[2768] | 1 | using System;
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| 2 | using System.Drawing;
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| 3 |
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[4068] | 4 | namespace Netron.Diagramming.Core {
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| 5 | static class Measurements {
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| 6 | [ThreadStaticAttribute()]
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| 7 | private static float screenDpiX = 96.0F;
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[2768] | 8 |
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[4068] | 9 | [ThreadStaticAttribute()]
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| 10 | private static float screenDpiY = 96.0F;
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[2768] | 11 |
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[4068] | 12 | private static float[,] conversionRatios = new float[,]{
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[2768] | 13 | {1.0F, 4.0F, 1.3333334e-002F, 0.33866665F, 0.95999998F},
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| 14 | {0.25F, 1.0F, 3.3333334e-003F, 8.4666662e-002F, 0.23999999F},
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| 15 | {75.0F, 300.0F, 1.0F, 25.4F, 72.0F},
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| 16 | {2.9527559F, 11.811024F, 3.9370079e-002F, 1.0F, 2.8346457F},
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| 17 | {1.0416666F, 4.1666665F, 1.3888889e-002F, 0.35277778F, 1.0F},
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| 18 | };
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| 19 |
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[4068] | 20 | private static MeasurementsUnit[] englishUnits;
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[2768] | 21 |
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[4068] | 22 | private static MeasurementsUnit[] metricUnits;
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[2768] | 23 |
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| 24 |
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[4068] | 25 | private static int GraphicsUnitIndex(GraphicsUnit graphicsUnit) {
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| 26 | int i = -1;
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| 27 | switch (graphicsUnit) {
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| 28 | case GraphicsUnit.Display:
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| 29 | i = 0;
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| 30 | break;
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[2768] | 31 |
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[4068] | 32 | case GraphicsUnit.Document:
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| 33 | i = 1;
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| 34 | break;
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[2768] | 35 |
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[4068] | 36 | case GraphicsUnit.Inch:
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| 37 | i = 2;
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| 38 | break;
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[2768] | 39 |
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[4068] | 40 | case GraphicsUnit.Millimeter:
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| 41 | i = 3;
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| 42 | break;
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[2768] | 43 |
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[4068] | 44 | case GraphicsUnit.Point:
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| 45 | i = 4;
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| 46 | break;
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| 47 | }
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| 48 | return i;
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| 49 | }
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[2768] | 50 |
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[4068] | 51 | public static void InitScreenDPI() {
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| 52 | Graphics graphics = Graphics.FromHwnd((IntPtr)0);
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| 53 | if (graphics != null) {
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| 54 | screenDpiX = graphics.DpiX;
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| 55 | screenDpiY = graphics.DpiY;
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| 56 | }
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| 57 | }
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[2768] | 58 |
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[4068] | 59 | public static float UnitsPerInch(GraphicsUnit unit) {
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| 60 | float f = 1.0F;
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| 61 | switch (unit) {
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| 62 | case GraphicsUnit.Inch:
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| 63 | return 1.0F;
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[2768] | 64 |
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[4068] | 65 | case GraphicsUnit.Millimeter:
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| 66 | return 25.4F;
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[2768] | 67 |
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[4068] | 68 | case GraphicsUnit.Point:
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| 69 | return 72.0F;
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[2768] | 70 |
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[4068] | 71 | case GraphicsUnit.Document:
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| 72 | return 300.0F;
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[2768] | 73 |
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[4068] | 74 | case GraphicsUnit.Display:
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| 75 | return 75.0F;
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[2768] | 76 |
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[4068] | 77 | default:
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| 78 | return f;
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| 79 | }
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| 80 | }
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[2768] | 81 |
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[4068] | 82 | public static float Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, float dpi, float value) {
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| 83 | float f1 = value;
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| 84 | if (fromUnits != toUnits) {
