protected override void OnLift(MouseEventArgs e)
{
PdnGraphicsPath liftPath = Selection.CreatePath();
PdnRegion liftRegion = Selection.CreateRegion();
this.ourContext.LiftedPixels = new MaskedSurface(activeLayer.Surface, liftPath);
HistoryMemento bitmapAction = new BitmapHistoryMemento(
Name,
Image,
DocumentWorkspace,
ActiveLayerIndex,
this.ourContext.poLiftedPixelsGuid);
this.currentHistoryMementos.Add(bitmapAction);
// If the user is holding down the control key, we want to *copy* the pixels
// and not "lift and erase"
if ((ModifierKeys & Keys.Control) == Keys.None)
{
ColorBgra fill = AppEnvironment.SecondaryColor;
fill.A = 0;
UnaryPixelOp op = new UnaryPixelOps.Constant(fill);
op.Apply(this.renderArgs.Surface, liftRegion);
}
liftRegion.Dispose();
liftRegion = null;
liftPath.Dispose();
liftPath = null;
}
protected override SegmentedList <PointDouble> CreateShape(SegmentedList <PointDouble> tracePoints)
{
RectDouble num5;
PointDouble a = tracePoints[0];
PointDouble b = tracePoints[tracePoints.Count - 1];
PointDouble num3 = new PointDouble(b.X - a.X, b.Y - a.Y);
double num4 = Math.Sqrt((num3.X * num3.X) + (num3.Y * num3.Y));
if ((base.ModifierKeys & Keys.Shift) != Keys.None)
{
PointDouble center = new PointDouble((a.X + b.X) / 2.0, (a.Y + b.Y) / 2.0);
double num7 = num4 / 2.0;
num5 = RectDouble.FromCenter(center, (double)(num7 * 2.0));
}
else
{
num5 = RectDoubleUtil.FromPixelPoints(a, b);
}
PdnGraphicsPath path = new PdnGraphicsPath();
path.AddEllipse(num5.ToGdipRectangleF());
using (Matrix matrix = new Matrix())
{
path.Flatten(matrix, 0.1f);
}
SegmentedList <PointDouble> list = new SegmentedList <PointDouble>(path.PathPoints.Select <PointF, PointDouble>(pt => pt.ToDoublePoint()), 7);
path.Dispose();
return(list);
}
private static Surface CreateThumbnail(SurfaceForClipboard surfaceForClipboard)
{
const int thumbLength96dpi = 120;
int thumbSizeOurDpi = SystemLayer.UI.ScaleWidth(thumbLength96dpi);
Surface surface = surfaceForClipboard.MaskedSurface.SurfaceReadOnly;
PdnGraphicsPath maskPath = surfaceForClipboard.MaskedSurface.CreatePath();
Rectangle bounds = surfaceForClipboard.Bounds;
Surface thumb = CreateThumbnail(surface, maskPath, bounds, thumbSizeOurDpi);
maskPath.Dispose();
return(thumb);
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if (historyWorkspace.Selection.IsEmpty)
{
return(null);
}
else
{
SelectionHistoryMemento sha = new SelectionHistoryMemento(
StaticName,
StaticImage,
historyWorkspace);
//PdnGraphicsPath selectedPath = historyWorkspace.Selection.GetPathReadOnly();
PdnGraphicsPath selectedPath = historyWorkspace.Selection.CreatePath();
PdnGraphicsPath boundsOutline = new PdnGraphicsPath();
boundsOutline.AddRectangle(historyWorkspace.Document.Bounds);
PdnGraphicsPath clippedPath = PdnGraphicsPath.Combine(selectedPath, CombineMode.Intersect, boundsOutline);
PdnGraphicsPath invertedPath = PdnGraphicsPath.Combine(clippedPath, CombineMode.Xor, boundsOutline);
selectedPath.Dispose();
selectedPath = null;
clippedPath.Dispose();
clippedPath = null;
EnterCriticalRegion();
historyWorkspace.Selection.PerformChanging();
historyWorkspace.Selection.Reset();
historyWorkspace.Selection.SetContinuation(invertedPath, CombineMode.Replace, true);
historyWorkspace.Selection.CommitContinuation();
historyWorkspace.Selection.PerformChanged();
boundsOutline.Dispose();
boundsOutline = null;
return(sha);
}
}
