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397 lines
15 KiB
C#
397 lines
15 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.Windows;
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using System.Windows.Controls;
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using System.Windows.Media;
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using Asm65;
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namespace SourceGen.WpfGui {
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/// <summary>
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/// Symbol edit dialog.
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/// </summary>
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public partial class EditDefSymbol : Window, INotifyPropertyChanged {
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/// <summary>
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/// Result; will be set non-null on OK.
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/// </summary>
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public DefSymbol NewSym { get; private set; }
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/// <summary>
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/// Set to true when all fields are valid. Controls whether the OK button is enabled.
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/// </summary>
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public bool IsValid {
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get { return mIsValid; }
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set { mIsValid = value; OnPropertyChanged(); }
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}
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private bool mIsValid;
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public string Label {
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get { return mLabel; }
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set { mLabel = value; OnPropertyChanged(); UpdateControls(); }
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}
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private string mLabel;
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public string Value {
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get { return mValue; }
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set { mValue = value; OnPropertyChanged(); UpdateControls(); }
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}
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private string mValue;
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public string VarWidth {
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get { return mWidth; }
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set { mWidth = value; OnPropertyChanged(); UpdateControls(); }
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}
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private string mWidth;
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public string WidthLimitLabel {
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get { return mWidthLimitLabel; }
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set { mWidthLimitLabel = value; OnPropertyChanged(); }
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}
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private string mWidthLimitLabel;
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public string Comment {
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get { return mComment; }
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set { mComment = value; OnPropertyChanged(); }
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}
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private string mComment;
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public bool IsAddress {
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get { return mIsAddress; }
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set { mIsAddress = value; OnPropertyChanged(); UpdateControls(); }
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}
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private bool mIsAddress;
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public bool IsConstant {
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get { return mIsConstant; }
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set { mIsConstant = value; OnPropertyChanged(); UpdateControls(); }
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}
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private bool mIsConstant;
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public string ConstantLabel {
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get { return mConstantLabel; }
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set { mConstantLabel = value; OnPropertyChanged(); }
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}
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private string mConstantLabel;
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public bool IsReadChecked {
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get { return mIsReadChecked; }
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set { mIsReadChecked = value; OnPropertyChanged(); UpdateControls(); }
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}
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private bool mIsReadChecked;
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public bool IsWriteChecked {
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get { return mIsWriteChecked; }
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set { mIsWriteChecked = value; OnPropertyChanged(); UpdateControls(); }
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}
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private bool mIsWriteChecked;
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public bool ReadOnlyValueAndType {
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get { return mReadOnlyValueAndType; }
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set { mReadOnlyValueAndType = value; OnPropertyChanged(); }
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}
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public bool NotReadOnlyValueAndType {
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get { return !mReadOnlyValueAndType; }
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}
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private bool mReadOnlyValueAndType;
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/// <summary>
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/// Set to true if we should create a Variable rather than a project symbol.
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/// </summary>
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public bool IsVariable {
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get { return mIsVariable; }
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set { mIsVariable = value; OnPropertyChanged(); }
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}
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public bool IsNotVariable {
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get { return !mIsVariable; }
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}
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private bool mIsVariable;
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/// <summary>
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/// Format object to use when formatting addresses and constants.
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/// </summary>
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private Formatter mNumFormatter;
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/// <summary>
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/// Old symbol value. May be null.
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/// </summary>
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private DefSymbol mOldSym;
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/// <summary>
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/// List of existing symbols, for uniqueness check. The list will not be modified.
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/// </summary>
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private SortedList<string, DefSymbol> mDefSymbolList;
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/// <summary>
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/// Full symbol table, for extended uniqueness check.
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/// </summary>
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private SymbolTable mSymbolTable;
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/// <summary>
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/// Set to true if the width value is optional.
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/// </summary>
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private bool mIsWidthOptional;
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private Brush mDefaultLabelColor = SystemColors.WindowTextBrush;
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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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/// Constructor, for editing a project or platform symbol.
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/// </summary>
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public EditDefSymbol(Window owner, Formatter formatter,
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SortedList<string, DefSymbol> defList, DefSymbol defSym,
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SymbolTable symbolTable)
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: this(owner, formatter, defList, defSym, symbolTable, false, false) { }
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/// <summary>
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/// Constructor, for editing a local variable, or editing a project symbol with
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/// the value field locked.
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/// </summary>
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/// <remarks>
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/// TODO(someday): disable the "constant" radio button unless CPU=65816.
