerLegendUtils::legendNodeOrder( legendNode->layerNode() );
return ( unfilteredNodeIndex >= 0 && unfilteredNodeIndex < order.count() ? order[unfilteredNodeIndex] : -1 );
}
QgsComposerLegendWidget::QgsComposerLegendWidget( QgsComposerLegend *legend )
: QgsComposerItemBaseWidget( nullptr, legend )
, mLegend( legend )
{
setupUi( this );
setPanelTitle( tr( "Legend properties" ) );
// setup icons
mAddToolButton->setIcon( QIcon( QgsApplication::iconPath( "symbologyAdd.svg" ) ) );
mEditPushButton->setIcon( QIcon( QgsApplication::iconPath( "symbologyEdit.png" ) ) );
mRemoveToolButton->setIcon( QIcon( QgsApplication::iconPath( "symbologyRemove.svg" ) ) );
mMoveUpToolButton->setIcon( QIcon( QgsApplication::iconPath( "mActionArrowUp.svg" ) ) );
mMoveDownToolButton->setIcon( QIcon( QgsApplication::iconPath( "mActionArrowDown.svg" ) ) );
mCountToolButton->setIcon( QIcon( QgsApplication::iconPath( "mActionSum.svg" ) ) );
mFontColorButton->setColorDialogTitle( tr( "Select font color" ) );
mFontColorButton->setContext( QStringLiteral( "composer" ) );
mRasterStrokeColorButton->setColorDialogTitle( tr( "Select stroke color" ) );
mRasterStrokeColorButton->setAllowAlpha( true );
mRasterStrokeColorButton->setContext( QStringLiteral( "composer " ) );
if ( legend )
mMapComboBox->setComposition( legend->composition() );
mMapComboBox->setItemType( QgsComposerItem::ComposerMap );
connect( mMapComboBox, &QgsComposerItemComboBox::itemChanged, this, &QgsComposerLegendWidget::composerMapChanged );
//add widget for item properties
QgsComposerItemWidget *itemPropertiesWidget = new QgsComposerItemWidget( this, legend );
mainLayout->addWidget( itemPropertiesWidget );
mItemTreeView->setHeaderHidden( true );
if ( legend )
{
mItemTreeView->setModel( legend->model() );
mItemTreeView->setMenuProvider( new QgsComposerLegendMenuProvider( mItemTreeView, this ) );
connect( legend, &QgsComposerObject::itemChanged, this, &QgsComposerLegendWidget::setGuiElements );
mWrapCharLineEdit->setText( legend->wrapChar() );
// connect atlas state to the filter legend by atlas checkbox
connect( &legend->composition()->atlasComposition(), &QgsAtlasComposition::toggled, this, &QgsComposerLegendWidget::updateFilterLegendByAtlasButton );
connect( &legend->composition()->atlasComposition(), &QgsAtlasComposition::coverageLayerChanged, this, &QgsComposerLegendWidget::updateFilterLegendByAtlasButton );
}
registerDataDefinedButton( mLegendTitleDDBtn, QgsComposerObject::LegendTitle );
registerDataDefinedButton( mColumnsDDBtn, QgsComposerObject::LegendColumnCount );
setGuiElements();
connect( mItemTreeView->selectionModel(), &QItemSelectionModel::currentChanged,
this, &QgsComposerLegendWidget::selectedChanged );
}
QgsComposerLegendWidget::QgsComposerLegendWidget(): QgsComposerItemBaseWidget( nullptr, nullptr ), mLegend( nullptr )
{
setupUi( this );
}
QgsComposerLegendWidget::~QgsComposerLegendWidget()
{
}
void QgsComposerLegendWidget::setGuiElements()
{
if ( !mLegend )
{
return;
}
int alignment = mLegend->titleAlignment() == Qt::AlignLeft ? 0 : mLegend->titleAlignment() == Qt::AlignHCenter ? 1 : 2;
blockAllSignals( true );
mTitleLineEdit->setText( mLegend->title() );
mTitleAlignCombo->setCurrentIndex( alignment );
mFilterByMapToolButton->setChecked( mLegend->legendFilterByMapEnabled() );
mColumnCountSpinBox->setValue( mLegend->columnCount() );
mSplitLayerCheckBox->setChecked( mLegend->splitLayer() );
mEqualColumnWidthCheckBox->setChecked( mLegend->equalColumnWidth() );
mSymbolWidthSpinBox->setValue( mLegend->symbolWidth() );
mSymbolHeightSpinBox->setValue( mLegend->symbolHeight() );
mWmsLegendWidthSpinBox->setValue( mLegend->wmsLegendWidth() );