public override HistoryMemento OnExecute(IHistoryWorkspace historyWorkspace)
{
if (historyWorkspace.Selection.IsEmpty)
{
return null;
}
else
{
SelectionHistoryMemento sha = new SelectionHistoryMemento(
StaticName,
StaticImage,
historyWorkspace);
//PdnGraphicsPath selectedPath = historyWorkspace.Selection.GetPathReadOnly();
PdnGraphicsPath selectedPath = historyWorkspace.Selection.CreatePath();
PdnGraphicsPath boundsOutline = new PdnGraphicsPath();
boundsOutline.AddRectangle(historyWorkspace.Document.Bounds);
PdnGraphicsPath clippedPath = PdnGraphicsPath.Combine(selectedPath, CombineMode.Intersect, boundsOutline);
PdnGraphicsPath invertedPath = PdnGraphicsPath.Combine(clippedPath, CombineMode.Xor, boundsOutline);
selectedPath.Dispose();
selectedPath = null;
clippedPath.Dispose();
clippedPath = null;
EnterCriticalRegion();
historyWorkspace.Selection.PerformChanging();
historyWorkspace.Selection.Reset();
historyWorkspace.Selection.SetContinuation(invertedPath, CombineMode.Replace, true);
historyWorkspace.Selection.CommitContinuation();
historyWorkspace.Selection.PerformChanged();
boundsOutline.Dispose();
boundsOutline = null;
return sha;
}
}
protected override List <PointF> CreateShape(List <Point> tracePoints)
{
Point a = tracePoints[0];
Point b = tracePoints[tracePoints.Count - 1];
Point dir = new Point(b.X - a.X, b.Y - a.Y);
float len = (float)Math.Sqrt(dir.X * dir.X + dir.Y * dir.Y);
RectangleF rectF;
if ((ModifierKeys & Keys.Shift) != 0)
{
PointF center = new PointF((float)(a.X + b.X) / 2.0f, (float)(a.Y + b.Y) / 2.0f);
float radius = len / 2;
rectF = Rectangle.Truncate(Utility.RectangleFromCenter(center, radius));
}
else
{
rectF = Utility.PointsToRectangle(a, b);
}
Rectangle rect = Utility.RoundRectangle(rectF);
PdnGraphicsPath path = new PdnGraphicsPath();
path.AddEllipse(rect);
// Avoid asymmetrical circles where the left or right side of the ellipse has a pixel jutting out
using (Matrix m = new Matrix())
{
m.Reset();
m.Translate(-0.5f, -0.5f, MatrixOrder.Append);
path.Transform(m);
}
path.Flatten(Utility.IdentityMatrix, 0.1f);
PointF[] pointsF = path.PathPoints;
path.Dispose();
return(new List <PointF>(pointsF));
}
protected override List<PointF> CreateShape(List<Point> tracePoints)
{
Point a = tracePoints[0];
Point b = tracePoints[tracePoints.Count - 1];
Point dir = new Point(b.X - a.X, b.Y - a.Y);
float len = (float)Math.Sqrt(dir.X * dir.X + dir.Y * dir.Y);
RectangleF rectF;
if ((ModifierKeys & Keys.Shift) != 0)
{
PointF center = new PointF((float)(a.X + b.X) / 2.0f, (float)(a.Y + b.Y) / 2.0f);
float radius = len / 2;
rectF = Rectangle.Truncate(Utility.RectangleFromCenter(center, radius));
}
else
{
rectF = Utility.PointsToRectangle(a, b);
}
Rectangle rect = Utility.RoundRectangle(rectF);
PdnGraphicsPath path = new PdnGraphicsPath();
path.AddEllipse(rect);
// Avoid asymmetrical circles where the left or right side of the ellipse has a pixel jutting out
using (Matrix m = new Matrix())
{
m.Reset();
m.Translate(-0.5f, -0.5f, MatrixOrder.Append);
path.Transform(m);
}
path.Flatten(Utility.IdentityMatrix, 0.1f);
PointF[] pointsF = path.PathPoints;
path.Dispose();
return new List<PointF>(pointsF);
}
private void OnMouseMoveImpl(MouseEventArgs e, StringBuilder sbLogger)
{
if (!this.tracking)
{
sbLogger.Append("1 ");
Cursor cursor = this.moveToolCursor;
for (int i = 0; i < this.moveNubs.Length; ++i)
{
sbLogger.Append("2 ");
MoveNubRenderer nub = this.moveNubs[i];
sbLogger.Append("3 ");
