/*
===========================================================================
Copyright (C) 1997-2001 Id Software, Inc.

This file is part of Quake 2 source code.

Quake 2 source code 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.

Quake 2 source code 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 Quake 2 source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

// ui_options_screen.c -- the screen options menu

#include <ctype.h>
#ifdef _WIN32
#include <io.h>
#endif
#include "../client/client.h"
#include "ui_local.h"

/*
=======================================================================

SCREEN MENU

=======================================================================
*/

static menuframework_s	s_options_screen_menu;
static menuseparator_s	s_options_screen_header;
static menulist_s		s_options_screen_crosshair_box;
static menuslider_s		s_options_screen_crosshairscale_slider;
static menuslider_s		s_options_screen_crosshairalpha_slider;
static menuslider_s		s_options_screen_crosshairpulse_slider;
static menuslider_s		s_options_screen_hudscale_slider;
static menuslider_s		s_options_screen_hudalpha_slider;
static menulist_s		s_options_screen_hudsqueezedigits_box;
static menulist_s		s_options_screen_fps_box;
static menuaction_s		s_options_screen_defaults_action;
static menuaction_s		s_options_screen_back_action;


// Psychospaz's changeable size crosshair
static void CrosshairSizeFunc( void *unused )
{
//	Cvar_SetValue( "crosshair_scale", s_options_screen_crosshairscale_slider.curvalue*0.25);
	Cvar_SetValue( "crosshair_scale", MenuSlider_GetValue(&s_options_screen_crosshairscale_slider) );
}

static void CrosshairAlphaFunc( void *unused )
{
//	Cvar_SetValue( "crosshair_alpha", s_options_screen_crosshairalpha_slider.curvalue*0.05);
	Cvar_SetValue( "crosshair_alpha",  MenuSlider_GetValue(&s_options_screen_crosshairalpha_slider) );
}

static void CrosshairPulseFunc( void *unused )
{
//	Cvar_SetValue( "crosshair_pulse", s_options_screen_crosshairpulse_slider.curvalue*0.05);
	Cvar_SetValue( "crosshair_pulse",  MenuSlider_GetValue(&s_options_screen_crosshairpulse_slider) );
}

// hud scaling option
static void HudScaleFunc( void *unused )
{
//	Cvar_SetValue( "scr_hudsize", s_options_screen_hudscale_slider.curvalue);
	Cvar_SetValue( "scr_hudsize",  MenuSlider_GetValue(&s_options_screen_hudscale_slider) );
}

// hud trans option
static void HudAlphaFunc( void *unused )
{
//	Cvar_SetValue( "scr_hudalpha", (s_options_screen_hudalpha_slider.curvalue-1)/10);
	Cvar_SetValue( "scr_hudalpha",  MenuSlider_GetValue(&s_options_screen_hudalpha_slider) );
}

// hud squeeze digits option
static void HudSqueezeDigitsFunc( void *unused )
{
	Cvar_SetValue( "scr_hudsqueezedigits", s_options_screen_hudsqueezedigits_box.curvalue);
}

// FPS counter option
static void FPSFunc( void *unused )
{
	Cvar_SetValue( "cl_drawfps", s_options_screen_fps_box.curvalue);
}


/*
=======================================================================
Crosshair loading
=======================================================================
*/

/*static void OldCrosshairFunc( void *unused )
{
	Cvar_SetValue( "crosshair", s_options_crosshair_box.curvalue );
}*/

static void CrosshairFunc (void *unused)
{
	if (s_options_screen_crosshair_box.curvalue == 0) {
		Cvar_SetValue( "crosshair", 0);
		return;
	}
	else
		Cvar_SetValue( "crosshair", atoi(strdup(ui_crosshair_names[s_options_screen_crosshair_box.curvalue]+2)) );
}

void SetCrosshairCursor (void)
{
	int i;
	s_options_screen_crosshair_box.curvalue = 0;

	if (ui_numcrosshairs > 1)
		for (i=0; ui_crosshair_names[i]; i++)
		{
			if (!Q_strcasecmp(va("ch%i", (int)Cvar_VariableValue("crosshair")), ui_crosshair_names[i]))
			{
				s_options_screen_crosshair_box.curvalue = i;
				return;
			}
		}
}

