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Refactor composer table to a base class that has vector attribute tab…
…le and normal text table as subclasses git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13316 c8812cc2-4d05-0410-92ff-de0c093fc19c
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mhugent
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Apr 15, 2010
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,284 @@ | ||
| /*************************************************************************** | ||
| qgscomposerattributetable.cpp | ||
| ----------------------------- | ||
| begin : April 2010 | ||
| copyright : (C) 2010 by Marco Hugentobler | ||
| email : marco at hugis dot net | ||
| ***************************************************************************/ | ||
|
|
||
| /*************************************************************************** | ||
| * * | ||
| * 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 "qgscomposerattributetable.h" | ||
| #include "qgscomposermap.h" | ||
| #include "qgsmaplayerregistry.h" | ||
| #include "qgsvectorlayer.h" | ||
|
|
||
| QgsComposerAttributeTable::QgsComposerAttributeTable( QgsComposition* composition ): QgsComposerTable( composition ), mVectorLayer( 0 ), mComposerMap( 0 ), \ | ||
| mMaximumNumberOfFeatures( 5 ), mShowOnlyVisibleFeatures( true ) | ||
| { | ||
|
|
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| } | ||
|
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| QgsComposerAttributeTable::~QgsComposerAttributeTable() | ||
| { | ||
|
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| } | ||
|
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| void QgsComposerAttributeTable::paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget ) | ||
| { | ||
| if ( mComposerMap && mComposerMap->isDrawing() ) | ||
| { | ||
| return; | ||
| } | ||
| QgsComposerTable::paint( painter, itemStyle, pWidget ); | ||
| } | ||
|
|
||
| void QgsComposerAttributeTable::initializeAliasMap() | ||
| { | ||
| mFieldAliasMap.clear(); | ||
| if ( mVectorLayer ) | ||
| { | ||
| QgsFieldMap fieldMap = mVectorLayer->pendingFields(); | ||
| QgsFieldMap::const_iterator it = fieldMap.constBegin(); | ||
| for ( ; it != fieldMap.constEnd(); ++it ) | ||
| { | ||
| QString currentAlias = mVectorLayer->attributeAlias( it.key() ); | ||
| if ( !currentAlias.isEmpty() ) | ||
| { | ||
| mFieldAliasMap.insert( it.key(), currentAlias ); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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||
| void QgsComposerAttributeTable::setVectorLayer( QgsVectorLayer* vl ) | ||
| { | ||
| if ( vl != mVectorLayer ) | ||
| { | ||
| mDisplayAttributes.clear(); | ||
| mVectorLayer = vl; | ||
| initializeAliasMap(); | ||
| } | ||
| } | ||
|
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||
| void QgsComposerAttributeTable::setComposerMap( const QgsComposerMap* map ) | ||
| { | ||
| if ( mComposerMap ) | ||
| { | ||
| QObject::disconnect( mComposerMap, SIGNAL( extentChanged() ), this, SLOT( repaint() ) ); | ||
| } | ||
| mComposerMap = map; | ||
| if ( mComposerMap ) | ||
| { | ||
| QObject::connect( mComposerMap, SIGNAL( extentChanged() ), this, SLOT( repaint() ) ); | ||
| } | ||
| } | ||
|
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| bool QgsComposerAttributeTable::getFeatureAttributes( QList<QgsAttributeMap>& attributes ) | ||
| { | ||
| if ( !mVectorLayer ) | ||
| { | ||
| return false; | ||
| } | ||
| attributes.clear(); | ||
|
|
||
| QgsRectangle selectionRect; | ||
