GailMisc

GailMisc — GailMisc is a set of utility functions which may be useful to implementors of Atk interfaces for custom widgets.

Synopsis

AtkAttributeSet *   gail_misc_add_attribute             (AtkAttributeSet *attrib_set,
                                                         AtkTextAttribute attr,
                                                         gchar *value);
AtkAttributeSet *   gail_misc_layout_get_run_attributes (AtkAttributeSet *attrib_set,
                                                         PangoLayout *layout,
                                                         const gchar *text,
                                                         gint offset,
                                                         gint *start_offset,
                                                         gint *end_offset);
AtkAttributeSet *   gail_misc_get_default_attributes    (AtkAttributeSet *attrib_set,
                                                         PangoLayout *layout,
                                                         GtkWidget *widget);
void                gail_misc_get_extents_from_pango_rectangle
                                                        (GtkWidget *widget,
                                                         PangoRectangle *char_rect,
                                                         gint x_layout,
                                                         gint y_layout,
                                                         gint *x,
                                                         gint *y,
                                                         gint *width,
                                                         gint *height,
                                                         AtkCoordType coords);
gint                gail_misc_get_index_at_point_in_layout
                                                        (GtkWidget *widget,
                                                         PangoLayout *layout,
                                                         gint x_layout,
                                                         gint y_layout,
                                                         gint x,
                                                         gint y,
                                                         AtkCoordType coords);
void                gail_misc_get_origins               (GtkWidget *widget,
                                                         gint *x_window,
                                                         gint *y_window,
                                                         gint *x_toplevel,
                                                         gint *y_toplevel);
AtkAttributeSet *   gail_misc_buffer_get_run_attributes (GtkTextBuffer *buffer,
                                                         gint offset,
                                                         gint *start_offset,
                                                         gint *end_offset);

Description

GailMisc is a set of utility function which are used in the implemementation of Atk interfaces for GTK+ widgets. They may be useful to implementors of Atk interfaces for custom widgets.

Details

gail_misc_add_attribute ()

AtkAttributeSet *   gail_misc_add_attribute             (AtkAttributeSet *attrib_set,
                                                         AtkTextAttribute attr,
                                                         gchar *value);

Creates an AtkAttribute from attr and value, and adds it to attrib_set.

`attrib_set` :	The AtkAttributeSet to add the attribute to
`attr` :	The AtkTextAttrribute which identifies the attribute to be added
`value` :	The attribute value
Returns :	A pointer to the new AtkAttributeSet.

gail_misc_layout_get_run_attributes ()

AtkAttributeSet *   gail_misc_layout_get_run_attributes (AtkAttributeSet *attrib_set,
                                                         PangoLayout *layout,
                                                         const gchar *text,
                                                         gint offset,
                                                         gint *start_offset,
                                                         gint *end_offset);

Adds the attributes for the run starting at offset to the specified attribute set.

`attrib_set` :	The AtkAttributeSet to add the attribute to
`layout` :	The PangoLayout from which the attributes will be obtained
`text` :	The text
`offset` :	The offset at which the attributes are required
`start_offset` :	The start offset of the current run
`end_offset` :	The end offset of the current run
Returns :	A pointer to the AtkAttributeSet.

gail_misc_get_default_attributes ()

AtkAttributeSet *   gail_misc_get_default_attributes    (AtkAttributeSet *attrib_set,
                                                         PangoLayout *layout,
                                                         GtkWidget *widget);

Adds the default attributes to the specified attribute set.

`attrib_set` :	The AtkAttributeSet to add the attribute to
`layout` :	The PangoLayout from which the attributes will be obtained
`widget` :	The GtkWidget for which the default attributes are required.
Returns :	A pointer to the AtkAttributeSet.

gail_misc_get_extents_from_pango_rectangle ()

void                gail_misc_get_extents_from_pango_rectangle
                                                        (GtkWidget *widget,
                                                         PangoRectangle *char_rect,
                                                         gint x_layout,
                                                         gint y_layout,
                                                         gint *x,
                                                         gint *y,
                                                         gint *width,
                                                         gint *height,
                                                         AtkCoordType coords);

Gets the extents of char_rect in device coordinates, relative to either top-level window or screen coordinates as specified by coords.

`widget` :	The widget that contains the PangoLayout, that contains the PangoRectangle
`char_rect` :	The PangoRectangle from which to calculate extents
`x_layout` :	The x-offset at which the widget displays the PangoLayout that contains the PangoRectangle, relative to `widget`
`y_layout` :	The y-offset at which the widget displays the PangoLayout that contains the PangoRectangle, relative to `widget`
`x` :	The x-position of the PangoRectangle relative to `coords`
`y` :	The y-position of the PangoRectangle relative to `coords`
`width` :	The width of the PangoRectangle
`height` :	The height of the PangoRectangle
`coords` :	An AtkCoordType enumeration

gail_misc_get_index_at_point_in_layout ()

gint                gail_misc_get_index_at_point_in_layout
                                                        (GtkWidget *widget,
                                                         PangoLayout *layout,
                                                         gint x_layout,
                                                         gint y_layout,
                                                         gint x,
                                                         gint y,
                                                         AtkCoordType coords);

Gets the byte offset at the specified x and y in a PangoLayout.

`widget` :	A GtkWidget
`layout` :	The PangoLayout from which to get the index at the specified point.
`x_layout` :	The x-offset at which the widget displays the PangoLayout, relative to `widget`
`y_layout` :	The y-offset at which the widget displays the PangoLayout, relative to `widget`
`x` :	The x-coordinate relative to `coords` at which to calculate the index
`y` :	The y-coordinate relative to `coords` at which to calculate the index
`coords` :	An AtkCoordType enumeration
Returns :	the byte offset at the specified `x` and `y` in a PangoLayout

gail_misc_get_origins ()

void                gail_misc_get_origins               (GtkWidget *widget,
                                                         gint *x_window,
                                                         gint *y_window,
                                                         gint *x_toplevel,
                                                         gint *y_toplevel);

Gets the origin of the widget window, and the origin of the widgets top-level window.

`widget` :	a GtkWidget
`x_window` :	the x-origin of the widget->window
`y_window` :	the y-origin of the widget->window
`x_toplevel` :	the x-origin of the toplevel window for widget->window
`y_toplevel` :	the y-origin of the toplevel window for widget->window

gail_misc_buffer_get_run_attributes ()

AtkAttributeSet *   gail_misc_buffer_get_run_attributes (GtkTextBuffer *buffer,
                                                         gint offset,
                                                         gint *start_offset,
                                                         gint *end_offset);

Creates an AtkAttributeSet which contains the attributes for the run starting at offset.

`buffer` :	The GtkTextBuffer for which the attributes will be obtained
`offset` :	The offset at which the attributes are required
`start_offset` :	The start offset of the current run
`end_offset` :	The end offset of the current run
Returns :	A pointer to the AtkAttributeSet.

			GAIL Reference Manual
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