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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "backends/vkeybd/virtual-keyboard.h"
#include "backends/vkeybd/virtual-keyboard-gui.h"
#include "backends/vkeybd/virtual-keyboard-parser.h"
#include "graphics/imageman.h"
namespace Common {
VirtualKeyboard::VirtualKeyboard() : _currentMode(0) {
assert(g_system);
_system = g_system;
_parser = new VirtualKeyboardParser(this);
_kbdGUI = new VirtualKeyboardGUI(this);
_loaded = false;
}
VirtualKeyboard::~VirtualKeyboard() {
deleteEvents();
delete _kbdGUI;
delete _parser;
}
void VirtualKeyboard::deleteEvents() {
ModeMap::iterator it_m;
EventMap::iterator it_e;
for (it_m = _modes.begin(); it_m != _modes.end(); it_m++) {
EventMap *evt = &(it_m->_value.events);
for (it_e = evt->begin(); it_e != evt->end(); it_e++)
delete it_e->_value;
}
}
void VirtualKeyboard::reset() {
deleteEvents();
_modes.clear();
_initialMode = _currentMode = 0;
_hAlignment = kAlignCentre;
_vAlignment = kAlignBottom;
_keyQueue.clear();
_loaded = false;
_kbdGUI->reset();
}
bool VirtualKeyboard::loadKeyboardPack(Common::String packName) {
if (Common::File::exists(packName + ".xml")) {
// uncompressed keyboard pack
if (!_parser->loadFile(packName + ".xml"))
return false;
} else if (Common::File::exists(packName + ".zip")) {
// compressed keyboard pack
#ifdef USE_ZLIB
unzFile zipFile = unzOpen((packName + ".zip").c_str());
if (zipFile && unzLocateFile(zipFile, (packName + ".xml").c_str(), 2) == UNZ_OK) {
unz_file_info fileInfo;
unzOpenCurrentFile(zipFile);
unzGetCurrentFileInfo(zipFile, &fileInfo, NULL, 0, NULL, 0, NULL, 0);
byte *buffer = (byte *)malloc(fileInfo.uncompressed_size+1 * sizeof(byte));
assert(buffer);
memset(buffer, 0, (fileInfo.uncompressed_size+1)*sizeof(byte));
unzReadCurrentFile(zipFile, buffer, fileInfo.uncompressed_size);
unzCloseCurrentFile(zipFile);
if (!_parser->loadBuffer(buffer, fileInfo.uncompressed_size+1, true)) {
unzClose(zipFile);
return false;
}
} else {
warning("Could not find %s.xml file in %s.zip keyboard pack", packName.c_str(), packName.c_str());
unzClose(zipFile);
return false;
}
unzClose(zipFile);
ImageMan.addArchive(packName + ".zip");
#else
return false;
#endif
} else {
warning("Keyboard pack not found");
return false;
}
_parser->setParseMode(kParseFull);
_loaded = _parser->parse();
if (_loaded)
printf("Keyboard pack '%s' loaded successfully!\n", packName.c_str());
return _loaded;
}
bool VirtualKeyboard::checkModeResolutions()
{
_parser->setParseMode(kParseCheckResolutions);
_loaded = _parser->parse();
return _loaded;
}
Common::String VirtualKeyboard::findArea(int16 x, int16 y) {
return _currentMode->imageMap.findMapArea(x, y);
}
void VirtualKeyboard::processAreaClick(const Common::String& area) {
if (!_currentMode->events.contains(area)) return;
Event *evt = _currentMode->events[area];
switch (evt->type) {
case kEventKey: {
// add virtual keypress to queue
_keyQueue.insertKey(*(Common::KeyState*)evt->data);
break;
}
case kEventModifier:
_keyQueue.toggleFlags(*(byte*)(evt->data));
break;
case kEventSwitchMode:
// switch to new mode
switchMode(*(Common::String *)evt->data);
_keyQueue.clearFlags();
break;
case kEventClose:
// close virtual keyboard
_kbdGUI->hide();
break;
}
}
void VirtualKeyboard::switchMode(Mode *newMode) {
_kbdGUI->initMode(newMode);
_currentMode = newMode;
}
void VirtualKeyboard::switchMode(const Common::String& newMode) {
if (!_modes.contains(newMode)) {
warning("Keyboard mode '%s' unknown", newMode.c_str());
return;
}
switchMode(&_modes[newMode]);
}
void VirtualKeyboard::handleMouseDown(int16 x, int16 y) {
