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6502bench/SourceGen/Tools/WpfGui/AsciiChart.xaml.cs

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/*
* 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.Diagnostics;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
namespace SourceGen.Tools.WpfGui {
/// <summary>
/// ASCII chart.
/// </summary>
public partial class AsciiChart : Window {
public enum ChartMode {
Unknown = 0,
Standard,
High
};
public class ChartModeItem {
public string Name { get; private set; }
public ChartMode Mode { get; private set; }
public ChartModeItem(string name, ChartMode mode) {
Name = name;
Mode = mode;
}
}
public ChartModeItem[] ChartModeItems { get; private set; }
public AsciiChart(Window owner) {
InitializeComponent();
Owner = owner;
DataContext = this;
ChartModeItems = new ChartModeItem[] {
new ChartModeItem((string)FindResource("str_Standard"), ChartMode.Standard),
new ChartModeItem((string)FindResource("str_High"), ChartMode.High),
};
}
public void Window_Loaded(object sender, RoutedEventArgs e) {
// Restore chart mode setting.
ChartMode mode = (ChartMode)AppSettings.Global.GetEnum(
AppSettings.ASCCH_MODE, typeof(ChartMode), (int)ChartMode.Standard);
int index = 0;
for (int i = 0; i < ChartModeItems.Length; i++) {
if (ChartModeItems[i].Mode == mode) {
index = i;
break;
}
}
chartModeComboBox.SelectedIndex = index;
// should call UpdateControls via SelectionChanged
}
// Catch ESC key.
private void Window_KeyEventHandler(object sender, KeyEventArgs e) {
if (e.Key == Key.Escape) {
Close();
}
}
private void ChartModeComboBox_SelectionChanged(object sender,
SelectionChangedEventArgs e) {
UpdateControls();
}
private void UpdateControls() {
ChartModeItem item = (ChartModeItem)chartModeComboBox.SelectedItem;
if (item == null) {
// initializing
return;
}
AppSettings.Global.SetEnum(AppSettings.ASCCH_MODE, typeof(ChartMode), (int)item.Mode);
//
// Draw box contents.
//
const string hdr = "Dec Hex Chr";
const string div = " | ";
const string eol = "\r\n";
StringBuilder sb = new StringBuilder(
(hdr.Length * 4 + div.Length * 3 + eol.Length) * 32);
sb.Append(hdr);
sb.Append(div);
sb.Append(hdr);
sb.Append(div);
sb.Append(hdr);
sb.Append(div);
sb.Append(hdr);
for (int i = 0; i < 32; i++) {
sb.Append(eol);
DrawEntry(item.Mode, i, sb);
sb.Append(div);
DrawEntry(item.Mode, i + 32, sb);
sb.Append(div);
DrawEntry(item.Mode, i + 64, sb);
sb.Append(div);
DrawEntry(item.Mode, i + 96, sb);
}
sb.Append(eol); // easier to read the '_' at the bottom
chartTextBox.Text = sb.ToString();
chartTextBox.SelectionStart = sb.Length;
chartTextBox.SelectionLength = 0;
}
private void DrawEntry(ChartMode mode, int val, StringBuilder sb) {
// Format is: Dec Hex Chr
int modVal = (mode == ChartMode.High) ? val | 0x80 : val;
sb.AppendFormat("{0,3:D} {1,3:X2} ", modVal, modVal);
if (val < 0x20) {
sb.Append('^');
sb.Append((char)(val + 0x40));
sb.Append(' ');
} else if (val == 0x20) {
sb.Append("' '");
} else if (val < 0x7f) {
sb.Append(' ');
sb.Append((char)val);
sb.Append(' ');
} else {
sb.Append("DEL");
}
}
}
}