426 lines
14 KiB
C++
426 lines
14 KiB
C++
#ifndef UTILITY_H
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#define UTILITY_H
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#include <Qt>
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#include <stdint.h>
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#include <QByteArray>
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#include <QDateTime>
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#include <QDebug>
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#include <QApplication>
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#include <QRect>
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#include <QComboBox>
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#include <QStandardItemModel>
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#include <QColor>
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#include <QString>
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#include <array>
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//#include <QDesktopWidget>
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enum TimeStyle
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{
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TS_SECONDS,
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TS_MICROS,
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TS_MILLIS,
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TS_CLOCK,
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TS_START_DATE,
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};
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// 32 dark, saturated colors — all designed for readability on white backgrounds.
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// Minimum contrast ratio ≥ 4.5:1 against white (WCAG AA).
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static constexpr std::array<QRgb, 32> kRowPalette = {{
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0xFFC62828, // 0 Red 800
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0xFFE53935, // 1 Red 600
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0xFFD84315, // 2 Deep Orange 800
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0xFFEF6C00, // 3 Orange 800
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0xFFF9A825, // 4 Amber 800
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0xFF558B2F, // 5 Green 800
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0xFF2E7D32, // 6 Green 900
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0xFF00695C, // 7 Teal 800
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0xFF00838F, // 8 Cyan 800
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0xFF0277BD, // 9 Blue 800
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0xFF1565C0, // 10 Blue 900
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0xFF283593, // 11 Indigo 900
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0xFF4527A0, // 12 Deep Purple 800
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0xFF6A1B9A, // 13 Purple 900
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0xFF880E4F, // 14 Pink 900
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0xFFAD1457, // 15 Pink 800
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0xFF37474F, // 16 Blue Grey 800
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0xFF4E342E, // 17 Brown 800
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0xFF827717, // 18 Lime 900
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0xFF1B5E20, // 19 Green 900 alt
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0xFF006064, // 20 Cyan 900
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0xFF01579B, // 21 Light Blue 900
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0xFF0D47A1, // 22 Blue 900 alt
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0xFF311B92, // 23 Deep Purple 900
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0xFF4A148C, // 24 Purple 900 alt
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0xFFB71C1C, // 25 Red 900
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0xFFBF360C, // 26 Deep Orange 900
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0xFFE65100, // 27 Orange 900
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0xFF33691E, // 28 Light Green 900
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0xFF004D40, // 29 Teal 900
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0xFF263238, // 30 Blue Grey 900
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0xFF5D4037, // 31 Brown 700
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}};
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class Utility
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{
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public:
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static bool decimalMode;
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static TimeStyle timeStyle;
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static QString timeFormat;
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static QDateTime startDate;
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static bool useStartDate;
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static QString fullyQualifiedNameSeperator;
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static void SetComboBoxItemEnabled(QComboBox * comboBox, int index, bool enabled)
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{
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auto * model = qobject_cast<QStandardItemModel*>(comboBox->model());
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assert(model);
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if(!model) return;
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auto * item = model->item(index);
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assert(item);
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if(!item) return;
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item->setEnabled(enabled);
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}
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//determines whether the window position is within any available screens. If it is not we default
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//back to 0,0 which is going to be on screen. This fixes a problem where some operating systems would
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//otherwise let you put windows on a second monitor, disconnect that monitor, and still put windows on it.
