156 lines
4.9 KiB
C++
Executable File
156 lines
4.9 KiB
C++
Executable File
#include "lts_message_dialog_helper.h"
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#include <QPushButton>
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QEventLoop>
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namespace LtsWidgets
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{
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LtsMessageDialogHelper::LtsMessageDialogHelper(QObject *parent)
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: QObject(parent)
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, m_result(Button::Cancel)
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, m_dialog(nullptr)
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{}
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Button LtsMessageDialogHelper::showMessage(QWidget *parent,
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const QString &message,
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const QString &title,
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Behaviour behaviour,
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Buttons buttons,
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const QHash<Button, QString> &buttonTexts)
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{
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m_dialog = new LtsFramelessDialog(parent, behaviour);
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m_dialog->setAttribute(Qt::WA_DeleteOnClose); // Message Dialogs are loose instances that must delete theirselves, because noone keeps a pointer to the message dialog
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QVBoxLayout *mainLayout = new QVBoxLayout(m_dialog);
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QString text;
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if (!title.isEmpty()) // title given?
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{
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text = QStringLiteral("<b>%1</b><br><br>").arg(title);
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}
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text += message;
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QLabel *messageLabel = new QLabel(text, m_dialog);
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messageLabel->setTextInteractionFlags(Qt::TextSelectableByMouse); // make text selectable by mouse
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mainLayout->addWidget(messageLabel);
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QHBoxLayout *buttonLayout = new QHBoxLayout;
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buttonLayout->setMargin(0);
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// TODO: FIXME: can this be called after the selection was made and the shadow just dies ?
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connect(m_dialog, &LtsFramelessDialog::rejected, this, &LtsMessageDialogHelper::slotCancel); // respect that non-modal dialogs can be closed by clicking outside of it
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if (buttons.testFlag(Button::Ok))
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connect(addButton(buttonTexts.value(Button::Ok, tr("Ok")), buttonLayout, m_dialog, Button::Ok, parent),
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&QPushButton::clicked, this, &LtsMessageDialogHelper::slotOkay);
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if (buttons.testFlag(Button::Yes))
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connect(addButton(buttonTexts.value(Button::Yes, tr("Yes")), buttonLayout, m_dialog, Button::Yes, parent),
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&QPushButton::clicked, this, &LtsMessageDialogHelper::slotYes);
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if (buttons.testFlag(Button::No))
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connect(addButton(buttonTexts.value(Button::No, tr("No")), buttonLayout, m_dialog, Button::No, parent),
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&QPushButton::clicked, this, &LtsMessageDialogHelper::slotNo);
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if (buttons.testFlag(Button::Apply))
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connect(addButton(buttonTexts.value(Button::Apply, tr("Apply")), buttonLayout, m_dialog, Button::Apply, parent),
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&QPushButton::clicked, this, &LtsMessageDialogHelper::slotApply); // same as yes
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if (buttons.testFlag(Button::Discard))
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connect(addButton(buttonTexts.value(Button::Discard, tr("Discard")), buttonLayout, m_dialog, Button::Discard, parent),
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&QPushButton::clicked, this, &LtsMessageDialogHelper::slotDiscard); // same as no
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if (buttons.testFlag(Button::Cancel))
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connect(addButton(buttonTexts.value(Button::Cancel, tr("Cancel")), buttonLayout, m_dialog, Button::Cancel, parent),
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&QPushButton::clicked, this, &LtsMessageDialogHelper::slotCancel);
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QWidget *buttonLayoutWidget = new QWidget;
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buttonLayoutWidget->setLayout(buttonLayout);
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mainLayout->addWidget(buttonLayoutWidget);
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m_dialog->show();
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m_dialog->raise();
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// this class is called a dialog, but is not a QDialog, so there is no event loop to wait for a result to return, so we create our own event loop
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QEventLoop loop;
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connect(this, &LtsMessageDialogHelper::signalQuitEventLoop, &loop, &QEventLoop::quit, Qt::QueuedConnection);
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loop.exec(); // now wait for new result value before returning
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return m_result;
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}
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void LtsMessageDialogHelper::slotOkay()
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{
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m_dialog->hide();
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m_result = Button::Ok;
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emit signalQuitEventLoop();
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}
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void LtsMessageDialogHelper::slotYes()
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{
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m_dialog->hide();
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m_result = Button::Yes;
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emit signalQuitEventLoop();
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}
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void LtsMessageDialogHelper::slotNo()
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{
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m_dialog->hide();
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m_result = Button::No;
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emit signalQuitEventLoop();
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}
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void LtsMessageDialogHelper::slotApply()
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{
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m_dialog->hide();
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m_result = Button::Apply;
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emit signalQuitEventLoop();
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}
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void LtsMessageDialogHelper::slotDiscard()
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{
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m_dialog->hide();
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m_result = Button::Discard;
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emit signalQuitEventLoop();
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}
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void LtsMessageDialogHelper::slotCancel()
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{
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m_dialog->hide();
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m_result = Button::Cancel;
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emit signalQuitEventLoop();
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}
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QPushButton* LtsMessageDialogHelper::addButton(const QString &text, QHBoxLayout *thatLayout, LtsFramelessDialog *dialog, const Button &button, QWidget *parent)
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{
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QPushButton* btn = new QPushButton(text, parent);
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connect(btn, &QPushButton::clicked, dialog, &LtsFramelessDialog::accept);
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thatLayout->addWidget(btn);
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if (button == Button::Ok ||
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button == Button::Cancel) // ok and cancel should not be used together, so there is no check needed (as only one button can be the default button)
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{
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btn->setDefault(true);
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}
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return btn;
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}
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} // namespace LtsWidgets
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