public static void DrawText(this DrawingContext drawingContext, string text, Point point, Typeface typeface, double emSize,
Color color, Color?haloColor = null, double?haloRadius = null, double angle = 0)
{
var formattedText = new FormattedText(text, CultureInfo.CurrentCulture, FlowDirection.LeftToRight,
typeface, emSize, new SolidColorBrush(color));
var width = formattedText.Width + haloRadius.GetValueOrDefault() * 2;
var height = formattedText.Height + haloRadius.GetValueOrDefault() * 2;
var rotate = new RotateTransform(angle);
var newRect = rotate.TransformBounds(new Rect(new Point(0, 0), new Size(width, height)));
drawingContext.PushTransform(new TranslateTransform(-newRect.Left, -newRect.Top));
drawingContext.PushTransform(rotate);
if (haloColor.HasValue && haloRadius.HasValue && haloRadius.Value > 0)
{
var pen = new Pen(new SolidColorBrush(haloColor.Value), haloRadius.Value * 2);
var textGeometry = formattedText.BuildGeometry(point);
drawingContext.DrawGeometry(null, pen, textGeometry);
}
drawingContext.DrawText(formattedText, point);
drawingContext.Pop();
drawingContext.Pop();
}
internal void RotateImage(double degrees)
{
ImageSource source = image.Source;
// then copy the image to a format we can handle.
double w = source.Width;
double h = source.Height;
RenderTargetBitmap copy = new RenderTargetBitmap((int)h, (int)w, 96, 96, PixelFormats.Pbgra32);
Image img = new Image();
img.Source = source;
img.Width = w;
img.Height = h;
// rotate the angle about 0,0
RotateTransform rotate = new RotateTransform(degrees, 0, 0);
Rect bounds = new Rect(0, 0, w, h);
// figure out where the bounds ends up with this rotation.
Rect transformed = rotate.TransformBounds(bounds);
// keep the bounds in non-negative territory by adjusting with a translate.
TransformGroup group = new TransformGroup();
group.Children.Add(rotate);
group.Children.Add(new TranslateTransform(transformed.X < 0 ? -transformed.X : 0,
transformed.Y < 0 ? -transformed.Y : 0));
img.RenderTransform = group;
img.Arrange(bounds);
copy.Render(img);
image.Source = copy;
}
private void ComputeVideoBruchTransform()
{
if (this.captureDevice == null)
{
return;
}
var tmptransform = new RotateTransform {
Angle = this.orientationAngle + this.captureDevice.SensorRotationInDegrees
};
var previewSize = tmptransform.TransformBounds(new Rect(new Point(), new System.Windows.Size(this.captureDevice.PreviewResolution.Width, this.captureDevice.PreviewResolution.Height)));
double s1 = this.viewfinderCanvas.ActualWidth / previewSize.Width;
double s2 = this.viewfinderCanvas.ActualHeight / previewSize.Height;
double scale = Math.Max(s1, s2);
var t = new TransformGroup();
if (this.sensorLocation == CameraSensorLocation.Front)
{
t.Children.Add(new CompositeTransform
{
Rotation = -(this.orientationAngle + this.captureDevice.SensorRotationInDegrees),
CenterX = this.viewfinderCanvas.ActualWidth / 2,
CenterY = this.viewfinderCanvas.ActualHeight / 2,
ScaleX = scale,
ScaleY = scale
});
t.Children.Add(new ScaleTransform
{
ScaleX = -1,
CenterX = this.viewfinderCanvas.ActualWidth / 2,
CenterY = this.viewfinderCanvas.ActualHeight / 2
});
}
else
{
t.Children.Add(
new CompositeTransform
{
Rotation = this.orientationAngle + this.captureDevice.SensorRotationInDegrees,
CenterX = this.viewfinderCanvas.ActualWidth / 2,
CenterY = this.viewfinderCanvas.ActualHeight / 2,
ScaleX = scale,
ScaleY = scale
});
}
this.viewfinderBrush.Transform = t;
}
public void TransformBounds()
{
var rect = new Rect(-5, -5, 25, 10);
var transform = new RotateTransform {
Angle = 45
};
var result = transform.TransformBounds(rect);
result.X.Should().BeInRange(-7.071068, -7.071067);
result.Y.Should().BeInRange(-7.071068, -7.071067);
result.Height.Should().BeInRange(24.748737, 24.748738);
result.Width.Should().BeInRange(24.748737, 24.748738);
}
public override bool ShapeAllInRect(Rectangle rect)
{
PreviewPoint p1 = PointToZoomPoint(new PreviewPoint(rect.X, rect.Y));
PreviewPoint p2 = PointToZoomPoint(new PreviewPoint(rect.X + rect.Width, rect.Y + rect.Height));
int X1 = Math.Min(p1.X, p2.X);
int X2 = Math.Max(p1.X, p2.X);
int Y1 = Math.Min(p1.Y, p2.Y);
int Y2 = Math.Max(p1.Y, p2.Y);
var rt = new RotateTransform(RotationAngle, _rotationCenter.X, _rotationCenter.Y);
var b = rt.TransformBounds(Bounds);
return(b.Top >= Y1 && b.Bottom <= Y2 && b.Left >= X1 && b.Right <= X2);
}
/// <summary>
/// This function calculates the smallest axis-aligned bounding box possible for the current ViewPort.
