AppProgressBar Class Reference

Defines progress bar behavior, allowing to monitor the progress of a process. More...

Inheritance diagram for AppProgressBar:

Public Member Functions
	~AppProgressBar ()
	Destructor.
AppBase &	get_application () const
bool	is_valid_context () const
const CoreString &	get_text () const
	Get the text associated to the progress bar.
const CoreString &	get_task_name () const
	Get the text associated to the current task.
float	get_global_value () const
	Get the global progress value.
float	get_value () const
	Get the progress value for the current task.
void	set_value (const float &value)
	Set the progress value for the current task.
void	set_increment (const float &increment)
	Define an progress increment for the current task.
void	increment ()
	Increment the progress value with the recorded increment.
void	increment (const float &value)
	Increment the progress of the current task with the specified value.
void	set_step_count (const unsigned int &step_count)
	Set a number of step that will be processed for the current task.
void	step (const unsigned int &i)
	Specify the step that has been processed.
void	begin_task (const bool &compute_duration=false)
	Start a new task that will cover from the current progress to 100% of the parent task.
void	begin_task (const CoreString &name, const bool &compute_duration=false)
	Start a new task that will cover from the current progress to 100% of the parent task.
void	begin_task (const float &scale, const bool &compute_duration=false)
	Start a new task.
void	begin_task (const CoreString &name, const float &scale, const bool &compute_duration=false)
	Start a new task.
unsigned long	end_task ()
	End the current task.
void	start ()
	Reset the progress to 0%.
void	finish ()
	Set the progress to 100% and comute the total duration.
bool	abort ()
	Inform the process that is monitored by the current progress bar to abort.
void	destroy ()
	Tells the progress bar to destroy itself once it is not useful anymore.
bool	is_abortable () const
	Tells wether the process monitored by the current progress bar can be aborted.
bool	must_abort () const
	Tells wether the process monitored by the current progress bar must be aborted.
const bool &	is_destroyed () const
	Tells wether the progress bar has been destroyed.
const bool &	keep_in_history () const
	Tells wether the progress remains visible in the history.
void	detach_from_main_thread ()
	This function must be called when the progress bar is updated from a thread.
const unsigned long &	get_duration () const
	Get the duration of the process that has been monitored by the progress bar.
Public Member Functions inherited from CoreBaseType
bool	is_kindof (const CoreClassInfo &cinfo) const
bool	operator== (const CoreBaseType &obj) const

Friends
class	AppBase

Additional Inherited Members
Static Public Member Functions inherited from CoreBaseType
static bool	___class_destructor__ (void *instance, const bool &is_array)
static const CoreClassInfo &	class_info ()

Detailed Description

Defines progress bar behavior, allowing to monitor the progress of a process.

The progress bar allows to monitor a process that can be split into several tasks. Each task can then be split into steps. Each time the value of the progress is updated the UI is informed in order to be refreshed.

A progress bar must be created through the application by calling AppBase::create_progress_bar(). Once it is not useful anymore, it must be released by using the destroy() method.

Examples:

app_progress_bar_example.cc.

Member Function Documentation

bool AppProgressBar::abort

(

)

Inform the process that is monitored by the current progress bar to abort.

tells the process that uses the progress bar to abort

void AppProgressBar::begin_task ( const bool &  compute_duration = false )

inline

Start a new task that will cover from the current progress to 100% of the parent task.

Parameters

compute_duration

when true, the duration of the task will be computed

Examples:

app_progress_bar_example.cc.

void AppProgressBar::begin_task ( const CoreString &  name, const bool &  compute_duration = false  )

inline

Start a new task that will cover from the current progress to 100% of the parent task.

Parameters

name	the name of the task
compute_duration	when true, the duration of the task will be computed

void AppProgressBar::begin_task ( const float &  scale, const bool &  compute_duration = false  )

inline

Start a new task.

Parameters

scale	the percentage of the parent task that the current task will cover
compute_duration	when true, the duration of the task will be computed

void AppProgressBar::begin_task	(	const CoreString &	name,
		const float &	scale,
		const bool &	compute_duration = false
	)

Start a new task.

Parameters

name	the name of the task
scale	the percentage of the parent task that the current task will cover
compute_duration	when true, the duration of the task will be computed

void AppProgressBar::destroy ( )

inline

Tells the progress bar to destroy itself once it is not useful anymore.

Note

A progress bar remains visible in UI until it is destroyed.

Examples:

app_progress_bar_example.cc.

unsigned long AppProgressBar::end_task

(

)

End the current task.

Note

The progress of the parent task is automatically updated according to the coverage of the current task.

Returns

the duration in milliseconds of the task (0 when disabled)

Examples:

app_progress_bar_example.cc.

void AppProgressBar::finish

(

)

Set the progress to 100% and comute the total duration.

stops progress bar

const unsigned long& AppProgressBar::get_duration ( ) const

inline

Get the duration of the process that has been monitored by the progress bar.

Note

This must be called after finish().

void AppProgressBar::increment ( )

inline

Increment the progress value with the recorded increment.

Note

This method should be used only with big increment values because it refreshes the UI each time it is called.

void AppProgressBar::increment ( const float &  value )

inline

Increment the progress of the current task with the specified value.

Note

This method should not be called too often because it informs the UI to refresh.

void AppProgressBar::set_step_count ( const unsigned int &  step_count )

inline

Set a number of step that will be processed for the current task.

Note

This method is recommended over increment() method because it will refresh the UI only if needed (switching from a percent to anothed one).

See Also

step for more details

Examples:

app_progress_bar_example.cc.

void AppProgressBar::set_value ( const float &  value )

inline

Set the progress value for the current task.

Note

This method should not be called too often because it informs the UI to refresh.

void AppProgressBar::start

(

)

Reset the progress to 0%.

starts progress bar runtime

void AppProgressBar::step ( const unsigned int &  i )

inline

Specify the step that has been processed.

Note

The UI will be refreshed only when needed.

See Also

set_step_count

Examples:

app_progress_bar_example.cc.