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BonoboUIEngine

BonoboUIEngine

BonoboUIEngine — The guts of the UI handler

Synopsis

                    BonoboUIEngine;
void                bonobo_ui_engine_deregister_dead_components
                                                        (BonoboUIEngine *engine);
void                bonobo_ui_engine_deregister_component_by_ref
                                                        (BonoboUIEngine *engine,
                                                         Bonobo_Unknown ref);
void                bonobo_ui_engine_deregister_component
                                                        (BonoboUIEngine *engine,
                                                         const char *name);
void                bonobo_ui_engine_register_component (BonoboUIEngine *engine,
                                                         const char *name,
                                                         Bonobo_Unknown component);
GList *             bonobo_ui_engine_get_component_names
                                                        (BonoboUIEngine *engine);
Bonobo_Unknown      bonobo_ui_engine_get_component      (BonoboUIEngine *engine,
                                                         const char *name);
void                bonobo_ui_engine_config_set_path    (BonoboUIEngine *engine,
                                                         const char *path);
const char *        bonobo_ui_engine_config_get_path    (BonoboUIEngine *engine);
void                bonobo_ui_engine_set_ui_container   (BonoboUIEngine *engine,
                                                         BonoboUIContainer *ui_container);
BonoboUIContainer * bonobo_ui_engine_get_ui_container   (BonoboUIEngine *engine);
void                bonobo_ui_engine_freeze             (BonoboUIEngine *engine);
void                bonobo_ui_engine_thaw               (BonoboUIEngine *engine);
void                bonobo_ui_engine_update             (BonoboUIEngine *engine);
enum                BonoboUIError;
                    BonoboUIEnginePrivate;
                    BonoboUIEngineClass;
BonoboUIEngine *    bonobo_ui_engine_construct          (BonoboUIEngine *engine,
                                                         GObject *view);
BonoboUIEngine *    bonobo_ui_engine_new                (GObject *view);
GObject *           bonobo_ui_engine_get_view           (BonoboUIEngine *engine);
void                bonobo_ui_engine_add_sync           (BonoboUIEngine *engine,
                                                         BonoboUISync *sync);
void                bonobo_ui_engine_remove_sync        (BonoboUIEngine *engine,
                                                         BonoboUISync *sync);
GSList *            bonobo_ui_engine_get_syncs          (BonoboUIEngine *engine);
void                bonobo_ui_engine_update_node        (BonoboUIEngine *engine,
                                                         BonoboUISync *sync,
                                                         BonoboUINode *node);
void                bonobo_ui_engine_queue_update       (BonoboUIEngine *engine,
                                                         GtkWidget *widget,
                                                         BonoboUINode *node,
                                                         BonoboUINode *cmd_node);
GtkWidget *         bonobo_ui_engine_build_control      (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
BonoboUINode *      bonobo_ui_engine_widget_get_node    (GtkWidget *widget);
void                bonobo_ui_engine_widget_set_node    (BonoboUIEngine *engine,
                                                         GtkWidget *widget,
                                                         BonoboUINode *node);
BonoboUIError       bonobo_ui_engine_xml_set_prop       (BonoboUIEngine *engine,
                                                         const char *path,
                                                         const char *property,
                                                         const char *value,
                                                         const char *component);
CORBA_char *        bonobo_ui_engine_xml_get_prop       (BonoboUIEngine *engine,
                                                         const char *path,
                                                         const char *prop,
                                                         gboolean *invalid_path);
void                bonobo_ui_engine_prune_widget_info  (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         gboolean save_custom);
BonoboUINode *      bonobo_ui_engine_get_path           (BonoboUIEngine *engine,
                                                         const char *path);
void                bonobo_ui_engine_dirty_tree         (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
void                bonobo_ui_engine_clean_tree         (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
