James DeLisle ed6a3ce0af Update the bindable properties example
- Fix the number of months in each duration
- Move the user Country enum to use QLocale::Territory
- Properly calculate the cost per month to match the UI label
- Use QLocale to format the price display text
- Fix some misspellings and grammar in the doc

Pick-to: 6.2 6.5
Change-Id: I78a64f344073070cd94d5cb4a8a4c7c13afa337f
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
2023-03-09 12:27:00 -05:00

52 lines
1.1 KiB
C++

// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "bindablesubscription.h"
#include "bindableuser.h"
//! [binding-expressions]
BindableSubscription::BindableSubscription(BindableUser *user) : m_user(user)
{
Q_ASSERT(user);
m_price.setBinding([this] { return qRound(calculateDiscount() * m_duration * basePrice()); });
m_isValid.setBinding([this] {
return m_user->country() != BindableUser::Country::AnyCountry && m_user->age() > 12;
});
}
//! [binding-expressions]
//! [set-duration]
void BindableSubscription::setDuration(Duration newDuration)
{
m_duration = newDuration;
}
//! [set-duration]
double BindableSubscription::calculateDiscount() const
{
switch (m_duration) {
case Monthly:
return 1;
case Quarterly:
return 0.9;
case Yearly:
return 0.6;
}
Q_ASSERT(false);
return -1;
}
int BindableSubscription::basePrice() const
{
if (m_user->country() == BindableUser::Country::AnyCountry)
return 0;
return (m_user->country() == BindableUser::Country::Norway) ? 100 : 80;
}