/// <summary>
/// Change to the ink mode with an eraser setting.
/// </summary>
/// <param name="editingModeId"></param>
private void ChangeToEraseMode(EditingModeId editingModeId)
{
switch (editingModeId)
{
case EditingModeId.PointEraser1:
case EditingModeId.PointEraser2:
case EditingModeId.PointEraser3:
{
// Change to the point erase mode
StylusShape newSS = PointEraserShapeCollection[editingModeId - EditingModeId.PointEraser1];
ChangeToPointErase(newSS);
break;
}
case EditingModeId.StrokeEraser:
{
// Change to the stroke erase mode
EnsureEditingMode(InkCanvasEditingMode.EraseByStroke);
break;
}
}
// Update the readonly dependency property.
SetValue(SampleWindow.CurrentEraserModePropertyKey, editingModeId);
}
public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
{
if (values == null || values.Length == 0)
{
return(null);
}
for (int i = 0, count = values.Length; i < count; i++)
{
// Some source binding could have no value being set yet. If it's the case, return UnsetValue
// to indicate no value produced by the converter.
if (values[i] == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
}
// Get the active pen or highlighter id
EditingModeId currentActivePenOrHighlighterModeId = (EditingModeId)(values[0]);
// Get the collection.
ObservableCollection <DrawingAttributes> predefinedDrawingAttributes = values[1] as ObservableCollection <DrawingAttributes>;
// Return the DrawingAttributes object.
return(predefinedDrawingAttributes[(int)currentActivePenOrHighlighterModeId]);
}
/// <summary>
/// A class handler which handles the various commands.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private static void OnExecutedCommands(object sender, ExecutedRoutedEventArgs e)
{
SampleWindow myWindow = (SampleWindow)sender;
if (e.Command == ApplicationCommands.Close)
{
// Close the main window.
myWindow.Close();
}
else if (e.Command == SampleWindow.ClearCommand)
{
// Clear the current strokes.
myWindow.ClearStrokes();
}
else if (e.Command == SampleWindow.EditingCommand)
{
EditingModeId newEditingMode = (EditingModeId)e.Parameter;
if (newEditingMode == EditingModeId.CurrentPen)
{
// The Pen toolbar button is clicked.
// We will switch to the mode with the active pen setting.
newEditingMode = myWindow.CurrentPenMode;
}
else if (newEditingMode == EditingModeId.CurrentHighlighter)
{
// The Highlighter toolbar button is clicked.
// We will switch to the mode with the active highlighter setting.
newEditingMode = myWindow.CurrentHighlighterMode;
}
else if (newEditingMode == EditingModeId.CurrentEraser)
{
// The Eraser toolbar button is clicked.
// We will switch to the mode with the active eraser setting.
newEditingMode = myWindow.CurrentEraserMode;
}
// Switch to the specified mode.
myWindow.EditingMode = newEditingMode;
}
else if (e.Command == SampleWindow.OptionCommand)
{
// Switch to the specified ink mode (Ink, GestureOnly or InkAndGesture).
myWindow.ChangeInkModeOption((OptionId)e.Parameter);
}
else if (e.Command == ApplicationCommands.Undo)
{
myWindow.Undo(sender, e);
}
else if (e.Command == ApplicationCommands.Redo)
{
myWindow.Redo(sender, e);
}
}
/// <summary>
/// Change the editing mode.
/// </summary>
/// <param name="editingModeId"></param>
private void ChangeEditingMode(EditingModeId editingModeId)
{
switch (editingModeId)
{
case EditingModeId.Pen1:
case EditingModeId.Pen2:
case EditingModeId.Pen3:
case EditingModeId.Pen4:
case EditingModeId.Pen5:
case EditingModeId.Highlighter1:
case EditingModeId.Highlighter2:
case EditingModeId.Highlighter3:
case EditingModeId.Highlighter4:
case EditingModeId.Highlighter5:
{
// Change to the ink mode with the correct pen or highlighter setting.
ChangeToInkMode(editingModeId);
break;
}
case EditingModeId.PointEraser1:
case EditingModeId.PointEraser2:
case EditingModeId.PointEraser3:
case EditingModeId.StrokeEraser:
{
// Change to the erase mode with the correct eraser.
ChangeToEraseMode(editingModeId);
break;
}
case EditingModeId.SelectionTool:
{
// Change to the select mode.
EnsureEditingMode(InkCanvasEditingMode.Select);
break;
}
case EditingModeId.None:
{
// Change to the none mode.
EnsureEditingMode(InkCanvasEditingMode.None);
break;
}
}
}
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value == null)
{
return(null);
}
// Get the pre-defined DrawingAttributes collection
ObservableCollection <DrawingAttributes> predefinedDrawingAttributes = value as ObservableCollection <DrawingAttributes>;
// Get the pen/highlighter id associated to this control.
EditingModeId expectedEditingModeId = (EditingModeId)parameter;
if (expectedEditingModeId >= EditingModeId.Pen1 && expectedEditingModeId <= EditingModeId.Highlighter5)
{
// return the specified DrawingAttributes
return(predefinedDrawingAttributes[(int)expectedEditingModeId]);
}
return(null);
}
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
if (value == null)
{
return(null);
}
// Get the bound property value.
EditingModeId currentEditingModeId = (EditingModeId)value;
// Get the id which the control expects
EditingModeId expectedEditingModeId = (EditingModeId)parameter;
if (expectedEditingModeId == currentEditingModeId)
{
// Returns true if the two values are same.
return(true);
}
else if (expectedEditingModeId == EditingModeId.CurrentPen &&
(currentEditingModeId >= EditingModeId.Pen1 && currentEditingModeId <= EditingModeId.Pen5))
{
// The pen toolbar button should be checked whenever any pen mode is active.
return(true);
}
else if (expectedEditingModeId == EditingModeId.CurrentHighlighter &&
(currentEditingModeId >= EditingModeId.Highlighter1 && currentEditingModeId <= EditingModeId.Highlighter5))
{
// The highlighter toolbar button should be checked whenever any highlighter mode is active.
return(true);
}
else if (expectedEditingModeId == EditingModeId.CurrentEraser &&
((currentEditingModeId >= EditingModeId.PointEraser1 && currentEditingModeId <= EditingModeId.PointEraser3) ||
currentEditingModeId == EditingModeId.StrokeEraser))
{
// The eraser toolbar button should be checked whenever any eraser mode is active.
return(true);
}
return(false);
}
/// <summary>
/// Change to the ink mode with a pen/highlighter setting.
/// </summary>
/// <param name="editingModeId"></param>
private void ChangeToInkMode(EditingModeId editingModeId)
{
// Ensure the ink Mode based on the current option.
InkCanvasEditingMode currentInkMode = _inkModeOptions[CurrentInkModeOption - OptionId.InkAndGesture];
EnsureEditingMode(currentInkMode);
// Get the Drawing Attributes which is associated to the pen/highlighter setting.
// Then update the InkCanvas' DefaultDrawingAttributes property.
DrawingAttributes da = DrawingAttributesCollection[editingModeId - EditingModeId.Pen1];
MyInkCanvas.DefaultDrawingAttributes = da;
// Update the read-only DependencyProperties so that the UI can react to the change correspondingly.
if (editingModeId >= EditingModeId.Pen1 && editingModeId <= EditingModeId.Pen5)
{
SetValue(SampleWindow.CurrentPenModePropertyKey, editingModeId);
}
else if (editingModeId >= EditingModeId.Highlighter1 && editingModeId <= EditingModeId.Highlighter5)
{
SetValue(SampleWindow.CurrentHighlighterModePropertyKey, editingModeId);
}
}
