1 /** -*- mode: c++ ; c-basic-offset: 2 -*-
2 * @file ChoiceParameter.cpp
3 * @author Sebastien Fourey
4 * @date Nov 2014
5 *
6 * @brief Declaration of the class AbstractParameter
7 *
8 * This file is part of the ZArt software's source code.
9 *
10 * Copyright Sebastien Fourey / GREYC Ensicaen (2010-...)
11 *
12 * https://foureys.users.greyc.fr/
13 *
14 * This software is a computer program whose purpose is to demonstrate
15 * the possibilities of the GMIC image processing language by offering the
16 * choice of several manipulations on a video stream acquired from a webcam. In
17 * other words, ZArt is a GUI for G'MIC real-time manipulations on the output
18 * of a webcam.
19 *
20 * This software is governed by the CeCILL license under French law and
21 * abiding by the rules of distribution of free software. You can use,
22 * modify and/ or redistribute the software under the terms of the CeCILL
23 * license as circulated by CEA, CNRS and INRIA at the following URL
24 * "http://www.cecill.info". See also the directory "Licence" which comes
25 * with this source code for the full text of the CeCILL license.
26 *
27 * As a counterpart to the access to the source code and rights to copy,
28 * modify and redistribute granted by the license, users are provided only
29 * with a limited warranty and the software's author, the holder of the
30 * economic rights, and the successive licensors have only limited
31 * liability.
32 *
33 * In this respect, the user's attention is drawn to the risks associated
34 * with loading, using, modifying and/or developing or reproducing the
35 * software by the user in light of its specific status of free software,
36 * that may mean that it is complicated to manipulate, and that also
37 * therefore means that it is reserved for developers and experienced
38 * professionals having in-depth computer knowledge. Users are therefore
39 * encouraged to load and test the software's suitability as regards their
40 * requirements in conditions enabling the security of their systems and/or
41 * data to be ensured and, more generally, to use and operate it in the
42 * same conditions as regards security.
43 *
44 * The fact that you are presently reading this means that you have had
45 * knowledge of the CeCILL license and that you accept its terms.
46 */
47 #include "ChoiceParameter.h"
48 #include <QComboBox>
49 #include <QDomNamedNodeMap>
50 #include <QGridLayout>
51 #include <QLabel>
52 #include <QWidget>
53 #include "Common.h"
54
ChoiceParameter(QDomNode node,QObject * parent)55 ChoiceParameter::ChoiceParameter(QDomNode node, QObject * parent) : AbstractParameter(parent), _node(node), _label(0), _comboBox(0)
56 {
57 _name = node.attributes().namedItem("name").nodeValue();
58
59 QString def = node.toElement().attribute("default", "0");
60 QString value = node.toElement().attribute("savedValue", def);
61 _default = def.toInt();
62 _value = value.toInt();
63 }
64
~ChoiceParameter()65 ChoiceParameter::~ChoiceParameter()
66 {
67 delete _comboBox;
68 delete _label;
69 }
70
addTo(QWidget * widget,int row)71 void ChoiceParameter::addTo(QWidget * widget, int row)
72 {
73 QGridLayout * grid = dynamic_cast<QGridLayout *>(widget->layout());
74 if (!grid)
75 return;
76 delete _comboBox;
77 delete _label;
78
79 _comboBox = new QComboBox(widget);
80 QDomNamedNodeMap attributes = _node.attributes();
81 bool done = false;
82 for (int i = 0; i < 50 && !done; ++i) {
83 QDomAttr attr = attributes.namedItem(QString("choice%1").arg(i)).toAttr();
84 if (attr.isNull()) {
85 done = true;
86 } else {
87 _comboBox->addItem(attr.nodeValue(), QVariant(i));
88 }
89 }
90 _comboBox->setCurrentIndex(_value);
91
92 grid->addWidget(_label = new QLabel(_name, widget), row, 0, 1, 1);
93 grid->addWidget(_comboBox, row, 1, 1, 2);
94 connect(_comboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(onComboBoxIndexChanged(int)));
95 }
96
textValue() const97 QString ChoiceParameter::textValue() const
98 {
99 return QString("%1").arg(_comboBox->currentIndex());
100 }
101
setValue(const QString & value)102 void ChoiceParameter::setValue(const QString & value)
103 {
104 _value = value.toInt();
105 if (_comboBox) {
106 _comboBox->setCurrentIndex(_value);
107 }
108 }
109
reset()110 void ChoiceParameter::reset()
111 {
112 _comboBox->setCurrentIndex(_default);
113 _value = _default;
114 }
115
saveValueInDOM()116 void ChoiceParameter::saveValueInDOM()
117 {
118 _node.toElement().setAttribute("savedValue", _comboBox->currentIndex());
119 }
120
onComboBoxIndexChanged(int i)121 void ChoiceParameter::onComboBoxIndexChanged(int i)
122 {
123 _value = i;
124 emit valueChanged();
125 }
126