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