#include "GUIShaderNodeIO.h"
#include <gui/GUIManager.h>

GUIShaderNodeIO::GUIShaderNodeIO(GUIShaderNode* _parent)
	:mode_input(true), can_drag(false)
{
	Owner = _parent;
	skip_mouse = true;
	arrow = new GUINodePort();
	arrow->SetWidth(14);
	arrow->SetHeight(10);
	arrow->SetBackColor(Vec4f(0,0,1,1));
	arrow->user_data = this;
	arrow->SetMode(mode_input);
	AddChild(arrow);

	caption = new GUIText();
	caption->SetAutoSize(true);
	caption->SetText("UV");
	caption->SetBackColor(Vec4f(1,1,1,0.1f));
	caption->SetForeColor(Vec4f(0,0,0,1.0f));
	AddChild(caption);

	arrow->Event_MouseDown += NewDelegate(this, &GUIShaderNodeIO::OnArrowPress);
    arrow->Event_MouseClick += NewDelegate(this, &GUIShaderNodeIO::OnArrowClick);
	arrow->Event_Link += NewDelegate(this, &GUIShaderNodeIO::AcceptLink);
}
Vec2i GUIShaderNodeIO::GetAttachPoint()
{
	Vec2i pos = arrow->GetPositionAbs();
	pos.Y += arrow->GetHeight() / 2;

	if(IsInput())
	{
		pos.X += arrow->GetWidth();
	}
	return pos;
}
GUIShaderNodeIO::~GUIShaderNodeIO()
{
}
void GUIShaderNodeIO::AcceptLink(GUINodePort* me, GUINodePort* other)
{
	Event_Link.Invoke(this, reinterpret_cast<GUIShaderNodeIO*>(other->user_data));
}
void GUIShaderNodeIO::SetCaption(const String& _caption)
{
	caption->SetText(_caption);
}
void GUIShaderNodeIO::SetMode(bool input)
{
	mode_input = input;
	arrow->SetMode(mode_input);
}
void GUIShaderNodeIO::Update(float dt)
{
}
void GUIShaderNodeIO::RenderSelf()
{
	int caption_offset = 3;

	if(this->GetWidth() != (caption->GetWidth() + arrow->GetWidth() + caption_offset))
	{
		this->SetWidth(caption->GetWidth() + arrow->GetWidth() + caption_offset);
	}

	int h = 0;
	if(caption->GetHeight() > arrow->GetHeight())
		h = caption->GetHeight();
	else
		h = arrow->GetHeight();

	if(this->GetHeight() != h)
		this->SetHeight(h);

	if(mode_input)
	{
		arrow->SetPosition(Vec2i(0,(caption->GetHeight() - arrow->GetHeight()) / 2 ));
		caption->SetPosition(Vec2i(arrow->GetWidth() + caption_offset, 0));
	}
	else
	{
		caption->SetPosition(Vec2i(0,0));
		arrow->SetPosition(Vec2i(caption->GetWidth() + caption_offset, (caption->GetHeight() - arrow->GetHeight()) / 2 ));
	}
}
void GUIShaderNodeIO::SetBackColor(const Vec4f& color)
{
}
void GUIShaderNodeIO::OnArrowPress(GUIWindow* w, int arg)
{
    if(arg == KEY_MOUSE_LEFT)
	    can_drag = true;
}
 void GUIShaderNodeIO::OnArrowClick(GUIWindow* w, int arg)
 {
     Event_PortClick.Invoke(this, arg);
 }