public void Paint(DGraphics dg, DPrintSettings dps, Figure backgroundFigure, IList<Figure> figures)
{
// margin
dg.Translate(dps.MarginLeft, dps.MarginTop);
// scale & center
double pgAreaX = dps.PageWidth - dps.MarginLeft - dps.MarginRight;
double pgAreaY = dps.PageHeight - dps.MarginTop - dps.MarginBottom;
double sx = pgAreaX / PageSize.X;
double sy = pgAreaY / PageSize.Y;
if (sx > sy)
{
dg.Translate(pgAreaX / 2, 0);
dg.Scale(sy, sy);
dg.Translate(- PageSize.X / 2, 0);
}
else
{
dg.Translate(0, pgAreaY / 2);
dg.Scale(sx, sx);
dg.Translate(0, - PageSize.Y / 2);
}
// paint figures
base.Paint(dg, backgroundFigure, figures);
// paint outline
dg.DrawRect(0, 0, pageSize.X, pageSize.Y, DColor.Black);
}
protected override void PaintBody(DGraphics dg)
{
#if BEHAVIOURS
// select paint properties
DColor Fill = this.Fill;
DColor Stroke = this.Stroke;
double Alpha = this.Alpha;
if (MouseOver)
{
if (MouseOverBehaviour.SetFill)
Fill = MouseOverBehaviour.Fill;
if (MouseOverBehaviour.SetStroke)
Stroke = MouseOverBehaviour.Stroke;
if (MouseOverBehaviour.SetAlpha)
Alpha = MouseOverBehaviour.Alpha;
}
#endif
// draw
DPoints pts = DrawPoints();
if (UseRealAlpha && Alpha != 1 && StrokeWidth > 0)
{
dg.StartGroup(X, Y, Width + StrokeWidth, Height + StrokeWidth, SwHalf, SwHalf);
dg.FillPolygon(pts, Fill, 1);
dg.DrawPolyline(pts, Stroke, 1, StrokeWidth, StrokeStyle, StrokeJoin, StrokeCap);
dg.DrawGroup(Alpha);
}
else
{
dg.FillPolygon(pts, Fill, Alpha);
dg.DrawPolyline(pts, Stroke, Alpha, StrokeWidth, StrokeStyle, StrokeJoin, StrokeCap);
}
}
DRect[] MeasureSelectionRects(DGraphics dg, string[] lines, double lineHeight)
{
DRect[] res = new DRect[0];
if (selectionLength != 0)
{
// init selection variables
int selStart;
int selEnd;
string wt = WrappedText;
if (selectionLength < 0)
{
selStart = WrapPos(wt, cursorPosition + selectionLength);
selEnd = WrapPos(wt, cursorPosition);
}
else
{
selStart = WrapPos(wt, cursorPosition);
selEnd = WrapPos(wt, cursorPosition + selectionLength);
}
// start measuring selection rectangles line by line
int n = 0;
for (int i = 0; i < lines.Length; i++)
{
string line = lines[i];
string selText = null;
int selIdx = 0;
if (selStart >= n && selStart < n + line.Length) // start line
{
selIdx = selStart - n;
selText = line.Substring(selIdx, Math.Min(selEnd - selStart, line.Length - selIdx));
}
else if (selEnd > n && selEnd <= n + line.Length) // end line
{
selIdx = 0;
selText = line.Substring(selIdx, selEnd - n);
}
else if (n > selStart && n < selEnd) // in between line
{
selIdx = 0;
selText = line;
}
if (selText != null)
{
// start of selection rect for this line
double x;
if (selIdx != 0)
x = TextHelper.MeasureText(dg, line.Substring(0, selIdx), this).X;
else
x = 0;
// width of selection rect for this line