/// This means that if the current Map has a Heading that is not a multiple of 90°
/// this function will a bounding box that is bigger than the actual ViewPort.
/// </summary>
public virtual Rect GetViewportBounds()
{
double zoomFactor = ViewPortProjection.GetZoomFactor(ZoomLevel);
double halfHeight = RenderSize.Height / (2 * zoomFactor);
double halfWidth = RenderSize.Width / (2 * zoomFactor);
Point topLeft = new Point(ViewPortCenter.X - halfWidth, ViewPortCenter.Y - halfHeight);
Point bottomRight = new Point(ViewPortCenter.X + halfWidth, ViewPortCenter.Y + halfHeight);
RotateTransform rotation = new RotateTransform {
Angle = Heading, CenterY = ViewPortCenter.Y, CenterX = ViewPortCenter.X
};
Rect rect = new Rect(topLeft, bottomRight);
rect = rotation.TransformBounds(rect);
return(rect);
}
public WordDrawing(WordCloudEntry wordEntry, WordCloudTheme theme, DpiScale scale)
{
var text = new FormattedText(wordEntry.Word,
CultureInfo.CurrentUICulture,
FlowDirection.LeftToRight,
theme.Typeface,
100,
wordEntry.Brush,
scale.PixelsPerDip);
var textGeometry = text.BuildGeometry(new Point(0, 0));
_geo = textGeometry;
WordCloudEntry = wordEntry;
_bounds = textGeometry.Bounds;
_geo.Transform = _transformGroup;
var rotateTransform = new RotateTransform(WordCloudEntry.Angle, _bounds.Width / 2, _bounds.Height / 2);
_transformGroup.Children.Add(rotateTransform);
_bounds = rotateTransform.TransformBounds(_bounds);
_transformGroup.Children.Add(_scaleTransformGroup);
_initialPlacementTransform = new TranslateTransform(-_bounds.X, -_bounds.Y);
_transformGroup.Children.Add(_initialPlacementTransform);
_bounds.X = 0;
_bounds.Y = 0;
IntWidth = (int)Math.Ceiling(_bounds.Width);
IntHeight = (int)Math.Ceiling(_bounds.Height);
_transformGroup.Children.Add(_translateTransform);
}
private static Point DrawLineArrowInternal(DrawingContext dc, double half, Pen pen, Brush brush, double x, double y, double angle, ArrowStyle style)
{
Point pt;
bool doRectTransform = angle % 90.0 != 0.0;
var rt = new RotateTransform(angle, x, y);
double rx = style.RadiusX;
double ry = style.RadiusY;
double sx = 2.0 * rx;
double sy = 2.0 * ry;
switch (style.ArrowType)
{
default:
case ArrowType.None:
{
pt = new Point(x, y);
}
break;
case ArrowType.Rectangle:
{
pt = rt.Transform(new Point(x - sx, y));
var rect = new Rect(x - sx, y - ry, sx, sy);
if (doRectTransform)
{
dc.PushTransform(rt);
DrawRectangleInternal(dc, half, brush, pen, style.IsStroked, style.IsFilled, ref rect);
dc.Pop();
}
else
{
var bounds = rt.TransformBounds(rect);
DrawRectangleInternal(dc, half, brush, pen, style.IsStroked, style.IsFilled, ref bounds);
}
}
break;
case ArrowType.Ellipse:
{
pt = rt.Transform(new Point(x - sx, y));
dc.PushTransform(rt);
var c = new Point(x - rx, y);
DrawEllipseInternal(dc, half, brush, pen, style.IsStroked, style.IsFilled, ref c, rx, ry);
dc.Pop();
}
break;
case ArrowType.Arrow:
{
pt = rt.Transform(new Point(x, y));
var p11 = rt.Transform(new Point(x - sx, y + sy));
var p21 = rt.Transform(new Point(x, y));
var p12 = rt.Transform(new Point(x - sx, y - sy));
var p22 = rt.Transform(new Point(x, y));
DrawLineInternal(dc, half, pen, style.IsStroked, ref p11, ref p21);
DrawLineInternal(dc, half, pen, style.IsStroked, ref p12, ref p22);
}
break;
}
return(pt);
}
private void RotateTransform_Changed(object sender, EventArgs e)
{
Rect newRect = _rotateTransform.TransformBounds(_bounds);
NotifyShapeChanged(ref _bounds, ref newRect);
}
// Draw rotated text at the indicated location.