void                bonobo_ui_engine_dump               (BonoboUIEngine *engine,
                                                         FILE *out,
                                                         const char *msg);
CORBA_Object        bonobo_ui_engine_node_get_object    (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
gboolean            bonobo_ui_engine_node_is_dirty      (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
GtkWidget *         bonobo_ui_engine_node_get_widget    (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
const char *        bonobo_ui_engine_node_get_id        (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
BonoboUINode *      bonobo_ui_engine_get_cmd_node       (BonoboUIEngine *engine,
                                                         BonoboUINode *from_node);
void                bonobo_ui_engine_node_set_dirty     (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         gboolean dirty);
void                bonobo_ui_engine_stamp_custom       (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
void                bonobo_ui_engine_widget_set         (BonoboUIEngine *engine,
                                                         const char *path,
                                                         GtkWidget *widget);
void                bonobo_ui_engine_stamp_root         (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         GtkWidget *widget);
void                bonobo_ui_engine_add_hint           (BonoboUIEngine *engine,
                                                         const char *str);
void                bonobo_ui_engine_remove_hint        (BonoboUIEngine *engine);
void                bonobo_ui_engine_emit_verb_on       (BonoboUIEngine *engine,
                                                         BonoboUINode *node);
void                bonobo_ui_engine_emit_event_on      (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         const char *state);
void                bonobo_ui_engine_emit_verb_on_w     (BonoboUIEngine *engine,
                                                         GtkWidget *widget);
void                bonobo_ui_engine_emit_event_on_w    (BonoboUIEngine *engine,
                                                         GtkWidget *widget,
                                                         const char *state);
char *              bonobo_ui_engine_get_attr           (BonoboUINode *node,
                                                         BonoboUINode *cmd_node,
                                                         const char *attr);
void                bonobo_ui_engine_widget_attach_node (GtkWidget *widget,
                                                         BonoboUINode *node);
CORBA_char *        bonobo_ui_engine_xml_get            (BonoboUIEngine *engine,
                                                         const char *path,
                                                         gboolean node_only);
gboolean            bonobo_ui_engine_xml_node_exists    (BonoboUIEngine *engine,
                                                         const char *path);
BonoboUIError       bonobo_ui_engine_xml_merge_tree     (BonoboUIEngine *engine,
                                                         const char *path,
                                                         BonoboUINode *tree,
                                                         const char *component);
BonoboUIError       bonobo_ui_engine_xml_rm             (BonoboUIEngine *engine,
                                                         const char *path,
                                                         const char *by_component);
BonoboUIError       bonobo_ui_engine_object_set         (BonoboUIEngine *engine,
                                                         const char *path,
                                                         Bonobo_Unknown object,
                                                         CORBA_Environment *ev);
BonoboUIError       bonobo_ui_engine_object_get         (BonoboUIEngine *engine,
                                                         const char *path,
                                                         Bonobo_Unknown *object,
                                                         CORBA_Environment *ev);
void                bonobo_ui_engine_exec_verb          (BonoboUIEngine *engine,
                                                         const CORBA_char *cname,
                                                         CORBA_Environment *ev);
void                bonobo_ui_engine_ui_event           (BonoboUIEngine *engine,
                                                         const CORBA_char *id,
                                                         const Bonobo_UIComponent_EventType type,
                                                         const CORBA_char *state,
                                                         CORBA_Environment *ev);

