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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2024 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_BLINK
#define BRLTTY_INCLUDED_BLINK
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef struct BlinkDescriptorStruct BlinkDescriptor;
extern BlinkDescriptor screenCursorBlinkDescriptor;
extern BlinkDescriptor attributesUnderlineBlinkDescriptor;
extern BlinkDescriptor uppercaseLettersBlinkDescriptor;
extern BlinkDescriptor speechCursorBlinkDescriptor;
extern int getBlinkPeriod (BlinkDescriptor *blink);
extern int getBlinkPercentVisible (BlinkDescriptor *blink);
extern int setBlinkProperties (BlinkDescriptor *blink, int period, int percentVisible);
static inline int setBlinkPeriod (BlinkDescriptor *blink, int period) {
return setBlinkProperties(blink, period, getBlinkPercentVisible(blink));
}
static inline int setBlinkPercentVisible (BlinkDescriptor *blink, int percentVisible) {
return setBlinkProperties(blink, getBlinkPeriod(blink), percentVisible);
}
extern const char *getBlinkName (BlinkDescriptor *blink);
extern int getBlinkVisibleTime (BlinkDescriptor *blink);
extern int getBlinkInvisibleTime (BlinkDescriptor *blink);
extern int isBlinkEnabled (BlinkDescriptor *blink);
extern int isBlinkVisible (const BlinkDescriptor *blink);
extern void setBlinkState (BlinkDescriptor *blink, int visible);
extern void unrequireAllBlinkDescriptors (void);
extern void requireBlinkDescriptor (BlinkDescriptor *blink);
extern void resetAllBlinkDescriptors (void);
extern void stopAllBlinkDescriptors (void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_BLINK */
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