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static QPoint constrainedWindowPos(QPoint originalPos)
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{
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QScreen *screen = QGuiApplication::screenAt(originalPos);
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if (!screen)
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{
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return QPoint(0,0);
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}
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return originalPos;
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}
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static QString unQuote(QString inStr)
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{
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QStringList temp;
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temp = inStr.split('\"');
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if (temp.length() >= 3)
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return temp[1];
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return inStr;
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}
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static uint64_t ParseStringToNum(QByteArray input)
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{
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uint64_t temp = 0;
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input = input.toUpper();
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if (input.startsWith("0X") || input.startsWith("X")) //hex number
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{
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if (input.length() < 3) temp = 0;
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else temp = input.right(input.size() - 2).toLongLong(nullptr, 16);
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}
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else if (input.startsWith("0B") || input.startsWith("B")) //binary number
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{
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input = input.right(input.size() - 1); //remove the B
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for (int i = 0; i < input.length(); i++)
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{
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if (input[i] == '1') temp += (uint64_t)1 << (input.length() - i - 1);
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}
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}
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else //decimal number
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{
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temp = input.toLongLong();
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}
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return temp;
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}
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static uint64_t ParseStringToNum(QString input)
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{
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return ParseStringToNum(input.toUtf8());
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}
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static uint ParseStringToNum2(QString pInput, bool* pOk_p = nullptr)
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{
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if(pInput.startsWith("0b"))
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{
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pInput.remove(0, 2);
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return pInput.toUInt(pOk_p, 2);
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}
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return pInput.toUInt(pOk_p, 0);
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}
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static uint64_t GetTimeMS()
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{
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QDateTime stamp = QDateTime::currentDateTime();
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return (((static_cast<uint64_t>(stamp.time().hour()) * 3600ull) + (static_cast<uint64_t>(stamp.time().minute()) * 60ull)
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+ (static_cast<uint64_t>(stamp.time().second())) * 1000ull) + static_cast<uint64_t>(stamp.time().msec()));
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}
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//prints hex numbers in uppercase with 0's filling out the number depending
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//on the size needed. Promotes hex numbers to either 2, 4, or 8 digits
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static QString formatHexNum(uint64_t input)
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{
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if (input < 256)
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return "0x" + QString::number(input, 16).toUpper().rightJustified(2,'0');
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if (input < 65536)
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return "0x" + QString::number(input, 16).toUpper().rightJustified(4,'0');
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if (input < 4294967296)
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return "0x" + QString::number(input, 16).toUpper().rightJustified(8,'0');
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return "0x" + QString::number(input, 16).toUpper().rightJustified(16,'0');
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}
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//uses decimalMode to see if it should show value as decimal or hex
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static QString formatNumber(uint64_t value)
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{
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if (decimalMode)
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{
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return QString::number(value, 10);
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}
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else return formatHexNum(value);
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}
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static QString formatCANID(uint64_t id, bool extended)
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{
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if (decimalMode) return QString::number(id, 10);
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if (extended)
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{
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return "0x" + QString::number(id, 16).toUpper().rightJustified(8,'0');
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}
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else
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{
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id = id & 0x7FF;
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return "0x" + QString::number(id, 16).toUpper().rightJustified(3,'0');
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}
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}
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static QString formatCANID(uint64_t id)
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{
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if (id < 0x800) return formatCANID(id, false);
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return formatCANID(id, true);
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}
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static QString formatByteAsBinary(uint8_t value)
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{
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QString output;
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for (int b = 7; b >= 0; b--)
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{
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if (value & (1 << b)) output += "1";
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else output += "0";
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}
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return output;
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}
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static QString formatByteAsHex(uint8_t value)
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{
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return QString::number(value, 16).toUpper().rightJustified(2,'0');
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}
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static QVariant formatTimestamp(uint64_t timestamp)
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{
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switch (timeStyle)
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{
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case TS_CLOCK:
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return QDateTime::fromMSecsSinceEpoch(timestamp / 1000);
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break;
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case TS_START_DATE:
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return startDate.addMSecs(timestamp / 1000);
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break;
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case TS_MILLIS:
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return (double)timestamp / 1000.0;
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break;
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case TS_MICROS:
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return (unsigned long long)(timestamp);
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break;
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case TS_SECONDS:
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return (double)timestamp / 1000000.0;
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break;
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}
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return QVariant();
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}
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//parses the input string to grab as much of it as possible while staying alpha numeric
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static QString grabAlphaNumeric(QString &input)
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{
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QString builder;
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QChar thisChar;
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for (int i = 0; i < input.length(); i++)
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{
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thisChar = input[i];
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if (thisChar.isLetterOrNumber() || thisChar == ':' || thisChar == '~') builder.append(input[i]);
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else
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{
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//qDebug() << "i: "<< i << " len: " << input.length();
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if (i < (input.length() - 1)) input = input.right(input.length() - i);
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else input = "";
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return builder;
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}
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}
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//qDebug() << "Reached end of string in grabAlphaNumeric";
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input = "";
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return builder;
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}
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static QString grabOperation(QString &input)
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{
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QString builder;
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QChar thisChar = input[0];
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if (thisChar == '+' || thisChar == '-' || thisChar == '*' || thisChar == '/' || thisChar == '^' || thisChar == '&' || thisChar == '|' || thisChar == '=' || thisChar == '%')
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{
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input = input.right(input.length() - 1);
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builder = thisChar;
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}
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return builder;
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}
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static int getByteFromBitPosition(int bitPos)
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{
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return bitPos / 8;
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}
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static int getBitFromBitPosition(int bitPos)
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{
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return bitPos & 7;
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}
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//simple linear interpolation between value1 and value2. sample point is 0.0 to 1.0
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static double Lerp(double value1, double value2, double samplePoint)
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{
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return (value1 * (1.0 - samplePoint)) + (value2 * samplePoint);
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}
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/* A unified function that can extract a signal from the (up to) 64 bits of data bytes in a CAN frame
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* handles both little and big endian signals (and floats too).
