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Viewing changes to samples/ComponentInspector/ComponentInspector.Core/Src/ObjectBrowser/Dialogs/ProgressDialog.cs

  • Committer: sk
  • Date: 2011-09-10 05:17:57 UTC
  • Revision ID: halega@halega.com-20110910051757-qfouz1llya9m6boy
4.1.0.7915 Release Candidate 1

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samples/ComponentInspector/ComponentInspector.Core/Src/ObjectBrowser/Dialogs/ProgressDialog.cs
 
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// <file>
 
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//     <copyright see="prj:///doc/copyright.txt"/>
 
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//     <license see="prj:///doc/license.txt"/>
 
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//     <owner name="Oakland Software Incorporated" email="general@oaklandsoftware.com"/>
 
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//     <version>$Revision$</version>
 
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// </file>
 
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using System;
 
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using System.Drawing;
 
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using System.Threading;
 
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using System.Windows.Forms;
 
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using NoGoop.Util;
 
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namespace NoGoop.ObjBrowser.Dialogs
 
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{
 
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        internal class ProgressDialog : Dialog
 
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        {
 
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                protected ProgressBar           _progress;
 
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                protected RichTextBox           _textBox;
 
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                protected Label                 _label;
 
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                protected bool                  _done;
 
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                // Parameters
 
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                protected String                _title;
 
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                protected String                _bodyText;
 
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                protected int                   _maxValue;
 
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                protected bool                  _hasProgressText;
 
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                protected bool                  _final;
 
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                protected Cursor                _saveCursor;
 
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                // Indicates this should be considered finished when the
 
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                // end is reached on this progress bar.  If this is false,
 
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                // the progress dialog is still kept up because it expects
 
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                // more work to do.
 
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                internal const bool              FINAL = true;
 
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                internal const bool              HAS_PROGRESS_TEXT = true;
 
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                // Used for the maxValue
 
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                internal const int               NO_PROGRESS_BAR = -1;
 
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                public ProgressDialog() : base(!INCLUDE_BUTTONS)
 
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                {
 
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                        Height = 100;
 
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                        Width = 450;
 
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                        // Can't close me
 
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                        ControlBox = false;
 
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                        StartPosition = FormStartPosition.Manual;
 
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                        /****
 
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                                This does not seem to work
 
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                        TopLevel = false;
 
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                        TopMost = true;
 
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                        Parent = ObjectBrowser.ObjBrowser;
 
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                        StartPosition = FormStartPosition.CenterParent;
 
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                        ****/
 
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                        // Have to manually compute location based on parent's location
 
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                        if (ObjectBrowserForm.Instance != null) {
 
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                                Size parentSize = ObjectBrowserForm.Instance.Size;
 
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                                Point loc = ObjectBrowserForm.Instance.DesktopLocation;
 
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                                Point ourLoc = new Point();
 
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                                ourLoc.Y = loc.Y + (int)((parentSize.Height - Size.Height) / 2);
 
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                                ourLoc.X = loc.X + (int)((parentSize.Width - Size.Width) / 2);
 
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                                Location = ourLoc;
 
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                                DesktopLocation = ourLoc;
 
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                        }
 
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                }
 
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                public void Setup(String title,
 
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                                                  String bodyText,
 
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                                                  int maxValue,
 
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                                                  bool hasProgressText,
 
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                                                  bool final)
 
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                {
 
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                        TraceUtil.WriteLineInfo(this, "Progress Setup " 
 
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                                                                           + bodyText + " max: " + maxValue);
 
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                        // When transitioning from phase to phase, if this is the 
 
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                        // last phase, the maxValue might be zero
 
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                        if (maxValue == 0 && final)
 
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                        {
 
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                                TraceUtil.WriteLineInfo(this, "Setup final close");
 
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                                Finished();
 
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                                return;
 
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                        }
 
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                        _title = title;
 
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                        _bodyText = bodyText;
 
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                        _maxValue = maxValue;
 
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                        _hasProgressText = hasProgressText;
 
