QGIS API Documentation 4.1.0-Master (60fea48833c)
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qgsprocessingmeshdatasetwidget.h
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1/***************************************************************************
2 qgsprocessingmeshdatasetwidget.h
3 ---------------------
4 Date : October 2020
5 Copyright : (C) 2020 by Vincent Cloarec
6 Email : vcloarec at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSPROCESSINGMESHDATASETWIDGET_H
17#define QGSPROCESSINGMESHDATASETWIDGET_H
18
19#include "ui_qgsprocessingmeshdatasettimewidget.h"
20
21#include "qgsmeshlayer.h"
24
25#include <QAction>
26
27#define SIP_NO_FILE
28
30
31class GUI_EXPORT QgsProcessingMeshDatasetGroupsWidget : public QWidget
32{
33 Q_OBJECT
34 public:
35 QgsProcessingMeshDatasetGroupsWidget( QWidget *parent = nullptr, const QgsProcessingParameterMeshDatasetGroups *param = nullptr );
36
42 void setMeshLayer( QgsMeshLayer *layer, bool layerFromProject = false );
43 void setValue( const QVariant &value );
44 QVariant value() const;
45
46 signals:
47 void changed();
48
49 private slots:
50 void showDialog();
51 void selectCurrentActiveDatasetGroup();
52
53 private:
54 const QgsProcessingParameterMeshDatasetGroups *mParam = nullptr;
55 QVariantList mValue;
56
57 QPointer<QLineEdit> mLineEdit;
58 QPointer<QToolButton> mToolButton;
59 QPointer<QAction> mActionCurrentActiveDatasetGroups;
60 QPointer<QAction> mActionAvailableDatasetGroups;
61 QgsMeshLayer *mMeshLayer = nullptr;
62 QMap<int, QString> mDatasetGroupsNames; //used to store the dataset groups name if layer is not referenced
63
64 QStringList datasetGroupsNames();
65 void updateSummaryText();
66
67 friend class TestProcessingGui;
68};
69
70
71class GUI_EXPORT QgsProcessingMeshDatasetGroupsWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
72{
73 Q_OBJECT
74
75 public:
76 QgsProcessingMeshDatasetGroupsWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );
77
78 QString parameterType() const override;
79 QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
80 QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
81 QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
82 ) override;
83 void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;
84
86 void setMeshLayerWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *wrapper );
87
88 protected:
89 QWidget *createWidget() override;
90 void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
91 QVariant widgetValue() const override;
92
93 private:
94 QgsProcessingMeshDatasetGroupsWidget *mWidget = nullptr;
95
96 friend class TestProcessingGui;
97};
98
99class GUI_EXPORT QgsProcessingMeshDatasetGroupsParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
100{
101 Q_OBJECT
102
103 public:
104 QgsProcessingMeshDatasetGroupsParameterDefinitionWidget(
105 QgsProcessingContext &context,
106 const QgsProcessingParameterWidgetContext &widgetContext,
107 const QgsProcessingParameterDefinition *definition = nullptr,
108 const QgsProcessingAlgorithm *algorithm = nullptr,
109 QWidget *parent SIP_TRANSFERTHIS = nullptr
110 );
111
112 QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;
113
114 private:
115 QComboBox *mParentLayerComboBox = nullptr;
116};
117
118class GUI_EXPORT QgsProcessingMeshDatasetTimeWidget : public QWidget, private Ui::QgsProcessingMeshDatasetTimeWidgetBase
119{
120 Q_OBJECT
121
122 public:
123 QgsProcessingMeshDatasetTimeWidget(
124 QWidget *parent = nullptr, const QgsProcessingParameterMeshDatasetTime *param = nullptr, const QgsProcessingParameterWidgetContext &context = QgsProcessingParameterWidgetContext()
125 );
126
132 void setMeshLayer( QgsMeshLayer *layer, bool layerFromProject = false );
133 void setDatasetGroupIndexes( const QList<int> datasetGroupIndexes );
134
135 void setValue( const QVariant &value );
136 QVariant value() const;
137
138 public slots:
139 void updateValue();
140
141 signals:
142 void changed();
143
144 private:
145 const QgsProcessingParameterMeshDatasetTime *mParam = nullptr;
146 QVariantMap mValue;
147 QgsMapCanvas *mCanvas;
148
149 QLineEdit *mLineEdit = nullptr;
150 QToolButton *mToolButton = nullptr;
151 QgsMeshLayer *mMeshLayer = nullptr;
152 QList<int> mDatasetGroupIndexes;
