private HistoryMemento DoCanvasResize(DocumentWorkspace documentWorkspace, Size newLayerSize)
{
HistoryMemento retHA;
int layerIndex = documentWorkspace.ActiveLayerIndex;
Size newSize = new Size(Math.Max(newLayerSize.Width, documentWorkspace.Document.Width),
Math.Max(newLayerSize.Height, documentWorkspace.Document.Height));
Document newDoc;
try
{
using (new WaitCursorChanger(documentWorkspace))
{
Utility.GCFullCollect();
newDoc = CanvasSizeAction.ResizeDocument(documentWorkspace.Document, newSize,
AnchorEdge.TopLeft, documentWorkspace.AppWorkspace.AppEnvironment.SecondaryColor);
}
}
catch (OutOfMemoryException)
{
Utility.ErrorBox(documentWorkspace, PdnResources.GetString("ImportFromFileAction.AskForCanvasResize.OutOfMemory"));
newDoc = null;
}
if (newDoc == null)
{
retHA = null;
}
else
{
retHA = new ReplaceDocumentHistoryMemento(string.Empty, null, documentWorkspace);
using (new WaitCursorChanger(documentWorkspace))
{
documentWorkspace.Document = newDoc;
}
documentWorkspace.ActiveLayer = (Layer)documentWorkspace.Document.Layers[layerIndex];
}
return(retHA);
}
/// <summary>
/// Pastes from the clipboard into the document.
/// </summary>
/// <returns>true if the paste operation completed, false if there was an error or if it was cancelled for some reason</returns>
public bool PerformAction()
{
SurfaceForClipboard surfaceForClipboard = null;
IDataObject clipData = null;
try
{
Utility.GCFullCollect();
clipData = Clipboard.GetDataObject();
}
catch (ExternalException)
{
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.TransferFromClipboard"));
return(false);
}
catch (OutOfMemoryException)
{
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.OutOfMemory"));
return(false);
}
// First "ask" the current tool if it wants to handle it
bool handledByTool = false;
if (this.documentWorkspace.Tool != null)
{
this.documentWorkspace.Tool.PerformPaste(clipData, out handledByTool);
}
if (handledByTool)
{
return(true);
}
if (clipData.GetDataPresent(typeof(SurfaceForClipboard)))
{
try
{
Utility.GCFullCollect();
surfaceForClipboard = clipData.GetData(typeof(SurfaceForClipboard)) as SurfaceForClipboard;
}
catch (OutOfMemoryException)
{
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.OutOfMemory"));
return(false);
}
}
if (surfaceForClipboard != null && surfaceForClipboard.MaskedSurface.IsDisposed)
{
// Have been getting crash reports where sfc contains a disposed MaskedSurface ...
surfaceForClipboard = null;
}
if (surfaceForClipboard == null &&
(clipData.GetDataPresent(DataFormats.Bitmap, true) || clipData.GetDataPresent(DataFormats.EnhancedMetafile, true)))
{
Image image;
try
{
Utility.GCFullCollect();
image = clipData.GetData(DataFormats.Bitmap, true) as Image;
if (image == null)
{
image = SystemLayer.Clipboard.GetEmfFromClipboard(this.documentWorkspace);
}
}
catch (OutOfMemoryException)
{
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.OutOfMemory"));
return(false);
}
// Sometimes we get weird errors if we're in, say, 16-bit mode but the image was copied
// to the clipboard in 32-bit mode
if (image == null)
{
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.NotRecognized"));
return(false);
}
MaskedSurface maskedSurface = null;
try
{
Utility.GCFullCollect();
Bitmap bitmap;
Surface surface = null;
if (image is Bitmap)
{
bitmap = (Bitmap)image;
image = null;
}
else
{
bitmap = new Bitmap(image);
image.Dispose();
image = null;
}
surface = Surface.CopyFromBitmap(bitmap);
bitmap.Dispose();
bitmap = null;
maskedSurface = new MaskedSurface(surface, new PdnRegion(surface.Bounds));
surface.Dispose();
surface = null;
}
catch (Exception)
{
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.OutOfMemory"));
return(false);
}
surfaceForClipboard = new SurfaceForClipboard(maskedSurface);
}
if (surfaceForClipboard == null || surfaceForClipboard.MaskedSurface == null)
{
// silently fail: like what if a program overwrote the clipboard in between the time
// we enabled the "Paste" menu item and the user actually clicked paste?
// it could happen!
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("PasteAction.Error.NoImage"));
return(false);
}
// If the image is larger than the document, ask them if they'd like to make the image larger first
Rectangle bounds = surfaceForClipboard.Bounds;
if (bounds.Width > this.documentWorkspace.Document.Width ||
bounds.Height > this.documentWorkspace.Document.Height)
{
Surface thumb;
try
{
using (new WaitCursorChanger(this.documentWorkspace))
{
thumb = CreateThumbnail(surfaceForClipboard);
}
}
catch (OutOfMemoryException)
{
thumb = null;
}
DialogResult dr = ShowExpandCanvasTaskDialog(this.documentWorkspace, thumb);
int layerIndex = this.documentWorkspace.ActiveLayerIndex;
switch (dr)
{
case DialogResult.Yes:
Size newSize = new Size(Math.Max(bounds.Width, this.documentWorkspace.Document.Width),
Math.Max(bounds.Height, this.documentWorkspace.Document.Height));
Document newDoc = CanvasSizeAction.ResizeDocument(
this.documentWorkspace.Document,
newSize,
AnchorEdge.TopLeft,
this.documentWorkspace.AppWorkspace.AppEnvironment.SecondaryColor);
if (newDoc == null)
{
return(false); // user clicked cancel!