if (nub.Visible && nub.IsPointTouching(new Point(e.X, e.Y), true))
{
sbLogger.Append("4 ");
cursor = this.handCursor;
break;
}
}
this.Cursor = cursor;
sbLogger.Append("5 ");
}
else
{
sbLogger.Append("6 ");
if (this.context.currentMode != Mode.Translate)
{
sbLogger.Append("7 ");
this.Cursor = this.handCursorMouseDown;
}
sbLogger.Append("8 ");
Point newMouseXY = new Point(e.X, e.Y);
Point newOffset = new Point(newMouseXY.X - context.startMouseXY.X, newMouseXY.Y - context.startMouseXY.Y);
PreRender();
this.dontDrop = true;
sbLogger.Append("9 ");
Selection.PerformChanging();
using (Matrix translateMatrix = new Matrix())
{
RectangleF rect;
translateMatrix.Reset();
if (this.context.baseTransform != null)
{
Selection.SetInterimTransform(this.context.baseTransform);
}
Matrix interim = Selection.GetInterimTransformCopy();
switch (this.context.currentMode)
{
case Mode.Translate:
translateMatrix.Translate((float)newOffset.X, (float)newOffset.Y, MatrixOrder.Append);
break;
case Mode.Rotate:
rect = this.context.liftedBounds;
PointF center = new PointF(rect.X + (rect.Width / 2.0f), rect.Y + (rect.Height / 2.0f));
center = Utility.TransformOnePoint(interim, center);
double theta1 = Math.Atan2(context.startMouseXY.Y - center.Y, context.startMouseXY.X - center.X);
double theta2 = Math.Atan2(e.Y - center.Y, e.X - center.X);
double thetaDelta = theta2 - theta1;
this.angleDelta = (float)(thetaDelta * (180.0f / Math.PI));
float angle = this.context.startAngle + this.angleDelta;
if ((ModifierKeys & Keys.Shift) != 0)
{
angle = ConstrainAngle(angle);
angleDelta = angle - this.context.startAngle;
}
translateMatrix.RotateAt(angleDelta, center, MatrixOrder.Append);
this.rotateNub.Location = center;
this.rotateNub.Angle = this.context.startAngle + angleDelta;
break;
case Mode.Scale:
PointF xyAxes = GetEdgeVector(this.context.startEdge);
PointF xAxis = new PointF(xyAxes.X, 0);
PointF yAxis = new PointF(0, xyAxes.Y);
PointF edgeX = Utility.TransformOneVector(interim, xAxis);
PointF edgeY = Utility.TransformOneVector(interim, yAxis);
PointF edgeXN = Utility.NormalizeVector2(edgeX);
PointF edgeYN = Utility.NormalizeVector2(edgeY);
PointF xu;
float xulen;
PointF xv;
Utility.GetProjection((PointF)newOffset, edgeXN, out xu, out xulen, out xv);
PointF yu;
float yulen;
PointF yv;
Utility.GetProjection((PointF)newOffset, edgeYN, out yu, out yulen, out yv);
PdnGraphicsPath startPath2 = this.context.startPath.Clone();
RectangleF sp2Bounds = startPath2.GetBounds();
PointF sp2BoundsCenter = new PointF((sp2Bounds.Left + sp2Bounds.Right) / 2.0f,
(sp2Bounds.Top + sp2Bounds.Bottom) / 2.0f);
float tAngle = Utility.GetAngleOfTransform(interim);
bool isFlipped = Utility.IsTransformFlipped(interim);
using (Matrix spm = new Matrix())
{
spm.Reset();
spm.RotateAt(-tAngle, sp2BoundsCenter, MatrixOrder.Append);
translateMatrix.RotateAt(-tAngle, sp2BoundsCenter, MatrixOrder.Append);
startPath2.Transform(spm);
}
RectangleF spBounds2 = startPath2.GetBounds();
startPath2.Dispose();
startPath2 = null;
float xTranslate;
float yTranslate;
bool allowConstrain;
Edge theEdge = this.context.startEdge;
// If the transform is flipped, then GetTransformAngle will return 180 degrees
// even though no rotation has actually taken place. Thus we have to scratch
// our head and go "hmm, let's make some adjustments to this." Otherwise stretching
// the top and bottom nubs goes in the wrong direction.
