#include <pugl/pugl.h>
#include "pui.h"

Container::~Container()
{
	std::list<Widget *>::iterator it;
	for (it = children.begin(); it != children.end(); ++it) {
		delete *it;
	}
}

void Container::OnPaint(const PUi *pui) const
{
	if (this->back) {
		float tw = (float)w / pui->w[TEX_BACKTILE];
		float th = (float)h / pui->h[TEX_BACKTILE];

		glEnable(GL_TEXTURE_2D);
		glBindTexture(GL_TEXTURE_2D, pui->tex[TEX_BACKTILE]);
		glBegin(GL_QUADS);
		glColor4f(colour.r, colour.g, colour.b, colour.a);
		glTexCoord2f(.0, .0);
		glVertex2f(    x,     y);
		glTexCoord2f(.0, th);
		glVertex2f(    x, h + y);
		glTexCoord2f(tw, th);
		glVertex2f(w + x, h + y);
		glTexCoord2f(tw, .0);
		glVertex2f(w + x,     y);
		glEnd();

		glBindTexture(GL_TEXTURE_2D, pui->tex[TEX_BACKGLOW]);
		glBegin(GL_QUADS);
		glColor4f(colour.r, colour.g, colour.b, colour.a * 0.3f);
		glTexCoord2f(.0, .0);
		glVertex2f(    x,     y);
		glTexCoord2f(.0, 1);
		glVertex2f(    x, h + y);
		glTexCoord2f(1, 1);
		glVertex2f(w + x, h + y);
		glTexCoord2f(1, .0);
		glVertex2f(w + x,     y);
		glEnd();

		glDisable(GL_TEXTURE_2D);
	} else if (this->colour.a) {
		glBegin(GL_QUADS);
		glColor4f(colour.r, colour.g, colour.b, colour.a);
		glVertex2f(    x,     y);
		glVertex2f(    x, h + y);
		glVertex2f(w + x, h + y);
		glVertex2f(w + x,     y);
		glEnd();
	}

	if (this->frame.a) {
		if (true) {
		glBegin(GL_LINE_LOOP);
		glColor4f(frame.r, frame.g, frame.b, frame.a);
		glVertex2f(    x + .5f,     y + .5f);
		glVertex2f(    x + .5f, h + y - .5f);
		glVertex2f(w + x - .5f, h + y - .5f);
		glVertex2f(w + x - .5f,     y + .5f);
		glEnd();
		} else {
		glBegin(GL_LINE_LOOP);
		glColor4f(1, 1, 1, frame.a);
		glVertex2f(    x + 1.5f,     y + 1.5f);
		glVertex2f(    x + 1.5f, h + y -  .5f);
		glVertex2f(w + x -  .5f, h + y -  .5f);
		glVertex2f(w + x -  .5f,     y + 1.5f);
		glEnd();

		glBegin(GL_LINE_LOOP);
		glColor4f(0, 0, 0, frame.a);
		glVertex2f(    x +  .5f,     y +  .5f);
		glVertex2f(    x +  .5f, h + y - 1.5f);
		glVertex2f(w + x - 1.5f, h + y - 1.5f);
		glVertex2f(w + x - 1.5f,     y +  .5f);
		glEnd();

		}
	}

	std::list<Widget *>::const_iterator it;
	for (it = children.begin(); it != children.end(); ++it) {
		(*it)->OnPaint(pui);
	}
}

Widget *Container::GetWidget(int x, int y)
{
	std::list<Widget *>::iterator it;
	for (it = children.begin(); it != children.end(); ++it) {
		if ((*it)->Hit(x, y)) return (*it)->GetWidget(x, y);
	}
	return NULL;
}

Widget *Container::GetWidget(uint32_t port)
{
	if (this->port == port) return this;

	std::list<Widget *>::iterator it;
	for (it = children.begin(); it != children.end(); ++it) {
		Widget *w = (*it)->GetWidget(port);
		if (w) return w;
	}
	return NULL;

}

void Container::Pack(Widget *widget)
{
	this->children.push_back(widget);
}

void HBox::Pack(Widget *widget)
{
	Widget *last = this->children.empty() ? NULL : this->children.back();
	widget->x = (last == NULL) ? this->x : (last->x + last->w + this->padding);
	widget->y = this->y;
	widget->h = this->h;
	if (widget->w < 0) widget->w = this->w - (widget->x - this->x);
	Container::Pack(widget);
}

void VBox::Pack(Widget *widget)
{
	Widget *last = this->children.empty() ? NULL : this->children.back();
	widget->x = this->x;
	widget->y = (last == NULL) ? this->y : (last->y + last->h + this->padding);
	widget->w = this->w;
	if (widget->h < 0) widget->h = this->h - (widget->y - this->y);
	Container::Pack(widget);
}