#include "diawxxt.h"
#include <map>
#include <string>

using namespace std;

class CLIST_MAP{
public:
	map<string, int> lk;
};

typedef map<string,int>::iterator CLIST_MAP_IT;

class MFORM_CLIST: public MFORM{
	CLIST *cl;
public:
	MFORM_CLIST(CLIST *_cl)
		: MFORM (_cl,""){
		cl = _cl;
	}
	void hmoveitems(int newpos){
		MFORM::hmoveitems (newpos);
		if (cl->hoffset != hoffset){
			cl->hoffset = hoffset;
			cl->drawhead();
		}
	}
	void OnPaint(){
			SetBackground (brush_white);
			dc->SetBackground (brush_white);
			dc->Clear();
			MFORM::OnPaint();
	}
	void OnEvent(wxMouseEvent & event){
		#if 0
			if (event.Entering()){
				fprintf (stderr,"Entering\n");
				SetFocus();
			}else if (event.Leaving()){
				fprintf (stderr,"Leaving\n");
			}
		#endif
		//cl->OnEvent (event);
		MFORM::OnEvent(event);
	}
};


PUBLIC CLIST::CLIST (
	FORMBASE *_parent,
	const char *_id,
	int _nbcol,
	const char *_cols[])
	: MFORM (_parent,_id)
{
	lookup = new CLIST_MAP;
	sub = new MFORM_CLIST(this);
	sub->setvscroll();
	int nbline = rem_getvarval ("vsize");
	if (nbline == -1){
		sub->max_height = 200;
	}else{
		sub->max_height = ((int)GetCharHeight()+2)*nbline;
	}
	sub->max_width = 600;
	max_width = 2600;
	max_height = 2200;
	New_form(sub);
	Setweightlast (1,1);
	cols = NULL;
	hdispo = NULL;
	hsign = NULL;
	dcs = NULL;
	
	const char *pt = rem_getvar ("hid");
	hid = NULL;
	if (pt != NULL) hid = strdup(pt);

	sethead (_nbcol,_cols);
}

PRIVATE void CLIST::freecols()
{
	if (cols != NULL){
		for (int i=0; i<nbcol; i++){
			free (cols[i]);
		}
		delete [] cols;
	}
	cols = NULL;
}

PUBLIC CLIST::~CLIST ()
{
	remadmin_delalive (this);
	freecols ();
	delete [] dcs;
	free (hdispo);
	free (hid);
	delete sub;
	delete lookup;
}
/*
	Parse a comma separated list of drawing context into dcs[].
	If the list is short, the last item is replicated to the end.
*/
static void clist_parsedcs (const char *dclist, DCNAME *dcs[], int nbcol)
{
	DCNAME *lastdc = NULL;
	char tmp[strlen(dclist)+1];
	int no = 0;
	while (*dclist != '\0' && no < nbcol){
		char *dst = tmp;
		while (*dclist != ',' && *dclist != '\0') *dst++ = *dclist++;
		if (*dclist == ',') dclist++;
		*dst = '\0';
		lastdc = defs_getdc_check (tmp);
		dcs[no++] = lastdc;
	}
	for (int i=no; i<nbcol; i++) dcs[i] = lastdc;
}

/*
	Add a new line
*/
PUBLIC void CLIST::New_item (const char *id, const char *items[])
{
	const char *dclist = rem_getvar("dcs");
	DCNAME **ptdcs = dcs;
	DCNAME *tbdcs[nbcol];
	if (dclist != NULL){
		clist_parsedcs (dclist,tbdcs,nbcol);
		ptdcs = tbdcs;
	}
	lookup->lk[id] = sub->nbc;
	for (int i=0; i<nbcol; i++){
		sub->New_buttonfill (id,items[i],MFORM_OPTFLAT,ptdcs[i]);
	}
	sub->Newline();
}

PUBLIC void CLIST::redolayout()
{
	if (layout_once && 0){
		int w,h;
		sub->GetSize (&w,&h);
		sub->dolayout (w,h,true);
	}else{
		gettop()->mainlayout();
	}
}

static void clist_mainlayout (void *data)
{
	CLIST *cl = (CLIST*)data;
	cl->redolayout();
}


