-/*
- * mouse.h
- *
- * Ullrich von Bassewitz, 24.04.1999
- */
+/*****************************************************************************/
+/* */
+/* mouse.h */
+/* */
+/* Mouse API */
+/* */
+/* */
+/* */
+/* (C) 2003 Ullrich von Bassewitz */
+/* Römerstraße 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* */
+/* */
+/* 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. */
+/* */
+/*****************************************************************************/
-/* Define __MOUSE__ for systems that support a proportional mouse */
-#ifdef __C64__
-# define __MOUSE__
-#endif
-#ifdef __C128__
-# define __MOUSE__
-#endif
+/*****************************************************************************/
+/* Definitions */
+/*****************************************************************************/
-void __fastcall__ mouse_init (unsigned char port, unsigned char sprite);
-/* Setup the mouse interrupt handler. If the sprite value is != zero, the
- * mouse routines will manage the sprite with this number. That means, it
- * is moved if the mouse is moved (provided that the mouse cursor is visible),
- * and switch on and off in the show and hide functions.
- * The port parameter gives the joystick port used for the mouse and is only
- * needed to read the mouse button state.
- * 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.
- */
+/* Error codes */
+#define MOUSE_ERR_OK 0 /* No error */
+#define MOUSE_ERR_NO_DRIVER 1 /* No driver available */
+#define MOUSE_ERR_CANNOT_LOAD 2 /* Error loading driver */
+#define MOUSE_ERR_INV_DRIVER 3 /* Invalid driver */
+#define MOUSE_ERR_NO_DEVICE 4 /* Mouse hardware not found */
+
+/* Mouse button masks */
+#define MOUSE_BTN_LEFT 0x10
+#define MOUSE_BTN_RIGHT 0x01
-void 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.
+/* 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 */
+};
+
+/* Structure containing mouse callback functions. These functions are declared
+ * in C notation here, but they cannot be C functions (at least not easily),
+ * since they may be called from within an interrupt.
*/
+struct mouse_callbacks {
+
+ void (*hide) (void);
+ /* Hide the mouse cursor. */
+
+ void (*show) (void);
+ /* Show the mouse cursor */
+
+ void (*move) (void);
+ /* Move the mouse cursor. This function is called, even when the cursor
+ * is currently invisible.
+ */
+};
+
-void 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
+
+/*****************************************************************************/
+/* Functions */
+/*****************************************************************************/
+
+
+
+unsigned char __fastcall__ mouse_set_callbacks (const struct mouse_callbacks* c);
+/* Sets the callbacks to be used by the driver. */
+
+unsigned char __fastcall__ mouse_load_driver (const char* driver);
+/* Load and install a mouse driver, return an error code. */
+
+unsigned char __fastcall__ mouse_unload (void);
+/* Uninstall, then unload the currently loaded driver. */
+
+unsigned char __fastcall__ mouse_install (void* driver);
+/* Install an already loaded driver. Returns an error code. */
+
+unsigned char __fastcall__ mouse_uninstall (void);
+/* Uninstall the currently loaded driver. Returns an error code. */
+
+void __fastcall__ mouse_hide (void);
+/* Hide the mouse. 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 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_show (void);
+/* Show the mouse. 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
* inside the bounding box.
*/
-void mouse_info (void);
-/* Hmmm...
+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 */
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