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50
51 #include "informationwindow.h"
52
53 //! [0]
InformationWindow(int id,QSqlRelationalTableModel * items,QWidget * parent)54 InformationWindow::InformationWindow(int id, QSqlRelationalTableModel *items,
55 QWidget *parent)
56 : QDialog(parent)
57 {
58 //! [0] //! [1]
59 QLabel *itemLabel = new QLabel(tr("Item: "));
60 QLabel *descriptionLabel = new QLabel(tr("Description: "));
61 QLabel *imageFileLabel = new QLabel(tr("Image file: "));
62
63 createButtons();
64
65 itemText = new QLabel;
66 descriptionEditor = new QTextEdit;
67 //! [1]
68
69 //! [2]
70 imageFileEditor = new QComboBox;
71 imageFileEditor->setModel(items->relationModel(1));
72 imageFileEditor->setModelColumn(items->relationModel(1)->fieldIndex("file"));
73 //! [2]
74
75 //! [3]
76 mapper = new QDataWidgetMapper(this);
77 mapper->setModel(items);
78 mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
79 mapper->setItemDelegate(new QSqlRelationalDelegate(mapper));
80 mapper->addMapping(imageFileEditor, 1);
81 mapper->addMapping(itemText, 2, "text");
82 mapper->addMapping(descriptionEditor, 3);
83 mapper->setCurrentIndex(id);
84 //! [3]
85
86 //! [4]
87 connect(descriptionEditor, &QTextEdit::textChanged, [=]() {
88 enableButtons();
89 });
90 connect(imageFileEditor, QOverload<int>::of(&QComboBox::currentIndexChanged), [=]() {
91 enableButtons();
92 });
93
94 QFormLayout *formLayout = new QFormLayout;
95 formLayout->addRow(itemLabel, itemText);
96 formLayout->addRow(imageFileLabel, imageFileEditor);
97 formLayout->addRow(descriptionLabel, descriptionEditor);
98
99 QVBoxLayout *layout = new QVBoxLayout;
100 layout->addLayout(formLayout);
101 layout->addWidget(buttonBox);
102 setLayout(layout);
103
104 itemId = id;
105 displayedImage = imageFileEditor->currentText();
106
107 setWindowFlags(Qt::Window);
108 enableButtons(false);
109 setWindowTitle(itemText->text());
110 }
111 //! [4]
112
113 //! [5]
id() const114 int InformationWindow::id() const
115 {
116 return itemId;
117 }
118 //! [5]
119
120 //! [6]
revert()121 void InformationWindow::revert()
122 {
123 mapper->revert();
124 enableButtons(false);
125 }
126 //! [6]
127
128 //! [7]
submit()129 void InformationWindow::submit()
130 {
131 QString newImage(imageFileEditor->currentText());
132
133 if (displayedImage != newImage) {
134 displayedImage = newImage;
135 emit imageChanged(itemId, newImage);
136 }
137
138 mapper->submit();
139 mapper->setCurrentIndex(itemId);
140
141 enableButtons(false);
142 }
143 //! [7]
144
145 //! [8]
createButtons()146 void InformationWindow::createButtons()
147 {
148 closeButton = new QPushButton(tr("&Close"));
149 revertButton = new QPushButton(tr("&Revert"));
150 submitButton = new QPushButton(tr("&Submit"));
151
152 closeButton->setDefault(true);
153
154 connect(closeButton, &QPushButton::clicked, this, &InformationWindow::close);
155 connect(revertButton, &QPushButton::clicked, this, &InformationWindow::revert);
156 connect(submitButton, &QPushButton::clicked, this, &InformationWindow::submit);
157 //! [8]
158
159 //! [9]
160 buttonBox = new QDialogButtonBox(this);
161 buttonBox->addButton(submitButton, QDialogButtonBox::AcceptRole);
162 buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole);
163 buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);
164 }
165 //! [9]
166
167 //! [10]
enableButtons(bool enable)168 void InformationWindow::enableButtons(bool enable)
169 {
170 revertButton->setEnabled(enable);
171 submitButton->setEnabled(enable);
172 }
173 //! [10]
174
175
176