bullet3/examples/ThirdPartyLibs/Gwen/Controls/Base.cpp

/*
	GWEN
	Copyright (c) 2010 Facepunch Studios
	See license in Gwen.h
*/

#include "Gwen/Controls/Base.h"
#include "Gwen/Controls/Label.h"
#include "Gwen/Gwen.h"
#include "Gwen/BaseRender.h"
#include "Gwen/Skin.h"
#include "Gwen/Platform.h"
#include "Gwen/DragAndDrop.h"
#include "Gwen/ToolTip.h"
#include "Gwen/Utility.h"
#include <list>

#ifndef GWEN_NO_ANIMATION
#include "Gwen/Anim.h"
#endif

using namespace Gwen;
using namespace Controls;

Base::Base(Base* pParent)
{
	m_Parent = NULL;
	m_ActualParent = NULL;
	m_InnerPanel = NULL;
	m_Skin = NULL;

	SetParent(pParent);

	m_bHidden = false;
	m_Bounds = Gwen::Rect(0, 0, 10, 10);
	m_Padding = Padding(0, 0, 0, 0);
	m_Margin = Margin(0, 0, 0, 0);

	m_iDock = 0;
	m_DragAndDrop_Package = NULL;
	m_pUserData = NULL;

	RestrictToParent(false);

	SetMouseInputEnabled(true);
	SetKeyboardInputEnabled(false);

	Invalidate();
	SetCursor(Gwen::CursorType::Normal);
	SetToolTip(NULL);
	SetTabable(false);
	SetShouldDrawBackground(true);
	m_bDisabled = false;
	m_bCacheTextureDirty = true;
	m_bCacheToTexture = false;
}

Base::~Base()
{
	{
		Canvas* canvas = GetCanvas();
		if (canvas)
			canvas->PreDelete(this);
	}

	Base::List::iterator iter = Children.begin();
	while (iter != Children.end())
	{
		Base* pChild = *iter;
		iter = Children.erase(iter);
		delete pChild;
	}

	for (AccelMap::iterator accelIt = m_Accelerators.begin(); accelIt != m_Accelerators.end(); ++accelIt)
	{
		delete accelIt->second;
	}
	m_Accelerators.clear();

	SetParent(NULL);

	if (Gwen::HoveredControl == this)
		Gwen::HoveredControl = NULL;
	if (Gwen::KeyboardFocus == this)
		Gwen::KeyboardFocus = NULL;
	if (Gwen::MouseFocus == this) Gwen::MouseFocus = NULL;

	DragAndDrop::ControlDeleted(this);
	ToolTip::ControlDeleted(this);

#ifndef GWEN_NO_ANIMATION
	Anim::Cancel(this);
#endif

	if (m_DragAndDrop_Package)
	{
		delete m_DragAndDrop_Package;
		m_DragAndDrop_Package = NULL;
	}
}

extern int avoidUpdate;

void Base::Invalidate()
{
	m_bNeedsLayout = true;
	m_bCacheTextureDirty = true;

	avoidUpdate = -3;
}

void Base::DelayedDelete()
{
	Canvas* canvas = GetCanvas();
	canvas->AddDelayedDelete(this);
}

Canvas* Base::GetCanvas()
{
	Base* pCanvas = m_Parent;
	if (!pCanvas) return NULL;

	return pCanvas->GetCanvas();
}

void Base::SetParent(Base* pParent)
{
	if (m_Parent == pParent) return;

	if (m_Parent)
	{
		m_Parent->RemoveChild(this);
	}

	m_Parent = pParent;
	m_ActualParent = NULL;

	if (m_Parent)
	{
		m_Parent->AddChild(this);
	}
}

void Base::Dock(int iDock)
{
	if (m_iDock == iDock) return;

	m_iDock = iDock;