if (isFlipped)
{
theEdge = FlipEdgeVertically(theEdge);
}
switch (theEdge)
{
default:
throw new InvalidEnumArgumentException();
case Edge.TopLeft:
allowConstrain = true;
xTranslate = -spBounds2.X - spBounds2.Width;
yTranslate = -spBounds2.Y - spBounds2.Height;
break;
case Edge.Top:
allowConstrain = false;
xTranslate = 0;
yTranslate = -spBounds2.Y - spBounds2.Height;
break;
case Edge.TopRight:
allowConstrain = true;
xTranslate = -spBounds2.X;
yTranslate = -spBounds2.Y - spBounds2.Height;
break;
case Edge.Left:
allowConstrain = false;
xTranslate = -spBounds2.X - spBounds2.Width;
yTranslate = 0;
break;
case Edge.Right:
allowConstrain = false;
xTranslate = -spBounds2.X;
yTranslate = 0;
break;
case Edge.BottomLeft:
allowConstrain = true;
xTranslate = -spBounds2.X - spBounds2.Width;
yTranslate = -spBounds2.Y;
break;
case Edge.Bottom:
allowConstrain = false;
xTranslate = 0;
yTranslate = -spBounds2.Y;
break;
case Edge.BottomRight:
allowConstrain = true;
xTranslate = -spBounds2.X;
yTranslate = -spBounds2.Y;
break;
}
translateMatrix.Translate(xTranslate, yTranslate, MatrixOrder.Append);
float newWidth = spBounds2.Width + xulen;
float newHeight = spBounds2.Height + yulen;
float xScale = newWidth / spBounds2.Width;
float yScale = newHeight / spBounds2.Height;
if (allowConstrain && (this.ModifierKeys & Keys.Shift) != 0)
{
ConstrainScaling(this.context.liftedBounds, spBounds2.Width, spBounds2.Height,
newWidth, newHeight, out xScale, out yScale);
}
translateMatrix.Scale(xScale, yScale, MatrixOrder.Append);
translateMatrix.Translate(-xTranslate, -yTranslate, MatrixOrder.Append);
translateMatrix.RotateAt(+tAngle, sp2BoundsCenter, MatrixOrder.Append);
break;
default:
throw new InvalidEnumArgumentException();
}
this.context.deltaTransform.Reset();
this.context.deltaTransform.Multiply(this.context.liftTransform, MatrixOrder.Append);
this.context.deltaTransform.Multiply(translateMatrix, MatrixOrder.Append);
translateMatrix.Multiply(this.context.baseTransform, MatrixOrder.Prepend);
Selection.SetInterimTransform(translateMatrix);
interim.Dispose();
interim = null;
}
// advertise our angle of rotation to any host (i.e. mainform) that might want to use that information
this.hostShouldShowAngle = this.rotateNub.Visible;
this.hostAngle = -this.rotateNub.Angle;
Selection.PerformChanged();
dontDrop = false;
Render(newOffset, true);
Update();
sbLogger.Append("a ");
this.context.offset = newOffset;
sbLogger.Append("b ");
if (this.enableOutline)
{
DocumentWorkspace.ResetOutlineWhiteOpacity();
}
sbLogger.Append("c ");
}
sbLogger.Append("d ");
}
protected void RenderShape()
{
// create the Pen we will use to draw with
Pen outlinePen = null;
Brush interiorBrush = null;
