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mirror of https://github.com/cc65/cc65.git synced 2024-10-31 20:06:11 +00:00
cc65/include/mouse.h
izydorst 81407526bf enabled mouse support for GEOS
git-svn-id: svn://svn.cc65.org/cc65/trunk@1173 b7a2c559-68d2-44c3-8de9-860c34a00d81
2002-03-08 16:42:16 +00:00

167 lines
6.9 KiB
C

/*****************************************************************************/
/* */
/* mouse.h */
/* */
/* Mouse API */
/* */
/* */
/* */
/* (C) 1999-2001 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef _MOUSE_H
#define _MOUSE_H
/* Define __MOUSE__ for systems that support a mouse */
#if defined(__ATARI__) || defined(__C64__) || defined(__C128__) || defined(__CBM510__) || defined(__GEOS__)
# define __MOUSE__
#else
# error The target system does not support a mouse!
# endif
/*****************************************************************************/
/* Definitions */
/*****************************************************************************/
/* The different mouse types */
#define MOUSE_TRAKBALL 0
#define MOUSE_ST 1
#define MOUSE_AMIGA 2
#define MOUSE_CBM1351 3 /* 1351 mouse */
/* Mouse button masks */
#define MOUSE_BTN_LEFT 0x10
#define MOUSE_BTN_RIGHT 0x01
/* Structure containing the mouse coordinates */
struct mouse_pos {
int x;
int y;
};
/* Structure containing information about the mouse */
struct mouse_info {
struct mouse_pos pos; /* Mouse position */
unsigned char buttons; /* Mouse button mask */
};
/*****************************************************************************/
/* Functions */
/*****************************************************************************/
unsigned char __fastcall__ mouse_init (unsigned char type);
/* Setup the mouse interrupt handler. The mouse routines will use a predefined
* system resource for the mouse port and mouse cursor:
* C64: Port #0, Sprite #0
* C128: Port #0, Sprite #0
* GEOS: System defined port, Sprite #0
* Atari: Port #0, PM #0
* However, the mouse routines will not initialize this cursor or set a
* specific shape - this is platform dependent and up to the user program.
* The mouse cursor is moved if the mouse is moved (provided that the mouse
* cursor is visible), and switched on and off in the show and hide functions.
* The type parameter is needed on some systems to determine the type of
* the mouse connected to the given port, on others it is ignored.
* After calling this function, the mouse is invisble, the cursor is placed
* at 0/0 (upper left corner), and the bounding box is reset to cover the
* whole screen. Call mouse_show once to make the mouse cursor visible.
* The function will return zero if a mouse was not found and a non zero
* value if the mouse was found and initialized (or if there is no way to
* detect a mouse reliably).
*/
void __fastcall__ mouse_done (void);
/* Disable the mouse, remove the interrupt handler. This function MUST be
* called before terminating the program, otherwise odd things may happen.
* If in doubt, install an exit handler (using atexit) that calls this
* function.
*/
void __fastcall__ mouse_hide (void);
/* Hide the mouse. This function doesn't do anything visible if no sprite is
* used. The function manages a counter and may be called more than once.
* For each call to mouse_hide there must be a call to mouse_show to make
* the mouse visible again.
*/
void __fastcall__ mouse_show (void);
/* Show the mouse. This function doesn't do anything visible if no sprite is
* used. See mouse_hide for more information.
*/
void __fastcall__ mouse_box (int minx, int miny, int maxx, int maxy);
/* Set the bounding box for the mouse pointer movement. The mouse X and Y
* coordinates will never go outside the given box.
* NOTE: The function does *not* check if the mouse is currently inside the
* given margins. The proper way to use this function therefore is:
*
* - Hide the mouse
* - Set the bounding box
* - Place the mouse at the desired position
* - Show the mouse again.
*
* NOTE2: When setting the box to something that is larger than the actual
* screen, the positioning of the mouse cursor will fail. If such margins
* are really what you want, you have to use your own cursor routines.
*/
void __fastcall__ mouse_move (int x, int y);
/* Set the mouse cursor to the given position. If a mouse cursor is defined
* and currently visible, the mouse cursor is also moved.
* NOTE: This function does not check if the given position is valid and
* inside the bounding box.
*/
unsigned char __fastcall__ mouse_buttons (void);
/* Return a bit mask encoding the states of the mouse buttons. Use the
* MOUSE_BTN_XXX flags to decode a specific button.
*/
void __fastcall__ mouse_pos (struct mouse_pos* pos);
/* Return the current mouse position */
void __fastcall__ mouse_info (struct mouse_info* info);
/* Return the state of the mouse buttons and the position of the mouse */
/* End of mouse.h */
#endif