QGIS API Documentation  3.26.3-Buenos Aires (65e4edfdad)
qgsexternalresourcewidgetwrapper.h
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1 /***************************************************************************
2  qgsexternalresourcewidgetwrapper.h
3  --------------------------------------
4  begin : 16.12.2015
5  copyright : (C) 2015 by Denis Rouzaud
6  email : [email protected]
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 QGSEXTERNALRESOURCEWIDGETWRAPPER_H
17 #define QGSEXTERNALRESOURCEWIDGETWRAPPER_H
18 
20 
21 class QLabel;
22 class QLineEdit;
23 
24 #include "qgseditorwidgetwrapper.h"
25 #include "qgis_gui.h"
26 #include "qgsattributeform.h"
27 
29 
30 
31 
42 {
43  Q_OBJECT
44  public:
45 
57  explicit QgsExternalResourceWidgetWrapper( QgsVectorLayer *layer, int fieldIdx, QWidget *editor = nullptr, QgsMessageBar *messageBar = nullptr, QWidget *parent = nullptr );
58 
59  // QgsEditorWidgetWrapper interface
60  public:
61  QVariant value() const override;
62  void showIndeterminateState() override;
63 
64  protected:
65  QWidget *createWidget( QWidget *parent ) override;
66  void initWidget( QWidget *editor ) override;
67  bool valid() const override;
68 
72  void updateFileWidgetExpressionContext();
73 
74  public slots:
75  void setFeature( const QgsFeature &feature ) override;
76  void setEnabled( bool enabled ) override;
77 
87  void widgetValueChanged( const QString &attribute, const QVariant &newValue, bool attributeChanged );
88 
89 
90  private:
91  void updateValues( const QVariant &value, const QVariantList & = QVariantList() ) override;
92  void updateConstraintWidgetStatus() override;
93  void updateProperties( const QgsFeature &feature );
94 
95  QLineEdit *mLineEdit = nullptr;
96  QLabel *mLabel = nullptr;
97  QgsAttributeForm *mForm = nullptr;
98  QgsExternalResourceWidget *mQgsWidget = nullptr;
99  QgsMessageBar *mMessageBar = nullptr;
100 
101  friend class TestQgsExternalResourceWidgetWrapper;
102 
103 };
104 
105 #endif // QGSEXTERNALRESOURCEWIDGETWRAPPER_H
qgseditorwidgetwrapper.h
QgsWidgetWrapper::initWidget
virtual void initWidget(QWidget *editor)
This method should initialize the editor widget with runtime data.
Definition: qgswidgetwrapper.cpp:107
qgsattributeform.h
QgsWidgetWrapper::valid
virtual bool valid() const =0
Returns true if the widget has been properly initialized.
QgsEditorWidgetWrapper::value
virtual QVariant value() const =0
Will be used to access the widget's value.
QgsExternalResourceWidget
Widget to display file path with a push button for an "open file" dialog It can also be used to displ...
Definition: qgsexternalresourcewidget.h:52
QgsEditorWidgetWrapper
Manages an editor widget Widget and wrapper share the same parent.
Definition: qgseditorwidgetwrapper.h:47
QgsMessageBar
A bar for displaying non-blocking messages to the user.
Definition: qgsmessagebar.h:60
SIP_NO_FILE
#define SIP_NO_FILE
Definition: fromencodedcomponenthelper.h:18
QgsVectorLayer
Represents a vector layer which manages a vector based data sets.
Definition: qgsvectorlayer.h:391
QgsEditorWidgetWrapper::updateConstraintWidgetStatus
virtual void updateConstraintWidgetStatus()
This should update the widget with a visual cue if a constraint status changed.
Definition: qgseditorwidgetwrapper.cpp:105
QgsEditorWidgetWrapper::setEnabled
void setEnabled(bool enabled) override
Is used to enable or disable the edit functionality of the managed widget.
Definition: qgseditorwidgetwrapper.cpp:60
QgsFeature
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:55
QgsAttributeForm
Definition: qgsattributeform.h:44
QgsEditorWidgetWrapper::setFeature
void setFeature(const QgsFeature &feature) override
Will be called when the feature changes.
Definition: qgseditorwidgetwrapper.cpp:69
QgsExternalResourceWidgetWrapper
Wraps a file name widget. Will offer a file browser to choose files.
Definition: qgsexternalresourcewidgetwrapper.h:41
QgsWidgetWrapper::createWidget
virtual QWidget * createWidget(QWidget *parent)=0
This method should create a new widget with the provided parent.
QgsEditorWidgetWrapper::showIndeterminateState
virtual void showIndeterminateState()
Sets the widget to display in an indeterminate "mixed value" state.
Definition: qgseditorwidgetwrapper.h:155