view src/video/picogui/SDL_pgevents.c @ 1584:b786d9c15e42

Fixed bug #61 Date: Mon, 24 Feb 2003 13:35:11 +0800 From: "Leonidas" Subject: [SDL] Re: Trigger mouse wheel event -- not in X-environment I have looked into the codes for the IMPS/2 mouse wheel mode of fbcon driver. But I found something weird. Here's the original codes to set a mouse device into IMPS/2 mode in libSDL. In the file src/video/fbcon/SDL_fbevents.c In function static int set_imps2_mode(int fd) ... Uint8 set_imps2[] = {0xf3, 200, 0xf3, 100, 0xf3, 80}; Uint8 reset = 0xff; fd_set fdset; struct timeval tv; int retval = 0; // Set mouse device fd into IMPS/2 mode if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) { // ??? then RESET it..??? if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) { retval = 1; } } ........... Since it sets IMPS/2 mode then reset it, so you will never get a mouse into IMPS/2 mode to use its wheel. What I did to make the wheel usable is remove the RESET codes. .... if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) { /* if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) { } */ retval = 1; } .... And in FB_OpenMouse(_THIS) Make the device /dev/psaux to be setted into imps2 mode such that it can be detected its a imps/2 mouse or not. (my mouse device is on ps2, but the codes only set /dev/input/mice device originally) Then I have done, I can use the mouse wheel when SDL uses frame buff driver. I dont exactly know I did right or wrong, I just change it for my usuage. Correct me please, if I did something wrong. Best regards, Li Tsung Lin IAP Product Dept. Engineer EeRise Corp. (Image Processing System, Computer Vision System) Hsin Tien, Taipei Hsien, Taiwan, R.O.C.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 22 Mar 2006 07:22:40 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org

    Micah Dowty
    micahjd@users.sourceforge.net
*/
#include "SDL_config.h"

#include "SDL.h"
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
#include "SDL_pgvideo.h"
#include "SDL_pgevents_c.h"

int PG_HandleClose(struct pgEvent *evt)
{
        SDL_PrivateQuit();
	return 1;               /* Intercept the event's normal quit handling */
}

int PG_HandleResize(struct pgEvent *evt)
{
        SDL_PrivateResize(evt->e.size.w, evt->e.size.h);
	return 0;
}

int PG_HandleKey(struct pgEvent *evt)
{
        SDL_keysym sym;
	SDL_memset(&sym,0,sizeof(sym));
	sym.sym = evt->e.kbd.key;
	sym.mod = evt->e.kbd.mods;
        SDL_PrivateKeyboard(evt->type == PG_WE_KBD_KEYDOWN, &sym);
	return 0;
}

int PG_HandleChar(struct pgEvent *evt)
{
        SDL_keysym sym;
	SDL_memset(&sym,0,sizeof(sym));
	sym.unicode = evt->e.kbd.key;
	sym.mod = evt->e.kbd.mods;
        SDL_PrivateKeyboard(evt->type == PG_WE_KBD_KEYDOWN, &sym);
	return 0;
}

int PG_HandleMouseButton(struct pgEvent *evt)
{        
        /* We need to focus the canvas when it's clicked */
        if (evt->extra) {
	        SDL_VideoDevice *this = (SDL_VideoDevice *) evt->extra;
		pgFocus(this->hidden->wCanvas);
	}
        SDL_PrivateMouseButton(evt->type == PG_WE_PNTR_DOWN, evt->e.pntr.chbtn,
			       evt->e.pntr.x, evt->e.pntr.y);
	return 0;
}

int PG_HandleMouseMotion(struct pgEvent *evt)
{
        SDL_PrivateMouseMotion(evt->e.pntr.btn,0,evt->e.pntr.x, evt->e.pntr.y);
	return 0;
}

void PG_PumpEvents(_THIS)
{
        /* Process all pending events */
        pgEventPoll();
}

void PG_InitOSKeymap(_THIS)
{
        /* We need no keymap */
}

void PG_InitEvents(_THIS)
{
        /* Turn on all the mouse and keyboard triggers for our canvas, normally less important
	 * events like mouse movement are ignored to save bandwidth. */
        pgSetWidget(this->hidden->wCanvas, PG_WP_TRIGGERMASK, 
		    pgGetWidget(this->hidden->wCanvas, PG_WP_TRIGGERMASK) |
		    PG_TRIGGER_UP | PG_TRIGGER_DOWN | PG_TRIGGER_MOVE |
		    PG_TRIGGER_KEYUP | PG_TRIGGER_KEYDOWN | PG_TRIGGER_CHAR,0);

	/* Start our canvas out focused, so we get keyboard input */
	pgFocus(this->hidden->wCanvas);

        /* Set up bindings for all the above event handlers */
        pgBind(this->hidden->wApp,    PG_WE_CLOSE, &PG_HandleClose, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_BUILD, &PG_HandleResize, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_KBD_CHAR, &PG_HandleChar, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_KBD_KEYUP, &PG_HandleKey, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_KBD_KEYDOWN, &PG_HandleKey, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_PNTR_MOVE, &PG_HandleMouseMotion, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_PNTR_UP, &PG_HandleMouseButton, NULL);
        pgBind(this->hidden->wCanvas, PG_WE_PNTR_DOWN, &PG_HandleMouseButton, this);
}

/* end of SDL_pgevents.c ... */