public static void DrawRotatedString(this DrawingContext drawing_context,
string text, double angle, string font_name, double em_size, Brush brush,
Point origin, TextAlignment text_align, VertAlignment valign, TextAlignment halign)
{
Typeface typeface = new Typeface(font_name);
FormattedText formatted_text = new FormattedText(
text, CultureInfo.CurrentUICulture, FlowDirection.LeftToRight,
typeface, em_size, brush);
formatted_text.TextAlignment = text_align;
// Make a transformation to center the text.
double width = formatted_text.Width - formatted_text.OverhangLeading;
double height = formatted_text.Height;
TranslateTransform translate1 = new TranslateTransform();
translate1.Y = -height / 2;
if ((text_align == TextAlignment.Left) ||
(text_align == TextAlignment.Justify))
{
translate1.X = -width / 2;
}
else if (text_align == TextAlignment.Right)
{
translate1.X = width / 2;
}
else
{
translate1.X = 0;
}
// Make a transformation to rotate the text.
RotateTransform rotate = new RotateTransform(angle);
// Get the text's bounding rectangle.
Rect rect = new Rect(0, 0, width, height);
if (text_align == TextAlignment.Center)
{
rect.X -= width / 2;
}
else if (text_align == TextAlignment.Right)
{
rect.X -= width;
}
// Get the rotated bounding rectangle.
Rect rotated_rect = rotate.TransformBounds(rect);
// Make a transformation to center the
// bounding rectangle at the destination.
TranslateTransform translate2 = new TranslateTransform(origin.X, origin.Y);
// Adjust the translation for the desired alignment.
if (halign == TextAlignment.Left)
{
translate2.X += rotated_rect.Width / 2;
}
else if (halign == TextAlignment.Right)
{
translate2.X -= rotated_rect.Width / 2;
}
if (valign == VertAlignment.Top)
{
translate2.Y += rotated_rect.Height / 2;
}
else if (valign == VertAlignment.Bottom)
{
translate2.Y -= rotated_rect.Height / 2;
}
// Push transformations in reverse order.
drawing_context.PushTransform(translate2);
drawing_context.PushTransform(rotate);
drawing_context.PushTransform(translate1);
// Draw.
drawing_context.DrawText(formatted_text, new Point(0, 0));
// Draw a rectangle around the text. (For debugging.)
drawing_context.DrawRectangle(null, new Pen(Brushes.Red, 1), rect);
// Remove the transformations.
drawing_context.Pop();
drawing_context.Pop();
drawing_context.Pop();
// Draw the rotated bounding rectangle. (For debugging.)
