140 lines
4.2 KiB
C#
140 lines
4.2 KiB
C#
//
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// System.Drawing.Printing.PrinterUnitConvert.cs
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//
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// Authors:
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// Martin Willemoes Hansen (mwh@sysrq.dk)
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// Herve Poussineau (hpoussineau@fr.st)
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//
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// (C) 2003 Martin Willemoes Hansen
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//
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//
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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namespace System.Drawing.Printing
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{
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public sealed class PrinterUnitConvert
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{
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private PrinterUnitConvert ()
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{
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}
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public static double Convert (double value,
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PrinterUnit fromUnit,
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PrinterUnit toUnit)
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{
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switch (fromUnit)
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{
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case PrinterUnit.Display:
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switch (toUnit)
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{
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case PrinterUnit.Display: return value;
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case PrinterUnit.ThousandthsOfAnInch: return value * 10;
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case PrinterUnit.HundredthsOfAMillimeter: return value * 25.4;
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case PrinterUnit.TenthsOfAMillimeter: return value * 2.54;
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}
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break;
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case PrinterUnit.ThousandthsOfAnInch:
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switch (toUnit)
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{
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case PrinterUnit.Display: return value / 10;
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case PrinterUnit.ThousandthsOfAnInch: return value;
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case PrinterUnit.HundredthsOfAMillimeter: return value * 2.54;
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case PrinterUnit.TenthsOfAMillimeter: return value * 0.254;
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}
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break;
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case PrinterUnit.HundredthsOfAMillimeter:
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switch (toUnit)
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{
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case PrinterUnit.Display: return value / 25.4;
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case PrinterUnit.ThousandthsOfAnInch: return value / 2.54;
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case PrinterUnit.HundredthsOfAMillimeter: return value;
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case PrinterUnit.TenthsOfAMillimeter: return value / 10;
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}
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break;
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case PrinterUnit.TenthsOfAMillimeter:
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switch (toUnit)
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{
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case PrinterUnit.Display: return value / 2.54;
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case PrinterUnit.ThousandthsOfAnInch: return value / 0.254;
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case PrinterUnit.HundredthsOfAMillimeter: return value * 10;
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case PrinterUnit.TenthsOfAMillimeter: return value;
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}
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break;
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}
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// should never happen
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throw new NotImplementedException();
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}
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public static int Convert (int value,
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PrinterUnit fromUnit,
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PrinterUnit toUnit)
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{
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double rslt;
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rslt = Convert ((double) value, fromUnit, toUnit);
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return (int) Math.Round (rslt);
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}
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public static Margins Convert (Margins value,
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PrinterUnit fromUnit,
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PrinterUnit toUnit)
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{
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return new Margins(
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Convert(value.Left, fromUnit, toUnit),
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Convert(value.Right, fromUnit, toUnit),
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Convert(value.Top, fromUnit, toUnit),
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Convert(value.Bottom, fromUnit, toUnit));
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}
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public static Point Convert (Point value,
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PrinterUnit fromUnit,
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PrinterUnit toUnit)
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{
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return new Point(
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Convert(value.X, fromUnit, toUnit),
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Convert(value.Y, fromUnit, toUnit));
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}
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public static Rectangle Convert (Rectangle value,
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PrinterUnit fromUnit,
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PrinterUnit toUnit)
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{
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return new Rectangle(
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Convert(value.X, fromUnit, toUnit),
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Convert(value.Y, fromUnit, toUnit),
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Convert(value.Width, fromUnit, toUnit),
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Convert(value.Height, fromUnit, toUnit));
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}
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public static Size Convert (Size value,
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PrinterUnit fromUnit,
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PrinterUnit toUnit)
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{
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return new Size(
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Convert(value.Width, fromUnit, toUnit),
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Convert(value.Height, fromUnit, toUnit));
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}
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}
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}
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