tlp::PluginProgress Class Reference

#include <PluginProgress.h>

Public Member Functions
virtual void	cancel ()=0
virtual std::string	getError ()=0
virtual bool	isPreviewMode () const =0
virtual ProgressState	progress (int step, int max_step)
virtual void	setComment (const std::string &comment)=0
virtual void	setError (const std::string &error)=0
void	setPreviewHandler (ProgressPreviewHandler *)
virtual void	setPreviewMode (bool drawPreview)=0
virtual void	showPreview (bool showPreview)=0
virtual ProgressState	state () const =0
virtual void	stop ()=0

Detailed Description

PluginProcess subclasses are meant to notify about the progress state of some process (typically a plugin)

PluginProgress are mainly used alongside with tlp::Plugin instances to give user a visual feedback about the progress of the plugin. Every plugin in tulip got a pluginProgress member they can call to give progress feedbacks. When running, the plugin should make a call to tlp::PluginProgress::progress() indicating the current state of the compuation. The tlp::PluginProgress returns a tlp::ProgressState indicating what behavior the underleying system should have (see tlp::ProgressState for details)

Definition at line 74 of file PluginProgress.h.

Member Function Documentation

virtual void tlp::PluginProgress::cancel ( )

pure virtual

Sets the state flag to cancel, notifying to the process that the user wants to cancel it. Canceling a process must stop it and revert all the changes performed since its start.

Returns

void

virtual std::string tlp::PluginProgress::getError ( )

pure virtual

Returns a message describing the error encountered during the process. If no error has been encountered, an empty string is returned.

Returns

:string A description of the encountered error, if any.

virtual bool tlp::PluginProgress::isPreviewMode ( ) const

pure virtual

The preview mode redraws the graph while applying the algorithm, making it slower.

Returns

bool Whether the preview mode is activated.

virtual ProgressState tlp::PluginProgress::progress ( int  step, int  max_step  )

virtual

Notifies the progression of the process.

Parameters

step	The current step number.
max_step	The total number of steps.

• Warning

  For default previsualisation handling to work, be sure to call PluginProgress::progress in this method (the return value can be ignored)

  Returns

  tlp::ProgressState a value indicating whether the progress has been stopped, cancelled, or will continue.

  See Also

  tlp::ProgressState

virtual void tlp::PluginProgress::setComment ( const std::string &  comment )

pure virtual

Changes the comment about the process progression.

Parameters

comment

A description of what the plugin is currently doing, displayed to inform the user.

Returns

void

virtual void tlp::PluginProgress::setError ( const std::string &  error )

pure virtual

Sets the message describing the error encountered during the process.

Parameters

error

The description of the encountered error.

Returns

void

virtual void tlp::PluginProgress::setPreviewMode ( bool  drawPreview )

pure virtual

The preview mode redraws the graph while applying the algorithm, making it slower.

Parameters

drawPreview

Whether the preview should be drawn.

Returns

void

virtual void tlp::PluginProgress::showPreview ( bool  showPreview )

pure virtual

This tells the widget if it should show a preview checkbox, allowing the user to decide if the algorithm should draw a preview or not.

Parameters

showPreview

Whether the progress widget should contain a preview checkbox or not.

Returns

void

virtual ProgressState tlp::PluginProgress::state ( ) const

pure virtual

Gets the current internal state of the PluginProgress.

Returns

tlp::ProgressState The current state.

virtual void tlp::PluginProgress::stop ( )

pure virtual

Sets the state flag to stop, notifying to the process that the user wants to stop it. Stopping a process does not revert changes.

Returns

void