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qgsrulebasedrendererwidget.h
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qgsrulebasedrendererwidget.h
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/***************************************************************************
qgsrulebasedrendererwidget.h - Settings widget for rule-based renderer
---------------------
begin : May 2010
copyright : (C) 2010 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. *
* *
***************************************************************************/
#ifndef QGSRULEBASEDRENDERERWIDGET_H
#define QGSRULEBASEDRENDERERWIDGET_H
#include "qgsrendererwidget.h"
#include "qgis_sip.h"
#include "qgsrulebasedrenderer.h"
class QMenu;
class QgsSymbolSelectorWidget;
///////
#include <QAbstractItemModel>
/* Features count for rule */
struct QgsRuleBasedRendererCount SIP_SKIP
{
int count; // number of features
int duplicateCount; // number of features present also in other rule(s)
// map of feature counts in other rules
QHash<QgsRuleBasedRenderer::Rule *, int> duplicateCountMap;
};
/**
* \ingroup gui
* \brief Tree model for the rules:
*
* (invalid) == root node
* +--- top level rule
* +--- top level rule
*/
class GUI_EXPORT QgsRuleBasedRendererModel : public QAbstractItemModel
{
Q_OBJECT
public:
/**
* Constructor for QgsRuleBasedRendererModel, for the specified \a renderer.
*/
QgsRuleBasedRendererModel( QgsRuleBasedRenderer *renderer, QObject *parent );
Qt::ItemFlags flags( const QModelIndex &index ) const override;
QVariant data( const QModelIndex &index, int role = Qt::DisplayRole ) const override;
QVariant headerData( int section, Qt::Orientation orientation,
int role = Qt::DisplayRole ) const override;
int rowCount( const QModelIndex &parent = QModelIndex() ) const override;
int columnCount( const QModelIndex & = QModelIndex() ) const override;
QModelIndex index( int row, int column, const QModelIndex &parent = QModelIndex() ) const override;
QModelIndex parent( const QModelIndex &index ) const override;
// editing support
bool setData( const QModelIndex &index, const QVariant &value, int role = Qt::EditRole ) override;
// drag'n'drop support
Qt::DropActions supportedDropActions() const override;
QStringList mimeTypes() const override;
QMimeData *mimeData( const QModelIndexList &indexes ) const override;
bool dropMimeData( const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent ) override;
bool removeRows( int row, int count, const QModelIndex &parent = QModelIndex() ) override;
// new methods
QgsRuleBasedRenderer::Rule *ruleForIndex( const QModelIndex &index ) const;
void insertRule( const QModelIndex &parent, int before, QgsRuleBasedRenderer::Rule *newrule );
void updateRule( const QModelIndex &parent, int row );
// update rule and all its descendants
void updateRule( const QModelIndex &index );
void removeRule( const QModelIndex &index );
/**
* Sets the \a symbol for the rule at the specified \a index. Ownership of the symbols is
* transferred to the renderer.
*
* \since QGIS 3.10
*/
void setSymbol( const QModelIndex &index, QgsSymbol *symbol SIP_TRANSFER );
void willAddRules( const QModelIndex &parent, int count ); // call beginInsertRows
void finishedAddingRules(); // call endInsertRows
//! \note not available in Python bindungs
void setFeatureCounts( const QHash<QgsRuleBasedRenderer::Rule *, QgsRuleBasedRendererCount> &countMap ) SIP_SKIP;
void clearFeatureCounts();
protected:
QgsRuleBasedRenderer *mR = nullptr;
QHash<QgsRuleBasedRenderer::Rule *, QgsRuleBasedRendererCount> mFeatureCountMap;
};
///////
#include "ui_qgsrulebasedrendererwidget.h"
/**
* \ingroup gui
* \class QgsRuleBasedRendererWidget
*/
class GUI_EXPORT QgsRuleBasedRendererWidget : public QgsRendererWidget, private Ui::QgsRuleBasedRendererWidget
{
Q_OBJECT
public:
static QgsRendererWidget *create( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer ) SIP_FACTORY;
QgsRuleBasedRendererWidget( QgsVectorLayer *layer, QgsStyle *style, QgsFeatureRenderer *renderer );
~QgsRuleBasedRendererWidget() override;
QgsFeatureRenderer *renderer() override;
void setDockMode( bool dockMode ) override;
