mgl_ui_input_scope.h

[詳解]

// SPDX-License-Identifier: Zlib
/* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- */
 
#ifndef INCGUARD_MGL_UI_INPUT_SCOPE_H_1698499179
#define INCGUARD_MGL_UI_INPUT_SCOPE_H_1698499179
 
#include <mgl/math/mgl_rectangle.h>
 
namespace MGL::UI
{
enum class ScopeOutBehavior : uint8_t
{
    Unfocus,    
    Keep        
};
 
class InputScope
{
public:
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr InputScope() noexcept = default;
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr InputScope(const Rectangle &scope,
                         ScopeOutBehavior behavior = ScopeOutBehavior::Unfocus) noexcept
        : _isValid(scope.width <= 0.0f || scope.height <= 0.0f)
        , _scope(scope)
        , _behavior(behavior)
    {
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr void SetScope(const Rectangle &scope) noexcept
    {
        _scope = scope;
        _isValid = (scope.width <= 0.0f || scope.height <= 0.0f);
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    constexpr void SetBehavior(ScopeOutBehavior behavior) noexcept
    {
        _behavior = behavior;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    [[nodiscard]] constexpr ScopeOutBehavior GetBehavior() const noexcept
    {
        return _behavior;
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    [[nodiscard]] bool IsEnclosed(const Vector2 &position) const noexcept
    {
        return _scope.IsEnclosed(position);
    }
 
    /* ------------------------------------------------------------------------- */
    /* ------------------------------------------------------------------------- */
    [[nodiscard]] constexpr bool IsValid() const noexcept
    {
        return _isValid;
    }
 
private:
    bool _isValid{false};
    Rectangle _scope;
    ScopeOutBehavior _behavior{ScopeOutBehavior::Unfocus};
};
 
}    // namespace MGL::UI
 
#endif    // INCGUARD_MGL_UI_INPUT_SCOPE_H_1698499179
 
// vim: et ts=4 sw=4 sts=4