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events.cpp

/* 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: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-11-1/engines/lure/events.cpp $
 * $Id: events.cpp 30944 2008-02-23 22:50:18Z sev $
 *
 */


#include "common/events.h"

#include "graphics/cursorman.h"

#include "lure/events.h"
#include "lure/res.h"

namespace Lure {

static Mouse *int_mouse = NULL;

Mouse &Mouse::getReference() {
      return *int_mouse;
}

Mouse::Mouse() {
      int_mouse = this;

      _lButton = false;
      _rButton = false;
      _cursorNum = CURSOR_ARROW;
      _x = 0;
      _y = 0;
      setCursorNum(CURSOR_ARROW);
}

Mouse::~Mouse() {
}

void Mouse::handleEvent(Common::Event event) {
      _x = (int16) event.mouse.x;
      _y = (int16) event.mouse.y;

      switch (event.type) {
      case Common::EVENT_LBUTTONDOWN:
            _lButton = true;
            break;
      case Common::EVENT_LBUTTONUP:
            _lButton = false;
            break;
      case Common::EVENT_RBUTTONDOWN:
            _rButton = true;
            break;
      case Common::EVENT_RBUTTONUP:
            _rButton = false;
            break;
      default:
            break;
      }
}


void Mouse::cursorOn() {
      CursorMan.showMouse(true);
}

void Mouse::cursorOff() {
      CursorMan.showMouse(false);
}

void Mouse::setCursorNum(CursorType cursorNum) {
      int hotspotX = 7, hotspotY = 7;
      if ((cursorNum == CURSOR_ARROW) || (cursorNum == CURSOR_MENUBAR)) {
            hotspotX = 0;
            hotspotY = 0;
      }

      setCursorNum(cursorNum, hotspotX, hotspotY);
}

void Mouse::setCursorNum(CursorType cursorNum, int hotspotX, int hotspotY) {
      Resources &res = Resources::getReference();

      _cursorNum = cursorNum;
      byte *cursorAddr = res.getCursor(cursorNum);
      CursorMan.replaceCursor(cursorAddr, CURSOR_WIDTH, CURSOR_HEIGHT, hotspotX, hotspotY, 0);
}

void Mouse::pushCursorNum(CursorType cursorNum) {
      int hotspotX = 7, hotspotY = 7;
      if ((cursorNum == CURSOR_ARROW) || (cursorNum == CURSOR_MENUBAR)) {
            hotspotX = 0;
            hotspotY = 0;
      }

      pushCursorNum(cursorNum, hotspotX, hotspotY);
}

void Mouse::pushCursorNum(CursorType cursorNum, int hotspotX, int hotspotY) {
      Resources &res = Resources::getReference();

      _cursorNum = cursorNum;
      byte *cursorAddr = res.getCursor(cursorNum);
      CursorMan.pushCursor(cursorAddr, CURSOR_WIDTH, CURSOR_HEIGHT, hotspotX, hotspotY, 0);
}

void Mouse::popCursor() {
      CursorMan.popCursor();
}

void Mouse::setPosition(int newX, int newY) {
      g_system->warpMouse(newX, newY);
}

void Mouse::waitForRelease() {
      Events &e = Events::getReference();

      do {
            while (e.pollEvent() && !e.quitFlag) ;
            g_system->delayMillis(20);
      } while (!e.quitFlag && (lButton() || rButton()));
}

/*--------------------------------------------------------------------------*/

static Events *int_events = NULL;

Events::Events() {
      int_events = this;
      quitFlag = false;
}

Events &Events::getReference() {
      return *int_events;
}


bool Events::pollEvent() {
      if (!g_system->getEventManager()->pollEvent(_event)) return false;

      // Handle keypress
      switch (_event.type) {
      case Common::EVENT_QUIT:
            quitFlag = true;
            break;

      case Common::EVENT_LBUTTONDOWN:
      case Common::EVENT_LBUTTONUP:
      case Common::EVENT_RBUTTONDOWN:
      case Common::EVENT_RBUTTONUP:
      case Common::EVENT_MOUSEMOVE:
      case Common::EVENT_WHEELUP:
      case Common::EVENT_WHEELDOWN:
            Mouse::getReference().handleEvent(_event);
            break;

      default:
            break;
      }

      return true;
}

void Events::waitForPress() {
      bool keyButton = false;
      while (!keyButton) {
            while (pollEvent()) {
                  if (_event.type == Common::EVENT_QUIT) return;
                  else if (_event.type == Common::EVENT_KEYDOWN) keyButton = true;
                  else if ((_event.type == Common::EVENT_LBUTTONDOWN) ||
                        (_event.type == Common::EVENT_RBUTTONDOWN)) {
                        keyButton = true;
                        Mouse::getReference().waitForRelease();
                  }
            }
            g_system->delayMillis(20);
      }
}

// interruptableDelay
// Delays for a given number of milliseconds. If it returns true, it indicates that
// the Escape has been pressed to abort whatever sequence is being displayed

bool Events::interruptableDelay(uint32 milliseconds) {
      Events &events = Events::getReference();
      uint32 delayCtr = g_system->getMillis() + milliseconds;

      while (g_system->getMillis() < delayCtr) {
            if (events.quitFlag) return true;

            if (events.pollEvent()) {
                  if (((events.type() == Common::EVENT_KEYDOWN) && (events.event().kbd.ascii != 0)) ||
                        (events.type() == Common::EVENT_LBUTTONDOWN))
                        return true;
            }

            uint32 delayAmount = delayCtr - g_system->getMillis();
            if (delayAmount > 10) delayAmount = 10;
            g_system->delayMillis(delayAmount);
      }
      return false;
}

} // end of namespace Lure

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