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| 85 | float f2;
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[2768] | 86 |
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[4068] | 87 | GraphicsUnit graphicsUnit;
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[2768] | 88 |
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[4068] | 89 | if (fromUnits == GraphicsUnit.Pixel) {
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| 90 | graphicsUnit = GraphicsUnit.Inch;
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| 91 | f2 = value / dpi;
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| 92 | } else {
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| 93 | f2 = value;
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| 94 | graphicsUnit = fromUnits;
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[2768] | 95 | }
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[4068] | 96 | if (graphicsUnit == toUnits) {
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| 97 | f1 = f2;
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| 98 | } else if (toUnits == GraphicsUnit.Pixel) {
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| 99 | if (graphicsUnit != GraphicsUnit.Inch) {
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| 100 | int i = GraphicsUnitIndex(graphicsUnit);
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| 101 | int j = GraphicsUnitIndex(GraphicsUnit.Inch);
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| 102 | f2 *= conversionRatios[i, j];
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| 103 | }
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| 104 | f1 = f2 * dpi;
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| 105 | } else {
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| 106 | int i = GraphicsUnitIndex(graphicsUnit);
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| 107 | int j = GraphicsUnitIndex(toUnits);
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| 108 | f1 = f2 * conversionRatios[i, j];
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| 109 | }
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| 110 | }
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| 111 | return f1;
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| 112 | }
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[2768] | 113 |
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[4068] | 114 | public static float Convert(GraphicsUnit fromUnits, float fromScale, GraphicsUnit toUnits, float toScale, float dpi, float value) {
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| 115 | float f1 = value;
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| 116 | if (fromUnits != toUnits || fromScale != toScale) {
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| 117 | float f2;
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[2768] | 118 |
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[4068] | 119 | GraphicsUnit graphicsUnit;
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[2768] | 120 |
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[4068] | 121 | if (fromUnits == GraphicsUnit.Pixel) {
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| 122 | graphicsUnit = GraphicsUnit.Inch;
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| 123 | f2 = value / dpi;
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| 124 | } else {
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| 125 | f2 = value;
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| 126 | graphicsUnit = fromUnits;
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[2768] | 127 | }
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[4068] | 128 | f2 *= fromScale;
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| 129 | if (graphicsUnit == toUnits) {
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| 130 | f1 = f2;
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| 131 | } else if (toUnits == GraphicsUnit.Pixel) {
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| 132 | if (graphicsUnit != GraphicsUnit.Inch) {
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| 133 | int i = GraphicsUnitIndex(graphicsUnit);
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| 134 | int j = GraphicsUnitIndex(GraphicsUnit.Inch);
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| 135 | f2 *= conversionRatios[i, j];
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| 136 | }
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| 137 | f1 = f2 * dpi;
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| 138 | } else {
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| 139 | int i = GraphicsUnitIndex(graphicsUnit);
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| 140 | int j = GraphicsUnitIndex(toUnits);
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| 141 | f1 = f2 * conversionRatios[i, j];
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[2768] | 142 | }
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[4068] | 143 | f1 /= toScale;
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| 144 | }
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| 145 | return f1;
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| 146 | }
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[2768] | 147 |
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[4068] | 148 | public static float Convert(MeasurementsUnit fromUnits, GraphicsUnit toUnits, float toScale, float dpi, float value) {
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| 149 | GraphicsUnit graphicsUnit;
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| 150 | float f;
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| 151 | MeasurementsUnitToGraphicsUnit(fromUnits, out graphicsUnit, out f);
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| 152 | return Convert(graphicsUnit, f, toUnits, toScale, dpi, value);
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| 153 | }
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[2768] | 154 |
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[4068] | 155 | public static float Convert(GraphicsUnit fromUnits, float fromScale, MeasurementsUnit toUnits, float dpi, float value) {
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| 156 | GraphicsUnit graphicsUnit;
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| 157 | float f;
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| 158 | MeasurementsUnitToGraphicsUnit(toUnits, out graphicsUnit, out f);
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| 159 | return Convert(fromUnits, fromScale, graphicsUnit, f, dpi, value);
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| 160 | }
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[2768] | 161 |
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[4068] | 162 | public static float Convert(MeasurementsUnit fromUnits, MeasurementsUnit toUnits, float dpi, float value) {
