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r15402:ee58828e73ce r15402:ee58828e73ce r15402:ee58828e73ce r20631:946fb80e24ac r15417:284aa639f559 r20401:9fccb7c94c07 r20401:9fccb7c94c07 r20401:9fccb7c94c07 r20401:9fccb7c94c07 r20401:9fccb7c94c07 r15417:284aa639f559 r15417:284aa639f559 r15417:284aa639f559 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file hotkeys.cpp Implementation of hotkey related functions */
#include "stdafx.h"
#include "openttd.h"
#include "hotkeys.h"
#include "ini_type.h"
#include "string_func.h"
#include "window_gui.h"
char *_hotkeys_file;
/**
* List of all HotkeyLists.
* This is a pointer to ensure initialisation order with the various static HotkeyList instances.
*/
static SmallVector<HotkeyList*, 16> *_hotkey_lists = NULL;
/** String representation of a keycode */
struct KeycodeNames {
const char *name; ///< Name of the keycode
WindowKeyCodes keycode; ///< The keycode
};
/** Array of non-standard keycodes that can be used in the hotkeys config file. */
static const KeycodeNames _keycode_to_name[] = {
{"SHIFT", WKC_SHIFT},
{"CTRL", WKC_CTRL},
{"ALT", WKC_ALT},
{"META", WKC_META},
{"GLOBAL", WKC_GLOBAL_HOTKEY},
{"ESC", WKC_ESC},
{"DEL", WKC_DELETE},
{"RETURN", WKC_RETURN},
{"BACKQUOTE", WKC_BACKQUOTE},
{"F1", WKC_F1},
{"F2", WKC_F2},
{"F3", WKC_F3},
{"F4", WKC_F4},
{"F5", WKC_F5},
{"F6", WKC_F6},
{"F7", WKC_F7},
{"F8", WKC_F8},
{"F9", WKC_F9},
{"F10", WKC_F10},
{"F11", WKC_F11},
{"F12", WKC_F12},
{"PAUSE", WKC_PAUSE},
{"COMMA", WKC_COMMA},
{"NUM_PLUS", WKC_NUM_PLUS},
{"NUM_MINUS", WKC_NUM_MINUS},
{"=", WKC_EQUALS},
{"-", WKC_MINUS},
};
/**
* Try to parse a single part of a keycode.
* @param start Start of the string to parse.
* @param end End of the string to parse.
* @return A keycode if a match is found or 0.
*/
static uint16 ParseCode(const char *start, const char *end)
{
assert(start <= end);
while (start < end && *start == ' ') start++;
while (end > start && *end == ' ') end--;
for (uint i = 0; i < lengthof(_keycode_to_name); i++) {
if (strlen(_keycode_to_name[i].name) == (size_t)(end - start) && strncasecmp(start, _keycode_to_name[i].name, end - start) == 0) {
return _keycode_to_name[i].keycode;
}
}
if (end - start == 1) {
if (*start >= 'a' && *start <= 'z') return *start - ('a'-'A');
/* Ignore invalid keycodes */
if (*(const uint8 *)start < 128) return *start;
}
return 0;
}
/**
* Parse a string representation of a keycode.
* @param start Start of the input.
* @param end End of the input.
* @return A valid keycode or 0.
*/
static uint16 ParseKeycode(const char *start, const char *end)
{
assert(start <= end);
uint16 keycode = 0;
for (;;) {
const char *cur = start;
while (*cur != '+' && cur != end) cur++;
uint16 code = ParseCode(start, cur);
if (code == 0) return 0;
if (code & WKC_SPECIAL_KEYS) {
/* Some completely wrong keycode we don't support. */
if (code & ~WKC_SPECIAL_KEYS) return 0;
keycode |= code;
} else {
/* Ignore the code if it has more then 1 letter. */
if (keycode & ~WKC_SPECIAL_KEYS) return 0;
keycode |= code;
}
if (cur == end) break;
assert(cur < end);
start = cur + 1;
}
return keycode;
}
/**
* Parse a string to the keycodes it represents
* @param hotkey The hotkey object to add the keycodes to
* @param value The string to parse
*/
static void ParseHotkeys(Hotkey *hotkey, const char *value)
{
const char *start = value;
while (*start != '\0') {
const char *end = start;
while (*end != '\0' && *end != ',') end++;
uint16 keycode = ParseKeycode(start, end);
if (keycode != 0) hotkey->AddKeycode(keycode);
start = (*end == ',') ? end + 1: end;
}
}
/**
* Convert a hotkey to it's string representation so it can be written to the
* config file. Separate parts of the keycode (like "CTRL" and "F1" are split
* by a '+'.
* @param keycode The keycode to convert to a string.
* @return A string representation of this keycode.
* @note The return value is a static buffer, strdup the result before calling
* this function again.
*/
static const char *KeycodeToString(uint16 keycode)
{
static char buf[32];
buf[0] = '\0';
bool first = true;
if (keycode & WKC_GLOBAL_HOTKEY) {
strecat(buf, "GLOBAL", lastof(buf));
first = false;
}
if (keycode & WKC_SHIFT) {
if (!first) strecat(buf, "+", lastof(buf));
strecat(buf, "SHIFT", lastof(buf));
first = false;
}
if (keycode & WKC_CTRL) {
if (!first) strecat(buf, "+", lastof(buf));
strecat(buf, "CTRL", lastof(buf));
first = false;
}
if (keycode & WKC_ALT) {
if (!first) strecat(buf, "+", lastof(buf));
strecat(buf, "ALT", lastof(buf));
first = false;
}
if (keycode & WKC_META) {
if (!first) strecat(buf, "+", lastof(buf));
strecat(buf, "META", lastof(buf));
first = false;
}
if (!first) strecat(buf, "+", lastof(buf));
keycode = keycode & ~WKC_SPECIAL_KEYS;
for (uint i = 0; i < lengthof(_keycode_to_name); i++) {
if (_keycode_to_name[i].keycode == keycode) {
strecat(buf, _keycode_to_name[i].name, lastof(buf));
return buf;
}
}
assert(keycode < 128);
char key[2];
key[0] = keycode;
key[1] = '\0';
strecat(buf, key, lastof(buf));
return buf;
}
/**
* Convert all keycodes attached to a hotkey to a single string. If multiple
* keycodes are attached to the hotkey they are split by a comma.
