Sets our main struct and passes it to the parent class
Decreases the reference count on font by one. If the result is zero, then font and all associated resources are freed. See cairo_scaled_font_reference(). Since 1.0
Gets the metrics for a cairo_scaled_font_t. Since 1.0
Stores the CTM with which scaled_font was created into ctm. Note that the translation offsets (x0, y0) of the CTM are ignored by cairo_scaled_font_create(). So, the matrix this function returns always has 0,0 as x0,y0. Since 1.2
Gets the font face that this scaled font uses. This might be the font face passed to cairo_scaled_font_create(), but this does not hold true for all possible cases. Since 1.2
Stores the font matrix with which scaled_font was created into matrix. Since 1.2
Stores the font options with which scaled_font was created into options. Since 1.2
Returns the current reference count of scaled_font. Since 1.4
Stores the scale matrix of scaled_font into matrix. The scale matrix is product of the font matrix and the ctm associated with the scaled font, and hence is the matrix mapping from font space to device space. Since 1.8
Get the main Gtk struct
the main Gtk struct as a void*
This function returns the type of the backend used to create a scaled font. See cairo_font_type_t for available types. However, this function never returns CAIRO_FONT_TYPE_TOY. Since 1.2
Return user data previously attached to scaled_font using the specified key. If no user data has been attached with the given key this function returns NULL. Since 1.4
Gets the extents for an array of glyphs. The extents describe a user-space rectangle that encloses the "inked" portion of the glyphs, (as they would be drawn by cairo_show_glyphs() if the cairo graphics state were set to the same font_face, font_matrix, ctm, and font_options as scaled_font). Additionally, the x_advance and y_advance values indicate the amount by which the current point would be advanced by cairo_show_glyphs(). Note that whitespace glyphs do not contribute to the size of the rectangle (extents.width and extents.height). Since 1.0
Increases the reference count on scaled_font by one. This prevents scaled_font from being destroyed until a matching call to cairo_scaled_font_destroy() is made. The number of references to a cairo_scaled_font_t can be get using cairo_scaled_font_get_reference_count(). Since 1.0
Attach user data to scaled_font. To remove user data from a surface, call this function with the key that was used to set it and NULL for data. Since 1.4
Checks whether an error has previously occurred for this scaled_font. Since 1.0
Gets the extents for a string of text. The extents describe a user-space rectangle that encloses the "inked" portion of the text drawn at the origin (0,0) (as it would be drawn by cairo_show_text() if the cairo graphics state were set to the same font_face, font_matrix, ctm, and font_options as scaled_font). Additionally, the x_advance and y_advance values indicate the amount by which the current point would be advanced by cairo_show_text(). Note that whitespace characters do not directly contribute to the size of the rectangle (extents.width and extents.height). They do contribute indirectly by changing the position of non-whitespace characters. In particular, trailing whitespace characters are likely to not affect the size of the rectangle, though they will affect the x_advance and y_advance values. Since 1.2
Converts UTF-8 text to an array of glyphs, optionally with cluster mapping, that can be used to render later using scaled_font. If glyphs initially points to a non-NULL value, that array is used as a glyph buffer, and num_glyphs should point to the number of glyph entries available there. If the provided glyph array is too short for the conversion, a new glyph array is allocated using cairo_glyph_allocate() and placed in glyphs. Upon return, num_glyphs always contains the number of generated glyphs. If the value glyphs points to has changed after the call, the user is responsible for freeing the allocated glyph array using cairo_glyph_free(). This may happen even if the provided array was large enough. If clusters is not NULL, num_clusters and cluster_flags should not be NULL, and cluster mapping will be computed. The semantics of how cluster array allocation works is similar to the glyph array. That is, if clusters initially points to a non-NULL value, that array is used as a cluster buffer, and num_clusters should point to the number of cluster entries available there. If the provided cluster array is too short for the conversion, a new cluster array is allocated using cairo_text_cluster_allocate() and placed in clusters. Upon return, num_clusters always contains the number of generated clusters. If the value clusters points at has changed after the call, the user is responsible for freeing the allocated cluster array using cairo_text_cluster_free(). This may happen even if the provided array was large enough. In the simplest case, glyphs and clusters can point to NULL initially Since 1.8
Creates a cairo_scaled_font_t object from a font face and matrices that describe the size of the font and the environment in which it will be used. Since 1.0
the main Gtk struct
cairo_scaled_font_t represents a realization of a font face at a particular size and transformation and a certain set of font options.