//=======================================================================

static void ScreenSetMenuItemValues( void )
{
	Cvar_SetValue( "crosshair", ClampCvar( 0, 100, Cvar_VariableValue("crosshair") ) );
	//s_options_crosshair_box.curvalue			= Cvar_VariableValue("crosshair");
	SetCrosshairCursor ();

	Cvar_SetValue( "crosshair_scale", ClampCvar( 0.25, 5, Cvar_VariableValue("crosshair_scale") ) );
//	s_options_screen_crosshairscale_slider.curvalue	= Cvar_VariableValue("crosshair_scale")*4;
	MenuSlider_SetValue (&s_options_screen_crosshairscale_slider, Cvar_VariableValue("crosshair_scale"));

	Cvar_SetValue( "crosshair_alpha", ClampCvar( 0.05, 1, Cvar_VariableValue("crosshair_alpha") ) );
//	s_options_screen_crosshairalpha_slider.curvalue	= Cvar_VariableValue("crosshair_alpha")*20;
	MenuSlider_SetValue (&s_options_screen_crosshairalpha_slider, Cvar_VariableValue("crosshair_alpha"));

	Cvar_SetValue( "crosshair_pulse", ClampCvar( 0, 0.5, Cvar_VariableValue("crosshair_pulse") ) );
//	s_options_screen_crosshairpulse_slider.curvalue	= Cvar_VariableValue("crosshair_pulse")*20;
	MenuSlider_SetValue (&s_options_screen_crosshairpulse_slider, Cvar_VariableValue("crosshair_pulse"));

	Cvar_SetValue( "scr_hudsize", ClampCvar( 0, 8, Cvar_VariableValue("scr_hudsize") ) );
//	s_options_screen_hudscale_slider.curvalue		= Cvar_VariableValue("scr_hudsize");
	MenuSlider_SetValue (&s_options_screen_hudscale_slider, Cvar_VariableValue("scr_hudsize"));

	Cvar_SetValue( "scr_hudalpha", ClampCvar( 0, 1, Cvar_VariableValue("scr_hudalpha") ) );
//	s_options_screen_hudalpha_slider.curvalue		= Cvar_VariableValue("scr_hudalpha")*10 + 1;
	MenuSlider_SetValue (&s_options_screen_hudalpha_slider, Cvar_VariableValue("scr_hudalpha"));

	Cvar_SetValue( "scr_hudsqueezedigits", ClampCvar( 0, 1, Cvar_VariableValue("scr_hudsqueezedigits") ) );
	s_options_screen_hudsqueezedigits_box.curvalue	= Cvar_VariableValue("scr_hudsqueezedigits");

	Cvar_SetValue( "cl_drawfps", ClampCvar( 0, 1, Cvar_VariableValue("cl_drawfps") ) );
	s_options_screen_fps_box.curvalue				= Cvar_VariableValue("cl_drawfps");
}

static void ScreenResetDefaultsFunc ( void *unused )
{
	Cvar_SetToDefault ("crosshair");
	Cvar_SetToDefault ("crosshair_scale");
	Cvar_SetToDefault ("crosshair_alpha");
	Cvar_SetToDefault ("crosshair_pulse");
	Cvar_SetToDefault ("scr_hudsize");
	Cvar_SetToDefault ("scr_hudalpha");
	Cvar_SetToDefault ("scr_hudsqueezedigits");
	Cvar_SetToDefault ("cl_drawfps");

	ScreenSetMenuItemValues();
}

void Options_Screen_MenuInit ( void )
{
	static const char *yesno_names[] =
	{
		"no",
		"yes",
		0
	};

	int y = 3*MENU_LINE_SIZE;

	s_options_screen_menu.x = SCREEN_WIDTH*0.5;
	s_options_screen_menu.y = SCREEN_HEIGHT*0.5 - 58;
	s_options_screen_menu.nitems = 0;

	s_options_screen_header.generic.type		= MTYPE_SEPARATOR;
	s_options_screen_header.generic.textSize	= MENU_HEADER_FONT_SIZE;
	s_options_screen_header.generic.name		= "Screen";
	s_options_screen_header.generic.x			= MENU_HEADER_FONT_SIZE/2 * (int)strlen(s_options_screen_header.generic.name);
	s_options_screen_header.generic.y			= -2*MENU_LINE_SIZE;	// 0