mWmsLegendHeightSpinBox->setValue( mLegend->wmsLegendHeight() );
mTitleSpaceBottomSpinBox->setValue( mLegend->style( QgsLegendStyle::Title ).margin( QgsLegendStyle::Bottom ) );
mGroupSpaceSpinBox->setValue( mLegend->style( QgsLegendStyle::Group ).margin( QgsLegendStyle::Top ) );
mLayerSpaceSpinBox->setValue( mLegend->style( QgsLegendStyle::Subgroup ).margin( QgsLegendStyle::Top ) );
// We keep Symbol and SymbolLabel Top in sync for now
mSymbolSpaceSpinBox->setValue( mLegend->style( QgsLegendStyle::Symbol ).margin( QgsLegendStyle::Top ) );
mIconLabelSpaceSpinBox->setValue( mLegend->style( QgsLegendStyle::SymbolLabel ).margin( QgsLegendStyle::Left ) );
mBoxSpaceSpinBox->setValue( mLegend->boxSpace() );
mColumnSpaceSpinBox->setValue( mLegend->columnSpace() );
mLineSpacingSpinBox->setValue( mLegend->lineSpacing() );
mRasterStrokeGroupBox->setChecked( mLegend->drawRasterStroke() );
mRasterStrokeWidthSpinBox->setValue( mLegend->rasterStrokeWidth() );
mRasterStrokeColorButton->setColor( mLegend->rasterStrokeColor() );
mCheckBoxAutoUpdate->setChecked( mLegend->autoUpdateModel() );
mCheckboxResizeContents->setChecked( mLegend->resizeToContents() );
const QgsComposerMap *map = mLegend->composerMap();
mMapComboBox->setItem( map );
mFontColorButton->setColor( mLegend->fontColor() );
blockAllSignals( false );
on_mCheckBoxAutoUpdate_stateChanged( mLegend->autoUpdateModel() ? Qt::Checked : Qt::Unchecked );
updateDataDefinedButton( mLegendTitleDDBtn );
updateDataDefinedButton( mColumnsDDBtn );
}
void QgsComposerLegendWidget::on_mWrapCharLineEdit_textChanged( const QString &text )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Item wrapping changed" ) );
mLegend->setWrapChar( text );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mTitleLineEdit_textChanged( const QString &text )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend title changed" ), QgsComposerMergeCommand::ComposerLegendText );
mLegend->setTitle( text );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mTitleAlignCombo_currentIndexChanged( int index )
{
if ( mLegend )
{
Qt::AlignmentFlag alignment = index == 0 ? Qt::AlignLeft : index == 1 ? Qt::AlignHCenter : Qt::AlignRight;
mLegend->beginCommand( tr( "Legend title alignment changed" ) );
mLegend->setTitleAlignment( alignment );
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mColumnCountSpinBox_valueChanged( int c )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend column count" ), QgsComposerMergeCommand::LegendColumnCount );
mLegend->setColumnCount( c );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
mSplitLayerCheckBox->setEnabled( c > 1 );
mEqualColumnWidthCheckBox->setEnabled( c > 1 );
}
void QgsComposerLegendWidget::on_mSplitLayerCheckBox_toggled( bool checked )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend split layers" ), QgsComposerMergeCommand::LegendSplitLayer );
mLegend->setSplitLayer( checked );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mEqualColumnWidthCheckBox_toggled( bool checked )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend equal column width" ), QgsComposerMergeCommand::LegendEqualColumnWidth );
mLegend->setEqualColumnWidth( checked );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mSymbolWidthSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend symbol width" ), QgsComposerMergeCommand::LegendSymbolWidth );
mLegend->setSymbolWidth( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mSymbolHeightSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend symbol height" ), QgsComposerMergeCommand::LegendSymbolHeight );
