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====== Manual for Graphical Browser (rev15)======

foo_uie_graphical_browser.dll (2008/04/20	rev015) 


===What this component does:===

Album cover browser for the active playlist.


===  Caution ===

Settings are per panel so if you delete a panel, the settings for that panel also disappear.


===  Sort ===

Blank -> Whatever works.
-> Sorted by grouped strings.
	
If you want to arrange in the same order as the playlist?>? $num(%gb_playlist_number%,10)


===  Popup ===

== Transparent mode ==
You can apply different level of transparence to every pixel. (e.g.: transparent background with full opacity image and text.)\\
I think that GDI can't be used, please use GDI+ only.\\
Even with GDI+, text rendering without using $gp_set_text_rendering_hint(aa) doesn't look good enough.
		
== Per track ==

Draw order:\\
Popup > Per track(0) > Per track(1) > ...\\
Rendering settings (e.g.: pen, brush, font, ...) can't be set again midway.
		

===  Image cache methods ===

== Old ==

rev011 and older way. Cache images of all items.\\
Image cache is purged when switching playlist.
	
== Default ==

Cache images to the set size.\\
Image cache is not purged when switching playlist.\\
If the image cache reach the limit, it will be purged.


 ==== Variables ====

== %gb_group% ==

[Item], [Popup], [Per track(Popup)]\\
Return the group string. E.g.: If you used $if2(%album%,@skip) to group, it will return %album%.

== %gb_width% ==

[Item]\\
Item width\\
[Popup], [Per track(Popup)]\\
Popup width

== %gb_height% ==

[Item]\\
Item height\\
[Popup], [Per track(Popup)]\\
Popup height

== %gb_focused% ==

[Item], [Popup], [Per track(Popup)]\\
Check whether focus is on the item or not

== %gb_mouse_over% ==

[Item]\\
Check whether mouse cursor is on the item or not\\
[Popup], [Per track(Popup)]\\
Probably always true
		
== %gb_item_index% ==

[Item], [Popup], [Per track(Popup)]\\
Return item index

== %gb_item_count% ==

[Item], [Popup], [Per track(Popup)]\\
Return item count

== %gb_track_count% ==

[Sort], [Item], [Popup], [Per track(Popup)]\\
Return number of songs in an item

== %gb_playlist_number% ==

[Sort], [Item], [Popup]\\
Return position of song in playlist for the first song in an item\\
[Per track(Popup)]\\\
Return position of song in playlist

== %gb_col% ==

[Item], [Popup], [Per track(Popup)]\\
Return item column number

== %gb_row% ==

[Item], [Popup], [Per track(Popup)]\\
Return item row number

== %gb_col_count% ==

[Item], [Popup], [Per track(Popup)]\\
Return number of columns

== %gb_row_count% ==

[Item], [Popup], [Per track(Popup)]\\
Return number of rows

== %gb_isplaying% ==

[Item], [Popup]\\
Return true if a song in the item is playing\\
[Per track (Popup)]\\
Return true if it is playing
	
== %gb_track_index% ==

[Per track (Popup)]\\
Position of track in item (O based)
	
== %gb_length% ==

[Sort], [Item], [Popup], [Per track(Popup)]\\
Total length of item/track
	
== %gb_length_seconds% ==

[Sort], [Item], [Popup], [Per track(Popup)]\\
Total length in seconds of item/track

== %gb_calc_x% ==
== %gb_calc_y% ==
== %gb_calc_width% ==
== %gb_calc_height% ==

[Item], [Popup], [Per track(Popup)]\\
Dimension calculations\\

==== Values change with functions below ====

=== $calc_text ===
=== $gp_calc_string ===
=== $gp_calc_string_path ===
=== $draw_image ===

	

====  About functions: ====

	Functions are divided into GDI and GDI+. They are different in pens, brushes and points.
	For GDI, to set color with "r-g-b", use a base 10 number for each color component;
	otherwise use base 16 number with "rrggbb". For GDI+, to set color with "a-r-g-b",
	use a base 10 number for each color component and alpha channel; otherwise use
	base 16 number with "aarrggbb". If you want to draw some thing with transparency
	or effects like anti-aliasing, use GDI+. Some fonts (probably OpenType fonts with
	PostScript outline) can't be used in GDI+ mode. Full-width hyphen can't be
	displayed right in GDI+ mode.