/*
	Set the value of an existing line or add a new line
*/
PUBLIC void CLIST::Set_item (const char *id, const char *items[])
{
	bool redo=false;
	bool del = rem_getvarval("del")==1;		// Are we deleting this record
	CLIST_MAP_IT it = lookup->lk.find (id);
	if (it == lookup->lk.end()){
		// printf ("Set_item %s not found\n",id);
		if (!del) New_item (id,items);
		redo = true;
	}else{
		int i = it->second;
		// printf ("Set_item %s, first=%s, i=%d, nbcol=%d\n",id,it->first.c_str(),i,nbcol);
		if (del){
			int offset = nbcol+1;
			int offsety = sub->tbc[i]->height;	// We must relocate the fields
			int newnbc = sub->nbc-offset;
			for (int j=i; j<i+offset; j++) delete sub->tbc[j];
			for (int j=i; j<newnbc; j++){
				sub->tbc[j] = sub->tbc[j+offset];
				sub->tbc[j]->y -= offsety;
			}
			// Ajust the lookup
			for (CLIST_MAP_IT t=lookup->lk.begin(); t!=lookup->lk.end(); t++){
				if (t->second > it->second) t->second-= offset;
			}
			sub->nbc = newnbc;
			sub->drawitems (i,newnbc,true);
			// We must clear the end of the window
			int last = newnbc-offset;
			wxDC *subdc = sub->GetDC();
			subdc->SetPen (pen_white);
			subdc->SetBrush (brush_white);
			if (last < 0){
				// We clear the window, no items anymore
				subdc->Clear();
			}else{
				// We clear after the last
				MFORM_C *c = sub->tbc[last];
				int y = c->y + c->height;
				int w,h;
				sub->GetSize (&w,&h);
				subdc->DrawRectangle (0,y,w,h);
			}
			lookup->lk.erase(it);
		}else{
			const char *dclist = rem_getvar("dcs");
			DCNAME **ptdcs = dcs;
			DCNAME *tbdcs[nbcol];
			if (dclist != NULL){
				clist_parsedcs (dclist,tbdcs,nbcol);
				ptdcs = tbdcs;
			}
			for (int j=0; j<nbcol; j++){
				MFORM_C *n = sub->tbc[i+j];
				n->sets (items[j]);
				n->dcn = ptdcs[j];
				float w,h;
				dc->GetTextExtent (n->s,&w,&h);
				int wi = (int)w;
				if (n->width < wi) redo = true;
			}
			if (!redo){
				sub->drawitems (i,i+nbcol,true);
			}
		}
	}
	if (redo) remadmin_regalive (clist_mainlayout,this);
}

/*
	Initial and subsequent setup of the heading
*/
PUBLIC void CLIST::sethead (int _nbcol, const char *_cols[])
{
	freecols();
	nbcol = _nbcol;
	cols = new char *[_nbcol];
	const char *dclist = rem_getvar("dcs");
	delete [] dcs;
	dcs  = new DCNAME *[_nbcol];
	if (dclist != NULL){
		clist_parsedcs (dclist,dcs,_nbcol);
	}else{
		for (int i=0; i<_nbcol; i++) dcs[i] = NULL;
	}

	const char *pt = rem_getvar ("hdispo");
	if (pt != NULL){
		free (hdispo);
		hdispo = strdup(pt);
	}

	pt = rem_getvar ("hsign");
	if (pt != NULL){
		free (hsign);
		hsign = strdup(pt);
	}
	wxDC *dc = GetDC();
	int maxh = 0;
	for (int i=0; i<_nbcol; i++){
		const char *s = _cols[i];
		cols[i] = strdup(s);
		float w,h;
		dc->GetTextExtent (s,&w,&h);
		int wi = (int)w+5;
		int hi = (int)h;
		sub->mincols[i] = wi + (hid != NULL ? 10 : 0);
		if (hi > maxh) maxh = hi;
	}
	marge_haut = maxh + 5;
}

PUBLIC void CLIST::OnEvent (wxMouseEvent & event)
{
	if (hid != NULL && event.ButtonDown()){
		int y = (int)event.y;
		if (y < heady){
			int x = (int)event.x + hoffset;
			int start = 0;
			for (int i=0; i<nbcol; i++){
				int width = sub->colwidth[i];
				if (x >= start  && x < start+width){
					char tmp[10];
					sprintf (tmp,"%d",i);
					report_button (hid,false,&event,tmp);
					break;
				}
				start += width;
			}
		}
	}
}


