//
public void ClearImg(bool pushToUndoStack = true)
{
PropertyMementos mementos = CreateNewPropertyMementos();
mementos.AddPropertyMemento(new PropertyMemento("ItemHeight", ItemHeight, ItemHeight));
mementos.AddPropertyMemento(new PropertyMemento("ItemWidth", ItemWidth, ItemWidth));
mementos.AddPropertyMemento(new PropertyMemento("Opacity", Opacity, Opacity));
ClearImageCommand imgCmd = new ClearImageCommand(this, _imageStream, _isAutosize);
//reader = File.OpenRead(openFile.FileName);
_nailStream = null;
_imageStream = null;
(_model as ImageModel).ImageStream = _imageStream;
BackgroundShow = Visibility.Visible;
Opacity = 1;
FirePropertyChanged("ImgSource");
CreateNailStreamAndShow();
if (pushToUndoStack && CurrentUndoManager != null)
{
mementos.SetPropertyNewValue("ItemHeight", ItemHeight);
mementos.SetPropertyNewValue("ItemWidth", ItemWidth);
mementos.SetPropertyNewValue("Opacity", Opacity);
PropertyChangeCommand propCmd = new PropertyChangeCommand(this, mementos);
UndoCompositeCommand cmds = new UndoCompositeCommand();
cmds.AddCommand(imgCmd);
cmds.AddCommand(propCmd);
cmds.DeselectAllWidgetsFirst();
CurrentUndoManager.Push(cmds);
}
}
private void CreateImageFromPath(string path)
{
Stream oldStream;
if (_imageStream != null)
{
oldStream = new MemoryStream((int)_imageStream.Length);
_imageStream.Seek(0, SeekOrigin.Begin);
_imageStream.CopyTo(oldStream);
oldStream.Seek(0, SeekOrigin.Begin);
}
else
{
oldStream = null;
}
bool isAutosizeOldValue = _isAutosize;
PropertyMementos mementos = CreateNewPropertyMementos();
mementos.AddPropertyMemento(new PropertyMemento("ItemHeight", ItemHeight, ItemHeight));
mementos.AddPropertyMemento(new PropertyMemento("ItemWidth", ItemWidth, ItemWidth));
_isAutosize = true;
try
{
//reader = File.OpenRead(openFile.FileName);
_imageStream = new MemoryStream(File.ReadAllBytes(path));
(_model as ImageModel).ImageStream = _imageStream;
// Get ImgSource so that ItemHeight and ItemWidth have the actual size value of the new image.
// Here, FirePropertyChanged("ImgSource"); will not go into ImgSource get method when dragging a image file
// on canvas, this cause hight and width are not updated to actual image size.
// FirePropertyChanged("ImgSource") works well when importing image via file dialog, I don't know why
// it doesn't work when dragging.
// This is a workaround, remove this when you figure out the root cause.
// ImageSource temp = ImgSource;
FirePropertyChanged("ImgSource");
if (CurrentUndoManager != null)
{
mementos.SetPropertyNewValue("ItemHeight", ItemHeight);
mementos.SetPropertyNewValue("ItemWidth", ItemWidth);
PropertyChangeCommand propCmd = new PropertyChangeCommand(this, mementos);
ImportImageCommand imgCmd = new ImportImageCommand(this, oldStream, _imageStream, isAutosizeOldValue, _isAutosize);
UndoCompositeCommand cmds = new UndoCompositeCommand();
cmds.AddCommand(imgCmd);
cmds.AddCommand(propCmd);
cmds.DeselectAllWidgetsFirst();
CurrentUndoManager.Push(cmds);
}
}
catch (Exception e)
{
MessageBox.Show(e.Message, GlobalData.FindResource("Common_Error"), MessageBoxButton.OK, MessageBoxImage.Error);
}
}