
#include <../../nrnconf.h>

#include <InterViews/resource.h>
#include "oc2iv.h"
#include "classreg.h"
extern "C" {
double (*nrnpy_guigetval)(Object*);
void (*nrnpy_guisetval)(Object*, double);
int (*nrnpy_guigetstr)(Object*, char**);
}
#if HAVE_IV // to end of file except for a few small fragments.

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <ivstream.h>
#include <ctype.h>
#include <errno.h>

#include <InterViews/box.h>
#include <IV-look/kit.h>
#include <InterViews/event.h>
#include <InterViews/layout.h>
#include <InterViews/style.h>
#include <InterViews/background.h>
#include <InterViews/border.h>
#include <InterViews/dialog.h>
#include <InterViews/printer.h>
#include <InterViews/geometry.h>
#include <InterViews/transformer.h>
#include <InterViews/patch.h>
#include <InterViews/color.h>
#include <InterViews/telltale.h>
#include <InterViews/hit.h>

#include <InterViews/display.h>
#include "mymath.h"
#include "xmenu.h"
#include "datapath.h"
#include "ivoc.h"
#include "bndedval.h"
#include "objcmd.h"
#include "parse.h"
#include "utility.h"
#include "scenepic.h"

// The problem this overcomes is that the pick of an input handler normally
// succeeds for a keystroke only if the mouse is over one of the child
// handlers. We want it to succeed whenever it is inside the panel.
class PanelInputHandler : public InputHandler {
public:
	PanelInputHandler(Glyph*, Style*);
	virtual ~PanelInputHandler();
	virtual void pick(Canvas*, const Allocation&, int depth, Hit&);
	virtual void focus(InputHandler*);
	static bool has_old_focus() { bool old = sema_; sema_ = false; return old; }
	static void handle_old_focus();
private:
	static InputHandler* focus_;
	static bool sema_;
};

void handle_old_focus() { PanelInputHandler::handle_old_focus(); }

InputHandler* PanelInputHandler::focus_ = NULL;
bool PanelInputHandler::sema_ = false;

PanelInputHandler::PanelInputHandler(Glyph* g, Style* s) : InputHandler(g, s){
}
PanelInputHandler::~PanelInputHandler(){
}
void PanelInputHandler::pick(Canvas* c, const Allocation& a, int depth, Hit& h){
	const Event* e = h.event();
	if (focus_ && e && e->type() == Event::key && focus_->handler()) {
		h.target(depth, this, 0, focus_->handler());
	}else{
		InputHandler::pick(c, a, depth, h);
	}
}
void PanelInputHandler::focus(InputHandler* h){
	if (focus_ && focus_ != h) {
		if (h) {
			sema_ = true;
		}
		InputHandler* f = focus_;
		focus_ = NULL;
		f->focus_out();
	}
	focus_ = h;
	InputHandler::focus(h);
}

void PanelInputHandler::handle_old_focus() {
	if (focus_) {
//printf("handle_old_focus %p\n", focus_);
		sema_ = true;
		InputHandler* f = focus_;
		focus_ = NULL;
		f->focus_out();
	}
}

class ValEdLabel : public MonoGlyph {
public:
	ValEdLabel(Glyph*);
	virtual ~ValEdLabel();
	virtual void draw(Canvas*, const Allocation&)const;
	void state(bool);
	void tts(TelltaleState*);
private:
	static const Color* color_;
	bool state_;
	TelltaleState* tts_;
};

const Color* ValEdLabel::color_;

ValEdLabel::ValEdLabel(Glyph* g) : MonoGlyph(g) {
	state_ = false;
	if (!color_) {
		color_ = Color::lookup(Session::instance()->default_display(),
			"yellow");
		Resource::ref(color_);
	}
	tts_ = NULL;
}
	
ValEdLabel::~ValEdLabel() {
}
void ValEdLabel::draw(Canvas* c, const Allocation& a)const {
	if (state_) {
		c->fill_rect(a.left(), a.bottom(), a.right(), a.top(), color_);
	}
	MonoGlyph::draw(c, a);
}
void ValEdLabel::state(bool s) {
	if (state_ != s) {
		state_ = s;
		tts_->notify();
	}
}
	
void ValEdLabel::tts(TelltaleState* t) {
	tts_ = t; // not reffed
}

static void hoc_ivpanelPlace(Coord,Coord,int scroll = -1);

static String* xvalue_format;

#define Editor_Default		"DefaultValueEditor"
#define Editor_Stepper		"DefaultValueEditor"

extern "C" {

extern int units_on_flag_;
extern Symbol* hoc_get_symbol(const char*);
extern Symbol* hoc_get_last_pointer_symbol();
extern double* nrn_recalc_ptr(double*);
void hoc_notify_value() {
	Oc oc;
	oc.notify();
}

void hoc_xpanel() { IFGUI
	if (ifarg(1) && hoc_is_str_arg(1)) { // begin spec
		bool h = false;
		if (ifarg(2)) {
			h = (int)chkarg(2, 0, 1) ? true : false;
		}
                hoc_ivpanel(gargstr(1), h);
	}else{ // map
		int scroll = -1; // leave up to panel_scroll attribute
		if (ifarg(2)) {
			if (ifarg(3)) { scroll = (int)chkarg(3, -1, 1); }
			hoc_ivpanelPlace((Coord)*getarg(1),(Coord) *getarg(2), scroll);
		}else{
			if (ifarg(1)) { scroll = (int)chkarg(1, -1, 1); }
			hoc_ivpanelmap(scroll);
		}
	}
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}
        
void hoc_xmenu() { IFGUI
	bool add2menubar = false;
	char* mk = NULL;
	Object* pyact = NULL;
	int i = 2;
	if (ifarg(i)) {
		if (hoc_is_str_arg(i)) {
			mk = gargstr(i);
			++i;
		}else if (hoc_is_object_arg(i)) {
			pyact = *hoc_objgetarg(i);
			++i;
		}
		if (ifarg(i)) {
			add2menubar = int(chkarg(i, 0,1));
		}
	}
	if (ifarg(1)) {
		if (mk || pyact) {
			hoc_ivvarmenu(gargstr(1), mk, add2menubar, pyact);
		}else{
			hoc_ivmenu(gargstr(1), add2menubar);
		}
	}else{
		hoc_ivmenu((char *)0);
	}
ENDGUI
	hoc_ret();
        hoc_pushx(0.);
}

void hoc_xbutton() { IFGUI
        char *s1;
        s1 = gargstr(1);
        if (ifarg(2)) {
		if (hoc_is_object_arg(2)) {
			hoc_ivbutton(s1, NULL, *hoc_objgetarg(2));
		}else{
		        hoc_ivbutton(s1, gargstr(2));
		}
        }else{
	        hoc_ivbutton(s1, s1);
        }
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}

/*
xstatebutton("prompt",&var [,"action"])
   like xbutton, but var is set to 0 or 1 depending to match the 
   telltale state of the button
*/

void hoc_xstatebutton() { IFGUI

        char *s1, *s2 = (char *)0;
		
        s1 = gargstr(1);

	if (hoc_is_object_arg(2)) {
		hoc_ivstatebutton(NULL, s1, NULL, HocStateButton::PALETTE,
			*hoc_objgetarg(2), ifarg(3) ? *hoc_objgetarg(3):NULL);
	}else{
	        if (ifarg(3)) {
        	        s2 = gargstr(3);
	        }
	        hoc_ivstatebutton(hoc_pgetarg(2), s1, s2, HocStateButton::PALETTE);
	}
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}


/*
xcheckbox("prompt",&var [,"action"])
   like xbutton, but var is set to 0 or 1 depending to match the 
   telltale state of the button
*/

void hoc_xcheckbox() { IFGUI

        char *s1, *s2 = (char *)0;

        s1 = gargstr(1);

	if (hoc_is_object_arg(2)) {
		hoc_ivstatebutton(NULL, s1, NULL, HocStateButton::CHECKBOX,
			*hoc_objgetarg(2), ifarg(3) ? *hoc_objgetarg(3) : 0);
	}else{
	        if (ifarg(3)) {
        	        s2 = gargstr(3);
	        }
	        hoc_ivstatebutton(hoc_pgetarg(2),s1, s2, HocStateButton::CHECKBOX);
	}
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}

void hoc_xradiobutton() { IFGUI
        char *s1, *s2 = (char *)0;
	Object* po = NULL;
        bool activate = false;
        s1 = gargstr(1);
        if (ifarg(2)) {
	    if (hoc_is_object_arg(2)) {
		po = *hoc_objgetarg(2);
	    }else{
                s2 = gargstr(2);
        }
		if (ifarg(3)) {
			activate = (chkarg(3, 0, 1) != 0.);
	    }
        }else{
        	s2 = s1;
        }
	if (po) {
	        hoc_ivradiobutton(s1, NULL, activate, po);
	}else{
	        hoc_ivradiobutton(s1, s2, activate);
	}
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}

static void hoc_xvalue_helper() { IFGUI //prompt, variable, deflt,action,canrun,usepointer
        char *s1, *s2, *s3;
	double* ptr2 = NULL; /*allow variable arg2 to be double* */
	Object* pyvar = NULL;
	Object* pyact = NULL;
	s2 = s3 = NULL;
        s1 = gargstr(1);
        if (ifarg(2)) {
		if (hoc_is_object_arg(2)) {
			pyvar = *hoc_objgetarg(2);
		}else if (hoc_is_pdouble_arg(2)) {
			ptr2 = hoc_pgetarg(2);
		}else{
	                s2 = gargstr(2);
		}
        }else{
                s2 = s1;
        }
	bool deflt = false;
        if (ifarg(3) && *getarg(3)) {
		if (*getarg(3) == 2.) {
			if (pyvar) {
				hoc_ivvalue_keep_updated(s1, NULL, pyvar);
			}else{
				hoc_ivvalue_keep_updated(s1, s2);
			}
			return;
		}
		deflt=true;
	}
        bool canRun=false, usepointer=false; 
        if (ifarg(4)) {
		if (hoc_is_object_arg(4)) {
			pyact = *hoc_objgetarg(4);
		}else{
	                s3 = gargstr(4);
		}
                if (ifarg(5) && *getarg(5)) {
                        canRun=true;
                }
                if (ifarg(6) && *getarg(6)) {
                        usepointer=true;
                }
        }
	hoc_ivvaluerun_ex(s1, s2,ptr2,pyvar, s3,pyact, deflt, canRun, usepointer);

ENDGUI
}

void hoc_xfixedvalue() { IFGUI //prompt, variable, deflt,action,canrun,usepointer
        char *s1, *s2;
        s1 = gargstr(1);
        if (ifarg(2)) {
                s2 = gargstr(2);
        }else{
                s2 = s1;
        }
	bool deflt = false;
        if (ifarg(3) && *getarg(3)) {
		deflt=true;
	}
	bool usepointer = false;
        if (ifarg(4) && *getarg(4)) {
		usepointer = true;
	}
        hoc_ivfixedvalue(s1, s2, deflt, usepointer);
                 
