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/* $Id$ */

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#include "../stdafx.h"

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#include <stdarg.h>

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#include "../openttd.h"

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#include "../debug.h"

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#include "../functions.h"

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#include "../map.h"

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#include "../player.h"

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#include "../window.h"

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#include "../gfx.h"

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#include "../viewport.h"

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#include "../console.h"

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#include "../variables.h"

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#include "../table/sprites.h"

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#include "../genworld.h"

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#include "../helpers.hpp"

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void CompositeWidget::AddWidget(Widget *wd)

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{

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	WidgetId id = wd->GetId();

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	std::pair<WidgetIterator, bool> pib = m_widgets.insert(Widgets::value_type(id, wd));

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	assert(pib.second);

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}

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Widget* CompositeWidget::GetWidget(WidgetId id)

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{

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	WidgetIterator it = m_widgets.find(id);

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	return (it != m_widgets.end()) ? (*it).second : NULL;

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}

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Widget* CompositeWidget::RemoveWidget(WidgetId id)

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{

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	WidgetIterator it = m_widgets.find(id);

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	if (it == m_widgets.end()) return NULL;

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	Widget *wd = (*it).second;

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	assert(wd->m_container == this);

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	wd->m_container = NULL;

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	m_widgets.erase(it);

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	return wd;

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}

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/*virtual*/ Widget* CompositeWidget::WidgetFromPt(const Point16 &pt_parent)

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{

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	Point16 pt_local = pt_parent - TopLeft();

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	bool inside_me = m_rect.PtInRect(pt_parent);

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	for (WidgetReverseIterator rit = m_widgets.rbegin(); rit != m_widgets.rend(); ++rit) {

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		/* get next child */

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		Widget *wd_child = (*rit).second;

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		/* ask the child recursively */

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		Widget *wd = wd_child->WidgetFromPt(pt_local);

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		if (wd != NULL) {

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			/* if the widget we found is inside me it is what we are searching for */

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			if (inside_me) return wd;

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			/* the point is outside me. The widget is clipped unless it is on-top widget */

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			if (wd->m_dont_clip) return wd;

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			/* try next child */

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		}

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	}

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	return inside_me ? this : NULL;

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}

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/*virtual*/ void CompositeWidget::Close()

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{

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	/* mark all children as closed in safe way */

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	for (WidgetReverseIterator rit_next = m_widgets.rbegin(); rit_next != m_widgets.rend(); ) {

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		/* save the iterator (it can be invalidated) and move forward */

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		WidgetReverseIterator rit = rit_next++;

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		/* get child */

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		Widget *wd_child = (*rit).second;

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		/* tell him we are closing */

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		wd_child->Close();

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	}

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	/* remove children */

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	m_widgets.clear();

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	/* mark self as closed */

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	super::Close();

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}