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| 163 | GraphicsUnit graphicsUnit1, graphicsUnit2;
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| 164 | float f1, f2;
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| 165 | MeasurementsUnitToGraphicsUnit(fromUnits, out graphicsUnit1, out f1);
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| 166 | MeasurementsUnitToGraphicsUnit(toUnits, out graphicsUnit2, out f2);
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| 167 | return Convert(graphicsUnit1, f1, graphicsUnit2, f2, dpi, value);
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| 168 | }
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[2768] | 169 |
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[4068] | 170 | public static float Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, float value) {
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| 171 | return Convert(fromUnits, toUnits, screenDpiX, value);
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| 172 | }
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[2768] | 173 |
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[4068] | 174 | public static float Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, Graphics grfx, float value) {
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| 175 | float f = screenDpiX;
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| 176 | if (grfx != null) {
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| 177 | f = grfx.DpiX;
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| 178 | }
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| 179 | return Convert(fromUnits, toUnits, f, value);
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| 180 | }
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[2768] | 181 |
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[4068] | 182 | public static PointF Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, PointF value) {
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| 183 | float f1 = screenDpiX;
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| 184 | float f2 = screenDpiY;
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| 185 | float f3 = Convert(fromUnits, toUnits, f1, value.X);
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| 186 | float f4 = Convert(fromUnits, toUnits, f2, value.Y);
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| 187 | return new PointF(f3, f4);
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| 188 | }
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[2768] | 189 |
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[4068] | 190 | public static PointF Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, Graphics grfx, PointF value) {
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| 191 | float f1 = screenDpiX;
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| 192 | float f2 = screenDpiY;
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| 193 | if (grfx != null) {
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| 194 | f1 = grfx.DpiX;
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| 195 | f2 = grfx.DpiY;
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| 196 | }
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| 197 | float f3 = Convert(fromUnits, toUnits, f1, value.X);
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| 198 | float f4 = Convert(fromUnits, toUnits, f2, value.Y);
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| 199 | return new PointF(f3, f4);
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| 200 | }
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[2768] | 201 |
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[4068] | 202 | public static PointF Convert(GraphicsUnit fromUnits, float fromScale, GraphicsUnit toUnits, float toScale, Graphics grfx, PointF value) {
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| 203 | float f1 = screenDpiX;
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| 204 | float f2 = screenDpiY;
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| 205 | if (grfx != null) {
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| 206 | f1 = grfx.DpiX;
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| 207 | f2 = grfx.DpiY;
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| 208 | }
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| 209 | float f3 = Convert(fromUnits, fromScale, toUnits, toScale, f1, value.X);
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| 210 | float f4 = Convert(fromUnits, fromScale, toUnits, toScale, f2, value.Y);
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| 211 | return new PointF(f3, f4);
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| 212 | }
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[2768] | 213 |
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[4068] | 214 | public static PointF Convert(MeasurementsUnit fromUnits, MeasurementsUnit toUnits, Graphics grfx, PointF value) {
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| 215 | float f1 = screenDpiX;
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| 216 | float f2 = screenDpiY;
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| 217 | if (grfx != null) {
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| 218 | f1 = grfx.DpiX;
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| 219 | f2 = grfx.DpiY;
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| 220 | }
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| 221 | float f3 = Convert(fromUnits, toUnits, f1, value.X);
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| 222 | float f4 = Convert(fromUnits, toUnits, f2, value.Y);
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| 223 | return new PointF(f3, f4);
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| 224 | }
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[2768] | 225 |
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[4068] | 226 | public static PointF Convert(GraphicsUnit fromUnits, float fromScale, MeasurementsUnit toUnits, Graphics grfx, PointF value) {
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| 227 | float f1 = screenDpiX;
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| 228 | float f2 = screenDpiY;
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| 229 | if (grfx != null) {
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| 230 | f1 = grfx.DpiX;
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| 231 | f2 = grfx.DpiY;
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| 232 | }
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| 233 | float f3 = Convert(fromUnits, fromScale, toUnits, f1, value.X);
