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Profiler: Display correctly rounded percentages as '#.##%'
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@ -111,10 +111,16 @@ GUI::Variant ProfileModel::data(GUI::ModelIndex const& index, GUI::ModelRole rol
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return {};
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}
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if (role == GUI::ModelRole::Display) {
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auto round_percentages = [this](auto percentage) {
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return roundf(static_cast<float>(percentage) / static_cast<float>(m_profile.filtered_event_indices().size())
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* percent_digits_rounding_constant)
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* 100.0f / percent_digits_rounding_constant;
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auto round_percentages = [this](auto value) {
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auto percentage_full_precision = round_to<int>(
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static_cast<float>(value)
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* 100.f
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/ static_cast<float>(m_profile.filtered_event_indices().size())
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* percent_digits_rounding);
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return String::formatted(
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"{}.{:02}",
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percentage_full_precision / percent_digits_rounding,
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percentage_full_precision % percent_digits_rounding);
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};
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if (index.column() == Column::SampleCount) {
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if (m_profile.show_percentages())
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@ -14,8 +14,8 @@ namespace Profiler {
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class Profile;
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// Number of digits after the decimal point for sample percentages.
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static constexpr int const number_of_percent_digits = 3;
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static constexpr float const percent_digits_rounding_constant = AK::pow(10, number_of_percent_digits);
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static constexpr int const number_of_percent_digits = 2;
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static constexpr int const percent_digits_rounding = AK::pow(10, number_of_percent_digits);
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class ProfileModel final : public GUI::Model {
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public:
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