public override void Undo()
{
// maintain the current scaling setting after the operation
double scale = PintaCore.Workspace.Scale;
Size swap = PintaCore.Workspace.ImageSize;
PintaCore.Workspace.ImageSize = old_size;
PintaCore.Workspace.CanvasSize = old_size;
old_size = swap;
base.Undo();
if (RestoreSelection != null)
{
DocumentSelection old = PintaCore.Workspace.ActiveDocument.Selection;
PintaCore.Workspace.ActiveDocument.Selection = RestoreSelection.Clone();
if (old != null)
{
old.DisposeSelection();
}
PintaCore.Layers.ShowSelection = true;
}
else
{
PintaCore.Layers.ResetSelectionPath();
}
PintaCore.Workspace.Invalidate();
PintaCore.Workspace.Scale = scale;
}
public override void Undo()
{
// maintain the current scaling setting after the operation
double scale = PintaCore.Workspace.Scale;
Size swap = PintaCore.Workspace.ImageSize;
var window = PintaCore.Workspace.ActiveWorkspace.Canvas.GdkWindow;
window.FreezeUpdates();
PintaCore.Workspace.ImageSize = old_size;
PintaCore.Workspace.CanvasSize = old_size;
old_size = swap;
base.Undo();
if (RestoreSelection != null)
{
DocumentSelection old = PintaCore.Workspace.ActiveDocument.Selection;
PintaCore.Workspace.ActiveDocument.Selection = RestoreSelection.Clone();
if (old != null)
{
old.Dispose();
}
}
else
{
PintaCore.Layers.ResetSelectionPath();
}
PintaCore.Workspace.Invalidate();
PintaCore.Workspace.Scale = scale;
PintaCore.Actions.View.UpdateCanvasScale();
window.ThawUpdates();
}
/// <summary>
/// Pastes an image from the clipboard.
/// </summary>
/// <param name="toNewLayer">Set to TRUE to paste into a
/// new layer. Otherwise, will paste to the current layer.</param>
/// <param name="x">Optional. Location within image to paste to.
/// Position will be adjusted if pasted image would hang
/// over right or bottom edges of canvas.</param>
/// <param name="y">Optional. Location within image to paste to.
/// Position will be adjusted if pasted image would hang
/// over right or bottom edges of canvas.</param>
public void Paste(bool toNewLayer, int x = 0, int y = 0)
{
// Create a compound history item for recording several
// operations so that they can all be undone/redone together.
CompoundHistoryItem paste_action;
if (toNewLayer)
{
paste_action = new CompoundHistoryItem(Stock.Paste, Catalog.GetString("Paste Into New Layer"));
}
else
{
paste_action = new CompoundHistoryItem(Stock.Paste, Catalog.GetString("Paste"));
}
Gtk.Clipboard cb = Gtk.Clipboard.Get(Gdk.Atom.Intern("CLIPBOARD", false));
// See if the current tool wants to handle the paste
// operation (e.g., the text tool could paste text)
if (!toNewLayer)
{
if (PintaCore.Tools.CurrentTool.TryHandlePaste(cb))
{
return;
}
}
PintaCore.Tools.Commit();
Path p;
// Don't dispose this, as we're going to give it to the history
Gdk.Pixbuf cbImage = cb.WaitForImage();
if (cbImage == null)
{
ShowClipboardEmptyDialog();
return;
}
Gdk.Size canvas_size = PintaCore.Workspace.ImageSize;
// If the image being pasted is larger than the canvas size, allow the user to optionally resize the canvas
if (cbImage.Width > canvas_size.Width || cbImage.Height > canvas_size.Height)
{
ResponseType response = ShowExpandCanvasDialog();
if (response == ResponseType.Accept)
{
PintaCore.Workspace.ResizeCanvas(cbImage.Width, cbImage.Height,
Pinta.Core.Anchor.Center, paste_action);
PintaCore.Actions.View.UpdateCanvasScale();
}
else if (response == ResponseType.Cancel || response == ResponseType.DeleteEvent)
{
return;
}
}
// If the pasted image would fall off bottom- or right-
// side of image, adjust paste position
x = Math.Max(0, Math.Min(x, canvas_size.Width - cbImage.Width));
y = Math.Max(0, Math.Min(y, canvas_size.Height - cbImage.Height));
// If requested, create a new layer, make it the current
// layer and record it's creation in the history
if (toNewLayer)
{
UserLayer l = AddNewLayer(string.Empty);
SetCurrentUserLayer(l);
paste_action.Push(new AddLayerHistoryItem("Menu.Layers.AddNewLayer.png", Catalog.GetString("Add New Layer"), UserLayers.IndexOf(l)));
}
// Copy the paste to the temp layer, which should be at least the size of this document.
CreateSelectionLayer(Math.Max(ImageSize.Width, cbImage.Width),
Math.Max(ImageSize.Height, cbImage.Height));
ShowSelectionLayer = true;
using (Cairo.Context g = new Cairo.Context(SelectionLayer.Surface))
{
g.DrawPixbuf(cbImage, new Cairo.Point(0, 0));
p = g.CreateRectanglePath(new Cairo.Rectangle(x, y, cbImage.Width, cbImage.Height));
}
SelectionLayer.Transform.InitIdentity();
SelectionLayer.Transform.Translate(x, y);
PintaCore.Tools.SetCurrentTool(Catalog.GetString("Move Selected Pixels"));
DocumentSelection old_selection = Selection.Clone();
bool old_show_selection = ShowSelection;
Selection.SelectionPath = p;
Selection.SelectionPolygons.Clear();
ShowSelection = true;
Workspace.Invalidate();
paste_action.Push(new PasteHistoryItem(cbImage, old_selection, old_show_selection));
History.PushNewItem(paste_action);
}