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*/
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static int64_t processIntegerSignal(const QByteArray data, int startBit, int sigSize, bool littleEndian, bool isSigned)
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{
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uint64_t result = 0;
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int bit = 0;
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int maxBytes = (startBit + sigSize) / 8;
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if (data.size() < maxBytes) return 0; //if signal extends past the end of data then abort
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if (littleEndian)
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{
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/*
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int currByte = (startBit) / 8;
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int currOffset = startBit - (currByte * 8);
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int remainingBits = qMax(0, (sigSize - (8 - currOffset)) );
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int prevBits = qMin((8 - currOffset), sigSize);
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result = data[currByte] >> currOffset;
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result &= ( (1 << sigSize) - 1); //doesn't hurt to do this even if sigSize is way larger than the # of bits we've got so far
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while (remainingBits > 0)
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{
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currByte++;
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if (remainingBits >= 8) //use this entire byte, its easy
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{
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result += data[currByte] << prevBits;
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remainingBits -= 8;
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prevBits += 8;
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}
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else //use only part of this byte. We're going to need to mask it
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{
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result += ((data[currByte] & ((1 << remainingBits) - 1) ) << prevBits);
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remainingBits = 0;
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}
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}*/
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bit = startBit;
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for (int bitpos = 0; bitpos < sigSize; bitpos++)
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{
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if (bit < 512) {
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int bytePos = bit / 8;
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if (bytePos >= data.count()) return 0; //error!
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if (data[bit / 8] & (1 << (bit % 8)))
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result += (1ULL << bitpos);
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}
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bit++;
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}
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}
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else //motorola / big endian mode
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{
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bit = startBit;
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for (int bitpos = 0; bitpos < sigSize; bitpos++)
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{
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if (bit < 512) {
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int bytePos = bit / 8;
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if (bytePos >= data.count()) return 0; //error!
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if (data[bit / 8] & (1 << (bit % 8)))
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result += (1ULL << (sigSize - bitpos - 1));
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}
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if ((bit % 8) == 0)
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bit += 15;
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else bit--;
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}
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}
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if (isSigned)
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{
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uint64_t mask = (1ULL << (sigSize - 1));
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if ((result & mask) == mask) //is the highest bit possible for this signal size set?
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{
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/*
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* if so we need to also set every bit higher in the result int too.
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* This leads to the below two lines that are nasty. Here's the theory behind that...
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* If the value is signed and the highest bit is set then it is negative. To create
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* a negative value out of this even though the variable result is 64 bit we have to
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* run 1's all of the way up to bit 63 in result. -1 is all ones for whatever size integer
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* you have. So, it's 64 1's in this case.
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* signedMask is done this way:
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* first you take the signal size and shift 1 up that far. Then subtract one. Lets
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* see that for a 16 bit signal:
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* (1 << 16) - 1 = the first 16 bits set as 1's. So far so good. We then negate the whole
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* thing which flips all bits. Thus signedMask ends up with 1's everwhere that the signal
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* doesn't take up in the 64 bit signed integer result. Then, result has an OR operation on
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* it with the old value and -1 masked so that the the 1 bits from -1 don't overwrite bits from the
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* actual signal. This extends the sign bits out so that the integer result reads as the proper negative
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* value. We dont need to do any of this if the sign bit wasn't set.
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*/
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uint64_t signedMask = ~((1ULL << sigSize) - 1);
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result = (-1LL & signedMask) | result;
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return (int64_t)(result);
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}
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}
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return result;
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}
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// FNV-1a 32-bit hash — fast, good distribution, no dependencies.
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static quint32 hashString(const QString &s)
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{
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quint32 hash = 2166136261u;
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for (const QChar ch : s) {
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hash ^= static_cast<quint32>(ch.unicode());
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hash *= 16777619u;
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}
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return hash;
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}
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// Returns a background QColor deterministically chosen from the palette.
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// The same string always maps to the same color.
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static QColor colorForString(const QString &s)
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{
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const quint32 idx = hashString(s) % static_cast<quint32>(kRowPalette.size());
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// Use a light tint (alpha ~18%) as the row background so text stays readable.
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QColor base(kRowPalette[idx]);
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base.setAlpha(46); // ~18% — comfortable on white, still clearly tinted
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return base;
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}
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// Opaque variant — useful for badges, tags, or legend swatches.
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static QColor solidColorForString(const QString &s)
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{
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const quint32 idx = hashString(s) % static_cast<quint32>(kRowPalette.size());
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return QColor(kRowPalette[idx]);
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}
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};
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#endif // UTILITY_H
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