double w = TextHelper.MeasureText(dg, selText, this).X;
if (selIdx != 0)
{
// take into account the space that is put infront of the first character
double w2 = GraphicsHelper.MeasureText(string.Concat(selText, selText),
FontName, FontSize, Bold, Italics, Underline, Strikethrough).X;
w = w2 - w;
}
// add selection rect to function result
Array.Resize(ref res, res.Length + 1);
res[res.Length - 1] = new DRect(x, lineHeight * i, w, lineHeight);
}
n += line.Length + 1;
}
}
return res;
}
public override void Paint(DGraphics dg, Figure f, double scale)
{
dg.DrawBitmap(bmp, GetRect(Position, f.GetSelectRect(), scale));
}
protected void DoNeedRepaint(DGraphics dg)
{
if (NeedRepaint != null)
NeedRepaint(this, dg);
}
void WmfUpdateMaxtrix(DGraphics dg, DMatrix m)
{
// could not get this working... used wmfApplyTransforms to all points instead :(
/*
dg.LoadTransform(m);
dg.Translate(X - winX, Y - winY);
//int pW = placeable.Right - placeable.Left, pH = placeable.Bottom - placeable.Top;
//dg.Scale(Width / pW, Height / pH);
//if (winWidth != 0 && winHeight != 0)
// dg.Scale(pW / winWidth, pH / winHeight);
if (winWidth != 0 && winHeight != 0)
dg.Scale(Width / winWidth, Height / winHeight);
*/
}
void PaintMetafile(DGraphics dg)
{
if (MetafileType == DMetafileType.Wmf && ImageData.Length >= Marshal.SizeOf(typeof(Wmf.Placeable)))
PaintWmf(dg);
}
public static DPoint MeasureText(DGraphics dg, string text, string fontName, double fontSize, bool bold, bool italics, bool underline, bool strikethrough)
{
return dg.MeasureText(text, fontName, fontSize, bold, italics, underline, strikethrough);
}
public void Paint(DGraphics dg)
{
dg.Save();
ApplyTransforms(dg, true);
PaintBody(dg);
if (glyphsVisible && HasGlyphs)
{
UnFlipTransform(dg);
PaintGlyphs(dg);
}
dg.Restore();
}
void UnFlipTransform(DGraphics dg)
{
DPoint ctr = Rect.Center;
if (FlipX)
{
dg.Scale(-1, 1);
dg.Translate(-ctr.X * 2, 0);
}
if (FlipY)
{
dg.Scale(1, -1);
dg.Translate(0, -ctr.Y * 2);
}
}
protected void ApplyTransforms(DGraphics dg, bool doFlips)
{
DPoint ctr = Rect.Center;
dg.Rotate(Rotation, ctr);
if (doFlips)
{
if (FlipX)
{
dg.Translate(ctr.X * 2, 0);
dg.Scale(-1, 1);
}
if (FlipY)
{
dg.Translate(0, ctr.Y * 2);
dg.Scale(1, -1);
}
}
}
protected override void PaintBody(DGraphics dg)
{
dg.FillRect(X, Y, Width, Height, Fill, Alpha);
base.PaintBody(dg);
}
public static DPoint MeasureText(DGraphics dg, string text, ITextable itext)
{
return GraphicsHelper.MeasureText(dg, text, itext.FontName, itext.FontSize, itext.Bold, itext.Italics, itext.Underline, itext.Strikethrough);
}
/* An example figure that show how one can use the CompositingMode
* to do a decent alpha blend.
* However this is a bit slower and does not blend the edges of the
* bitmap with the canvas when AntiAlias is turned on.
*
* Needs more work/thinking...
