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6502bench/SourceGen/WpfGui/EditLongComment.xaml.cs
2019-07-20 13:28:37 -07:00

178 lines
5.7 KiB
C#

/*
* Copyright 2019 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
namespace SourceGen.WpfGui {
/// <summary>
/// Long comment editor.
/// </summary>
public partial class EditLongComment : Window, INotifyPropertyChanged {
/// <summary>
/// Get or set the multi-line comment object. On exit, will be set to null if
/// the user wants to delete the comment.
/// </summary>
public MultiLineComment LongComment { get; set; }
private Asm65.Formatter mFormatter;
public bool RenderInBox {
get { return mRenderInBox; }
set {
mRenderInBox = value;
OnPropertyChanged();
FormatInput();
}
}
private bool mRenderInBox;
/// <summary>
/// Text input by user. This is bound to the input TextBox.
/// </summary>
public string UserInput {
get { return mUserInput; }
set {
mUserInput = value;
OnPropertyChanged();
FormatInput();
}
}
private string mUserInput;
/// <summary>
/// Generated text output. This is bound to the output TextBox.
/// </summary>
public string TextOutput {
get { return mTextOutput; }
set {
mTextOutput = value;
OnPropertyChanged();
}
}
private string mTextOutput;
// INotifyPropertyChanged implementation
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged([CallerMemberName] string propertyName = "") {
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
/// <summary>
/// ItemsSource for line width combo box.
/// </summary>
public int[] LineWidthItems { get; } = new int[] { 30, 40, 64, 80 };
public EditLongComment(Window owner, Asm65.Formatter formatter) {
InitializeComponent();
Owner = owner;
DataContext = this;
mFormatter = formatter;
LongComment = new MultiLineComment(string.Empty);
}
private void Window_Loaded(object sender, RoutedEventArgs e) {
Debug.Assert(LongComment != null);
UserInput = LongComment.Text;
RenderInBox = LongComment.BoxMode;
// Try to find a match for the max width specified in the MLC.
maxWidthComboBox.SelectedIndex = 0;
for (int i = 0; i < maxWidthComboBox.Items.Count; i++) {
if ((int)maxWidthComboBox.Items[i] == LongComment.MaxWidth) {
maxWidthComboBox.SelectedIndex = i;
break;
}
}
FormatInput();
entryTextBox.Focus();
}
private void OkButton_Click(object sender, RoutedEventArgs e) {
DialogResult = true;
}
// Handle Ctrl+Enter as a way to close the dialog, since plain Enter just
// moves to a new line.
private void CloseCmd_Executed(object sender, ExecutedRoutedEventArgs e) {
DialogResult = true;
}
private void Window_Closing(object sender, CancelEventArgs e) {
if (string.IsNullOrEmpty(UserInput)) {
LongComment = null;
} else {
LongComment = CreateMLC();
}
}
private void MaxWidthComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e) {
FormatInput();
}
/// <summary>
/// Formats entryTextBox.Text into displayTextBox.Text.
/// </summary>
private void FormatInput() {
if (!IsLoaded) {
return;
}
MultiLineComment mlc = CreateMLC();
if (mlc == null) {
return;
}
List<string> lines = mlc.FormatText(mFormatter, string.Empty);
StringBuilder sb = new StringBuilder(UserInput.Length + lines.Count * 2);
//sb.AppendFormat("### got {0} lines\r\n", lines.Count);
bool first = true;
foreach (string line in lines) {
if (first) {
first = false;
} else {
sb.Append("\r\n");
}
sb.Append(line);
}
TextOutput = sb.ToString();
}
/// <summary>
/// Creates a MultiLineComment from the current state of the dialog.
/// </summary>
/// <returns>New MultiLineComment object. Returns null if the dialog is still
/// in the process of initializing.</returns>
private MultiLineComment CreateMLC() {
if (maxWidthComboBox.SelectedItem == null) {
return null; // still initializing
}
return new MultiLineComment(UserInput, RenderInBox,
(int)maxWidthComboBox.SelectedItem);
}
}
}