30 lines
834 B
C++
30 lines
834 B
C++
#ifndef BWIDGETS_FOCUS_HANDLER_HPP
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#define BWIDGETS_FOCUS_HANDLER_HPP
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#include <functional>
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struct SDL_Rect;
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namespace bwidgets
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{
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class FocusHandler
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{
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public:
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FocusHandler() = default;
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FocusHandler(const FocusHandler&) = delete;
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FocusHandler(FocusHandler&&) = delete;
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auto operator=(FocusHandler&&) = delete;
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auto operator=(const FocusHandler&) = delete;
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virtual ~FocusHandler() = default;
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// set focus state.
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virtual void focus(bool focus) = 0;
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// get focus state.
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virtual bool focus() = 0;
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// set an handler for focus states changes.
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virtual void focus_handler(std::function<void(bool)>) = 0;
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};
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}
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#endif
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