Object Hierarchy

  GObject
   +----BonoboUIEngine

Signals

  "add-hint"                                       : Run Last
  "destroy"                                        : Run Last
  "emit-event-on"                                  : Run Last
  "emit-verb-on"                                   : Run Last
  "remove-hint"                                    : Run Last

Description

The Bonobo UI code as exposed through the BonoboWindow, BonoboUIComponent and BonoboUIContainer API's use the BonoboUIEngine. The Engine effectively maintains a BonoboUIXml tree internaly, and a list of BonoboUISync synchronizers that, when the tree changes are used to re-sync the associated widgets with the XML model.

The Engine can be tweaked by getting its pointer from an associated BonoboWindow eg. this can be useful for setting the configuration path. To allow a BonoboWindow to be configurable you need to do:

Example 7. How to make your UI user configurable

1
2
3
bonobo_ui_engine_config_set_path (
        bonobo_window_get_ui_engine (win),
        "/my-application-name/UIConfig/kvps");


where "UIConfig/kvps" is some convenient path into your gnome_config file.

Key value pairs (kvps) are stored in this, mangled into a comma delimited string and these are used to clobber the XML on merges, eg.

Example 8. User configuration format

1
2
[UIConfig]
kvps=/Toolbar:look:both


inside your ~/.gnome/my-application-name file, will ensure that whenever the item with path '/Toolbar' is modified the 'look="both"' attribute will be stamped onto it, effecively forcing a certain look.

Details

BonoboUIEngine

typedef struct _BonoboUIEngine BonoboUIEngine;


bonobo_ui_engine_deregister_dead_components ()

void                bonobo_ui_engine_deregister_dead_components
                                                        (BonoboUIEngine *engine);

Detect any components that have died and deregister them - unmerging their UI elements.

engine :

the engine

bonobo_ui_engine_deregister_component_by_ref ()

void                bonobo_ui_engine_deregister_component_by_ref
                                                        (BonoboUIEngine *engine,
                                                         Bonobo_Unknown ref);

Deregisters component with reference ref from engine.

engine :

the engine

ref :

the ref.

bonobo_ui_engine_deregister_component ()

void                bonobo_ui_engine_deregister_component
                                                        (BonoboUIEngine *engine,
                                                         const char *name);

Deregisters component of name from engine.

engine :

the engine

name :

the component name

bonobo_ui_engine_register_component ()

void                bonobo_ui_engine_register_component (BonoboUIEngine *engine,
                                                         const char *name,
                                                         Bonobo_Unknown component);

Registers component with engine by name.

engine :

the engine

name :

a name to associate a component with

component :

the component

bonobo_ui_engine_get_component_names ()

GList *             bonobo_ui_engine_get_component_names
                                                        (BonoboUIEngine *engine);

engine :

the engine

Returns :

the names of all registered components

bonobo_ui_engine_get_component ()

Bonobo_Unknown      bonobo_ui_engine_get_component      (BonoboUIEngine *engine,
                                                         const char *name);

engine :

the engine

name :

the name of the component to fetch

Returns :

the component with name name

bonobo_ui_engine_config_set_path ()

void                bonobo_ui_engine_config_set_path    (BonoboUIEngine *engine,
                                                         const char *path);

engine :

path :


bonobo_ui_engine_config_get_path ()

const char *        bonobo_ui_engine_config_get_path    (BonoboUIEngine *engine);

engine :

Returns :


bonobo_ui_engine_set_ui_container ()

void                bonobo_ui_engine_set_ui_container   (BonoboUIEngine *engine,
                                                         BonoboUIContainer *ui_container);

Associates a given UI Container with this BonoboUIEngine.

engine :

the engine

ui_container :

a UI Container bonobo object.

bonobo_ui_engine_get_ui_container ()

BonoboUIContainer * bonobo_ui_engine_get_ui_container   (BonoboUIEngine *engine);

Fetches the associated UI Container

engine :

the engine

Returns :

the associated UI container.

bonobo_ui_engine_freeze ()

void                bonobo_ui_engine_freeze             (BonoboUIEngine *engine);

Warning

bonobo_ui_engine_freeze is deprecated and should not be used in newly-written code.

This increments the freeze count on the tree, while this count > 0 no syncronization between the internal XML model and the widget views occurs. This means that many simple merges can be glupped together with little performance impact and overhead.

engine :

the engine

bonobo_ui_engine_thaw ()

void                bonobo_ui_engine_thaw               (BonoboUIEngine *engine);

Warning

bonobo_ui_engine_thaw is deprecated and should not be used in newly-written code.

This decrements the freeze count and if it is 0 causes the UI widgets to be re-synched with the XML model, see also bonobo_ui_engine_freeze

engine :

the engine

bonobo_ui_engine_update ()

void                bonobo_ui_engine_update             (BonoboUIEngine *engine);

Warning

bonobo_ui_engine_update is deprecated and should not be used in newly-written code.

