pcsx2/plugins/zeropad/Linux/linux.cpp

/*  ZeroPAD - author: zerofrog(@gmail.com)
 *  Copyright (C) 2006-2007
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <string.h>
#include <gtk/gtk.h>
#include <pthread.h>

#define JOYSTICK_SUPPORT
#ifdef JOYSTICK_SUPPORT
#include <SDL/SDL.h>
#endif

#include "zeropad.h"

extern "C"
{
#include "interface.h"
#include "support.h"
#include "callbacks.h"
}

Display *GSdsp;
static pthread_spinlock_t s_mutexStatus;
static u32 s_keyPress[2], s_keyRelease[2]; // thread safe
static u32 s_bSDLInit = false;

// holds all joystick info
class JoystickInfo
{
	public:
		JoystickInfo();
		~JoystickInfo()
		{
			Destroy();
		}

		void Destroy();
		// opens handles to all possible joysticks
		static void EnumerateJoysticks(vector<JoystickInfo*>& vjoysticks);

		bool Init(int id, bool bStartThread = true); // opens a handle and gets information
		void Assign(int pad); // assigns a joystick to a pad

		void TestForce();

		const string& GetName()
		{
			return devname;
		}
		int GetNumButtons()
		{
			return numbuttons;
		}
		int GetNumAxes()
		{
			return numaxes;
		}
		int GetNumPOV()
		{
			return numpov;
		}
		int GetId()
		{
			return _id;
		}
		int GetPAD()
		{
			return pad;
		}
		int GetDeadzone(int axis)
		{
			return deadzone;
		}

		void SaveState();
		int GetButtonState(int i)
		{
			return vbutstate[i];
		}
		int GetAxisState(int i)
		{
			return vaxisstate[i];
		}
		void SetButtonState(int i, int state)
		{
			vbutstate[i] = state;
		}
		void SetAxisState(int i, int value)
		{
			vaxisstate[i] = value;
		}
#ifdef JOYSTICK_SUPPORT
		SDL_Joystick* GetJoy()
		{
			return joy;
		}
#endif

	private:

		string devname; // pretty device name
		int _id;
		int numbuttons, numaxes, numpov;
		int axisrange, deadzone;
		int pad;

		vector<int> vbutstate, vaxisstate;

#ifdef JOYSTICK_SUPPORT
		SDL_Joystick* joy;
#endif
};

static vector<JoystickInfo*> s_vjoysticks;

extern string s_strIniPath;

void SaveConfig()
{
	int i, j;
	FILE *f;
	char cfg[255];

	strcpy(cfg, s_strIniPath.c_str());
	f = fopen(cfg, "w");
	if (f == NULL)
	{
		printf("ZeroPAD: failed to save ini %s\n", s_strIniPath.c_str());
		return;
	}

	for (j = 0; j < 2 * PADSUBKEYS; j++)
	{
		for (i = 0; i < PADKEYS; i++)
		{
			fprintf(f, "[%d][%d] = 0x%lx\n", j, i, conf.keys[j][i]);
		}
	}
	fprintf(f, "log = %d\n", conf.log);
	fprintf(f, "options = %d\n", conf.options);
	fclose(f);
}

static char* s_pGuiKeyMap[] = 
{ 
	"L2", "R2", "L1", "R1",
	"Triangle", "Circle", "Cross", "Square",
	"Select", "L3", "R3", "Start",
	"Up", "Right", "Down", "Left",
	"Lx", "Rx", "Ly", "Ry"
};

string GetLabelFromButton(const char* buttonname)
{
	string label = "e";
	label += buttonname;
	return label;
}

void LoadConfig()
{
	FILE *f;
	char str[256];
	char cfg[255];
	int i, j;