* @param hotkey The keycodes of this hotkey need to be converted to a string.
* @return A string representation of all keycodes.
* @note The return value is a static buffer, strdup the result before calling
* this function again.
*/
const char *SaveKeycodes(const Hotkey *hotkey)
{
static char buf[128];
buf[0] = '\0';
for (uint i = 0; i < hotkey->keycodes.Length(); i++) {
const char *str = KeycodeToString(hotkey->keycodes[i]);
if (i > 0) strecat(buf, ",", lastof(buf));
strecat(buf, str, lastof(buf));
}
return buf;
}
/**
* Create a new Hotkey object with a single default keycode.
* @param default_keycode The default keycode for this hotkey.
* @param name The name of this hotkey.
* @param num Number of this hotkey, should be unique within the hotkey list.
*/
Hotkey::Hotkey(uint16 default_keycode, const char *name, int num) :
name(name),
num(num)
{
if (default_keycode != 0) this->AddKeycode(default_keycode);
}
/**
* Create a new Hotkey object with multiple default keycodes.
* @param default_keycodes An array of default keycodes terminated with 0.
* @param name The name of this hotkey.
* @param num Number of this hotkey, should be unique within the hotkey list.
*/
Hotkey::Hotkey(const uint16 *default_keycodes, const char *name, int num) :
name(name),
num(num)
{
const uint16 *keycode = default_keycodes;
while (*keycode != 0) {
this->AddKeycode(*keycode);
keycode++;
}
}
/**
* Add a keycode to this hotkey, from now that keycode will be matched
* in addition to any previously added keycodes.
* @param keycode The keycode to add.
*/
void Hotkey::AddKeycode(uint16 keycode)
{
this->keycodes.Include(keycode);
}
HotkeyList::HotkeyList(const char *ini_group, Hotkey *items, GlobalHotkeyHandlerFunc global_hotkey_handler) :
global_hotkey_handler(global_hotkey_handler), ini_group(ini_group), items(items)
{
if (_hotkey_lists == NULL) _hotkey_lists = new SmallVector<HotkeyList*, 16>();
*_hotkey_lists->Append() = this;
}
HotkeyList::~HotkeyList()
{
_hotkey_lists->Erase(_hotkey_lists->Find(this));
}
/**
* Load HotkeyList from IniFile.
* @param ini IniFile to load from.
*/
void HotkeyList::Load(IniFile *ini)
{
IniGroup *group = ini->GetGroup(this->ini_group);
for (Hotkey *hotkey = this->items; hotkey->name != NULL; ++hotkey) {
IniItem *item = group->GetItem(hotkey->name, false);
if (item != NULL) {
hotkey->keycodes.Clear();
if (item->value != NULL) ParseHotkeys(hotkey, item->value);
}
}
}
/**
* Save HotkeyList to IniFile.
* @param ini IniFile to save to.
*/
void HotkeyList::Save(IniFile *ini) const
{
IniGroup *group = ini->GetGroup(this->ini_group);
for (const Hotkey *hotkey = this->items; hotkey->name != NULL; ++hotkey) {
IniItem *item = group->GetItem(hotkey->name, true);
item->SetValue(SaveKeycodes(hotkey));
}
}
/**
* Check if a keycode is bound to something.
* @param keycode The keycode that was pressed
* @param global_only Limit the search to hotkeys defined as 'global'.
* @return The number of the matching hotkey or -1.
*/
int HotkeyList::CheckMatch(uint16 keycode, bool global_only) const
{
for (const Hotkey *list = this->items; list->name != NULL; ++list) {
if (list->keycodes.Contains(keycode | WKC_GLOBAL_HOTKEY) || (!global_only && list->keycodes.Contains(keycode))) {
return list->num;
}
}
return -1;
}
static void SaveLoadHotkeys(bool save)
{
IniFile *ini = new IniFile();
ini->LoadFromDisk(_hotkeys_file, BASE_DIR);
for (HotkeyList **list = _hotkey_lists->Begin(); list != _hotkey_lists->End(); ++list) {
if (save) {
(*list)->Save(ini);
} else {
(*list)->Load(ini);
}
}
if (save) ini->SaveToDisk(_hotkeys_file);
delete ini;
}
/** Load the hotkeys from the config file */
void LoadHotkeysFromConfig()
{
SaveLoadHotkeys(false);
}
/** Save the hotkeys to the config file */
void SaveHotkeysToConfig()
{
SaveLoadHotkeys(true);
}
void HandleGlobalHotkeys(WChar key, uint16 keycode)
{
for (HotkeyList **list = _hotkey_lists->Begin(); list != _hotkey_lists->End(); ++list) {
if ((*list)->global_hotkey_handler == NULL) continue;
int hotkey = (*list)->CheckMatch(keycode, true);
if (hotkey >= 0 && ((*list)->global_hotkey_handler(hotkey) == ES_HANDLED)) return;
}
}
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