mLegend->setSymbolHeight( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mWmsLegendWidthSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Wms Legend width" ), QgsComposerMergeCommand::LegendWmsLegendWidth );
mLegend->setWmsLegendWidth( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mWmsLegendHeightSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Wms Legend height" ), QgsComposerMergeCommand::LegendWmsLegendHeight );
mLegend->setWmsLegendHeight( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mTitleSpaceBottomSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend title space bottom" ), QgsComposerMergeCommand::LegendTitleSpaceBottom );
mLegend->rstyle( QgsLegendStyle::Title ).setMargin( QgsLegendStyle::Bottom, d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mGroupSpaceSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend group space" ), QgsComposerMergeCommand::LegendGroupSpace );
mLegend->rstyle( QgsLegendStyle::Group ).setMargin( QgsLegendStyle::Top, d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mLayerSpaceSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend layer space" ), QgsComposerMergeCommand::LegendLayerSpace );
mLegend->rstyle( QgsLegendStyle::Subgroup ).setMargin( QgsLegendStyle::Top, d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mSymbolSpaceSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend symbol space" ), QgsComposerMergeCommand::LegendSymbolSpace );
// We keep Symbol and SymbolLabel Top in sync for now
mLegend->rstyle( QgsLegendStyle::Symbol ).setMargin( QgsLegendStyle::Top, d );
mLegend->rstyle( QgsLegendStyle::SymbolLabel ).setMargin( QgsLegendStyle::Top, d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mIconLabelSpaceSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend icon label space" ), QgsComposerMergeCommand::LegendIconSymbolSpace );
mLegend->rstyle( QgsLegendStyle::SymbolLabel ).setMargin( QgsLegendStyle::Left, d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mTitleFontButton_clicked()
{
if ( mLegend )
{
bool ok;
QFont newFont = QgisGui::getFont( ok, mLegend->style( QgsLegendStyle::Title ).font() );
if ( ok )
{
mLegend->beginCommand( tr( "Title font changed" ) );
mLegend->setStyleFont( QgsLegendStyle::Title, newFont );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
}
void QgsComposerLegendWidget::on_mGroupFontButton_clicked()
{
if ( mLegend )
{
bool ok;
QFont newFont = QgisGui::getFont( ok, mLegend->style( QgsLegendStyle::Group ).font() );
if ( ok )
{
mLegend->beginCommand( tr( "Legend group font changed" ) );
mLegend->setStyleFont( QgsLegendStyle::Group, newFont );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
}
void QgsComposerLegendWidget::on_mLayerFontButton_clicked()
{
if ( mLegend )
{
bool ok;
QFont newFont = QgisGui::getFont( ok, mLegend->style( QgsLegendStyle::Subgroup ).font() );
if ( ok )
{
mLegend->beginCommand( tr( "Legend layer font changed" ) );
mLegend->setStyleFont( QgsLegendStyle::Subgroup, newFont );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
}
void QgsComposerLegendWidget::on_mItemFontButton_clicked()
{
if ( mLegend )
{
bool ok;
QFont newFont = QgisGui::getFont( ok, mLegend->style( QgsLegendStyle::SymbolLabel ).font() );
if ( ok )
{
mLegend->beginCommand( tr( "Legend item font changed" ) );
mLegend->setStyleFont( QgsLegendStyle::SymbolLabel, newFont );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
}
void QgsComposerLegendWidget::on_mFontColorButton_colorChanged( const QColor &newFontColor )
{
if ( !mLegend )
{
return;
}
mLegend->beginCommand( tr( "Legend font color changed" ), QgsComposerMergeCommand::LegendFontColor );
mLegend->setFontColor( newFontColor );
