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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include <cctype>
#include <SDL_keycode.h>
#include "KeyCodes.h"
#include "System/Log/ILog.h"
#include "System/Platform/SDL1_keysym.h"
#include "System/StringUtil.h"
CKeyCodes keyCodes;
int CKeyCodes::GetCode(const std::string& name) const
{
const auto pred = [](const NameCodePair& a, const NameCodePair& b) { return (a.first < b.first); };
const auto iter = std::lower_bound(nameToCode.begin(), nameToCode.end(), NameCodePair{name, 0}, pred);
if (iter == nameToCode.end() || iter->first != name)
return -1;
return iter->second;
}
std::string CKeyCodes::GetName(int code) const
{
const auto pred = [](const CodeNamePair& a, const CodeNamePair& b) { return (a.first < b.first); };
const auto iter = std::lower_bound(codeToName.begin(), codeToName.end(), CodeNamePair{0, ""}, pred);
if (iter == codeToName.end() || iter->first != code)
return IntToString(code, "0x%03X");
return iter->second;
}
std::string CKeyCodes::GetDefaultName(int code) const
{
const auto pred = [](const CodeNamePair& a, const CodeNamePair& b) { return (a.first < b.first); };
const auto iter = std::lower_bound(defaultCodeToName.begin(), defaultCodeToName.end(), CodeNamePair{0, ""}, pred);
if (iter == defaultCodeToName.end() || iter->first != code)
return IntToString(code, "0x%03X");
return iter->second;
}
bool CKeyCodes::AddKeySymbol(const std::string& name, int code)
{
if ((code < 0) || !IsValidLabel(name))
return false;
const std::string keysym = StringToLower(name);
// do not allow existing keysyms to be renamed
const auto namePred = [](const NameCodePair& a, const NameCodePair& b) { return (a.first < b.first); };
const auto nameIter = std::lower_bound(nameToCode.begin(), nameToCode.end(), NameCodePair{keysym, 0}, namePred);
if (nameIter != nameToCode.end() && nameIter->first == name)
return false;
nameToCode.emplace_back(keysym, code);
// assumes that the user would rather see their own names
codeToName.emplace_back(code, keysym);
// swap into position
for (size_t i = nameToCode.size() - 1; i > 0; i--) {
if (nameToCode[i - 1].first < nameToCode[i].first)
break;
std::swap(nameToCode[i - 1], nameToCode[i]);
}
for (size_t i = codeToName.size() - 1; i > 0; i--) {
if (codeToName[i - 1].first < codeToName[i].first)
break;
std::swap(codeToName[i - 1], codeToName[i]);
}
return true;
}
bool CKeyCodes::IsValidLabel(const std::string& label)
{
if (label.empty())
return false;
if (!isalpha(label[0]))
return false;
// if any character is not alpha-numeric *and* not space, reject label as invalid
return (std::find_if(label.begin(), label.end(), [](char c) { return (!isalnum(c) && (c != '_')); }) == label.end());
}
bool CKeyCodes::IsModifier(int code)
{
switch (code) {
case SDLK_LALT:
case SDLK_LCTRL:
case SDLK_LGUI:
case SDLK_LSHIFT:
case SDLK_RALT:
case SDLK_RCTRL:
case SDLK_RGUI:
case SDLK_RSHIFT:
return true;
}
return false;
}
bool CKeyCodes::IsPrintable(int code) const
{
const auto pred = [](int a, int b) { return (a < b); };
const auto iter = std::lower_bound(printableCodes.begin(), printableCodes.end(), code, pred);
return (iter != printableCodes.end() && *iter == code);
}
void CKeyCodes::AddPair(const std::string& name, const int code, const bool printable)
{
nameToCode.emplace_back(name, code);
codeToName.emplace_back(code, name);
if (!printable)
return;
printableCodes.push_back(code);
}
void CKeyCodes::Reset()
{
nameToCode.clear();
nameToCode.reserve(64);
codeToName.clear();
codeToName.reserve(64);
printableCodes.clear();
printableCodes.reserve(64);
AddPair("backspace", SDLK_BACKSPACE);
AddPair("tab", SDLK_TAB);
AddPair("clear", SDLK_CLEAR);
AddPair("enter", SDLK_RETURN); //FIXME
AddPair("return", SDLK_RETURN);
AddPair("pause", SDLK_PAUSE);
AddPair("esc", SDLK_ESCAPE);
AddPair("escape", SDLK_ESCAPE);
AddPair("space", SDLK_SPACE, true);
AddPair("delete", SDLK_DELETE);
// ASCII mapped keysyms
for (unsigned char i = ' '; i <= 'z'; ++i) {
if (isupper(i))
continue;
AddPair(std::string(1, i), i, true);
}
AddPair("ยง", 0xA7, true);
AddPair("~", SDLK_BACKQUOTE, true);
AddPair("tilde", SDLK_BACKQUOTE, true);
AddPair("backquote", SDLK_BACKQUOTE, true);
// Numeric keypad
AddPair("numpad0", SDLK_KP_0, true);
AddPair("numpad1", SDLK_KP_1, true);
AddPair("numpad2", SDLK_KP_2, true);
AddPair("numpad3", SDLK_KP_3, true);
