|
public LoadData ( |
||
| sourceGrid | ||
| sourceRange | ||
| startDragPosition | Starting drag position. Used only for calculating drop destination range. | |
| cutMode | CutMode | Cut mode. Can be used to remove the data from the source when pasting it to the destination or immediately. |
| return | void | |
/// <summary>
/// Get a RangeData object from the clipboard. Return null if the clipboard doesn't contains valid data formats.
/// </summary>
/// <returns></returns>
public static RangeData ClipboardGetData()
{
System.Windows.Forms.IDataObject dtObj = System.Windows.Forms.Clipboard.GetDataObject();
RangeData rngData = null;
if (dtObj.GetDataPresent(RANGEDATA_FORMAT))
{
rngData = (RangeData)dtObj.GetData(RANGEDATA_FORMAT);
}
else
{
if (dtObj.GetDataPresent(System.Windows.Forms.DataFormats.Text, true))
{
string buffer = (string)dtObj.GetData(System.Windows.Forms.DataFormats.Text, true);
rngData = new RangeData();
rngData.LoadData(buffer);
}
}
return(rngData);
}
/// <summary>
/// Get a RangeData object from the clipboard. Return null if the clipboard doesn't contains valid data formats.
/// </summary>
/// <returns></returns>
public static RangeData ClipboardGetData()
{
System.Windows.Forms.IDataObject dtObj = System.Windows.Forms.Clipboard.GetDataObject();
RangeData rngData = null;
if (dtObj.GetDataPresent(RANGEDATA_FORMAT))
{
rngData = (RangeData)dtObj.GetData(RANGEDATA_FORMAT);
}
// if RANGEDATA_FORMAT or GetData returns null use string buffer as rngData
if (rngData == null)
{
// get unicode text instead of text
if (dtObj.GetDataPresent(System.Windows.Forms.DataFormats.UnicodeText, true))
{
string buffer = (string)dtObj.GetData(System.Windows.Forms.DataFormats.UnicodeText, true);
rngData = new RangeData();
rngData.LoadData(buffer);
}
}
return(rngData);
}
/// <summary>
/// Get a RangeData object from the clipboard. Return null if the clipboard doesn't contains valid data formats.
/// </summary>
/// <returns></returns>
public static RangeData ClipboardGetData()
{
System.Windows.Forms.IDataObject dtObj = System.Windows.Forms.Clipboard.GetDataObject();
RangeData rngData = null;
if (dtObj.GetDataPresent(RANGEDATA_FORMAT))
rngData = (RangeData)dtObj.GetData(RANGEDATA_FORMAT);
else
{
if (dtObj.GetDataPresent(System.Windows.Forms.DataFormats.Text, true))
{
string buffer = (string)dtObj.GetData(System.Windows.Forms.DataFormats.Text,true);
rngData = new RangeData();
rngData.LoadData(buffer);
}
}
return rngData;
}
/// <summary>
/// Process Delete, Ctrl+C, Ctrl+V, Up, Down, Left, Right, Tab keys
/// </summary>
/// <param name="e"></param>
public virtual void ProcessSpecialGridKey(KeyEventArgs e)
{
if (e.Handled)
return;
bool enableArrows,enableTab,enablePageDownUp;
enableArrows = enableTab = enablePageDownUp = false;
if ( (SpecialKeys & GridSpecialKeys.Arrows) == GridSpecialKeys.Arrows)
enableArrows = true;
if ( (SpecialKeys & GridSpecialKeys.PageDownUp) == GridSpecialKeys.PageDownUp)
enablePageDownUp = true;
if ( (SpecialKeys & GridSpecialKeys.Tab) == GridSpecialKeys.Tab)
enableTab = true;
bool enableEscape = false;
if ( (SpecialKeys & GridSpecialKeys.Escape) == GridSpecialKeys.Escape)
enableEscape = true;
bool enableEnter = false;
if ( (SpecialKeys & GridSpecialKeys.Enter) == GridSpecialKeys.Enter)
enableEnter = true;
#region Processing keys
//Escape
if (e.KeyCode == Keys.Escape && enableEscape)
{
CellContext focusCellContext = new CellContext(this, Selection.ActivePosition);
if (focusCellContext.Cell != null && focusCellContext.IsEditing())
{
if (focusCellContext.EndEdit(true))
e.Handled = true;
}
}
//Enter
if (e.KeyCode == Keys.Enter && enableEnter)
{
CellContext focusCellContext = new CellContext(this, Selection.ActivePosition);
if (focusCellContext.Cell != null && focusCellContext.IsEditing())
{
focusCellContext.EndEdit(false);
e.Handled = true;
}
}
//Tab
if (e.KeyCode == Keys.Tab && enableTab)
{
CellContext focusCellContext = new CellContext(this, Selection.ActivePosition);
if (focusCellContext.Cell != null && focusCellContext.IsEditing())