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}

static void hoc_xpvalue_helper() { IFGUI //prompt,variable,deflt,action,canrun
        char *s1, *s3;
	double* pd;
	HocSymExtension* extra = NULL;
	Symbol* sym;
        s1 = gargstr(1);
        if (ifarg(2)) {
                pd = hoc_pgetarg(2);
		sym = hoc_get_last_pointer_symbol();
        }else{
                pd = hoc_val_pointer(s1);
		sym = hoc_get_symbol(s1);
        }
	if (sym) {
		extra = sym->extra;
	}
	bool deflt = false;
        if (ifarg(3) && *getarg(3)) {
		deflt=true;
	}
        if (ifarg(4)) {
                s3 = gargstr(4);
                bool canRun=false; 
                if (ifarg(5) && *getarg(5)) {
                        canRun=true;
                }
                hoc_ivpvaluerun(s1,pd,s3,deflt,canRun, extra);
        }else{
                hoc_ivpvalue(s1, pd, deflt, extra);
        }
ENDGUI
}

void hoc_xvalue() {
	hoc_xvalue_helper();
        hoc_ret();
        hoc_pushx(0.);
}

void hoc_xpvalue() {
	hoc_xpvalue_helper();
        hoc_ret();
        hoc_pushx(0.);
}

void hoc_xlabel() { IFGUI
	char* s1;
	s1 = gargstr(1);
	hoc_ivlabel(s1);
ENDGUI
	hoc_ret();
	hoc_pushx(0.);
}

void hoc_xvarlabel() { IFGUI
	if (hoc_is_object_arg(1)) {
		hoc_ivvarlabel(NULL, *hoc_objgetarg(1));
	}else{
		hoc_ivvarlabel(hoc_pgargstr(1));
	}
ENDGUI
	hoc_ret();
	hoc_pushx(0.);
}

// ZFM modified to add vertical vs. horizontal
void hoc_xslider() { IFGUI
	float low=0, high=100;
	float resolution=1;
	int nsteps = 10;
	char* send = NULL;
	Object* pysend = NULL;
	double* pval = NULL;
	Object* pyvar = NULL;
	bool vert = 0;
	if (ifarg(3)) {
		low = *getarg(2);
		high = *getarg(3);
		resolution = (high - low)/100.;
	}
	int iarg = 4;
	if (ifarg(iarg)) {
		if (hoc_is_str_arg(iarg)) {
			send = gargstr(4);
			++iarg;
		}else if (hoc_is_object_arg(iarg)) {
			pysend = *hoc_objgetarg(iarg);
			++iarg;
		}
	}
	if (ifarg(iarg)) {
	        vert = int(chkarg(iarg,0,1));
        }
	bool slow = false;
	if (ifarg(++iarg)) {
		slow = int(chkarg(iarg, 0, 1));
	}
	if (hoc_is_object_arg(1)) {
		pyvar = *hoc_objgetarg(1);
	}else{
		pval = hoc_pgetarg(1);
	}
	hoc_ivslider(pval, low, high, resolution, nsteps, send, vert, slow, pyvar, pysend);
ENDGUI
        hoc_ret();
        hoc_pushx(0.);
}

} /* end extern "C" */

class HocButton : public Button {
public:
	HocButton(const char*, Glyph*, Style*, TelltaleState*, Action*);
	virtual ~HocButton();
	static HocButton* instance(const char*, Action*);
	virtual void print(Printer*, const Allocation&) const;
private:
	Glyph* l_;
};
HocButton::HocButton(const char* text, Glyph* g, Style* s, TelltaleState* t, Action* a)
   : Button(g, s, t, a){
	l_ = WidgetKit::instance()->label(text);
	l_->ref();
}
HocButton::~HocButton() { Resource::unref(l_); }
HocButton* HocButton::instance(const char* s, Action* a) {
	Button* b = WidgetKit::instance()->push_button(s, a);
	b->ref();
	HocButton* hb = new HocButton(
		s,
		b->body(),
		b->style(),
		b->state(),
		b->action()
	);
	b->unref();
	return hb;
}
void HocButton::print(Printer* pr, const Allocation& a) const {
	l_->print(pr, a);
}

implementPtrList(HocPanelList, HocPanel);
static HocPanelList* hoc_panel_list;
static HocPanel* curHocPanel;
static HocValEditor* last_fe_constructed_;
static void checkOpenPanel() {
	if (!curHocPanel) {
		hoc_execerror("No panel is open", NULL);
	}
}

declarePtrList(HocMenuList,HocMenu)
implementPtrList(HocMenuList,HocMenu)
/*static*/ class MenuStack {
public:
	bool isEmpty() { return l_.count() == 0; }
	void push(HocMenu* m);
	void pop() {if (l_.count()) {l_.item(0)->unref(); l_.remove(0); }}
	Menu* top() {return (l_.count()) ? l_.item(0)->menu() : NULL; }
	HocItem* hoc_item() {return (l_.count()) ? l_.item(0) : NULL; }
	void clean();
private:
	HocMenuList l_;
};
void MenuStack::push(HocMenu* m) {
	m->ref();
	l_.prepend(m);
}
void MenuStack::clean() {
	for (long i = 0; i < l_.count(); i++) {
		l_.item(i)->unref();
	}
	l_.remove_all();
}
static MenuStack* menuStack;
static Menu* hocmenubar;

class OcTelltaleGroup : public TelltaleGroup {
public:
	OcTelltaleGroup();
	virtual ~OcTelltaleGroup();
	virtual void update(TelltaleState*);
	virtual void remove(TelltaleState*);
	virtual void restore();
private:
	TelltaleState* previous_;
	TelltaleState* current_;
};

OcTelltaleGroup::OcTelltaleGroup() {
	previous_ = NULL;
	current_ = NULL;
}	
OcTelltaleGroup::~OcTelltaleGroup() {
}
void OcTelltaleGroup::update(TelltaleState* t) {
	if (t != current_ && t->test(TelltaleState::is_chosen)) {
		previous_ = current_;
		current_ = t;
	}
	TelltaleGroup::update(t);
}	
void OcTelltaleGroup::remove(TelltaleState* t) {
	if (previous_ == t) {
		previous_ = NULL;
	}
	if (current_ == t) {
		current_ = NULL;
	}
	TelltaleGroup::remove(t);
}
void OcTelltaleGroup::restore() {
	if (previous_) {
		previous_->set(TelltaleState::is_chosen, true);
	}else if (current_){
		TelltaleGroup::update(current_);
		current_->set(TelltaleState::is_chosen, false);
		current_ = NULL;
	}
}	

class HocRadioAction : public HocAction {
public:
	HocRadioAction(const char* action, OcTelltaleGroup*, Object* pyact = NULL);
	virtual ~HocRadioAction();
	virtual void help();
private:
	OcTelltaleGroup* tg_;
};

HocRadioAction::HocRadioAction(const char* action, OcTelltaleGroup* tg, Object* pyact)
     : HocAction(action, pyact)
{
	tg_ = tg;
	Resource::ref(tg_);
}

HocRadioAction::~HocRadioAction() {
	Resource::unref(tg_);
}
void HocRadioAction::help() {
	tg_->restore();
	HocAction::help();
}

/*static*/ class HocRadio {
public:
	HocRadio();
	virtual ~HocRadio();
	
	OcTelltaleGroup* group() { return g_; }
	void start();
	void stop();
private:
	OcTelltaleGroup* g_;
};

HocRadio::HocRadio() { g_ = NULL; }
HocRadio::~HocRadio() {Resource::unref(g_);}
void HocRadio::start() {
	Resource::unref(g_);
	g_ = new OcTelltaleGroup();
	g_->ref();
}

void HocRadio::stop() {
	Resource::unref(g_);
	g_ = NULL;
}

static HocRadio* hoc_radio;

void hoc_ivpanel(const char* name, bool h) {
	if (!hoc_radio) {
		hoc_radio = new HocRadio();
	}
	if (curHocPanel) {
		fprintf(stderr, "%s not closed\n", curHocPanel->getName());
		if (menuStack) {
			menuStack->clean();
		}
		curHocPanel->unref();
		curHocPanel = NULL;
		hoc_execerror("Didn't close the previous panel", NULL);
	}else{
		curHocPanel = new HocPanel(name, h);
		curHocPanel->ref();
	}
	hoc_radio->stop();
}

void hoc_ivpanelmap(int scroll) {
	checkOpenPanel();
	curHocPanel->map_window(scroll);
	curHocPanel->unref();
	curHocPanel = NULL;
	if (menuStack && !menuStack->isEmpty()) {
fprintf(stderr, "%s menu not closed\n", menuStack->hoc_item()->getStr());
		menuStack->clean();
		hoc_execerror("A menu is still open", 0);
	}
	hoc_radio->stop();
}

void hoc_ivpanelPlace(Coord left, Coord bottom, int scroll) {
	checkOpenPanel();
	curHocPanel->left_ = left;
	curHocPanel->bottom_ = bottom;
	hoc_ivpanelmap(scroll);
}

void hoc_ivbutton(const char* name, const char* action, Object* pyact) {
	checkOpenPanel();
	hoc_radio->stop();
	if (menuStack && ! menuStack->isEmpty()) {
		menuStack->top()->append_item(curHocPanel->menuItem(name, action, false, pyact));
	}else{
		curHocPanel->pushButton(name, action, false, pyact);
	}
}

void hoc_ivstatebutton(double* pd, const char* name, const char* action, int style, Object* pyvar, Object* pyact) {
	checkOpenPanel();
	hoc_radio->stop();
	if (menuStack && ! menuStack->isEmpty()) {
		menuStack->top()->append_item(curHocPanel->menuStateItem(pd, name, action, pyvar, pyact));
	}else{
		curHocPanel->stateButton(pd, name, action, style, pyvar, pyact);
	}
}

void hoc_ivradiobutton(const char* name, const char* action, bool activate, Object* pyact) {
	checkOpenPanel();
	if (!hoc_radio->group()) {
		hoc_radio->start();
	}
	if (menuStack && ! menuStack->isEmpty()) {
		menuStack->top()->append_item(curHocPanel->menuItem(name, action, activate, pyact));
	}else{
		curHocPanel->pushButton(name, action, activate, pyact);
	}
}

void hoc_ivmenu(const char* name, bool add2menubar) {
	if (!menuStack) {
		menuStack = new MenuStack();
	}
	checkOpenPanel();
	hoc_radio->stop();
	if (name) {
		HocMenu* m = curHocPanel->menu(name, add2menubar);
		menuStack->push(m);
	}else{
		curHocPanel->itemAppend("xmenu()");
		menuStack->pop();
	}
}

void hoc_ivvarmenu(const char* name, const char* action, bool add2menubar, Object* pyvar) {
	if (!menuStack) {
		menuStack = new MenuStack();
	}
	checkOpenPanel();
	hoc_radio->stop();
	HocMenu* m = curHocPanel->menu(name, add2menubar);
	HocMenuAction* hma = new HocMenuAction(action, pyvar, m);
	m->item()->action(hma);
}

void hoc_ivvalue_keep_updated(const char* name, const char* variable, Object* pyvar) {
	checkOpenPanel();
	hoc_radio->stop();
	Symbol* s = hoc_get_symbol(variable);
	curHocPanel->valueEd(name, variable, NULL, false,
		 hoc_val_pointer(variable), false, true, (s?s->extra:NULL), pyvar);
}

