<krpano>
	<!--
		showtext() xml plugin
		- showtext() and <textstyle> support for HTML5
		- extended <textstyle> functionality compared to the build-in showtext() action
		- just include this xml file via: <include url="showtext.xml" />
		- docu: http://krpano.com/plugins/showtext/
		- krpano 1.18
	-->


	<!-- predefine a DEFAULT textstyle element -->
	<textstyle name="DEFAULT" />


	<!-- the automatic running (autorun=preinit) install action -->
	<action name="showtext_install" autorun="preinit">
		<!-- redirect the build-in 'showtext' action to the 'showtext_xml' action: -->
		set(showtext, action(showtext_xml,'%%1','%%2') );

		<!-- initialize internal variables -->
		set(showtext_style, DEFAULT);
		set(showtext_prevstyle, null);
		set(showtext_text, '');
		set(showtext_prevtext, '');
		set(showtext_timeout, 0.1);
		set(showtext_fadeout, 0.0);
		set(showtext_clipping, false);
	</action>
	

	<action name="showtext_xml">
		set(showtext_style, DEFAULT);
		if('%2' != 'null', ifnot(textstyle['%2'], trace('textstyle "%2" not found'); , set(showtext_style,'%2')); );

		set(showtext_text, '%1');
		if(showtext_text != showtext_prevtext,
			copy(showtext_prevtext, showtext_text);
			showtext_createnewtext();
		  ,
			delayedcall(showtext_timer, get(showtext_timeout), showtext_hide() );
		  );
	</action>


	<action name="showtext_createnewtext">
		<!-- stop running mouse and alpha update calls -->
		stopdelayedcall(showtext_mouseupdates);
		stoptween(layer[showtext_tf].alpha);

		<!-- remove the old textfield when the style has changed -->
		if(showtext_style != showtext_prevstyle,
			copy(showtext_prevstyle, showtext_style);
			removelayer(showtext_tf);
		  );

		<!-- create a new textfield plugin layer -->
		addlayer(showtext_tf);

		<!-- create 'shortcut' variables (tf,ts) for faster access -->
		copy(tf, layer[showtext_tf]);
		copy(ts, textstyle[get(showtext_style)]);

		<!-- get the position settings -->
		if(ts.origin  !== null, copy(ts_origin,  ts.origin),  set(ts_origin, 'cursor'));
		if(ts.edge    !== null, copy(ts_edge,    ts.edge),    set(ts_edge, 'bottom'));
		if(ts.xoffset !== null, copy(ts_xoffset, ts.xoffset), set(ts_xoffset, 0));
		if(ts.yoffset !== null, copy(ts_yoffset, ts.yoffset), set(ts_yoffset, -3));

		<!-- set the position settings -->
		if(ts_origin == 'cursor',
			set(tf.align, 'lefttop');
			showtext_movetomouse();
		  ,
			copy(tf.align, ts_origin);
		  );
		copy(tf.edge, ts_edge);
		copy(tf.ox, ts_xoffset);
		copy(tf.oy, ts_yoffset);

		<!-- get the font settings -->
		if(ts.font      !== null, copy(ts_font,      ts.font),      set(ts_font, 'Times'));
		if(ts.fontsize  !== null, copy(ts_fontsize,  ts.fontsize),  set(ts_fontsize, 12.0));
		if(ts.bold      !== null, copy(ts_bold,      ts.bold),      set(ts_bold, true));
		if(ts.italic    !== null, copy(ts_italic,    ts.italic),    set(ts_italic, false));
		if(ts.textcolor !== null, copy(ts_textcolor, ts.textcolor), set(ts_textcolor, 0x000000));
		if(ts.textalign !== null, copy(ts_textalign, ts.textalign), set(ts_textalign, 'left'));

		<!-- use the font settings to build the CSS style -->
		set(tf_css, '');
		tohex(ts_textcolor, '#', 6);
		txtadd(tf_css, 'font-family:',get(ts_font),'; font-size:',get(ts_fontsize),'px; color:',get(ts_textcolor),'; ');
		if(ts_textalign != 'none', txtadd(tf_css, get(tf_css), 'text-align:',get(ts_textalign),'; '));
		if(ts_bold,   txtadd(tf_css, 'font-weight:bold; '));
		if(ts_italic, txtadd(tf_css, 'font-style:italic; '));
		if(ts.css !== null, txtadd(tf_css, get(ts.css)));
		copy(tf.css, tf_css);

		<!-- size settings -->
		if(ts.width   !== null, copy(tf.width,   ts.width));
		if(ts.height  !== null, copy(tf.height,  ts.height));
		if(ts.vcenter !== null, copy(tf.vcenter, ts.vcenter));
		if(ts.padding !== null, copy(tf.padding, ts.padding), set(tf.padding,1));

