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73fdbba59c
This was a workaround to be able to build on case-insensitive file systems where it might get confused about <string.h> vs <String.h>. Let's just not support building that way, so String.h can have an objectively nicer name. :^)
43 lines
887 B
C++
43 lines
887 B
C++
#pragma once
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#include <AK/String.h>
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// This type implements number typing and
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// displaying mechanics. It does not perform
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// any arithmetic operations or anything on
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// the values it deals with.
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class Keypad final {
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public:
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Keypad();
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~Keypad();
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void type_digit(int digit);
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void type_decimal_point();
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void type_backspace();
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double value() const;
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void set_value(double);
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String to_string() const;
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private:
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// Internal representation ofthe current decimal value.
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bool m_negative { false };
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long m_int_value { 0 };
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long m_frac_value { 0 };
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int m_frac_length { 0 };
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// E.g. for -35.004200,
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// m_negative = true
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// m_int_value = 35
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// m_frac_value = 4200
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// m_frac_length = 6
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enum class State {
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External,
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TypingInteger,
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TypingDecimal
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};
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State m_state { State::External };
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};
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