mLegend->update();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mBoxSpaceSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend box space" ), QgsComposerMergeCommand::LegendBoxSpace );
mLegend->setBoxSpace( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mColumnSpaceSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend box space" ), QgsComposerMergeCommand::LegendColumnSpace );
mLegend->setColumnSpace( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mLineSpacingSpinBox_valueChanged( double d )
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend line space" ), QgsComposerMergeCommand::LegendLineSpacing );
mLegend->setLineSpacing( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
}
static void _moveLegendNode( QgsLayerTreeLayer *nodeLayer, int legendNodeIndex, int offset )
{
QList<int> order = QgsMapLayerLegendUtils::legendNodeOrder( nodeLayer );
if ( legendNodeIndex < 0 || legendNodeIndex >= order.count() )
return;
if ( legendNodeIndex + offset < 0 || legendNodeIndex + offset >= order.count() )
return;
int id = order.takeAt( legendNodeIndex );
order.insert( legendNodeIndex + offset, id );
QgsMapLayerLegendUtils::setLegendNodeOrder( nodeLayer, order );
}
void QgsComposerLegendWidget::on_mMoveDownToolButton_clicked()
{
if ( !mLegend )
{
return;
}
QModelIndex index = mItemTreeView->selectionModel()->currentIndex();
QModelIndex parentIndex = index.parent();
if ( !index.isValid() || index.row() == mItemTreeView->model()->rowCount( parentIndex ) - 1 )
return;
QgsLayerTreeNode *node = mItemTreeView->layerTreeModel()->index2node( index );
QgsLayerTreeModelLegendNode *legendNode = mItemTreeView->layerTreeModel()->index2legendNode( index );
if ( !node && !legendNode )
return;
mLegend->beginCommand( QStringLiteral( "Moved legend item down" ) );
if ( node )
{
QgsLayerTreeGroup *parentGroup = QgsLayerTree::toGroup( node->parent() );
parentGroup->insertChildNode( index.row() + 2, node->clone() );
parentGroup->removeChildNode( node );
}
else // legend node
{
_moveLegendNode( legendNode->layerNode(), _unfilteredLegendNodeIndex( legendNode ), 1 );
mItemTreeView->layerTreeModel()->refreshLayerLegend( legendNode->layerNode() );
}
mItemTreeView->setCurrentIndex( mItemTreeView->layerTreeModel()->index( index.row() + 1, 0, parentIndex ) );
mLegend->update();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mMoveUpToolButton_clicked()
{
if ( !mLegend )
{
return;
}
QModelIndex index = mItemTreeView->selectionModel()->currentIndex();
QModelIndex parentIndex = index.parent();
if ( !index.isValid() || index.row() == 0 )
return;
QgsLayerTreeNode *node = mItemTreeView->layerTreeModel()->index2node( index );
QgsLayerTreeModelLegendNode *legendNode = mItemTreeView->layerTreeModel()->index2legendNode( index );
if ( !node && !legendNode )
return;
mLegend->beginCommand( QStringLiteral( "Moved legend item up" ) );
if ( node )
{
QgsLayerTreeGroup *parentGroup = QgsLayerTree::toGroup( node->parent() );
parentGroup->insertChildNode( index.row() - 1, node->clone() );
parentGroup->removeChildNode( node );
}
else // legend node
{
_moveLegendNode( legendNode->layerNode(), _unfilteredLegendNodeIndex( legendNode ), -1 );
mItemTreeView->layerTreeModel()->refreshLayerLegend( legendNode->layerNode() );
}
mItemTreeView->setCurrentIndex( mItemTreeView->layerTreeModel()->index( index.row() - 1, 0, parentIndex ) );
mLegend->update();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mCheckBoxAutoUpdate_stateChanged( int state )
{
mLegend->beginCommand( QStringLiteral( "Auto update changed" ) );
mLegend->setAutoUpdateModel( state == Qt::Checked );
mLegend->updateItem();
mLegend->endCommand();
