// NavBooks.cpp: implementation of the NavBooks class.
//
//////////////////////////////////////////////////////////////////////

#include "ApplicationInterface.h"
#include "NavBooks.h"

#include "Navigator.h"

//RECT RECT_SCREEN = {0,0,240,294};

#define BUTTON_WIDTH 26
#define BUTTON_HEIGHT 17

#define PADDING_WIDTH 3
#define PADDING_HEIGHT 3

#define MAXHORIZONTAL 8

#define ROW0 15
#define ROW1 30
#define ROW2 45
#define STARTNTROW 160
#define LASTROW 240

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

NavBooks::NavBooks(Navigator* navigator) {
	this->navigator=navigator;
	this->position=&(navigator->position);
	this->command=UString(L"Select a book:");
	this->maxOTNumber=position->otBookCount();
	this->maxNumber=position->bookCount();
}

NavBooks::~NavBooks() {
}

void NavBooks::paint() {
	RECT rt;
	memset(&rt,0,sizeof(rt));
	rt.right=RECT_SCREEN.right;

	//to see if the whole screen gets filled
	//rt.bottom=RECT_SCREEN.bottom;
	//setBackground(0x00000000);
	//drawText(&rt,UString(L"test"));
	//setBackground();
	//

	rt.bottom=ROW0;
	clearRect(&rt);

	rt.top=ROW0; rt.bottom=ROW1;
	drawText(&rt,command);

	rt.top=ROW1; rt.bottom=ROW2;
	clearRect(&rt);

	//TCHAR buttonText[4];
	//buttonText[3]=L'\0';
	setBackground(BUTTON_BACKGROUND);
	setFont(FONT_NAVIGATION);
	TCHAR** bookNames=position->getBookNames();
	int current=1;
	int maxTNumber=maxOTNumber;
	while (current<=maxNumber) {
		//Paint one testament
		while (current<=maxTNumber) {
			int rowStart=current;
			rt.top=rt.bottom; rt.bottom=rt.top+BUTTON_HEIGHT; rt.right=0;
			while ((current<=maxTNumber)&&(current-rowStart<MAXHORIZONTAL)) {
				//padding left of button
				rt.left=rt.right;rt.right=rt.left+PADDING_WIDTH;
				clearRect(&rt);
				//button
				rt.left=rt.right;rt.right=rt.left+BUTTON_WIDTH;
				//_itow(current,buttonText,10);
				//wcsncpy(buttonText,(position->bookName(current)).c_str(),3);
				drawText(&rt,bookNames[current-1],3);
				current++;
			}
			//padding right of buttons
			rt.left=rt.right;rt.right=RECT_SCREEN.right;
			clearRect(&rt);
			//padding below buttons
			rt.left=0; rt.top=rt.bottom; rt.bottom=rt.top+PADDING_HEIGHT;
			clearRect(&rt);
		}
		if (current<maxNumber) {
			//space between testaments
			maxTNumber=maxNumber;
			rt.bottom=STARTNTROW;
			clearRect(&rt);
		}

	}
	//space below the buttons
	rt.top=rt.bottom; rt.bottom=RECT_SCREEN.bottom;
	clearRect(&rt);

	setBackground();
	setFont();
}

int NavBooks::userTap(int x, int y) {
	if ((y>=ROW2)&&(y<STARTNTROW)) {
		y=y-ROW2;
		int vertical=(y/(PADDING_HEIGHT+BUTTON_HEIGHT));
		y=y-vertical*(PADDING_HEIGHT+BUTTON_HEIGHT);
		int horizontal=(x/(PADDING_WIDTH+BUTTON_WIDTH));
		if (horizontal<MAXHORIZONTAL) {
			x=x-horizontal*(PADDING_WIDTH+BUTTON_WIDTH);
			//button is in upper right corner
			if ((x>=PADDING_WIDTH)&&(y<=BUTTON_HEIGHT)) {
				int current=vertical*MAXHORIZONTAL+horizontal+1;
				if (current<=maxOTNumber) return current;
			}
		}
	}
	else if (y>=STARTNTROW) {
		y=y-STARTNTROW;
		int vertical=(y/(PADDING_HEIGHT+BUTTON_HEIGHT));
		y=y-vertical*(PADDING_HEIGHT+BUTTON_HEIGHT);
		int horizontal=(x/(PADDING_WIDTH+BUTTON_WIDTH));
		if (horizontal<MAXHORIZONTAL) {
			x=x-horizontal*(PADDING_WIDTH+BUTTON_WIDTH);
			//button is in upper right corner
			if ((x>=PADDING_WIDTH)&&(y<=BUTTON_HEIGHT)) {
				int current=vertical*MAXHORIZONTAL+horizontal+maxOTNumber+1;
				if (current<=maxNumber) return current;
			}
		}
	}
	return -1;
}