void hoc_ivvalue(const char* name, const char* variable, bool deflt, Object* pyvar) {
        hoc_ivvaluerun( name, variable, NULL, deflt, false, false);
}
                
void hoc_ivfixedvalue(const char* name, const char* variable, bool deflt, bool usepointer) {
	hoc_ivvaluerun(name, variable, NULL, deflt, false, usepointer);
}
                
void hoc_ivpvalue(const char* name, double* pd, bool deflt, HocSymExtension* extra) {
        hoc_ivpvaluerun( name, pd, 0, deflt, false, extra);
}
                
void hoc_ivvaluerun(const char* name, const char* variable, const char* action,
	bool deflt, bool canRun, bool usepointer, Object* pyvar, Object* pyact)
{
	hoc_ivvaluerun_ex(name, variable, NULL, pyvar, action, pyact,
		deflt, canRun, usepointer);
}

void hoc_ivvaluerun_ex(CChar* name,
        CChar* variable, double* pvar, Object* pyvar,
        CChar* action, Object* pyact,
        bool deflt, bool canrun, bool usepointer, HocSymExtension* extra)
{
	checkOpenPanel();
	hoc_radio->stop();
	Symbol* s = NULL;
	if (!pvar && !pyvar) {
		s = hoc_get_symbol(variable);
		if (usepointer) {
			pvar = hoc_val_pointer(variable);
		}
	}
	HocSymExtension* xtra = extra;
	if (!xtra) { s ? s->extra : NULL; }
	curHocPanel->valueEd(name, variable, action, canrun,
		pvar, deflt, false, xtra, pyvar, pyact);
}

void hoc_ivpvaluerun(const char* name, double* pd, const char* action,
	bool deflt, bool canRun, HocSymExtension* extra){
	checkOpenPanel();
	hoc_radio->stop();
	curHocPanel->valueEd(name, 0, action, canRun, pd, deflt, false, extra);
}

void hoc_ivlabel(const char* s) {
	checkOpenPanel();
	hoc_radio->stop();
	curHocPanel->label(s);
}

void hoc_ivvarlabel(char** s, Object* pyvar) {
	checkOpenPanel();
	hoc_radio->stop();
	curHocPanel->var_label(s, pyvar);
}

// ZFM added vert
void hoc_ivslider(double* pd, float low, float high,
	float resolution, int nsteps, const char* s, bool vert,
	bool slow, Object* pyvar, Object* pyact) {
	checkOpenPanel();
	curHocPanel->slider(pd, low, high, resolution, nsteps, s, vert, slow, pyvar, pyact);
}

static char* hideQuote(const char* s) {
	static char buf[200];
	const char* cp1;
	char* cp2;
	
	cp2 = buf;
	if (s) for (cp1=s; *cp1; cp1++, cp2++) {
		if (*cp1 == '"') {
			*cp2++ = '\\';
		}
		*cp2 = *cp1;
	}
	*cp2 = '\0';
	return buf;
}

static void saveMenuFile() {
}

void HocPanel::save_all(ostream&) {
	if (!hoc_panel_list) return;

	long i, cnt;

	HocDataPaths* data_paths = new HocDataPaths();
	cnt = hoc_panel_list->count();
	if (hoc_panel_list) for (i = 0; i < cnt; ++i) {
		hoc_panel_list->item(i)->data_path(data_paths, true);
	}				
	data_paths->search();
	if (hoc_panel_list) for (i = 0; i < cnt; ++i) {
		hoc_panel_list->item(i)->data_path(data_paths, false);
	}				
	delete data_paths;
}

void HocPanel::update_ptrs() {
	if (!hoc_panel_list) return;
	int i, j;
	for (i=0; i < hoc_panel_list->count(); ++i) {
		HocUpdateItemList& ul = hoc_panel_list->item(i)->elist_;
		for (j=0; j < ul.count(); ++j) {
			ul.item(j)->update_ptrs();
		}		
	}
}

#if MAC
void HocPanel::mac_menubar() {
	int i = 1;
	int mindex = 0;
	printf("menubar 0 %s\n", getName());
	mac_menubar(mindex, i, 0);
}

void HocPanel::mac_menubar(int& mindex, int& i, int m) {
	int mr;
	int mi = 0;
	while (i < ilist_.count()) {
		mr = ilist_.item(i)->mac_menubar(mindex, m, mi);
		++i;
		++mi;
		if (mr > m) {
			mac_menubar(mindex, i, mr);
		}else if (mr < m) {
			return;
		}
	}
	return;
}
#endif

void HocPanel::map_window(int scroll) {
	// switch to scrollbox if too many items
	static GlyphIndex maxcnt = -1;
	if (1 || maxcnt == -1) {
		maxcnt = 12;
		Style* s = WidgetKit::instance()->style();
		s->find_attribute("panel_scroll", maxcnt);
	}
	if ((scroll == -1 && box_->count() > maxcnt) || scroll == 1) {
		LayoutKit& lk = *LayoutKit::instance();
		WidgetKit& wk = *WidgetKit::instance();
		ScrollBox* vsb = lk.vscrollbox(box_->count());
		while(box_->count()) {
			vsb->append(box_->component(0));
			box_->remove(0);
		}
		box_->append(
			lk.hbox(
				vsb,
				lk.hspace(4),
				wk.vscroll_bar(vsb)
			)
		);
	}
			
	PrintableWindow* w = OcGlyph::make_window(left_, bottom_);
	w->style(new Style(WidgetKit::instance()->style()));
	w->style()->attribute("name", getName());
	w->map();
}

//HocPanel

implementPtrList(HocUpdateItemList,HocUpdateItem);
implementPtrList(HocItemList,HocItem);

static void var_freed(void* pd, int size) {
	if (hoc_panel_list) for (long i = hoc_panel_list->count() - 1; i >= 0; --i) {
		hoc_panel_list->item(i)->check_valid_pointers(pd, size);
	}				
}

HocPanel::HocPanel(const char* name, bool h) : OcGlyph(NULL) {
	LayoutKit& lk = *LayoutKit::instance();
	WidgetKit& wk = *WidgetKit::instance();
	horizontal_ = h;
	hocmenubar = NULL;
	if (h) {
		box_ = lk.hbox();
	}else{
		box_ = lk.vbox();
	}
	box_->ref();
	body(ih_ = new PanelInputHandler(
	  new Background(
	    new Border(
	      lk.margin(
		lk.hflexible(box_, fil, 0), 3
	      ),
	      wk.foreground()
		 ),
		 wk.background()
	  )
	 , wk.style())
	);
	if (!hoc_panel_list) {
		hoc_panel_list = new HocPanelList;
		Oc oc;
		oc.notify_freed(var_freed);
	}
	hoc_panel_list->append(this);
	item_append(new HocItem(name));
	left_ = -1000.;
	bottom_ = -1000.;
	errno = 0;
}

HocPanel::~HocPanel() {
	long i;
	box_->unref();
	for (i = 0; i < ilist_.count(); i++) {
		ilist_.item(i)->HocItem::unref();
	}
	for (i = 0; i < elist_.count(); i++) {
		elist_.item(i)->HocItem::unref();
	}
	for (i=0; i < hoc_panel_list->count(); ++i) {
		if (hoc_panel_list->item(i) == this) {
			hoc_panel_list->remove(i);
			break;
		}
	}
	ilist_.remove_all();
	elist_.remove_all();
//	printf("~HocPanel\n");
}

//HocUpdateItem
HocUpdateItem::HocUpdateItem(const char* name, HocItem* hi) : HocItem(name, hi) {}
HocUpdateItem::~HocUpdateItem() {
	HocPanel::keep_updated(this, false);
}
void HocUpdateItem::update_hoc_item() {}
void HocUpdateItem::check_pointer(void*, int) {}void HocUpdateItem::data_path(HocDataPaths*, bool) {}

// ones that get updated on every doEvents()
HocUpdateItemList* HocPanel::update_list_;

void HocPanel::keep_updated() {
	static int cnt = 0;
	if (update_list_ && (++cnt%10 == 0)) {
		long i, cnt = update_list_->count();
		if (cnt) for(i=0; i < cnt; ++i) {
			update_list_->item(i)->update_hoc_item();
		}
	}
}
void HocPanel::keep_updated(HocUpdateItem* hui, bool add) {
	if (!update_list_) {
		update_list_ = new HocUpdateItemList();
	}
	if (add) {
		update_list_->append(hui);
	}else{
		for (long i=0; i < update_list_->count(); ++i) {
			if (update_list_->item(i) == hui) {
				update_list_->remove(i);
				break;
			}
		}
	}
}

void HocPanel::paneltool(const char* name, const char* proc, const char* selact, ScenePicker* sp, Object* pycallback, Object* pyselact) {
	HocCommand* hc = pycallback ? new HocCommand(pycallback) : new HocCommand(proc);
	HocCommandTool* hct = new HocCommandTool(hc);
	HocAction* ha = NULL;
	if (selact || pyselact) {
		ha = new HocAction(selact, pyselact);
	}
	if (curHocPanel && (!menuStack || menuStack->isEmpty())) {
		Button* b = sp->radio_button(name, hct, ha);
		curHocPanel->box()->append(b);
	}else{
		sp->add_radio_menu(gargstr(1), hct, ha);
	}
}

void HocPanel::itemAppend(const char* str) {
	item_append(new HocItem(str));
}

PolyGlyph* HocPanel::box() {
//	return (PolyGlyph*)(((MonoGlyph*)body())->body());
	return box_;
}

const char* HocPanel::getName() {
	return ilist_.item(0)->getStr();
}

HocItem* HocPanel::hoc_item() {
	return ilist_.item(0);
}

void HocPanel::pushButton(const char* name, const char* action, bool activate, Object* pyact) {
  if (hoc_radio->group()) {
	HocRadioAction* a = new HocRadioAction(action, hoc_radio->group(), pyact);
	Button* b = WidgetKit::instance()->radio_button(hoc_radio->group(),
                name, a);
        box()->append(b);
        item_append(new HocRadioButton(name, a, hoc_item()));
	if (activate) {
		TelltaleState* tts = b->state();
		tts->set(TelltaleState::is_chosen, true);
		hoc_radio->group()->update(tts);
	}
  }else{
	HocAction* a = new HocAction(action, pyact);
        box()->append(WidgetKit::instance()->push_button(name, a));
        item_append(new HocPushButton(name, a, hoc_item()));
  }
}

HocPushButton::HocPushButton(const char* name, HocAction* a, HocItem* hi) : HocItem(name, hi) {
	a_ = a;
	Resource::ref(a);
	a->hoc_item(this);
}
HocPushButton::~HocPushButton() {
	Resource::unref(a_);
}
void HocPushButton::write(ostream& o) {
	char buf[200];
        sprintf(buf, "xbutton(\"%s\",\"%s\")", getStr(), hideQuote(a_->name()));
	o << buf << endl;
}