// do not allow editing of model if auto update is on - we would modify project's layer tree
QList<QWidget *> widgets;
widgets << mMoveDownToolButton << mMoveUpToolButton << mRemoveToolButton << mAddToolButton
<< mEditPushButton << mCountToolButton << mUpdateAllPushButton << mAddGroupToolButton
<< mExpressionFilterButton;
Q_FOREACH ( QWidget *w, widgets )
w->setEnabled( state != Qt::Checked );
if ( state == Qt::Unchecked )
{
// update widgets state based on current selection
selectedChanged( QModelIndex(), QModelIndex() );
}
}
void QgsComposerLegendWidget::composerMapChanged( QgsComposerItem *item )
{
if ( !mLegend )
{
return;
}
const QgsComposition *comp = mLegend->composition();
if ( !comp )
{
return;
}
QgsComposerMap *map = dynamic_cast< QgsComposerMap * >( item );
if ( map )
{
mLegend->beginCommand( tr( "Legend map changed" ) );
mLegend->setComposerMap( map );
mLegend->updateItem();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mCheckboxResizeContents_toggled( bool checked )
{
if ( !mLegend )
{
return;
}
mLegend->beginCommand( tr( "Legend resize to contents" ) );
mLegend->setResizeToContents( checked );
if ( checked )
mLegend->adjustBoxSize();
mLegend->updateItem();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mRasterStrokeGroupBox_toggled( bool state )
{
if ( !mLegend )
{
return;
}
mLegend->beginCommand( tr( "Legend raster borders" ) );
mLegend->setDrawRasterStroke( state );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mRasterStrokeWidthSpinBox_valueChanged( double d )
{
if ( !mLegend )
{
return;
}
mLegend->beginCommand( tr( "Legend raster stroke width" ), QgsComposerMergeCommand::LegendRasterStrokeWidth );
mLegend->setRasterStrokeWidth( d );
mLegend->adjustBoxSize();
mLegend->update();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mRasterStrokeColorButton_colorChanged( const QColor &newColor )
{
if ( !mLegend )
{
return;
}
mLegend->beginCommand( tr( "Legend raster stroke color" ), QgsComposerMergeCommand::LegendRasterStrokeColor );
mLegend->setRasterStrokeColor( newColor );
mLegend->update();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mAddToolButton_clicked()
{
if ( !mLegend )
{
return;
}
QgisApp *app = QgisApp::instance();
if ( !app )
{
return;
}
QgsMapCanvas *canvas = app->mapCanvas();
if ( canvas )
{
QList<QgsMapLayer *> layers = canvas->layers();
QgsComposerLegendLayersDialog addDialog( layers, this );
if ( addDialog.exec() == QDialog::Accepted )
{
QgsMapLayer *layer = addDialog.selectedLayer();
if ( layer )
{
mLegend->beginCommand( QStringLiteral( "Legend item added" ) );
mLegend->model()->rootGroup()->addLayer( layer );
mLegend->endCommand();
}
}
}
}
void QgsComposerLegendWidget::on_mRemoveToolButton_clicked()
{
if ( !mLegend )
{
return;
}
QItemSelectionModel *selectionModel = mItemTreeView->selectionModel();
if ( !selectionModel )
{
return;
}
mLegend->beginCommand( QStringLiteral( "Legend item removed" ) );
QList<QPersistentModelIndex> indexes;
Q_FOREACH ( const QModelIndex &index, selectionModel->selectedIndexes() )
indexes << index;
// first try to remove legend nodes
QHash<QgsLayerTreeLayer *, QList<int> > nodesWithRemoval;
Q_FOREACH ( const QPersistentModelIndex &index, indexes )
{
if ( QgsLayerTreeModelLegendNode *legendNode = mItemTreeView->layerTreeModel()->index2legendNode( index ) )
{
QgsLayerTreeLayer *nodeLayer = legendNode->layerNode();
nodesWithRemoval[nodeLayer].append( _unfilteredLegendNodeIndex( legendNode ) );
}
}
Q_FOREACH ( QgsLayerTreeLayer *nodeLayer, nodesWithRemoval.keys() )
{
QList<int> toDelete = nodesWithRemoval[nodeLayer];
std::sort( toDelete.begin(), toDelete.end(), std::greater<int>() );
