scummvm/engines/zvision/cursor_manager.h
2013-08-14 12:04:13 -05:00

115 lines
3.8 KiB
C++

/* 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.
*
*/
#ifndef ZVISION_CURSOR_MANAGER_H
#define ZVISION_CURSOR_MANAGER_H
#include "common/types.h"
#include "zvision/cursor.h"
namespace Graphics {
struct PixelFormat;
}
namespace ZVision {
class ZVision;
/**
* Class to manage cursor changes. The actual changes have to be done
* through CursorMan. Otherwise the cursor will disappear after GMM
* or debug console.
* TODO: Figure out a way to get rid of the extraneous data copying due to having to use CursorMan
*/
class CursorManager {
public:
CursorManager(ZVision *engine, const Graphics::PixelFormat *pixelFormat);
private:
enum {
NUM_CURSORS = 18,
// WARNING: The index 11 is hardcoded. If you change the order of _cursorNames/_zgiCursorFileNames/_zNemCursorFileNames, you HAVE to change the index accordingly
IDLE_CURSOR_INDEX = 11
};
ZVision *_engine;
const Graphics::PixelFormat *_pixelFormat;
ZorkCursor _idleCursor;
Common::String _currentCursor;
bool _cursorIsPushed;
static const char *_cursorNames[];
static const char *_zgiCursorFileNames[];
static const char *_zNemCursorFileNames[];
public:
/** Creates the idle cursor and shows it */
void initialize();
/**
* Parses a cursor name into a cursor file then creates and shows that cursor.
* It will use the current _isCursorPushed state to choose the correct cursor
*
* @param cursorName The name of a cursor. This *HAS* to correspond to one of the entries in _cursorNames[]
*/
void changeCursor(const Common::String &cursorName);
/**
* Parses a cursor name into a cursor file then creates and shows that cursor.
*
* @param cursorName The name of a cursor. This *HAS* to correspond to one of the entries in _cursorNames[]
* @param pushed Should the cursor be pushed (true) or not pushed (false) (Another way to say it: down or up)
*/
void changeCursor(const Common::String &cursorName, bool pushed);
/**
* Change the cursor to a certain push state. If the cursor is already in the specified push state, nothing will happen.
*
* @param pushed Should the cursor be pushed (true) or not pushed (false) (Another way to say it: down or up)
*/
void cursorDown(bool pushed);
/** Set the cursor to 'Left Arrow'. It will retain the current _isCursorPushed state */
void setLeftCursor();
/** Set the cursor to 'Right Arrow'. It will retain the current _isCursorPushed state */
void setRightCursor();
/** Set the cursor to 'Up Arrow'. It will retain the current _isCursorPushed state */
void setUpCursor();
/** Set the cursor to 'Down Arrow'. It will retain the current _isCursorPushed state */
void setDownCursor();
/** Set the cursor to 'Idle'. It will retain the current _isCursorPushed state */
void revertToIdle();
private:
/**
* Calls CursorMan.replaceCursor() using the data in cursor
*
* @param cursor The cursor to show
*/
void changeCursor(const ZorkCursor &cursor);
};
} // End of namespace ZVision
#endif