#if MAC
int HocPushButton::mac_menubar(int&, int m, int mi) {
	printf("button item %d in menu %d \"%s\", \"%s\"\n", mi, m, getStr(), hideQuote(a_->name()));
	return m;
}
#endif

HocRadioButton::HocRadioButton(const char* name, HocRadioAction* a, HocItem* hi) : HocItem(name, hi) {
	a_ = a;
	Resource::ref(a);
	a->hoc_item(this);
}
HocRadioButton::~HocRadioButton() {
	Resource::unref(a_);
}
void HocRadioButton::write(ostream& o) {
	char buf[200];
        sprintf(buf, "xradiobutton(\"%s\",\"%s\")", getStr(), hideQuote(a_->name()));
	o << buf << endl;
}

#if MAC
int HocRadioButton::mac_menubar(int&, int m, int mi) {
	printf("radio item %d in menu %d \"%s\", \"%s\"\n", mi, m, getStr(), hideQuote(a_->name()));
	return m;
}
#endif

void HocPanel::label(const char* name) {
	box()->append(
	    LayoutKit::instance()->margin(
		   WidgetKit::instance()->label(name), 3
            )				       
        );
	item_append(new HocLabel(name));
}

void HocPanel::var_label(char** name, Object* pyvar) {
	HocVarLabel* l = new HocVarLabel(name, box(), pyvar);
	item_append(l);
	elist_.append(l);
	l->ref();
}

// ZFM added vert
void HocPanel::slider(double* pd, float low, float high,
  float resolution, int nsteps,
  const char* send, bool vert, bool slow, Object* pyvar, Object* pysend) {
     OcSlider* s = new OcSlider(pd, low, high, resolution, nsteps, send, vert,
     	slow, pyvar, pysend);
	LayoutKit* lk = LayoutKit::instance();
	WidgetKit* wk = WidgetKit::instance();
	if (slow) {
		wk->begin_style("SlowSlider");
	}
      if (vert) {
	box()->append(
	    lk->hflexible(
		WidgetKit::instance()->vscroll_bar(s->adjustable())
	  )
	);
      } else {
	box()->append(
	    lk->hflexible(
		WidgetKit::instance()->hscroll_bar(s->adjustable())
	  )
	);
      }	
	if (slow) {
		wk->end_style();
	}
	item_append(s);
	elist_.append(s);
	s->ref();
}

HocMenu* HocPanel::menu(const char* name, bool add2menubar) {
	WidgetKit* wk = WidgetKit::instance();
	Menu* m = wk->pulldown();
	MenuItem* mi;
	HocMenu* hm;
	if (menuStack->isEmpty()) {
		Menu* m0;
		if (!add2menubar) {
			hocmenubar = NULL;
		}
		if (hocmenubar) {
			m0 = hocmenubar;
		}else{
			m0 = wk->menubar();
			hocmenubar = m0;
	 		LayoutKit* lk = LayoutKit::instance();
			box()->append(lk->hbox(m0,lk->hglue()));
		}
		mi = wk->menubar_item(name);
		m0->append_item(mi);
		hm = new HocMenu(name, m, mi, hoc_item(), add2menubar);
	}else{
		mi = K::menu_item(name);
		menuStack->top()->append_item(mi);
		hm = new HocMenu(name, m, mi, menuStack->hoc_item());
	}
	item_append(hm);
	mi->menu(m);
	return hm;
}

MenuItem* HocPanel::menuItem(const char* name, const char* act, bool activate, Object* pyact) {
	MenuItem* mi;
  if (hoc_radio->group()) {
	HocRadioAction* a = new HocRadioAction(act, hoc_radio->group(), pyact);
	mi = K::radio_menu_item(hoc_radio->group(),	name);
	mi->action(a);
	item_append(new HocRadioButton(name, a, menuStack->hoc_item()));
	if (activate) {
		TelltaleState* tts = mi->state();
		tts->set(TelltaleState::is_chosen, true);
		hoc_radio->group()->update(tts);
	}
  }else{
	HocAction* a = new HocAction(act, pyact);
	mi = K::menu_item(name);
	mi->action(a);
	item_append(new HocPushButton(name, a, menuStack->hoc_item()));
  }
	return mi;
}

HocMenu::HocMenu(const char* name, Menu* m, MenuItem* mi, HocItem* hi, bool add2menubar) : HocItem(name, hi) {
	menu_ = m;
	mi_ = mi;
	add2menubar_ = add2menubar;
	m->ref();
}
HocMenu::~HocMenu() {
	menu_->unref();
}
void HocMenu::write(ostream& o) {
	char buf[200];
	sprintf(buf, "xmenu(\"%s\", %d)", getStr(), add2menubar_);
	o << buf << endl;
}

#if MAC
int HocMenu::mac_menubar(int& mindex, int m, int mi) {
	++mindex;
	printf("menu %d is item %d in %d %s\n", mindex, mi, m, getStr());
	return mindex;
}
#endif

static Coord xvalue_field_size;

void HocPanel::valueEd(const char* prompt, Object* pyvar, Object* pyact,
	bool canrun, bool deflt, bool keep_updated)
{
	valueEd(prompt, NULL, NULL, canrun, NULL, deflt, keep_updated, NULL, pyvar, pyact);
}

void HocPanel::valueEd(const char* name, const char* variable, const char* action, bool canrun,
	double* pd, bool deflt, bool keep_updated, HocSymExtension* extra,
	Object* pyvar, Object* pyact) {
	HocValAction* act;
	if (pyact || action) {
		act = new HocValAction(action, pyact);
	}else{
		act = new HocValAction("");
	}
	ValEdLabel* vel;
	float* limits = 0;
	if (extra && extra->parmlimits) {
		limits = extra->parmlimits;
	}
	if (extra && extra->units && units_on_flag_) {
		char nu[256];
		sprintf(nu, "%s (%s)", name, extra->units);
		vel = new ValEdLabel(WidgetKit::instance()->label(nu));
	}else{
		vel = new ValEdLabel(WidgetKit::instance()->label(name));
	}
	Button* prompt;
	if (canrun) {
		prompt = WidgetKit::instance()->default_button(vel, act);
	}else{
		prompt = WidgetKit::instance()->push_button(vel, act);
	}
	vel->tts(prompt->state());
	HocValEditor* fe;
	Button* def;
	if (deflt) {
		HocDefaultValEditor* dve = new HocDefaultValEditor(
			name, variable, vel,
			act, pd, canrun, hoc_item(), pyvar);
		def = dve->checkbox();
		fe = dve;
	}else if (keep_updated) {
		fe = new HocValEditorKeepUpdated(name, variable, vel,
			act, pd, hoc_item(), pyvar);
	}else{
		fe = new HocValEditor(name, variable, vel,
			act, pd, canrun, hoc_item(), pyvar);
	}
	ih_->append_input_handler(fe->field_editor());
	elist_.append(fe);
	fe->ref();
	act->setFieldSEditor(fe); //so button can change the editor
	LayoutKit* lk = LayoutKit::instance();
// from mike_neubig_ivoc_xmenu
        float fct;
       	Style* s = WidgetKit::instance()->style();
        if(!s->find_attribute("stepper_size", fct)){
		fct = 20;
	}
	if (deflt) {
	        box()->append(lk->hbox(
        		lk->vcenter(prompt),
        		lk->vcenter(def),
			lk->vcenter(lk->h_fixed_span(fe->field_editor(), xvalue_field_size)),
			lk->vcenter(lk->fixed(fe->stepper(), (int) fct, (int) fct ))
		));
	}else{
		box()->append(lk->hbox(
		 prompt,
		 lk->h_fixed_span(fe->field_editor(), xvalue_field_size),
		 (fe->stepper()?
		    lk->fixed(fe->stepper(), int(fct), int(fct)) : NULL)
		));
	}
	item_append(fe);
	if (limits) {
		fe->setlimits(limits);
	}
	last_fe_constructed_ = fe;
}

void HocPanel::save(ostream& o) {
	o << "{" << endl;
	write(o);
	o << "}" << endl;
}

void HocPanel::write(ostream& o) {
	Oc oc;
	char buf[200];
	long i;
//	o << "xpanel(\"" << getName() << "\")" << endl;
	sprintf(buf, "xpanel(\"%s\", %d)", getName(), horizontal_);
	o << buf << endl;
	for (i = 1; i < ilist_.count(); i++) {
		ilist_.item(i)->write(o);
	}
	if (has_window()) {
		sprintf(buf, "xpanel(%g,%g)",
			window()->save_left(), window()->save_bottom());
		o << buf << endl;
	}else{
		o << "xpanel()" << endl;
	}
}

void HocPanel::item_append(HocItem* hi) {
	hi->ref();
	ilist_.append(hi);
}

//HocItem
HocItem::HocItem(const char* str, HocItem* hi) : str_(str){
	help_parent_ = hi;
}
HocItem::~HocItem() {
//	printf("~HocItem %s\n", str_.string());
}
void HocItem::write(ostream& o) {
	o << str_.string() << endl;
}

#if MAC
int HocItem::mac_menubar(int&, int m, int mi) {
	if (strcmp(getStr(), "xmenu()") == 0) {
		printf("end menu %d\n", m);
		return -1;
	}else{
		printf("invalid menuitem %s\n", getStr());
	}
	return m;
}
#endif

const char* HocItem::getStr() {
	return str_.string();
}

void HocItem::help_parent(HocItem* hi) {
	help_parent_ = hi;	//not reffed
}

void HocItem::help(const char* child) {
	const char* c1;
	char buf[200], *c2 = buf;
	char path[512];
	for (c1 = getStr(); *c1; ++c1) {
		if (isalnum(*c1)) {
			*c2++ = *c1;
		}
	}
	*c2 = '\0';
	if (child) {
		sprintf(path, "%s %s", child, buf);
	}else{
		strcpy(path, buf);
	}
	if (help_parent_) {
		help_parent_->help(path);
	}else{
		Oc::help(path);
	}
}

//HocLabel
HocLabel::HocLabel(const char* s) : HocItem(s) {}
HocLabel::~HocLabel() {}
void HocLabel::write(ostream& o) {
	char buf[200];
	sprintf(buf, "xlabel(\"%s\")", hideQuote(getStr()));
	o << buf << endl;
}

#if 0
extern "C" {
extern void purify_watch_rw_4(char**);
}
#endif

//HocVarLabel
HocVarLabel::HocVarLabel(char** cpp, PolyGlyph* pg, Object* pyvar) : HocUpdateItem("") {
//purify_watch_rw_4(cpp);
	pyvar_ = pyvar;
	cpp_ = cpp;
	cp_ = NULL;
	if (pyvar_) {
		hoc_obj_ref(pyvar_);
		(*nrnpy_guigetstr)(pyvar_, &cp_);
	}else{
		cp_ = *cpp_;
	}
	variable_ = NULL;
	p_ = new Patch(LayoutKit::instance()->margin(
		WidgetKit::instance()->label(cp_), 3
	));
	p_->ref();
	pg->append(p_);
}