*/
protected override void PaintBody(DGraphics dg)
{
if (Width > 0 && Height > 0)
{
DBitmap bmp = GraphicsHelper.MakeBitmap(Width, Height);
DGraphics bmpGfx = GraphicsHelper.MakeGraphics(bmp);
bmpGfx.AntiAlias = dg.AntiAlias;
bmpGfx.CompositingMode = DCompositingMode.SourceCopy;
bmpGfx.FillRect(1, 1, Width - 2, Height - 2, DColor.Blue, Alpha);
bmpGfx.FillRect(1, 1, 2 * Width / 3, 2 * Height / 3, DColor.Red, Alpha);
bmpGfx.FillRect(Width / 3, Height / 3, 2 * Width / 3 - 1, 2 * Height / 3 - 1, DColor.Green, Alpha);
dg.DrawBitmap(bmp, Rect, Alpha);
bmpGfx.Dispose();
bmp.Dispose();
}
}
protected override void PaintBody(DGraphics dg)
{
if (UseRealAlpha)
{
if (Width > 0 && Height > 0)
{
DRect rS = GetSelectRect();
dg.StartGroup(rS.X, rS.Y, rS.Width, rS.Height, 0, 0);
foreach (Figure f in childFigs)
{
f._controlScale = _controlScale;
f.GlyphsVisible = GlyphsVisible;
f.Paint(dg);
}
dg.DrawGroup(Alpha);
}
}
else
foreach (Figure f in childFigs)
{
f._controlScale = _controlScale;
f.GlyphsVisible = GlyphsVisible;
f.Paint(dg);
}
}
protected override void PaintBody(DGraphics dg)
{
#if BEHAVIOURS
// select paint properties
DColor Fill = this.Fill; ;
DColor Stroke = this.Stroke;
double Alpha = this.Alpha;
if (MouseOver)
{
if (MouseOverBehaviour.SetFill)
Fill = MouseOverBehaviour.Fill;
if (MouseOverBehaviour.SetStroke)
Stroke = MouseOverBehaviour.Stroke;
if (MouseOverBehaviour.SetAlpha)
Alpha = MouseOverBehaviour.Alpha;
}
#endif
// do painting
DRect r = GetClockRect();
const int baseSize = 100;
if (editing)
dg.FillRect(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, DFillStyle.ForwardDiagonalHatch);
dg.FillEllipse(r, Fill, Alpha);
dg.DrawEllipse(r.X, r.Y, r.Width, r.Height, Stroke, Alpha, StrokeWidth, StrokeStyle);
double offset = 0.5 * Width / baseSize;
string[] nums = new string[] { "12", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11" };
string font = "Arial";
double fontSz = 6 * Width / baseSize;
if (fontSz <= 0) fontSz = 6;
for (int i = 0; i < nums.Length; i++)
{
string text = nums[i];
DPoint textPos = TextPoint(r, i);
DPoint textSz = dg.MeasureText(text, font, fontSz);
dg.Save();
dg.Translate(offset, offset);
dg.DrawText(text, font, fontSz, new DPoint(textPos.X - textSz.X / 2, textPos.Y - textSz.Y / 2), DColor.Black, Alpha);
dg.Restore();
dg.DrawText(text, font, fontSz, new DPoint(textPos.X - textSz.X / 2, textPos.Y - textSz.Y / 2), DColor.White, Alpha);
}
double handWidth = 3 * Width / baseSize;
dg.Save();
dg.Translate(offset, offset);
dg.DrawLine(r.Center, FirstHandPoint(r), DColor.Black, Alpha, DStrokeStyle.Solid, handWidth, DStrokeCap.Round);
dg.DrawLine(r.Center, SecondHandPoint(r), DColor.Black, Alpha, DStrokeStyle.Solid, handWidth, DStrokeCap.Round);
dg.Restore();
dg.DrawLine(r.Center, FirstHandPoint(r), DColor.Red, Alpha, DStrokeStyle.Solid, handWidth, DStrokeCap.Round);
dg.DrawLine(r.Center, SecondHandPoint(r), DColor.Blue, Alpha, DStrokeStyle.Solid, handWidth, DStrokeCap.Round);