_areaDown = findArea(x, y);
if (_areaDown.empty())
_kbdGUI->startDrag(x, y);
}
void VirtualKeyboard::handleMouseUp(int16 x, int16 y) {
if (!_areaDown.empty() && _areaDown == findArea(x, y)) {
processAreaClick(_areaDown);
_areaDown.clear();
}
_kbdGUI->endDrag();
}
void VirtualKeyboard::show() {
if (!_loaded) {
// if not loaded then load default "vkeybd" pack
if (!loadKeyboardPack("vkeybd")) {
warning("Keyboard not loaded therefore can't be shown");
return;
}
}
switchMode(_initialMode);
_kbdGUI->run();
EventManager *eventMan = _system->getEventManager();
assert(eventMan);
// push keydown & keyup events into the event manager
Common::Event evt;
evt.synthetic = false;
while (!_keyQueue.empty()) {
evt.kbd = _keyQueue.pop();
evt.type = Common::EVENT_KEYDOWN;
eventMan->pushEvent(evt);
evt.type = Common::EVENT_KEYUP;
eventMan->pushEvent(evt);
}
}
void VirtualKeyboard::hide() {
_kbdGUI->hide();
}
bool VirtualKeyboard::isDisplaying() {
return _kbdGUI->isDisplaying();
}
VirtualKeyboard::KeyPressQueue::KeyPressQueue() {
_keyPos = _keys.end();
_strPos = 0;
}
void VirtualKeyboard::KeyPressQueue::toggleFlags(byte fl) {
_keyFlags ^= fl;
_strChanged = true;
}
void VirtualKeyboard::KeyPressQueue::clearFlags() {
_keyFlags = 0;
_strChanged = true;
}
void VirtualKeyboard::KeyPressQueue::insertKey(KeyState key) {
_strChanged = true;
switch (key.keycode) {
case KEYCODE_LEFT:
moveLeft();
return;
case KEYCODE_RIGHT:
moveRight();
return;
case KEYCODE_BACKSPACE:
deleteKey();
return;
default:
;
}
key.flags ^= _keyFlags;
if ((key.keycode >= Common::KEYCODE_a) && (key.keycode <= Common::KEYCODE_z))
key.ascii = (key.flags & Common::KBD_SHIFT) ? key.keycode - 32 : key.keycode;
clearFlags();
String keyStr;
if (key.keycode >= 32 && key.keycode <= 126) {
if (key.flags & KBD_CTRL)
keyStr += "Ctrl+";
if (key.flags & KBD_ALT)
keyStr += "Alt+";
if (key.flags & KBD_SHIFT && (key.ascii < 65 || key.ascii > 90))
keyStr += "Shift+";
keyStr += (char)key.ascii;
}
const char *k = keyStr.c_str();
while (char ch = *k++)
_str.insertChar(ch, _strPos++);
VirtualKeyPress kp;
kp.key = key;
kp.strLen = keyStr.size();
_keys.insert(_keyPos, kp);
}
void VirtualKeyboard::KeyPressQueue::deleteKey() {
if (_keyPos == _keys.begin())
return;
List<VirtualKeyPress>::iterator it = _keyPos;
it--;
_strPos -= it->strLen;
while((it->strLen)-- > 0)
_str.deleteChar(_strPos);
_keys.erase(it);
}
void VirtualKeyboard::KeyPressQueue::moveLeft() {
if (_keyPos == _keys.begin())
return;
_keyPos--;
_strPos -= _keyPos->strLen;
}
void VirtualKeyboard::KeyPressQueue::moveRight() {
if (_keyPos == _keys.end())
return;
_strPos += _keyPos->strLen;
_keyPos++;
}
KeyState VirtualKeyboard::KeyPressQueue::pop() {
bool front = (_keyPos == _keys.begin());
VirtualKeyPress kp = *(_keys.begin());
_keys.pop_front();
if (front)
_keyPos = _keys.begin();
else
_strPos -= kp.strLen;
while (kp.strLen-- > 0)
_str.deleteChar(0);
return kp.key;
}
void VirtualKeyboard::KeyPressQueue::clear() {
_keys.clear();
_keyPos = _keys.end();
_str.clear();
_strPos = 0;
_keyFlags = 0;
}
bool VirtualKeyboard::KeyPressQueue::empty()
{
return _keys.empty();
}
String VirtualKeyboard::KeyPressQueue::getString()
{
String flags;
if (_keyFlags & KBD_CTRL)
flags += "Ctrl+";
if (_keyFlags & KBD_ALT)
flags += "Alt+";
if (_keyFlags & KBD_SHIFT)
flags += "Shift+";
return _str + flags;
}
uint VirtualKeyboard::KeyPressQueue::getInsertIndex() {
return _strPos;
}
bool VirtualKeyboard::KeyPressQueue::hasStringChanged() {
bool ret = _strChanged;
_strChanged = false;
return ret;
}
} // end of namespace Common
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