	Invalidate();
	InvalidateParent();
}

int Base::GetDock()
{
	return m_iDock;
}

bool Base::Hidden() const
{
	return m_bHidden;
}

bool Base::Visible() const
{
	if (Hidden()) return false;
	if (GetParent())
	{
		return GetParent()->Visible();
	}

	return true;
}

void Base::InvalidateChildren(bool bRecursive)
{
	for (Base::List::iterator it = Children.begin(); it != Children.end(); ++it)
	{
		(*it)->Invalidate();

		if (bRecursive)
			(*it)->InvalidateChildren(bRecursive);
	}

	if (m_InnerPanel)
	{
		for (Base::List::iterator it = m_InnerPanel->Children.begin(); it != m_InnerPanel->Children.end(); ++it)
		{
			(*it)->Invalidate();

			if (bRecursive)
				(*it)->InvalidateChildren(bRecursive);
		}
	}
}

void Base::Position(int pos, int xpadding, int ypadding)
{
	int w = GetParent()->Width();
	int h = GetParent()->Height();
	const Padding& padding = GetParent()->GetPadding();

	int x = X();
	int y = Y();

	if (pos & Pos::Left) x = padding.left + xpadding;
	if (pos & Pos::Right) x = w - Width() - padding.right - xpadding;
	if (pos & Pos::CenterH) x = padding.left + xpadding + (w - Width() - padding.left - padding.right) * 0.5;

	if (pos & Pos::Top) y = padding.top + ypadding;
	if (pos & Pos::Bottom) y = h - Height() - padding.bottom - ypadding;
	if (pos & Pos::CenterV) y = padding.top + ypadding + (h - Height() - padding.bottom - padding.top) * 0.5;

	SetPos(x, y);
}

void Base::SendToBack()
{
	if (!m_Parent) return;
	if (m_Parent->Children.front() == this) return;

	m_Parent->Children.remove(this);
	m_Parent->Children.push_front(this);

	InvalidateParent();
}

void Base::BringToFront()
{
	if (!m_Parent) return;
	if (m_Parent->Children.back() == this) return;

	m_Parent->Children.remove(this);
	m_Parent->Children.push_back(this);
	InvalidateParent();
}

Controls::Base* Base::FindChildByName(const Gwen::String& name, bool bRecursive)
{
	Base::List::iterator iter;
	for (iter = Children.begin(); iter != Children.end(); ++iter)
	{
		Base* pChild = *iter;
		if (pChild->GetName() == name)
			return pChild;

		if (bRecursive)
		{
			Controls::Base* pSubChild = pChild->FindChildByName(name, true);

			if (pSubChild)
				return pSubChild;
		}
	}

	return NULL;
}

void Base::BringNextToControl(Controls::Base* pChild, bool bBehind)
{
	if (!m_Parent) return;

	m_Parent->Children.remove(this);

	Base::List::iterator it = std::find(m_Parent->Children.begin(), m_Parent->Children.end(), pChild);
	if (it == m_Parent->Children.end())
		return BringToFront();

	if (bBehind)
	{
		++it;

		if (it == m_Parent->Children.end())
			return BringToFront();
	}

	m_Parent->Children.insert(it, this);
	InvalidateParent();
}

void Base::AddChild(Base* pChild)
{
	if (m_InnerPanel)
	{
		m_InnerPanel->AddChild(pChild);
		return;
	}

	Children.push_back(pChild);
	OnChildAdded(pChild);

	pChild->m_ActualParent = this;
}
void Base::RemoveChild(Base* pChild)
{
	// If we removed our innerpanel
	// remove our pointer to it
	if (m_InnerPanel == pChild)
	{
		m_InnerPanel = NULL;
	}

	if (m_InnerPanel)
	{
		m_InnerPanel->RemoveChild(pChild);
	}

	Children.remove(pChild);
	OnChildRemoved(pChild);
}

void Base::RemoveAllChildren()
{
	while (Children.size() > 0)
	{
		RemoveChild(*Children.begin());
	}
}

int Base::NumChildren()
{
	// Include m_InnerPanel's children here?

	return Children.size();
}

void Base::OnChildAdded(Base* /*pChild*/)
{
	Invalidate();
}

void Base::OnChildRemoved(Base* /*pChild*/)
{
	Invalidate();
}

Skin::Base* Base::GetSkin(void)
{
	if (m_Skin) return m_Skin;
	if (m_Parent) return m_Parent->GetSkin();

