public static void StartSelection (HexEditorData data)
{
data.Caret.PreserveSelection = true;
if (!data.IsSomethingSelected) {
data.MainSelection = new Selection (data.Caret.Offset, data.Caret.Offset);
}
// data.Caret.AutoScrollToCaret = false;
}
public virtual void Redo(HexEditorData data)
{
if (redoNode == null)
{
throw new NullReferenceException("redoNode == null");
}
data.pieceTable.tree.Root = redoNode;
redoCaret.Set(data.Caret);
}
public override byte[] GetBytes(HexEditorData hexEditorData, long myOffset, long offset, int count)
{
byte[] result = new byte[count];
for (int i = 0, j = (int)(AddBufferOffset + offset - myOffset); i < result.Length; i++, j++)
{
result[i] = hexEditorData.addBuffer [j];
}
return(result);
}
public static void Right (HexEditorData data)
{
if (!data.Caret.InTextEditor && data.Caret.SubPosition < data.Caret.MaxSubPosition) {
data.Caret.SubPosition++;
return;
}
long newOffset = System.Math.Min (data.Length, data.Caret.Offset + 1);
if (newOffset != data.Caret.Offset) {
data.Caret.Offset = newOffset;
}
}
public static void Select (HexEditorData data, Action<HexEditorData> caretMoveAction)
{
PositionChangedHandler handler = new PositionChangedHandler (data);
data.Caret.OffsetChanged += handler.DataCaretPositionChanged;
StartSelection (data);
caretMoveAction (data);
data.Caret.OffsetChanged -= handler.DataCaretPositionChanged;
data.Caret.AutoScrollToCaret = true;
data.Caret.PreserveSelection = false;
}
public static void Backspace (HexEditorData data)
{
if (data.IsSomethingSelected) {
data.DeleteSelection ();
return;
}
if (data.Caret.Offset == 0)
return;
data.Remove (data.Caret.Offset - 1, 1);
data.Caret.Offset--;
}
public static void Delete (HexEditorData data)
{
if (data.IsSomethingSelected) {
data.DeleteSelection ();
return;
}
if (data.Caret.Offset >= data.Length)
return;
data.Remove (data.Caret.Offset, 1);
data.UpdateLine (data.Caret.Line);
}
public static void Left (HexEditorData data)
{
if (!data.Caret.InTextEditor && data.Caret.SubPosition > 0) {
data.Caret.SubPosition--;
return;
}
long newOffset = System.Math.Max (0, data.Caret.Offset - 1);
if (newOffset != data.Caret.Offset) {
data.Caret.Offset = newOffset;
data.Caret.SubPosition = data.Caret.MaxSubPosition;
}
}
public static void Toggle (HexEditorData data)
{
long line = data.Caret.Offset / data.BytesInRow;
foreach (long bookmark in data.Bookmarks) {
if (line * data.BytesInRow <= bookmark && bookmark < line * data.BytesInRow + data.BytesInRow) {
data.Bookmarks.Remove (bookmark);
return;
}
}
data.Bookmarks.Add (data.Caret.Offset);
data.UpdateMargin (typeof (IconMargin), data.Caret.Line);
}
public static void GotoPrevious (HexEditorData data)
{
data.Bookmarks.Sort ();
long cur = -1;
for (int i = 0; i < data.Bookmarks.Count; i++) {
if (data.Bookmarks[i] < data.Caret.Offset && cur < data.Bookmarks[i])
cur = data.Bookmarks[i];
}
if (cur == -1 && data.Bookmarks.Count > 0)
cur = data.Bookmarks[data.Bookmarks.Count - 1];
if (cur != -1) {
data.Caret.Offset = cur;
data.UpdateLine (data.Caret.Offset / data.BytesInRow);
}
}
public static void GotoNext (HexEditorData data)
{
data.Bookmarks.Sort ();
long cur = long.MaxValue;
for (int i = 0; i < data.Bookmarks.Count; i++) {
if (data.Bookmarks[i] > data.Caret.Offset && cur > data.Bookmarks[i])
cur = data.Bookmarks[i];
}
if (cur == long.MaxValue && data.Bookmarks.Count > 0)
cur = data.Bookmarks[0];
if (cur != long.MaxValue) {
data.Caret.Offset = cur;
data.UpdateLine (data.Caret.Offset / data.BytesInRow);
}
}