	memset(&conf, 0, sizeof(conf));
	conf.keys[0][0] = XK_a;			// L2
	conf.keys[0][1] = XK_semicolon;	// R2
	conf.keys[0][2] = XK_w;			// L1
	conf.keys[0][3] = XK_p;			// R1
	conf.keys[0][4] = XK_i;			// TRIANGLE
	conf.keys[0][5] = XK_l;			// CIRCLE
	conf.keys[0][6] = XK_k;			// CROSS
	conf.keys[0][7] = XK_j;			// SQUARE
	conf.keys[0][8] = XK_v;			// SELECT
	conf.keys[0][11] = XK_n; 			// START
	conf.keys[0][12] = XK_e;			// UP
	conf.keys[0][13] = XK_f;			// RIGHT
	conf.keys[0][14] = XK_d;			// DOWN
	conf.keys[0][15] = XK_s;			// LEFT
	conf.log = 0;

	strcpy(cfg, s_strIniPath.c_str());
	f = fopen(cfg, "r");
	if (f == NULL)
	{
		printf("ZeroPAD: failed to load ini %s\n", s_strIniPath.c_str());
		SaveConfig(); //save and return
		return;
	}

	for (j = 0; j < 2 * PADSUBKEYS; j++)
	{
		for (i = 0; i < PADKEYS; i++)
		{
			sprintf(str, "[%d][%d] = 0x%%x\n", j, i);
			if (fscanf(f, str, &conf.keys[j][i]) == 0) conf.keys[j][i] = 0;
		}
	}
	fscanf(f, "log = %d\n", &conf.log);
	fscanf(f, "options = %d\n", &conf.options);
	fclose(f);
}

GtkWidget *MsgDlg;

void OnMsg_Ok()
{
	gtk_widget_destroy(MsgDlg);
	gtk_main_quit();
}

void SysMessage(char *fmt, ...)
{
	GtkWidget *Ok, *Txt;
	GtkWidget *Box, *Box1;
	va_list list;
	char msg[512];

	va_start(list, fmt);
	vsprintf(msg, fmt, list);
	va_end(list);

	if (msg[strlen(msg)-1] == '\n') msg[strlen(msg)-1] = 0;

	MsgDlg = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_window_set_position(GTK_WINDOW(MsgDlg), GTK_WIN_POS_CENTER);
	gtk_window_set_title(GTK_WINDOW(MsgDlg), "GSsoft Msg");
	gtk_container_set_border_width(GTK_CONTAINER(MsgDlg), 5);

	Box = gtk_vbox_new(5, 0);
	gtk_container_add(GTK_CONTAINER(MsgDlg), Box);
	gtk_widget_show(Box);

	Txt = gtk_label_new(msg);

	gtk_box_pack_start(GTK_BOX(Box), Txt, FALSE, FALSE, 5);
	gtk_widget_show(Txt);

	Box1 = gtk_hbutton_box_new();
	gtk_box_pack_start(GTK_BOX(Box), Box1, FALSE, FALSE, 0);
	gtk_widget_show(Box1);

	Ok = gtk_button_new_with_label("Ok");
	gtk_signal_connect(GTK_OBJECT(Ok), "clicked", GTK_SIGNAL_FUNC(OnMsg_Ok), NULL);
	gtk_container_add(GTK_CONTAINER(Box1), Ok);
	GTK_WIDGET_SET_FLAGS(Ok, GTK_CAN_DEFAULT);
	gtk_widget_show(Ok);

	gtk_widget_show(MsgDlg);

	gtk_main();
}

s32  _PADopen(void *pDsp)
{
	GSdsp = *(Display**)pDsp;
	pthread_spin_init(&s_mutexStatus, PTHREAD_PROCESS_PRIVATE);
	s_keyPress[0] = s_keyPress[1] = 0;
	s_keyRelease[0] = s_keyRelease[1] = 0;
	XAutoRepeatOff(GSdsp);

