///<summary>Create a DataView</summary>
public DataView()
{
dvControl = new DataViewControl(this);
dvDisplay = new DataViewDisplay(this);
dvDisplay.Control = dvControl;
dvControl.Display = dvDisplay;
// initialize clipdata buffer
// and clipboard
clipdata = new byte[0];
clipboard = Gtk.Clipboard.Get(Gdk.Atom.Intern("CLIPBOARD", true));
// initialize undo/redo cursor offset stacks
cursorUndoDeque = new Deque <CursorState>();
cursorRedoDeque = new Deque <CursorState>();
prefID = "dv" + this.GetHashCode().ToString();
PreferencesChangedHandler handler = new PreferencesChangedHandler(OnPreferencesChanged);
Preferences.Proxy.Subscribe("Undo.Limited", prefID, handler);
Preferences.Proxy.Subscribe("Undo.Actions", prefID, handler);
Preferences.Proxy.Subscribe("Highlight.PatternMatch", prefID, handler);
Preferences.Proxy.Subscribe("ByteBuffer.TempDir", prefID, handler);
}
public void CloseFile(DataView dv)
{
if (!dv.Buffer.FileOperationsAllowed)
{
return;
}
// if user decides not to close after all
if (AskForSaveIfFileChanged(dv) == false)
{
return;
}
dataBook.RemoveView(dv);
// promptly free resources memory (eg pixmaps)
dv.Buffer.CloseFile();
dv.Cleanup();
// Make sure the new current DataView has the focus
DataViewDisplay dvd = (DataViewDisplay)dataBook.CurrentPageWidget;
if (dvd != null)
{
dvd.GrabKeyboardFocus();
}
else
{
// there is no dataview left,
// update title and statusbars
mainWindow.Title = "Bless - Gtk# Hex Editor";
Services.UI.Info.ClearMessage();
}
}
public void Cleanup()
{
this.Buffer = null;
// all these to help the GC...
dvDisplay.Cleanup();
dvDisplay = null;
dvControl.Cleanup();
dvControl = null;
Preferences.Proxy.Unsubscribe("Undo.Limited", prefID);
Preferences.Proxy.Unsubscribe("Undo.Actions", prefID);
Preferences.Proxy.Unsubscribe("Highlight.PatternMatch", prefID);
Preferences.Proxy.Unsubscribe("ByteBuffer.TempDir", prefID);
}
///<summary>
/// Create and setup a DataView
///</summary>
public DataView CreateDataView(ByteBuffer bb)
{
DataView dv = new DataView();
string layoutFile = string.Empty;
// try to load default (from user preferences) layout file
try {
layoutFile = Preferences.Instance["Default.Layout.File"];
string useCurrent = Preferences.Instance["Default.Layout.UseCurrent"];
if (useCurrent == "True" && dataBook.NPages > 0)
{
DataViewDisplay dvd = (DataViewDisplay)dataBook.CurrentPageWidget;
layoutFile = dvd.Layout.FilePath;
}
if (layoutFile != string.Empty)
{
dv.Display.Layout = new Bless.Gui.Layout(layoutFile);
}
}
catch (Exception ex) {
string msg = string.Format(Catalog.GetString("Error loading layout '{0}'. Loading default layout instead."), layoutFile);
ErrorAlert ea = new ErrorAlert(msg, ex.Message, mainWindow);
ea.Run();
ea.Destroy();
}
if (Preferences.Instance["Default.EditMode"] == "Insert")
{
dv.Overwrite = false;
}
else if (Preferences.Instance["Default.EditMode"] == "Overwrite")
{
dv.Overwrite = true;
}
dv.Buffer = bb;
return(dv);
}
public void Cleanup()
{
okp_focusArea = null;
dataView = null;
dvDisplay = null;
}
