#ifndef ITEM_LABEL_H
#define ITEM_LABEL_H
#include "../item.qc"
CLASS(Label, Item)
	METHOD(Label, configureLabel, void(entity, string, float, float));
	METHOD(Label, draw, void(entity));
	METHOD(Label, resizeNotify, void(entity, vector, vector, vector, vector));
	METHOD(Label, setText, void(entity, string));
	METHOD(Label, toString, string(entity));
	METHOD(Label, recalcPositionWithText, void(entity, string));
	ATTRIB(Label, isBold, float, 0)
	ATTRIB(Label, text, string, string_null)
	ATTRIB(Label, currentText, string, string_null)
	ATTRIB(Label, fontSize, float, 8)
	ATTRIB(Label, align, float, 0.5)
	ATTRIB(Label, allowCut, float, 0)
	ATTRIB(Label, allowColors, float, 0)
	ATTRIB(Label, keepspaceLeft, float, 0) // for use by subclasses (radiobuttons for example)
	ATTRIB(Label, keepspaceRight, float, 0)
	ATTRIB(Label, marginLeft, float, 0) // alternate way to specify keepspace* (in characters from the font)
	ATTRIB(Label, marginRight, float, 0)
	ATTRIB(Label, realFontSize, vector, '0 0 0')
	ATTRIB(Label, realOrigin, vector, '0 0 0')
	ATTRIB(Label, alpha, float, 0.7)
	ATTRIB(Label, colorL, vector, SKINCOLOR_TEXT)
	ATTRIB(Label, disabled, float, 0)
	ATTRIB(Label, disabledAlpha, float, 0.3)
	ATTRIB(Label, textEntity, entity, NULL)
	ATTRIB(Label, allowWrap, float, 0)
	ATTRIB(Label, recalcPos, float, 0)
	ATTRIB(Label, condenseFactor, float, 1)
	ATTRIB(Label, overrideRealOrigin, vector, '0 0 0')
	ATTRIB(Label, overrideCondenseFactor, float, 0)
ENDCLASS(Label)
#endif

#ifdef IMPLEMENTATION
string Label_toString(entity me)
{
	return me.text;
}
void Label_setText(entity me, string txt)
{
	me.text = txt;
	if(txt != me.currentText)
	{
		if(me.currentText)
			strunzone(me.currentText);
		me.currentText = strzone(txt);
		me.recalcPos = 1;
	}
}
void Label_recalcPositionWithText(entity me, string t)
{
	float spaceAvail;
	spaceAvail = 1 - me.keepspaceLeft - me.keepspaceRight;

	if(me.isBold)
		draw_beginBoldFont();

	float spaceUsed;
	spaceUsed = draw_TextWidth(t, me.allowColors, me.realFontSize);

	if(spaceUsed <= spaceAvail)
	{
		if(!me.overrideRealOrigin_x)
			me.realOrigin_x = me.align * (spaceAvail - spaceUsed) + me.keepspaceLeft;
		if(!me.overrideCondenseFactor)
			me.condenseFactor = 1;
	}
	else if(me.allowCut || me.allowWrap)
	{
		if(!me.overrideRealOrigin_x)
			me.realOrigin_x = me.keepspaceLeft;
		if(!me.overrideCondenseFactor)
			me.condenseFactor = 1;
	}
	else
	{
		if(!me.overrideRealOrigin_x)
			me.realOrigin_x = me.keepspaceLeft;
		if(!me.overrideCondenseFactor)
			me.condenseFactor = spaceAvail / spaceUsed;
		dprintf("NOTE: label text %s too wide for label, condensed by factor %f\n", t, me.condenseFactor);
	}

	if(!me.overrideRealOrigin_y)
	{
		float lines;
		vector dfs;
		vector fs;

		// set up variables to draw in condensed size, but use hinting for original size
		fs = me.realFontSize;
		fs.x *= me.condenseFactor;

		dfs = draw_fontscale;
		draw_fontscale.x *= me.condenseFactor;

		if(me.allowCut) // FIXME allowCut incompatible with align != 0
			lines = 1;
		else if(me.allowWrap) // FIXME allowWrap incompatible with align != 0
		{
			getWrappedLine_remaining = me.text;
			lines = 0;
			while(getWrappedLine_remaining)
			{
				if (me.allowColors)
					getWrappedLine((1 - me.keepspaceLeft - me.keepspaceRight), fs, draw_TextWidth_WithColors);
				else
					getWrappedLine((1 - me.keepspaceLeft - me.keepspaceRight), fs, draw_TextWidth_WithoutColors);
				++lines;
			}
		}
		else
			lines = 1;

		draw_fontscale = dfs;

		me.realOrigin_y = 0.5 * (1 - lines * me.realFontSize.y);
	}

	if(me.isBold)
		draw_endBoldFont();

	me.recalcPos = 0;
}
void Label_resizeNotify(entity me, vector relOrigin, vector relSize, vector absOrigin, vector absSize)
{
	SUPER(Label).resizeNotify(me, relOrigin, relSize, absOrigin, absSize);

	// absSize_y is height of label
	me.realFontSize_y = me.fontSize / absSize.y;
	me.realFontSize_x = me.fontSize / absSize.x;
	if(me.marginLeft)
		me.keepspaceLeft = me.marginLeft * me.realFontSize.x;
	if(me.marginRight)
		me.keepspaceRight = me.marginRight * me.realFontSize.x;

	me.recalcPos = 1;
}
void Label_configureLabel(entity me, string txt, float sz, float algn)
{
	me.fontSize = sz;
	me.align = algn;
	me.setText(me, txt);
}
void Label_draw(entity me)
{
	string t;
	vector o;
	if(me.disabled)
		draw_alpha *= me.disabledAlpha;

	if(me.textEntity)
	{
		t = me.textEntity.toString(me.textEntity);
		if(t != me.currentText)
		{
			if(me.currentText)
				strunzone(me.currentText);
			me.currentText = strzone(t);
			me.recalcPos = 1;
		}
	}
	else
		t = me.text;

	if(me.recalcPos)
		me.recalcPositionWithText(me, t);

	if(me.fontSize)
		if(t)
		{
			vector dfs;
			vector fs;

			if(me.isBold)
				draw_beginBoldFont();

			// set up variables to draw in condensed size, but use hinting for original size
			fs = me.realFontSize;
			fs.x *= me.condenseFactor;

			dfs = draw_fontscale;
			draw_fontscale.x *= me.condenseFactor;

			if(me.allowCut) // FIXME allowCut incompatible with align != 0
				draw_Text(me.realOrigin, draw_TextShortenToWidth(t, (1 - me.keepspaceLeft - me.keepspaceRight), me.allowColors, fs), fs, me.colorL, me.alpha, me.allowColors);
			else if(me.allowWrap) // FIXME allowWrap incompatible with align != 0
			{
				getWrappedLine_remaining = t;
				o = me.realOrigin;
				while(getWrappedLine_remaining)
				{
					if (me.allowColors)
						t = getWrappedLine((1 - me.keepspaceLeft - me.keepspaceRight), fs, draw_TextWidth_WithColors);
					else
						t = getWrappedLine((1 - me.keepspaceLeft - me.keepspaceRight), fs, draw_TextWidth_WithoutColors);
					draw_Text(o, t, fs, me.colorL, me.alpha, me.allowColors);
					o.y += me.realFontSize.y;
				}
			}
			else
				draw_Text(me.realOrigin, t, fs, me.colorL, me.alpha, me.allowColors);

			draw_fontscale = dfs;

			if(me.isBold)
				draw_endBoldFont();
		}

	SUPER(Label).draw(me);
}
#endif