obligaron
4 years ago
committed by
Anders Jenbo
10 changed files with 323 additions and 303 deletions
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#include "keymapper.hpp" |
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#include <cassert> |
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#include <fmt/format.h> |
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#include <utility> |
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#include <SDL.h> |
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#ifdef USE_SDL1 |
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#include "utils/sdl2_to_1_2_backports.h" |
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#endif |
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#include "control.h" |
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#include "options.h" |
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#include "utils/log.hpp" |
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namespace devilution { |
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Keymapper::Keymapper() |
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{ |
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// Insert all supported keys: a-z, 0-9 and F1-F12.
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keyIDToKeyName.reserve(('Z' - 'A' + 1) + ('9' - '0' + 1) + 12); |
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for (char c = 'A'; c <= 'Z'; ++c) { |
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keyIDToKeyName.emplace(c, std::string(1, c)); |
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} |
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for (char c = '0'; c <= '9'; ++c) { |
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keyIDToKeyName.emplace(c, std::string(1, c)); |
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} |
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for (int i = 0; i < 12; ++i) { |
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keyIDToKeyName.emplace(DVL_VK_F1 + i, fmt::format("F{}", i + 1)); |
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} |
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keyNameToKeyID.reserve(keyIDToKeyName.size()); |
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for (const auto &kv : keyIDToKeyName) { |
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keyNameToKeyID.emplace(kv.second, kv.first); |
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} |
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} |
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Keymapper::ActionIndex Keymapper::AddAction(const Action &action) |
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{ |
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actions.emplace_back(action); |
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return actions.size() - 1; |
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} |
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void Keymapper::KeyPressed(int key) const |
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{ |
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auto it = keyIDToAction.find(key); |
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if (it == keyIDToAction.end()) |
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return; // Ignore unmapped keys.
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const auto &action = it->second; |
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// Check that the action can be triggered and that the chat textbox is not
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// open.
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if (!action.get().enable() || talkflag) |
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return; |
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action(); |
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} |
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std::string Keymapper::KeyNameForAction(ActionIndex actionIndex) const |
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{ |
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assert(actionIndex < actions.size()); |
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auto key = actions[actionIndex].key; |
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auto it = keyIDToKeyName.find(key); |
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assert(it != keyIDToKeyName.end()); |
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return it->second; |
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} |
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void Keymapper::Save() const |
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{ |
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// Use the action vector to go though the actions to keep the same order.
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for (const auto &action : actions) { |
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if (action.key == DVL_VK_INVALID) { |
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// Just add an empty config entry if the action is unbound.
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SetIniValue("Keymapping", action.name.c_str(), ""); |
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continue; |
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} |
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auto keyNameIt = keyIDToKeyName.find(action.key); |
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if (keyNameIt == keyIDToKeyName.end()) { |
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Log("Keymapper: no name found for key '{}'", action.key); |
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continue; |
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} |
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SetIniValue("Keymapping", action.name.c_str(), keyNameIt->second.c_str()); |
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} |
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} |
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void Keymapper::Load() |
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{ |
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keyIDToAction.clear(); |
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for (auto &action : actions) { |
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auto key = GetActionKey(action); |
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action.key = key; |
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if (key == DVL_VK_INVALID) { |
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// Skip if the action has no key bound to it.
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continue; |
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} |
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// Store the key in action.key and in the map so we can save() the
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// actions while keeping the same order as they have been added.
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keyIDToAction.emplace(key, action); |
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} |
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} |
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int Keymapper::GetActionKey(const Keymapper::Action &action) |
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{ |
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std::array<char, 64> result; |
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if (!GetIniValue("Keymapping", action.name.c_str(), result.data(), result.size())) |
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return action.defaultKey; // Return the default key if no key has been set.
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std::string key = result.data(); |
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if (key.empty()) |
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return DVL_VK_INVALID; |
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auto keyIt = keyNameToKeyID.find(key); |
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if (keyIt == keyNameToKeyID.end()) { |
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// Return the default key if the key is unknown.
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Log("Keymapper: unknown key '{}'", key); |
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return action.defaultKey; |
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} |
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auto it = keyIDToAction.find(keyIt->second); |
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if (it != keyIDToAction.end()) { |
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// Warn about overwriting keys.
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Log("Keymapper: key '{}' is already bound to action '{}', overwriting", key, it->second.get().name); |
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} |
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return keyIt->second; |
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} |
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} // namespace devilution
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@ -1,69 +0,0 @@ |
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#pragma once |
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#include <cstddef> |
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#include <functional> |
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#include <string> |
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#include <unordered_map> |
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#include <vector> |
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namespace devilution { |
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/** The Keymapper maps keys to actions. */ |
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class Keymapper final { |
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public: |
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using ActionIndex = std::size_t; |
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/**
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* Action represents an action that can be triggered using a keyboard |
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* shortcut. |
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*/ |
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class Action final { |
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public: |
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Action(const std::string &name, int defaultKey, std::function<void()> action) |
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: name(name) |
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, defaultKey(defaultKey) |
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, action(action) |
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, enable([] { return true; }) |
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{ |
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} |
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Action(const std::string &name, int defaultKey, std::function<void()> action, std::function<bool()> enable) |
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: name(name) |
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, defaultKey(defaultKey) |
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, action(action) |
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, enable(enable) |
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{ |
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} |
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void operator()() const |
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{ |
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action(); |
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} |
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private: |
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std::string name; |
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int defaultKey; |
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std::function<void()> action; |
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std::function<bool()> enable; |
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int key {}; |
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friend class Keymapper; |
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}; |
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Keymapper(); |
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ActionIndex AddAction(const Action &action); |
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void KeyPressed(int key) const; |
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std::string KeyNameForAction(ActionIndex actionIndex) const; |
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void Save() const; |
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void Load(); |
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private: |
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int GetActionKey(const Action &action); |
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std::vector<Action> actions; |
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std::unordered_map<int, std::reference_wrapper<Action>> keyIDToAction; |
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std::unordered_map<int, std::string> keyIDToKeyName; |
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std::unordered_map<std::string, int> keyNameToKeyID; |
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}; |
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} // namespace devilution
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