	JoystickInfo::EnumerateJoysticks(s_vjoysticks);

	return 0;
}

void _PADclose()
{
	pthread_spin_destroy(&s_mutexStatus);
	XAutoRepeatOn(GSdsp);

	vector<JoystickInfo*>::iterator it;
	FORIT(it, s_vjoysticks) delete *it;
	s_vjoysticks.clear();
}

void _PADupdate(int pad)
{
	pthread_spin_lock(&s_mutexStatus);
	status[pad] |= s_keyRelease[pad];
	status[pad] &= ~s_keyPress[pad];
	s_keyRelease[pad] = 0;
	s_keyPress[pad] = 0;
	pthread_spin_unlock(&s_mutexStatus);
}

int _GetJoystickIdFromPAD(int pad)
{
	// select the right joystick id
	int joyid = -1;
	
	for (int p = 0; p < PADSUBKEYS; p++)
	{
		for (int i = 0; i < PADKEYS; ++i)
		{
			if (IS_JOYSTICK(conf.keys[(PadEnum[pad][p])][i]) || IS_JOYBUTTONS(conf.keys[(PadEnum[pad][p])][i]))
			{
				joyid = PAD_GETJOYID(conf.keys[(PadEnum[pad][p])][i]);
				return joyid;
			}
		}
	}
}

void CALLBACK PADupdate(int pad)
{
	int i;
	XEvent E;
	int keyPress = 0, keyRelease = 0;
	KeySym key;

	// keyboard input
	while (XPending(GSdsp) > 0)
	{
		XNextEvent(GSdsp, &E);
		switch (E.type)
		{
			case KeyPress:
				key = XLookupKeysym((XKeyEvent *) & E, 0);

#ifdef ANALOG_CONTROLS_HACK
				switch (key)
				{
					case KEY_PAD_LX_LEFT:
						g_lanalog[pad].x = DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTLX) g_lanalog[pad].x = -g_lanalog[pad].x;
						g_lanalog[pad].x += 0x80;
						break;
					case KEY_PAD_LX_RIGHT:
						g_lanalog[pad].x = -DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTLX) g_lanalog[pad].x = -g_lanalog[pad].x;
						g_lanalog[pad].x += 0x80;
						break;
					case KEY_PAD_LY_UP:
						g_lanalog[pad].y = DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTLY) g_lanalog[pad].y = -g_lanalog[pad].y;
						g_lanalog[pad].y += 0x80;
						break;
					case KEY_PAD_LY_DOWN:
						g_lanalog[pad].y = -DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTLY) g_lanalog[pad].y = -g_lanalog[pad].y;
						g_lanalog[pad].y += 0x80;
						break;
					case KEY_PAD_RX_LEFT:
						g_ranalog[pad].x = DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTRX) g_ranalog[pad].x = -g_ranalog[pad].x;
						g_ranalog[pad].x += 0x80;
						break;
					case KEY_PAD_RX_RIGHT:
						g_ranalog[pad].x = -DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTRX) g_ranalog[pad].x = -g_ranalog[pad].x;
						g_ranalog[pad].x += 0x80;
						break;
					case KEY_PAD_RY_UP:
						g_ranalog[pad].y = DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTRY) g_ranalog[pad].y = -g_ranalog[pad].y;
						g_ranalog[pad].y += 0x80;
						break;
					case KEY_PAD_RY_DOWN:
						g_ranalog[pad].y = -DEF_VALUE / 256;
						if (conf.options&PADOPTION_REVERTRY) g_ranalog[pad].y = -g_ranalog[pad].y;
						g_ranalog[pad].y += 0x80;
						break;
				}
#endif

				i = FindKey(key, pad);
				keyPress |= (1 << i);
				keyRelease &= ~(1 << i);

				event.evt = KEYPRESS;
				event.key = key;
				break;
				
			case KeyRelease:
				key = XLookupKeysym((XKeyEvent *) & E, 0);

