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

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 "extdll.h"
#include "basemenu.h"
#include "utils.h"
#include "menu_btnsbmp_table.h"
#include "menu_strings.h"

#define ART_BANNER		"gfx/shell/head_vidmodes"

#define ID_BACKGROUND	0
#define ID_BANNER		1
#define ID_APPLY		2
#define ID_DONE		3
#define ID_VIDMODELIST	4
#define ID_FULLSCREEN	5
#define ID_VERTICALSYNC	6
#define ID_TABLEHINT	7

#define MAX_VIDMODES	65

typedef struct
{
	const char	*videoModesPtr[MAX_VIDMODES];

	menuFramework_s	menu;

	menuBitmap_s	background;
	menuBitmap_s	banner;
	menuPicButton_s	ok;
	menuPicButton_s	cancel;
	menuCheckBox_s	windowed;
	menuCheckBox_s	vsync;

	menuScrollList_s	vidList;
	menuAction_s	listCaption;
} uiVidModes_t;

static uiVidModes_t	uiVidModes;

/*
=================
UI_VidModes_GetModesList
=================
*/
static void UI_VidModes_GetConfig( void )
{
	for( int i = 0; i < MAX_VIDMODES-1; i++ )
	{
		uiVidModes.videoModesPtr[i] = VID_GET_MODE( i );
		if( !uiVidModes.videoModesPtr[i] )
			break; // end of list
	}

	uiVidModes.videoModesPtr[i] = NULL;	// terminator

	uiVidModes.vidList.itemNames = uiVidModes.videoModesPtr;
	uiVidModes.vidList.curItem = CVAR_GET_FLOAT( "vid_mode" );

	if( !CVAR_GET_FLOAT( "fullscreen" ))
		uiVidModes.windowed.enabled = 1;

	if( CVAR_GET_FLOAT( "gl_vsync" ))
		uiVidModes.vsync.enabled = 1;
}

/*
=================
UI_VidModes_SetConfig
=================
*/
static void UI_VidOptions_SetConfig( void )
{
	CVAR_SET_FLOAT( "vid_mode", uiVidModes.vidList.curItem );
	CVAR_SET_FLOAT( "fullscreen", !uiVidModes.windowed.enabled );
	CVAR_SET_FLOAT( "gl_vsync", uiVidModes.vsync.enabled );
}

/*
=================
UI_VidModes_UpdateConfig
=================
*/
static void UI_VidOptions_UpdateConfig( void )
{
	CVAR_SET_FLOAT( "gl_vsync", uiVidModes.vsync.enabled );
}

/*
=================
UI_VidModes_Callback
=================
*/
static void UI_VidModes_Callback( void *self, int event )
{
	menuCommon_s	*item = (menuCommon_s *)self;

	switch( item->id )
	{
	case ID_FULLSCREEN:
	case ID_VERTICALSYNC:
		if( event == QM_PRESSED )
			((menuCheckBox_s *)self)->focusPic = UI_CHECKBOX_PRESSED;
		else ((menuCheckBox_s *)self)->focusPic = UI_CHECKBOX_FOCUS;
		break;
	}

	if( event == QM_CHANGED )
	{
		UI_VidOptions_UpdateConfig();
		return;
	}

	if( event != QM_ACTIVATED )
		return;

	switch( item->id )
	{
	case ID_DONE:
		UI_PopMenu();
		break;
	case ID_APPLY:
		UI_VidOptions_SetConfig ();
		UI_PopMenu();
		break;
	}
}

/*
=================
UI_VidModes_Init
=================
*/
static void UI_VidModes_Init( void )
{
	memset( &uiVidModes, 0, sizeof( uiVidModes_t ));

	uiVidModes.menu.vidInitFunc = UI_VidModes_Init;
	
	uiVidModes.background.generic.id = ID_BACKGROUND;
	uiVidModes.background.generic.type = QMTYPE_BITMAP;
	uiVidModes.background.generic.flags = QMF_INACTIVE;
	uiVidModes.background.generic.x = 0;
	uiVidModes.background.generic.y = 0;
	uiVidModes.background.generic.width = 1024;
	uiVidModes.background.generic.height = 768;
	uiVidModes.background.pic = ART_BACKGROUND;

	uiVidModes.banner.generic.id = ID_BANNER;
	uiVidModes.banner.generic.type = QMTYPE_BITMAP;
	uiVidModes.banner.generic.flags = QMF_INACTIVE|QMF_DRAW_ADDITIVE;
	uiVidModes.banner.generic.x = UI_BANNER_POSX;
	uiVidModes.banner.generic.y = UI_BANNER_POSY;
	uiVidModes.banner.generic.width = UI_BANNER_WIDTH;
	uiVidModes.banner.generic.height = UI_BANNER_HEIGHT;
	uiVidModes.banner.pic = ART_BANNER;