Rect transformed_rect =
translate2.TransformBounds(
rotate.TransformBounds(
translate1.TransformBounds(rect)));
Pen custom_pen = new Pen(Brushes.Blue, 1);
custom_pen.DashStyle = new DashStyle(
new double[] { 5, 5 }, 0);
drawing_context.DrawRectangle(null, custom_pen, transformed_rect);
}
private void MoveThumb_DragDelta(object sender, DragDeltaEventArgs e)
{
ContentControl designerItem = DataContext as ContentControl;
if (designerItem != null)
{
Point dragDelta = new Point(e.HorizontalChange, e.VerticalChange);
RotateTransform rotateTransform = designerItem.RenderTransform as RotateTransform;
if (rotateTransform != null)
{
dragDelta = rotateTransform.Transform(dragDelta);
}
Canvas parent_canvas = designerItem.Parent as Canvas;
double left_canvas = Canvas.GetLeft(designerItem);
double right_canvas = left_canvas + designerItem.ActualWidth;
double top_canvas = Canvas.GetTop(designerItem);
double bottom_canvas = top_canvas + designerItem.ActualHeight;
Rect orig_bounds = new Rect(designerItem.RenderSize);
Rect bounds = new Rect(designerItem.RenderSize);
if (rotateTransform != null)
{
bounds = rotateTransform.TransformBounds(bounds);
}
if (rotateTransform != null)
{
left_canvas = left_canvas + (orig_bounds.Width - bounds.Width) / 2.0;
top_canvas = top_canvas + (orig_bounds.Height - bounds.Height) / 2.0;
Canvas.SetLeft(boundingBox, left_canvas);
Canvas.SetTop(boundingBox, top_canvas);
boundingBox.Width = bounds.Width;
boundingBox.Height = bounds.Height;
if (!added)
{
(designerItem.Parent as Canvas).Children.Add(boundingBox);
added = true;
}
else
{
boundingBox.UpdateLayout();
}
}
//Horizontal Colision
if (left_canvas + dragDelta.X < 0)
{
Canvas.SetLeft(designerItem, Canvas.GetLeft(designerItem));
}
else if (left_canvas + Math.Abs(bounds.Width) + dragDelta.X > parent_canvas.ActualWidth)
{
Canvas.SetLeft(designerItem, Canvas.GetLeft(designerItem));
}
else
{
Canvas.SetLeft(designerItem, Canvas.GetLeft(designerItem) + dragDelta.X);
}
//Vertical Collision
if (top_canvas + dragDelta.Y < 0)
{
Canvas.SetTop(designerItem, Canvas.GetTop(designerItem));
}
else if (top_canvas + Math.Abs(bounds.Height) + dragDelta.Y > parent_canvas.ActualHeight + 5)
{
Canvas.SetTop(designerItem, Canvas.GetTop(designerItem));
}
else
{
Canvas.SetTop(designerItem, Canvas.GetTop(designerItem) + dragDelta.Y);
}
}
}
private void RotateThumb_DragDelta(object sender, DragDeltaEventArgs e)
{
//Initialize the selected widgets' context when first rotate
if (_infoItems.Count <= 0)
{
WidgetViewModBase wdg = designerItem.DataContext as WidgetViewModBase;
if (wdg.IsGroup == false)
{
wdg.CreateNewPropertyMementos();
wdg.PropertyMementos.AddPropertyMemento(new PropertyMemento("RotateAngle", wdg.RotateAngle, wdg.RotateAngle));
_infoItems.Add(wdg);
}
else
{
foreach (WidgetViewModBase item in (wdg as GroupViewModel).WidgetChildren)
{
item.CreateNewPropertyMementos();
item.CreateNewPropertyMementos();
item.PropertyMementos.AddPropertyMemento(new PropertyMemento("RotateAngle", item.RotateAngle, item.RotateAngle));
item.PropertyMementos.AddPropertyMemento(new PropertyMemento("Left", item.Raw_Left, item.Raw_Left));
item.PropertyMementos.AddPropertyMemento(new PropertyMemento("Top", item.Raw_Top, item.Raw_Top));
_infoItems.Add(item);
}
}
}
//Rotate the current widget
if (this.designerItem != null && this.canvas != null)
{
ContentPresenter wrapper = VisualTreeHelper.GetParent(VisualTreeHelper.GetParent(designerItem)) as ContentPresenter;
Point currentPoint = Mouse.GetPosition(this.canvas);
Vector deltaVector = Point.Subtract(currentPoint, this.centerPoint);
double angle = Vector.AngleBetween(this.startVector, deltaVector);
RotateTransform rotateTransform = designerItem.RenderTransform as RotateTransform;