This function is called to update the entire UI model synchronizing any changes in it with the widget tree where neccessary

engine :

the engine.

enum BonoboUIError

typedef enum {
	BONOBO_UI_ERROR_OK = 0,
	BONOBO_UI_ERROR_BAD_PARAM,
	BONOBO_UI_ERROR_INVALID_PATH,
	BONOBO_UI_ERROR_INVALID_XML
} BonoboUIError;


BonoboUIEnginePrivate

typedef struct _BonoboUIEnginePrivate BonoboUIEnginePrivate;


BonoboUIEngineClass

typedef struct {
	GObjectClass parent_class;

	/* Signals */
	void (*add_hint)      (BonoboUIEngine *engine,
			       const char     *str);
	void (*remove_hint)   (BonoboUIEngine *engine);

	void (*emit_verb_on)  (BonoboUIEngine *engine,
			       BonoboUINode   *node);

	void (*emit_event_on) (BonoboUIEngine *engine,
			       BonoboUINode   *node,
			       const char     *state);

	void (*destroy)       (BonoboUIEngine *engine);
} BonoboUIEngineClass;


bonobo_ui_engine_construct ()

BonoboUIEngine *    bonobo_ui_engine_construct          (BonoboUIEngine *engine,
                                                         GObject *view);

Construct a new bonobo_ui_engine

engine :

the engine.

view :

the view [ often a BonoboWindow ]

Returns :

the constructed engine.

bonobo_ui_engine_new ()

BonoboUIEngine *    bonobo_ui_engine_new                (GObject *view);

Create a new BonoboUIEngine structure

view :

Returns :

the new UI Engine.

bonobo_ui_engine_get_view ()

GObject *           bonobo_ui_engine_get_view           (BonoboUIEngine *engine);

This returns the associated view, often a BonoboWindow

engine :

the engine

Returns :

the view widget.

bonobo_ui_engine_add_sync ()

void                bonobo_ui_engine_add_sync           (BonoboUIEngine *engine,
                                                         BonoboUISync *sync);

Add a BonoboUISync synchronizer to the engine

engine :

the enginer

sync :

the synchronizer

bonobo_ui_engine_remove_sync ()

void                bonobo_ui_engine_remove_sync        (BonoboUIEngine *engine,
                                                         BonoboUISync *sync);

Remove a specified BonoboUISync synchronizer from the engine

engine :

the engine

sync :

the sync

bonobo_ui_engine_get_syncs ()

GSList *            bonobo_ui_engine_get_syncs          (BonoboUIEngine *engine);

Retrieve a list of available synchronizers.

engine :

the engine

Returns :

a GSList of BonoboUISync s

bonobo_ui_engine_update_node ()

void                bonobo_ui_engine_update_node        (BonoboUIEngine *engine,
                                                         BonoboUISync *sync,
                                                         BonoboUINode *node);

This function is used to write recursive synchronizers and is intended only for internal / privilaged use.

By the time this returns, due to re-enterancy, node points at undefined memory.

engine :

the engine

sync :

node :

the node to start updating.

bonobo_ui_engine_queue_update ()

void                bonobo_ui_engine_queue_update       (BonoboUIEngine *engine,
                                                         GtkWidget *widget,
                                                         BonoboUINode *node,
                                                         BonoboUINode *cmd_node);

This function is used to queue a state update on widget, essentialy transfering any state from the XML model into the widget view. This is queued to avoid re-enterancy problems.

engine :

the engine

widget :

the widget to update later

node :

the node

cmd_node :

the associated command's node

bonobo_ui_engine_build_control ()

GtkWidget *         bonobo_ui_engine_build_control      (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

A helper function for synchronizers, this creates a control if possible from the node's associated object, stamps the node as containing a control and sets its widget.

engine :

the engine

node :

the control node.

