Extract settings field generation into individual classes

SlicerConfiguration/UIFields/IntOrMmField.cs

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+/*
+Copyright (c) 2017, Lars Brubaker, John Lewin
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are those
+of the authors and should not be interpreted as representing official policies,
+either expressed or implied, of the FreeBSD Project.
+*/
+
+using System;
+using MatterHackers.Agg.UI;
+
+namespace MatterHackers.MatterControl.SlicerConfiguration
+{
+	public class IntOrMmField : ISettingsField
+	{
+		private MHTextEditWidget editWidget;
+
+		public Action UpdateStyle { get; set; }
+
+		public string Value { get; set; }
+
+		public GuiWidget Create(SettingsContext settingsContext, SliceSettingData settingData, int tabIndex)
+		{
+			editWidget = new MHTextEditWidget(this.Value, pixelWidth: DoubleField.DoubleEditWidth - 2, tabIndex: tabIndex)
+			{
+				ToolTipText = settingData.HelpText,
+				SelectAllOnFocus = true
+			};
+
+			string startingText = editWidget.Text;
+			editWidget.ActualTextEditWidget.EditComplete += (sender, e) =>
+			{
+				TextEditWidget textEditWidget = (TextEditWidget)sender;
+				// only validate when we lose focus
+				if (!textEditWidget.ContainsFocus)
+				{
+					string text = textEditWidget.Text;
+					text = text.Trim();
+					bool isMm = text.Contains("mm");
+					if (isMm)
+					{
+						text = text.Substring(0, text.IndexOf("mm"));
+					}
+					double result;
+					double.TryParse(text, out result);
+					text = result.ToString();
+					if (isMm)
+					{
+						text += "mm";
+					}
+					else
+					{
+						result = (int)result;
+						text = result.ToString();
+					}
+					textEditWidget.Text = text;
+					startingText = editWidget.Text;
+				}
+
+				settingsContext.SetValue(settingData.SlicerConfigName, textEditWidget.Text);
+				this.UpdateStyle();
+
+				// make sure we are still looking for the final validation before saving.
+				if (textEditWidget.ContainsFocus)
+				{
+					UiThread.RunOnIdle(() =>
+					{
+						string currentText = textEditWidget.Text;
+						int cursorIndex = textEditWidget.InternalTextEditWidget.CharIndexToInsertBefore;
+						textEditWidget.Text = startingText;
+						textEditWidget.InternalTextEditWidget.MarkAsStartingState();
+						textEditWidget.Text = currentText;
+						textEditWidget.InternalTextEditWidget.CharIndexToInsertBefore = cursorIndex;
+					});
+				}
+			};
+
+			editWidget.ActualTextEditWidget.InternalTextEditWidget.AllSelected += (sender, e) =>
+			{
+				// select everything up to the mm (if present)
+				InternalTextEditWidget textEditWidget = (InternalTextEditWidget)sender;
+				int mMIndex = textEditWidget.Text.IndexOf("mm");
+				if (mMIndex != -1)
+				{
+					textEditWidget.SetSelection(0, mMIndex - 1);
+				}
+			};
+
+			if (settingData.QuickMenuSettings.Count > 0)
+			{
+				return SliceSettingsWidget.CreateQuickMenu(settingData, settingsContext, editWidget, editWidget.ActualTextEditWidget.InternalTextEditWidget);
+			}
+			else
+			{
+				return editWidget;
+			}
+		}
+
+		public void OnValueChanged(string text)
+		{
+			editWidget.Text = text;
+		}
+	}
+}