QGIS API Documentation 3.27.0-Master (f261cc1f8b)
qgsexternalresourcewidgetwrapper.h
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1/***************************************************************************
2 qgsexternalresourcewidgetwrapper.h
3 --------------------------------------
4 begin : 16.12.2015
5 copyright : (C) 2015 by Denis Rouzaud
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
21class QLabel;
22class QLineEdit;
23
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
Manages an editor widget Widget and wrapper share the same parent.
virtual void updateConstraintWidgetStatus()
This should update the widget with a visual cue if a constraint status changed.
virtual QVariant value() const =0
Will be used to access the widget's value.
virtual void showIndeterminateState()
Sets the widget to display in an indeterminate "mixed value" state.
void setFeature(const QgsFeature &feature) override
Will be called when the feature changes.
void setEnabled(bool enabled) override
Is used to enable or disable the edit functionality of the managed widget.
Widget to display file path with a push button for an "open file" dialog It can also be used to displ...
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition: qgsfeature.h:56
A bar for displaying non-blocking messages to the user.
Definition: qgsmessagebar.h:61
Represents a vector layer which manages a vector based data sets.
virtual bool valid() const =0
Returns true if the widget has been properly initialized.
virtual void initWidget(QWidget *editor)
This method should initialize the editor widget with runtime data.
virtual QWidget * createWidget(QWidget *parent)=0
This method should create a new widget with the provided parent.
#define SIP_NO_FILE