#include "GLGuiButton.h"

GLGuiButton::GLGuiButton()
{
	texture.initLoader();
	posX = 0;
	posY = 0;
	width = 0;
	heigth = 0;
	text = "";
	texturePath = "";
	click = false;
	button = GLUT_LEFT_BUTTON;
	state = GLUT_DOWN;
}

GLGuiButton::~GLGuiButton()
{
	//Nothing
}

// === Fonction principal ===
void GLGuiButton::GLGuiButtonInit()
{
	GLfloat infoViewport[4];
	glGetFloatv(GL_VIEWPORT, infoViewport);

	glMatrixMode(GL_PROJECTION);
	glPushMatrix();
		glLoadIdentity();
		gluOrtho2D(0.0, infoViewport[2], 0.0, infoViewport[3]);

		glMatrixMode(GL_MODELVIEW);
   		glPushMatrix();
   			glLoadIdentity();
   			glDisable(GL_DEPTH_TEST);
}

void GLGuiButton::GLGuiButtonClose()
{
	glMatrixMode(GL_PROJECTION);
	glPopMatrix();

	glMatrixMode(GL_MODELVIEW);
	glPopMatrix();

	glEnable(GL_DEPTH_TEST);
}

void GLGuiButton::GLGuiButtonDraw(int x, int y, int w, int h, void *font_name, string txt, string pathTexture)
{
	posX = x;
	posY = y;
	width = w;
	heigth = h;
	text = txt;
	font = font_name;
	texturePath = pathTexture;

	glEnable(GL_TEXTURE_2D);

	texture.loadPNG(pathTexture);
	glBindTexture(GL_TEXTURE_2D, texture.getTexture());
	glBegin(GL_QUADS);
		glTexCoord2i(0, 0);	glVertex2i(posX, posY);
		glTexCoord2i(0, 1);	glVertex2i(posX, posY+heigth);
		glTexCoord2i(1, 1);	glVertex2i(posX+width, posY+heigth);
		glTexCoord2i(1, 0);	glVertex2i(posX+width, posY);
	glEnd();

}

void GLGuiButton::GLGuiButtonManageMouse(int mousse_button, int mouse_state, int mouse_x, int mouse_y, GLfloat vue)
{
	if(mousse_button != button || mouse_state != state)	//Vérifie que le bouton droite et cliqué
		return;

	GLint hits;
	GLuint slcbuffer[512];
	GLfloat infoViewport[4];


	glGetFloatv(GL_VIEWPORT, infoViewport);
	glSelectBuffer(512, slcbuffer);
	(void) glRenderMode(GL_SELECT);	//Entre de le mode de selection (rien n'est dessiné)
	glInitNames();	//initialise la pile de nom
	glPushName(0);	//Met la pile de nom a 0

	glMatrixMode(GL_PROJECTION);
	glPushMatrix();
	glLoadIdentity();
	gluPickMatrix((GLdouble) mouse_x, (GLdouble) (infoViewport[3]-mouse_y), 5.0, 5.0, (GLint*) infoViewport);
	gluOrtho2D(0.0, infoViewport[2], 0.0, infoViewport[3]);

	glMatrixMode(GL_MODELVIEW);

	glLoadName(1);
		GLGuiButtonDraw(posX, posY, width, heigth, font, text, texturePath);
	glPopName();

	glMatrixMode(GL_PROJECTION);
	glPopMatrix();
	glMatrixMode(GL_MODELVIEW);

	hits=glRenderMode(GL_RENDER);
	cout<<texturePath<<" : "<<hits<<endl;
	if(hits>0)
	{
		cout<<"[O.K] -> "<<texturePath<<endl;
	}
}

// ===Fonction secondaire===
void GLGuiButton::GLGuiButtonSetWidth(int w)
{
	width = w;
}

void GLGuiButton::GLGuiButtonSetHeigth(int h)
{
	heigth = h;
}

void GLGuiButton::GLGuiButtonSetX(int x)
{
	posX = x;
}

void GLGuiButton::GLGuiButtonSetY(int y)
{
	posY = y;
}

void GLGuiButton::GLGuiButtonSetText(string txt)
{
	text = txt;
}

void GLGuiButton::GLGuiButtonSetMouseButton(int b)
{
	button = b;
}

void GLGuiButton::GLGuiButtonSetMouseState(int s)
{
	state = s;
}


// ===Fonction Tersiere ===
int GLGuiButton::GLGuiButtonGetWidth()
{
	return width;
}

int GLGuiButton::GLGuiButtonGetHeigth()
{
	return heigth;
}

int GLGuiButton::GLGuiButtonGetX()
{
	return posX;
}

int GLGuiButton::GLGuiButtonGetY()
{
	return posY;
}

string GLGuiButton::GLGuiButtonGetText()
{
	return text;
}

bool GLGuiButton::GLGuiButtonClicked()
{
	return click;
}