	Debug::AssertCheck(0, "Base::GetSkin Returning NULL!\n");
	return NULL;
}

void Base::MoveBy(int x, int y)
{
	SetBounds(X() + x, Y() + y, Width(), Height());
}

void Base::MoveTo(int x, int y)
{
	if (m_bRestrictToParent && GetParent())
	{
		Base* pParent = GetParent();
		if (x - GetPadding().left < pParent->GetMargin().left) x = pParent->GetMargin().left + GetPadding().left;
		if (y - GetPadding().top < pParent->GetMargin().top) y = pParent->GetMargin().top + GetPadding().top;
		if (x + Width() + GetPadding().right > pParent->Width() - pParent->GetMargin().right) x = pParent->Width() - pParent->GetMargin().right - Width() - GetPadding().right;
		if (y + Height() + GetPadding().bottom > pParent->Height() - pParent->GetMargin().bottom) y = pParent->Height() - pParent->GetMargin().bottom - Height() - GetPadding().bottom;
	}

	SetBounds(x, y, Width(), Height());
}

void Base::SetPos(int x, int y)
{
	SetBounds(x, y, Width(), Height());
}

bool Base::SetSize(int w, int h)
{
	return SetBounds(X(), Y(), w, h);
}

bool Base::SetBounds(const Gwen::Rect& bounds)
{
	return SetBounds(bounds.x, bounds.y, bounds.w, bounds.h);
}

bool Base::SetBounds(int x, int y, int w, int h)
{
	if (m_Bounds.x == x &&
		m_Bounds.y == y &&
		m_Bounds.w == w &&
		m_Bounds.h == h)
		return false;

	Gwen::Rect oldBounds = GetBounds();

	m_Bounds.x = x;
	m_Bounds.y = y;

	m_Bounds.w = w;
	m_Bounds.h = h;

	OnBoundsChanged(oldBounds);

	return true;
}

void Base::OnBoundsChanged(Gwen::Rect oldBounds)
{
	//Anything that needs to update on size changes
	//Iterate my children and tell them I've changed
	//

	if (m_Bounds.w != oldBounds.w || m_Bounds.h != oldBounds.h)
	{
		if (GetParent())
			GetParent()->OnChildBoundsChanged(oldBounds, this);
		Invalidate();
	}

	Redraw();
	UpdateRenderBounds();
}

void Base::OnScaleChanged()
{
	for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
	{
		(*iter)->OnScaleChanged();
	}
}

void Base::OnChildBoundsChanged(Gwen::Rect /*oldChildBounds*/, Base* /*pChild*/)
{
}

void Base::Render(Gwen::Skin::Base* /*skin*/)
{
}

void Base::DoCacheRender(Gwen::Skin::Base* skin, Gwen::Controls::Base* pMaster)
{
	Gwen::Renderer::Base* render = skin->GetRender();
	Gwen::Renderer::ICacheToTexture* cache = render->GetCTT();

	if (!cache) return;

	Gwen::Point pOldRenderOffset = render->GetRenderOffset();

	Gwen::Rect rOldRegion = render->ClipRegion();

	if (this != pMaster)
	{
		render->AddRenderOffset(GetBounds());
		render->AddClipRegion(GetBounds());
	}
	else
	{
		render->SetRenderOffset(Gwen::Point(0, 0));
		render->SetClipRegion(GetBounds());
	}

	if (m_bCacheTextureDirty && render->ClipRegionVisible())
	{
		render->StartClip();

		if (ShouldCacheToTexture())
			cache->SetupCacheTexture(this);

		//Render myself first
		Render(skin);

		if (!Children.empty())
		{
			//Now render my kids
			for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
			{
				Base* pChild = *iter;
				if (pChild->Hidden()) continue;

				pChild->DoCacheRender(skin, pMaster);
			}
		}

		if (ShouldCacheToTexture())
		{
			cache->FinishCacheTexture(this);
			m_bCacheTextureDirty = false;
		}
	}

	render->SetClipRegion(rOldRegion);
	render->StartClip();
	render->SetRenderOffset(pOldRenderOffset);
	cache->DrawCachedControlTexture(this);
}

void Base::DoRender(Gwen::Skin::Base* skin)
{
	// If this control has a different skin,
	// then so does its children.
	if (m_Skin)
		skin = m_Skin;