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| 234 | float f4 = Convert(fromUnits, fromScale, toUnits, f2, value.Y);
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| 235 | return new PointF(f3, f4);
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| 236 | }
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[2768] | 237 |
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[4068] | 238 | public static PointF Convert(MeasurementsUnit fromUnits, GraphicsUnit toUnits, float toScale, Graphics grfx, PointF value) {
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| 239 | float f1 = screenDpiX;
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| 240 | float f2 = screenDpiY;
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| 241 | if (grfx != null) {
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| 242 | f1 = grfx.DpiX;
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| 243 | f2 = grfx.DpiY;
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| 244 | }
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| 245 | float f3 = Convert(fromUnits, toUnits, toScale, f1, value.X);
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| 246 | float f4 = Convert(fromUnits, toUnits, toScale, f2, value.Y);
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| 247 | return new PointF(f3, f4);
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| 248 | }
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[2768] | 249 |
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[4068] | 250 | public static SizeF Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, SizeF value) {
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| 251 | float f1 = screenDpiX;
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| 252 | float f2 = screenDpiY;
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| 253 | float f3 = Convert(fromUnits, toUnits, f1, value.Width);
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| 254 | float f4 = Convert(fromUnits, toUnits, f2, value.Height);
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| 255 | return new SizeF(f3, f4);
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| 256 | }
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[2768] | 257 |
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[4068] | 258 | public static SizeF Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, Graphics grfx, SizeF value) {
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| 259 | float f1 = screenDpiX;
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| 260 | float f2 = screenDpiY;
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| 261 | if (grfx != null) {
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| 262 | f1 = grfx.DpiX;
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| 263 | f2 = grfx.DpiY;
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| 264 | }
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| 265 | float f3 = Convert(fromUnits, toUnits, f1, value.Width);
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| 266 | float f4 = Convert(fromUnits, toUnits, f2, value.Height);
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| 267 | return new SizeF(f3, f4);
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| 268 | }
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[2768] | 269 |
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[4068] | 270 | public static SizeF Convert(GraphicsUnit fromUnits, float fromScale, GraphicsUnit toUnits, float toScale, Graphics grfx, SizeF value) {
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| 271 | float f1 = screenDpiX;
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| 272 | float f2 = screenDpiY;
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| 273 | if (grfx != null) {
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| 274 | f1 = grfx.DpiX;
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| 275 | f2 = grfx.DpiY;
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| 276 | }
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| 277 | float f3 = Convert(fromUnits, fromScale, toUnits, toScale, f1, value.Width);
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| 278 | float f4 = Convert(fromUnits, fromScale, toUnits, toScale, f2, value.Height);
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| 279 | return new SizeF(f3, f4);
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| 280 | }
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[2768] | 281 |
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[4068] | 282 | public static RectangleF Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, RectangleF value) {
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| 283 | float f1 = screenDpiX;
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| 284 | float f2 = screenDpiY;
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| 285 | float f3 = Convert(fromUnits, toUnits, f1, value.X);
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| 286 | float f4 = Convert(fromUnits, toUnits, f2, value.Y);
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| 287 | float f5 = Convert(fromUnits, toUnits, f1, value.Width);
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| 288 | float f6 = Convert(fromUnits, toUnits, f2, value.Height);
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| 289 | return new RectangleF(f3, f4, f5, f6);
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| 290 | }
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[2768] | 291 |
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[4068] | 292 | public static RectangleF Convert(GraphicsUnit fromUnits, GraphicsUnit toUnits, Graphics grfx, RectangleF value) {
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| 293 | float f1 = screenDpiX;
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| 294 | float f2 = screenDpiY;
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| 295 | if (grfx != null) {
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| 296 | f1 = grfx.DpiX;
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| 297 | f2 = grfx.DpiY;
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| 298 | }
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| 299 | float f3 = Convert(fromUnits, toUnits, f1, value.X);
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| 300 | float f4 = Convert(fromUnits, toUnits, f2, value.Y);
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| 301 | float f5 = Convert(fromUnits, toUnits, f1, value.Width);
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| 302 | float f6 = Convert(fromUnits, toUnits, f2, value.Height);
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| 303 | return new RectangleF(f3, f4, f5, f6);
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| 304 | }
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[2768] | 305 |
