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r17167:68f47a8db1b5
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(svn r21916) -Fix [FS#4442]: the minimum speed needed for (realistic) acceleration to work properly can sometimes be more than the (temporary) maximum speed causing Clamp to "fail". Make sure that the minimum speed always overrules the maximum speed
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/*
* 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;
/** 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},
{"PLUS", (WindowKeyCodes)'+'},
{"COMMA", (WindowKeyCodes)','},
{"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');
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;
while (true) {
const char *cur = start;
while (*cur != '+' && cur != end) cur++;
uint16 code = ParseCode(start, cur);
if (code == 0) return 0;
if (code & WKC_SPECIAL_KEYS) {
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
*/
template<class T>
static void ParseHotkeys(Hotkey<T> *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. Seperate 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.
*/
template<class T>
const char *SaveKeycodes(const Hotkey<T> *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;
}
template<class T>
void LoadHotkeyGroup(IniGroup *group, T *hotkey_list)
{
for (uint i = 0; hotkey_list[i].num != -1; i++) {
T *hotkey = &hotkey_list[i];
IniItem *item = group->GetItem(hotkey->name, false);
if (item != NULL) {
hotkey->keycodes.Clear();
if (item->value != NULL) ParseHotkeys(hotkey, item->value);
}
}
}
template<class T>
void SaveHotkeyGroup(IniGroup *group, T *hotkey_list)
{
for (uint i = 0; hotkey_list[i].num != -1; i++) {
T *hotkey = &hotkey_list[i];
IniItem *item = group->GetItem(hotkey->name, true);
item->SetValue(SaveKeycodes(hotkey));
}
}
template<class T>
void SaveLoadHotkeyGroup(IniGroup *group, T *hotkey_list, bool save)
{
if (save) {
SaveHotkeyGroup(group, hotkey_list);
} else {
LoadHotkeyGroup(group, hotkey_list);
}
}
struct MainWindow;
struct MainToolbarWindow;
struct ScenarioEditorToolbarWindow;
struct TerraformToolbarWindow;
struct ScenarioEditorLandscapeGenerationWindow;
struct OrdersWindow;
struct BuildAirToolbarWindow;
struct BuildDocksToolbarWindow;
struct BuildRailToolbarWindow;
struct BuildRoadToolbarWindow;
struct SignListWindow;
static void SaveLoadHotkeys(bool save)
{
IniFile *ini = new IniFile();
ini->LoadFromDisk(_hotkeys_file);
IniGroup *group;
#define SL_HOTKEYS(name, window_name) \
extern Hotkey<window_name> *_##name##_hotkeys;\
group = ini->GetGroup(#name);\
SaveLoadHotkeyGroup(group, _##name##_hotkeys, save);
SL_HOTKEYS(global, MainWindow);
SL_HOTKEYS(maintoolbar, MainToolbarWindow);
SL_HOTKEYS(scenedit_maintoolbar, ScenarioEditorToolbarWindow);
SL_HOTKEYS(terraform, TerraformToolbarWindow);
SL_HOTKEYS(terraform_editor, ScenarioEditorLandscapeGenerationWindow);
SL_HOTKEYS(order, OrdersWindow);
SL_HOTKEYS(airtoolbar, BuildAirToolbarWindow);
SL_HOTKEYS(dockstoolbar, BuildDocksToolbarWindow);
SL_HOTKEYS(railtoolbar, BuildRailToolbarWindow);
SL_HOTKEYS(roadtoolbar, BuildRoadToolbarWindow);
SL_HOTKEYS(signlist, SignListWindow);
#undef SL_HOTKEYS
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);
}
typedef EventState GlobalHotkeyHandler(uint16, uint16);
GlobalHotkeyHandler RailToolbarGlobalHotkeys;
GlobalHotkeyHandler DockToolbarGlobalHotkeys;
GlobalHotkeyHandler AirportToolbarGlobalHotkeys;
GlobalHotkeyHandler TerraformToolbarGlobalHotkeys;
GlobalHotkeyHandler TerraformToolbarEditorGlobalHotkeys;
GlobalHotkeyHandler RoadToolbarGlobalHotkeys;
GlobalHotkeyHandler RoadToolbarEditorGlobalHotkeys;
GlobalHotkeyHandler SignListGlobalHotkeys;
GlobalHotkeyHandler *_global_hotkey_handlers[] = {
RailToolbarGlobalHotkeys,
DockToolbarGlobalHotkeys,
AirportToolbarGlobalHotkeys,
TerraformToolbarGlobalHotkeys,
RoadToolbarGlobalHotkeys,
SignListGlobalHotkeys,
};
GlobalHotkeyHandler *_global_hotkey_handlers_editor[] = {
TerraformToolbarEditorGlobalHotkeys,
RoadToolbarEditorGlobalHotkeys,
};
void HandleGlobalHotkeys(uint16 key, uint16 keycode)
{
if (_game_mode == GM_NORMAL) {
for (uint i = 0; i < lengthof(_global_hotkey_handlers); i++) {
if (_global_hotkey_handlers[i](key, keycode) == ES_HANDLED) return;
}
} else if (_game_mode == GM_EDITOR) {
for (uint i = 0; i < lengthof(_global_hotkey_handlers_editor); i++) {
if (_global_hotkey_handlers_editor[i](key, keycode) == ES_HANDLED) return;
}
}
}
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