Returns :

a Control's GtkWidget.

bonobo_ui_engine_widget_get_node ()

BonoboUINode *      bonobo_ui_engine_widget_get_node    (GtkWidget *widget);

widget :

the widget

Returns :

the BonoboUINode associated with this widget

bonobo_ui_engine_widget_set_node ()

void                bonobo_ui_engine_widget_set_node    (BonoboUIEngine *engine,
                                                         GtkWidget *widget,
                                                         BonoboUINode *node);

Used internaly to associate a widget with a node, some synchronisers need to be able to execute code on widget creation.

engine :

the engine

widget :

the widget

node :

the node

bonobo_ui_engine_xml_set_prop ()

BonoboUIError       bonobo_ui_engine_xml_set_prop       (BonoboUIEngine *engine,
                                                         const char *path,
                                                         const char *property,
                                                         const char *value,
                                                         const char *component);

This function sets the property of a node in the internal tree representation at path in engine.

engine :

the engine

path :

the path into the tree

property :

The property to set

value :

The new value of the property

component :

the component ID associated with the nodes.

Returns :

flag on error

bonobo_ui_engine_xml_get_prop ()

CORBA_char *        bonobo_ui_engine_xml_get_prop       (BonoboUIEngine *engine,
                                                         const char *path,
                                                         const char *prop,
                                                         gboolean *invalid_path);

This function fetches the property prop at node at path in the internal structure.

engine :

the engine

path :

the path into the tree

prop :

The property

invalid_path :

Returns :

a CORBA allocated string

bonobo_ui_engine_prune_widget_info ()

void                bonobo_ui_engine_prune_widget_info  (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         gboolean save_custom);

This function destroys any widgets associated with node and all its children, if save_custom, any widget that is a custom widget ( such as a control ) will be preserved. All widgets flagged ROOT are preserved always.

engine :

the engine

node :

the node

save_custom :

whether to save custom widgets

bonobo_ui_engine_get_path ()

BonoboUINode *      bonobo_ui_engine_get_path           (BonoboUIEngine *engine,
                                                         const char *path);

This routine gets a node from the internal XML tree pointed at by path

engine :

the engine.

path :

the path into the tree

Returns :

the node.

bonobo_ui_engine_dirty_tree ()

void                bonobo_ui_engine_dirty_tree         (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

Mark all the node's children as being dirty and needing a re-synch with their widget views.

engine :

the engine

node :

the node

bonobo_ui_engine_clean_tree ()

void                bonobo_ui_engine_clean_tree         (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

This cleans the tree, marking the node and its children as not needing a re-synch with their widget views.

engine :

the engine

node :

the node

bonobo_ui_engine_dump ()

void                bonobo_ui_engine_dump               (BonoboUIEngine *engine,
                                                         FILE *out,
                                                         const char *msg);

This is a debugging function mostly for internal and testing use, it dumps the XML tree, including the associated, and overridden nodes in a wierd hackish format to the out stream with the helpful msg prepended.

engine :

the engine

out :

the FILE stream to dump to

msg :

user visible message

bonobo_ui_engine_node_get_object ()

CORBA_Object        bonobo_ui_engine_node_get_object    (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

engine :

the engine

node :

the node

Returns :

the CORBA_Object associated with a node

bonobo_ui_engine_node_is_dirty ()

gboolean            bonobo_ui_engine_node_is_dirty      (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

engine :

the engine

node :

the node

Returns :

whether the node is marked dirty

bonobo_ui_engine_node_get_widget ()

GtkWidget *         bonobo_ui_engine_node_get_widget    (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

Gets the widget associated with node

engine :

the engine

node :

the node

Returns :

the widget

bonobo_ui_engine_node_get_id ()

const char *        bonobo_ui_engine_node_get_id        (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

Each component has an associated textual id or name - see bonobo_ui_engine_register_component

engine :

the engine

node :

the node

Returns :

the component id associated with the node

bonobo_ui_engine_get_cmd_node ()

BonoboUINode *      bonobo_ui_engine_get_cmd_node       (BonoboUIEngine *engine,
                                                         BonoboUINode *from_node);

