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use a model for select map layer style categories (#7907)
this avoids cluttering QgsMapLayer and reduces a bit code redundancy
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| /*************************************************************************** | ||
| qgsmaplayerstylecategoriesmodel.cpp | ||
| -------------------------------------- | ||
| Date : September 2018 | ||
| Copyright : (C) 2018 by Denis Rouzaud | ||
| Email : denis@opengis.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. * | ||
| * * | ||
| ***************************************************************************/ | ||
|
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| #include "qgsmaplayerstylecategoriesmodel.h" | ||
|
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| QgsMapLayerStyleCategoriesModel::QgsMapLayerStyleCategoriesModel( QObject *parent ) | ||
| : QAbstractListModel( parent ) | ||
| { | ||
| mCategoryList = qgsEnumMap<QgsMapLayer::StyleCategory>().keys(); | ||
| // move All categories to top | ||
| mCategoryList.move( mCategoryList.indexOf( QgsMapLayer::AllStyleCategories ), 0 ); | ||
| } | ||
|
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| void QgsMapLayerStyleCategoriesModel::setCategories( QgsMapLayer::StyleCategories categories ) | ||
| { | ||
| if ( mCategories == categories ) | ||
| return; | ||
|
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| beginResetModel(); | ||
| mCategories = categories; | ||
| endResetModel(); | ||
| } | ||
|
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| QgsMapLayer::StyleCategories QgsMapLayerStyleCategoriesModel::categories() const | ||
| { | ||
| return mCategories; | ||
| } | ||
|
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| void QgsMapLayerStyleCategoriesModel::setShowAllCategories( bool showAll ) | ||
| { | ||
| beginResetModel(); | ||
| mShowAllCategories = showAll; | ||
| endResetModel(); | ||
| } | ||
|
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| QgsMapLayer::StyleCategory QgsMapLayerStyleCategoriesModel::index2category( const QModelIndex &index ) const | ||
| { | ||
| return mCategoryList.at( index.row() - ( mShowAllCategories ? 0 : 1 ) ); | ||
| } | ||
|
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||
| int QgsMapLayerStyleCategoriesModel::rowCount( const QModelIndex & ) const | ||
| { | ||
| int count = mCategoryList.count(); | ||
| if ( !mShowAllCategories ) | ||
| count--; | ||
| return count; | ||
| } | ||
|
|
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| int QgsMapLayerStyleCategoriesModel::columnCount( const QModelIndex & ) const | ||
| { | ||
| return 1; | ||
| } | ||
|
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| QVariant QgsMapLayerStyleCategoriesModel::data( const QModelIndex &index, int role ) const | ||
| { | ||
| if ( !index.isValid() || index.row() >= rowCount() ) | ||
| return QVariant(); | ||
|
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| QgsMapLayer::StyleCategory category = index2category( index ); | ||
|
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||
| switch ( category ) | ||
| { | ||
| case QgsMapLayer::LayerConfiguration: | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Layer Configuration" ); | ||
| case Qt::ToolTipRole: | ||
| return tr( "Identifiable, removable, searchable, display expression, read-only" ); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/system.svg" ) ); | ||
| } | ||
| case QgsMapLayer::Symbology : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Symbology" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/symbology.svg" ) ); | ||
| } | ||
| case QgsMapLayer::Symbology3D: | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "3D Symbology" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/3d.svg" ) ); | ||
| } | ||
| case QgsMapLayer::Labeling : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Labels" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/labels.svg" ) ); | ||
| } | ||
| case QgsMapLayer::Fields : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Fields" ); | ||
| case Qt::ToolTipRole: | ||
| return tr( "Aliases, widgets, WMS/WFS, expressions, constraints, virtual fields" ); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/mSourceFields" ) ); | ||
| } | ||
| case QgsMapLayer::Forms : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Forms" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/mActionFormView" ) ); | ||
| } | ||
| case QgsMapLayer::Actions : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Actions" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/action.svg" ) ); | ||
| } | ||
| case QgsMapLayer::MapTips : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Map Tips" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/display.svg" ) ); | ||
| } | ||
| case QgsMapLayer::Diagrams : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Diagrams" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/diagram.svg" ) ); | ||
| } | ||
| case QgsMapLayer::AttributeTable : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Attribute Table Settings" ); | ||
| case Qt::ToolTipRole: | ||
| return tr( "Choice and order of columns, conditional styling" ); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/mActionOpenTable" ) ); | ||
| } | ||
| case QgsMapLayer::Rendering : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Rendering" ); | ||
| case Qt::ToolTipRole: | ||
| return tr( "Scale visibility, simplify method, opacity" ); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/rendering.svg" ) ); | ||
| } | ||
| case QgsMapLayer::CustomProperties : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "Custom Properties" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QgsApplication::getThemeIcon( QStringLiteral( "/mActionOptions.svg" ) ); | ||
| } | ||
| case QgsMapLayer::AllStyleCategories : | ||
| switch ( role ) | ||
| { | ||
| case Qt::DisplayRole: | ||
| return tr( "All Style Categories" ); | ||
| case Qt::ToolTipRole: | ||
| return QVariant(); | ||
| case Qt::DecorationRole: | ||
| return QVariant(); | ||
| } | ||
| } | ||
| return QVariant(); | ||
| } | ||
|
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||
| bool QgsMapLayerStyleCategoriesModel::setData( const QModelIndex &index, const QVariant &value, int role ) | ||
| { | ||
| if ( !index.isValid() || index.row() >= rowCount() ) | ||
| return false; | ||
|
|
||
| if ( role == Qt::CheckStateRole ) | ||
| { | ||
| QgsMapLayer::StyleCategory category = index2category( index ); | ||
| if ( value.value<Qt::CheckState>() == Qt::Checked ) | ||
| { | ||
| mCategories |= category; | ||
| emit dataChanged( index, index ); | ||
| return true; | ||
| } | ||
| else if ( value.value<Qt::CheckState>() == Qt::Unchecked ) | ||
| { | ||
| mCategories &= category; | ||
| emit dataChanged( index, index ); | ||
| return true; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
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|
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| Qt::ItemFlags QgsMapLayerStyleCategoriesModel::flags( const QModelIndex & ) const | ||
| { | ||
| return Qt::ItemIsEnabled | Qt::ItemIsUserCheckable; | ||
| } |
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