PenInfo pi = AppEnvironment.PenInfo;
BrushInfo bi = AppEnvironment.BrushInfo;
ColorBgra primary = AppEnvironment.PrimaryColor;
ColorBgra secondary = AppEnvironment.SecondaryColor;
if (!ForceShapeDrawType && AppEnvironment.ShapeDrawType == ShapeDrawType.Interior)
{
Utility.Swap(ref primary, ref secondary);
}
// Initialize pens and brushes to the correct colors
if ((mouseButton & MouseButtons.Left) == MouseButtons.Left)
{
outlinePen = pi.CreatePen(AppEnvironment.BrushInfo, primary.ToColor(), secondary.ToColor());
interiorBrush = bi.CreateBrush(secondary.ToColor(), primary.ToColor());
}
else if ((mouseButton & MouseButtons.Right) == MouseButtons.Right)
{
outlinePen = pi.CreatePen(AppEnvironment.BrushInfo, secondary.ToColor(), primary.ToColor());
interiorBrush = bi.CreateBrush(primary.ToColor(), secondary.ToColor());
}
if (!this.UseDashStyle)
{
outlinePen.DashStyle = DashStyle.Solid;
}
outlinePen.LineJoin = LineJoin.MiterClipped;
outlinePen.MiterLimit = 2;
// redraw the old saveSurface
if (interiorSaveRegion != null)
{
RestoreRegion(interiorSaveRegion);
interiorSaveRegion.Dispose();
interiorSaveRegion = null;
}
if (outlineSaveRegion != null)
{
RestoreRegion(outlineSaveRegion);
outlineSaveRegion.Dispose();
outlineSaveRegion = null;
}
// anti-aliasing? Don't mind if I do
if (AppEnvironment.AntiAliasing)
{
renderArgs.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
}
else
{
renderArgs.Graphics.SmoothingMode = SmoothingMode.None;
}
// also set the pixel offset mode
renderArgs.Graphics.PixelOffsetMode = GetPixelOffsetMode();
// figure out how we're going to draw
ShapeDrawType drawType;
if (ForceShapeDrawType)
{
drawType = ForcedShapeDrawType;
}
else
{
drawType = AppEnvironment.ShapeDrawType;
}
// get the region we want to save
points = this.TrimShapePath(points);
PointF[] pointsArray = points.ToArray();
PdnGraphicsPath shapePath = CreateShapePath(pointsArray);
if (shapePath != null)
{
// create non-optimized interior region
PdnRegion interiorRegion = new PdnRegion(shapePath);
// create non-optimized outline region
PdnRegion outlineRegion;
using (PdnGraphicsPath outlinePath = (PdnGraphicsPath)shapePath.Clone())
{
try
{
outlinePath.Widen(outlinePen);
outlineRegion = new PdnRegion(outlinePath);
}
// Sometimes GDI+ gets cranky if we have a very small shape (e.g. all points
// are coincident).
catch (OutOfMemoryException)
{
outlineRegion = new PdnRegion(shapePath);
}
}
// create optimized outlineRegion for purposes of rendering, if it is possible to do so
// shapes will often provide an "optimized" region that circumvents the fact that
// we'd otherwise get a region that encompasses the outline *and* the interior, thus
// slowing rendering significantly in many cases.
