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6502bench/SourceGen/WpfGui/EditLocalVariableTable.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.Collections;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Input;
using Asm65;
using CommonWPF;
namespace SourceGen.WpfGui {
/// <summary>
/// Edit a LocalVariableTable.
/// </summary>
public partial class EditLocalVariableTable : Window, INotifyPropertyChanged {
/// <summary>
/// Output. Will be null if the table was deleted, or if cancel was hit while
/// creating a new table.
/// </summary>
public LocalVariableTable NewTable { get; private set; }
/// <summary>
/// Output. If the table was moved, the new offset will be different from the old.
/// </summary>
public int NewOffset { get; private set; }
// Item for the symbol list view ItemsSource.
public class FormattedSymbol {
public string Label { get; private set; }
public string Value { get; private set; }
public string Type { get; private set; }
public int Width { get; private set; }
public string Comment { get; private set; }
public DefSymbol DefSym;
public FormattedSymbol(DefSymbol defSym, string label, string value,
string type, int width, string comment) {
Label = label;
Value = value;
Type = type;
Width = width;
Comment = comment;
DefSym = defSym;
}
}
// List of items. The Label is guaranteed to be unique.
public ObservableCollection<FormattedSymbol> Variables { get; private set; } =
new ObservableCollection<FormattedSymbol>();
/// <summary>
/// Clear-previous flag.
/// </summary>
public bool ClearPrevious {
get { return mWorkTable.ClearPrevious; }
set { mWorkTable.ClearPrevious = value; OnPropertyChanged(); }
}
/// <summary>
/// True if this is not a new table. (Using "not" because that's the sense we
/// need in XAML.)
/// </summary>
public bool IsNotNewTable {
get { return mIsNotNewTable; }
set { mIsNotNewTable = value; OnPropertyChanged(); }
}
private bool mIsNotNewTable;
/// <summary>
/// Table header text string, formatted at load time.
/// </summary>
public string TableHeaderText {
get { return mTableHeaderText; }
set { mTableHeaderText = value; OnPropertyChanged(); }
}
private string mTableHeaderText;
/// <summary>
/// Working set. Used internally to hold state.
/// </summary>
private LocalVariableTable mWorkTable;
/// <summary>
/// Project reference.
/// </summary>
private DisasmProject mProject;
/// <summary>
/// Format object to use when formatting addresses and constants.
/// </summary>
private Formatter mFormatter;
/// <summary>
/// Symbol table for uniqueness check.
/// </summary>
private SymbolTable mSymbolTable;
/// <summary>
/// Table offset, for move ops.
/// </summary>
private int mOffset;
// INotifyPropertyChanged implementation
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged([CallerMemberName] string propertyName = "") {
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
/// <summary>
/// Constructor. lvt will be null when creating a new entry.
/// </summary>
public EditLocalVariableTable(Window owner, DisasmProject project, Formatter formatter,
LocalVariableTable lvt, int offset) {
InitializeComponent();
Owner = owner;
DataContext = this;
mProject = project;
mFormatter = formatter;
mSymbolTable = project.SymbolTable;
mOffset = NewOffset = offset;
if (lvt != null) {
mWorkTable = new LocalVariableTable(lvt);
mIsNotNewTable = true;
} else {
mWorkTable = new LocalVariableTable();
}
for (int i = 0; i < mWorkTable.Count; i++) {
DefSymbol defSym = mWorkTable[i];
Variables.Add(CreateFormattedSymbol(defSym));
}
}
public void Window_Loaded(object sender, RoutedEventArgs e) {
string fmt = (string)FindResource("str_TableHeaderFmt");
TableHeaderText = string.Format(fmt, mFormatter.FormatOffset24(mOffset));
UpdateControls();
}
/// <summary>
/// Loads entries from the work table into the items source.
