gwymodule-process (HEAD)

gwymodule-process — Data processing modules

Functions

void	(*GwyProcessFunc) ()
gboolean	gwy_process_func_register ()
void	gwy_process_func_run ()
gboolean	gwy_process_func_exists ()
GwyRunType	gwy_process_func_get_run_types ()
const gchar *	gwy_process_func_get_menu_path ()
const gchar *	gwy_process_func_get_stock_id ()
const gchar *	gwy_process_func_get_tooltip ()
guint	gwy_process_func_get_sensitivity_mask ()
void	gwy_process_func_foreach ()
const gchar *	gwy_process_func_current ()

Includes

#include <libgwymodule/gwymodule.h>

Description

Data processing modules implement the actual ability to do something useful with data. They reigster functions that get a GwyContainer with data and either modify it or create a new data from it.

Functions

GwyProcessFunc ()

void
(*GwyProcessFunc) (GwyContainer *data,
                   GwyRunType run,
                   const gchar *name);

The type of data processing function.

Parameters

data	The data container to operate on.
run	Run mode.
name	Function name from as registered with gwy_process_func_register() (single-function modules can safely ignore this argument).

gwy_process_func_register ()

gboolean
gwy_process_func_register (const gchar *name,
                           GwyProcessFunc func,
                           const gchar *menu_path,
                           const gchar *stock_id,
                           GwyRunType run,
                           guint sens_mask,
                           const gchar *tooltip);

Registers a data processing function.

Note: the string arguments are not copied as modules are not expected to vanish. If they are constructed (non-constant) strings, do not free them. Should modules ever become unloadable they will get a chance to clean-up.

Parameters

name	Name of function to register. It should be a valid identifier and if a module registers only one function, module and function names should be the same.
func	The function itself.
menu_path	Menu path under Data Process menu. The menu path should be marked translatabe, but passed untranslated (to allow merging of translated and untranslated submenus).
stock_id	Stock icon id for toolbar.
run	Supported run modes. Data processing functions can have two run modes: GWY_RUN_IMMEDIATE (no questions asked) and GWY_RUN_INTERACTIVE (a modal dialog with parameters).
sens_mask	Sensitivity mask (a combination of GwyMenuSensFlags flags). Usually it contains GWY_MENU_FLAG_DATA, possibly other requirements.
tooltip	Tooltip for this function.

Returns

Normally TRUE; FALSE on failure.

gwy_process_func_run ()

void
gwy_process_func_run (const gchar *name,
                      GwyContainer *data,
                      GwyRunType run);

Runs a data processing function identified by name .

Parameters

name	Data processing function name.
data	Data (a GwyContainer).
run	How the function should be run.

gwy_process_func_exists ()

gboolean
gwy_process_func_exists (const gchar *name);

Checks whether a data processing function exists.

Parameters

name

Data processing function name.

Returns

TRUE if function name exists, FALSE otherwise.

gwy_process_func_get_run_types ()

GwyRunType
gwy_process_func_get_run_types (const gchar *name);

Returns run modes supported by a data processing function.

Parameters

name

Data processing function name.

Returns

The run mode bit mask.

gwy_process_func_get_menu_path ()

const gchar *
gwy_process_func_get_menu_path (const gchar *name);

Returns the menu path of a data processing function.

The returned menu path is only the tail part registered by the function, i.e., without any leading "/Data Process".

Parameters

name

Data processing function name.

Returns

The menu path. The returned string is owned by the module.

gwy_process_func_get_stock_id ()

const gchar *
gwy_process_func_get_stock_id (const gchar *name);

Gets stock icon id of a data processing function.

Parameters

name

Data processing function name.

Returns

The stock icon id. The returned string is owned by the module.

gwy_process_func_get_tooltip ()

const gchar *
gwy_process_func_get_tooltip (const gchar *name);

Gets tooltip for a data processing function.

Parameters

name

Data processing function name.

Returns

The tooltip. The returned string is owned by the module.

gwy_process_func_get_sensitivity_mask ()

guint
gwy_process_func_get_sensitivity_mask (const gchar *name);

Gets menu sensititivy mask for a data processing function.

Parameters

name

Data processing function name.

Returns

The menu item sensitivity mask (a combination of GwyMenuSensFlags flags).

gwy_process_func_foreach ()

void
gwy_process_func_foreach (GFunc function,
                          gpointer user_data);

Calls a function for each process function.

Parameters

function	Function to run for each process function. It will get function name (constant string owned by module system) as its first argument, user_data as the second argument.
user_data	Data to pass to function .

gwy_process_func_current ()

const gchar *
gwy_process_func_current (void);

Obtains the name of currently running data processing function.

If no process function is currently running, NULL is returned.

If multiple nested functions are running (which is not usual but technically possible), the innermost function name is returned.

Returns

The name of currently running data processing function or NULL.

Since: 2.38