153 QDateTime mReferenceTime;
154
155 void populateTimeSteps();
156 bool hasTemporalDataset() const;
158 void populateTimeStepsFromLayer();
160 void storeTimeStepsFromLayer( QgsMeshLayer *layer );
161 QMap<int, QList<qint64>> mDatasetTimeSteps; //used if layer does not come from project
162
163 void updateWidget();
164 void buildValue();
165
166 friend class TestProcessingGui;
167};
168
169class GUI_EXPORT QgsProcessingMeshDatasetTimeWidgetWrapper : public QgsAbstractProcessingParameterWidgetWrapper, public QgsProcessingParameterWidgetFactoryInterface
170{
171 Q_OBJECT
172
173 public:
174 QgsProcessingMeshDatasetTimeWidgetWrapper( const QgsProcessingParameterDefinition *parameter = nullptr, Qgis::ProcessingMode type = Qgis::ProcessingMode::Standard, QWidget *parent = nullptr );
175
176 QString parameterType() const override;
177 QgsAbstractProcessingParameterWidgetWrapper *createWidgetWrapper( const QgsProcessingParameterDefinition *parameter, Qgis::ProcessingMode type ) override;
178 void postInitialize( const QList<QgsAbstractProcessingParameterWidgetWrapper *> &wrappers ) override;
179 QgsProcessingAbstractParameterDefinitionWidget *createParameterDefinitionWidget(
180 QgsProcessingContext &context, const QgsProcessingParameterWidgetContext &widgetContext, const QgsProcessingParameterDefinition *definition = nullptr, const QgsProcessingAlgorithm *algorithm = nullptr
181 ) override;
182
184 void setMeshLayerWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *wrapper );
185
187 void setDatasetGroupIndexesWrapperValue( const QgsAbstractProcessingParameterWidgetWrapper *wrapper );
188
189 protected:
190 QWidget *createWidget() override;
191 void setWidgetValue( const QVariant &value, QgsProcessingContext &context ) override;
192 QVariant widgetValue() const override;
193
194 private:
195 QgsProcessingMeshDatasetTimeWidget *mWidget = nullptr;
196 std::unique_ptr<QgsMeshLayer> mTemporarytMeshLayer;
197 friend class TestProcessingGui;
198};
199
200class GUI_EXPORT QgsProcessingMeshDatasetTimeParameterDefinitionWidget : public QgsProcessingAbstractParameterDefinitionWidget
201{
202 Q_OBJECT
203
204 public:
205 QgsProcessingMeshDatasetTimeParameterDefinitionWidget(
206 QgsProcessingContext &context,
207 const QgsProcessingParameterWidgetContext &widgetContext,
208 const QgsProcessingParameterDefinition *definition = nullptr,
209 const QgsProcessingAlgorithm *algorithm = nullptr,
210 QWidget *parent SIP_TRANSFERTHIS = nullptr
211 );
212
213 QgsProcessingParameterDefinition *createParameter( const QString &name, const QString &description, Qgis::ProcessingParameterFlags flags ) const override;
214
215 private:
216 QComboBox *mParentDatasetComboBox = nullptr;
217 QString mMeshLayerParameterName;
218};
219
220
222
223#endif // QGSPROCESSINGMESHDATASETWIDGET_H
ProcessingMode
Types of modes which Processing widgets can be created for.
Definition qgis.h:3786
@ Standard
Standard (single-run) algorithm mode.
Definition qgis.h:3787
QFlags< ProcessingParameterFlag > ProcessingParameterFlags
Flags which dictate the behavior of Processing parameters.
Definition qgis.h:3894
A widget wrapper for Processing parameter value widgets.
Represents a mesh layer supporting display of data on structured or unstructured meshes.
Abstract base class for widgets which allow users to specify the properties of a Processing parameter...
A parameter for processing algorithms that need a list of mesh dataset groups.
An interface for Processing widget wrapper factories.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into allowing algorithms to be written in pure substantial changes are required in order to port existing x Processing algorithms for QGIS x The most significant changes are outlined not GeoAlgorithm For algorithms which operate on features one by consider subclassing the QgsProcessingFeatureBasedAlgorithm class This class allows much of the boilerplate code for looping over features from a vector layer to be bypassed and instead requires implementation of a processFeature method Ensure that your algorithm(or algorithm 's parent class) implements the new pure virtual createInstance(self) call
#define SIP_TRANSFERTHIS
Definition qgis_sip.h:52