examples/7guis/temperature_converter/src/main.cpp

Note

This Source File belongs to 7GUIs Temperature Converter Example. Please follow the link for example explanation.

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#include <AUI/Platform/Entry.h>
#include <AUI/Platform/AWindow.h>
#include <AUI/Util/UIBuildingHelpers.h>
#include <AUI/View/AButton.h>
#include "AUI/View/ATextField.h"
#include "AUI/View/ANumberPicker.h"
 
using namespace declarative;
 
auto myPicker() {
   return _new<ANumberPicker>() let {
       it->setMin(-999);
       it->setMax(999);
   };
}
 
class TemperatureConverterWindow : public AWindow {
public:
   TemperatureConverterWindow() : AWindow("AUI - 7GUIs - TempConv", 300_dp, 50_dp) {
       setContents(Centered {
         Horizontal {
           myPicker() let {
               biConnect(it->value(), mCelsius);
               it->focus();
           },
           Label { "°C" },
           Label { "=" } with_style { Margin { {}, 16_dp } },
           myPicker() let { biConnect(it->value(), mFahrenheit); },
           Label { "°F" },
         },
       });
 
       connect(mFahrenheit.changed, [&] { mCelsius = (*mFahrenheit - 32.f) * (5.f / 9.f); });
       connect(mCelsius.changed, [&] { mFahrenheit = *mCelsius * (9.f / 5.f) + 32.f; });
   }
 
private:
   AProperty<int> mCelsius, mFahrenheit;
};
 
AUI_ENTRY {
   _new<TemperatureConverterWindow>()->show();
   return 0;
}

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