angle = this.initialAngle + Math.Round(angle, 0);
if (angle < 0)
{
angle += 360;
}
else if (angle >= 360)
{
angle -= 360;
}
wrapper.InvalidateMeasure();
if (this.designerItem.IsGroup == true)
{
GroupViewModel group = this.designerItem.DataContext as GroupViewModel;
DesignerCanvas dc = canvas as DesignerCanvas;
foreach (WidgetViewModBase item in group.WidgetChildren)
{
RotateTransform rt = new RotateTransform(); // bw.RenderTransform as RotateTransform;
rt.Angle = angle - groupIntialAngle;
rt.CenterX = groupCenterX;
rt.CenterY = groupCenterY;
double oldAngle = item.RotateAngle;
item.RotateAngle = Convert.ToInt16(angle - groupIntialAngle);
Rect rect1 = rt.TransformBounds(new Rect(item.Left, item.Top, item.ItemWidth, item.ItemHeight));
Rect rect2 = item.RevertBoundingRectangle(rect1);
//item.IsActual = true;
item.Raw_Left = rect2.Left;
item.Raw_Top = rect2.Top;
//only widget can rotate
if (item is WidgetRotateViewModBase)
{
int newAngle = Convert.ToInt16(oldAngle + (angle - groupIntialAngle)) % 360;
if (newAngle < 0)
{
newAngle += 360;
}
else if (angle >= 360)
{
newAngle -= 360;
}
item.RotateAngle = newAngle;
}
else
{
item.RotateAngle = 0;
}
}
group.Refresh();
groupIntialAngle = angle;
}
else
{
rotateTransform.Angle = angle;
}
if (this.designerItem.ParentID != Guid.Empty)
{
IGroupOperation pageVM = canvas.DataContext as IGroupOperation;
pageVM.UpdateGroup(this.designerItem.ParentID);
}
if (this.designerItem.IsGroup)
{
IGroupOperation pageVM = canvas.DataContext as IGroupOperation;
pageVM.UpdateGroup((this.designerItem.DataContext as GroupViewModel).WidgetID);
}
}
}
private void LifeTextDrawTransform(string s, DrawingContext drawingContext, Brush brush, Point p)
{
bool debug = false;
FormattedText formattedText = new FormattedText(
s,
CultureInfo.GetCultureInfo("en-us"),
FlowDirection.LeftToRight,
new Typeface(new FontFamily("Chakra Petch"), FontStyles.Normal, FontWeights.Bold, FontStretches.Normal),
18,
brush);
formattedText.SetFontWeight(FontWeights.Bold);
TextAlignment text_align = TextAlignment.Center;
// Make a transformation to center the text.
double width = formattedText.Width -
formattedText.OverhangLeading;
double height = formattedText.Height;
TranslateTransform translate1 = new TranslateTransform
{
Y = -height / 2
};
if ((text_align == TextAlignment.Left) ||
(text_align == TextAlignment.Justify))
{
translate1.X = -width / 2;
}
else if (text_align == TextAlignment.Right)
{
translate1.X = width / 2;
}
else
{
translate1.X = 0;
}
RotateTransform rotate = new RotateTransform(-35);
// Get the text's bounding rectangle.
Rect rect = new Rect(0, 0, width, height);
if (text_align == TextAlignment.Center)
{
rect.X -= width / 2;
}
else if (text_align == TextAlignment.Right)
{
rect.X -= width;
}
// Get the rotated bounding rectangle.
Rect rotated_rect = rotate.TransformBounds(rect);
Point origin = new Point(p.X + 30, p.Y + 10);
// Make a transformation to center the
// bounding rectangle at the destination.
TranslateTransform translate2 = new TranslateTransform(origin.X, origin.Y);
TextAlignment halign = TextAlignment.Center;
VerticalAlignment valign = VerticalAlignment.Top;
// Adjust the translation for the desired alignment.
if (halign == TextAlignment.Left)
{
translate2.X += rotated_rect.Width / 2;
}
else if (halign == TextAlignment.Right)
{
translate2.X -= rotated_rect.Width / 2;
}
if (valign == VerticalAlignment.Top)
{
translate2.Y += rotated_rect.Height / 2;
}
else if (valign == VerticalAlignment.Bottom)
{
translate2.Y -= rotated_rect.Height / 2;
}
// Push transformations in reverse order. (Thanks Microsoft!)
drawingContext.PushTransform(translate2);
drawingContext.PushTransform(rotate);
drawingContext.PushTransform(translate1);
// Draw.