HocVarLabel::~HocVarLabel(){
	p_->unref();
	if (variable_) {
		delete variable_;
	}
	if (pyvar_) {
		hoc_obj_unref(pyvar_);
		if (cp_) { delete [] cp_; }
	}
}

void HocVarLabel::write(ostream& o) {
	if (variable_ && cpp_) {
		char buf[256];
		sprintf(buf, "xvarlabel(%s)", variable_->string());
		o << buf << endl;
	}else{
		o << "xlabel(\"<can't retrieve>\")" << endl;
	}
}

void HocVarLabel::update_hoc_item() {
	if (pyvar_) {
		if ((*nrnpy_guigetstr)(pyvar_, &cp_)){
			p_->body(
				LayoutKit::instance()->margin(
					WidgetKit::instance()->label(cp_), 3
				)
			);
			p_->redraw();
			p_->reallocate();
			p_->redraw();
		}
	}else if (cpp_) {
//printf("update %s\n", cp_);
		if (*cpp_ != cp_) {
			cp_ = *cpp_;
//printf("replacing with %s\n", cp_);
			p_->body(
				LayoutKit::instance()->margin(
					WidgetKit::instance()->label(cp_), 3
				)
			);
			p_->redraw();
			p_->reallocate();
			p_->redraw();
		}
	}else if (cp_) {
		cp_ = 0;
//printf("HocVarLabel::update() freed\n");
		p_->body(
			LayoutKit::instance()->margin(
				WidgetKit::instance()->label("Free'd"), 3
			)
		);
		p_->redraw();
		p_->reallocate();
		p_->redraw();
	}
		
}

HocMenuAction::HocMenuAction(const char* action, Object* pyact, HocMenu* hm)
: HocAction(action, pyact) {
	hm_ = hm;
	hp_ = NULL;
}
HocMenuAction::~HocMenuAction(){
	Resource::unref(hp_);	
}
void HocMenuAction::execute() {
	while (hm_->menu()->item_count()) {
		hm_->menu()->remove_item(0);
	}
	Resource::unref(hp_);
	hp_ = NULL;
	hoc_ivpanel("");
	menuStack->push(hm_);
	HocAction::execute();
	menuStack->pop();
	checkOpenPanel();
	hp_ = curHocPanel;
	curHocPanel = NULL;
	hm_->item()->menu(hm_->menu());
}

//HocAction
HocAction::HocAction(const char* action, Object* pyact){
	hi_ = NULL;
	if (pyact) {
		action_ = new HocCommand(pyact);
	}else if (action && action[0] != '\0') {
		action_ = new HocCommand(action);
	}else{
		action_ = NULL;
	}
}

HocAction::~HocAction() {
	if (action_) {
		delete action_;
	}
}

void HocAction::hoc_item(HocItem* hi) {
	hi_ = hi;
}

void HocAction::execute() {
	if (Oc::helpmode()) {
		help();
		return;
	}
	PanelInputHandler::handle_old_focus();
	if (action_) {
		action_->audit();
		action_->execute();
	}else{
		Oc oc;
		oc.notify();
	}
}

void HocAction::help() {
	if (hi_) {
		hi_->help();
	}
}

const char* HocAction::name() const {
	if (action_) {
		return action_->name();
	}else{
		return "";
	}
}

#if UseFieldEditor
declareFieldEditorCallback(HocValAction)
implementFieldEditorCallback(HocValAction)
#else
declareFieldSEditorCallback(HocValAction);
implementFieldSEditorCallback(HocValAction);
#endif
//HocValAction
HocValAction::HocValAction(const char* action, Object* pyact) : HocAction(action, pyact){
	fe_ = NULL;
#if UseFieldEditor
	fea_ = new FieldEditorCallback(HocValAction)(
#else
	fea_ = new FieldSEditorCallback(HocValAction)(
#endif
		this, &HocValAction::accept, NULL);
	fea_->ref();
}

HocValAction::~HocValAction() {
//printf("~HocValAction\n");
	fea_->unref();
}

void HocValAction::setFieldSEditor(HocValEditor* fe) {
	fe_ = fe; //but not referenced since this action is referenced by fe
}

void HocValAction::accept(FieldSEditor*) {
	if (fe_->active()) {
		fe_->field_editor()->parent()->focus(NULL);
	}else{
		fe_->evalField();
	}
	fe_->audit();
	HocAction::execute();
}
			
void HocValAction::execute() {
	if (Oc::helpmode()) {
		fe_->help();
		return;
	}
	accept(fe_->field_editor());
}

class HocDefaultCheckbox : public Button {
public:
	HocDefaultCheckbox(HocDefaultValEditor*, Glyph*, Style*, TelltaleState*,
	   Action*);
	virtual ~HocDefaultCheckbox();
	static HocDefaultCheckbox* instance(HocDefaultValEditor*);
	virtual void release(const Event&);
private:
	HocDefaultValEditor* dve_;
};

HocDefaultCheckbox::HocDefaultCheckbox(HocDefaultValEditor* dve, Glyph* g,
 Style* s, TelltaleState* t, Action* a) : Button(g, s, t, a)
{
	dve_ = dve;
}

HocDefaultCheckbox::~HocDefaultCheckbox() { }

HocDefaultCheckbox* HocDefaultCheckbox::instance(HocDefaultValEditor* dve) {
	Glyph* g;
	TelltaleState* t;
	WidgetKit& k = *WidgetKit::instance();
	Style* s;
	k.begin_style("ToggleButton", "Button");
	t = new TelltaleState(
		TelltaleState::is_enabled | TelltaleState::is_toggle
	);
	g = k.check_box_look(NULL, t);
	s = k.style();
	HocDefaultCheckbox* cb = new HocDefaultCheckbox(dve, g, s, t, NULL); 
	k.end_style();
	return cb;
}

void HocDefaultCheckbox::release(const Event& e) {
	if (Oc::helpmode()) {
		Button::release(e);
	}
	if (e.pointer_button() == Event::right) {
		dve_->def_change(e.pointer_root_x(), e.pointer_root_y());
	}
	Button::release(e);
}

declareActionCallback(HocDefaultValEditor);
implementActionCallback(HocDefaultValEditor);

//HocDefaultValEditor
HocDefaultValEditor::HocDefaultValEditor(const char* name, const char* variable,
  ValEdLabel* prompt, HocValAction* a, double* pd, bool canrun,
  HocItem* hi, Object* pyvar)
    : HocValEditor(name, variable, prompt, a, pd, canrun, hi, pyvar)
{
	checkbox_ = HocDefaultCheckbox::instance(this);
	checkbox_->ref();
	checkbox_->action(new ActionCallback(HocDefaultValEditor)
		(this, &HocDefaultValEditor::def_action));
	evalField();
	deflt_ = most_recent_ = get_val();
	vs_ = HocValStepper::instance(this);
	Resource::ref(vs_);
}

HocDefaultValEditor::~HocDefaultValEditor() {
	checkbox_->unref();
	vs_->unref();
}

void HocDefaultValEditor::def_change(float x0, float y0) {
	evalField();
	double x = get_val();
	if (x != deflt_) {
		char form[200], buf[200];
		sprintf(form, "Permanently replace default value %s with %s",
			xvalue_format->string(), xvalue_format->string());
		sprintf(buf, form, deflt_, x);
		if (boolean_dialog(buf, "Replace", "Cancel", NULL, x0, y0)) {
			deflt_ = x;
			most_recent_ = x;
		}
	}
}

void HocDefaultValEditor::updateField() {
	HocValEditor::updateField();
	TelltaleState* t = checkbox_->state();
//	printf("telltale flag %x\n", t->flags());
	bool same = (hoc_ac_ == deflt_);
	bool chosen = t->test(TelltaleState::is_chosen);
	if (same && chosen) {
		t->set(TelltaleState::is_chosen, false);
	}else if (!same) {
		most_recent_ = hoc_ac_;
		if (!chosen) {
			t->set(TelltaleState::is_chosen, true);
		}
	}
}

void HocDefaultValEditor::deflt(double d) {
	deflt_ = d;
}

void HocDefaultValEditor::def_action() {
	if (Oc::helpmode()) {
		checkbox_->state()->set(TelltaleState::is_chosen,
			!checkbox_->state()->test(TelltaleState::is_chosen));
		Oc::help(Editor_Default);
		return;
	}
	bool chosen = checkbox_->state()->test(TelltaleState::is_chosen);
	if (chosen) {
		if (most_recent_ != deflt_) {
			set_val(most_recent_);
		}
	}else{
		double x = get_val();
		if (deflt_ != x) {
			most_recent_ = x;
			set_val(deflt_);
		}
	}
//	Oc oc;
//	oc.notifyHocValue();
	updateField();
	exec_action();
}

//HocValEditorKeepUpdated
HocValEditorKeepUpdated::HocValEditorKeepUpdated(const char* name , const char* variable,
   ValEdLabel* prompt, HocValAction* act, double* pd, HocItem* hi, Object* pyvar)
	:HocValEditor(name, variable, prompt, act, pd, false, hi, pyvar)
{
//	printf("~HocValEditorKeepUpdated\n");
	HocPanel::keep_updated(this, true);
}
HocValEditorKeepUpdated::~HocValEditorKeepUpdated() {
//	printf("~HocValEditorKeepUpdated\n");
	HocPanel::keep_updated(this, false);
}

//HocEditorForItem g++ doesn't do multiple inheritance of same base classes.

HocEditorForItem::HocEditorForItem(HocValEditor* he, HocValAction* a)
   : FieldSEditor("", WidgetKit::instance(), Session::instance()->style(), a->fea()) {
	hve_ = he;
#ifdef WIN32
	FieldSEditor::focus_out();
#endif
//	hve_->ref();
}
HocEditorForItem::~HocEditorForItem() {
//	hve_->unref();
}


static void set_format() {
	static Coord len;
	if (!xvalue_format) {
		xvalue_format = new String("%.5g");
		WidgetKit::instance()->style()->find_attribute("xvalue_format",
			*xvalue_format);
		char buf[100];
		sprintf(buf, xvalue_format->string(), -8.888888888888888e-18);
		Glyph* g = WidgetKit::instance()->label(buf);
		g->ref();
		Requisition r;
		g->request(r);

// mike_neubig_ivoc_xmenu
		float fct;
		Style* s = WidgetKit::instance()->style();
		if(!s->find_attribute("xvalue_field_size_increase", fct)){
			 fct = 10; }
		xvalue_field_size = r.x_requirement().natural() + fct;
		g->unref();
	}
	
}

double MyMath::resolution(double x) {
	if (!xvalue_format) {
		set_format();
	}
	char buf[100];
	sprintf(buf, xvalue_format->string(), Math::abs(x));
	char* cp;
	char* least = NULL;
	for (cp = buf; *cp; ++cp) {
		if (isdigit(*cp)) {
			least = cp;
			break;
		}
	}
	for (; *cp; ++cp) {
		if (*cp >= '1' && *cp <= '9') {
			*cp = '0';		
			least = cp;
		}
		if (isalpha(*cp)) {
			break;
		}
	}
	assert(least);
	*least = '1';
	double y;
	sscanf(buf, "%lf", &y);
	return y;
}
	
