QGIS API Documentation 3.34.0-Prizren (ffbdd678812)
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qgskeyvaluewidget.cpp
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1/***************************************************************************
2 qgskeyvaluewidget.cpp
3 --------------------------------------
4 Date : 08.2016
5 Copyright : (C) 2016 Patrick Valsecchi
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#include "qgskeyvaluewidget.h"
17
19 : QgsTableWidgetBase( parent )
20 , mModel( this )
21{
22 init( &mModel );
23}
24
25void QgsKeyValueWidget::setMap( const QVariantMap &map )
26{
27 removeButton->setEnabled( false );
28 mModel.setMap( map );
29}
30
32void QgsKeyValueModel::setMap( const QVariantMap &map )
33{
34 beginResetModel();
35 mLines.clear();
36 for ( QVariantMap::const_iterator it = map.constBegin(); it != map.constEnd(); ++it )
37 {
38 mLines.append( Line( it.key(), it.value() ) );
39 }
40 endResetModel();
41}
42
43QVariantMap QgsKeyValueModel::map() const
44{
45 QVariantMap ret;
46 for ( QVector<Line>::const_iterator it = mLines.constBegin(); it != mLines.constEnd(); ++it )
47 {
48 if ( !it->first.isEmpty() )
49 {
50 ret[it->first] = it->second;
51 }
52 }
53 return ret;
54}
55
56QgsKeyValueModel::QgsKeyValueModel( QObject *parent ) :
57 QAbstractTableModel( parent )
58{
59}
60
61int QgsKeyValueModel::rowCount( const QModelIndex &parent ) const
62{
63 Q_UNUSED( parent )
64 return mLines.count();
65}
66
67int QgsKeyValueModel::columnCount( const QModelIndex &parent ) const
68{
69 Q_UNUSED( parent )
70 return 2;
71}
72
73QVariant QgsKeyValueModel::headerData( int section, Qt::Orientation orientation, int role ) const
74{
75 if ( orientation == Qt::Horizontal && role == Qt::DisplayRole )
76 {
77 return QObject::tr( section == 0 ? "Key" : "Value" );
78 }
79 return QVariant();
80}
81
82QVariant QgsKeyValueModel::data( const QModelIndex &index, int role ) const
83{
84 if ( index.row() < 0 ||
85 index.row() >= mLines.count() ||
86 ( role != Qt::DisplayRole && role != Qt::EditRole ) )
87 {
88 return QVariant();
89 }
90 if ( index.column() == 0 )
91 return mLines.at( index.row() ).first;
92 if ( index.column() == 1 )
93 return mLines.at( index.row() ).second;
94 return QVariant();
95}
96
97bool QgsKeyValueModel::setData( const QModelIndex &index, const QVariant &value, int role )
98{
99 if ( index.row() < 0 || index.row() >= mLines.count() || role != Qt::EditRole )
100 {
101 return false;
102 }
103 if ( index.column() == 0 )
104 {
105 mLines[index.row()].first = value.toString();
106 }
107 else
108 {
109 mLines[index.row()].second = value;
110 }
111 emit dataChanged( index, index );
112 return true;
113}
114
115Qt::ItemFlags QgsKeyValueModel::flags( const QModelIndex &index ) const
116{
117 return QAbstractTableModel::flags( index ) | Qt::ItemIsEditable;
118}
119
120bool QgsKeyValueModel::insertRows( int position, int rows, const QModelIndex &parent )
121{
122 Q_UNUSED( parent )
123 beginInsertRows( QModelIndex(), position, position + rows - 1 );
124 for ( int i = 0; i < rows; ++i )
125 {
126 mLines.insert( position, Line( QString(), QVariant() ) );
127 }
128 endInsertRows();
129 return true;
130}
131
132bool QgsKeyValueModel::removeRows( int position, int rows, const QModelIndex &parent )
133{
134 Q_UNUSED( parent )
135 beginRemoveRows( QModelIndex(), position, position + rows - 1 );
136 mLines.remove( position, rows );
137 endRemoveRows();
138 return true;
139}
QgsKeyValueWidget(QWidget *parent=nullptr)
Constructor.
void setMap(const QVariantMap &map)
Set the initial value of the widget.
Base widget allowing to edit a collection, using a table.
void init(QAbstractTableModel *model)
Initialize the table with the given model.