{
//se l'editing non riesce considero il tasto processato
// altrimenti no, in questo modo il tab ha effetto anche per lo spostamento
if (focusCellContext.EndEdit(false) == false)
{
e.Handled = true;
return;
}
}
}
#endregion
#region Navigate keys: arrows, tab and PgDown/Up
if (e.KeyCode == Keys.Down && enableArrows)
{
Selection.MoveActiveCell(1, 0);
e.Handled = true;
}
else if (e.KeyCode == Keys.Up && enableArrows)
{
Selection.MoveActiveCell(-1, 0);
e.Handled = true;
}
else if (e.KeyCode == Keys.Right && enableArrows)
{
Selection.MoveActiveCell(0, 1);
e.Handled = true;
}
else if (e.KeyCode == Keys.Left && enableArrows)
{
Selection.MoveActiveCell(0, -1);
e.Handled = true;
}
else if (e.KeyCode == Keys.Tab && enableTab)
{
//If the tab failed I automatically select the next control in the form (SelectNextControl)
if (e.Modifiers == Keys.Shift) // backward
{
if (Selection.MoveActiveCell(0, -1, -1, int.MaxValue) == false)
FindForm().SelectNextControl(this, false, true, true, true);
e.Handled = true;
}
else //forward
{
if (Selection.MoveActiveCell(0, 1, 1, int.MinValue) == false)
FindForm().SelectNextControl(this, true, true, true, true);
e.Handled = true;
}
}
else if ( (e.KeyCode == Keys.PageUp || e.KeyCode == Keys.PageDown)
&& enablePageDownUp)
{
Point focusPoint = PositionToRectangle(Selection.ActivePosition).Location;
focusPoint.Offset(1, 1); //in modo da entrare nella cella
if (e.KeyCode == Keys.PageDown)
CustomScrollPageDown();
else if (e.KeyCode == Keys.PageUp)
CustomScrollPageUp();
Position newPosition = PositionAtPoint(focusPoint);
if (Selection.CanReceiveFocus(newPosition))
Selection.Focus(newPosition, true);
e.Handled = true;
}
#endregion
#region Clipboard
bool pasteEnabled = (ClipboardMode & ClipboardMode.Paste) == ClipboardMode.Paste;
bool copyEnabled = (ClipboardMode & ClipboardMode.Copy) == ClipboardMode.Copy;
bool cutEnabled = (ClipboardMode & ClipboardMode.Cut) == ClipboardMode.Cut;
bool deleteEnabled = (ClipboardMode & ClipboardMode.Delete) == ClipboardMode.Delete;
RangeRegion selRegion = Selection.GetSelectionRegion();
//Paste
if (e.Control && e.KeyCode == Keys.V && pasteEnabled && selRegion.IsEmpty() == false)
{
RangeData rngData = RangeData.ClipboardGetData();
if (rngData != null)
{
Range rng = selRegion.GetRanges()[0];
Range destinationRange = rngData.FindDestinationRange(this, rng.Start);
rngData.WriteData(this, destinationRange);
e.Handled = true;
Selection.ResetSelection(true);
Selection.SelectRange(destinationRange, true);
}
}
//Copy
else if (e.Control && e.KeyCode == Keys.C && copyEnabled && selRegion.IsEmpty() == false)
{
Range rng = selRegion.GetRanges()[0];
RangeData data = new RangeData();
data.LoadData(this, rng, rng.Start, CutMode.None);
RangeData.ClipboardSetData(data);
e.Handled = true;
}
//Cut
else if (e.Control && e.KeyCode == Keys.X && cutEnabled && selRegion.IsEmpty() == false)
{
Range rng = selRegion.GetRanges()[0];
RangeData data = new RangeData();
data.LoadData(this, rng, rng.Start, CutMode.CutImmediately);
RangeData.ClipboardSetData(data);
e.Handled = true;
}
//Delete
else if (e.KeyCode == Keys.Delete && deleteEnabled)
{
ClearValues(selRegion);
e.Handled = true;
}
#endregion
}
/// <summary>
/// Get a RangeData object from the clipboard. Return null if the clipboard doesn't contains valid data formats.
/// </summary>
/// <returns></returns>
public static RangeData ClipboardGetData()
{
System.Windows.Forms.IDataObject dtObj = System.Windows.Forms.Clipboard.GetDataObject();
RangeData rngData = null;
if (dtObj.GetDataPresent(RANGEDATA_FORMAT))
rngData = (RangeData)dtObj.GetData(RANGEDATA_FORMAT);
// if RANGEDATA_FORMAT or GetData returns null use string buffer as rngData
if (rngData == null)
{
// get unicode text instead of text
if (dtObj.GetDataPresent(System.Windows.Forms.DataFormats.UnicodeText, true))
{
string buffer = (string)dtObj.GetData(System.Windows.Forms.DataFormats.UnicodeText, true);
rngData = new RangeData();
rngData.LoadData(buffer);
}
}
return rngData;
}
