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a717b85e2e
A new widget which handles parameter values for child algorithms within a model. Instead of the previous approach of requiring individual widget wrappers to handle creation of a suitable model widget, we do all this automatically for them. This widget uses a stacked widget with a toolbutton to select the parameter's source, instead of the previous combo box approach (which didn't scale well for large models). I.e. users select first whether the value is taken from a static value, a model input, or an output from a different child algorithm. The widget then changes appearance and behavior based on this choice. Additionally, a new option is present for all parameters of using a "precalculated expression". This expression is evaluated once before the child algorithm is executed and used during the execution of that algorithm.
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
/***************************************************************************
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qgsprocessingwidgetwrapperimpl.h
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---------------------
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begin : August 2018
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copyright : (C) 2018 by Nyall Dawson
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email : nyall dot dawson at gmail dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSPROCESSINGWIDGETWRAPPERIMPL_H
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#define QGSPROCESSINGWIDGETWRAPPERIMPL_H
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#define SIP_NO_FILE
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#include "qgsprocessingwidgetwrapper.h"
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class QCheckBox;
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class QComboBox;
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///@cond PRIVATE
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class GUI_EXPORT QgsProcessingBooleanWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
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{
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public:
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QgsProcessingBooleanWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr,
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QgsProcessingGui::WidgetType type = QgsProcessingGui::Standard, QWidget *parent = nullptr );
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// QgsProcessingParameterWidgetFactoryInterface
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QString parameterType() const override;
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QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, QgsProcessingGui::WidgetType type ) override;
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// QgsProcessingParameterWidgetWrapper interface
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QWidget *createWidget() override SIP_FACTORY;
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QLabel *createLabel() override SIP_FACTORY;
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void setWidgetValue( const QVariant &value, const QgsProcessingContext &context ) override;
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QVariant value() const override;
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protected:
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protected:
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QStringList compatibleParameterTypes() const override;
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QStringList compatibleOutputTypes() const override;
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QList< int > compatibleDataTypes() const override;
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private:
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QCheckBox *mCheckBox = nullptr;
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QComboBox *mComboBox = nullptr;
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};
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///@endcond PRIVATE
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#endif // QGSPROCESSINGWIDGETWRAPPERIMPL_H
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