/// </summary>
private FormattedSymbol CreateFormattedSymbol(DefSymbol defSym) {
string typeStr;
if (defSym.IsConstant) {
typeStr = Res.Strings.ABBREV_STACK_RELATIVE;
} else {
typeStr = Res.Strings.ABBREV_ADDRESS;
}
FormattedSymbol fsym = new FormattedSymbol(
defSym,
defSym.GenerateDisplayLabel(mFormatter),
mFormatter.FormatValueInBase(defSym.Value, defSym.DataDescriptor.NumBase),
typeStr,
defSym.DataDescriptor.Length,
defSym.Comment);
return fsym;
}
/// <summary>
/// Handles a Sorting event. We need to sort by numeric value on the Value field, but
/// we want to use custom-formatted numeric values in multiple bases.
/// </summary>
private void SymbolsList_Sorting(object sender, DataGridSortingEventArgs e) {
DataGridColumn col = e.Column;
// Set the SortDirection to a specific value. If we don't do this, SortDirection
// remains un-set, and the column header doesn't show up/down arrows or change
// direction when clicked twice.
ListSortDirection direction = (col.SortDirection != ListSortDirection.Ascending) ?
ListSortDirection.Ascending : ListSortDirection.Descending;
col.SortDirection = direction;
bool isAscending = direction != ListSortDirection.Descending;
IComparer comparer = new SymbolsListComparer(col.DisplayIndex, isAscending);
ListCollectionView lcv =
(ListCollectionView)CollectionViewSource.GetDefaultView(symbolsList.ItemsSource);
lcv.CustomSort = comparer;
e.Handled = true;
}
private class SymbolsListComparer : IComparer {
// Must match order of items in DataGrid. DataGrid must not allow columns to be
// reordered. We could check col.Header instead, but then we have to assume that
// the Header is a string that doesn't get renamed.
private enum SortField {
Label = 0, Value = 1, Type = 2, Width = 3, Comment = 4
}
private SortField mSortField;
private bool mIsAscending;
public SymbolsListComparer(int displayIndex, bool isAscending) {
Debug.Assert(displayIndex >= 0 && displayIndex <= 4);
mIsAscending = isAscending;
mSortField = (SortField)displayIndex;
}
// IComparer interface
public int Compare(object o1, object o2) {
FormattedSymbol fsym1 = (FormattedSymbol)o1;
FormattedSymbol fsym2 = (FormattedSymbol)o2;
// Sort primarily by specified field, secondarily by label (which should
// be unique).
int cmp;
switch (mSortField) {
case SortField.Label:
cmp = string.Compare(fsym1.Label, fsym2.Label);
break;
case SortField.Value:
cmp = fsym1.DefSym.Value - fsym2.DefSym.Value;
break;
case SortField.Type:
cmp = string.Compare(fsym1.Type, fsym2.Type);
break;
case SortField.Width:
cmp = fsym1.Width - fsym2.Width;
break;
case SortField.Comment:
cmp = string.Compare(fsym1.Comment, fsym2.Comment);
break;
default:
Debug.Assert(false);
return 0;
}
if (cmp == 0) {
cmp = string.Compare(fsym1.Label, fsym2.Label);
}
if (!mIsAscending) {
cmp = -cmp;
}
return cmp;
}
}
private void UpdateControls() {
// Enable or disable the edit/remove buttons based on how many items are selected.
// (We're currently configured for single-select, so this is really just a != 0 test.)