#if 0
	// free any loaded crosshairs to prevent memory leak
	if (ui_numcrosshairs > 0) {
		FS_FreeFileList (ui_crosshair_names, ui_numcrosshairs);
	}
	ui_numcrosshairs = 0;
	ui_crosshair_names = UI_SetCrosshairNames ();
#endif

	s_options_screen_crosshair_box.generic.type				= MTYPE_SPINCONTROL;
	s_options_screen_crosshair_box.generic.textSize			= MENU_FONT_SIZE;
	s_options_screen_crosshair_box.generic.x				= 0;
	s_options_screen_crosshair_box.generic.y				= y;
	s_options_screen_crosshair_box.generic.name				= "crosshair";
	s_options_screen_crosshair_box.generic.callback			= CrosshairFunc;
	s_options_screen_crosshair_box.itemnames				= ui_crosshair_names;
	s_options_screen_crosshair_box.generic.statusbar		= "changes crosshair";

	// Psychospaz's changeable size crosshair
	s_options_screen_crosshairscale_slider.generic.type			= MTYPE_SLIDER;
	s_options_screen_crosshairscale_slider.generic.textSize		= MENU_FONT_SIZE;
	s_options_screen_crosshairscale_slider.generic.x			= 0;
	s_options_screen_crosshairscale_slider.generic.y			= y += 5*MENU_LINE_SIZE;
	s_options_screen_crosshairscale_slider.generic.name			= "crosshair scale";
	s_options_screen_crosshairscale_slider.generic.callback		= CrosshairSizeFunc;
//	s_options_screen_crosshairscale_slider.minvalue				= 1;
//	s_options_screen_crosshairscale_slider.maxvalue				= 20;
	s_options_screen_crosshairscale_slider.maxPos				= 19;
	s_options_screen_crosshairscale_slider.baseValue			= 0.25f;
	s_options_screen_crosshairscale_slider.increment			= 0.25f;
	s_options_screen_crosshairscale_slider.generic.statusbar	= "changes size of crosshair";

	s_options_screen_crosshairalpha_slider.generic.type			= MTYPE_SLIDER;
	s_options_screen_crosshairalpha_slider.generic.textSize		= MENU_FONT_SIZE;
	s_options_screen_crosshairalpha_slider.generic.x			= 0;
	s_options_screen_crosshairalpha_slider.generic.y			= y += MENU_LINE_SIZE;
	s_options_screen_crosshairalpha_slider.generic.name			= "crosshair alpha";
	s_options_screen_crosshairalpha_slider.generic.callback		= CrosshairAlphaFunc;
//	s_options_screen_crosshairalpha_slider.minvalue				= 1;
//	s_options_screen_crosshairalpha_slider.maxvalue				= 20;
	s_options_screen_crosshairalpha_slider.maxPos				= 19;
	s_options_screen_crosshairalpha_slider.baseValue			= 0.05f;
	s_options_screen_crosshairalpha_slider.increment			= 0.05f;
	s_options_screen_crosshairalpha_slider.generic.statusbar	= "changes opacity of crosshair";

	s_options_screen_crosshairpulse_slider.generic.type			= MTYPE_SLIDER;
	s_options_screen_crosshairpulse_slider.generic.textSize		= MENU_FONT_SIZE;
	s_options_screen_crosshairpulse_slider.generic.x			= 0;
	s_options_screen_crosshairpulse_slider.generic.y			= y += MENU_LINE_SIZE;
	s_options_screen_crosshairpulse_slider.generic.name			= "crosshair pulse";
	s_options_screen_crosshairpulse_slider.generic.callback		= CrosshairPulseFunc;
//	s_options_screen_crosshairpulse_slider.minvalue				= 0;
//	s_options_screen_crosshairpulse_slider.maxvalue				= 10;
	s_options_screen_crosshairpulse_slider.maxPos				= 10;
	s_options_screen_crosshairpulse_slider.baseValue			= 0.0f;
	s_options_screen_crosshairpulse_slider.increment			= 0.05f;
	s_options_screen_crosshairpulse_slider.generic.statusbar	= "changes pulse amplitude of crosshair";