	// Do think
	Think();

	Gwen::Renderer::Base* render = skin->GetRender();

	if (render->GetCTT() && ShouldCacheToTexture())
	{
		DoCacheRender(skin, this);
		return;
	}

	Gwen::Point pOldRenderOffset = render->GetRenderOffset();

	render->AddRenderOffset(GetBounds());

	RenderUnder(skin);

	Gwen::Rect rOldRegion = render->ClipRegion();
	render->AddClipRegion(GetBounds());

	if (render->ClipRegionVisible())
	{
		render->StartClip();

		//Render myself first
		Render(skin);

		if (!Children.empty())
		{
			//Now render my kids
			for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
			{
				Base* pChild = *iter;
				if (pChild->Hidden()) continue;

				pChild->DoRender(skin);
			}
		}

		render->SetClipRegion(rOldRegion);
		render->StartClip();

		RenderOver(skin);
	}
	else
	{
		render->SetClipRegion(rOldRegion);
	}

	RenderFocus(skin);

	render->SetRenderOffset(pOldRenderOffset);
}

void Base::SetSkin(Skin::Base* skin, bool doChildren)
{
	if (m_Skin == skin) return;
	m_Skin = skin;
	Invalidate();
	Redraw();
	OnSkinChanged(skin);

	if (doChildren)
	{
		for (Base::List::iterator it = Children.begin(); it != Children.end(); ++it)
		{
			(*it)->SetSkin(skin, true);
		}
	}
}

void Base::OnSkinChanged(Skin::Base* /*skin*/)
{
	//Do something
}

bool Base::OnMouseWheeled(int iDelta)
{
	if (m_ActualParent)
		return m_ActualParent->OnMouseWheeled(iDelta);

	return false;
}

void Base::OnMouseMoved(int /*x*/, int /*y*/, int /*deltaX*/, int /*deltaY*/)
{
}

void Base::OnMouseEnter()
{
	onHoverEnter.Call(this);

	if (GetToolTip())
		ToolTip::Enable(this);
	else if (GetParent() && GetParent()->GetToolTip())
		ToolTip::Enable(GetParent());
}

void Base::OnMouseLeave()
{
	onHoverLeave.Call(this);
	if (GetToolTip())
		ToolTip::Disable(this);
}

bool Base::IsHovered()
{
	return Gwen::HoveredControl == this;
}

bool Base::ShouldDrawHover()
{
	return Gwen::MouseFocus == this || Gwen::MouseFocus == NULL;
}

bool Base::HasFocus()
{
	return Gwen::KeyboardFocus == this;
}

void Base::Focus()
{
	if (Gwen::KeyboardFocus == this) return;

	if (Gwen::KeyboardFocus)
		Gwen::KeyboardFocus->OnLostKeyboardFocus();

	Gwen::KeyboardFocus = this;

	OnKeyboardFocus();
	Redraw();
}

void Base::Blur()
{
	if (Gwen::KeyboardFocus != this) return;

	Gwen::KeyboardFocus = NULL;
	OnLostKeyboardFocus();

	Redraw();
}

bool Base::IsOnTop()
{
	Base::List::iterator iter = GetParent()->Children.begin();
	Base* pChild = *iter;

	if (pChild == this)
		return true;

	return false;
}

void Base::Touch()
{
	if (GetParent())
		GetParent()->OnChildTouched(this);
}

void Base::OnChildTouched(Controls::Base* /*pChild*/)
{
	Touch();
}

Base* Base::GetControlAt(int x, int y)
{
	if (Hidden())
		return NULL;

	if (x < 0 || y < 0 || x >= Width() || y >= Height())
		return NULL;