//HocValEditor
HocValEditor::HocValEditor(const char* name, const char* variable, ValEdLabel* prompt,
  HocValAction* a, double* pd, bool canrun, HocItem* hi, Object* pyvar)
   : HocUpdateItem(name, hi)
{
	if (!xvalue_format) {
		set_format();
	}
	action_ = a;
	fe_ = new HocEditorForItem(this, a);
	fe_->ref();
	Resource::ref(a);
	prompt_ = prompt;
	prompt->ref();
	canrun_ = canrun;
   	active_ = false;
	domain_limits_ = NULL;
	variable_ = NULL;
	pyvar_ = pyvar;
	pval_ = NULL;
	if (pd) {
		pval_ = pd;
	}
	if (pyvar) {
		hoc_obj_ref(pyvar);
	}else if (variable) {
		variable_ = new CopyString(variable);
		Symbol* sym = hoc_get_symbol(variable);
		if (sym && sym->extra) {
			domain_limits_ = sym->extra->parmlimits;
		}
	}
	HocValEditor::updateField();
	fe_->focus_out();
}

HocValEditor::~HocValEditor() {
//printf("~HocValEditor\n");
	if (variable_) {
		delete variable_;
	}
	if (pyvar_) { hoc_obj_unref(pyvar_); }
	Resource::unref(action_);
	Resource::unref(prompt_);
	fe_->unref();
}

void HocValEditor::setlimits(float* limits) {
	domain_limits_ = limits;
}

void HocValEditor::update_hoc_item() {
	updateField();
}

void HocValEditor::exec_action() {
	if (action_) {
		action_->execute();
	}else{
		Oc oc;
		oc.notify();
	}
}

void HocValEditor::print(Printer* p, const Allocation& a) const {
//	printf("HocvalEditor::print\n");
	Glyph* l = WidgetKit::instance()->label(*fe_->text());
	l->ref();
	l->print(p, a);
	l->unref();
}

void HocValEditor::set_val(double x) {
	char buf[200];
	if (pyvar_) {
		(*nrnpy_guisetval)(pyvar_, x);
		return;
	}
	hoc_ac_ = x;
	Oc oc;
	if (pval_) {
		*pval_ = hoc_ac_;
	}else if (variable_){
		sprintf(buf, "%s = hoc_ac_\n", variable_->string()); oc.run(buf);
	}
}

double HocValEditor::get_val() {
	char buf[200];
	if (pyvar_) {
		return (*nrnpy_guigetval)(pyvar_);
	}else if (pval_) {
		return *pval_;
	}else if (variable_) {
		Oc oc;
		sprintf(buf, "hoc_ac_ = %s\n", variable_->string()); oc.run(buf);
		return hoc_ac_;
	}else{
		return 0.;
	}
}

double HocValEditor::domain_limits(double val) {
	return check_domain_limits(domain_limits_, val);
}

void HocValEditor::evalField() {
	char buf[200];
	Oc oc;
	sprintf(buf, "hoc_ac_ = %s\n", fe_->text()->string()); oc.run(buf);
	hoc_ac_ = domain_limits(hoc_ac_);
	set_val(hoc_ac_);
	//prompt_->state()->set(TelltaleState::is_active, false);
	prompt_->state(false);
}

void HocValEditor::audit() {
	char buf[200];
	if (pyvar_) {
		return;
	}else if (variable_) {
		sprintf(buf, "%s = %s\n",
			variable_->string(), fe_->text()->string());
	}else if (pval_){
		sprintf(buf, "// %p pointer set to %s\n",
			pval_, fe_->text()->string());
	}
	hoc_audit_command(buf);
}

void HocValEditor::updateField() {
	if (active_) return;
	char buf[200];
	if (pyvar_) {
		hoc_ac_ = get_val();
		sprintf(buf, xvalue_format->string(), hoc_ac_);
	}else if (pval_) {
		sprintf(buf, xvalue_format->string(), *pval_);
		hoc_ac_ = *pval_;
	}else if (variable_) {
		Oc oc;
		sprintf(buf, "hoc_ac_ = %s\n", variable_->string());
		if (oc.run(buf, 0)) {
			strcpy(buf, "Doesn't exist");
		}else{
			sprintf(buf, xvalue_format->string(), hoc_ac_);
		}
	}else{
		sprintf(buf, "Free'd");
	}
	if (strcmp(buf, fe_->text()->string()) != 0) {
		fe_->field(buf);
	}
}

void HocValEditor::write(ostream& o) {
	char buf[200];
	Oc oc;
	if (variable_){
		sprintf(buf, "hoc_ac_ = %s\n", variable_->string()); oc.run(buf);
		sprintf(buf, "%s = %g", variable_->string(), hoc_ac_);
	}else if (pval_) {
		sprintf(buf, "/* don't know the hoc path to %g", *pval_);
		return;
	}else{
		sprintf(buf, "/* variable freed */");
		return;
	}
	o << buf << endl;

	int usepointer;
	if (pval_) {
		usepointer=1;
	}else{
		usepointer=0;
	}
sprintf(buf, "xvalue(\"%s\",\"%s\", %d,\"%s\", %d, %d )", getStr(),
		variable_->string(), hoc_default_val_editor(),
		hideQuote(action_->name()),
		(int)canrun_, usepointer);
	o << buf << endl;
}

const char* HocValEditor::variable() const {
	if (variable_) {
		return variable_->string();
	}else{
		return NULL;
	}
}


void HocValEditorKeepUpdated::write(ostream& o) {
	char buf[200];
	Oc oc;
	sprintf(buf, "hoc_ac_ = %s\n", variable()); oc.run(buf);
	sprintf(buf, "%s = %g", variable(), hoc_ac_);
	o << buf << endl;
sprintf(buf, "xvalue(\"%s\",\"%s\", 2 )", getStr(),
		variable());
	o << buf << endl;
}

void HocEditorForItem::keystroke(const Event& e) {
	bool unfocus = false;
	if (!hve_->active_) {
		return;
	}
	if (Oc::helpmode()) {
		hve_->help();
		return;
	}
	char buf[2];
	if (e.mapkey(buf, 1) > 0) switch (buf[0]) {
	case '\n':
	case '\r':
		unfocus = true;
		break;
	case '\033':
		hve_->active_ = false;
		hve_->updateField();
		hve_->active_ = true;
		parent()->focus(NULL);
		return;
	case '\007':
		hve_->active_ = false;
		hve_->updateField();
		hve_->active_ = true;
		return;
	default:
		break;
	}
	FieldSEditor::keystroke(e);
	if (unfocus) {
		parent()->focus(NULL);
	}
}
class HocEditorTempData {
public:
	void init(const Event&);
	int sn(const Event&);
#if 0
	Coord x_, y_;
	Coord xd_, yd_;
#endif
	int sn_;
	int index_;
	EventButton b_;
};

static HocEditorTempData etd;

void HocEditorTempData::init(const Event& e) {
#if 0
	x_ = e.pointer_x();
	y_ = e.pointer_y();
	xd_ = 1.;
	yd_ = 1.;
#endif
	b_ = e.pointer_button();
	if (b_ == Event::right) {
		sn_ = -1;
	}else{
		sn_ = 1;
	}
}

int HocEditorTempData::sn(const Event&) {
#if 0
	float xnew = e.pointer_x();
	float ynew = e.pointer_y();
#undef RES
#define RES 3
	if (Math::equal(x_, xnew, float(RES)) && Math::equal(y_, ynew, float(RES))) {
		return 0;
	}
	sn_ = ( ((xnew - x_)*xd_ + (ynew - y_)*yd_ >= 0.)) ? sn_ : -sn_;
	xd_ = xnew - x_;
	yd_ = ynew - y_;
	x_ = xnew;
	y_ = ynew;
#endif
	return sn_;
}

void HocEditorForItem::press(const Event& e) {
	if (Oc::helpmode()) {
		hve_->help();
		return;
	}
//	if (!hve_->active_) {
//		focus_in();
//	}
	FieldSEditor::press(e);
#if !UseFieldEditor
	int start;
	FieldSEditor::selection(start, index_);
	etd.init(e);
#endif
}

void HocEditorForItem::drag(const Event& e) {
#ifdef WIN32
	FieldSEditor::drag(e);
#else
	if (etd.b_ == Event::left) {
		FieldSEditor::drag(e);
	}else{
		val_inc(e);
	}
#endif
}

void HocEditorForItem::val_inc(const Event& e) {
	int index = index_;
	int i, sn;
	i = index;
	sn = etd.sn(e);
	if (sn == 0) {
		return;
	}
	const char* s = text()->string();
	char abuf[100];
	char* buf = abuf+1;
	strcpy(buf, s);
	if (i == strlen(buf)) {
		buf[i] = '0';
		buf[i+1] = '\0';
	}
	while( i >= 0 ) {
		if (isdigit(buf[i])) {
			buf[i] = (((buf[i] - '0') + sn + 100)%10) + '0';
			if (sn == 1 && buf[i] != '0') {
				break;
			}else if (sn == -1 && buf[i] != '9') {
				break;
			}
		}
		--i;
	}
	if (i < 0) {
		if (buf[0] == '-') {
			if (sn == 1) {
				buf[0] = '1';
				abuf[0] = '-';
				buf = abuf;
				++index_;
			}else{
				strcpy(buf, s);
			}
		}else{
			if (sn == 1) {
				abuf[0] = '1';
				buf = abuf;
				++index_;
			}else{
				strcpy(buf, s);
			}
		}
	}
	field(buf);
}

void HocEditorForItem::release(const Event& e) {
	FieldSEditor::release(e);
}


InputHandler* HocEditorForItem::focus_in() {
//printf("HocEditorForItem::focus_in()\n");
	if (Oc::helpmode()) {
		return NULL;
	}
	if (!hve_->active_) {
		//hve_->prompt_->state()->set(TelltaleState::is_active, true);
		hve_->prompt_->state(true);
		hve_->active_ = true;
		return FieldSEditor::focus_in();
	}else{
		return InputHandler::focus_in();
	}
}

void HocEditorForItem::focus_out() {
	if (hve_->active_) {
		hve_->active_ = false;
		//hve_->prompt_->state()->set(TelltaleState::is_active, false);
		hve_->prompt_->state(false);
		hve_->evalField();
	}
	FieldSEditor::focus_out();
	if (PanelInputHandler::has_old_focus()) {
//printf("old focus out %p\n", (InputHandler*)this);
		hve_->exec_action();
	}
}

void Oc::notifyHocValue() {
//static int j=0;
//printf("notifyHocValue %d\n", ++j);
	ParseTopLevel ptl;
	ptl.save();
	if (hoc_panel_list) for (long i = hoc_panel_list->count() - 1; i >= 0; --i) {
		hoc_panel_list->item(i)->notifyHocValue();
	}				
	ptl.restore();
}

void HocPanel::notifyHocValue() {
	for (long i = elist_.count() - 1; i >= 0; --i) {
		elist_.item(i)->update_hoc_item();
	}				
}

void HocPanel::check_valid_pointers(void* v, int size) {
	for (long i = elist_.count() - 1; i >= 0; --i) {
		elist_.item(i)->check_pointer(v, size);
	}				
}

