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.
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