#ifdef ANALOG_CONTROLS_HACK
				switch (key)
				{
					case KEY_PAD_LX_LEFT:
						g_lanalog[pad].x = 0x80;
						break;
					case KEY_PAD_LY_UP:
						g_lanalog[pad].y = 0x80;
						break;
					case KEY_PAD_RX_LEFT:
						g_ranalog[pad].x = 0x80;
						break;
					case KEY_PAD_RY_UP:
						g_ranalog[pad].y = 0x80;
						break;
					case KEY_PAD_LX_RIGHT:
						g_lanalog[pad].x = 0x80;
						break;
					case KEY_PAD_LY_DOWN:
						g_lanalog[pad].y = 0x80;
						break;
					case KEY_PAD_RX_RIGHT:
						g_ranalog[pad].x = 0x80;
						break;
					case KEY_PAD_RY_DOWN:
						g_ranalog[pad].y = 0x80;
						break;
				}
#endif

				i = FindKey(key, pad);
				keyPress &= ~(1 << i);
				keyRelease |= (1 << i);
				event.evt = KEYRELEASE;
				event.key = key;
				break;

			case FocusIn:
				XAutoRepeatOff(GSdsp);
				break;

			case FocusOut:
				XAutoRepeatOn(GSdsp);
				break;
		}
	}

	// joystick info
#ifdef JOYSTICK_SUPPORT
	
	SDL_JoystickUpdate();
	
	for (int i = 0; i < PADKEYS; i++)
	{
		int key = conf.keys[PadEnum[pad][0]][i];
		JoystickInfo* pjoy = NULL;

		if (IS_JOYBUTTONS(key))
		{
			int joyid = PAD_GETJOYID(key);
			
			if (joyid >= 0 && joyid < (int)s_vjoysticks.size())
			{
				pjoy = s_vjoysticks[joyid];
				
				if (SDL_JoystickGetButton((pjoy)->GetJoy(), PAD_GETJOYBUTTON(key)))
					status[(pjoy)->GetPAD()] &= ~(1 << i); // pressed
				else
					status[(pjoy)->GetPAD()] |= (1 << i); // pressed
			}
		}
		else if (IS_JOYSTICK(key))
		{
			int joyid = PAD_GETJOYID(key);
			if (joyid >= 0 && joyid < (int)s_vjoysticks.size())
			{

				pjoy = s_vjoysticks[joyid];
				int value = SDL_JoystickGetAxis((pjoy)->GetJoy(), PAD_GETJOYSTICK_AXIS(key));
				int pad = (pjoy)->GetPAD();
				switch (i)
				{
					case PAD_LX:
						if (abs(value) > (pjoy)->GetDeadzone(value))
						{
							g_lanalog[pad].x = value / 256;
							if (conf.options&PADOPTION_REVERTLX)
								g_lanalog[pad].x = -g_lanalog[pad].x;
							g_lanalog[pad].x += 0x80;
						}
						else 
						{
							g_lanalog[pad].x = 0x80;
						}
						break;
					case PAD_LY:
						if (abs(value) > (pjoy)->GetDeadzone(value))
						{
							g_lanalog[pad].y = value / 256;
							if (conf.options&PADOPTION_REVERTLX)
								g_lanalog[pad].y = -g_lanalog[pad].y;
							g_lanalog[pad].y += 0x80;
						}
						else
						{
							g_lanalog[pad].y = 0x80;
						}
						break;
					case PAD_RX:
						if (abs(value) > (pjoy)->GetDeadzone(value))
						{
							g_ranalog[pad].x = value / 256;
							if (conf.options&PADOPTION_REVERTLX)
								g_ranalog[pad].x = -g_ranalog[pad].x;
							g_ranalog[pad].x += 0x80;
						}
						else 
						{
							g_ranalog[pad].x = 0x80;
						}
						break;
					case PAD_RY:
						if (abs(value) > (pjoy)->GetDeadzone(value))
						{
							g_ranalog[pad].y = value / 256;
							if (conf.options&PADOPTION_REVERTLX) g_ranalog[pad].y = -g_ranalog[pad].y;
							g_ranalog[pad].y += 0x80;
						}
						else 
						{
							g_ranalog[pad].y = 0x80;
						}
						break;
				}
			}
		}
		else if (IS_POV(key))
		{
			int joyid = PAD_GETJOYID(key);
			if (joyid >= 0 && joyid < (int)s_vjoysticks.size())
			{
				pjoy = s_vjoysticks[joyid];

