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base_mouse.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-1-0-0rc1/backends/platform/PalmOS/Src/base_mouse.cpp $
 * $Id: base_mouse.cpp 30664 2008-01-27 19:47:41Z jvprat $
 *
 */

#include "be_base.h"

void OSystem_PalmBase::warpMouse(int x, int y) {
      if (x != _mouseCurState.x || y != _mouseCurState.y) {
            x = x >= _screenWidth  ? _screenWidth  - 1 : x;
            y = y >= _screenHeight ? _screenHeight - 1 : y;

            _mouseCurState.x = x;
            _mouseCurState.y = y;
      }
}

bool OSystem_PalmBase::showMouse(bool visible) {
      bool last = _mouseVisible;
      _mouseVisible = visible;

      return last;
}

void OSystem_PalmBase::setMouseCursor(const byte *buf, uint w, uint h, int hotspotX, int hotspotY, byte keycolor, int cursorTargetScale) {
      if (w == 0 || h == 0)
            return;

      _mouseHotspotX = hotspotX;
      _mouseHotspotY = hotspotY;

      _mouseKeyColor = keycolor;

      if (_mouseCurState.w != w || _mouseCurState.h != h) {
            _mouseCurState.w = w;
            _mouseCurState.h = h;

            if (_mouseDataP)
                  free(_mouseDataP);

            if (_mouseBackupP)
                  free(_mouseBackupP);

            _mouseDataP = (byte *)malloc(w * h);
            _mouseBackupP = (byte *)malloc(w * h * 2); // if 16bit = *2
      }

      if (!_mouseBackupP) {
            free(_mouseDataP);
            _mouseDataP = NULL;
      }

      if (_mouseDataP)
            memcpy(_mouseDataP, buf, w * h);
}

void OSystem_PalmBase::simulate_mouse(Common::Event &event, Int8 iHoriz, Int8 iVert, Coord *xr, Coord *yr) {
      Int16 x = _mouseCurState.x;
      Int16 y = _mouseCurState.y;
      Int16 slow, fact;

      _lastKeyRepeat++;
      fact = _screenWidth / 320;
      fact = (fact) ? fact : 1;

      if (_lastKeyRepeat > 32 * fact)
            _lastKeyRepeat = 32 * fact;

      slow = (iHoriz && iVert) ? 2 : 1;

      x += iHoriz * (_lastKeyRepeat >> 2) / slow * fact;
      y += iVert * (_lastKeyRepeat >> 2) / slow * fact;

      x = (x < 0                    ) ? 0                         : x;
      x = (x >= _screenWidth  ) ? _screenWidth - 1    : x;
      y = (y < 0                    ) ? 0                         : y;
      y = (y >= _screenHeight ) ? _screenHeight - 1   : y;

      *xr = x;
      *yr = y;
}

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