QList<int> order = QgsMapLayerLegendUtils::legendNodeOrder( nodeLayer );
Q_FOREACH ( int i, toDelete )
{
if ( i >= 0 && i < order.count() )
order.removeAt( i );
}
QgsMapLayerLegendUtils::setLegendNodeOrder( nodeLayer, order );
mItemTreeView->layerTreeModel()->refreshLayerLegend( nodeLayer );
}
// then remove layer tree nodes
Q_FOREACH ( const QPersistentModelIndex &index, indexes )
{
if ( index.isValid() && mItemTreeView->layerTreeModel()->index2node( index ) )
mLegend->model()->removeRow( index.row(), index.parent() );
}
mLegend->adjustBoxSize();
mLegend->updateItem();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mEditPushButton_clicked()
{
if ( !mLegend )
{
return;
}
QModelIndex idx = mItemTreeView->selectionModel()->currentIndex();
on_mItemTreeView_doubleClicked( idx );
}
void QgsComposerLegendWidget::resetLayerNodeToDefaults()
{
if ( !mLegend )
{
return;
}
//get current item
QModelIndex currentIndex = mItemTreeView->currentIndex();
if ( !currentIndex.isValid() )
{
return;
}
QgsLayerTreeLayer *nodeLayer = nullptr;
if ( QgsLayerTreeNode *node = mItemTreeView->layerTreeModel()->index2node( currentIndex ) )
{
if ( QgsLayerTree::isLayer( node ) )
nodeLayer = QgsLayerTree::toLayer( node );
}
if ( QgsLayerTreeModelLegendNode *legendNode = mItemTreeView->layerTreeModel()->index2legendNode( currentIndex ) )
{
nodeLayer = legendNode->layerNode();
}
if ( !nodeLayer )
return;
mLegend->beginCommand( tr( "Legend updated" ) );
Q_FOREACH ( const QString &key, nodeLayer->customProperties() )
{
if ( key.startsWith( QLatin1String( "legend/" ) ) )
nodeLayer->removeCustomProperty( key );
}
mItemTreeView->layerTreeModel()->refreshLayerLegend( nodeLayer );
mLegend->updateItem();
mLegend->adjustBoxSize();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mCountToolButton_clicked( bool checked )
{
QgsDebugMsg( "Entered." );
if ( !mLegend )
{
return;
}
//get current item
QModelIndex currentIndex = mItemTreeView->currentIndex();
if ( !currentIndex.isValid() )
{
return;
}
QgsLayerTreeNode *currentNode = mItemTreeView->currentNode();
if ( !QgsLayerTree::isLayer( currentNode ) )
return;
mLegend->beginCommand( tr( "Legend updated" ) );
currentNode->setCustomProperty( QStringLiteral( "showFeatureCount" ), checked ? 1 : 0 );
mLegend->updateItem();
mLegend->adjustBoxSize();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mFilterByMapToolButton_toggled( bool checked )
{
mLegend->beginCommand( tr( "Legend updated" ) );
mLegend->setLegendFilterByMapEnabled( checked );
mLegend->adjustBoxSize();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mExpressionFilterButton_toggled( bool checked )
{
if ( !mLegend )
{
return;
}
//get current item
QModelIndex currentIndex = mItemTreeView->currentIndex();
if ( !currentIndex.isValid() )
{
return;
}
QgsLayerTreeNode *currentNode = mItemTreeView->currentNode();
if ( !QgsLayerTree::isLayer( currentNode ) )
return;
QgsLayerTreeUtils::setLegendFilterByExpression( *qobject_cast<QgsLayerTreeLayer *>( currentNode ),
mExpressionFilterButton->expressionText(),
checked );
mLegend->beginCommand( tr( "Legend updated" ) );
mLegend->updateItem();
mLegend->adjustBoxSize();
mLegend->endCommand();
}
void QgsComposerLegendWidget::on_mUpdateAllPushButton_clicked()
{
updateLegend();
}
void QgsComposerLegendWidget::on_mAddGroupToolButton_clicked()
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend group added" ) );
mLegend->model()->rootGroup()->addGroup( tr( "Group" ) );
mLegend->updateItem();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::on_mFilterLegendByAtlasCheckBox_toggled( bool toggled )
{
if ( mLegend )
{
mLegend->setLegendFilterOutAtlas( toggled );
