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6502bench/SourceGen/WpfGui/ProjectLoadIssues.xaml.cs
Andy McFadden d99eec0d4f Open damaged projects in read-only mode
If we detect a problem that requires intervention during loading,
e.g. we find unknown elements because we're loading a file created
by a newer version, default to read-only mode.

Read only mode (1) refuses to apply changes, (2) refuses to add
changes to the undo/redo list, and (3) disables Save/SaveAs.  The
mode is indicated in the title bar.

Also, flipped the order of items in the title bar so that "6502bench
SourceGen" comes last.  This allows you to read the project name in
short window title snippets.  (Visual Studio, Notepad, and others
do it this way as well.)
2019-10-26 13:20:54 -07:00

97 lines
3.2 KiB
C#

/*
* 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.ComponentModel;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Windows;
namespace SourceGen.WpfGui {
/// <summary>
/// Display errors and warnings generated while attempting to open a project.
/// </summary>
public partial class ProjectLoadIssues : Window, INotifyPropertyChanged {
public bool WantReadOnly {
get { return mWantReadOnly; }
set { mWantReadOnly = value; OnPropertyChanged(); }
}
private bool mWantReadOnly;
public bool ShowSaveWarning {
get { return mShowItemWarning; }
set { mShowItemWarning = value; OnPropertyChanged(); }
}
private bool mShowItemWarning;
/// <summary>
/// Multi-line message for text box.
/// </summary>
private string mMessages;
/// <summary>
/// Which buttons are enabled.
/// </summary>
private Buttons mAllowedButtons;
public enum Buttons {
Unknown = 0, Continue, Cancel, ContinueOrCancel
}
// INotifyPropertyChanged implementation
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged([CallerMemberName] string propertyName = "") {
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
public ProjectLoadIssues(Window owner, string msgs, Buttons allowedButtons) {
InitializeComponent();
Owner = owner;
DataContext = this;
mMessages = msgs;
mAllowedButtons = allowedButtons;
}
private void ProjectLoadIssues_Loaded(object sender, RoutedEventArgs e) {
messageTextBox.Text = mMessages;
if (mAllowedButtons == Buttons.Cancel) {
// Continue not allowed
okButton.IsEnabled = false;
// No point warning them about invalid data if they can't continue.
ShowSaveWarning = false;
} else if (mAllowedButtons == Buttons.Continue) {
// Cancel not allowed.
cancelButton.IsEnabled = false;
// Problem is outside the scope of the project (e.g. bad platform symbol file),
// so saving the project won't change anything.
ShowSaveWarning = false;
} else {
Debug.Assert(mAllowedButtons == Buttons.ContinueOrCancel);
ShowSaveWarning = true;
WantReadOnly = true;
}
}
private void OkButton_Click(object sender, RoutedEventArgs e) {
DialogResult = true;
}
}
}