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/// </remarks>
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public EditDefSymbol(Window owner, Formatter formatter,
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SortedList<string, DefSymbol> defList, DefSymbol defSym,
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SymbolTable symbolTable, bool isVariable, bool lockValueAndType) {
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InitializeComponent();
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Owner = owner;
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DataContext = this;
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mNumFormatter = formatter;
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mDefSymbolList = defList;
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mOldSym = defSym;
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mSymbolTable = symbolTable;
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IsVariable = isVariable;
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mReadOnlyValueAndType = lockValueAndType;
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Label = Value = VarWidth = Comment = string.Empty;
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int maxWidth;
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if (isVariable) {
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ConstantLabel = (string)FindResource("str_VariableConstant");
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maxWidth = 256;
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} else {
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ConstantLabel = (string)FindResource("str_ProjectConstant");
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maxWidth = 65536;
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}
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mIsWidthOptional = !isVariable;
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string fmt = (string)FindResource("str_WidthLimitFmt");
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WidthLimitLabel = string.Format(fmt, maxWidth);
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}
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private void Window_Loaded(object sender, RoutedEventArgs e) {
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if (mOldSym != null) {
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Label = mOldSym.GenerateDisplayLabel(mNumFormatter);
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Value = mNumFormatter.FormatValueInBase(mOldSym.Value,
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mOldSym.DataDescriptor.NumBase);
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if (mOldSym.HasWidth) {
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VarWidth = mOldSym.DataDescriptor.Length.ToString();
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}
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Comment = mOldSym.Comment;
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if (mOldSym.IsConstant) {
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IsConstant = true;
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} else {
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IsAddress = true;
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}
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if (mOldSym.Direction == DefSymbol.DirectionFlags.Read) {
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IsReadChecked = true;
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} else if (mOldSym.Direction == DefSymbol.DirectionFlags.Write) {
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IsWriteChecked = true;
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} else {
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IsReadChecked = IsWriteChecked = true;
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}
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} else {
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IsAddress = IsReadChecked = IsWriteChecked = true;
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}
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UpdateControls();
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}
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private void Window_ContentRendered(object sender, EventArgs e) {
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labelTextBox.SelectAll();
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labelTextBox.Focus();
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}
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/// <summary>
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/// Validates input and updates controls appropriately.
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/// </summary>
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private void UpdateControls() {
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if (!IsLoaded) {
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return;
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}
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// Label must be valid and not already exist in the table we're editing. (For project
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// symbols, it's okay if an identical label exists elsewhere.)
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string trimLabel = Symbol.TrimAndValidateLabel(Label, string.Empty,
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out bool labelValid, out bool unused1, out bool unused2, out bool unused3,
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out Symbol.LabelAnnotation unused4);
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bool labelUnique;
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// NOTE: should be using Asm65.Label.LABEL_COMPARER?
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if (mDefSymbolList.TryGetValue(trimLabel, out DefSymbol existing)) {
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// It's okay if it's the same object.
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labelUnique = (existing == mOldSym);
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} else {
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labelUnique = true;
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}
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// For local variables, do a secondary uniqueness check across the full symbol table.
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if (labelUnique && mSymbolTable != null) {
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labelUnique = !mSymbolTable.TryGetValue(trimLabel, out Symbol sym);
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// It's okay if this and the other are both variables.
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if (!labelUnique && IsVariable && sym.IsVariable) {
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labelUnique = true;
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}
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}
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// Value must be blank, meaning "erase any earlier definition", or valid value.
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// (Hmm... don't currently have a way to specify "no symbol" in DefSymbol.)
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//if (!string.IsNullOrEmpty(valueTextBox.Text)) {
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bool valueValid = ParseValue(out int thisValue, out int unused5);
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//} else {
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// valueValid = true;
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//}
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bool widthValid = true;
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int thisWidth = -1;
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if (IsConstant && !IsVariable) {
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// width field is ignored
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} else if (string.IsNullOrEmpty(VarWidth)) {
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// blank field is okay if the width is optional
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widthValid = mIsWidthOptional;
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} else if (!Asm65.Number.TryParseInt(VarWidth, out thisWidth, out int unusedBase) ||
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thisWidth < DefSymbol.MIN_WIDTH || thisWidth > DefSymbol.MAX_WIDTH ||
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(IsVariable && thisWidth > 256)) {
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// All widths must be between 1 and 65536. For a variable, the full thing must
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// fit on zero page without wrapping. We test for 256 here so that we highlight
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// the "bad width" label, rather than the "it doesn't fit on the page" label.