/*
	Draw the heading of the list and the decoration around the list.
*/
PUBLIC void CLIST::drawhead()
{
	wxDC *dc = GetDC();
	// Clear the header area
	dc->SetPen (pen_back);
	dc->SetBrush (brush_back);
	int cwidth,cheight;
	GetSize (&cwidth,&cheight);
	dc->DrawRectangle (0,0,cwidth,marge_haut);

	int x = 8 - hoffset;
	float w,h;
	dc->GetTextExtent ("WWW",&w,&h);
	int y = (int)h+2;
	heady = y;
	const char *pts = hsign != NULL ? hsign : "---------------------------";
	for (int i=0; i<nbcol; i++, pts++){
		dc->SetPen (pen_black);
		dc->DrawText (cols[i],x,2);
		int width = sub->colwidth[i];
		int xw = x+width;
		int xw4 = xw-8;
		int x4 = x-4;
		// Draw the small icons at the end of the button
		if (*pts != '-'){
			int px2 = xw4-2;	// End
			int px1 = xw4-5;	// Center
			int px0 = xw4-8;	// Start
			int py0 = 3;
			int py1 = y-3;
			if (*pts == 'd'){
				dc->DrawLine (px0,py0,px1,py1);
				dc->DrawLine (px2,py0,px1,py1);
			}else if (*pts == 'u'){
				dc->DrawLine (px0,py1,px1,py0);
				dc->DrawLine (px2,py1,px1,py0);
			}
		}
		// Draw the edges of the button
		dc->DrawLine (x4,y,xw4,y);
		if (hid != NULL){
			dc->DrawLine (xw4,y,xw4,0);
			dc->SetPen (pen_light);
			dc->DrawLine (x4,y,x4,0);
			dc->DrawLine (x4,0,xw4,0);
		}
		x = xw;
	}
}
PUBLIC void CLIST::OnPaint()
{
	MFORM::OnPaint();
	drawhead();
}


PUBLIC int CLIST::setcurfield (
	const char *id_suffix,
	wxWindow *tbfocus[],
	int &nbfocus)
{
	// fprintf (stderr,"CLIST curfield :%s:\n",id_suffix);
	int ret = -1;
	for (int i=0; i<sub->nbc; i++){
		MFORM_C *c = sub->tbc[i];
		// fprintf (stderr,"clist cmp :%s: :%s:\n",c->id,id_suffix);
		if (strcmp(c->id,id_suffix)==0){
			ret = 0;
			int w,h;
			sub->GetSize (&w,&h);
			if (sub->hscroll != NULL) h -= 20;
			// fprintf (stderr,"sub voffset %d h %d y %d\n",sub->voffset,h,c->y);
			int charh2 = (int)GetCharHeight()*2;
			if (c->y < 0){
				sub->vmoveitems(sub->voffset+c->y);
			}else if (c->y + charh2 > h){
				sub->vmoveitems (sub->voffset+c->y-h+charh2);
			}
			// fprintf (stderr,"sub voffset %d h %d y %d\n",sub->voffset,h,c->y);
			tbfocus[nbfocus++] = sub;
			tbfocus[nbfocus++] = this;
			break;
		}
	}
	return ret;
}

PUBLIC void CLIST::setval(
	const char *id,
	const char *vals[],
	SETVAL_INFO &info)
{
	if (id[0] == '\0'){
		// Changing the header
		sethead (atoi(vals[0]),vals+1);
		drawhead();
	}else{
		Set_item (id,vals);
	}
}

PUBLIC void CLIST::stretch (
	int new_width,
	int)		// new_height: Not supported yet
				// Only horizontally strechable items so far
{
	// fprintf (stderr,"CLIST::stretch %d\n",new_width);
}

PUBLIC void CLIST::resizeitems (
	int diffx,
	int diffy)
{
	// fprintf (stderr,"CLIST::resizeitems %d %d\n",diffx,diffy);
	sub->resizeitems (diffx,diffy);
	int w,h;
	GetSize (&w,&h);
	SetSize (w+diffx,h+diffy);
}