ES-DE/es-core/src/components/SliderComponent.h

70 lines
1.7 KiB
C++

// SPDX-License-Identifier: MIT
//
// EmulationStation Desktop Edition
// SliderComponent.h
//
// Slider to set value in a predefined range.
//
#ifndef ES_CORE_COMPONENTS_SLIDER_COMPONENT_H
#define ES_CORE_COMPONENTS_SLIDER_COMPONENT_H
#include "GuiComponent.h"
#include "components/ImageComponent.h"
#include "resources/Font.h"
// Slider to set value in a predefined range.
class SliderComponent : public GuiComponent
{
public:
using GuiComponent::getValue;
using GuiComponent::setValue;
// Minimum and maximum values, how much to increment each step the knob is moved and
// an optional unit.
SliderComponent(float min, float max, float increment, const std::string& suffix = "");
void setCallback(const std::function<void()>& callbackFunc)
{
mChangedValueCallback = callbackFunc;
}
void setValue(float value);
float getValue() { return mValue; }
bool input(InputConfig* config, Input input) override;
void update(int deltaTime) override;
void render(const glm::mat4& parentTrans) override;
void onSizeChanged() override;
void setOpacity(float opacity) override
{
mOpacity = opacity;
mTextCache->setOpacity(opacity);
}
std::vector<HelpPrompt> getHelpPrompts() override;
private:
void onValueChanged();
Renderer* mRenderer;
float mMin, mMax;
float mValue;
float mSingleIncrement;
float mMoveRate;
float mBarHeight;
float mBarPosY;
int mMoveAccumulator;
ImageComponent mKnob;
ImageComponent mKnobDisabled;
std::string mSuffix;
std::shared_ptr<Font> mFont;
std::shared_ptr<TextCache> mTextCache;
std::function<void()> mChangedValueCallback;
};
#endif // ES_CORE_COMPONENTS_SLIDER_COMPONENT_H