QGIS API Documentation 3.39.0-Master (3783037d301)
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qgstextwidgetwrapper.h
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1/***************************************************************************
2 qgstextwidgetwrapper.h
3
4 ---------------------
5 begin : 28.12.2022
6 copyright : (C) 2022 by Alessandro Pasotti
7 email : elpaso at itopen dot it
8 ***************************************************************************
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 ***************************************************************************/
16#ifndef QGSTEXTWIDGETWRAPPER_H
17#define QGSTEXTWIDGETWRAPPER_H
18
19#include "qgswidgetwrapper.h"
20#include "qgis_gui.h"
21#include <QLabel>
22
28class GUI_EXPORT QgsTextWidgetWrapper : public QgsWidgetWrapper
29{
30 Q_OBJECT
31
32 public:
33
41 QgsTextWidgetWrapper( QgsVectorLayer *layer, QWidget *editor, QWidget *parent );
42
43 bool valid() const override;
44
45 QWidget *createWidget( QWidget *parent ) override;
46
47 void initWidget( QWidget *editor ) override;
48
50 void reinitWidget();
51
53 void setText( const QString &text );
54
58 bool needsGeometry() const;
59
60 private slots:
61
63 void updateTextContext( );
64
65 public slots:
66 void setFeature( const QgsFeature &feature ) override;
67
68 private:
69
70 QString mText;
71 QLabel *mWidget = nullptr;
72 QgsFeature mFeature;
73 QgsFeature mFormFeature;
74 bool mRequiresFormScope = false;
75 QgsExpressionContext mTextContext;
76 bool mNeedsGeometry = false;
77
78 friend class TestQgsTextWidgetWrapper;
79};
80
81
82#endif // QGSTEXTWIDGETWRAPPER_H
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:58
Wraps a label widget to display text.
Represents a vector layer which manages a vector based data sets.
Manages an editor widget Widget and wrapper share the same parent.
virtual void setFeature(const QgsFeature &feature)=0
Is called when the value of the widget needs to be changed.
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.