This function seeks the command node associated with from_node in engine 's internal tree.

engine :

the engine

from_node :

the node

Returns :

the command node or NULL

bonobo_ui_engine_node_set_dirty ()

void                bonobo_ui_engine_node_set_dirty     (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         gboolean dirty);

Set node s dirty bit to dirty.

engine :

the engine

node :

the node

dirty :

whether the node should be dirty.

bonobo_ui_engine_stamp_custom ()

void                bonobo_ui_engine_stamp_custom       (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

Marks a node as containing a custom widget.

engine :

the engine

node :

the node

bonobo_ui_engine_widget_set ()

void                bonobo_ui_engine_widget_set         (BonoboUIEngine *engine,
                                                         const char *path,
                                                         GtkWidget *widget);

engine :

path :

widget :


bonobo_ui_engine_stamp_root ()

void                bonobo_ui_engine_stamp_root         (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         GtkWidget *widget);

This stamps node with widget which is marked as being a ROOT node, so the engine will never destroy it.

engine :

the engine

node :

the node

widget :

the root widget

bonobo_ui_engine_add_hint ()

void                bonobo_ui_engine_add_hint           (BonoboUIEngine *engine,
                                                         const char *str);

This fires the 'add_hint' signal.

engine :

the engine

str :

the hint string

bonobo_ui_engine_remove_hint ()

void                bonobo_ui_engine_remove_hint        (BonoboUIEngine *engine);

This fires the 'remove_hint' signal

engine :

the engine

bonobo_ui_engine_emit_verb_on ()

void                bonobo_ui_engine_emit_verb_on       (BonoboUIEngine *engine,
                                                         BonoboUINode *node);

This fires the 'emit_verb' signal

engine :

the engine

node :

the node

bonobo_ui_engine_emit_event_on ()

void                bonobo_ui_engine_emit_event_on      (BonoboUIEngine *engine,
                                                         BonoboUINode *node,
                                                         const char *state);

This fires the 'emit_event_on' signal

engine :

the engine

node :

the node

state :

the new state of the node

bonobo_ui_engine_emit_verb_on_w ()

void                bonobo_ui_engine_emit_verb_on_w     (BonoboUIEngine *engine,
                                                         GtkWidget *widget);

This function looks up the node from widget and emits the 'emit_verb_on' signal on that node.

engine :

the engine

widget :

the widget

bonobo_ui_engine_emit_event_on_w ()

void                bonobo_ui_engine_emit_event_on_w    (BonoboUIEngine *engine,
                                                         GtkWidget *widget,
                                                         const char *state);

This function looks up the node from widget and emits the 'emit_event_on' signal on that node passint state as the new state.

engine :

the engine

widget :

the widget

state :

the new state

bonobo_ui_engine_get_attr ()

char *              bonobo_ui_engine_get_attr           (BonoboUINode *node,
                                                         BonoboUINode *cmd_node,
                                                         const char *attr);

This function is used to get node attributes in many UI synchronizers, it first attempts to get the attribute from node, and if this fails falls back to cmd_node.

node :

the node

cmd_node :

the command's node

attr :

the attribute name

Returns :

the attr or NULL if it doesn't exist.

bonobo_ui_engine_widget_attach_node ()

void                bonobo_ui_engine_widget_attach_node (GtkWidget *widget,
                                                         BonoboUINode *node);

Associate node with widget

widget :

the widget

node :

the node

bonobo_ui_engine_xml_get ()

CORBA_char *        bonobo_ui_engine_xml_get            (BonoboUIEngine *engine,
                                                         const char *path,
                                                         gboolean node_only);

This function fetches the node at path in the internal structure, and if node_only dumps the node to an XML string, otherwise it dumps it and its children.

engine :

the engine

path :

the path into the tree

node_only :

just the node, or children too.