	// hud scaling option
	s_options_screen_hudscale_slider.generic.type			= MTYPE_SLIDER;
	s_options_screen_hudscale_slider.generic.textSize		= MENU_FONT_SIZE;
	s_options_screen_hudscale_slider.generic.x				= 0;
	s_options_screen_hudscale_slider.generic.y				= y += 2*MENU_LINE_SIZE;
	s_options_screen_hudscale_slider.generic.name			= "status bar scale";
	s_options_screen_hudscale_slider.generic.callback		= HudScaleFunc;
//	s_options_screen_hudscale_slider.minvalue				= 0;
//	s_options_screen_hudscale_slider.maxvalue				= 8;
	s_options_screen_hudscale_slider.maxPos					= 8;
	s_options_screen_hudscale_slider.baseValue				= 0.0f;
	s_options_screen_hudscale_slider.increment				= 1.0f;
	s_options_screen_hudscale_slider.generic.statusbar		= "changes size of HUD elements";

	// hud trans option
	s_options_screen_hudalpha_slider.generic.type			= MTYPE_SLIDER;
	s_options_screen_hudalpha_slider.generic.textSize		= MENU_FONT_SIZE;
	s_options_screen_hudalpha_slider.generic.x				= 0;
	s_options_screen_hudalpha_slider.generic.y				= y += MENU_LINE_SIZE;
	s_options_screen_hudalpha_slider.generic.name			= "status bar transparency";
	s_options_screen_hudalpha_slider.generic.callback		= HudAlphaFunc;
//	s_options_screen_hudalpha_slider.minvalue				= 1;
//	s_options_screen_hudalpha_slider.maxvalue				= 11;
	s_options_screen_hudalpha_slider.maxPos					= 10;
	s_options_screen_hudalpha_slider.baseValue				= 0.0f;
	s_options_screen_hudalpha_slider.increment				= 0.1f;
	s_options_screen_hudalpha_slider.generic.statusbar		= "changes opacity of HUD elements";

	// hud squeeze digits option
	s_options_screen_hudsqueezedigits_box.generic.type		= MTYPE_SPINCONTROL;
	s_options_screen_hudsqueezedigits_box.generic.textSize	= MENU_FONT_SIZE;
	s_options_screen_hudsqueezedigits_box.generic.x			= 0;
	s_options_screen_hudsqueezedigits_box.generic.y			= y += MENU_LINE_SIZE;
	s_options_screen_hudsqueezedigits_box.generic.name		= "status bar digit squeezing";
	s_options_screen_hudsqueezedigits_box.generic.callback	= HudSqueezeDigitsFunc;
	s_options_screen_hudsqueezedigits_box.itemnames			= yesno_names;
	s_options_screen_hudsqueezedigits_box.generic.statusbar	= "enables showing of longer numbers on HUD";

	s_options_screen_fps_box.generic.type				= MTYPE_SPINCONTROL;
	s_options_screen_fps_box.generic.textSize			= MENU_FONT_SIZE;
	s_options_screen_fps_box.generic.x					= 0;
	s_options_screen_fps_box.generic.y					= y += 2*MENU_LINE_SIZE;
	s_options_screen_fps_box.generic.name				= "FPS counter";
	s_options_screen_fps_box.generic.callback			= FPSFunc;
	s_options_screen_fps_box.itemnames					= yesno_names;
	s_options_screen_fps_box.generic.statusbar			= "enables FPS counter";

	s_options_screen_defaults_action.generic.type		= MTYPE_ACTION;
	s_options_screen_defaults_action.generic.textSize	= MENU_FONT_SIZE;
	s_options_screen_defaults_action.generic.x			= MENU_FONT_SIZE;
	s_options_screen_defaults_action.generic.y			= y+=2*MENU_LINE_SIZE;
	s_options_screen_defaults_action.generic.name		= "reset defaults";
	s_options_screen_defaults_action.generic.callback	= ScreenResetDefaultsFunc;
	s_options_screen_defaults_action.generic.statusbar	= "resets all screen settings to internal defaults";

	s_options_screen_back_action.generic.type			= MTYPE_ACTION;
	s_options_screen_back_action.generic.textSize		= MENU_FONT_SIZE;
	s_options_screen_back_action.generic.x				= MENU_FONT_SIZE;
	s_options_screen_back_action.generic.y				= y+=2*MENU_LINE_SIZE;
	s_options_screen_back_action.generic.name			= "back to options";
	s_options_screen_back_action.generic.callback		= UI_BackMenu;

