Libraries:Gtk:Pango:GlyphString
Types
T
Constants
Nil : T
Functions
GetType() : Gtk.GObject.Type.T
New() : Gtk.Pango.GlyphString.T
Methods
:"="(_ @ T, _ @ T)
:Copy(self @ T) : Gtk.Pango.GlyphString.T
Copy a glyph string and associated storage.
string | a T, may be NULL |
Returns | the newly allocated T, which should be freed with Free, or NULL if string was NULL. |
:Extents(self @ T, font @ Gtk.Pango.Font.T, ink_rect @ Gtk.Pango.Rectangle.T, logical_rect @ Gtk.Pango.Rectangle.T) : Std.Object.T
Compute the logical and ink extents of a glyph string. See the documentation for Gtk.Pango.Font.GetGlyphExtents for details about the interpretation of the rectangles.
glyphs | a T |
font | a Gtk.Pango.Font.T |
ink_rect | rectangle used to store the extents of the glyph string as drawn or NULL to indicate that the result is not needed. [out][allow-none] |
logical_rect | rectangle used to store the logical extents of the glyph string or NULL to indicate that the result is not needed. [out][allow-none] |
:ExtentsRange(self @ T, start @ Std.Integer.SmallT, end @ Std.Integer.SmallT, font @ Gtk.Pango.Font.T, ink_rect @ Gtk.Pango.Rectangle.T, logical_rect @ Gtk.Pango.Rectangle.T) : Std.Object.T
Computes the extents of a sub-portion of a glyph string. The extents are relative to the start of the glyph string range (the origin of their coordinate system is at the start of the range, not at the start of the entire glyph string).
glyphs | a T |
start | start index |
end | end index (the range is the set of bytes with indices such that start <= index < end) |
font | a Gtk.Pango.Font.T |
ink_rect | rectangle used to store the extents of the glyph string range as drawn or NULL to indicate that the result is not needed. |
logical_rect | rectangle used to store the logical extents of the glyph string range or NULL to indicate that the result is not needed. |
:Free(self @ T) : Std.Object.T
:GetLogicalWidths(self @ T, text @ Std.String.T, length @ Std.Integer.SmallT, embedding_level @ Std.Integer.SmallT, logical_widths @ Std.Object.T) : Std.Object.T
Given a T resulting from pango_shape() and the corresponding text, determine the screen width corresponding to each character. When multiple characters compose a single cluster, the width of the entire cluster is divided equally among the characters.
See also Gtk.Pango.GlyphItem.GetLogicalWidths.
glyphs | a T |
text | the text corresponding to the glyphs |
length | the length of text, in bytes |
embedding_level | the embedding level of the string |
logical_widths | an array whose length is the number of characters in text (equal to g_utf8_strlen (text, length) unless text has NUL bytes) to be filled in with the resulting character widths. |
:GetWidth(self @ T) : Std.Integer.SmallT
Computes the logical width of the glyph string as can also be computed using Extents. However, since this only computes the width, it's much faster. This is in fact only a convenience function that computes the sum of geometry.width for each glyph in the glyphs.
glyphs | a T |
Returns | the logical width of the glyph string. |
:Glyphs(self @ T) : Gtk.Pango.GlyphInfo.T
:IndexToX(self @ T, text @ Std.String.T, length @ Std.Integer.SmallT, analysis @ Gtk.Pango.Analysis.T, index_ @ Std.Integer.SmallT, trailing @ Std.Symbol.T, x_pos @ Std.Object.T) : Std.Object.T
Converts from character position to x position. (X position is measured from the left edge of the run). Character positions are computed by dividing up each cluster into equal portions.
glyphs | the glyphs return from pango_shape() |
text | the text for the run |
length | the number of bytes (not characters) in text. |
analysis | the analysis information return from pango_itemize() |
index_ | the byte index within text |
trailing | whether we should compute the result for the beginning (FALSE) or end (TRUE) of the character. |
x_pos | location to store result |
:LogClusters(self @ T) : Std.Object.T
:NumGlyphs(self @ T) : Std.Integer.SmallT
:SetSize(self @ T, new_len @ Std.Integer.SmallT) : Std.Object.T
:XToIndex(self @ T, text @ Std.String.T, length @ Std.Integer.SmallT, analysis @ Gtk.Pango.Analysis.T, x_pos @ Std.Integer.SmallT, index_ @ Std.Object.T, trailing @ Std.Object.T) : Std.Object.T
Convert from x offset to character position. Character positions are computed by dividing up each cluster into equal portions. In scripts where positioning within a cluster is not allowed (such as Thai), the returned value may not be a valid cursor position; the caller must combine the result with the logical attributes for the text to compute the valid cursor position.
glyphs | the glyphs returned from pango_shape() |
text | the text for the run |
length | the number of bytes (not characters) in text. |
analysis | the analysis information return from pango_itemize() |
x_pos | the x offset (in Pango units) |
index_ | location to store calculated byte index within text |
trailing | location to store a boolean indicating whether the user clicked on the leading or trailing edge of the character. |