public slots:
void addRule();
void editRule();
void editRule( const QModelIndex &index );
void removeRule();
void countFeatures();
void clearFeatureCounts() { mModel->clearFeatureCounts(); }
void refineRuleScales();
void refineRuleCategories();
void refineRuleRanges();
void setRenderingOrder();
void currentRuleChanged( const QModelIndex ¤t = QModelIndex(), const QModelIndex &previous = QModelIndex() );
void selectedRulesChanged();
void saveSectionWidth( int section, int oldSize, int newSize );
void restoreSectionWidths();
protected:
void refineRule( int type );
//! Opens the dialog for refining a rule using categories
void refineRuleCategoriesGui();
//! Opens the dialog for refining a rule using ranges
void refineRuleRangesGui();
void refineRuleScalesGui( const QModelIndexList &index );
void setSymbolLevels( const QList< QgsLegendSymbolItem > &levels, bool enabled ) override;
QgsRuleBasedRenderer::Rule *currentRule();
QList<QgsSymbol *> selectedSymbols() override;
QgsRuleBasedRenderer::RuleList selectedRules();
void refreshSymbolView() override;
void keyPressEvent( QKeyEvent *event ) override;
std::unique_ptr< QgsRuleBasedRenderer > mRenderer;
QgsRuleBasedRendererModel *mModel = nullptr;
QMenu *mRefineMenu = nullptr;
QAction *mDeleteAction = nullptr;
QgsRuleBasedRenderer::RuleList mCopyBuffer;
QMenu *mContextMenu = nullptr;
protected slots:
void copy() override;
void paste() override;
void pasteSymbolToSelection() override;
private slots:
void refineRuleCategoriesAccepted( QgsPanelWidget *panel );
void refineRuleRangesAccepted( QgsPanelWidget *panel );
void ruleWidgetPanelAccepted( QgsPanelWidget *panel );
void liveUpdateRuleFromPanel();
void showContextMenu( QPoint p );
};
///////
#include <QDialog>
#include "ui_qgsrendererrulepropsdialogbase.h"
#include "qgis_gui.h"
/**
* \ingroup gui
* \class QgsRendererRulePropsWidget
*/
class GUI_EXPORT QgsRendererRulePropsWidget : public QgsPanelWidget, private Ui::QgsRendererRulePropsWidget
{
Q_OBJECT
public:
/**
* Widget to edit the details of a rule based renderer rule.
* \param rule The rule to edit.
* \param layer The layer used to pull layer related information.
* \param style The active QGIS style.
* \param parent The parent widget.
* \param context the symbol widget context
*/
QgsRendererRulePropsWidget( QgsRuleBasedRenderer::Rule *rule,
QgsVectorLayer *layer,
QgsStyle *style,
QWidget *parent SIP_TRANSFERTHIS = nullptr,
const QgsSymbolWidgetContext &context = QgsSymbolWidgetContext() );
/**
* Returns the current set rule.
* \returns The current rule.
*/
QgsRuleBasedRenderer::Rule *rule() { return mRule; }
public slots:
/**
* Test the filter that is set in the widget
*/
void testFilter();
/**
* Open the expression builder widget to check if the
*/
void buildExpression();
/**
* Apply any changes from the widget to the set rule.
*/
void apply();
/**
* Set the widget in dock mode.
* \param dockMode TRUE for dock mode.
*/
void setDockMode( bool dockMode ) override;
protected:
QgsRuleBasedRenderer::Rule *mRule; // borrowed
QgsVectorLayer *mLayer = nullptr;
QgsSymbolSelectorWidget *mSymbolSelector = nullptr;
QgsSymbol *mSymbol = nullptr; // a clone of original symbol
QgsSymbolWidgetContext mContext;
};
/**
* \ingroup gui
* \class QgsRendererRulePropsDialog
*/
class GUI_EXPORT QgsRendererRulePropsDialog : public QDialog
{
Q_OBJECT
public:
/**
* Constructor for QgsRendererRulePropsDialog
* \param rule associated rule based renderer rule
* \param layer source vector layer
* \param style style collection
* \param parent parent widget
* \param context symbol widget context
*/
QgsRendererRulePropsDialog( QgsRuleBasedRenderer::Rule *rule, QgsVectorLayer *layer, QgsStyle *style, QWidget *parent SIP_TRANSFERTHIS = nullptr, const QgsSymbolWidgetContext &context = QgsSymbolWidgetContext() );
QgsRuleBasedRenderer::Rule *rule() { return mPropsWidget->rule(); }
public slots:
void testFilter();
void buildExpression();
void accept() override;
private slots:
void showHelp();
private:
QgsRendererRulePropsWidget *mPropsWidget = nullptr;
QDialogButtonBox *buttonBox = nullptr;
};
#endif // QGSRULEBASEDRENDERERWIDGET_H