public UndoGroup (HexEditorData data)
{
if (data == null)
throw new ArgumentNullException ("data");
this.data = data;
data.BeginAtomicUndo ();
}
public static void MoveLineEnd (HexEditorData data)
{
Select (data, CaretMoveActions.LineEnd);
}
public static void EndSelection (HexEditorData data)
{
data.ExtendSelectionTo (data.Caret.Offset);
// data.Caret.AutoScrollToCaret = true;
data.Caret.PreserveSelection = false;
}
public static void PageUp (HexEditorData data)
{
data.VAdjustment.Value = System.Math.Max (data.VAdjustment.LowerValue, data.VAdjustment.Value - data.VAdjustment.PageSize);
int pageLines = (int)(data.VAdjustment.PageSize + ((int)data.VAdjustment.Value % data.LineHeight) / data.LineHeight);
data.Caret.Offset = (long)System.Math.Max (0, data.Caret.Offset - data.BytesInRow * pageLines);
}
public static void ToDocumentEnd (HexEditorData data)
{
data.Caret.Offset = data.Length - 1;
}
public static void PageDown (HexEditorData data)
{
data.VAdjustment.Value = System.Math.Min (data.VAdjustment.UpperValue - data.VAdjustment.PageSize, data.VAdjustment.Value + data.VAdjustment.PageSize);
int pageLines = (int)(data.VAdjustment.PageSize + ((int)data.VAdjustment.Value % data.LineHeight) / data.LineHeight);
data.Caret.Offset = (long)System.Math.Min (data.Length, data.Caret.Offset + data.BytesInRow * pageLines);
}
public Caret(HexEditorData data)
{
this.data = data;
PreserveSelection = false;
AutoScrollToCaret = true;
}
public static void SwitchCaretMode (HexEditorData data)
{
data.Caret.IsInsertMode = !data.Caret.IsInsertMode;
data.UpdateLine (data.Caret.Line);
}
public PositionChangedHandler (HexEditorData data)
{
this.data = data;
}
public static void Down (HexEditorData data)
{
data.Caret.Offset = System.Math.Min (data.Length, data.Caret.Offset + data.BytesInRow);
}
public static void Up (HexEditorData data)
{
data.Caret.Offset = System.Math.Max (0, data.Caret.Offset - data.BytesInRow);
}
public static void SwitchSide (HexEditorData data)
{
data.Caret.InTextEditor = !data.Caret.InTextEditor;
data.UpdateLine (data.Caret.Line);
}
public void Dispose ()
{
if (data != null) {
data.EndAtomicUndo ();
data = null;
}
}
public static void MovePageDown (HexEditorData data)
{
Select (data, CaretMoveActions.PageDown);
}
public override byte[] GetBytes(HexEditorData hexEditorData, long myOffset, long offset, int count)
{
return(hexEditorData.buffer.GetBytes(BufferOffset + offset - myOffset, count));
}
public static void ToDocumentStart (HexEditorData data)
{
data.Caret.Offset = 0;
}
public static void Redo (HexEditorData data)
{
data.Redo ();
}
public static void StartLineSelection (HexEditorData data)
{
data.Caret.PreserveSelection = true;
if (!data.IsSomethingSelected)
data.MainSelection = new Selection (data.Caret.Offset, data.Caret.Offset);
}
public abstract byte[] GetBytes(HexEditorData hexEditorData, long myOffset, long offset, int count);
public static void LineHome (HexEditorData data)
{
data.Caret.Offset -= data.Caret.Offset % data.BytesInRow;
data.Caret.SubPosition = 0;
}
public static void Undo (HexEditorData data)
{
data.Undo ();
}
public static void MoveToDocumentEnd (HexEditorData data)
{
Select (data, CaretMoveActions.ToDocumentEnd);
}
public Caret (HexEditorData data)
{
this.data = data;
PreserveSelection = false;
AutoScrollToCaret = true;
}
public static void LineEnd (HexEditorData data)
{
data.Caret.Offset = System.Math.Min (data.Length - 1, data.Caret.Offset + data.BytesInRow - 1 - data.Caret.Offset % data.BytesInRow);
data.Caret.SubPosition = 0;
}