				int value = SDL_JoystickGetAxis((pjoy)->GetJoy(), PAD_GETJOYSTICK_AXIS(key));
				int pad = (pjoy)->GetPAD();
				if (PAD_GETPOVSIGN(key) && (value < -2048))
					status[pad] &= ~(1 << i);
				else if (!PAD_GETPOVSIGN(key) && (value > 2048))
					status[pad] &= ~(1 << i);
				else
					status[pad] |= (1 << i);
			}
		}
	}
#endif

	pthread_spin_lock(&s_mutexStatus);
	s_keyPress[pad] |= keyPress;
	s_keyPress[pad] &= ~keyRelease;
	s_keyRelease[pad] |= keyRelease;
	s_keyRelease[pad] &= ~keyPress;
	pthread_spin_unlock(&s_mutexStatus);
}

static GtkWidget *Conf = NULL, *s_devicecombo = NULL;
static int s_selectedpad = 0;

void UpdateConf(int pad)
{
	s_selectedpad = pad;

	int i;
	GtkWidget *Btn;
	for (i = 0; i < ArraySize(s_pGuiKeyMap); i++)
	{

		if (s_pGuiKeyMap[i] == NULL)
			continue;

		Btn = lookup_widget(Conf, GetLabelFromButton(s_pGuiKeyMap[i]).c_str());
		if (Btn == NULL)
		{
			printf("ZeroPAD: cannot find key %s\n", s_pGuiKeyMap[i]);
			continue;
		}

		string tmp;
		if (IS_KEYBOARD(conf.keys[pad][i]))
		{
			char* pstr = XKeysymToString(PAD_GETKEY(conf.keys[pad][i]));
			if (pstr != NULL) tmp = pstr;
		}
		else if (IS_JOYBUTTONS(conf.keys[pad][i]))
		{
			tmp.resize(20);
			sprintf(&tmp[0], "JBut %d", PAD_GETJOYBUTTON(conf.keys[pad][i]));
		}
		else if (IS_JOYSTICK(conf.keys[pad][i]))
		{
			tmp.resize(20);
			sprintf(&tmp[0], "JAxis %d", PAD_GETJOYSTICK_AXIS(conf.keys[pad][i]));
		}
		else if (IS_POV(conf.keys[pad][i]))
		{
			tmp.resize(20);
			sprintf(&tmp[0], "JPOV %d%s", PAD_GETJOYSTICK_AXIS(conf.keys[pad][i]), PAD_GETPOVSIGN(conf.keys[pad][i]) ? "-" : "+");
		}

		if (tmp.size() > 0)
		{
			gtk_entry_set_text(GTK_ENTRY(Btn), tmp.c_str());
		}
		else
			gtk_entry_set_text(GTK_ENTRY(Btn), "Unknown");

		gtk_object_set_user_data(GTK_OBJECT(Btn), (void*)(PADKEYS*pad + i));
	}

	// check bounds
	int joyid = _GetJoystickIdFromPAD(pad);
	
	if (joyid < 0 || joyid >= (int)s_vjoysticks.size())
	{
		// get first unused joystick
		for (joyid = 0; joyid < s_vjoysticks.size(); ++joyid)
		{
			if (s_vjoysticks[joyid]->GetPAD() < 0) break;
		}
	}

	if (joyid >= 0 && joyid < (int)s_vjoysticks.size())
		gtk_combo_box_set_active(GTK_COMBO_BOX(s_devicecombo), joyid); // select the combo
	else 
		gtk_combo_box_set_active(GTK_COMBO_BOX(s_devicecombo), s_vjoysticks.size()); // no gamepad

	int padopts = conf.options >> (16 * pad);
	gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(lookup_widget(Conf, "checkbutton_reverselx")), padopts&PADOPTION_REVERTLX);
	gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(lookup_widget(Conf, "checkbutton_reversely")), padopts&PADOPTION_REVERTLY);
	gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(lookup_widget(Conf, "checkbutton_reverserx")), padopts&PADOPTION_REVERTRX);
	gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(lookup_widget(Conf, "checkbutton_reversery")), padopts&PADOPTION_REVERTRY);
	gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(lookup_widget(Conf, "forcefeedback")), padopts&PADOPTION_FORCEFEEDBACK);
}

