#include "menumenu.h"

namespace segl {

MenuMenu::MenuMenu() {
	itempos = 0;
	centermenu = false;
	centerScreenX = false;
	dohighlight = true;
	paintbackground = true;
	basefontsize = 20;
	maxwidth = 0;
	valuewidth = 100;
	offset = 20;
}

void MenuMenu::setPos(const Punkt2D &p) {
	menupos = p;
}

void MenuMenu::setCenter(bool _c) {
	centermenu = _c;
}

void MenuMenu::setCenterScreenX(bool _c) {
	centerScreenX = _c;
}

void MenuMenu::setBaseFontSize(int _bfs) {
	if(_bfs>0)
		basefontsize = _bfs;
}

void MenuMenu::setMaxWidth(int _mw) {
	if(_mw>0)
		maxwidth = _mw;
}

void MenuMenu::setPaintBackground(bool _pbg) {
	paintbackground = _pbg;
}

void MenuMenu::addMenuItem(MenuItem* mi) {
	menuitems.push_back(mi);
}

void MenuMenu::up() {
	do {
		if(itempos==0)
			itempos = menuitems.size()-1;
		else
			itempos--;
	} while(!menuitems[itempos]->isSelectable());
}

void MenuMenu::down() {
	do {
		if((unsigned int)itempos==menuitems.size()-1)
			itempos = 0;
		else
			itempos++;
	} while(!menuitems[itempos]->isSelectable());
}

void MenuMenu::left() {
	menuitems[itempos]->left();
}

void MenuMenu::right() {
	menuitems[itempos]->right();
}

void MenuMenu::select() {
	menuitems[itempos]->select();
}

void MenuMenu::charInput(char c) {
	menuitems[itempos]->charInput(c);
}

void MenuMenu::resetItemPos() {
	dohighlight = true;
	for(itempos = 0; (unsigned int)itempos<menuitems.size()&&!menuitems[itempos]->isSelectable(); itempos++);
	
	if((unsigned int)itempos==menuitems.size()) {
		itempos = 0;
		dohighlight = false;
	}
}

void MenuMenu::render() {
	
	Punkt2D pos = menupos;
	pos.y += offset;
	if(centerScreenX) {
		SDL_Surface *screen = SDL_GetVideoSurface();
		pos.x = screen->w/2;
	}
	
	int clen=0, vlen=0, cvlen=0, height=0, fullvalwidth=0, maxlen=0, extravalwidth=0;
	for(unsigned int i=0; i<menuitems.size(); i++) {
		fontengine.setSize(basefontsize+menuitems[i]->getFontSizeAdd());
		if(menuitems[i]->hasValue()) {
// 			cvlen = std::max(cvlen, fontengine.getTextWidthbyInt(menuitems[i]->getMaxValueLen()));
			cvlen = std::max(cvlen, fontengine.getTextWidth(menuitems[i]->getCaption()));
			vlen = std::max(vlen, fontengine.getTextWidthbyInt(menuitems[i]->getMaxValueLen()) + fontengine.getTextWidth(menuitems[i]->getCaption()) + valuewidth);
			extravalwidth = std::max(extravalwidth, fontengine.getTextWidthbyInt(menuitems[i]->getMaxValueLen()));
// 			if(menuitems[i]->getMaxValueLen()==9)
// 				std::cout << "Moep: " << menuitems[i]->getMaxValueLen() << " * " << fontengine.getTextWidthbyInt(1) << " + " <<  fontengine.getTextWidthbyInt(menuitems[i]->getMaxValueLen()) << " + " << valuewidth << " und das erg: " <<  fontengine.getTextWidthbyInt(menuitems[i]->getMaxValueLen()) + fontengine.getTextWidth(menuitems[i]->getCaption()) + valuewidth<< std::endl;
		} else {
			clen = std::max(clen, fontengine.getTextWidth(menuitems[i]->getCaption()));
		}
// 		std::cout << "moep" << extravalwidth << std::endl;
		height += basefontsize + menuitems[i]->getFontSizeAdd() + offset;
	}
// 	fullvalwidth = clen + vlen + valuewidth;
	maxlen = std::max(clen, cvlen+extravalwidth+(cvlen>0?valuewidth:0));
	
	glDisable(GL_DEPTH_TEST);
	if(paintbackground&&true) {
		// geht noch nicht ganz
		glDisable(GL_TEXTURE_2D);
// 		glBlendFunc(GL_DST_COLOR, GL_SRC_ALPHA);
		glBlendFunc(GL_ONE_MINUS_SRC_ALPHA, GL_SRC_ALPHA);
		glEnable(GL_BLEND);
		
		
		SDL_Rect bgarea = { 0, (int)pos.y, 0, height };
		
		if(vlen>0&&fullvalwidth>=clen) {
			bgarea.x = (int)pos.x-fullvalwidth/2;
			bgarea.w = fullvalwidth;
		} else {
			bgarea.x = (int)pos.x-clen/2;
			bgarea.w = clen;
		}
		bgarea.x = (Sint16)pos.x-maxlen/2;
		bgarea.w = maxlen;
		
		//offset
// 		bgarea.x += offset;
// 		bgarea.y += offset;
		bgarea.w += offset*2;
		bgarea.h += offset;
		
		//Wenn schatten dann hier...
// 		bgarea.x += offset;
// 		bgarea.y += offset;

		bgarea.x -= offset/2;
		bgarea.y -= offset/2;

		glColor4f(0.1f, 0.1f, 0.1f, 0.2f);
		GLFontEngine::paintSDLRect(bgarea);
		bgarea.x -= offset/2;
		bgarea.y -= offset/2;

		glColor4f(0.2f, 0.2f, 0.2f, 0.3f);
		GLFontEngine::paintSDLRect(bgarea);
		glDisable(GL_BLEND);
		
	}

	for(unsigned int i=0; i<menuitems.size(); i++) {
		menuitems[i]->render(pos, centermenu, basefontsize, maxwidth, valuewidth, ((unsigned int)itempos==i)&&dohighlight, clen, cvlen, cvlen+extravalwidth+valuewidth);
		pos.y += basefontsize + menuitems[i]->getFontSizeAdd() + offset;
	}
	glEnable(GL_DEPTH_TEST);
}

} // namespace segl