	Base::List::reverse_iterator iter;
	for (iter = Children.rbegin(); iter != Children.rend(); ++iter)
	{
		Base* pChild = *iter;
		Base* pFound = NULL;
		pFound = pChild->GetControlAt(x - pChild->X(), y - pChild->Y());
		if (pFound) return pFound;
	}

	if (!GetMouseInputEnabled())
		return NULL;

	return this;
}

void Base::Layout(Skin::Base* skin)
{
	if (skin->GetRender()->GetCTT() && ShouldCacheToTexture())
		skin->GetRender()->GetCTT()->CreateControlCacheTexture(this);
}

int avoidUpdate = -15;

void Base::RecurseLayout(Skin::Base* skin)
{
	if (m_Skin) skin = m_Skin;
	if (Hidden()) return;

	if (NeedsLayout())
	{
		m_bNeedsLayout = false;
		Layout(skin);
	}

	if (avoidUpdate > 0)
		return;

	Gwen::Rect rBounds = GetRenderBounds();

	// Adjust bounds for padding
	rBounds.x += m_Padding.left;
	rBounds.w -= m_Padding.left + m_Padding.right;
	rBounds.y += m_Padding.top;
	rBounds.h -= m_Padding.top + m_Padding.bottom;

	int sz = Children.size();
	if (sz > 100)
	{
		//		printf("!\n");
	}
	int curChild = 0;
	for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
	{
		Base* pChild = *iter;
		curChild++;
		if (pChild->Hidden())
			continue;

		int iDock = pChild->GetDock();

		if (iDock & Pos::Fill)
			continue;

		if (iDock & Pos::Top)
		{
			const Margin& margin = pChild->GetMargin();

			pChild->SetBounds(rBounds.x + margin.left, rBounds.y + margin.top, rBounds.w - margin.left - margin.right, pChild->Height());

			int iHeight = margin.top + margin.bottom + pChild->Height();
			rBounds.y += iHeight;
			rBounds.h -= iHeight;
		}

		if (iDock & Pos::Left)
		{
			const Margin& margin = pChild->GetMargin();

			pChild->SetBounds(rBounds.x + margin.left, rBounds.y + margin.top, pChild->Width(), rBounds.h - margin.top - margin.bottom);

			int iWidth = margin.left + margin.right + pChild->Width();
			rBounds.x += iWidth;
			rBounds.w -= iWidth;
		}

		if (iDock & Pos::Right)
		{
			// TODO: THIS MARGIN CODE MIGHT NOT BE FULLY FUNCTIONAL
			const Margin& margin = pChild->GetMargin();

			pChild->SetBounds((rBounds.x + rBounds.w) - pChild->Width() - margin.right, rBounds.y + margin.top, pChild->Width(), rBounds.h - margin.top - margin.bottom);

			int iWidth = margin.left + margin.right + pChild->Width();
			rBounds.w -= iWidth;
		}

		if (iDock & Pos::Bottom)
		{
			// TODO: THIS MARGIN CODE MIGHT NOT BE FULLY FUNCTIONAL
			const Margin& margin = pChild->GetMargin();

			pChild->SetBounds(rBounds.x + margin.left, (rBounds.y + rBounds.h) - pChild->Height() - margin.bottom, rBounds.w - margin.left - margin.right, pChild->Height());
			rBounds.h -= pChild->Height() + margin.bottom + margin.top;
		}

		pChild->RecurseLayout(skin);
	}

	m_InnerBounds = rBounds;

	curChild = 0;
	//
	// Fill uses the left over space, so do that now.
	//
	for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
	{
		Base* pChild = *iter;
		int iDock = pChild->GetDock();
		curChild++;
		if (!(iDock & Pos::Fill))
			continue;

		const Margin& margin = pChild->GetMargin();

		pChild->SetBounds(rBounds.x + margin.left, rBounds.y + margin.top, rBounds.w - margin.left - margin.right, rBounds.h - margin.top - margin.bottom);
		pChild->RecurseLayout(skin);
	}

	PostLayout(skin);

	if (IsTabable())
	{
		if (!GetCanvas()->FirstTab) GetCanvas()->FirstTab = this;
		if (!GetCanvas()->NextTab) GetCanvas()->NextTab = this;
	}

	if (Gwen::KeyboardFocus == this)
	{
		GetCanvas()->NextTab = NULL;
	}
}

bool Base::IsChild(Controls::Base* pChild)
{
	for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
	{
		if (pChild == (*iter)) return true;
	}

	return false;
}

Gwen::Point Base::LocalPosToCanvas(const Gwen::Point& pnt)
{
	if (m_Parent)
	{
		int x = pnt.x + X();
		int y = pnt.y + Y();

