import"evg.idl";

Public Member Functions
	Text ()

void	set_text (...)

TextMeasure	measure ()

Path	get_path (optional bool centered_coords=true)

Data Fields
attribute Array	font

attribute double	fontsize

attribute unsigned long	align

attribute unsigned long	baseline

attribute boolean	horizontal

attribute boolean	flip

attribute boolean	underline

attribute boolean	bold

attribute boolean	italic

attribute double	maxWidth

attribute double	lineSpacing

Detailed Description

Text object

Constructor & Destructor Documentation

◆ Text()

Text::Text ( )

constructor. The default text is created with a font size of 12, horizontal drawing, start alignment and alphabetic baseline.

Member Function Documentation

◆ set_text()

void Text::set_text ( ... )

sets text. Each argument is processed as follows:

if the argument is an Array, process each item of the array as an element
otherwise process argument as an element

Each element is treated as follows:

transformed to string, whether it is a string, number, object / array
split in one or several text lines, scanning new line character 'CR'
each line of text is then transformed into a graphics path with the current text settings.

◆ measure()

TextMeasure Text::measure ( )

gets metrics for the text lines

Returns: text metrics

◆ get_path()

Path Text::get_path ( optional bool centered_coords = true )

gets a copy of the path data of the text. Usually only needed to do some path outlining of glyphs

Parameters

centered_coords indicate of the path will be drawn on a centered coords surface. This is needed to perform final layout of text

Returns: copy of text path data

Field Documentation

◆ font

attribute Array Text::font

font name - array or single string value. If array, fonts in array will be checked until one is found The text must be set again whenever the font is changing !

◆ fontsize

attribute double Text::fontsize

font name

◆ align

attribute unsigned long Text::align

align flag for horizontal positioning (see Canvas2D). Alignment is computed on maximum text line width after application of maxWidth if any/needed

GF_TEXT_ALIGN_START: left if text is left to right, right otherwise
GF_TEXT_ALIGN_END: right if text is left to right, left otherwise
GF_TEXT_ALIGN_LEFT: left
GF_TEXT_ALIGN_RIGHT: right
GF_TEXT_ALIGN_CENTER: center

◆ baseline

attribute unsigned long Text::baseline

baseline flag for vertical positioning (see Canvas2D):

GF_TEXT_BASELINE_TOP: top of EM box
GF_TEXT_BASELINE_HANGING: hanging (usually not available in fonts)
GF_TEXT_BASELINE_MIDDLE: middle of EM box
GF_TEXT_BASELINE_ALPHABETIC: baseline of font (default value)
GF_TEXT_BASELINE_IDEOGRAPHIC: not supported, same as GF_TEXT_BASELINE_ALPHABETIC.
GF_TEXT_BASELINE_BOTTOM: bottom of EM box

◆ horizontal

attribute boolean Text::horizontal

text is horizontal

◆ flip

attribute boolean Text::flip

text shoud be filpped while drawing

◆ underline

attribute boolean Text::underline

text shoud be underlined while drawing (not supported)

◆ bold

attribute boolean Text::bold

text shoud be bold (used when checking for font alternates)

◆ italic

attribute boolean Text::italic

text shoud be italic (used when checking for font alternates)

◆ maxWidth

attribute double Text::maxWidth

maximum width of text in local coordinate system (with no matrix transformations)

◆ lineSpacing

attribute double Text::lineSpacing

line spacing. If 0, the font's default line spacing is used

Public Member Functions

Data Fields