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e7fccfda03
Got parameter in/out working in EditVisualization dialog. Did some rearranging in PluginCommon interfaces and data structures. Still doesn't do anything useful.
197 lines
6.9 KiB
C#
197 lines
6.9 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.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.Media;
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namespace SourceGen.WpfGui {
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/// <summary>
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/// Allows repositioning of a local variable table.
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/// </summary>
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/// <remarks>
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/// This would be better implemented as cut/copy/paste, allowing parts of tables to be
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/// freely duplicated and copied around, but that's a bunch of work for something that
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/// I'm not yet convinced is important. (It might not be that much more work in and of
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/// itself, but once the action is possible people will expect it to work for comments
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/// and notes, and maybe want to paste operand formatting.)
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/// </remarks>
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public partial class EditLvTableLocation : Window, INotifyPropertyChanged {
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/// <summary>
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/// After a successful move, this will hold the new offset.
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/// </summary>
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public int NewOffset { get; private set; }
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/// <summary>
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/// Project reference.
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/// </summary>
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private DisasmProject mProject;
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/// <summary>
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/// File offset at which we are initially positioned.
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/// </summary>
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private int mCurrentOffset;
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// Dialog label text color.
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private Brush mDefaultLabelColor = SystemColors.WindowTextBrush;
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private Brush mErrorLabelColor = Brushes.Red;
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public string OffsetStr {
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get { return mOffsetStr; }
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set { mOffsetStr = value; OnPropertyChanged(); ValidateOffset(); }
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}
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private string mOffsetStr;
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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 Brush InvalidOffsetBrush {
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get { return mInvalidOffsetBrush; }
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set { mInvalidOffsetBrush = value; OnPropertyChanged(); }
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}
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private Brush mInvalidOffsetBrush;
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public Brush NotInstructionBrush {
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get { return mNotInstructionBrush; }
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set { mNotInstructionBrush = value; OnPropertyChanged(); }
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}
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private Brush mNotInstructionBrush;
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public Brush TableAlreadyPresentBrush {
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get { return mTableAlreadyPresentBrush; }
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set { mTableAlreadyPresentBrush = value; OnPropertyChanged(); }
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}
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private Brush mTableAlreadyPresentBrush;
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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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public EditLvTableLocation(Window owner, DisasmProject project, int curOffset,
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int initialOffset) {
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InitializeComponent();
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Owner = owner;
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DataContext = this;
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mProject = project;
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mCurrentOffset = curOffset;
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// curOffset is where the table actually is. initialOffset reflects changes
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// made on a previous invocation of this dialog.
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OffsetStr = initialOffset.ToString("x6");
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}
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private void Window_ContentRendered(object sender, EventArgs e) {
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offsetTextBox.SelectAll();
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offsetTextBox.Focus();
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}
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private void OkButton_Click(object sender, RoutedEventArgs e) {
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NewOffset = Convert.ToInt32(OffsetStr, 16);
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DialogResult = true;
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}
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private void OffsetUp_Click(object sender, RoutedEventArgs e) {
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AdjustOffset(-1);
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}
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private void OffsetDown_Click(object sender, RoutedEventArgs e) {
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AdjustOffset(1);
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}
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/// <summary>
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/// Adjusts the offset up or down enough to get it to the next instruction start that
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/// doesn't already have a local variable table.
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/// </summary>
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/// <param name="adj">Adjustment, should be +1 or -1.</param>
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private void AdjustOffset(int adj) {
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int offset;
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try {
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offset = Convert.ToInt32(OffsetStr, 16);
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} catch (Exception) {
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// string is garbage, just put the initial offset back in
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OffsetStr = mCurrentOffset.ToString("x6");
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return;
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}
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offset += adj;
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while (offset >= 0 && offset < mProject.FileDataLength) {
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if (mProject.GetAnattrib(offset).IsInstructionStart && !HasTableNotSelf(offset)) {
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// found a winner
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OffsetStr = offset.ToString("x6");
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return;
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}
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offset += adj;
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}
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}
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private void ValidateOffset() {
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InvalidOffsetBrush = NotInstructionBrush = TableAlreadyPresentBrush =
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mDefaultLabelColor;
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if (string.IsNullOrEmpty(OffsetStr)) {
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InvalidOffsetBrush = mErrorLabelColor;
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IsValid = false;
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return;
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}
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int offset;
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try {
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offset = Convert.ToInt32(OffsetStr, 16);
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} catch (Exception) {
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InvalidOffsetBrush = mErrorLabelColor;
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IsValid = false;
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return;
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}
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if (offset < 0 || offset >= mProject.FileDataLength) {
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InvalidOffsetBrush = mErrorLabelColor;
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IsValid = false;
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return;
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}
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Anattrib attr = mProject.GetAnattrib(offset);
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if (!attr.IsInstructionStart) {
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NotInstructionBrush = mErrorLabelColor;
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IsValid = false;
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return;
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}
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if (HasTableNotSelf(offset)) {
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TableAlreadyPresentBrush = mErrorLabelColor;
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IsValid = false;
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return;
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}
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IsValid = true;
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}
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/// <summary>
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/// Returns true if the specified offset is the start of an instruction, and doesn't
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/// have a local variable table unless the table is us.
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/// </summary>
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private bool HasTableNotSelf(int offset) {
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return offset != mCurrentOffset &&
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mProject.LvTables.TryGetValue(offset, out LocalVariableTable unused);
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}
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}
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}
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