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[4068] | 306 | public static void MeasurementsUnitToGraphicsUnit(MeasurementsUnit unitMeasure, out GraphicsUnit grfxUnit, out float grfxScale) {
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| 307 | switch (unitMeasure) {
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| 308 | case MeasurementsUnit.SixteenthInches:
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| 309 | grfxUnit = GraphicsUnit.Inch;
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| 310 | grfxScale = 6.25e-002F;
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| 311 | return;
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[2768] | 312 |
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[4068] | 313 | case MeasurementsUnit.EighthInches:
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| 314 | grfxUnit = GraphicsUnit.Inch;
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| 315 | grfxScale = 0.125F;
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| 316 | return;
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[2768] | 317 |
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[4068] | 318 | case MeasurementsUnit.QuarterInches:
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| 319 | grfxUnit = GraphicsUnit.Inch;
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| 320 | grfxScale = 0.25F;
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| 321 | return;
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[2768] | 322 |
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[4068] | 323 | case MeasurementsUnit.HalfInches:
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| 324 | grfxUnit = GraphicsUnit.Inch;
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| 325 | grfxScale = 0.5F;
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| 326 | return;
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[2768] | 327 |
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[4068] | 328 | case MeasurementsUnit.Inches:
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| 329 | grfxUnit = GraphicsUnit.Inch;
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| 330 | grfxScale = 1.0F;
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| 331 | return;
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[2768] | 332 |
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[4068] | 333 | case MeasurementsUnit.Feet:
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| 334 | grfxUnit = GraphicsUnit.Inch;
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| 335 | grfxScale = 12.0F;
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| 336 | return;
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[2768] | 337 |
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[4068] | 338 | case MeasurementsUnit.Yards:
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| 339 | grfxUnit = GraphicsUnit.Inch;
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| 340 | grfxScale = 36.0F;
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| 341 | return;
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[2768] | 342 |
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[4068] | 343 | case MeasurementsUnit.Miles:
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| 344 | grfxUnit = GraphicsUnit.Inch;
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| 345 | grfxScale = 63360.0F;
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| 346 | return;
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[2768] | 347 |
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[4068] | 348 | case MeasurementsUnit.Millimeters:
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| 349 | grfxUnit = GraphicsUnit.Millimeter;
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| 350 | grfxScale = 1.0F;
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| 351 | return;
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[2768] | 352 |
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[4068] | 353 | case MeasurementsUnit.Centimeters:
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| 354 | grfxUnit = GraphicsUnit.Millimeter;
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| 355 | grfxScale = 10.0F;
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| 356 | return;
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[2768] | 357 |
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[4068] | 358 | case MeasurementsUnit.Meters:
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| 359 | grfxUnit = GraphicsUnit.Millimeter;
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| 360 | grfxScale = 1000.0F;
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| 361 | return;
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[2768] | 362 |
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[4068] | 363 | case MeasurementsUnit.Kilometers:
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| 364 | grfxUnit = GraphicsUnit.Millimeter;
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| 365 | grfxScale = 1000000.0F;
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| 366 | return;
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[2768] | 367 |
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[4068] | 368 | case MeasurementsUnit.Points:
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| 369 | grfxUnit = GraphicsUnit.Point;
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| 370 | grfxScale = 1.0F;
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| 371 | return;
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[2768] | 372 |
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[4068] | 373 | default:
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| 374 | grfxUnit = GraphicsUnit.Pixel;
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| 375 | grfxScale = 1.0F;
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| 376 | return;
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| 377 | }
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| 378 | }
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| 379 |
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| 380 | public static MeasurementSystem GetUnitsSystem(MeasurementsUnit units) {
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| 381 | MeasurementSystem measurementSystem = MeasurementSystem.English;
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| 382 | MeasurementsUnit[] measurementsUnits = metricUnits;
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| 383 | for (int i = 0; i < (int)measurementsUnits.Length; i++) {
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| 384 | if (measurementsUnits[i] == units) {
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| 385 | measurementSystem = MeasurementSystem.Metric;
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| 386 | break;
