RmlUi/Source/Controls/InputTypeRange.cpp

/*
 * This source file is part of RmlUi, the HTML/CSS Interface Middleware
 *
 * For the latest information, see http://github.com/mikke89/RmlUi
 *
 * Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
 * Copyright (c) 2019 The RmlUi Team, and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

#include "InputTypeRange.h"
#include "WidgetSliderInput.h"
#include "../../Include/RmlUi/Controls/ElementFormControlInput.h"

namespace Rml {
namespace Controls {

InputTypeRange::InputTypeRange(ElementFormControlInput* element) : InputType(element)
{
	widget = new WidgetSliderInput(element);
	widget->Initialise();
}

InputTypeRange::~InputTypeRange()
{
	delete widget;
}

// Returns a string representation of the current value of the form control.
Rml::Core::String InputTypeRange::GetValue() const
{
	return Rml::Core::CreateString(32, "%f", widget->GetValue());
}

// Called every update from the host element.
void InputTypeRange::OnUpdate()
{
	widget->Update();
}

void InputTypeRange::OnResize()
{
	widget->FormatElements();
}

// Checks for necessary functional changes in the control as a result of changed attributes.
bool InputTypeRange::OnAttributeChange(const Core::ElementAttributes& changed_attributes)
{
	bool dirty_layout = false;

	auto it_orientation = changed_attributes.find("orientation");
	if (it_orientation != changed_attributes.end())
	{
		bool is_vertical = (it_orientation->second.Get<Rml::Core::String>() == "vertical");
		widget->SetOrientation(is_vertical ? WidgetSliderInput::VERTICAL : WidgetSliderInput::HORIZONTAL);
		dirty_layout = true;
	}

	auto it_step = changed_attributes.find("step");
	if (it_step != changed_attributes.end())
		widget->SetStep(it_step->second.Get(1.0f));

	auto it_min = changed_attributes.find("min");
	if (it_min != changed_attributes.end())
		widget->SetMinValue(it_min->second.Get(0.0f));

	auto it_max = changed_attributes.find("max");
	if (it_max != changed_attributes.end())
		widget->SetMaxValue(it_max->second.Get(100.f));

	auto it_value = changed_attributes.find("value");
	if (it_value != changed_attributes.end())
		widget->SetValue(it_value->second.Get(0.0f));

	return !dirty_layout;
}

// Checks for necessary functional changes in the control as a result of the event.
void InputTypeRange::ProcessDefaultAction(Core::Event& /*event*/)
{
}

// Sizes the dimensions to the element's inherent size.
bool InputTypeRange::GetIntrinsicDimensions(Rml::Core::Vector2f& dimensions)
{
	widget->GetDimensions(dimensions);
	return true;
}

}
}