QGIS API Documentation 3.40.0-Bratislava (b56115d8743)
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qgsmodelinputreorderwidget.cpp
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1/***************************************************************************
2 qgsmodelinputreorderwidget.cpp
3 ------------------------------------
4 Date : April 2020
5 Copyright : (C) 2020 Nyall Dawson
6 Email : nyall dot dawson at gmail dot com
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
17#include "qgsgui.h"
19#include <QDialogButtonBox>
20#include <QStandardItemModel>
22
23QgsModelInputReorderWidget::QgsModelInputReorderWidget( QWidget *parent )
24 : QWidget( parent )
25{
26 setupUi( this );
27
28 mItemModel = new QStandardItemModel( 0, 1, this );
29 mInputsList->setModel( mItemModel );
30
31 mInputsList->setDropIndicatorShown( true );
32 mInputsList->setDragDropOverwriteMode( false );
33 mInputsList->setDragEnabled( true );
34 mInputsList->setDragDropMode( QAbstractItemView::InternalMove );
35
36 connect( mButtonUp, &QPushButton::clicked, this, [ = ]
37 {
38 int currentRow = mInputsList->currentIndex().row();
39 if ( currentRow == 0 )
40 return;
41
42 mItemModel->insertRow( currentRow - 1, mItemModel->takeRow( currentRow ) );
43 mInputsList->setCurrentIndex( mItemModel->index( currentRow - 1, 0 ) );
44 } );
45
46 connect( mButtonDown, &QPushButton::clicked, this, [ = ]
47 {
48 int currentRow = mInputsList->currentIndex().row();
49 if ( currentRow == mItemModel->rowCount() - 1 )
50 return;
51
52 mItemModel->insertRow( currentRow + 1, mItemModel->takeRow( currentRow ) );
53 mInputsList->setCurrentIndex( mItemModel->index( currentRow + 1, 0 ) );
54 } );
55
56}
57
58void QgsModelInputReorderWidget::setModel( QgsProcessingModelAlgorithm *model )
59{
60 mModel = model;
61 mParameters = mModel->orderedParameters();
62 mItemModel->clear();
63 for ( const QgsProcessingModelParameter &param : std::as_const( mParameters ) )
64 {
65 QStandardItem *item = new QStandardItem( mModel->parameterDefinition( param.parameterName() )->description() );
66 item->setData( param.parameterName() );
67 item->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable | Qt::ItemIsDragEnabled );
68 mItemModel->appendRow( item );
69 }
70}
71
72QStringList QgsModelInputReorderWidget::inputOrder() const
73{
74 QStringList order;
75 order.reserve( mItemModel->rowCount( ) );
76 for ( int row = 0; row < mItemModel->rowCount(); ++row )
77 {
78 order << mItemModel->data( mItemModel->index( row, 0 ), Qt::UserRole + 1 ).toString();
79 }
80 return order;
81}
82
83
84QgsModelInputReorderDialog::QgsModelInputReorderDialog( QWidget *parent )
85 : QDialog( parent )
86{
87 setWindowTitle( tr( "Reorder Model Inputs" ) );
88 mWidget = new QgsModelInputReorderWidget();
89 QVBoxLayout *vl = new QVBoxLayout();
90 vl->addWidget( mWidget, 1 );
91 QDialogButtonBox *buttonBox = new QDialogButtonBox( QDialogButtonBox::Ok | QDialogButtonBox::Cancel );
92 connect( buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept );
93 connect( buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject );
94 vl->addWidget( buttonBox );
95 setLayout( vl );
96}
97
98void QgsModelInputReorderDialog::setModel( QgsProcessingModelAlgorithm *model )
99{
100 mWidget->setModel( model );
101}
102
103QStringList QgsModelInputReorderDialog::inputOrder() const
104{
105 return mWidget->inputOrder();
106}
107