void HocValEditor::check_pointer(void* v, int size) {
	if (pval_) {
		double* pd = (double*)v;
		if (size == 1) {
			if (pd != pval_) return;
		}else{
			if (pval_ < pd || pval_ >= pd + size) return;
		}
		pval_ = 0;
	}
}
void HocVarLabel::check_pointer(void* v, int) {
	char** cpp = (char**)v;
	if (cpp_ == cpp) {
		cpp_ = 0;
	}
}

void HocPanel::data_path(HocDataPaths* hdp, bool append) {
	for (long i = elist_.count() - 1; i >= 0; --i) {
		elist_.item(i)->data_path(hdp, append);
	}				
}

void HocValEditor::data_path(HocDataPaths* hdp, bool append) {
	if (!variable_) {
		if (append) {
			hdp->append(pval_);
		}else{
			String* s = hdp->retrieve(pval_);
			if (s) {
				variable_ = new CopyString(s->string());	
			}
		}
	}
}

void HocVarLabel::data_path(HocDataPaths* hdp, bool append) {
	if (cpp_ && !variable_) {
		if (append) {
			hdp->append(cpp_);
		}else{
			String* s = hdp->retrieve(cpp_);
			if (s) {
				variable_ = new CopyString(s->string());	
			}
		}
	}
}

class StepperMenuAction : public Action {
public:
	StepperMenuAction(bool, double);
	virtual ~StepperMenuAction();
	virtual void execute();
private:
	double x_;
	bool geometric_;
};

class StepperMenu : public PopupMenu {
public:
	StepperMenu();
	virtual ~StepperMenu();
	void stepper(HocValStepper* vs) { vs_ = vs;}
	HocValStepper* stepper() { return vs_; }
	virtual bool event(Event&);
	void active(bool b) { active_ = b;}
	bool active() { return active_;}
private:
	bool active_;
	HocValStepper* vs_;
};
	
StepperMenu* HocValStepper::menu_;

StepperMenuAction::StepperMenuAction(bool b, double x) {
	x_ = x;
	geometric_ = b;
}
StepperMenuAction::~StepperMenuAction() {
}
void StepperMenuAction::execute() {
	HocValStepper::menu()->stepper()->default_inc(geometric_, x_);
}
StepperMenu::StepperMenu() {
	WidgetKit& k = *WidgetKit::instance();
	char buf[50];
	active_ = false;
	vs_ = NULL;
	MenuItem* m;
	m = K::menu_item("Res");
	m->action(new StepperMenuAction(false, 0));
	append_item(m);
	m = K::menu_item("*10");
	m->action(new StepperMenuAction(true, 10));
	append_item(m);
	m = K::menu_item("*10^.1");
	m->action(new StepperMenuAction(true, pow(10., .1)));
	append_item(m);
	m = K::menu_item("*e");
	m->action(new StepperMenuAction(true, exp(1.)));
	append_item(m);
	m = K::menu_item("*e^.1");
	m->action(new StepperMenuAction(true, exp(.1)));
	append_item(m);
	m = K::menu_item("*2");
	m->action(new StepperMenuAction(true, 2));
	append_item(m);
	m = K::menu_item("*2^.1");
	m->action(new StepperMenuAction(true, pow(2., .1)));
	append_item(m);
	for (double x = 1000 ; x > .0005; x /= 10.) {
		sprintf(buf, "+%g", x);
		m = K::menu_item(buf);
		m->action(new StepperMenuAction(false, x));
		append_item(m);
	}
}
StepperMenu::~StepperMenu() {
}
bool StepperMenu::event(Event& e) {
	PopupMenu::event(e);
	if (e.type() == Event::up) {
		vs_->menu_up(e);
	}
	return true;
}

/* static */ class NrnUpDown : public Glyph {
public:
	static NrnUpDown* instance();
	virtual ~NrnUpDown();
	virtual void request(Requisition&) const;
	virtual void draw(Canvas*, const Allocation&) const;
private:
	NrnUpDown(const Color*);
	static NrnUpDown* instance_;
	const Color* color_;
};

NrnUpDown* NrnUpDown::instance_;

NrnUpDown::NrnUpDown(const Color* c) : Glyph() {
	color_ = c;
	Resource::ref(c);
}

NrnUpDown::~NrnUpDown() {
	Resource::unref(color_);
}

NrnUpDown* NrnUpDown::instance() {
	if (!instance_) {
		instance_ = new NrnUpDown(WidgetKit::instance()->foreground());
		instance_->ref();
	}
	return instance_;
}

#if 1
void NrnUpDown::request(Requisition& r) const {
	Requirement x(10);
	Requirement y(20);
	r.require_x(x);
	r.require_y(y);
}
#endif

void NrnUpDown::draw(Canvas* c, const Allocation& a) const {
	Coord x1 = a.left();
	Coord y1 = a.bottom();
	Coord x2 = a.right();
	Coord y2 = a.top();
//printf("draw %g %g %g %g\n", x1, y1, x2, y2);
	Coord x = (x1 + x2)*.5;
	Coord y = (y1 + y2)*.5;

	c->new_path();
	c->move_to(x1, y+1);
	c->line_to(x, y2);
	c->line_to(x2, y+1);
	c->close_path();
	c->fill(color_);

#if 1
	c->new_path();
	c->move_to(x1, y-1);
	c->line_to(x, y1);
	c->line_to(x2, y-1);
	c->close_path();
	c->fill(color_);
#endif
}

static Glyph* up_down_mover_look(TelltaleState* t) {
	return WidgetKit::instance()->push_button_look(NrnUpDown::instance(), t);
}

HocValStepper* HocValStepper::instance(HocValEditor* ve) {
	Glyph* g;
	TelltaleState* t;
	WidgetKit& k = *WidgetKit::instance();
	Style* s;
	k.begin_style("UpMover", "Button");
	t = new TelltaleState(TelltaleState::is_enabled);
	g = up_down_mover_look(t);
//	g = k.up_mover_look(t);
	s = k.style();
	HocValStepper* vs = new HocValStepper(ve, g, s, t);
	k.end_style();
	return vs;
}

HocValStepper::HocValStepper(HocValEditor* ve, Glyph* g, Style* s,
TelltaleState* t) : Stepper(g, s, t) {
	if (!menu_) {
		menu_ = new StepperMenu();
		menu_->ref();
	}
	hve_ = ve;
	default_inc_ = MyMath::resolution(hve_->get_val());
	geometric_ = false;
}
HocValStepper::~HocValStepper() {
}
void HocValStepper::press(const Event& e) {
	steps_ = 0;
	inc_ = default_inc_;
	menu_->active(false);
	if (Oc::helpmode()) {
		return;
	}
	switch (e.pointer_button()) {
	case Event::left :
	case Event::middle :
	    {
		const Allocation& a = allocation();
		if (e.pointer_y() < (a.bottom() + a.top())*.5) {
			if (geometric_) {
				inc_ = 1./default_inc_;
			}else{
				inc_ *= -1;
			}
		}
		menu_->stepper(this);
		Stepper::press(e);
		break;
	    }
	case Event::right :
	   {
		menu_->active(true);
		menu_->stepper(this);
		Event e1(e);
		menu_->event(e1);
	   }
		break;
	}
}
void HocValStepper::default_inc(bool g, double x) {
	if (x == 0.) {
		default_inc_ = MyMath::resolution(hve_->get_val());
		geometric_ = false;
	}else{
		default_inc_ = x;
		geometric_ = g;
	}
}

void HocValStepper::release(const Event& e) {
	if (Oc::helpmode()) {
		Oc::help(Editor_Stepper);
		return;
	}
	if (menu_->active()) {
		menu_->active(false);
		Button::release(e);
		return;
	}
	Stepper::release(e);
	Oc oc;
	hve_->exec_action();
	oc.notify();
}
void HocValStepper::menu_up(Event& e) {
	menu_->active(true);
#ifdef WIN32
	handler()->event(e);
#else
	e.unread();
#endif
}

void HocValStepper::adjust() {
	double x, y;
	x = hve_->get_val();
	if (geometric_) {
		y = x * inc_;
	}else{
		y = x + inc_;
	}
	y = hve_->domain_limits(y);
	if ( steps_ > 0 &&  x*y <= 0.) {
		y = 0.;
		inc_ = 0.;
	}
	hve_->set_val(y);
	hve_->updateField();
	if (!geometric_ && ((++steps_)%20) == 0) {
		inc_ *= 10.;
	}
}
void HocValStepper::left() {
	inc_ = default_inc_;
}
void HocValStepper::middle() {
	inc_ = default_inc_;
}
void HocValStepper::right() {
}

//OcSlider

// ZFM added vert_
OcSlider::OcSlider(double* pd, float low, float high,
	float resolution, int nsteps,
	const char* send, bool vert, bool slow, Object* pyvar, Object* pysend)
  : HocUpdateItem("")
{
	resolution_ = resolution;
	variable_ = NULL;
	pval_ = pd;
	pyvar_ = pyvar;
	if (pyvar_) { hoc_obj_ref(pyvar_); }
	vert_ = vert;
	slow_ = slow;
	bv_ = new BoundedValue(low, high);
	bv_->scroll_incr((high - low)/nsteps);
	if (send) {
		send_ = new HocCommand(send);
	}else if (pysend) {
		send_ = new HocCommand(pysend);
	}else{
		send_ = NULL;
	}
	bv_->attach(Dimension_X, this);
	scrolling_ = false;
}
OcSlider::~OcSlider() {
	if (send_) {
		delete send_;
	}
	delete bv_;
	if (variable_) {
		delete variable_;
	}
	if (pyvar_) { hoc_obj_unref(pyvar_); }
}
Adjustable* OcSlider::adjustable() { return bv_; }

static double last_send;
void OcSlider::update(Observable*) {
		double x = slider_val();
		if (pval_) {
			*pval_ = x;
		}else if (pyvar_) {
			(*nrnpy_guisetval)(pyvar_, x);
		}else{
			return;
		}
	if (!scrolling_) {
		scrolling_ = true;
		while (Coord(x) != last_send) {
			audit();
			last_send = Coord(x);
			if (send_) {
				send_->execute();
			}else{
				Oc oc;
				oc.notify();
			}
		}
		scrolling_ = false;
	}
}

void OcSlider::audit() {
	char buf[200];
	if (variable_) {
		sprintf(buf, "%s = %g\n",
			variable_->string(), *pval_);
	}else if (pval_){
		sprintf(buf, "// %p pointer set to %g\n",
			pval_, *pval_);
	}
	hoc_audit_command(buf);
	if (send_) {
		send_->audit();
	}	
}

double OcSlider::slider_val() {
	double x = double(bv_->cur_lower(Dimension_X));
	x = MyMath::anint(x/resolution_);
	x = x*resolution_;
	if (x > bv_->upper(Dimension_X) - resolution_/2.) x = bv_->upper(Dimension_X);
	if (x < bv_->lower(Dimension_X) + resolution_/2.) x = bv_->lower(Dimension_X);
      
	return x;
}

void OcSlider::update_hoc_item() {
	Coord x = 0.;
	if (pyvar_) {
		x = Coord((*nrnpy_guigetval)(pyvar_));
	}else if (pval_) {
		 x = Coord(*pval_);
	}else{
		return;
	}
	if (x != bv_->cur_lower(Dimension_X)) {
		bool old = scrolling_;
		scrolling_ = true;
		bv_->scroll_to(Dimension_X, x);
		scrolling_ = old;
	}
}
void OcSlider::check_pointer(void* v, int size) {
	if (pval_) {
		double* pd = (double*)v;
		if (size == 1) {
			if (pd != pval_) return;
		}else{
			if (pval_ < pd || pval_ >= pd + size) return;
		}
		pval_ = 0;
	}
}
void OcSlider::data_path(HocDataPaths* hdp, bool append) {
	if (!variable_ && pval_) {
		if (append) {
			hdp->append(pval_);
		}else{
			String* s = hdp->retrieve(pval_);
			if (s) {
				variable_ = new CopyString(s->string());	
			}
		}
	}
}
void OcSlider::write(ostream& o) {
	if (variable_) {
		char buf[256];
		if (send_) {
			sprintf(buf, "xslider(&%s, %g, %g, \"%s\", %d, %d)",
				variable_->string(),
				bv_->lower(Dimension_X),
				bv_->upper(Dimension_X),
				hideQuote(send_->name()),
				vert_, slow_
			);
		}else{
			sprintf(buf, "xslider(&%s, %g, %g, %d, %d)",
				variable_->string(),
				bv_->lower(Dimension_X),
				bv_->upper(Dimension_X),
				vert_, slow_
			);
		}
		o << buf << endl;
	}
}