 ==== GDI function ====

	$set_font(name,size,style)
		Set font
		name - font name
		size - font size
		style - style
			Set multiple styles by combining options
			"b" - bold
			"i" - italic
			"u" - underline
			"s" - strikethrough

	$set_font_color(color)
		Set font color
		color - color

	$draw_text(str,x,y)
		Draw text
		str - string
		x - start point x coordinate
		y - start point y coordinate

	$draw_text(str,x,y,width,height,[option1],[option2],...)
		Draw text within the set limit
		str - string
		x - start point x coordinate
		y - start point y coordinate
		width - drawing width
		height - drawing height
		option - other option
			"bottom" - draw at bottom, needs singleline
			"center" - center aligned
			"end_ellipsis" - if out of limit, append "...."
			"left" - left aligned
			"noclip" - no clip, same as no settings for width and height
			"path_ellipsis" – like end_ellipsis but used for file path
			"right" – right aligned
			"singleline" - display with 1 line
			"top" - draw at top
			"vcenter" - vertical center aligned, needs singleline
			"wordbreak" - display with multiple lines
			"word_ellipsis" - truncates any word that does not fit in the
			rectangle and adds ellipsis.
			Details at http://msdn2.microsoft.com/en-us/library/ms533909.aspx

	$draw_text_blur(str,x,y,strength,[deep])
	$draw_text_blur(str,x,y,width,height,strength,[deep],[option1],[option2],...)
		0 Overview
			Draw blurred text.
		0 Arguments
			str - string
			x - start point x coordinate
			y - start point y coordinate
			strength - Blur strength (1..20)
			deep - enable [1]
			option - see $draw_text

	$calc_text(str)
	$calc_text(str,width,height,[option1],[option2],...)
		Calculate size of str when drawn.
		Arguments are the same as $draw_text except x and y.
		Use %gb_calc_*% to obtain values after this function.

	$set_pen(color)
	$set_pen(color,width)
	$set_pen(color,width,style)
		Pen settings
		color - color
		width - width[1], only effective when using "solid" style
		style - style["solid"]
			"solid" - solid line
			"dash" - dashed line
			"dot" - dotted line
			"dashdot" - line with alternating dashes and dots
			"dashdotdot" - line  with alternating dashes and double dots
			Details at http://msdn2.microsoft.com/en-us/library/m...467(VS.85).aspx

	$set_brush(color)
	$set_brush(color,style)
		Brush settings
		color - color
		style - style: if it is not set, then brush is solid
			"bdiagonal" - A 45-degree upward, left-to-right line pattern
			"cross" - Horizontal and vertical cross pattern
			"diagcross" - 45-degree cross pattern
			"fdiagonal" - A 45-degree downward, left-to-right line pattern
			"horizontal" - Horizontal line pattern
			"vertical" - Vertical line pattern

	$draw_rect(x,y,width,height)
		Draw rectangle using pen
		x - start point x coordinate
		y - start point y coordinate
		width - width
		height - height

	$fill_rect(x,y,width,height)
		Fill rectangle using brush
		x - start point x coordinate
		y - start point y coordinate
		width - width
		height - height

	$fill_draw_rect(x,y,width,height)
		Draw rectangle using pen and brush
		x - start point x coordinate
		y - start point y coordinate
		width - width
		height - height

	$round_rect(x,y,width,height,ellipse_width,ellipse_height)
		Draw round corner rectangle with pen and brush
		x - start point x coordinate
		y - start point y coordinate
		width - width
		height - height
		ellipse_width - ellipse width
		ellipse_height - ellipse height

	$draw_line(x1,y1,x2,y2)
		Draw line using pen, end point is not drawn.
		x1 - start point x coordinate
		y1 - start point y coordinate
		x2 - end point x coordinate
		y2 - end point y coordinate


? GDI+ function
	Because pen, brush, font do not have default values, please set them up with
	$gp_set_* before using.

	$gp_set_pen(argb,width)
	$gp_set_pen(argb,width,style,line_join)
		0 Overview:
		Pen settings
		0 Arguments:
		argb - color
		width - width
		style - style ["solid"]
			"solid" - solid line
			"dash" - dashed line
			"dot" - dotted line
			"dashdot" - line with alternating dashes and dots
			"dashdotdot" - line  with alternating dashes and double dots
		line_join - stroke corner style ["miter"]
			"miter"
			"bevel"
			"round"

	$gp_set_brush(argb)
		0 Overview:
			Monocolor brush setting
		0 Arguments:
			argb - color

	$gp_set_brush(style,argb1,argb2)
		0 Overview:
			Hatch brush settings
		0 Argument:
			style - Style
				Use number in range 0 ~ 53.
				Details at?http://msdn2.microsoft.com/en-us/library/ms534127.aspx
			argb1 - Foreground color.
			argb2 - Background color.
	
