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Internals: Tweaked ParseFormatPrecision(), clarified its more limited purpose, allowing 2-digits precisions since it makes (some) sense for doubles. (#648)

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omar 2018-04-30 16:52:16 +02:00
parent 92f0165f85
commit a1da7f9860
1 changed files with 17 additions and 16 deletions
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33
imgui.cpp
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@ -8625,26 +8625,27 @@ const char* ImGui::ParseFormatTrimDecorations(const char* fmt, char* buf, int bu
} }
// Parse display precision back from the display format string // Parse display precision back from the display format string
// FIXME: This is still used by some navigation code path to infer a minimum tweak step, but we should aim to rework widgets so it isn't needed.
int ImGui::ParseFormatPrecision(const char* fmt, int default_precision) int ImGui::ParseFormatPrecision(const char* fmt, int default_precision)
{ {
int precision = default_precision; fmt = ParseFormatTrimDecorationsLeading(fmt);
while ((fmt = strchr(fmt, '%')) != NULL) if (fmt[0] != '%')
{ return default_precision;
fmt++;
while (*fmt >= '0' && *fmt <= '9')
fmt++; fmt++;
if (fmt[0] == '%') { fmt++; continue; } // Ignore "%%" int precision = INT_MAX;
while (*fmt >= '0' && *fmt <= '9') if (*fmt == '.')
fmt++; {
if (*fmt == '.') fmt = ImAtoi(fmt + 1, &precision);
{ if (precision < 0 || precision > 99)
fmt = ImAtoi(fmt + 1, &precision); precision = default_precision;
if (precision < 0 || precision > 10)
precision = default_precision;
}
if (*fmt == 'e' || *fmt == 'E') // Maximum precision with scientific notation
precision = -1;
break;
} }
return precision; if (*fmt == 'e' || *fmt == 'E') // Maximum precision with scientific notation
precision = -1;
if ((*fmt == 'g' || *fmt == 'G') && precision == INT_MAX)
precision = -1;
return (precision == INT_MAX) ? default_precision : precision;
} }
static float GetMinimumStepAtDecimalPrecision(int decimal_precision) static float GetMinimumStepAtDecimalPrecision(int decimal_precision)