/*

    viDOOM - level editor for DOOM

    Copyright (C) 2000  Ian Cowburn (ianc@noddybox.demon.co.uk)

    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

    -------------------------------------------------------------------------

    Editor MULTIMODE definitions

*/
static const char rcs_id[]="$Id$";

#include "config.h"
#include "globals.h"

#include "editvar.h"

#define VERTEX		1
#define THING		2


/* ---------------------------------------- PRIVATE UTILS
*/
static int GetIterType(Iterator *i,MultiObj **mr,EditVert **v,EditThing **t)
{
    int *f;
    MultiObj *m;

    TRACE;

    f=IteratorData(*i);
    m=GETMULTI(*f);

    switch(m->type)
    	{
	case VERTEX:
	    *v=GETVERT(m->i);
	    break;
	case THING:
	    *t=GETTHING(m->i);
	    break;
	}

    *i=IteratorNext(*i);

    if (mr)
    	*mr=m;

    return(m->type);
}


static int GetType(MultiObj *m,EditVert **v,EditThing **t)
{
    TRACE;

    switch(m->type)
    	{
	case VERTEX:
	    *v=GETVERT(m->i);
	    break;
	case THING:
	    *t=GETTHING(m->i);
	    break;
	}

    return(m->type);
}


static void SelectionCentre(int *x,int *y)
{
    int *f;
    MultiObj *m;
    Iterator i;
    int min_x,min_y,max_x,max_y;

    TRACE;

    i=ListIterator(selected);

    min_x=99999;
    min_y=99999;
    max_x=-99999;
    max_y=-99999;

    while(i)
	{
	f=IteratorData(i);
	m=GETMULTI(*f);

	min_x=MIN(m->x,min_x);
	min_y=MIN(m->y,min_y);
	max_x=MAX(m->x,max_x);
	max_y=MAX(m->y,max_y);

	i=IteratorNext(i);
	}

    *x=min_x+(max_x-min_x)/2;
    *y=min_y+(max_y-min_y)/2;
}


static void ApplySelectionCoords(void)
{
    MultiObj *m;
    Iterator i;
    EditVert *v;
    EditThing *t;

    TRACE;

    i=ListIterator(selected);

    while(i)
	switch(GetIterType(&i,&m,&v,&t))
	    {
	    case THING:
		t->t.x=m->x;
		t->t.y=m->y;
	    	break;

	    case VERTEX:
		v->v.x=m->x;
		v->v.y=m->y;
	    	break;
	    }
}


/* ---------------------------------------- EXPORTED UTILS
*/
void GenerateMultiMap(void)
{
    MultiObj *m;
    EditVert *v;
    EditThing *t;
    Object o;
    int f;

    TRACE;

    if (!multimap)
    	multimap=MapNew(sizeof(MultiObj));
    else
	{
	for(f=0;f<MapSize(multimap);f++)
	    {
	    memcpy(&o,MapElem(multimap,f),sizeof(Object));

	    if (o.data)
	    	Release(o.data);
	    }

    	multimap=MapEmpty(multimap);
	}

    for(f=0;f<MapSize(vertex);f++)
	if ((v=GETVERT(f)))
	    {
	    m=Grab(sizeof(MultiObj));
	    m->type=VERTEX;
	    m->i=f;
	    m->x=v->v.x;
	    m->y=v->v.y;
	    o.data=m;
	    o.select=SELECT_NONE;
	    MapAdd(multimap,-1,&o);
	    }

    for(f=0;f<MapSize(thing);f++)
	if ((t=GETTHING(f)))
	    {
	    m=Grab(sizeof(MultiObj));
	    m->type=THING;
	    m->i=f;
	    m->x=t->t.x;
	    m->y=t->t.y;
	    o.data=m;
	    o.select=SELECT_NONE;
	    MapAdd(multimap,-1,&o);
	    }
}

/* ---------------------------------------- GENERIC THING FUNCS 
*/
int PositionOnObject_MULTI(int x,int y,void *data)
{
    EditVert *v;
    EditThing *t;

    TRACE;

    switch(GetType(data,&v,&t))
    	{
	case VERTEX:
	    return (PositionOnObject_VERTEX(x,y,v));
	    break;
	case THING:
	    return (PositionOnObject_THING(x,y,t));
	    break;
	}

    return (FALSE);
}


void SelectBox_MULTI(int x1,int y1,int x2,int y2)
{
    Object *o;
    MultiObj *m;
    int f;

    TRACE;

    for(f=0;f<MapSize(multimap);f++)
    	{
	o=MapElem(multimap,f);

	if ((m=o->data))
	    {
	    if ((o->select!=SELECT_SELECTED)&&
	    		(BOXBOUND(m->x,m->y,x1,y1,x2,y2)))
		{
		SetSelect(f,SELECT_SELECTED);
		ListAppend(selected,&f);
		}
	    }
	}
}


void SelectByType_MULTI(void)
{
    TRACE;
    return;
}


void DrawObject_MULTI(void *data, int selmode)
{
    MultiObj *m;

    TRACE;
    m=data;

    switch(m->type)
    	{
	case VERTEX:
	    DrawObject_VERTEX(GETVERT(m->i),selmode);
	    break;
	case THING:
	    DrawObject_THING(GETTHING(m->i),selmode);
	    break;
	default:
	    break;
	}
}


void DrawObjectInfo_MULTI(void)
{
    MultiObj *m;

