libyui-qt-pkg
2.45.27
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Helper class to manage warnings that are to be issued when a value enters a predefined range, but repeated only when that value leaves a (wider) "proximity" range and then re-enters the (narrower) "inner" range. More...
#include <YQPkgDiskUsageList.h>
Public Member Functions | |
YQPkgWarningRangeNotifier () | |
Constructor. | |
void | enterRange () |
Notification that the inner range is entered. More... | |
void | enterProximity () |
Notification that the proximity range is entered, i.e. More... | |
void | warningPostedNotify () |
Notification that a warning has been posted. | |
bool | inRange () const |
Check if the value is in range, i.e. More... | |
bool | needWarning () const |
Check if a warning should be posted, i.e. More... | |
bool | leavingProximity () const |
Check if the value is leaving the proximity range. | |
void | clear () |
Clear the current values, i.e. More... | |
void | clearHistory () |
Clear everything, including all history values such as if a warning has been posted. | |
Protected Attributes | |
bool | _inRange |
bool | _isClose |
bool | _hasBeenClose |
bool | _warningPosted |
Helper class to manage warnings that are to be issued when a value enters a predefined range, but repeated only when that value leaves a (wider) "proximity" range and then re-enters the (narrower) "inner" range.
Example: Disk space usage:
70% 75% 80% [proximity range start] 85% 90% [inner range start] 95% 100%
A warning is to be posted when there is only 90% disk space left. After the warning is displayed, there shall be no more warning until disk usage decreases below 80% (the proximity range) and then later increases again to 90%.
The net effect of all that is to avoid posting the warning over and over again while the value changes back and forth around the boundary of the ( inner ) warning range.
Definition at line 77 of file YQPkgDiskUsageList.h.
void YQPkgWarningRangeNotifier::clear | ( | ) |
Clear the current values, i.e.
prepare for a new round of checks
Definition at line 368 of file YQPkgDiskUsageList.cc.
void YQPkgWarningRangeNotifier::enterProximity | ( | ) |
Notification that the proximity range is entered, i.e.
that the value is getting near the inner range. 'enterRange()' automatically includes this, too.
Definition at line 394 of file YQPkgDiskUsageList.cc.
void YQPkgWarningRangeNotifier::enterRange | ( | ) |
Notification that the inner range is entered.
The caller has to decide the criteria for that.
Definition at line 386 of file YQPkgDiskUsageList.cc.
bool YQPkgWarningRangeNotifier::inRange | ( | ) | const |
Check if the value is in range, i.e.
if anybody from the outside has called 'enterRange()' since the last call to 'clear()'.
Definition at line 409 of file YQPkgDiskUsageList.cc.
bool YQPkgWarningRangeNotifier::needWarning | ( | ) | const |
Check if a warning should be posted, i.e.
if the value is currently in range ( see 'inRange() ) and there has been no notification yet that a warning has already been posted.
Definition at line 423 of file YQPkgDiskUsageList.cc.