| if ( mComposerMap && mShowOnlyVisibleFeatures ) | ||
| { | ||
| selectionRect = mComposerMap->extent(); | ||
| } | ||
|
|
||
| if ( mDisplayAttributes.size() < 1 ) | ||
| { | ||
| mVectorLayer->select( mVectorLayer->pendingAllAttributesList(), selectionRect, false, true ); | ||
| } | ||
| else | ||
| { | ||
| mVectorLayer->select( mDisplayAttributes.toList(), selectionRect, false, true ); | ||
| } | ||
| QgsFeature f; | ||
| int counter = 0; | ||
| while ( mVectorLayer->nextFeature( f ) && counter < mMaximumNumberOfFeatures ) | ||
| { | ||
| attributes.push_back( f.attributeMap() ); | ||
| ++counter; | ||
| } | ||
| return true; | ||
| } | ||
|
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||
| QMap<int, QString> QgsComposerAttributeTable::getHeaderLabels() const | ||
| { | ||
| QMap<int, QString> header; | ||
| if ( mVectorLayer ) | ||
| { | ||
| QgsFieldMap vectorFields = mVectorLayer->pendingFields(); | ||
| QgsFieldMap::const_iterator fieldIt = vectorFields.constBegin(); | ||
| for ( ; fieldIt != vectorFields.constEnd(); ++fieldIt ) | ||
| { | ||
| if ( mDisplayAttributes.size() > 0 && !mDisplayAttributes.contains( fieldIt.key() ) ) | ||
| { | ||
| continue; | ||
| } | ||
| header.insert( fieldIt.key(), attributeDisplayName( fieldIt.key(), fieldIt.value().name() ) ); | ||
| } | ||
| } | ||
| return header; | ||
| } | ||
|
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| QString QgsComposerAttributeTable::attributeDisplayName( int attributeIndex, const QString& name ) const | ||
| { | ||
| QMap<int, QString>::const_iterator it = mFieldAliasMap.find( attributeIndex ); | ||
| if ( it != mFieldAliasMap.constEnd() ) | ||
| { | ||
| return it.value(); | ||
| } | ||
| else | ||
| { | ||
| return name; | ||
| } | ||
| } | ||
|
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||
| void QgsComposerAttributeTable::setSceneRect( const QRectF& rectangle ) | ||
| { | ||
| double titleHeight = 2 * mGridStrokeWidth + 2 * mLineTextDistance + fontAscentMillimeters( mHeaderFont ); | ||
| double attributeHeight = mGridStrokeWidth + 2 * mLineTextDistance + fontAscentMillimeters( mContentFont ); | ||
| if (( rectangle.height() - titleHeight ) > 0 ) | ||
| { | ||
| mMaximumNumberOfFeatures = ( rectangle.height() - titleHeight ) / attributeHeight; | ||
| } | ||
| else | ||
| { | ||
| mMaximumNumberOfFeatures = 0; | ||
| } | ||
| QgsComposerItem::setSceneRect( rectangle ); | ||
| emit maximumNumerOfFeaturesChanged( mMaximumNumberOfFeatures ); | ||
| } | ||
|
|
||
| bool QgsComposerAttributeTable::writeXML( QDomElement& elem, QDomDocument & doc ) const | ||
| { | ||
| QDomElement composerTableElem = doc.createElement( "ComposerAttributeTable" ); | ||
| composerTableElem.setAttribute( "showOnlyVisibleFeatures", mShowOnlyVisibleFeatures ); | ||
|
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| if ( mComposerMap ) | ||
| { | ||
| composerTableElem.setAttribute( "composerMap", mComposerMap->id() ); | ||
| } | ||
| else | ||
| { | ||
| composerTableElem.setAttribute( "composerMap", -1 ); | ||
| } | ||
| if ( mVectorLayer ) | ||
| { | ||
| composerTableElem.setAttribute( "vectorLayer", mVectorLayer->getLayerID() ); | ||
| } | ||
|
|
||
| //display attributes | ||
| QDomElement displayAttributesElem = doc.createElement( "displayAttributes" ); | ||
| QSet<int>::const_iterator attIt = mDisplayAttributes.constBegin(); | ||
| for ( ; attIt != mDisplayAttributes.constEnd(); ++attIt ) | ||
| { | ||
| QDomElement attributeIndexElem = doc.createElement( "attributeEntry" ); | ||
| attributeIndexElem.setAttribute( "index", *attIt ); | ||