AddPair("numpad4", SDLK_KP_4, true);
AddPair("numpad5", SDLK_KP_5, true);
AddPair("numpad6", SDLK_KP_6, true);
AddPair("numpad7", SDLK_KP_7, true);
AddPair("numpad8", SDLK_KP_8, true);
AddPair("numpad9", SDLK_KP_9, true);
AddPair("numpad.", SDLK_KP_PERIOD, true);
AddPair("numpad/", SDLK_KP_DIVIDE, true);
AddPair("numpad*", SDLK_KP_MULTIPLY, true);
AddPair("numpad-", SDLK_KP_MINUS, true);
AddPair("numpad+", SDLK_KP_PLUS, true);
AddPair("numpad=", SDLK_KP_EQUALS, true);
AddPair("numpad_enter", SDLK_KP_ENTER);
// Arrows + Home/End pad
AddPair("up", SDLK_UP);
AddPair("down", SDLK_DOWN);
AddPair("right", SDLK_RIGHT);
AddPair("left", SDLK_LEFT);
AddPair("insert", SDLK_INSERT);
AddPair("home", SDLK_HOME);
AddPair("end", SDLK_END);
AddPair("pageup", SDLK_PAGEUP);
AddPair("pagedown", SDLK_PAGEDOWN);
// Function keys
AddPair("f1", SDLK_F1);
AddPair("f2", SDLK_F2);
AddPair("f3", SDLK_F3);
AddPair("f4", SDLK_F4);
AddPair("f5", SDLK_F5);
AddPair("f6", SDLK_F6);
AddPair("f7", SDLK_F7);
AddPair("f8", SDLK_F8);
AddPair("f9", SDLK_F9);
AddPair("f10", SDLK_F10);
AddPair("f11", SDLK_F11);
AddPair("f12", SDLK_F12);
AddPair("f13", SDLK_F13);
AddPair("f14", SDLK_F14);
AddPair("f15", SDLK_F15);
// Key state modifier keys
//AddPair("numlock", SDLK_NUMLOCK);
//AddPair("capslock", SDLK_CAPSLOCK);
//AddPair("scrollock", SDLK_SCROLLOCK);
AddPair("shift", SDLK_LSHIFT);
AddPair("ctrl", SDLK_LCTRL);
AddPair("alt", SDLK_LALT);
AddPair("meta", SDLK_LGUI);
// these can not be used correctly anyway (without special support in other parts of Spring code...)
//AddPair("super", SDLK_LSUPER); // Left "Windows" key
//AddPair("mode", SDLK_MODE); // "Alt Gr" key
//AddPair("compose", SDLK_COMPOSE); // Multi-key compose key
// Miscellaneous function keys
AddPair("help", SDLK_HELP);
AddPair("printscreen", SDLK_PRINTSCREEN);
AddPair("print", SDLK_PRINTSCREEN);
//AddPair("sysreq", SDLK_SYSREQ);
//AddPair("break", SDLK_BREAK);
//AddPair("menu", SDLK_MENU);
//AddPair("power", SDLK_POWER); // Power Macintosh power key
//AddPair("euro", SDLK_EURO); // Some european keyboards
//AddPair("undo", SDLK_UNDO); // Atari keyboard has Undo
std::sort(nameToCode.begin(), nameToCode.end(), [](const NameCodePair& a, const NameCodePair& b) { return (a.first < b.first); });
std::sort(codeToName.begin(), codeToName.end(), [](const CodeNamePair& a, const CodeNamePair& b) { return (a.first < b.first); });
std::sort(printableCodes.begin(), printableCodes.end());
nameToCode.erase(std::unique(nameToCode.begin(), nameToCode.end(), [](const NameCodePair& a, const NameCodePair& b) { return (a.first == b.first); }), nameToCode.end());
codeToName.erase(std::unique(codeToName.begin(), codeToName.end(), [](const CodeNamePair& a, const CodeNamePair& b) { return (a.first == b.first); }), codeToName.end());
printableCodes.erase(std::unique(printableCodes.begin(), printableCodes.end()), printableCodes.end());
// remember our defaults
defaultNameToCode.clear();
defaultNameToCode.resize(nameToCode.size());
defaultCodeToName.clear();
defaultCodeToName.resize(codeToName.size());
std::copy(nameToCode.begin(), nameToCode.end(), defaultNameToCode.begin());
std::copy(codeToName.begin(), codeToName.end(), defaultCodeToName.begin());
}
void CKeyCodes::PrintNameToCode() const
{
for (const auto& p: nameToCode) {
LOG("KEYNAME: %13s = 0x%03X (SDL1 = 0x%03X)", p.first.c_str(), p.second, SDL21_keysyms(p.second));
}
}
void CKeyCodes::PrintCodeToName() const
{
for (const auto& p: codeToName) {
LOG("KEYCODE: 0x%03X = '%s' (SDL1 = 0x%03X)", p.first, p.second.c_str(), SDL21_keysyms(p.first));
}
}
void CKeyCodes::SaveUserKeySymbols(FILE* file) const
{
bool output = false;
for (const auto& p: nameToCode) {
const auto defSymPred = [](const NameCodePair& a, const NameCodePair& b) { return (a.first < b.first); };
const auto defSymIter = std::lower_bound(defaultNameToCode.begin(), defaultNameToCode.end(), NameCodePair{p.first, 0}, defSymPred);
if (defSymIter != defaultNameToCode.end() && defSymIter->first == p.first)
continue;
// this keysym is not standard
const std::string& extSymName = p.first;
const std::string& defSymName = GetDefaultName(p.second);
fprintf(file, "keysym %-10s %s\n", extSymName.c_str(), defSymName.c_str());
output = true;
}
if (!output)
return;
fprintf(file, "\n");
}
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