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c78f1c945e
It's really handy for certain types of programs, but it's a distraction in many others. I find myself turning it off for most things. Some changes will be needed in the tutorial, which makes use of the feature. (The "odds & ends" section discusses it in detail.) I'm putting that off until other changes are in.
224 lines
7.9 KiB
C#
224 lines
7.9 KiB
C#
/*
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* Copyright 2019 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Diagnostics;
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using System.Runtime.CompilerServices;
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using System.Text;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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namespace SourceGen.WpfGui {
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/// <summary>
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/// Long comment editor.
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/// </summary>
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public partial class EditLongComment : Window, INotifyPropertyChanged {
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// INotifyPropertyChanged implementation
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public event PropertyChangedEventHandler PropertyChanged;
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private void OnPropertyChanged([CallerMemberName] string propertyName = "") {
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PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
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}
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/// <summary>
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/// Get or set the multi-line comment object. On exit, will be set to null if
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/// the user wants to delete the comment.
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/// </summary>
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public MultiLineComment LongComment { get; set; }
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private Asm65.Formatter mFormatter;
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/// <summary>
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/// Checkbox state for fancy-mode toggle.
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/// </summary>
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public bool IsFancyEnabled {
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get { return mIsFancyEnabled; }
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set {
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mIsFancyEnabled = value;
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OnPropertyChanged();
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FormatInput();
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}
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}
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private bool mIsFancyEnabled;
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/// <summary>
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/// Checkbox state for basic-mode boxing.
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/// </summary>
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public bool RenderInBox {
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get { return mRenderInBox; }
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set {
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mRenderInBox = value;
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OnPropertyChanged();
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FormatInput();
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}
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}
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private bool mRenderInBox;
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/// <summary>
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/// Text input by user. This is bound to the input TextBox.
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/// </summary>
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public string UserInput {
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get { return mUserInput; }
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set {
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mUserInput = value;
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OnPropertyChanged();
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FormatInput();
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}
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}
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private string mUserInput;
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/// <summary>
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/// Generated text output. This is bound to the output TextBox, for display.
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/// </summary>
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public string TextOutput {
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get { return mTextOutput; }
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set {
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mTextOutput = value;
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OnPropertyChanged();
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}
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}
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private string mTextOutput;
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/// <summary>
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/// ItemsSource for line width combo box.
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/// </summary>
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public int[] LineWidthItems { get; } = new int[] { 30, 40, 64, 80 };
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/// <summary>
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/// Dialog constructor. Pass in the current formatter object.
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/// </summary>
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public EditLongComment(Window owner, Asm65.Formatter formatter) {
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InitializeComponent();
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Owner = owner;
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DataContext = this;
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mFormatter = formatter;
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LongComment = new MultiLineComment(true);
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}
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/// <summary>
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/// Configures dialog controls after the window finishes loading.
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/// </summary>
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private void Window_Loaded(object sender, RoutedEventArgs e) {
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Debug.Assert(LongComment != null);
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UserInput = LongComment.Text;
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IsFancyEnabled = LongComment.IsFancy;
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RenderInBox = LongComment.BoxMode;
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// Try to find a match for the max width specified in the MLC.
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maxWidthComboBox.SelectedIndex = 0;
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for (int i = 0; i < maxWidthComboBox.Items.Count; i++) {
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if ((int)maxWidthComboBox.Items[i] == LongComment.MaxWidth) {
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maxWidthComboBox.SelectedIndex = i;
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break;
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}
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}
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FormatInput();
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entryTextBox.Focus();
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}
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private void OkButton_Click(object sender, RoutedEventArgs e) {
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DialogResult = true;
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}
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// Handle Ctrl+Enter as a way to close the dialog, since plain Enter just
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// moves to a new line.
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private void CloseCmd_Executed(object sender, ExecutedRoutedEventArgs e) {
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DialogResult = true;
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}
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private void Window_Closing(object sender, CancelEventArgs e) {
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if (string.IsNullOrEmpty(UserInput)) {
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LongComment = null;
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} else {
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LongComment = CreateMLC();
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}
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}
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private void MaxWidthComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e) {
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FormatInput();
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}
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/// <summary>
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/// Formats entryTextBox.Text into displayTextBox.Text. This is done every time the
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/// user makes a change to the text entry box.
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/// </summary>
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private void FormatInput() {
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if (!IsLoaded) {
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return;
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}
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MultiLineComment mlc = CreateMLC();
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if (mlc == null) {
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return;
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}
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List<string> lines = mlc.FormatText(mFormatter, string.Empty);
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StringBuilder sb = new StringBuilder(UserInput.Length + lines.Count * 2);
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//sb.AppendFormat("### got {0} lines\r\n", lines.Count);
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bool first = true;
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foreach (string line in lines) {
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if (first) {
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first = false;
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} else {
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sb.Append("\r\n");
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}
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sb.Append(line);
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}
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TextOutput = sb.ToString();
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}
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/// <summary>
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/// Creates a MultiLineComment from the current state of the dialog.
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/// </summary>
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/// <returns>New MultiLineComment object. Returns null if the dialog is still
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/// in the process of initializing.</returns>
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private MultiLineComment CreateMLC() {
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if (maxWidthComboBox.SelectedItem == null) {
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return null; // still initializing
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}
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return new MultiLineComment(UserInput, IsFancyEnabled, RenderInBox,
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(int)maxWidthComboBox.SelectedItem);
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}
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private const string HELP_TEXT =
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"Fancy formatting tags:\r\n" +
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" [width=nn] sets the width to the specified value; '*' sets to default (80).\r\n" +
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" [br] breaks up the output with a totally blank line.\r\n" +
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" [box]...[/box] puts text in a box, using the comment char for the frame.\r\n" +
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" [box char='#']...[/box] puts text in a box, using the specified char.\r\n" +
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" [hr] outputs a horizontal line of characters, using the comment char.\r\n" +
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" [hr char='-'] outputs a horizontal rule, using the specified char.\r\n" +
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" [url]https://example.com/[/url] outputs a URL.\r\n" +
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" [url=https://example.com/]link text[/url] outputs a URL with separate link text.\r\n" +
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"\r\n" +
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"[width=nn] and [br] are not allowed in boxes, but [hr] and [url] are.\r\n" +
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"\r\n" +
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"If fancy mode is disabled, the Line Width and Render In Box controls are enabled,\r\n" +
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"and will be used to format the text. Formatting tags are not recognized.\r\n";
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private void FormatHelp_Click(object sender, RoutedEventArgs e) {
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Tools.WpfGui.ShowText dialog = new Tools.WpfGui.ShowText(this, HELP_TEXT);
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dialog.Title = "Format Help";
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dialog.ShowDialog();
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}
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}
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}
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