}
else
{
HistoryMemento rdha = new ReplaceDocumentHistoryMemento(
CanvasSizeAction.StaticName,
CanvasSizeAction.StaticImage,
this.documentWorkspace);
this.documentWorkspace.Document = newDoc;
this.documentWorkspace.History.PushNewMemento(rdha);
this.documentWorkspace.ActiveLayer = (Layer)this.documentWorkspace.Document.Layers[layerIndex];
}
break;
case DialogResult.No:
break;
case DialogResult.Cancel:
return(false);
default:
throw new InvalidEnumArgumentException("Internal error: DialogResult was neither Yes, No, nor Cancel");
}
}
// Decide where to paste to: If the paste is within bounds of the document, do as normal
// Otherwise, center it.
Rectangle docBounds = this.documentWorkspace.Document.Bounds;
Rectangle intersect1 = Rectangle.Intersect(docBounds, bounds);
bool doMove = intersect1 != bounds; //intersect1.IsEmpty;
Point pasteOffset;
if (doMove)
{
pasteOffset = new Point(-bounds.X + (docBounds.Width / 2) - (bounds.Width / 2),
-bounds.Y + (docBounds.Height / 2) - (bounds.Height / 2));
}
else
{
pasteOffset = new Point(0, 0);
}
// Paste to the place it was originally copied from (for PDN-to-PDN transfers)
// and then if its not pasted within the viewable rectangle we pan to that location
RectangleF visibleDocRectF = this.documentWorkspace.VisibleDocumentRectangleF;
Rectangle visibleDocRect = Utility.RoundRectangle(visibleDocRectF);
Rectangle bounds2 = new Rectangle(new Point(bounds.X + pasteOffset.X, bounds.Y + pasteOffset.Y), bounds.Size);
Rectangle intersect2 = Rectangle.Intersect(bounds2, visibleDocRect);
bool doPan = intersect2.IsEmpty;
this.documentWorkspace.SetTool(null);
this.documentWorkspace.SetToolFromType(typeof(MoveTool));
((MoveTool)this.documentWorkspace.Tool).PasteMouseDown(surfaceForClipboard, pasteOffset);
if (doPan)
{
Point centerPtView = new Point(visibleDocRect.Left + (visibleDocRect.Width / 2),
visibleDocRect.Top + (visibleDocRect.Height / 2));
Point centerPtPasted = new Point(bounds2.Left + (bounds2.Width / 2),
bounds2.Top + (bounds2.Height / 2));
Size delta = new Size(centerPtPasted.X - centerPtView.X,
centerPtPasted.Y - centerPtView.Y);
PointF docScrollPos = this.documentWorkspace.DocumentScrollPositionF;
PointF newDocScrollPos = new PointF(docScrollPos.X + delta.Width,
docScrollPos.Y + delta.Height);
this.documentWorkspace.DocumentScrollPositionF = newDocScrollPos;
}
return(true);
}
private HistoryMemento ImportOneLayer(DocumentWorkspace documentWorkspace, BitmapLayer layer)
{
HistoryMemento retHA;
List <HistoryMemento> historyMementos = new List <HistoryMemento>();
bool success = true;
if (success)
{
if (!documentWorkspace.Selection.IsEmpty)
{
HistoryMemento ha = new DeselectFunction().Execute(documentWorkspace);
historyMementos.Add(ha);
}
}
if (success)
{
if (layer.Width > documentWorkspace.Document.Width ||
layer.Height > documentWorkspace.Document.Height)
{
HistoryMemento ha = DoCanvasResize(documentWorkspace, layer.Size);
if (ha == null)
{
success = false;
}
else
{
historyMementos.Add(ha);
}
}
}
if (success)
{
if (layer.Size != documentWorkspace.Document.Size)
{
BitmapLayer newLayer;
try
{
using (new WaitCursorChanger(documentWorkspace))
{
Utility.GCFullCollect();
newLayer = CanvasSizeAction.ResizeLayer((BitmapLayer)layer, documentWorkspace.Document.Size,
AnchorEdge.TopLeft, ColorBgra.White.NewAlpha(0));
}
}
catch (OutOfMemoryException)
{
Utility.ErrorBox(documentWorkspace, PdnResources.GetString("ImportFromFileAction.ImportOneLayer.OutOfMemory"));
success = false;
newLayer = null;
}
if (newLayer != null)
{
layer.Dispose();
layer = newLayer;
}
}
}
if (success)
{
NewLayerHistoryMemento nlha = new NewLayerHistoryMemento(string.Empty, null, documentWorkspace, documentWorkspace.Document.Layers.Count);
documentWorkspace.Document.Layers.Add(layer);
historyMementos.Add(nlha);
}
if (success)
{
HistoryMemento[] has = historyMementos.ToArray();
retHA = new CompoundHistoryMemento(string.Empty, null, has);
}
else
{
Rollback(historyMementos);
retHA = null;
}
return(retHA);
}