drawingContext.DrawText(formattedText, new Point(0, 0));
// Draw a rectangle around the text. (For debugging.)
if (debug == true)
{
drawingContext.DrawRectangle(null, new Pen(Brushes.Red, 1), rect);
}
// Remove the transformations.
drawingContext.Pop();
drawingContext.Pop();
drawingContext.Pop();
// Draw the rotated bounding rectangle. (For debugging.)
if (debug == true)
{
Rect transformed_rect = translate2.TransformBounds(rotate.TransformBounds(translate1.TransformBounds(rect)));
Pen custom_pen = new Pen(Brushes.Blue, 1)
{
DashStyle = new DashStyle(new double[] { 5, 5 }, 0)
};
drawingContext.DrawRectangle(null, custom_pen, transformed_rect);
}
}
/// <summary>
///
/// </summary>
/// <param name="dc"></param>
/// <param name="line"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <param name="db"></param>
/// <param name="r"></param>
public void Draw(object dc, XLine line, double dx, double dy, ImmutableArray <ShapeProperty> db, Record r)
{
var _dc = dc as DrawingContext;
var style = line.Style;
if (style == null)
{
return;
}
double zoom = _state.Zoom;
double thicknessLine = style.Thickness / zoom;
double halfLine = thicknessLine / 2.0;
double thicknessStartArrow = style.StartArrowStyle.Thickness / zoom;
double halfStartArrow = thicknessStartArrow / 2.0;
double thicknessEndArrow = style.EndArrowStyle.Thickness / zoom;
double halfEndArrow = thicknessEndArrow / 2.0;
// line style
Tuple <Brush, Pen> lineCache = null;
Brush fillLine;
Pen strokeLine;
if (_enableStyleCache &&
_styleCache.TryGetValue(style, out lineCache))
{
fillLine = lineCache.Item1;
strokeLine = lineCache.Item2;
}
else
{
fillLine = CreateBrush(style.Fill);
strokeLine = CreatePen(style, thicknessLine);
if (_enableStyleCache)
{
_styleCache.Add(style, Tuple.Create(fillLine, strokeLine));
}
}
// start arrow style
Tuple <Brush, Pen> startArrowCache = null;
Brush fillStartArrow;
Pen strokeStartArrow;
if (_enableArrowStyleCache &&
_arrowStyleCache.TryGetValue(style.StartArrowStyle, out startArrowCache))
{
fillStartArrow = startArrowCache.Item1;
strokeStartArrow = startArrowCache.Item2;
}
else
{
fillStartArrow = CreateBrush(style.StartArrowStyle.Fill);
strokeStartArrow = CreatePen(style.StartArrowStyle, thicknessStartArrow);
if (_enableArrowStyleCache)
{
_arrowStyleCache.Add(style.StartArrowStyle, Tuple.Create(fillStartArrow, strokeStartArrow));
}
}
// end arrow style
Tuple <Brush, Pen> endArrowCache = null;
Brush fillEndArrow;
Pen strokeEndArrow;
if (_enableArrowStyleCache &&
_arrowStyleCache.TryGetValue(style.EndArrowStyle, out endArrowCache))
{
fillEndArrow = endArrowCache.Item1;
strokeEndArrow = endArrowCache.Item2;
}
else
{
fillEndArrow = CreateBrush(style.EndArrowStyle.Fill);
strokeEndArrow = CreatePen(style.EndArrowStyle, thicknessEndArrow);
if (_enableArrowStyleCache)
{
_arrowStyleCache.Add(style.EndArrowStyle, Tuple.Create(fillEndArrow, strokeEndArrow));
}
}
// line max length
double x1 = line.Start.X + dx;
double y1 = line.Start.Y + dy;
double x2 = line.End.X + dx;
double y2 = line.End.Y + dy;
XLine.SetMaxLength(line, ref x1, ref y1, ref x2, ref y2);
// arrow transforms
var sas = style.StartArrowStyle;
var eas = style.EndArrowStyle;
double a1 = Math.Atan2(y1 - y2, x1 - x2) * 180.0 / Math.PI;