int symSelCount = symbolsList.SelectedItems.Count;
removeSymbolButton.IsEnabled = (symSelCount == 1);
editSymbolButton.IsEnabled = (symSelCount == 1);
}
private void OkButton_Click(object sender, RoutedEventArgs e) {
NewTable = mWorkTable;
DialogResult = true;
}
private void Window_KeyEventHandler(object sender, KeyEventArgs e) {
if (e.Key == Key.Return && Keyboard.Modifiers.HasFlag(ModifierKeys.Control)) {
OkButton_Click(null, null);
}
}
private void DeleteTableButton_Click(object sender, RoutedEventArgs e) {
MessageBoxResult result = MessageBox.Show((string)FindResource("str_ConfirmDelete"),
(string)FindResource("str_ConfirmDeleteCaption"),
MessageBoxButton.YesNo, MessageBoxImage.Question);
if (result == MessageBoxResult.Yes) {
NewTable = null;
DialogResult = true;
}
}
private void MoveTableButton_Click(object sender, RoutedEventArgs e) {
EditLvTableLocation dlg = new EditLvTableLocation(this, mProject, mOffset, NewOffset);
if (dlg.ShowDialog() == true) {
NewOffset = dlg.NewOffset;
}
}
private void SymbolsList_SelectionChanged(object sender, SelectionChangedEventArgs e) {
UpdateControls();
}
private void SymbolsList_MouseDoubleClick(object sender, MouseButtonEventArgs e) {
if (!symbolsList.GetClickRowColItem(e, out int unusedRow, out int unusedCol,
out object objItem)) {
// Header or empty area; ignore.
return;
}
FormattedSymbol item = (FormattedSymbol)objItem;
DoEditSymbol(item.DefSym);
}
private void NewSymbolButton_Click(object sender, RoutedEventArgs e) {
EditDefSymbol dlg = new EditDefSymbol(this, mFormatter, mWorkTable.GetSortedByLabel(),
null, null, mSymbolTable, true, false);
dlg.ShowDialog();
if (dlg.DialogResult == true) {
Debug.WriteLine("ADD: " + dlg.NewSym);
mWorkTable.AddOrReplace(dlg.NewSym);
// Add it to the display list, select it, and scroll it into view.
FormattedSymbol newItem = CreateFormattedSymbol(dlg.NewSym);
Variables.Add(newItem);
symbolsList.SelectedItem = newItem;
symbolsList.ScrollIntoView(newItem);
UpdateControls();
}
}
private void EditSymbolButton_Click(object sender, EventArgs e) {
// Single-select list view, button dimmed when no selection.
Debug.Assert(symbolsList.SelectedItems.Count == 1);
FormattedSymbol item = (FormattedSymbol)symbolsList.SelectedItems[0];
DoEditSymbol(item.DefSym);
}
private void DoEditSymbol(DefSymbol defSym) {
EditDefSymbol dlg = new EditDefSymbol(this, mFormatter, mWorkTable.GetSortedByLabel(),
defSym, defSym, mSymbolTable, true, false);
dlg.ShowDialog();
if (dlg.DialogResult == true) {
// Label might have changed, so remove old before adding new.
mWorkTable.RemoveByLabel(defSym.Label);
mWorkTable.AddOrReplace(dlg.NewSym);
// Replace entry in items source.
for (int i = 0; i < Variables.Count; i++) {
if (Variables[i].DefSym == defSym) {
Variables[i] = CreateFormattedSymbol(dlg.NewSym);
break;
}
}
UpdateControls();
}
}
private void RemoveSymbolButton_Click(object sender, RoutedEventArgs e) {
// Single-select list view, button dimmed when no selection.
Debug.Assert(symbolsList.SelectedItems.Count == 1);
int selectionIndex = symbolsList.SelectedIndex;
FormattedSymbol item = (FormattedSymbol)symbolsList.SelectedItems[0];
DefSymbol defSym = item.DefSym;
mWorkTable.RemoveByLabel(defSym.Label);
for (int i = 0; i < Variables.Count; i++) {
if (Variables[i].DefSym == defSym) {
Variables.RemoveAt(i);
break;
}
}
UpdateControls();
// Restore selection to the item that used to come after the one we just deleted,
// so you can hit "Remove" repeatedly to delete multiple items.
int newCount = symbolsList.Items.Count;
if (selectionIndex >= newCount) {
selectionIndex = newCount - 1;
}
if (selectionIndex >= 0) {
symbolsList.SelectedIndex = selectionIndex;
removeSymbolButton.Focus(); // so you can keep banging on Enter
}
}
}
}