	uiVidModes.ok.generic.id = ID_APPLY;
	uiVidModes.ok.generic.type = QMTYPE_BM_BUTTON;
	uiVidModes.ok.generic.flags = QMF_HIGHLIGHTIFFOCUS|QMF_DROPSHADOW;
	uiVidModes.ok.generic.x = 72;
	uiVidModes.ok.generic.y = 230;
	uiVidModes.ok.generic.name = "Apply";
	uiVidModes.ok.generic.statusText = "Apply changes";
	uiVidModes.ok.generic.callback = UI_VidModes_Callback;

	UI_UtilSetupPicButton( &uiVidModes.ok, PC_OK );

	uiVidModes.cancel.generic.id = ID_DONE;
	uiVidModes.cancel.generic.type = QMTYPE_BM_BUTTON;
	uiVidModes.cancel.generic.flags = QMF_HIGHLIGHTIFFOCUS|QMF_DROPSHADOW;
	uiVidModes.cancel.generic.x = 72;
	uiVidModes.cancel.generic.y = 280;
	uiVidModes.cancel.generic.name = "Done";
	uiVidModes.cancel.generic.statusText = "Return back to previous menu";
	uiVidModes.cancel.generic.callback = UI_VidModes_Callback;

	UI_UtilSetupPicButton( &uiVidModes.cancel, PC_CANCEL );

	uiVidModes.listCaption.generic.id = ID_TABLEHINT;
	uiVidModes.listCaption.generic.type = QMTYPE_BM_BUTTON;
	uiVidModes.listCaption.generic.flags = QMF_INACTIVE|QMF_SMALLFONT;
	uiVidModes.listCaption.generic.color = uiColorHelp;
	uiVidModes.listCaption.generic.name = MenuStrings[HINT_DISPLAYMODE];
	uiVidModes.listCaption.generic.x = 400;
	uiVidModes.listCaption.generic.y = 270;

	uiVidModes.vidList.generic.id = ID_VIDMODELIST;
	uiVidModes.vidList.generic.type = QMTYPE_SCROLLLIST;
	uiVidModes.vidList.generic.flags = QMF_HIGHLIGHTIFFOCUS|QMF_SMALLFONT;
	uiVidModes.vidList.generic.x = 400;
	uiVidModes.vidList.generic.y = 300;
	uiVidModes.vidList.generic.width = 560;
	uiVidModes.vidList.generic.height = 300;
	uiVidModes.vidList.generic.callback = UI_VidModes_Callback;

	uiVidModes.windowed.generic.id = ID_FULLSCREEN;
	uiVidModes.windowed.generic.type = QMTYPE_CHECKBOX;
	uiVidModes.windowed.generic.flags = QMF_HIGHLIGHTIFFOCUS|QMF_ACT_ONRELEASE|QMF_MOUSEONLY|QMF_DROPSHADOW;
	uiVidModes.windowed.generic.name = "Run in a window";
	uiVidModes.windowed.generic.x = 400;
	uiVidModes.windowed.generic.y = 620;
	uiVidModes.windowed.generic.callback = UI_VidModes_Callback;
	uiVidModes.windowed.generic.statusText = "Run game in window mode";

	uiVidModes.vsync.generic.id = ID_VERTICALSYNC;
	uiVidModes.vsync.generic.type = QMTYPE_CHECKBOX;
	uiVidModes.vsync.generic.flags = QMF_HIGHLIGHTIFFOCUS|QMF_ACT_ONRELEASE|QMF_MOUSEONLY|QMF_DROPSHADOW;
	uiVidModes.vsync.generic.name = "Vertical sync";
	uiVidModes.vsync.generic.x = 400;
	uiVidModes.vsync.generic.y = 670;
	uiVidModes.vsync.generic.callback = UI_VidModes_Callback;
	uiVidModes.vsync.generic.statusText = "enable vertical synchronization";

	UI_VidModes_GetConfig();

	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.background );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.banner );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.ok );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.cancel );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.windowed );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.vsync );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.listCaption );
	UI_AddItem( &uiVidModes.menu, (void *)&uiVidModes.vidList );
}

/*
=================
UI_VidModes_Precache
=================
*/
void UI_VidModes_Precache( void )
{
	PIC_Load( ART_BACKGROUND );
	PIC_Load( ART_BANNER );
}

/*
=================
UI_VidModes_Menu
=================
*/
void UI_VidModes_Menu( void )
{
	UI_VidModes_Precache();
	UI_VidModes_Init();

	UI_PushMenu( &uiVidModes.menu );
}