void OnConf_Key(GtkButton *button, gpointer user_data)
{
	GdkEvent *ev;
	GtkWidget* label = lookup_widget(Conf, GetLabelFromButton(gtk_button_get_label(button)).c_str());
	if (label == NULL)
	{
		printf("couldn't find correct label\n");
		return;
	}

	int id = (int)(uptr)gtk_object_get_user_data(GTK_OBJECT(label));
	int pad = id / PADKEYS;
	int key = id % PADKEYS;
	unsigned long *pkey = &conf.keys[pad][key];

	vector<JoystickInfo*>::iterator itjoy;

	// save the states
#ifdef JOYSTICK_SUPPORT
	SDL_JoystickUpdate();
	FORIT(itjoy, s_vjoysticks)(*itjoy)->SaveState();
#endif

	for (;;)
	{
		ev = gdk_event_get();
		if (ev != NULL)
		{
			if (ev->type == GDK_KEY_PRESS)
			{
				*pkey = ev->key.keyval;

				char* tmp = XKeysymToString(*pkey);
				if (tmp != NULL)
					gtk_entry_set_text(GTK_ENTRY(label), tmp);
				else
					gtk_entry_set_text(GTK_ENTRY(label), "Unknown");
				return;
			}
		}

#ifdef JOYSTICK_SUPPORT
		SDL_JoystickUpdate();
		FORIT(itjoy, s_vjoysticks)
		{
			// MAKE sure to look for changes in the state!!
			for (int i = 0; i < (*itjoy)->GetNumButtons(); ++i)
			{
				int but = SDL_JoystickGetButton((*itjoy)->GetJoy(), i);
				if (but != (*itjoy)->GetButtonState(i))
				{
					if (!but)    // released, we don't really want this
					{
						(*itjoy)->SetButtonState(i, 0);
						break;
					}

					*pkey = PAD_JOYBUTTON((*itjoy)->GetId(), i);
					char str[32];
					sprintf(str, "JBut %d", i);
					gtk_entry_set_text(GTK_ENTRY(label), str);
					return;
				}
			}

			for (int i = 0; i < (*itjoy)->GetNumAxes(); ++i)
			{
				int value = SDL_JoystickGetAxis((*itjoy)->GetJoy(), i);

				if (value != (*itjoy)->GetAxisState(i))
				{

					if (abs(value) <= (*itjoy)->GetAxisState(i))  // we don't want this
					{
						// released, we don't really want this
						(*itjoy)->SetButtonState(i, value);
						break;
					}


					if (abs(value) > 0x3fff)
					{
						if (key < 16)    // POV
						{
							*pkey = PAD_POV((*itjoy)->GetId(), value < 0, i);
							char str[32];
							sprintf(str, "JPOV %d%s", i, value < 0 ? "-" : "+");
							gtk_entry_set_text(GTK_ENTRY(label), str);
							return;
						}
						else   // axis
						{
							*pkey = PAD_JOYSTICK((*itjoy)->GetId(), i);
							char str[32];
							sprintf(str, "JAxis %d", i);
							gtk_entry_set_text(GTK_ENTRY(label), str);
							return;
						}
					}
				}
			}
		}
#endif
	}
}

void OnConf_Pad1(GtkButton *button, gpointer user_data)
{
	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)))
		UpdateConf(0);
}

void OnConf_Pad2(GtkButton *button, gpointer user_data)
{
	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)))
		UpdateConf(1);
}

void OnConf_Pad3(GtkButton *button, gpointer user_data)
{
	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)))
		UpdateConf(2);
}

void OnConf_Pad4(GtkButton *button, gpointer user_data)
{
	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button)))
		UpdateConf(3);
}

void OnConf_Ok(GtkButton *button, gpointer user_data)
{
//	conf.analog = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(Analog));
	SaveConfig();

	gtk_widget_destroy(Conf);
	gtk_main_quit();
}

void OnConf_Cancel(GtkButton *button, gpointer user_data)
{
	gtk_widget_destroy(Conf);
	gtk_main_quit();
	LoadConfig(); // load previous config
}

void CALLBACK PADconfigure()
{
	char strcurdir[256];
	getcwd(strcurdir, 256);
	s_strIniPath = strcurdir;
	s_strIniPath += "/inis/zeropad.ini";