// force update of legend when in preview mode
if ( mLegend->composition()->atlasMode() == QgsComposition::PreviewAtlas )
{
mLegend->composition()->atlasComposition().refreshFeature();
}
}
}
void QgsComposerLegendWidget::updateLegend()
{
if ( mLegend )
{
mLegend->beginCommand( tr( "Legend updated" ) );
// this will reset the model completely, losing any changes
mLegend->setAutoUpdateModel( true );
mLegend->setAutoUpdateModel( false );
mLegend->updateItem();
mLegend->endCommand();
}
}
void QgsComposerLegendWidget::blockAllSignals( bool b )
{
mTitleLineEdit->blockSignals( b );
mTitleAlignCombo->blockSignals( b );
mItemTreeView->blockSignals( b );
mCheckBoxAutoUpdate->blockSignals( b );
mMapComboBox->blockSignals( b );
mFilterByMapToolButton->blockSignals( b );
mColumnCountSpinBox->blockSignals( b );
mSplitLayerCheckBox->blockSignals( b );
mEqualColumnWidthCheckBox->blockSignals( b );
mSymbolWidthSpinBox->blockSignals( b );
mSymbolHeightSpinBox->blockSignals( b );
mGroupSpaceSpinBox->blockSignals( b );
mLayerSpaceSpinBox->blockSignals( b );
mSymbolSpaceSpinBox->blockSignals( b );
mIconLabelSpaceSpinBox->blockSignals( b );
mBoxSpaceSpinBox->blockSignals( b );
mColumnSpaceSpinBox->blockSignals( b );
mFontColorButton->blockSignals( b );
mRasterStrokeGroupBox->blockSignals( b );
mRasterStrokeColorButton->blockSignals( b );
mRasterStrokeWidthSpinBox->blockSignals( b );
mWmsLegendWidthSpinBox->blockSignals( b );
mWmsLegendHeightSpinBox->blockSignals( b );
mCheckboxResizeContents->blockSignals( b );
mTitleSpaceBottomSpinBox->blockSignals( b );
}
void QgsComposerLegendWidget::selectedChanged( const QModelIndex ¤t, const QModelIndex &previous )
{
Q_UNUSED( current );
Q_UNUSED( previous );
if ( mLegend && mLegend->autoUpdateModel() )
return;
mCountToolButton->setChecked( false );
mCountToolButton->setEnabled( false );
mExpressionFilterButton->blockSignals( true );
mExpressionFilterButton->setChecked( false );
mExpressionFilterButton->setEnabled( false );
mExpressionFilterButton->blockSignals( false );
QgsLayerTreeNode *currentNode = mItemTreeView->currentNode();
if ( !QgsLayerTree::isLayer( currentNode ) )
return;
QgsLayerTreeLayer *currentLayerNode = QgsLayerTree::toLayer( currentNode );
QgsVectorLayer *vl = qobject_cast<QgsVectorLayer *>( currentLayerNode->layer() );
if ( !vl )
return;
mCountToolButton->setChecked( currentNode->customProperty( QStringLiteral( "showFeatureCount" ), 0 ).toInt() );
mCountToolButton->setEnabled( true );
bool exprEnabled;
QString expr = QgsLayerTreeUtils::legendFilterByExpression( *qobject_cast<QgsLayerTreeLayer *>( currentNode ), &exprEnabled );
mExpressionFilterButton->blockSignals( true );
mExpressionFilterButton->setExpressionText( expr );
mExpressionFilterButton->setVectorLayer( vl );
mExpressionFilterButton->setEnabled( true );
mExpressionFilterButton->setChecked( exprEnabled );
mExpressionFilterButton->blockSignals( false );
}
void QgsComposerLegendWidget::setCurrentNodeStyleFromAction()
{
QAction *a = qobject_cast<QAction *>( sender() );
if ( !a || !mItemTreeView->currentNode() )
return;
QgsLegendRenderer::setNodeLegendStyle( mItemTreeView->currentNode(), ( QgsLegendStyle::Style ) a->data().toInt() );
mLegend->updateItem();
}
void QgsComposerLegendWidget::updateFilterLegendByAtlasButton()
{
const QgsAtlasComposition &atlas = mLegend->composition()->atlasComposition();
mFilterLegendByAtlasCheckBox->setEnabled( atlas.enabled() && atlas.coverageLayer() && atlas.coverageLayer()->geometryType() == QgsWkbTypes::PolygonGeometry );
}
void QgsComposerLegendWidget::on_mItemTreeView_doubleClicked( const QModelIndex &idx )
{
if ( !mLegend || !idx.isValid() )
{
return;