QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
Loading...
Searching...
No Matches
qgsfeaturepickerwidget.h
Go to the documentation of this file.
1/***************************************************************************
2 qgsfeaturepickerwidget.h - QgsFeaturePickerWidget
3 ---------------------
4 begin : 03.04.2020
5 copyright : (C) 2020 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#ifndef QGSFEATURECHOOSER_H
16#define QGSFEATURECHOOSER_H
17
18#include <QWidget>
19#include <QComboBox>
20#include <QLineEdit>
21#include <QCompleter>
22
23#include "qgsfeature.h"
24#include "qgis_gui.h"
25
26class QToolButton;
27
28class QgsVectorLayer;
30class QgsAnimatedIcon;
32
33
43class GUI_EXPORT QgsFeaturePickerWidget : public QWidget
44{
45 Q_OBJECT
46
47 Q_PROPERTY( QgsVectorLayer *layer READ layer WRITE setLayer NOTIFY layerChanged )
48 Q_PROPERTY( QString displayExpression READ displayExpression WRITE setDisplayExpression NOTIFY displayExpressionChanged )
49 Q_PROPERTY( QString filterExpression READ filterExpression WRITE setFilterExpression NOTIFY filterExpressionChanged )
50 Q_PROPERTY( bool allowNull READ allowNull WRITE setAllowNull NOTIFY allowNullChanged )
51 Q_PROPERTY( bool fetchGeometry READ fetchGeometry WRITE setFetchGeometry NOTIFY fetchGeometryChanged )
52 Q_PROPERTY( int fetchLimit READ fetchLimit WRITE setFetchLimit NOTIFY fetchLimitChanged )
53 Q_PROPERTY( bool showBrowserButtons READ showBrowserButtons WRITE setShowBrowserButtons NOTIFY showBrowserButtonsChanged )
54
55 public:
56
60 QgsFeaturePickerWidget( QWidget *parent = nullptr );
61
65 QgsVectorLayer *layer() const;
66
70 void setLayer( QgsVectorLayer *layer );
71
75 void setFeature( QgsFeatureId featureId );
76
80 QgsFeature feature() const;
81
86 QString displayExpression() const;
87
92 void setDisplayExpression( const QString &displayExpression );
93
98 QString filterExpression() const;
99
104 int nullIndex() const;
105
110 void setFilterExpression( const QString &filterExpression );
111
115 bool allowNull() const;
116
120 void setAllowNull( bool allowNull );
121
125 bool fetchGeometry() const;
126
130 void setFetchGeometry( bool fetchGeometry );
131
135 int fetchLimit() const;
136
141 void setFetchLimit( int fetchLimit );
142
146 bool showBrowserButtons() const;
147
152 void setShowBrowserButtons( bool showBrowserButtons );
153
154
158 QModelIndex currentModelIndex() const;
159
160 void focusOutEvent( QFocusEvent *event ) override;
161
162 void keyPressEvent( QKeyEvent *event ) override;
163
164 signals:
165
169 void modelUpdated();
170
174 void layerChanged();
175
180 void displayExpressionChanged();
181
186 void filterExpressionChanged();
187
189 void featureChanged( const QgsFeature &feature );
190
194 void allowNullChanged();
195
199 void fetchGeometryChanged();
200
204 void fetchLimitChanged();
205
207 void showBrowserButtonsChanged();
208
209 private slots:
210 void onCurrentTextChanged( const QString &text );
211 void onFilterUpdateCompleted();
212 void onLoadingChanged();
213 void onItemSelected( const QModelIndex &index );
214 void onCurrentIndexChanged( int i );
215 void onActivated( QModelIndex index );
216 void storeLineEditState();
217 void restoreLineEditState();
218 void onDataChanged( const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles = QVector<int>() );
219 void browseFeatures( int direction );
220
221 private:
222 QComboBox *mComboBox;
223 QToolButton *mPreviousButton;
224 QToolButton *mNextButton;
225 QgsFeaturePickerModel *mModel = nullptr;
226 QCompleter *mCompleter = nullptr;
227 QgsFilterLineEdit *mLineEdit;
228 bool mPopupRequested = false;
229 bool mIsCurrentlyEdited = false;
230 bool mHasStoredEditState = false;
231 bool mShowBrowserButtons = false;
232};
233
234
235
236#endif // QGSFEATURECHOOSER_H
Animated icon is keeping an animation running if there are listeners connected to frameChanged.
Provides a list of features based on filter conditions.
This offers a combobox with autocompleter that allows selecting features from a layer.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
Definition qgsfeature.h:58
QLineEdit subclass with built in support for clearing the widget's value and handling custom null val...
Represents a vector layer which manages a vector based data sets.
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features