RectangleF[] optimizedOutlineRegion = GetOptimizedShapeOutlineRegion(pointsArray, shapePath);
PdnRegion invalidOutlineRegion;
if (optimizedOutlineRegion != null)
{
Utility.InflateRectanglesInPlace(optimizedOutlineRegion, (int)(outlinePen.Width + 2));
invalidOutlineRegion = Utility.RectanglesToRegion(optimizedOutlineRegion);
}
else
{
invalidOutlineRegion = Utility.SimplifyAndInflateRegion(outlineRegion, Utility.DefaultSimplificationFactor, (int)(outlinePen.Width + 2));
}
// create optimized interior region
PdnRegion invalidInteriorRegion = Utility.SimplifyAndInflateRegion(interiorRegion, Utility.DefaultSimplificationFactor, 3);
PdnRegion invalidRegion = new PdnRegion();
invalidRegion.MakeEmpty();
// set up alpha blending
renderArgs.Graphics.CompositingMode = AppEnvironment.GetCompositingMode();
SaveRegion(invalidOutlineRegion, invalidOutlineRegion.GetBoundsInt());
this.outlineSaveRegion = invalidOutlineRegion;
if ((drawType & ShapeDrawType.Outline) != 0)
{
shapePath.Draw(renderArgs.Graphics, outlinePen);
}
invalidRegion.Union(invalidOutlineRegion);
// draw shape
if ((drawType & ShapeDrawType.Interior) != 0)
{
SaveRegion(invalidInteriorRegion, invalidInteriorRegion.GetBoundsInt());
this.interiorSaveRegion = invalidInteriorRegion;
renderArgs.Graphics.FillPath(interiorBrush, shapePath);
invalidRegion.Union(invalidInteriorRegion);
}
else
{
invalidInteriorRegion.Dispose();
invalidInteriorRegion = null;
}
bitmapLayer.Invalidate(invalidRegion);
invalidRegion.Dispose();
invalidRegion = null;
outlineRegion.Dispose();
outlineRegion = null;
interiorRegion.Dispose();
interiorRegion = null;
}
Update();
if (shapePath != null)
{
shapePath.Dispose();
shapePath = null;
}
outlinePen.Dispose();
interiorBrush.Dispose();
}
public bool PerformAction()
{
bool success = true;
if (this.documentWorkspace.Selection.IsEmpty ||
!(this.documentWorkspace.ActiveLayer is BitmapLayer))
{
return(false);
}
try
{
using (new WaitCursorChanger(this.documentWorkspace))
{
Utility.GCFullCollect();
PdnRegion selectionRegion = this.documentWorkspace.Selection.CreateRegion();
PdnGraphicsPath selectionOutline = this.documentWorkspace.Selection.CreatePath();
BitmapLayer activeLayer = (BitmapLayer)this.documentWorkspace.ActiveLayer;
RenderArgs renderArgs = new RenderArgs(activeLayer.Surface);
MaskedSurface maskedSurface = new MaskedSurface(renderArgs.Surface, selectionOutline);
SurfaceForClipboard surfaceForClipboard = new SurfaceForClipboard(maskedSurface);
Rectangle selectionBounds = Utility.GetRegionBounds(selectionRegion);
if (selectionBounds.Width > 0 && selectionBounds.Height > 0)
{
Surface copySurface = new Surface(selectionBounds.Width, selectionBounds.Height);
Bitmap copyBitmap = copySurface.CreateAliasedBitmap();
Bitmap copyOpaqueBitmap = new Bitmap(copySurface.Width, copySurface.Height, PixelFormat.Format24bppRgb);
using (Graphics copyBitmapGraphics = Graphics.FromImage(copyBitmap))
{
copyBitmapGraphics.Clear(Color.White);
}
maskedSurface.Draw(copySurface, -selectionBounds.X, -selectionBounds.Y);
using (Graphics copyOpaqueBitmapGraphics = Graphics.FromImage(copyOpaqueBitmap))
{
copyOpaqueBitmapGraphics.Clear(Color.White);
copyOpaqueBitmapGraphics.DrawImage(copyBitmap, 0, 0);
}
DataObject dataObject = new DataObject();
dataObject.SetData(DataFormats.Bitmap, copyOpaqueBitmap);
dataObject.SetData(surfaceForClipboard);
int retryCount = 2;
while (retryCount >= 0)
{
try
{
using (new WaitCursorChanger(this.documentWorkspace))
{
Clipboard.SetDataObject(dataObject, true);
}
break;
}
catch
{
if (retryCount == 0)
{
success = false;
Utility.ErrorBox(this.documentWorkspace,
PdnResources.GetString("CopyAction.Error.TransferToClipboard"));
}
else
{
Thread.Sleep(200);
}
}
finally
{
--retryCount;
}
}
copySurface.Dispose();
copyBitmap.Dispose();
copyOpaqueBitmap.Dispose();
}
selectionRegion.Dispose();
selectionOutline.Dispose();
renderArgs.Dispose();
maskedSurface.Dispose();
}
}
catch (OutOfMemoryException)
{
success = false;
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("CopyAction.Error.OutOfMemory"));
}
catch (Exception)
{
success = false;
Utility.ErrorBox(this.documentWorkspace, PdnResources.GetString("CopyAction.Error.Generic"));
}
Utility.GCFullCollect();
return(success);
}