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                        _final = final;
 
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                        // We are resetting, use the existing controls
 
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                        if (Controls.Count > 0)
 
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                        {
 
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                                _done = false;
 
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                                _textBox.Text = _bodyText;
 
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                                _progress.Value = 0;
 
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                                _progress.Maximum = _maxValue;
 
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                                if (_label != null)
 
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                                        _label.Text = "";
 
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                                TraceUtil.WriteLineInfo(this, "Using existing controls");
 
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                                return;
 
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                        }
 
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                        Text = _title;
 
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                        if (_hasProgressText)
 
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                        {
 
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                                _label = new Label();
 
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                                _label.Dock = DockStyle.Bottom;
 
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                                _label.Text = "";
 
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                                // Give space for two lines incase it wraps
 
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                                _label.Height = 30;
 
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                                Controls.Add(_label);
 
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                        }
 
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                        if (_maxValue != NO_PROGRESS_BAR)
 
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                        {
 
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                                _progress = new ProgressBar();
 
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                                _progress.Maximum = _maxValue;
 
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                                _progress.Dock = DockStyle.Top;
 
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                                Controls.Add(_progress);
 
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                                Height += 80;
 
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                        }
 
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                        _textBox = Utils.MakeDescText(_bodyText, this);
 
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                        _textBox.Dock = DockStyle.Top;
 
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                        Controls.Add(_textBox);
 
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                }
 
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                internal void UpdateProgress(int increment)
 
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                {
 
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                        _progress.Value += increment;
 
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                        TraceUtil.WriteLineVerbose(this, 
 
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                                                                           Thread.CurrentThread.Name 
 
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                                                                           + " Update progress: "
 
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                                                                           + increment 
 
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                                                                           + " current: " 
 
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                                                                           + _progress.Value);
 
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                        if (_progress.Value >= _progress.Maximum &&
 
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                                _final)
 
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                        {
 
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                                TraceUtil.WriteLineInfo(this, Thread.CurrentThread.Name 
 
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                                                                                + " Update progress done");
 
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                                Finished();
 
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                        }
 
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                }
 
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                internal void UpdateProgressText(String text)
 
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                {
 
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                        _label.Text = text;
 
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                }
 
163
 
 
164
 
 
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                internal void Finished()
 
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                {
 
167
                        lock (this)
 
168
                        {
 
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                                TraceUtil.WriteLineInfo(this, "Finished - enter");
 
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                                _done = true;
 
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                                Cursor.Current = _saveCursor;
 
172
                        }
 
173
 
 
174
                        TraceUtil.WriteLineInfo
 
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                                (this, "Finished - doing close");
 
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                        try
 
178
                        {
 
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                                Close();
 
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                        }
 
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                        catch (Exception ex)
 
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                        {
 
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                                TraceUtil.WriteLineWarning
 
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                                        (this, "Finished - exception on close " + ex);
 
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                        }
 
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                        TraceUtil.WriteLineInfo
 
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                                (this, "Finished - after close");
 
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189
                }
 
190
 
 
191
                internal void ShowIfNotDone()
 
192
                {
 
193
                        TraceUtil.WriteLineInfo(this, "Progress - Show if not done");
 
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                        lock (this) {
 
195
                                if (_done)
 
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                                        return;
 
197
                                TraceUtil.WriteLineInfo(this, "Progress - Showing");
 
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199
                                // Set hourglass cursor
 
200
                                _saveCursor = Cursor.Current;
 
201
                                Cursor.Current = Cursors.WaitCursor;
 
202
                        }
 
203
 
 
204
                        // Setup and add the controls on the same thread
 
205
                        // as the one we show it
 
206
                        TraceUtil.WriteLineInfo(this, "Progress ShowThread - setup complete");
 
207
                        
 
208
                        Show();
 
209
 
 
210
                        // Make sure text and all associated with the dialog 
 
211
                        // is present
 
212
                        Application.DoEvents();
 
213
                }
 
214
        }
 
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}