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[2768] | 387 | }
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[4068] | 388 | }
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| 389 | return measurementSystem;
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| 390 | }
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[2768] | 391 |
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[4068] | 392 | public static bool GetLargerUnits(MeasurementsUnit units, out MeasurementsUnit largerUnits) {
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| 393 | bool flag = false;
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| 394 | largerUnits = units;
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| 395 | for (int i = 0; !flag && i < (int)englishUnits.Length - 1; i++) {
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| 396 | if (englishUnits[i] == units) {
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| 397 | largerUnits = englishUnits[i + 1];
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| 398 | flag = true;
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[2768] | 399 | }
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[4068] | 400 | }
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| 401 | for (int j = 0; !flag && j < (int)metricUnits.Length - 1; j++) {
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| 402 | if (metricUnits[j] == units) {
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| 403 | largerUnits = englishUnits[j + 1];
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| 404 | }
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| 405 | }
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| 406 | return flag;
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| 407 | }
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[2768] | 408 |
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[4068] | 409 | public static bool GetSmallerUnits(MeasurementsUnit units, out MeasurementsUnit smallerUnits) {
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| 410 | bool flag = false;
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| 411 | smallerUnits = units;
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| 412 | for (int i = (int)englishUnits.Length - 1; !flag && i > 0; i--) {
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| 413 | if (englishUnits[i] == units) {
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| 414 | smallerUnits = englishUnits[i - 1];
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| 415 | flag = true;
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[2768] | 416 | }
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[4068] | 417 | }
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| 418 | for (int j = (int)metricUnits.Length - 1; !flag && j > 0; j--) {
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| 419 | if (metricUnits[j] == units) {
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| 420 | smallerUnits = metricUnits[j - 1];
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| 421 | flag = true;
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| 422 | }
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| 423 | }
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| 424 | return flag;
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| 425 | }
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[2768] | 426 |
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[4068] | 427 | public static MeasurementsUnit GetSystemUnits(MeasurementSystem measureSys, int unitOrdinal) {
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| 428 | MeasurementsUnit measurementsUnit;
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[2768] | 429 |
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[4068] | 430 | //if (measureSys == null)
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| 431 | //{
|
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| 432 | // if (unitOrdinal < 0 || unitOrdinal >= (int)englishUnits.Length)
|
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| 433 | // {
|
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| 434 | // throw new InconsistencyException("Oops");
|
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| 435 | // }
|
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| 436 | // measurementsUnit = englishUnits[unitOrdinal];
|
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| 437 | //}
|
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| 438 | //else
|
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| 439 | {
|
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| 440 | if (measureSys != MeasurementSystem.Metric) {
|
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| 441 | throw new InconsistencyException("Oops");
|
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[2768] | 442 | }
|
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[4068] | 443 | if (unitOrdinal < 0 || unitOrdinal >= (int)metricUnits.Length) {
|
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| 444 | throw new InconsistencyException("Oops");
|
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[2768] | 445 | }
|
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[4068] | 446 | measurementsUnit = metricUnits[unitOrdinal];
|
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| 447 | }
|
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| 448 | return measurementsUnit;
|
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[2768] | 449 | }
|
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| 450 |
|
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[4068] | 451 | static Measurements() {
|
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| 452 | MeasurementsUnit[] measurementsUnits = new MeasurementsUnit[8];
|
---|
| 453 | measurementsUnits[1] = MeasurementsUnit.EighthInches;
|
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| 454 | measurementsUnits[2] = MeasurementsUnit.QuarterInches;
|
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| 455 | measurementsUnits[3] = MeasurementsUnit.HalfInches;
|
---|
| 456 | measurementsUnits[4] = MeasurementsUnit.Inches;
|
---|
| 457 | measurementsUnits[5] = MeasurementsUnit.Feet;
|
---|
| 458 | measurementsUnits[6] = MeasurementsUnit.Yards;
|
---|
| 459 | measurementsUnits[7] = MeasurementsUnit.Miles;
|
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| 460 | englishUnits = measurementsUnits;
|
---|
| 461 | measurementsUnits = new MeasurementsUnit[] { MeasurementsUnit.Millimeters, MeasurementsUnit.Centimeters, MeasurementsUnit.Meters, MeasurementsUnit.Kilometers };
|
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| 462 | metricUnits = measurementsUnits;
|
---|
| 463 | }
|
---|
| 464 | }
|
---|
| 465 |
|
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[2768] | 466 | }
|
---|