95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
#pragma once
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// system includes
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#include <string>
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// 3rdparty lib includes
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#include <fmt/core.h>
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// local includes
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#include "utils.h"
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namespace {
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class TextInterface {
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public:
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virtual std::string text() const = 0;
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};
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class EmptyText : public virtual TextInterface
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{
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public:
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std::string text() const override { return {}; }
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};
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template<const char *Ttext>
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class StaticText : public virtual TextInterface
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{
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public:
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static constexpr const char *STATIC_TEXT = Ttext;
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std::string text() const override { return Ttext; }
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};
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class ChangeableText : public virtual TextInterface
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{
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public:
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std::string text() const override { return m_title; }
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void setTitle(std::string &&title) { m_title = std::move(title); }
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void setTitle(const std::string &title) { m_title = title; }
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private:
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std::string m_title;
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};
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template<const char *Ttext, typename Ttype, Ttype *Tptr, typename TreturnType, TreturnType (Ttype::*Tmethod)()>
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class StatusTextHelper : public virtual TextInterface
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{
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public:
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std::string text() const override { using std::to_string; using ::to_string; return Ttext + to_string((Tptr->*Tmethod)()); }
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};
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template<const char *Ttext, typename TreturnType, TreturnType (*Tmethod)()>
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class StaticStatusTextHelper : public virtual TextInterface
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{
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public:
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std::string text() const override { using std::to_string; using ::to_string; return Ttext + to_string(Tmethod()); }
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};
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template<typename T>
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class CachedText : public virtual T
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{
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public:
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std::string text() const override
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{
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if (!m_loaded)
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{
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m_text = T::text();
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m_loaded = true;
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}
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return m_text;
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}
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private:
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mutable bool m_loaded{};
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mutable std::string m_text;
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};
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template<typename T>
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class StaticallyCachedText : public virtual T
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{
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public:
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std::string text() const override
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{
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static const auto text = T::text();
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return text;
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}
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};
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template<const char *Tprefix, typename Taccessor>
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struct TextWithValueHelper : public virtual TextInterface
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{
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std::string text() const override { return fmt::format("{} {}", Tprefix, Taccessor{}.getValue()); }
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};
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}
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