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While I was at it, I noticed that the ASCII chart and hex dump viewer windows were always in front of the main app window. It looks like child windows are always in front. The easy fix is to not set an owner. This causes a new problem: the windows don't get closed automatically when the parent window closes, and the app won't exit until all windows are closed. So we now explicitly close the hex dump and ASCII chart windows when the main window is closed, and we now keep track of all the external-file hex dump windows. (It always sort of bothered me that we were creating hex dump windows and not keeping track of them. Itch has now been scratched.) Also, changed the ascch-mode setting to be an enum rather than an integer. Renamed the setting to ascch-mode1.
145 lines
4.7 KiB
C#
145 lines
4.7 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.Diagnostics;
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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 SourceGenWPF.Tools.WpfGui {
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/// <summary>
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/// ASCII chart.
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/// </summary>
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public partial class AsciiChart : Window {
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public enum ChartMode {
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Unknown = 0,
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Standard,
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High
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};
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public class ChartModeItem {
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public string Name { get; private set; }
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public ChartMode Mode { get; private set; }
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public ChartModeItem(string name, ChartMode mode) {
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Name = name;
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Mode = mode;
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}
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}
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public ChartModeItem[] ChartModeItems { get; private set; }
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public AsciiChart(Window owner) {
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InitializeComponent();
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Owner = owner;
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DataContext = this;
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ChartModeItems = new ChartModeItem[] {
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new ChartModeItem((string)FindResource("str_Standard"), ChartMode.Standard),
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new ChartModeItem((string)FindResource("str_High"), ChartMode.High),
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};
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}
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public void Window_Loaded(object sender, RoutedEventArgs e) {
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// Restore chart mode setting.
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ChartMode mode = (ChartMode)AppSettings.Global.GetEnum(
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AppSettings.ASCCH_MODE, typeof(ChartMode), (int)ChartMode.Standard);
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int index = 0;
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for (int i = 0; i < ChartModeItems.Length; i++) {
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if (ChartModeItems[i].Mode == mode) {
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index = i;
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break;
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}
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}
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chartModeComboBox.SelectedIndex = index;
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// should call UpdateControls via SelectionChanged
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}
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// Catch ESC key.
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private void Window_KeyEventHandler(object sender, KeyEventArgs e) {
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if (e.Key == Key.Escape) {
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Close();
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}
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}
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private void ChartModeComboBox_SelectionChanged(object sender,
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SelectionChangedEventArgs e) {
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UpdateControls();
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}
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private void UpdateControls() {
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ChartModeItem item = (ChartModeItem)chartModeComboBox.SelectedItem;
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if (item == null) {
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// initializing
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return;
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}
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AppSettings.Global.SetEnum(AppSettings.ASCCH_MODE, typeof(ChartMode), (int)item.Mode);
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//
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// Draw box contents.
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//
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const string hdr = "Dec Hex Chr";
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const string div = " | ";
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const string eol = "\r\n";
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StringBuilder sb = new StringBuilder(
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(hdr.Length * 4 + div.Length * 3 + eol.Length) * 32);
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sb.Append(hdr);
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sb.Append(div);
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sb.Append(hdr);
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sb.Append(div);
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sb.Append(hdr);
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sb.Append(div);
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sb.Append(hdr);
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sb.Append(eol);
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for (int i = 0; i < 32; i++) {
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DrawEntry(item.Mode, i, sb);
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sb.Append(div);
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DrawEntry(item.Mode, i + 32, sb);
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sb.Append(div);
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DrawEntry(item.Mode, i + 64, sb);
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sb.Append(div);
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DrawEntry(item.Mode, i + 96, sb);
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sb.Append(eol);
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}
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chartTextBox.Text = sb.ToString();
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chartTextBox.SelectionStart = sb.Length;
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chartTextBox.SelectionLength = 0;
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}
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private void DrawEntry(ChartMode mode, int val, StringBuilder sb) {
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// Format is: Dec Hex Chr
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int modVal = (mode == ChartMode.High) ? val | 0x80 : val;
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sb.AppendFormat("{0,3:D} {1,3:X2} ", modVal, modVal);
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if (val < 0x20) {
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sb.Append('^');
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sb.Append((char)(val + 0x40));
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sb.Append(' ');
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} else if (val == 0x20) {
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sb.Append("' '");
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} else if (val < 0x7f) {
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sb.Append(' ');
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sb.Append((char)val);
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sb.Append(' ');
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} else {
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sb.Append("DEL");
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}
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}
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}
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}
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