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widthValid = false;
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}
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bool valueRangeValid = true;
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if (IsVariable && valueValid && widthValid) {
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// $ff with width 1 is okay, $ff with width 2 is not
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if (thisValue < 0 || thisValue + thisWidth > 256) {
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valueRangeValid = false;
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}
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} else if (IsAddress && valueValid) {
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// limit to positive 24-bit integers; use a long for value+width so we
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// don't get fooled by overflow
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long lvalue = thisValue;
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if (thisWidth > 0) {
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lvalue += thisWidth - 1;
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}
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if (thisValue < 0 || lvalue > 0x00ffffff) {
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valueRangeValid = false;
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}
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}
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Symbol.Type symbolType = IsConstant ? Symbol.Type.Constant : Symbol.Type.ExternalAddr;
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// For a variable, the value must also be unique within the table. Values have
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// width, so we need to check for overlap.
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bool valueUniqueValid = true;
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if (IsVariable && valueValid && widthValid) {
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foreach (KeyValuePair<string, DefSymbol> kvp in mDefSymbolList) {
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if (kvp.Value != mOldSym &&
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DefSymbol.CheckOverlap(kvp.Value, thisValue, thisWidth, symbolType)) {
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valueUniqueValid = false;
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break;
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}
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}
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}
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bool rwValid = true;
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if (!IsVariable && IsAddress) {
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rwValid = IsReadChecked || IsWriteChecked;
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}
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labelNotesLabel.Foreground = labelValid ? mDefaultLabelColor : Brushes.Red;
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labelUniqueLabel.Foreground = projectLabelUniqueLabel.Foreground =
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labelUnique ? mDefaultLabelColor : Brushes.Red;
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valueNotesLabel.Foreground = valueValid ? mDefaultLabelColor : Brushes.Red;
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addrValueRangeLabel.Foreground = valueRangeValid ? mDefaultLabelColor : Brushes.Red;
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varValueRangeLabel.Foreground = valueRangeValid ? mDefaultLabelColor : Brushes.Red;
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varValueUniqueLabel.Foreground = valueUniqueValid ? mDefaultLabelColor : Brushes.Red;
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widthNotesLabel.Foreground = widthValid ? mDefaultLabelColor : Brushes.Red;
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checkReadWriteLabel.Foreground = rwValid ? mDefaultLabelColor : Brushes.Red;
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IsValid = labelValid && labelUnique && valueValid && valueRangeValid &&
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valueUniqueValid && widthValid && rwValid;
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}
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private bool ParseValue(out int value, out int numBase) {
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string str = Value;
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if (str.IndexOf('/') >= 0) {
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// treat as address
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numBase = 16;
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return Asm65.Address.ParseAddress(str, (1 << 24) - 1, out value);
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} else {
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return Asm65.Number.TryParseInt(str, out value, out numBase);
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}
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}
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private void OkButton_Click(object sender, RoutedEventArgs e) {
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ParseValue(out int value, out int numBase);
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FormatDescriptor.SubType subType = FormatDescriptor.GetSubTypeForBase(numBase);
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int width = -1;
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if (IsConstant && !IsVariable) {
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// width field is ignored, don't bother parsing
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} else if (!string.IsNullOrEmpty(VarWidth)) {
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bool ok = Asm65.Number.TryParseInt(VarWidth, out width, out int unusedNumBase);
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Debug.Assert(ok);
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}
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DefSymbol.DirectionFlags direction;
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if (IsReadChecked && IsWriteChecked) {
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direction = DefSymbol.DirectionFlags.ReadWrite;
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} else if (IsReadChecked) {
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direction = DefSymbol.DirectionFlags.Read;
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} else if (IsWriteChecked) {
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direction = DefSymbol.DirectionFlags.Write;
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} else {
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Debug.Assert(false);
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direction = DefSymbol.DirectionFlags.None;
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}
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// Parse and strip the annotation.
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string trimLabel = Symbol.TrimAndValidateLabel(Label, string.Empty, out bool unused1,
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out bool unused2, out bool unused3, out bool unused4,
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out Symbol.LabelAnnotation anno);
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NewSym = new DefSymbol(trimLabel, value,
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IsVariable ? Symbol.Source.Variable : Symbol.Source.Project,
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IsConstant ? Symbol.Type.Constant : Symbol.Type.ExternalAddr, anno,
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subType, width, width > 0, Comment, direction, null, string.Empty);
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DialogResult = true;
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}
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}
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}
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