	$gp_set_brush(argb1,x1,y1,argb2,x2,y2)
		0 Overview:
			Set brush with linear gradual effect
		0 Arguments:
			argb1 - color 1
			x1 - color 1 x coordinate
			y1 - color 1 y coordinate
			argb2 - color 2
			x2 - color 2 x coordinate
			y2 - color 2 y coordinate

	$gp_set_font(name,size)
	$gp_set_font(name,size,style_1,style_2...)
		0 Overview:
			Font settings
		0 Arguments:
			name - font name
			size - font size
			style - style
				"b" - bold
				"i" - italic
				"bi" - bold and italic
				"u" - underline
				"s" - strikethrough

	$gp_set_string_format(alignment,line_alignment,[trimming])
		0 Overview:
			Text drawing method settings
		0 Arguments:
			alignment - horizontal alignment
				"near" - left
				"center" - center
				"far" - right
			line_alignment - vertical alignment
				"near" - top
				"center" - center
				"far" - bottom
			trimming - Trimming.
				"character"
				"word"
				"ellipsis_character"
				"ellipsis_word"
				"ellipsis_path"

	$gp_set_smoothing_mode(antialias)
		0 Overview:
			Shape anti-alias setting
		0 Arguments:
			antialias - anti-alias
				0 - disable
				1 - enable

	$gp_set_text_rendering_hint(mode)
		0 Overview:		
			Text rendering method setting
		0 Arguments:
			mode - method
				"default" - default
				"sb+" - single bit per pixel grid fit
				"sb" - single bit per pixel
				"aa+" - anti alias grid fit
				"aa" - anti alias
				"ct" - clear type

	$gp_draw_arc(x,y,width,height,start_angle,sweep_angle)
		0 Overview:		
			Draw arc using pen
		0 Arguments:		
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
			start_angle - start angle (degree)
			sweep_angle - end angle (degree)
		0 Settings:
			$gp_set_pen
			$gp_set_smoothing_mode

	$gp_draw_ellipse(x,y,width,height)
		0 Overview:	
			Draw ellipse using pen
		0 Arguments:
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
		0 Settings:
			$gp_set_pen
			$gp_set_smoothing_mode		

	$gp_draw_line(x1,y1,x2,y2)
		0 Overview:	
			Draw line using pen
		0 Arguments:
			x1 - start point x coordinate
			y1 - start point y coordinate
			x2 - end point x coordinate
			y2 - end point y coordinate
		0 Settings:
			$gp_set_pen
			$gp_set_smoothing_mode

	$gp_draw_pie(x,y,width,height,start_angle,sweep_angle)
		0 Overview:	
			Draw pie (fan shape) using pen
		0 Arguments:
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
			start_angle - start angle (degree)
			sweep_angle - end angle (degree)
		0 Settings:
			$gp_set_pen
			$gp_set_smoothing_mode
			
	$gp_draw_rectangle(x,y,width,height)
		0 Overview:
			Draw rectangle using pen
		0 Arguments:
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
		0 Settings:
			$gp_set_pen
			$gp_set_smoothing_mode

	$gp_draw_string(str,x,y)
	$gp_draw_string(str,x,y,width,height)
		0 Overview:
			Draw string using brush
		0 Arguments:
			str - string
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
		0 Settings:
			$gp_set_font
			$gp_set_brush
			$gp_set_text_rendering_hint
			$gp_set_string_format

	$gp_calc_string(str)
	$gp_calc_string(str,width,height)
		0 Overview
			Calculate size of str when drawn

	$gp_fill_ellipse(x,y,width,height)
		0 Overview:
			Fill ellipse using brush
		0 Arguments:
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
		0 Settings:
			$gp_set_brush
			$gp_set_smoothing_mode

	$gp_fill_pie(x,y,width,height,start_angle,sweep_angle)
		0 Overview:		
			Fill pie using brush
		0 Arguments:
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
			start_angle - start angle (degree)
			sweep_angle - end angle (degree)
		0 Settings:
			$gp_set_brush
			$gp_set_smoothing_mode