    TRACE;

    if (!draw_current_info)
    	return;

    if ((current!=-1)&&((m=GETMULTI(current))))
	GuiDrawInfoBox("MULTI MODE",GUI_FLUSH_LEFT,GUI_FLUSH_LOWER,FALSE,
			"Object type : %s|"
			"Number      : %d",
				(m->type == VERTEX ? "VERTEX" : "THING "),
				m->i);
    else
	GuiDrawInfoBox("MULTI MODE",GUI_FLUSH_LEFT,GUI_FLUSH_LOWER,FALSE,
			"Object type :       |"
			"Number      : -");
}


void DrawObjectHeader_MULTI(void)
{
    TRACE;
}


void MoveObject_MULTI(void)
{
    GFXEvent ev;
    int omx,omy;
    int dmx,dmy;
    int done;
    Iterator i;
    Iterator i2;
    MultiObj *m;
    List orig;
    int *f;
    Point p;
    int cancel=FALSE;

    TRACE;

    omx=SnapX(XToMap(ms.x));
    omy=SnapY(YToMap(ms.y));
    GFX_bounce();

    done=FALSE;
    cancel=FALSE;
    orig=ListNew(sizeof(Point));

    i=ListIterator(selected);

    while(i)
    	{
	f=IteratorData(i);
	m=GETMULTI(*f);
	p.x=m->x;
	p.y=m->y;
	ListAppend(orig,&p);
	i=IteratorNext(i);
	}

    while(!done)
    	{
	GuiDrawInfoBox("Move Multiple Objects",
			    GUI_FLUSH_RIGHT,GUI_FLUSH_LOWER,FALSE,
				"Left mouse button to place|ESC to cancel");

	GFX_redraw();
	GFX_await_input_full(&ev);

	switch(ev.type)
	    {
	    case GFX_KEY_EVENT:
		HandleMoveKey(ev.key,FALSE);

		/* Cancel the move
		*/
		if (ev.key.code==GFX_ESC)
		    {
		    cancel=TRUE;

		    i=ListIterator(selected);
		    i2=ListIterator(orig);

		    while(i2)
		    	{
			f=IteratorData(i);
			memcpy(&p,IteratorData(i2),sizeof(Point));
			m=GETMULTI(*f);
			m->x=p.x;
			m->y=p.y;

			i=IteratorNext(i);
			i2=IteratorNext(i2);
			}

		    ApplySelectionCoords();

		    done=TRUE;
		    dmx=0;
		    dmy=0;
		    }
		else
		    {
		    dmx=SnapX(XToMap(ms.x))-omx;
		    dmy=SnapY(YToMap(ms.y))-omy;
		    }

		break;

	    case GFX_MOUSE_EVENT:
		memcpy(&ms,&ev.mouse,sizeof(ev.mouse));

		if (ms.b&GFX_BUTLEFT)
		    done=TRUE;

		dmx=SnapX(XToMap(ms.x))-omx;
		dmy=SnapY(YToMap(ms.y))-omy;
		break;

	    default:
		dmx=0;
		dmy=0;
	    	break;
	    }
	
	if ((dmx)||(dmy))
	    {
	    i=ListIterator(selected);
	    while(i)
		{
		f=IteratorData(i);

		m=GETMULTI(*f);

		m->x+=dmx;
		m->y+=dmy;

		i=IteratorNext(i);
		}

	    ApplySelectionCoords();

	    omx=SnapX(XToMap(ms.x));
	    omy=SnapY(YToMap(ms.y));

	    FullRedraw();
	    }
	}

    ListClear(orig);

    if ((clear_on_move)&&(!cancel))
    	ClearSelection();

    FullRedraw();
}


void RotateObject_MULTI(double angle)
{
    int cx,cy;
    int x,y;
    int *f;
    Iterator i;
    MultiObj *m;

    TRACE;

    SelectionCentre(&cx,&cy);

    i=ListIterator(selected);

    while(i)
	{
	f=IteratorData(i);
	m=GETMULTI(*f);

	x=m->x;
	y=m->y;

	Rotate(cx,cy,&x,&y,angle);

	m->x=x;
	m->y=y;

	i=IteratorNext(i);
	}

    ApplySelectionCoords();
}


void ScaleObject_MULTI(double scale)
{
    int cx,cy;
    int x,y;
    int *f;
    Iterator i;
    MultiObj *m;

    TRACE;

    SelectionCentre(&cx,&cy);

    i=ListIterator(selected);

    while(i)
	{
	f=IteratorData(i);
	m=GETMULTI(*f);

	x=m->x;
	y=m->y;

	Scale(cx,cy,&x,&y,scale);

	m->x=x;
	m->y=y;

	i=IteratorNext(i);
	}

    ApplySelectionCoords();
}


void SetTagObject_MULTI(int tag)
{
    TRACE;
}


void LocateObject_MULTI(void *obj)
{
    MultiObj *m;

    TRACE;

    m=obj;

    ox=m->x-scale*SCRW/2;
    oy=m->y+scale*SCRH/2;

}


void ObjectInsert_MULTI(void)
{
    TRACE;
}


void ObjectDelete_MULTI(void)
{
    TRACE;
}


void ObjectMenu_MULTI(void)
{
    TRACE;
}


void ObjectKey_MULTI(GFXKey k)
{
    TRACE;
}


int ObjectHasTag_MULTI(void *obj, int tag)
{
    TRACE;
    return(FALSE);
}


void SetSelect_MULTI(int i, int mode)
{
    Object *o;
    MultiObj *m;
    Map om;

    TRACE;
    o=MapElem(multimap,i);

    if ((m=o->data))
    	{
	o->select=mode;

	if (m->type==VERTEX)
	    om=vertex;
	else
	    om=thing;

	o=MapElem(om,m->i);
	o->select=mode;
	}
}


/* END OF FILE */