	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_header );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_crosshair_box );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_crosshairscale_slider );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_crosshairalpha_slider );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_crosshairpulse_slider );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_hudscale_slider );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_hudalpha_slider );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_hudsqueezedigits_box );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_fps_box );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_defaults_action );
	Menu_AddItem( &s_options_screen_menu, ( void * ) &s_options_screen_back_action );

	ScreenSetMenuItemValues ();
}

void MenuCrosshair_MouseClick ( void )
{
	char *sound = NULL;
	buttonmenuobject_t crosshairbutton;
	int button_x, button_y;
	int button_size;

	button_size = 36;

	button_x = SCREEN_WIDTH*0.5 - 14;
	button_y = s_options_screen_menu.y + 42;

	UI_AddButton (&crosshairbutton, 0, button_x, button_y, button_size, button_size);

	if ( (ui_mousecursor.x >= crosshairbutton.min[0]) && (ui_mousecursor.x <= crosshairbutton.max[0]) &&
		(ui_mousecursor.y >= crosshairbutton.min[1]) && (ui_mousecursor.y <= crosshairbutton.max[1]) )
	{
		if (!ui_mousecursor.buttonused[MOUSEBUTTON1] && (ui_mousecursor.buttonclicks[MOUSEBUTTON1] == 1) )
		{
			s_options_screen_crosshair_box.curvalue++;
			if (s_options_screen_crosshair_box.curvalue > ui_numcrosshairs-1)
				s_options_screen_crosshair_box.curvalue = 0; // wrap around
			CrosshairFunc (NULL);

			ui_mousecursor.buttonused[MOUSEBUTTON1] = true;
			ui_mousecursor.buttonclicks[MOUSEBUTTON1] = 0;
			sound = menu_move_sound;
			if ( sound )
				S_StartLocalSound( sound );
		}
		if (!ui_mousecursor.buttonused[MOUSEBUTTON2] && (ui_mousecursor.buttonclicks[MOUSEBUTTON2] == 1) )
		{
			s_options_screen_crosshair_box.curvalue--;
			if (s_options_screen_crosshair_box.curvalue < 0)
				s_options_screen_crosshair_box.curvalue = ui_numcrosshairs-1; // wrap around
			CrosshairFunc (NULL);

			ui_mousecursor.buttonused[MOUSEBUTTON2] = true;
			ui_mousecursor.buttonclicks[MOUSEBUTTON2] = 0;
			sound = menu_move_sound;
			if ( sound )
				S_StartLocalSound( sound );
		}
	}
}

void DrawMenuCrosshair (void)
{
	SCR_DrawFill (SCREEN_WIDTH*0.5 - 18, s_options_screen_menu.y + 42,
					36, 36, ALIGN_CENTER, 60,60,60,255);
	SCR_DrawFill (SCREEN_WIDTH*0.5 - 17, s_options_screen_menu.y + 43,
					34, 34, ALIGN_CENTER,  0,0,0,255);

	if (s_options_screen_crosshair_box.curvalue < 1)
		return;

	SCR_DrawPic (SCREEN_WIDTH*0.5-16, s_options_screen_menu.y + 44,
					32, 32, ALIGN_CENTER, ui_crosshair_names[s_options_screen_crosshair_box.curvalue], 1.0);
}

void Options_Screen_MenuDraw (void)
{
	Menu_DrawBanner( "m_banner_options" );

	Menu_AdjustCursor( &s_options_screen_menu, 1 );
	Menu_Draw( &s_options_screen_menu );
	DrawMenuCrosshair();
}

const char *Options_Screen_MenuKey( int key )
{
	return Default_MenuKey( &s_options_screen_menu, key );
}

void M_Menu_Options_Screen_f (void)
{
	Options_Screen_MenuInit();
	UI_PushMenu ( Options_Screen_MenuDraw, Options_Screen_MenuKey );
}