	$gp_fill_rectangle(x,y,width,height)
		0 Overview:	
			Fill rectangle using brush
		0 Arguments:
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
		0 Settings:
			$gp_set_brush
			$gp_set_smoothing_mode

	$gp_draw_string_path(str,size,mode,x,y)
	$gp_draw_string_path(str,size,mode,x,y,width,height)
		0 Overview:
			Draw string with border.
		0 Arguments:
			str - string
			size - character size, px unit (different from current font size)
			mode - draw mode
				"" - fill and border
				"stroke" - only border
				"fill" - only fill
			x - top left x coordinate
			y - top left y coordinate
			width - width
			height - height
		0 Settings:
			$gp_set_pen
			$gp_set_brush
			$gp_set_font
			$gp_set_string_format
			$gp_set_smoothing_mode
		0 Examples:
			$gp_set_font(Tahoma,9,b)
			$gp_set_pen(ff1500ff,2,,round)
			$gp_set_brush(ffddeeff)
			$gp_set_string_format(center,center)
			$gp_set_smoothing_mode(1)
			$gp_draw_string_path(%gb_group%,16,,0,0,%gb_width%,%gb_height%)

	$gp_calc_string_path(str,size,mode)
	$gp_calc_string_path(str,size,mode,width,height)
		0 Overview
			Calculate size of str with border when drawn


====  Draw image function ====

	$draw_image(x,y,width,height,path)
	$draw_image(x,y,width,height,path,alpha)
	$draw_image(x,y,width,height,path,alpha,option)
	$draw_image(x,y,width,height,path,alpha,option,rotate_flip)
		0 Overview:
			Draw image
		0 Arguments:		
			x - starting point x coordinate
			y - starting point y coordinate
			width - width
			height - height
			path - absolute path to image, wild cards are accepted.
			alpha - degree of opacity[255]
			option - other options[""]
				"nokeepaspect" - don't keep picture aspect ratio
				"top" - draw at the top
				"topright" - draw on the top right
				"right" - draw from the right
				"bottomright" - draw on the bottom right
				"bottom" - draw at the bottom
				"bottomleft" - draw on the bottom left
				"left" - draw from the left
				"topleft" - draw on the top left
			rotate_flip - Rotation and flip [0]
				0 - No rotation = Rotate right 180 degrees,
				flip vertically then horizontally
				1 - Rotate right 90 degrees = Rotate right 270 degrees,
				flip vertically then horizontally
				2 - Rotate right 180 degrees = Flip vertically then
				horizontally
				3 - Rotate right 270 degrees = Rotate right 90 degrees,
				flip vertically then horizontally
				4 - Flip horizontally = Rotate right 180 degrees,
				flip vertically
				5 - Rotate right 90 degrees, flip horizontally = Rotate
				right 270 degrees, flip vertically
				6 - Rotate right 180 degrees, flip horizontally = Flip
				vertically
				7 - Rotate right 270 degrees, flip horizontally = Rotate
				right 90 degrees, flip vertically
		0 Reference
			After executing this function, you can use
			%gb_calc_*% to obtain the real dimensions used.


====  Other functions ====

	$set_size(width,height)
		0 Overview
			Modify popup size, please use it only when drawing the popup.
			Popup size is the upper limits, you can only set to smaller sizes.
			%gb_width%,%gb_height% values are changed accordingly.
			When width or height is 0 or less, popup won't be drawn.
		0 Arguments:
			width - width
			height - height

	$set_org(x,y)
		0 Overview
			Starting point setting
		0 Arguments:
			x - starting point x coordinate
			y - starting point y coordinate

	$set_clip_rect()
	$set_clip_rect(x,y,width,height)
		0 Overview
			Only draw GDI, GDI+, and pictures inside the designated area.
			Cancel this function effect by calling it with no argument.

	$sum(tf)
		0 Overview
			Calculate sum of values designated by TitleFormat.
		0 Arguments:
			tf - TitleFormat
		0 Example: Total number played
			$sum('%play_count%')


	$eval(expression)
		Evaluate the expression and calculate
		expression - expression
			E.g.: $eval(5+3)
			E.g.: $eval({%gp_width%-10}/2)
		? Divide by zero expression returns 0.
		Can be used with sort
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