private void Activated(object sender, EventArgs e)
{
Gtk.Clipboard cb = Gtk.Clipboard.Get(Gdk.Atom.Intern("CLIPBOARD", false));
if (PintaCore.Tools.CurrentTool.TryHandlePaste(cb))
{
return;
}
Document doc = PintaCore.Workspace.ActiveDocument;
PintaCore.Tools.Commit();
Path p;
// Don't dispose this, as we're going to give it to the history
Gdk.Pixbuf image = cb.WaitForImage();
if (image == null)
{
Dialogs.ClipboardEmptyDialog.Show();
return;
}
Gdk.Size canvas_size = PintaCore.Workspace.ImageSize;
// Merge the (optional) canvas resize and the pasted image into a single history item.
var paste_action = new CompoundHistoryItem(Stock.Paste, Catalog.GetString("Paste"));
// If the image being pasted is larger than the canvas size, allow the user to optionally resize the canvas
if (image.Width > canvas_size.Width || image.Height > canvas_size.Height)
{
ResponseType response = ShowExpandCanvasDialog();
if (response == ResponseType.Accept)
{
PintaCore.Workspace.ResizeCanvas(image.Width, image.Height,
Pinta.Core.Anchor.Center, paste_action);
PintaCore.Actions.View.UpdateCanvasScale();
}
else if (response == ResponseType.Cancel || response == ResponseType.DeleteEvent)
{
return;
}
}
// Copy the paste to the temp layer
doc.CreateSelectionLayer();
doc.ShowSelectionLayer = true;
using (Cairo.Context g = new Cairo.Context(doc.SelectionLayer.Surface))
{
g.DrawPixbuf(image, new Cairo.Point(0, 0));
p = g.CreateRectanglePath(new Rectangle(0, 0, image.Width, image.Height));
}
PintaCore.Tools.SetCurrentTool(Catalog.GetString("Move Selected Pixels"));
DocumentSelection old_selection = doc.Selection.Clone();
bool old_show_selection = doc.ShowSelection;
doc.Selection.SelectionPath = p;
doc.Selection.SelectionPolygons.Clear();
doc.ShowSelection = true;
doc.Workspace.Invalidate();
paste_action.Push(new PasteHistoryItem(image, old_selection, old_show_selection));
doc.History.PushNewItem(paste_action);
}
/// <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 static void Paste(Document doc, 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.
var history_text = toNewLayer ? Translations.GetString("Paste Into New Layer") : Translations.GetString("Paste");
var paste_action = new CompoundHistoryItem(Resources.StandardIcons.EditPaste, history_text);
var cb = 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.DoHandlePaste(doc, cb))
{
return;
}
}
// Commit any unfinished tool actions
PintaCore.Tools.Commit();
// Don't dispose this, as we're going to give it to the history
Gdk.Pixbuf?cbImage = null;
if (cb.WaitIsImageAvailable())
{
cbImage = cb.WaitForImage();
}
if (cbImage is null)
{
ShowClipboardEmptyDialog();
return;
}
var 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)
{
var response = ShowExpandCanvasDialog();
if (response == ResponseType.Accept)
{
var new_width = Math.Max(canvas_size.Width, cbImage.Width);
var new_height = Math.Max(canvas_size.Height, cbImage.Height);
PintaCore.Workspace.ResizeCanvas(new_width, new_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)
{
var l = doc.Layers.AddNewLayer(string.Empty);
doc.Layers.SetCurrentUserLayer(l);
paste_action.Push(new AddLayerHistoryItem(Resources.Icons.LayerNew, Translations.GetString("Add New Layer"), doc.Layers.IndexOf(l)));
}
// Copy the paste to the temp layer, which should be at least the size of this document.
doc.Layers.CreateSelectionLayer(Math.Max(doc.ImageSize.Width, cbImage.Width),
Math.Max(doc.ImageSize.Height, cbImage.Height));
doc.Layers.ShowSelectionLayer = true;
using (var g = new Cairo.Context(doc.Layers.SelectionLayer.Surface))
g.DrawPixbuf(cbImage, new Cairo.Point(0, 0));
doc.Layers.SelectionLayer.Transform.InitIdentity();
doc.Layers.SelectionLayer.Transform.Translate(x, y);
PintaCore.Tools.SetCurrentTool("MoveSelectedTool");
var old_selection = doc.Selection.Clone();
doc.Selection.CreateRectangleSelection(new Cairo.Rectangle(x, y, cbImage.Width, cbImage.Height));
doc.Selection.Visible = true;
doc.Workspace.Invalidate();
paste_action.Push(new PasteHistoryItem(cbImage, old_selection));
doc.History.PushNewItem(paste_action);
}