	LoadConfig();

	Conf = create_Conf();

	// recreate
	JoystickInfo::EnumerateJoysticks(s_vjoysticks);

	s_devicecombo  = lookup_widget(Conf, "joydevicescombo");

	// fill the combo
	char str[255];
	vector<JoystickInfo*>::iterator it;
	
	FORIT(it, s_vjoysticks)
	{
		sprintf(str, "%d: %s - but: %d, axes: %d, pov: %d", (*it)->GetId(), (*it)->GetName().c_str(),
		        (*it)->GetNumButtons(), (*it)->GetNumAxes(), (*it)->GetNumPOV());
		gtk_combo_box_append_text(GTK_COMBO_BOX(s_devicecombo), str);
	}
	
	gtk_combo_box_append_text(GTK_COMBO_BOX(s_devicecombo), "No Gamepad");

	UpdateConf(0);

	gtk_widget_show_all(Conf);
	gtk_main();
}

// GUI event handlers
void on_joydevicescombo_changed(GtkComboBox     *combobox, gpointer         user_data)
{
	int joyid = gtk_combo_box_get_active(combobox);

	// unassign every joystick with this pad
	for (int i = 0; i < (int)s_vjoysticks.size(); ++i)
	{
		if (s_vjoysticks[i]->GetPAD() == s_selectedpad) s_vjoysticks[i]->Assign(-1);
	}

	if (joyid >= 0 && joyid < (int)s_vjoysticks.size()) s_vjoysticks[joyid]->Assign(s_selectedpad);
}

void on_checkbutton_reverselx_toggled(GtkToggleButton *togglebutton, gpointer         user_data)
{
	int mask = PADOPTION_REVERTLX << (16 * s_selectedpad);
	if (gtk_toggle_button_get_active(togglebutton))
		conf.options |= mask;
	else 
		conf.options &= ~mask;
}

void on_checkbutton_reversely_toggled(GtkToggleButton *togglebutton, gpointer         user_data)
{
	int mask = PADOPTION_REVERTLY << (16 * s_selectedpad);
	if (gtk_toggle_button_get_active(togglebutton))
		conf.options |= mask;
	else 
		conf.options &= ~mask;
}

void on_checkbutton_reverserx_toggled(GtkToggleButton *togglebutton, gpointer         user_data)
{
	int mask = PADOPTION_REVERTRX << (16 * s_selectedpad);
	if (gtk_toggle_button_get_active(togglebutton)) 
		conf.options |= mask;
	else 
		conf.options &= ~mask;
}

void on_checkbutton_reversery_toggled(GtkToggleButton *togglebutton, gpointer         user_data)
{
	int mask = PADOPTION_REVERTRY << (16 * s_selectedpad);
	if (gtk_toggle_button_get_active(togglebutton)) 
		conf.options |= mask;
	else 
		conf.options &= ~mask;
}

void on_forcefeedback_toggled(GtkToggleButton *togglebutton, gpointer user_data)
{
	int mask = PADOPTION_REVERTLX << (16 * s_selectedpad);
	if (gtk_toggle_button_get_active(togglebutton))
	{
		conf.options |= mask;

		int joyid = gtk_combo_box_get_active(GTK_COMBO_BOX(s_devicecombo));
		if (joyid >= 0 && joyid < (int)s_vjoysticks.size()) s_vjoysticks[joyid]->TestForce();
	}
	else 
	{
		conf.options &= ~mask;
	}
}

