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qgssymbollevelsdialog.cpp
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qgssymbollevelsdialog.cpp
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/***************************************************************************
qgssymbollevelsdialog.cpp
---------------------
begin : November 2009
copyright : (C) 2009 by Martin Dobias
email : wonder dot sk at gmail dot com
***************************************************************************
* *
* 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 "qgssymbollevelsdialog.h"
#include "qgssymbollayerutils.h"
#include "qgssymbollayer.h"
#include "qgssymbol.h"
#include "qgssettings.h"
#include "qgsguiutils.h"
#include <QTableWidgetItem>
#include <QItemDelegate>
#include <QSpinBox>
#include <QDialogButtonBox>
////////////////
QgsSymbolLevelsWidget::QgsSymbolLevelsWidget( QgsFeatureRenderer *renderer, bool usingSymbolLevels, QWidget *parent )
: QgsSymbolLevelsWidget( renderer->legendSymbolItems(), usingSymbolLevels, parent )
{
mRenderer = renderer;
}
QgsSymbolLevelsWidget::QgsSymbolLevelsWidget( const QgsLegendSymbolList &symbols, bool usingSymbolLevels, QWidget *parent )
: QgsPanelWidget( parent )
, mForceOrderingEnabled( false )
{
setupUi( this );
tableLevels->setItemDelegate( new SpinBoxDelegate( this ) );
chkEnable->setChecked( usingSymbolLevels );
connect( chkEnable, &QAbstractButton::clicked, this, &QgsSymbolLevelsWidget::updateUi );
// only consider entries with symbols
for ( const QgsLegendSymbolItem &item : symbols )
{
if ( item.symbol() )
mLegendSymbols << item;
}
const int iconSize = QgsGuiUtils::scaleIconSize( 16 );
int maxLayers = 0;
tableLevels->setRowCount( mLegendSymbols.count() );
for ( int i = 0; i < mLegendSymbols.count(); i++ )
{
QgsSymbol *sym = mLegendSymbols.at( i ).symbol();
// set icons for the rows
QIcon icon = QgsSymbolLayerUtils::symbolPreviewIcon( sym, QSize( iconSize, iconSize ) );
tableLevels->setVerticalHeaderItem( i, new QTableWidgetItem( icon, QString() ) );
// find out max. number of layers per symbol
int layers = sym->symbolLayerCount();
if ( layers > maxLayers )
maxLayers = layers;
}
tableLevels->setColumnCount( maxLayers + 1 );
tableLevels->setHorizontalHeaderItem( 0, new QTableWidgetItem( QString() ) );
for ( int i = 0; i < maxLayers; i++ )
{
QString name = tr( "Layer %1" ).arg( i );
tableLevels->setHorizontalHeaderItem( i + 1, new QTableWidgetItem( name ) );
}
mMaxLayers = maxLayers;
updateUi();
if ( !usingSymbolLevels )
setDefaultLevels();
populateTable();
connect( tableLevels, &QTableWidget::cellChanged, this, &QgsSymbolLevelsWidget::renderingPassChanged );
}
void QgsSymbolLevelsWidget::populateTable()
{
const int iconSize = QgsGuiUtils::scaleIconSize( 16 );
for ( int row = 0; row < mLegendSymbols.count(); row++ )
{
QgsSymbol *sym = mLegendSymbols.at( row ).symbol();
const QString label = mLegendSymbols.at( row ).label();
QTableWidgetItem *itemLabel = new QTableWidgetItem( label );
itemLabel->setFlags( itemLabel->flags() ^ Qt::ItemIsEditable );
tableLevels->setItem( row, 0, itemLabel );
for ( int layer = 0; layer < mMaxLayers; layer++ )
{
QTableWidgetItem *item = nullptr;
if ( layer >= sym->symbolLayerCount() )
{
item = new QTableWidgetItem();
item->setFlags( Qt::ItemFlags() );
}
else
{
const QgsSymbolLayer *sl = sym->symbolLayer( layer );
const QIcon icon = QgsSymbolLayerUtils::symbolLayerPreviewIcon( sl, QgsUnitTypes::RenderMillimeters, QSize( iconSize, iconSize ) );
item = new QTableWidgetItem( icon, QString::number( sl->renderingPass() ) );
}
tableLevels->setItem( row, layer + 1, item );
tableLevels->resizeColumnToContents( 0 );
}
}
}