		<!-- background, border, shadow settings -->
		if(ts.background      !== null, copy(tf.background,      ts.background));
		if(ts.backgroundcolor !== null, copy(tf.backgroundcolor, ts.backgroundcolor));
		if(ts.backgroundalpha !== null, copy(tf.backgroundalpha, ts.backgroundalpha));
		if(ts.border          !== null, copy(tf.border,          ts.border), set(tf.border,true));
		if(ts.bordercolor     !== null, copy(tf.bordercolor,     ts.bordercolor));
		if(ts.borderalpha     !== null, copy(tf.borderalpha,     ts.borderalpha));
		if(ts.borderwidth     !== null, copy(tf.borderwidth,     ts.borderwidth));
		if(ts.roundedge       !== null, copy(tf.roundedge,       ts.roundedge));
		if(ts.shadow          !== null, copy(tf.shadow,          ts.shadow));
		if(ts.shadowrange     !== null, copy(tf.shadowrange,     ts.shadowrange));
		if(ts.shadowangle     !== null, copy(tf.shadowangle,     ts.shadowangle));
		if(ts.shadowcolor     !== null, copy(tf.shadowcolor,     ts.shadowcolor));
		if(ts.shadowalpha     !== null, copy(tf.shadowalpha,     ts.shadowalpha));
		if(ts.textshadow      !== null, copy(tf.textshadow,      ts.textshadow));
		if(ts.textshadowrange !== null, copy(tf.textshadowrange, ts.textshadowrange));
		if(ts.textshadowangle !== null, copy(tf.textshadowangle, ts.textshadowangle));
		if(ts.textshadowcolor !== null, copy(tf.textshadowcolor, ts.textshadowcolor));
		if(ts.textshadowalpha !== null, copy(tf.textshadowalpha, ts.textshadowalpha));

		<!-- showing settings -->
		if(ts.alpha      !== null, copy(ts_alpha,      ts.alpha),      set(ts_alpha, 1.0));
		if(ts.showtime   !== null, copy(ts_showtime,   ts.showtime),   set(ts_showtime, 0.1));
		if(ts.fadetime   !== null, copy(ts_fadetime,   ts.fadetime),   set(ts_fadetime, 0.0));
		if(ts.fadeintime !== null, copy(ts_fadeintime, ts.fadeintime), set(ts_fadeintime, 0.0));
		copy(showtext_timeout, ts_showtime);
		copy(showtext_fadeout, ts_fadetime);
		if(ts_fadeintime GT 0,
			set(tf.alpha, 0.0);
			tween(layer[showtext_tf].alpha, get(ts_alpha), get(ts_fadeintime), linear);
		  ,
			copy(tf.alpha, ts_alpha);
		  );

		if(ts.noclip !== null, copy(showtext_clipping,ts.noclip), set(showtext_clipping, true));
		
		if(showtext_clipping,
			set(tf.onloaded,    showtext_do_clipping() );
			set(tf.onautosized, showtext_do_clipping() );
		  );

		<!-- special flash-only settings -->
		if(ts.embeddedfonts !== null, copy(tf.embeddedfonts, ts.embeddedfonts));
		if(ts.effect        !== null, copy(tf.effect,        ts.effect));
		if(ts.blendmode     !== null, copy(tf.blendmode,     ts.blendmode));

		<!-- set the text and the basic settings to start showing the textfield -->
		copy(tf.html, showtext_text);
		set(tf.enabled, false);
		set(tf.zorder, 999999);
		if(ts.parent, copy(tf.parent, ts.parent) );
		set(tf.url, '%SWFPATH%/plugins/textfield.swf');
		
		<!-- remove the shortcut variables -->
		delete(ts);
		delete(tf);

		<!-- start the text-hiding timer -->
		delayedcall(showtext_timer, get(showtext_timeout), showtext_hide() );
	</action>


	<action name="showtext_do_clipping">
		if(showtext_clipping,
			layer[showtext_tf].updatepos();
			copy(tf_px, layer[showtext_tf].pixelx);
			copy(tf_py, layer[showtext_tf].pixely);
			if(tf_px LT 0,
				sub(layer[showtext_tf].x, tf_px);
			  ,
				add(tf_rightedge, tf_px, layer[showtext_tf].pixelwidth);
				if(tf_rightedge GE stagewidth, sub(tf_rightedge,stagewidth); sub(layer[showtext_tf].x,tf_rightedge); );
			  );
			if(tf_py LT 0,
				sub(layer[showtext_tf].y,  tf_py);
			  ,
				add(tf_bottomedge, tf_py, layer[showtext_tf].pixelheight);
				if(tf_bottomedge GE stageheight, sub(tf_bottomedge,stageheight); sub(layer[showtext_tf].y,tf_bottomedge); );
			  );
		  );
	</action>


	<action name="showtext_movetomouse">
		copy(layer[showtext_tf].x, mouse.stagex);
		copy(layer[showtext_tf].y, mouse.stagey);

		showtext_do_clipping();

		delayedcall(showtext_mouseupdates, 0, showtext_movetomouse() );
	</action>


	<action name="showtext_hide">
		if(layer[showtext_tf],
			tween(layer[showtext_tf].alpha, 0.0, get(showtext_fadeout), linear,
					stopdelayedcall(showtext_mouseupdates);
					removelayer(showtext_tf);
					set(showtext_text, '');
					set(showtext_prevtext, '');
				);
		  );
	</action>

</krpano>