//  Button with state

void HocPanel::stateButton(double* pd, const char* name, const char* action, int style, Object* pyvar, Object* pyact) {

  HocAction* act = new HocAction(action, pyact);
  Button* button;
  if (style == HocStateButton::PALETTE) {
    button = WidgetKit::instance()->palette_button(name,act);
  } else {
    button = WidgetKit::instance()->check_box(name,act);
  }    
  box()->append(button);
  HocStateButton* hsb = new HocStateButton(pd,name,button,act,style,hoc_item(), pyvar);
  item_append(hsb);
  elist_.append(hsb);
  hsb->ref();
}

declareActionCallback(HocStateButton);
implementActionCallback(HocStateButton);

HocStateButton::HocStateButton(double* pd, const char* text, Button* button,
	HocAction* action, int style, HocItem* hi, Object* pyvar) 
   : HocUpdateItem("", hi)
{
	style_ = style;
	pval_ = pd;
	pyvar_ = pyvar;
	if (pyvar_) { hoc_obj_ref(pyvar_); }
	variable_ = NULL;
	name_ = new CopyString(text);
	action_ = action;
	action->hoc_item(this);
	Resource::ref(action_);

	b_ = button;
//	b_->ref();	// mutually reffed so don't
	b_->action(new ActionCallback(HocStateButton)
		(this, &HocStateButton::button_action));
}



HocStateButton::~HocStateButton() { 
   if (variable_) delete variable_;
    if (pyvar_) { hoc_obj_unref(pyvar_); }
    delete name_;
    Resource::unref(action_);
//	only come here when b is being deleted
//    Resource::unref(b_);
//   delete b_;
}

void HocStateButton::print(Printer* pr, const Allocation& a) const {
	Glyph* l = WidgetKit::instance()->label(name_->string());
	l->ref();
	l->print(pr, a);
	l->unref();
}

bool HocStateButton::chosen() { 
  return b_->state()->test(TelltaleState::is_chosen);
}

void HocStateButton::button_action() {
	if(Oc::helpmode()) {
		help();
		b_->state()->set(TelltaleState::is_chosen, !chosen());
		return;
	}
	if (pval_) {
	  TelltaleState* t = b_->state();
		if (chosen() != bool(*pval_)) {
			*pval_ = double(chosen());
		}
	}
	if (pyvar_) {
	  TelltaleState* t = b_->state();
		if (chosen() != bool((*nrnpy_guigetval)(pyvar_))) {
			(*nrnpy_guisetval)(pyvar_, double(chosen()));
		}
	}
        if (action_) {
		action_->execute();
	} else {
		Oc oc;
		oc.notify();
	}
}


// set state of button to match variable
void HocStateButton::update_hoc_item() {
	double x = 0.;
	if (pyvar_) {
		x = nrnpy_guigetval(pyvar_);
	}else if (pval_) {
		x = *pval_;
	}
	if (x) {
	      b_->state()->set(TelltaleState::is_chosen, true);
	} else {
	      b_->state()->set(TelltaleState::is_chosen, false);
	}
}

void HocStateButton::check_pointer(void* v, int size) {
	if (pval_) {
		double* pd = (double*)v;
		if (size == 1) {
			if (pd != pval_) return;
		}else{
			if (pval_ < pd || pval_ >= pd + size) return;
		}
		pval_ = 0;
	}
}

void HocStateButton::data_path(HocDataPaths* hdp, bool append) {
	if (!variable_ && pval_) {
		if (append) {
			hdp->append(pval_);
		}else{
			String* s = hdp->retrieve(pval_);
			if (s) {
				variable_ = new CopyString(s->string());
			}
		}
	}
}
void HocStateButton::write(ostream& o) {
   if (variable_) {
      char buf[256];
      if (style_ == PALETTE) {
	sprintf(buf, "xstatebutton(\"%s\",&%s,\"%s\")", 
		name_->string(),
		variable_->string(),
		hideQuote(action_->name())
	      );
      } else {
	sprintf(buf, "xcheckbox(\"%s\",&%s,\"%s\")", 
		name_->string(),
		variable_->string(),
		hideQuote(action_->name())
	      );
      }
      o << buf << endl;
    }
 }




// menu item with state


MenuItem* HocPanel::menuStateItem(double* pd, const char* name, const char* action, Object* pyvar, Object* pyact) {

  MenuItem* mi = WidgetKit::instance()->check_menu_item(name);
  HocAction* act = new HocAction(action, pyact);
  HocStateMenuItem* hsb = new HocStateMenuItem(pd,name,mi,act,hoc_item(), pyvar);
  item_append(hsb);
  elist_.append(hsb);
  hsb->ref();
  return mi;

}



declareActionCallback(HocStateMenuItem);
implementActionCallback(HocStateMenuItem);

HocStateMenuItem::HocStateMenuItem(double* pd, const char* text, MenuItem* mi,
HocAction* action, HocItem* hi, Object* pyvar) 
   : HocUpdateItem("", hi)
{
	pval_ = pd;
	pyvar_ = pyvar;
	if (pyvar_) { hoc_obj_ref(pyvar_); }
	variable_ = NULL;
	name_ = new CopyString(text);
	action_ = action;
	action->hoc_item(this);
	Resource::ref(action_);

	b_ = mi;
//	Resource::ref(b_);
	b_->action(new ActionCallback(HocStateMenuItem)
		(this, &HocStateMenuItem::button_action));
}



HocStateMenuItem::~HocStateMenuItem() { 
   if (variable_) delete variable_;
	delete name_;
   if (pyvar_) { hoc_obj_unref(pyvar_); }
    Resource::unref(action_);
//    Resource::unref(b_);
//   delete b_;
}

void HocStateMenuItem::print(Printer* pr, const Allocation& a) const {
	Glyph* l = WidgetKit::instance()->label(name_->string());
	l->ref();
	l->print(pr, a);
	l->unref();
}

bool HocStateMenuItem::chosen() { 
  return b_->state()->test(TelltaleState::is_chosen);
}


void HocStateMenuItem::button_action() {
	if(Oc::helpmode()) {
		help();
		b_->state()->set(TelltaleState::is_chosen, !chosen());
		return;
	}
	if (pval_) {
	  TelltaleState* t = b_->state();
		if (chosen() != bool(*pval_)) {
			*pval_ = double(chosen());
		}
	}
	if (pyvar_) {
	  TelltaleState* t = b_->state();
		if (chosen() != bool((*nrnpy_guigetval)(pyvar_))) {
			(*nrnpy_guisetval)(pyvar_, double(chosen()));
		}
	}
        if (action_) {
		action_->execute();
	} else {
		Oc oc;
		oc.notify();
	}
}


// set state of button to match variable
void HocStateMenuItem::update_hoc_item() {
	double x = 0.;
	if (pyvar_) {
		x = nrnpy_guigetval(pyvar_);
	}else if (pval_) {
		x = *pval_;
	}
	if (x) {
	      b_->state()->set(TelltaleState::is_chosen, true);
	} else {
	      b_->state()->set(TelltaleState::is_chosen, false);
	}
}

void HocStateMenuItem::check_pointer(void* v, int size) {
	if (pval_) {
		double* pd = (double*)v;
		if (size == 1) {
			if (pd != pval_) return;
		}else{
			if (pval_ < pd || pval_ >= pd + size) return;
		}
		pval_ = 0;
	}
}

void HocStateMenuItem::data_path(HocDataPaths* hdp, bool append) {
	if (!variable_ && pval_) {
		if (append) {
			hdp->append(pval_);
		}else{
			String* s = hdp->retrieve(pval_);
			if (s) {
				variable_ = new CopyString(s->string());
			}
		}
	}
}

void HocStateMenuItem::write(ostream& o) {
   if (variable_) {
      char buf[256];
      sprintf(buf, "xcheckbox(\"%s\",&%s,\"%s\")", 
		name_->string(),
		variable_->string(),
		hideQuote(action_->name())
	      );

     o << buf << endl;
    }
 }


#endif //HAVE_IV
static void* vfe_cons(Object*) {
#if HAVE_IV
IFGUI
	if (!ifarg(2) || hoc_is_str_arg(2)) {
		hoc_xvalue_helper();
	}else{
		hoc_xpvalue_helper();
	}
	HocValEditor* fe = last_fe_constructed_;
	Resource::ref(fe);
	return (void*)fe;
ENDGUI
#endif
	return 0;
}
static void vfe_destruct(void* v) {
#if HAVE_IV
IFGUI
	HocValEditor* fe = (HocValEditor*)v;
	Resource::unref(fe);
ENDGUI
#endif
}
static double vfe_default(void* v) {
	double x = 0.;
#if HAVE_IV
IFGUI
	if (((HocValEditor*)v)->hoc_default_val_editor()) {
		HocDefaultValEditor* dfe = (HocDefaultValEditor*)v;
		dfe->deflt(x = dfe->get_val());
	}
ENDGUI
#endif
	return x;
}
static Member_func vfe_members[] = {
	"default", vfe_default,
	0, 0
};
void ValueFieldEditor_reg() {
	class2oc("ValueFieldEditor", vfe_cons, vfe_destruct, vfe_members, NULL, NULL, NULL);
}

#if HAVE_IV
void HocValEditor::update_ptrs() {
	update_ptrs_helper(&pval_);
}

void OcSlider::update_ptrs() {
	update_ptrs_helper(&pval_);
}

void HocStateButton::update_ptrs() {
	update_ptrs_helper(&pval_);
}

void HocStateMenuItem::update_ptrs() {
	update_ptrs_helper(&pval_);
}

void HocUpdateItem::update_ptrs_helper(double** p) {
	if (*p) {
		double* pd = nrn_recalc_ptr(*p);
		*p = pd;
	}
}

#endif

