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Sketches first design for generalising keyboard input.

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This commit is contained in:
Thomas Harte 2017-10-09 22:26:39 -04:00
parent 19c03a08a6
commit edb632af52
3 changed files with 113 additions and 0 deletions
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38
Inputs/Keyboard.cpp Normal file
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@ -0,0 +1,38 @@
//
// Keyboard.cpp
// Clock Signal
//
// Created by Thomas Harte on 10/9/17.
// Copyright © 2017 Thomas Harte. All rights reserved.
//
#include "Keyboard.hpp"
using namespace Inputs;
Keyboard::Keyboard() {}
void Keyboard::set_key_pressed(Key key, bool is_pressed) {
size_t key_offset = static_cast<size_t>(key);
if(key_offset > key_states_.size()) {
key_states_.resize(key_offset, false);
}
key_states_[key_offset] = is_pressed;
if(delegate_) delegate_->keyboard_did_change_key(this, key, is_pressed);
}
void Keyboard::reset_all_keys() {
std::fill(key_states_.begin(), key_states_.end(), false);
if(delegate_) delegate_->reset_all_keys();
}
void Keyboard::set_delegate(Delegate *delegate) {
delegate_ = delegate;
}
bool Keyboard::get_key_state(Key key) {
size_t key_offset = static_cast<size_t>(key);
if(key_offset >= key_states_.size()) return false;
return key_states_[key_offset];
}

60
Inputs/Keyboard.hpp Normal file
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//
// Keyboard.hpp
// Clock Signal
//
// Created by Thomas Harte on 10/9/17.
// Copyright © 2017 Thomas Harte. All rights reserved.
//
#ifndef Keyboard_hpp
#define Keyboard_hpp
#include <vector>
namespace Inputs {
/*!
Provides an intermediate idealised model of a modern-era computer keyboard
(so, heavily indebted to the current Windows and Mac layouts), allowing a host
machine to toggle states, while an interested party either observes or polls.
*/
class Keyboard {
public:
Keyboard();
enum class Key {
Escape, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, PrintScreen, ScrollLock, Pause,
BackTick, k1, k2, k3, k4, k5, k6, k7, k8, k9, k0, Hyphen, Equals, BackSpace,
Tab, Q, W, E, R, T, Y, U, I, O, P, OpenSquareBracket, CloseSquareBracket, BackSlash,
CapsLock, A, S, D, F, G, H, J, K, L, Semicolon, Quote, Hash, Enter,
LeftShift, Z, X, C, V, B, N, M, Comma, FullStop, ForwardSlash, RightShift,
LeftControl, LeftOption, LeftMeta, Space, RightMeta, RightOption,
Left, Right, Up, Down,
Insert, Home, PageUp, Delete, End, PageDown,
NumLock, KeyPadSlash, KeyPadAsterisk, KeyPadDelete,
KeyPad7, KeyPad8, KeyPad9, KeyPadPlus,
KeyPad4, KeyPad5, KeyPad6,
KeyPad1, KeyPad2, KeyPad3, KeyPadEnter,
KeyPad0, KeyPadDecimalPoint
};
// Host interface.
void set_key_pressed(Key key, bool is_pressed);
void reset_all_keys();
// Delegate interface.
struct Delegate {
virtual void keyboard_did_change_key(Keyboard *keyboard, Key key, bool is_pressed) = 0;
virtual void reset_all_keys() = 0;
};
void set_delegate(Delegate *delegate);
bool get_key_state(Key key);
private:
std::vector<bool> key_states_;
Delegate *delegate_ = nullptr;
};
}
#endif /* Keyboard_hpp */

15
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
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@ -115,6 +115,7 @@
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@ -689,6 +690,8 @@
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@ -1715,6 +1718,16 @@
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children = (
4B86E2591F8C628F006FAA45 /* Keyboard.cpp */,
4B86E25A1F8C628F006FAA45 /* Keyboard.hpp */,
);
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path = ../../Inputs;
sourceTree = "<group>";
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isa = PBXGroup;
children = (
@ -2070,6 +2083,7 @@
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4BC9DF4A1D04691600F44158 /* Components */,
4B3940E81DA83C8700427841 /* Concurrency */,
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4BB73EDC1B587CA500552FC2 /* Machines */,
4BB697C81D4B559300248BDF /* NumberTheory */,
4B366DFD1B5C165F0026627B /* Outputs */,
@ -2951,6 +2965,7 @@
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