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Process: Display single digit precision for CPU% greater than 99.9% 

Since commit edf319e[1], we're dynamically adjusting column width of
"CPU%", showing single digit precision also for values greater than
"99.9%" makes "CPU%" column consistent with all other values.

[1]: edf319e53d

Change "Process_printPercentage()" function's logic to always display
value (i.e. "val") with single precision. Except when value is greater
than "99.9%" for columns like "MEM%", whose width is fixed to "4" and
value cannot go beyond "100%".

Credits: @Explorer09, thanks for the patch[2] to fix title alignment
         issue.

[2]: https://github.com/htop-dev/htop/pull/959#issuecomment-1092480951

Closes: #957
This commit is contained in:
Kumar 2022-04-14 16:35:02 +05:30 committed by BenBE
parent e053446cbd
commit 0af08bcfc9
11 changed files with 28 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
Process.c
View File

@ -739,17 +739,20 @@ void Process_printLeftAlignedField(RichString* str, int attr, const char* conten
void Process_printPercentage(float val, char* buffer, int n, uint8_t width, int* attr) {
if (val >= 0) {
if (val < 99.9F) {
if (val < 0.05F) {
if (val < 0.05F)
*attr = CRT_colors[PROCESS_SHADOW];
}
xSnprintf(buffer, n, "%*.1f ", width, val);
} else {
else if (val >= 99.9F)
*attr = CRT_colors[PROCESS_MEGABYTES];
if (val < 100.0F)
val = 100.0F; // Don't round down and display "val" as "99".
xSnprintf(buffer, n, "%*.0f ", width, val);
int precision = 1;
// Display "val" as "100" for columns like "MEM%".
if (width == 4 && val > 99.9F) {
precision = 0;
val = 100.0F;
}
xSnprintf(buffer, n, "%*.*f ", width, precision, val);
} else {
*attr = CRT_colors[PROCESS_SHADOW];
xSnprintf(buffer, n, "%*.*s ", width, width, "N/A");
@ -1280,13 +1283,14 @@ void Process_updateFieldWidth(ProcessField key, size_t width) {
}
void Process_updateCPUFieldWidths(float percentage) {
if (percentage < 99.9) {
if (percentage < 99.9F) {
Process_updateFieldWidth(PERCENT_CPU, 4);
Process_updateFieldWidth(PERCENT_NORM_CPU, 4);
return;
}
uint8_t width = ceil(log10(percentage + .2));
// Add additional two characters, one for "." and another for precision.
uint8_t width = ceil(log10(percentage + 0.1)) + 2;
Process_updateFieldWidth(PERCENT_CPU, width);
Process_updateFieldWidth(PERCENT_NORM_CPU, width);

3
ProcessList.c
View File

@ -116,6 +116,9 @@ static const char* alignedProcessFieldTitle(const ProcessList* this, ProcessFiel
if (Process_fields[field].autoWidth) {
static char titleBuffer[UINT8_MAX + 1];
if (field == PERCENT_CPU)
xSnprintf(titleBuffer, sizeof(titleBuffer), "%*s ", Process_fieldWidths[field], title);
else
xSnprintf(titleBuffer, sizeof(titleBuffer), "%-*.*s ", Process_fieldWidths[field], Process_fieldWidths[field], title);
return titleBuffer;
}