		// If our parent has an innerpanel and we're a child of it
		// add its offset onto us.
		//
		if (m_Parent->m_InnerPanel && m_Parent->m_InnerPanel->IsChild(this))
		{
			x += m_Parent->m_InnerPanel->X();
			y += m_Parent->m_InnerPanel->Y();
		}

		return m_Parent->LocalPosToCanvas(Gwen::Point(x, y));
	}

	return pnt;
}

Gwen::Point Base::CanvasPosToLocal(const Gwen::Point& pnt)
{
	if (m_Parent)
	{
		int x = pnt.x - X();
		int y = pnt.y - Y();

		// If our parent has an innerpanel and we're a child of it
		// add its offset onto us.
		//
		if (m_Parent->m_InnerPanel && m_Parent->m_InnerPanel->IsChild(this))
		{
			x -= m_Parent->m_InnerPanel->X();
			y -= m_Parent->m_InnerPanel->Y();
		}

		return m_Parent->CanvasPosToLocal(Gwen::Point(x, y));
	}

	return pnt;
}

bool Base::IsMenuComponent()
{
	if (!m_Parent) return false;
	return m_Parent->IsMenuComponent();
}

void Base::CloseMenus()
{
	for (Base::List::iterator it = Children.begin(); it != Children.end(); ++it)
	{
		(*it)->CloseMenus();
	}
}

void Base::UpdateRenderBounds()
{
	m_RenderBounds.x = 0;
	m_RenderBounds.x = 0;

	m_RenderBounds.w = m_Bounds.w;
	m_RenderBounds.h = m_Bounds.h;
}

void Base::UpdateCursor()
{
	Platform::SetCursor(m_Cursor);
}

DragAndDrop::Package* Base::DragAndDrop_GetPackage(int /*x*/, int /*y*/)
{
	return m_DragAndDrop_Package;
}

bool Base::DragAndDrop_HandleDrop(Gwen::DragAndDrop::Package* /*pPackage*/, int /*x*/, int /*y*/)
{
	DragAndDrop::SourceControl->SetParent(this);
	return true;
}

bool Base::DragAndDrop_Draggable()
{
	if (!m_DragAndDrop_Package) return false;

	return m_DragAndDrop_Package->draggable;
}

void Base::DragAndDrop_SetPackage(bool bDraggable, const String& strName, void* pUserData)
{
	if (!m_DragAndDrop_Package)
	{
		m_DragAndDrop_Package = new Gwen::DragAndDrop::Package();
	}

	m_DragAndDrop_Package->draggable = bDraggable;
	m_DragAndDrop_Package->name = strName;
	m_DragAndDrop_Package->userdata = pUserData;
}

void Base::DragAndDrop_StartDragging(Gwen::DragAndDrop::Package* pPackage, int x, int y)
{
	pPackage->holdoffset = CanvasPosToLocal(Gwen::Point(x, y));
	pPackage->drawcontrol = this;
}

bool Base::SizeToChildren(bool w, bool h)
{
	Gwen::Point size = ChildrenSize();
	return SetSize(w ? size.x : Width(), h ? size.y : Height());
}

Gwen::Point Base::ChildrenSize()
{
	Gwen::Point size;

	for (Base::List::iterator iter = Children.begin(); iter != Children.end(); ++iter)
	{
		Base* pChild = *iter;
		if (pChild->Hidden()) continue;

		size.x = GwenUtil_Max(size.x, pChild->Right());
		size.y = GwenUtil_Max(size.y, pChild->Bottom());
	}

	return size;
}

void Base::SetPadding(const Padding& padding)
{
	if (m_Padding.left == padding.left &&
		m_Padding.top == padding.top &&
		m_Padding.right == padding.right &&
		m_Padding.bottom == padding.bottom)
		return;

