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