#include "textbox.h"
#include "layout.h"
#include "common.h"


LYTTextBox::LYTTextBox(LYTLayout &layout) : LYTPane(layout) {
}


void LYTTextBox::dumpToDebug(bool showHeading) {
	if (showHeading)
		qDebug() << "LYTTextBox" << name << "@" << (void*)this;

	LYTPane::dumpToDebug(false);

	qDebug() << "- Text:" << text;
	qDebug() << "- Buffer Length:" << bufferLength;
	qDebug() << "- Material:" << materialName << "- Font:" << fontName;
	qDebug() << "- Alignment:" << alignment << "- Alignment Override:" << alignmentOverride;
	qDebug() << "- Colours:" << colour1 << "--" << colour2;
	qDebug() << "- Font Size:" << fontSizeX << "x" << fontSizeY;
	qDebug() << "- Char Space:" << charSpace << "- Line Space:" << lineSpace;
}



void LYTTextBox::writeToDataStream(QDataStream &out) {
	LYTPane::writeToDataStream(out);

	// lengths are stored in bytes (including zero terminator) not characters
	out << (quint16)((bufferLength + 1) * 2);
	out << (quint16)((text.length() + 1) * 2);

	// calculate the material and font numbers
	int materialNum = m_layout.materials.keys().indexOf(materialName);
	int fontNum = m_layout.m_fontRefs.indexOf(fontName);

	out << (quint16)materialNum;
	out << (quint16)fontNum;

	out << (quint8)alignment;
	out << (quint8)alignmentOverride;

	out.skipRawData(2); // padding

	out << (quint32)0x74; // fixed offset to textbox contents

	WriteRGBA8Color(colour1, out);
	WriteRGBA8Color(colour2, out);

	out << (float)fontSizeX;
	out << (float)fontSizeY;
	out << (float)charSpace;
	out << (float)lineSpace;

	// write the textbox contents
	const ushort *convertedText = text.utf16();
	for (int i = 0; i < text.length(); i++)
		out << (quint16)convertedText[i];
}


void LYTTextBox::readFromDataStream(QDataStream &in) {
	qint64 saveStartPos = in.device()->pos();

	LYTPane::readFromDataStream(in);

	// the lengths are stored in bytes (not characters) and count the
	// zero terminator, and strings are UTF-16 (I think) so we need
	// to take it off here
	in >> (quint16&)bufferLength;
	bufferLength >>= 1;
	bufferLength--;

	quint16 stringLength;
	in >> (quint16&)stringLength;
	stringLength >>= 1;
	stringLength--;

	// read the material and font names
	quint16 materialNum, fontNum;
	in >> (quint16&)materialNum;
	in >> (quint16&)fontNum;

	materialName = m_layout.materials.keys().at(materialNum);
	fontName = m_layout.m_fontRefs.at(fontNum);

	in >> (quint8&)alignment;
	in >> (quint8&)alignmentOverride;

	in.skipRawData(2); // padding

	quint32 stringOffset;
	in >> (quint32&)stringOffset;

	ReadRGBA8Color(colour1, in);
	ReadRGBA8Color(colour2, in);

	in >> (float&)fontSizeX;
	in >> (float&)fontSizeY;
	in >> (float&)charSpace;
	in >> (float&)lineSpace;

	// read the textbox contents
	// subtract 8 to account for BinaryBlockHeader or whatever it's called
	in.device()->seek(saveStartPos + stringOffset - 8);

	ushort *rawText = new ushort[stringLength];

	for (int i = 0; i < stringLength; i++)
		in >> (quint16&)rawText[i];

	text.setUtf16(rawText, stringLength);
	delete[] rawText;
}