informationwindow.cpp Example File
drilldown/informationwindow.cpp
#include "informationwindow.h"
InformationWindow::InformationWindow(int id, QSqlRelationalTableModel *items,
QWidget *parent)
: QDialog(parent)
{
QLabel *itemLabel = new QLabel(tr("Item: "));
QLabel *descriptionLabel = new QLabel(tr("Description: "));
QLabel *imageFileLabel = new QLabel(tr("Image file: "));
createButtons();
itemText = new QLabel;
descriptionEditor = new QTextEdit;
imageFileEditor = new QComboBox;
imageFileEditor->setModel(items->relationModel(1));
imageFileEditor->setModelColumn(items->relationModel(1)->fieldIndex("file"));
mapper = new QDataWidgetMapper(this);
mapper->setModel(items);
mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
mapper->setItemDelegate(new QSqlRelationalDelegate(mapper));
mapper->addMapping(imageFileEditor, 1);
mapper->addMapping(itemText, 2, "text");
mapper->addMapping(descriptionEditor, 3);
mapper->setCurrentIndex(id);
connect(descriptionEditor, &QTextEdit::textChanged, [=]() {
enableButtons();
});
connect(imageFileEditor, QOverload<int>::of(&QComboBox::currentIndexChanged), [=]() {
enableButtons();
});
QFormLayout *formLayout = new QFormLayout;
formLayout->addRow(itemLabel, itemText);
formLayout->addRow(imageFileLabel, imageFileEditor);
formLayout->addRow(descriptionLabel, descriptionEditor);
QVBoxLayout *layout = new QVBoxLayout;
layout->addLayout(formLayout);
layout->addWidget(buttonBox);
setLayout(layout);
itemId = id;
displayedImage = imageFileEditor->currentText();
setWindowFlags(Qt::Window);
enableButtons(false);
setWindowTitle(itemText->text());
}
int InformationWindow::id() const
{
return itemId;
}
void InformationWindow::revert()
{
mapper->revert();
enableButtons(false);
}
void InformationWindow::submit()
{
QString newImage(imageFileEditor->currentText());
if (displayedImage != newImage) {
displayedImage = newImage;
emit imageChanged(itemId, newImage);
}
mapper->submit();
mapper->setCurrentIndex(itemId);
enableButtons(false);
}
void InformationWindow::createButtons()
{
closeButton = new QPushButton(tr("&Close"));
revertButton = new QPushButton(tr("&Revert"));
submitButton = new QPushButton(tr("&Submit"));
closeButton->setDefault(true);
connect(closeButton, &QPushButton::clicked, this, &InformationWindow::close);
connect(revertButton, &QPushButton::clicked, this, &InformationWindow::revert);
connect(submitButton, &QPushButton::clicked, this, &InformationWindow::submit);
buttonBox = new QDialogButtonBox(this);
buttonBox->addButton(submitButton, QDialogButtonBox::AcceptRole);
buttonBox->addButton(revertButton, QDialogButtonBox::ResetRole);
buttonBox->addButton(closeButton, QDialogButtonBox::RejectRole);
}
void InformationWindow::enableButtons(bool enable)
{
revertButton->setEnabled(enable);
submitButton->setEnabled(enable);
}