| displayAttributesElem.appendChild( attributeIndexElem ); | ||
| } | ||
| composerTableElem.appendChild( displayAttributesElem ); | ||
|
|
||
| //alias map | ||
| QDomElement aliasMapElem = doc.createElement( "attributeAliasMap" ); | ||
| QMap<int, QString>::const_iterator aliasIt = mFieldAliasMap.constBegin(); | ||
| for ( ; aliasIt != mFieldAliasMap.constEnd(); ++aliasIt ) | ||
| { | ||
| QDomElement mapEntryElem = doc.createElement( "aliasEntry" ); | ||
| mapEntryElem.setAttribute( "key", aliasIt.key() ); | ||
| mapEntryElem.setAttribute( "value", aliasIt.value() ); | ||
| aliasMapElem.appendChild( mapEntryElem ); | ||
| } | ||
| composerTableElem.appendChild( aliasMapElem ); | ||
| bool ok = tableWriteXML( composerTableElem, doc ); | ||
| elem.appendChild( composerTableElem ); | ||
| return ok; | ||
| } | ||
|
|
||
| bool QgsComposerAttributeTable::readXML( const QDomElement& itemElem, const QDomDocument& doc ) | ||
| { | ||
| if ( itemElem.isNull() ) | ||
| { | ||
| return false; | ||
| } | ||
|
|
||
| mMaximumNumberOfFeatures = itemElem.attribute( "maxFeatures", "5" ).toInt(); | ||
| mShowOnlyVisibleFeatures = itemElem.attribute( "showOnlyVisibleFeatures", "1" ).toInt(); | ||
|
|
||
| //composer map | ||
| int composerMapId = itemElem.attribute( "composerMap", "-1" ).toInt(); | ||
| if ( composerMapId == -1 ) | ||
| { | ||
| mComposerMap = 0; | ||
| } | ||
|
|
||
| if ( composition() ) | ||
| { | ||
| mComposerMap = composition()->getComposerMapById( composerMapId ); | ||
| } | ||
| else | ||
| { | ||
| mComposerMap = 0; | ||
| } | ||
|
|
||
| //vector layer | ||
| QString layerId = itemElem.attribute( "vectorLayer", "not_existing" ); | ||
| if ( layerId == "not_existing" ) | ||
| { | ||
| mVectorLayer = 0; | ||
| } | ||
| else | ||
| { | ||
| QgsMapLayer* ml = QgsMapLayerRegistry::instance()->mapLayer( layerId ); | ||
| if ( ml ) | ||
| { | ||
| mVectorLayer = dynamic_cast<QgsVectorLayer*>( ml ); | ||
| } | ||
| } | ||
|
|
||
| //restore display attribute map | ||
| mDisplayAttributes.clear(); | ||
| QDomNodeList displayAttributeList = itemElem.elementsByTagName( "displayAttributes" ); | ||
| if ( displayAttributeList.size() > 0 ) | ||
| { | ||
| QDomElement displayAttributesElem = displayAttributeList.at( 0 ).toElement(); | ||
| QDomNodeList attributeEntryList = displayAttributesElem.elementsByTagName( "attributeEntry" ); | ||
| for ( int i = 0; i < attributeEntryList.size(); ++i ) | ||
| { | ||
| QDomElement attributeEntryElem = attributeEntryList.at( i ).toElement(); | ||
| int index = attributeEntryElem.attribute( "index", "-1" ).toInt(); | ||
| if ( index != -1 ) | ||
| { | ||
| mDisplayAttributes.insert( index ); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| //restore alias map | ||
| mFieldAliasMap.clear(); | ||
| QDomNodeList aliasMapNodeList = itemElem.elementsByTagName( "attributeAliasMap" ); | ||
| if ( aliasMapNodeList.size() > 0 ) | ||
| { | ||
| QDomElement attributeAliasMapElem = aliasMapNodeList.at( 0 ).toElement(); | ||
| QDomNodeList aliasMepEntryList = attributeAliasMapElem.elementsByTagName( "aliasEntry" ); | ||
| for ( int i = 0; i < aliasMepEntryList.size(); ++i ) | ||
| { | ||
| QDomElement aliasEntryElem = aliasMepEntryList.at( i ).toElement(); | ||
| int key = aliasEntryElem.attribute( "key", "-1" ).toInt(); | ||
| QString value = aliasEntryElem.attribute( "value", "" ); | ||
| mFieldAliasMap.insert( key, value ); | ||
| } | ||
| } | ||
| return tableReadXML( itemElem, doc ); | ||
| } |
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