GtkWidget *About = NULL;

void OnAbout_Ok(GtkButton *button, gpointer user_data)
{
	gtk_widget_destroy(About);
	gtk_main_quit();
}

void CALLBACK PADabout()
{

	About = create_About();

	gtk_widget_show_all(About);
	gtk_main();
}

s32 CALLBACK PADtest()
{
	return 0;
}

//////////////////////////
// Joystick definitions //
//////////////////////////

// opens handles to all possible joysticks
void JoystickInfo::EnumerateJoysticks(vector<JoystickInfo*>& vjoysticks)
{
#ifdef JOYSTICK_SUPPORT

	if (!s_bSDLInit)
	{
		if (SDL_Init(SDL_INIT_JOYSTICK) < 0) return;
		SDL_JoystickEventState(SDL_QUERY);
		s_bSDLInit = true;
	}

	vector<JoystickInfo*>::iterator it;
	FORIT(it, vjoysticks) delete *it;

	vjoysticks.resize(SDL_NumJoysticks());
	for (int i = 0; i < (int)vjoysticks.size(); ++i)
	{
		vjoysticks[i] = new JoystickInfo();
		vjoysticks[i]->Init(i, true);
	}

	// set the pads
	for (int pad = 0; pad < 2; ++pad)
	{
		// select the right joystick id
		int joyid = -1;
		for (int i = 0; i < PADKEYS; ++i)
		{
			if (IS_JOYSTICK(conf.keys[pad][i]) || IS_JOYBUTTONS(conf.keys[pad][i]))
			{
				joyid = PAD_GETJOYID(conf.keys[pad][i]);
				break;
			}
		}

		if (joyid >= 0 && joyid < (int)s_vjoysticks.size())
			s_vjoysticks[joyid]->Assign(pad);
	}

#endif
}

JoystickInfo::JoystickInfo()
{
#ifdef JOYSTICK_SUPPORT
	joy = NULL;
#endif
	_id = -1;
	pad = -1;
	axisrange = 0x7fff;
	deadzone = 2000;
}

void JoystickInfo::Destroy()
{
#ifdef JOYSTICK_SUPPORT
	if (joy != NULL)
	{
		if (SDL_JoystickOpened(_id)) SDL_JoystickClose(joy);
		joy = NULL;
	}
#endif
}

bool JoystickInfo::Init(int id, bool bStartThread)
{
#ifdef JOYSTICK_SUPPORT
	Destroy();
	_id = id;

	joy = SDL_JoystickOpen(id);
	if (joy == NULL)
	{
		printf("failed to open joystick %d\n", id);
		return false;
	}

	numaxes = SDL_JoystickNumAxes(joy);
	numbuttons = SDL_JoystickNumButtons(joy);
	numpov = SDL_JoystickNumHats(joy);
	devname = SDL_JoystickName(id);
	vbutstate.resize(numbuttons);
	vaxisstate.resize(numbuttons);

	return true;
#else
	return false;
#endif
}

// assigns a joystick to a pad
void JoystickInfo::Assign(int newpad)
{
	if (pad == newpad) return;
	pad = newpad;

	if (pad >= 0)
	{
		for (int i = 0; i < PADKEYS; ++i)
		{
			if (IS_JOYBUTTONS(conf.keys[pad][i]))
			{
				conf.keys[pad][i] = PAD_JOYBUTTON(_id, PAD_GETJOYBUTTON(conf.keys[pad][i]));
			}
			else if (IS_JOYSTICK(conf.keys[pad][i]))
			{
				conf.keys[pad][i] = PAD_JOYSTICK(_id, PAD_GETJOYBUTTON(conf.keys[pad][i]));
			}
		}
	}
}

void JoystickInfo::SaveState()
{
#ifdef JOYSTICK_SUPPORT
	for (int i = 0; i < numbuttons; ++i)
		vbutstate[i] = SDL_JoystickGetButton(joy, i);
	for (int i = 0; i < numaxes; ++i)
		vaxisstate[i] = SDL_JoystickGetAxis(joy, i);
#endif
}

void JoystickInfo::TestForce()
{
}