	m_Padding = padding;
	Invalidate();
	InvalidateParent();
}

void Base::SetMargin(const Margin& margin)
{
	if (m_Margin.top == margin.top &&
		m_Margin.left == margin.left &&
		m_Margin.bottom == margin.bottom &&
		m_Margin.right == margin.right)
		return;

	m_Margin = margin;
	Invalidate();
	InvalidateParent();
}

bool Base::HandleAccelerator(Gwen::UnicodeString& accelerator)
{
	if (Gwen::KeyboardFocus == this || !AccelOnlyFocus())
	{
		AccelMap::iterator iter = m_Accelerators.find(accelerator);
		if (iter != m_Accelerators.end())
		{
			iter->second->Call(this);
			return true;
		}
	}

	for (Base::List::iterator it = Children.begin(); it != Children.end(); ++it)
	{
		if ((*it)->HandleAccelerator(accelerator))
			return true;
	}
	return false;
}

bool Base::OnKeyPress(int iKey, bool bPress)
{
	bool bHandled = false;
	switch (iKey)
	{
		case Key::Tab:
			bHandled = OnKeyTab(bPress);
			break;
		case Key::Space:
			bHandled = OnKeySpace(bPress);
			break;
		case Key::Home:
			bHandled = OnKeyHome(bPress);
			break;
		case Key::End:
			bHandled = OnKeyEnd(bPress);
			break;
		case Key::Return:
			bHandled = OnKeyReturn(bPress);
			break;
		case Key::Backspace:
			bHandled = OnKeyBackspace(bPress);
			break;
		case Key::Delete:
			bHandled = OnKeyDelete(bPress);
			break;
		case Key::Right:
			bHandled = OnKeyRight(bPress);
			break;
		case Key::Left:
			bHandled = OnKeyLeft(bPress);
			break;
		case Key::Up:
			bHandled = OnKeyUp(bPress);
			break;
		case Key::Down:
			bHandled = OnKeyDown(bPress);
			break;
		case Key::Escape:
			bHandled = OnKeyEscape(bPress);
			break;

		default:
			break;
	}

	if (!bHandled && GetParent())
		GetParent()->OnKeyPress(iKey, bPress);

	return bHandled;
}

bool Base::OnKeyRelease(int iKey)
{
	return OnKeyPress(iKey, false);
}

bool Base::OnKeyTab(bool bDown)
{
	if (!bDown) return true;

	if (GetCanvas()->NextTab)
	{
		GetCanvas()->NextTab->Focus();
		Redraw();
	}

	return true;
}

void Base::RenderFocus(Gwen::Skin::Base* skin)
{
	if (Gwen::KeyboardFocus != this) return;
	if (!IsTabable()) return;

	skin->DrawKeyboardHighlight(this, GetRenderBounds(), 3);
}

void Base::SetToolTip(const String& strText)
{
	SetToolTip(Gwen::Utility::StringToUnicode(strText));
}

void Base::SetToolTip(const UnicodeString& strText)
{
	Label* tooltip = new Label(this);
	tooltip->SetText(strText);
	tooltip->SizeToContents();

	SetToolTip(tooltip);
}

#ifndef GWEN_NO_ANIMATION

void Base::Anim_WidthIn(float fLength, float fDelay, float fEase)
{
	Gwen::Anim::Add(this, new Gwen::Anim::Size::Width(0, Width(), fLength, false, fDelay, fEase));
	SetWidth(0);
}

void Base::Anim_HeightIn(float fLength, float fDelay, float fEase)
{
	Gwen::Anim::Add(this, new Gwen::Anim::Size::Height(0, Height(), fLength, false, fDelay, fEase));
	SetHeight(0);
}

void Base::Anim_WidthOut(float fLength, bool bHide, float fDelay, float fEase)
{
	Gwen::Anim::Add(this, new Gwen::Anim::Size::Width(Width(), 0, fLength, bHide, fDelay, fEase));
}

void Base::Anim_HeightOut(float fLength, bool bHide, float fDelay, float fEase)
{
	Gwen::Anim::Add(this, new Gwen::Anim::Size::Height(Height(), 0, fLength, bHide, fDelay, fEase));
}

#endif