double a2 = Math.Atan2(y2 - y1, x2 - x1) * 180.0 / Math.PI;
bool doRectTransform1 = a1 % 90.0 != 0.0;
bool doRectTransform2 = a2 % 90.0 != 0.0;
var t1 = new RotateTransform(a1, x1, y1);
var t2 = new RotateTransform(a2, x2, y2);
Point pt1;
Point pt2;
// draw start arrow
double radiusX1 = sas.RadiusX;
double radiusY1 = sas.RadiusY;
double sizeX1 = 2.0 * radiusX1;
double sizeY1 = 2.0 * radiusY1;
switch (sas.ArrowType)
{
default:
case ArrowType.None:
{
pt1 = new Point(x1, y1);
}
break;
case ArrowType.Rectangle:
{
pt1 = t1.Transform(new Point(x1 - sizeX1, y1));
var rect = new Rect(x1 - sizeX1, y1 - radiusY1, sizeX1, sizeY1);
if (doRectTransform1)
{
_dc.PushTransform(t1);
DrawRectangleInternal(_dc, halfStartArrow, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref rect);
_dc.Pop();
}
else
{
var bounds = t1.TransformBounds(rect);
DrawRectangleInternal(_dc, halfStartArrow, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref bounds);
}
}
break;
case ArrowType.Ellipse:
{
pt1 = t1.Transform(new Point(x1 - sizeX1, y1));
_dc.PushTransform(t1);
var c = new Point(x1 - radiusX1, y1);
DrawEllipseInternal(_dc, halfStartArrow, fillStartArrow, strokeStartArrow, sas.IsStroked, sas.IsFilled, ref c, radiusX1, radiusY1);
_dc.Pop();
}
break;
case ArrowType.Arrow:
{
pt1 = t1.Transform(new Point(x1, y1));
var p11 = t1.Transform(new Point(x1 - sizeX1, y1 + sizeY1));
var p21 = t1.Transform(new Point(x1, y1));
var p12 = t1.Transform(new Point(x1 - sizeX1, y1 - sizeY1));
var p22 = t1.Transform(new Point(x1, y1));
DrawLineInternal(_dc, halfStartArrow, strokeStartArrow, sas.IsStroked, ref p11, ref p21);
DrawLineInternal(_dc, halfStartArrow, strokeStartArrow, sas.IsStroked, ref p12, ref p22);
}
break;
}
// draw end arrow
double radiusX2 = eas.RadiusX;
double radiusY2 = eas.RadiusY;
double sizeX2 = 2.0 * radiusX2;
double sizeY2 = 2.0 * radiusY2;
switch (eas.ArrowType)
{
default:
case ArrowType.None:
{
pt2 = new Point(x2, y2);
}
break;
case ArrowType.Rectangle:
{
pt2 = t2.Transform(new Point(x2 - sizeX2, y2));
var rect = new Rect(x2 - sizeX2, y2 - radiusY2, sizeX2, sizeY2);
if (doRectTransform2)
{
_dc.PushTransform(t2);
DrawRectangleInternal(_dc, halfEndArrow, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref rect);
_dc.Pop();
}
else
{
var bounds = t2.TransformBounds(rect);
DrawRectangleInternal(_dc, halfEndArrow, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref bounds);
}
}
break;
case ArrowType.Ellipse:
{
pt2 = t2.Transform(new Point(x2 - sizeX2, y2));
_dc.PushTransform(t2);
var c = new Point(x2 - radiusX2, y2);
DrawEllipseInternal(_dc, halfEndArrow, fillEndArrow, strokeEndArrow, eas.IsStroked, eas.IsFilled, ref c, radiusX2, radiusY2);
_dc.Pop();
}
break;
case ArrowType.Arrow:
{
pt2 = t2.Transform(new Point(x2, y2));
var p11 = t2.Transform(new Point(x2 - sizeX2, y2 + sizeY2));
var p21 = t2.Transform(new Point(x2, y2));
var p12 = t2.Transform(new Point(x2 - sizeX2, y2 - sizeY2));
var p22 = t2.Transform(new Point(x2, y2));
DrawLineInternal(_dc, halfEndArrow, strokeEndArrow, eas.IsStroked, ref p11, ref p21);
DrawLineInternal(_dc, halfEndArrow, strokeEndArrow, eas.IsStroked, ref p12, ref p22);
}
break;
}
// draw line using points from arrow transforms
DrawLineInternal(_dc, halfLine, strokeLine, line.IsStroked, ref pt1, ref pt2);
}