60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#ifndef ISCREENSAVER_H
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#define ISCREENSAVER_H
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#include "IInterface.h"
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//! Screen saver interface
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/*!
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This interface defines the methods common to all screen savers.
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*/
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class IScreenSaver : public IInterface {
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public:
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// note -- the c'tor/d'tor must *not* enable/disable the screen saver
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//! @name manipulators
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//@{
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//! Enable screen saver
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/*!
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Enable the screen saver, restoring the screen saver settings to
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what they were when disable() was previously called. If disable()
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wasn't previously called then it should keep the current settings
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or use reasonable defaults.
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*/
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virtual void enable() = 0;
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//! Disable screen saver
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/*!
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Disable the screen saver, saving the old settings for the next
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call to enable().
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*/
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virtual void disable() = 0;
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//! Activate screen saver
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/*!
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Activate (i.e. show) the screen saver.
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*/
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virtual void activate() = 0;
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//! Deactivate screen saver
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/*!
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Deactivate (i.e. hide) the screen saver, reseting the screen saver
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timer.
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*/
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virtual void deactivate() = 0;
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//@}
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//! @name accessors
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//@{
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//! Test if screen saver on
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/*!
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Returns true iff the screen saver is currently active (showing).
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*/
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virtual bool isActive() const = 0;
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//@}
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};
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#endif
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