void QgsSymbolLevelsWidget::updateUi()
{
tableLevels->setEnabled( chkEnable->isChecked() );
emit widgetChanged();
}
void QgsSymbolLevelsWidget::apply()
{
if ( !mRenderer )
return;
for ( const QgsLegendSymbolItem &legendSymbol : qgis::as_const( mLegendSymbols ) )
{
QgsSymbol *sym = legendSymbol.symbol();
for ( int layer = 0; layer < sym->symbolLayerCount(); layer++ )
{
mRenderer->setLegendSymbolItem( legendSymbol.ruleKey(), sym->clone() );
}
}
mRenderer->setUsingSymbolLevels( usingLevels() );
}
void QgsSymbolLevelsWidget::setDefaultLevels()
{
for ( const QgsLegendSymbolItem &item : qgis::as_const( mLegendSymbols ) )
{
QgsSymbol *sym = item.symbol();
for ( int layer = 0; layer < sym->symbolLayerCount(); layer++ )
{
sym->symbolLayer( layer )->setRenderingPass( layer );
}
}
}
bool QgsSymbolLevelsWidget::usingLevels() const
{
return chkEnable->isChecked();
}
QgsLegendSymbolList QgsSymbolLevelsWidget::symbolLevels() const
{
return mLegendSymbols;
}
void QgsSymbolLevelsWidget::renderingPassChanged( int row, int column )
{
if ( row < 0 || row >= mLegendSymbols.count() )
return;
QgsSymbol *sym = mLegendSymbols.at( row ).symbol();
if ( column < 0 || column > sym->symbolLayerCount() )
return;
sym->symbolLayer( column - 1 )->setRenderingPass( tableLevels->item( row, column )->text().toInt() );
emit widgetChanged();
}
void QgsSymbolLevelsWidget::setForceOrderingEnabled( bool enabled )
{
mForceOrderingEnabled = enabled;
if ( enabled )
{
chkEnable->setChecked( true );
chkEnable->hide();
}
else
chkEnable->show();
}
//
// QgsSymbolLevelsDialog
//
QgsSymbolLevelsDialog::QgsSymbolLevelsDialog( QgsFeatureRenderer *renderer, bool usingSymbolLevels, QWidget *parent )
: QDialog( parent )
{
QVBoxLayout *vLayout = new QVBoxLayout();
mWidget = new QgsSymbolLevelsWidget( renderer, usingSymbolLevels );
vLayout->addWidget( mWidget );
QDialogButtonBox *bbox = new QDialogButtonBox( QDialogButtonBox::Cancel | QDialogButtonBox::Help | QDialogButtonBox::Ok, Qt::Horizontal );
connect( bbox, &QDialogButtonBox::accepted, this, &QgsSymbolLevelsDialog::accept );
connect( bbox, &QDialogButtonBox::rejected, this, &QgsSymbolLevelsDialog::reject );
connect( bbox, &QDialogButtonBox::helpRequested, this, &QgsSymbolLevelsDialog::showHelp );
vLayout->addWidget( bbox );
setLayout( vLayout );
setWindowTitle( tr( "Symbol Levels" ) );
}
void QgsSymbolLevelsDialog::setForceOrderingEnabled( bool enabled )
{
mWidget->setForceOrderingEnabled( enabled );
}
bool QgsSymbolLevelsDialog::usingLevels() const
{
return mWidget->usingLevels();
}
QgsLegendSymbolList QgsSymbolLevelsDialog::symbolLevels() const
{
return mWidget->symbolLevels();
}
void QgsSymbolLevelsDialog::showHelp()
{
QgsHelp::openHelp( QStringLiteral( "working_with_vector/vector_properties.html#symbols-levels" ) );
}
/// @cond PRIVATE
QWidget *SpinBoxDelegate::createEditor( QWidget *parent, const QStyleOptionViewItem &, const QModelIndex & ) const
{
QSpinBox *editor = new QSpinBox( parent );
editor->setMinimum( 0 );
editor->setMaximum( 999 );
return editor;
}
void SpinBoxDelegate::setEditorData( QWidget *editor, const QModelIndex &index ) const
{
int value = index.model()->data( index, Qt::EditRole ).toInt();
QSpinBox *spinBox = static_cast<QSpinBox *>( editor );
spinBox->setValue( value );
}
void SpinBoxDelegate::setModelData( QWidget *editor, QAbstractItemModel *model, const QModelIndex &index ) const
{
QSpinBox *spinBox = static_cast<QSpinBox *>( editor );
spinBox->interpretText();
int value = spinBox->value();
model->setData( index, value, Qt::EditRole );
}
void SpinBoxDelegate::updateEditorGeometry( QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex & ) const
{
editor->setGeometry( option.rect );
}
///@endcond