Returns :

the XML string - use CORBA_free to free

bonobo_ui_engine_xml_node_exists ()

gboolean            bonobo_ui_engine_xml_node_exists    (BonoboUIEngine *engine,
                                                         const char *path);

engine :

the engine

path :

the path into the tree

Returns :

true if the node at path exists

bonobo_ui_engine_xml_merge_tree ()

BonoboUIError       bonobo_ui_engine_xml_merge_tree     (BonoboUIEngine *engine,
                                                         const char *path,
                                                         BonoboUINode *tree,
                                                         const char *component);

This function merges the XML tree into the internal tree representation as children of the node at path in engine.

engine :

the engine

path :

the path into the tree

tree :

the nodes

component :

the component ID associated with these nodes.

Returns :

flag on error

bonobo_ui_engine_xml_rm ()

BonoboUIError       bonobo_ui_engine_xml_rm             (BonoboUIEngine *engine,
                                                         const char *path,
                                                         const char *by_component);

Remove a chunk of the xml tree pointed at by path in engine, if by_component then only remove items associated with that component - possibly revealing other overridden items.

engine :

the engine

path :

the path into the tree

by_component :

whether to remove elements from only a specific component

Returns :

flag on error

bonobo_ui_engine_object_set ()

BonoboUIError       bonobo_ui_engine_object_set         (BonoboUIEngine *engine,
                                                         const char *path,
                                                         Bonobo_Unknown object,
                                                         CORBA_Environment *ev);

This associates a CORBA Object reference with a node in the tree, most often this is done to insert a Control's reference into a 'control' element.

engine :

the engine

path :

the path into the tree

object :

an object reference

ev :

CORBA exception environment

Returns :

flag if success

bonobo_ui_engine_object_get ()

BonoboUIError       bonobo_ui_engine_object_get         (BonoboUIEngine *engine,
                                                         const char *path,
                                                         Bonobo_Unknown *object,
                                                         CORBA_Environment *ev);

This extracts a CORBA object reference associated with the node at path in engine, and returns it in the reference pointed to by object.

engine :

the engine

path :

the path into the tree

object :

an pointer to an object reference

ev :

CORBA exception environment

Returns :

flag if success

bonobo_ui_engine_exec_verb ()

void                bonobo_ui_engine_exec_verb          (BonoboUIEngine *engine,
                                                         const CORBA_char *cname,
                                                         CORBA_Environment *ev);

engine :

cname :

ev :


bonobo_ui_engine_ui_event ()

void                bonobo_ui_engine_ui_event           (BonoboUIEngine *engine,
                                                         const CORBA_char *id,
                                                         const Bonobo_UIComponent_EventType type,
                                                         const CORBA_char *state,
                                                         CORBA_Environment *ev);

engine :

id :

type :

state :

ev :

Signal Details

The "add-hint" signal

void                user_function                      (BonoboUIEngine *bonobouiengine,
                                                        gchar          *arg1,
                                                        gpointer        user_data)           : Run Last

bonobouiengine :

the object which received the signal.

arg1 :

user_data :

user data set when the signal handler was connected.

The "destroy" signal

void                user_function                      (BonoboUIEngine *bonobouiengine,
                                                        gpointer        user_data)           : Run Last

bonobouiengine :

the object which received the signal.

user_data :

user data set when the signal handler was connected.

The "emit-event-on" signal

void                user_function                      (BonoboUIEngine *bonobouiengine,
                                                        gpointer        arg1,
                                                        gchar          *arg2,
                                                        gpointer        user_data)           : Run Last

bonobouiengine :

the object which received the signal.

arg1 :

arg2 :

user_data :

user data set when the signal handler was connected.

The "emit-verb-on" signal

void                user_function                      (BonoboUIEngine *bonobouiengine,
                                                        gpointer        arg1,
                                                        gpointer        user_data)           : Run Last

bonobouiengine :

the object which received the signal.

arg1 :

user_data :

user data set when the signal handler was connected.

The "remove-hint" signal

void                user_function                      (BonoboUIEngine *bonobouiengine,
                                                        gpointer        user_data)           : Run Last

bonobouiengine :

the object which received the signal.

user_data :

user data set when the signal handler was connected.

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