}
protected override void PaintBody(DGraphics dg)
{
base.PaintBody(dg);
dg.Save();
dg.Clip(Rect);
DPoint offset = TextOffset;
dg.Translate(X + offset.X, Y + offset.Y);
tf.Paint(dg);
dg.Restore();
}
protected abstract void PaintBody(DGraphics dg);
protected override void PaintBody(DGraphics dg)
{
if (Alpha != 1)
{
dg.StartGroup(X, Y, Width, Height, 0, 0);
PaintMetafile(dg);
dg.DrawGroup(Alpha);
}
else
PaintMetafile(dg);
}
protected virtual void PaintContextHandle(DGraphics dg)
{
if (contextHandle)
{
double hb = _handleBorder * _controlScale;
double hb2 = hb + hb;
DRect r = GetContextHandleRect();
if (hb != 0)
r = r.Resize(hb, hb, -hb2, -hb2);
dg.FillEllipse(r, DColor.White);
dg.DrawEllipse(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, _controlScale, DStrokeStyle.Solid);
double qW = r.Width / 4;
double tH = r.Height / 3;
DPoints pts = new DPoints();
pts.Add(new DPoint(r.X + qW, r.Y + tH));
pts.Add(new DPoint(r.X + qW * 2, r.Y + tH * 2));
pts.Add(new DPoint(r.X + qW * 3, r.Y + tH));
dg.DrawPolyline(pts, DColor.Black);
}
}
private void PaintWmf(DGraphics dg)
{
dg.Save();
dg.Clip(Rect);
// store current matrix
DMatrix m = dg.SaveTransform();
// clear gdi objects
WmfGdiObjects.Clear();
// check for placeable key
if (WmfIsPlaceable)
{
bytesRead = 0;
// read placeable header
placeable = GetWmfPlaceable();
// checksum
int sum = 0;
for (int i = 0; i < (Marshal.SizeOf(typeof(Wmf.Placeable)) - 2 /* WmfPlaceable.Checksum is UInt16 */) / 2; i++)
sum = sum ^ BitConverter.ToUInt16(ImageData, i * 2);
if (sum != placeable.Checksum)
System.Diagnostics.Debug.Fail("checksum failed");
// init matrix
WmfUpdateMaxtrix(dg, m);
// read header
header = GetWmfHeader();
// iterate draw commands
bool records = true;
while (records)
{
int bytesReadPlusFuncHeaderSize = bytesRead;
Wmf.FuncHeader fh = GetWmfFuncHeader();
bytesReadPlusFuncHeaderSize += (int)fh.Size * 2;
bool breakme = false;
switch (fh.Function)
{
case Wmf.SaveDC:
break;
case Wmf.CreatePalette:
break;
case Wmf.SetBkMode:
int bkMode = GetInt16();
break;
case Wmf.SetMapMode:
int mapMode = GetInt16();
break;
case Wmf.SetROP2:
break;
case Wmf.SetRelabs:
break;
case Wmf.SetPolyFillMode:
int polyfillMode = GetInt16();
if (polyfillMode == Wmf.PfmAlernate)
fillRule = DFillRule.EvenOdd;
else
fillRule = DFillRule.Winding;
break;
case Wmf.SetStretchBltMode:
break;
case Wmf.DeleteObject:
WmfDeleteGdiObject(GetInt16());
break;
case Wmf.RestoreDC:
break;
case Wmf.SelectObject:
WmfSelectGdiObject(GetInt16());
break;
case Wmf.SetTextAlign:
break;
case Wmf.SetBkColor:
break;
case Wmf.SetTextColor:
break;
case Wmf.SetWindowOrg:
winY = GetInt16();
winX = GetInt16();
WmfUpdateMaxtrix(dg, m);
break;
case Wmf.SetWindowExt:
winHeight = GetInt16();
winWidth = GetInt16();
WmfUpdateMaxtrix(dg, m);
break;
case Wmf.SetViewportOrg:
viewY = GetInt16();
viewX = GetInt16();
//wmfUpdateMaxtrix(dg, m);
break;
case Wmf.SetViewportExt:
viewHeight = GetInt16();
viewWidth = GetInt16();
//wmfUpdateMaxtrix(dg, m);
break;
case Wmf.LineTo:
DPoint pt = GetPoint();
if (StrokeValid)
dg.DrawLine(curPoint, pt, stroke, 1, strokeStyle, strokeWidth, strokeCap);
curPoint = pt;
break;
case Wmf.MoveTo:
curPoint = GetPoint();
break;
case Wmf.SelectPalette:
break;
case Wmf.CreatePenIndirect:
int gdiPenStyle = GetInt16();
int widthX = GetInt16();
int widthY = GetInt16();
DColor penColor = GetColor();
double penWidth = widthX;
WmfApplyTransforms(ref penWidth);
DStrokeStyle penStyle = DStrokeStyle.Solid;
DStrokeCap penCap = DStrokeCap.Round;
DStrokeJoin penJoin = DStrokeJoin.Round;
if ((gdiPenStyle & Wmf.PS_DASHDOTDOT) == Wmf.PS_DASHDOTDOT)
penStyle = DStrokeStyle.DashDotDot;
else if ((gdiPenStyle & Wmf.PS_DASHDOT) == Wmf.PS_DASHDOT)
penStyle = DStrokeStyle.DashDot;
else if ((gdiPenStyle & Wmf.PS_DOT) == Wmf.PS_DOT)
penStyle = DStrokeStyle.Dot;
else if ((gdiPenStyle & Wmf.PS_DASH) == Wmf.PS_DASH)
penStyle = DStrokeStyle.Dash;
else
penStyle = DStrokeStyle.Solid;
if ((gdiPenStyle & Wmf.PS_ENDCAP_FLAT) == Wmf.PS_ENDCAP_FLAT)
penCap = DStrokeCap.Butt;
else if ((gdiPenStyle & Wmf.PS_ENDCAP_SQUARE) == Wmf.PS_ENDCAP_SQUARE)
penCap = DStrokeCap.Square;
else
penCap = DStrokeCap.Round;
if ((gdiPenStyle & Wmf.PS_JOIN_MITER) == Wmf.PS_JOIN_MITER)
penJoin = DStrokeJoin.Mitre;
else if ((gdiPenStyle & Wmf.PS_JOIN_BEVEL) == Wmf.PS_JOIN_BEVEL)
penJoin = DStrokeJoin.Bevel;
else
penJoin = DStrokeJoin.Round;
if ((gdiPenStyle & Wmf.PS_NULL) == Wmf.PS_NULL)
WmfAddGdiObject(new WmfGdiPen(DColor.Empty, penWidth, penStyle, penCap, penJoin));
else
WmfAddGdiObject(new WmfGdiPen(penColor, penWidth, penStyle, penCap, penJoin));
break;
case Wmf.CreateFontIndirect:
WmfAddGdiObject("font");
break;
case Wmf.CreateBrushIndirect:
int brushStyle = GetInt16();
DColor brushColor = GetColor();
int brushHatch = GetInt16();
if ((brushStyle & Wmf.BS_NULL) == Wmf.BS_NULL)
WmfAddGdiObject(new WmfGdiBrush(DColor.Empty));
else
WmfAddGdiObject(new WmfGdiBrush(brushColor));
break;
case Wmf.Polygon:
DPoints polygonPts = GetPolyPoints(GetInt16(), true);
if (FillValid)
dg.FillPolygon(polygonPts, fill, 1, fillRule);
if (StrokeValid)
dg.DrawPolyline(polygonPts, stroke, 1, strokeWidth, strokeStyle, strokeJoin, strokeCap);
break;
case Wmf.Polyline:
DPoints polylinePts = GetPolyPoints(GetInt16(), false);
if (StrokeValid)
dg.DrawPolyline(polylinePts, stroke, 1, strokeWidth, strokeStyle, strokeJoin, strokeCap);
break;
case Wmf.Ellipse:
goto case Wmf.Rectangle;
case Wmf.Rectangle:
DPoint br = GetPoint();
DPoint tl = GetPoint();
if (FillValid)
{
if (fh.Function == Wmf.Rectangle)
dg.FillRect(tl.X, tl.Y, br.X - tl.X, br.Y - tl.Y, fill, 1);
else if (fh.Function == Wmf.Ellipse)
dg.FillEllipse(tl.X, tl.Y, br.X - tl.X, br.Y - tl.Y, fill, 1);
}
if (StrokeValid)
{
if (fh.Function == Wmf.Rectangle)
dg.DrawRect(tl.X, tl.Y, br.X - tl.X, br.Y - tl.Y, stroke, 1, strokeWidth, strokeStyle, strokeJoin);
else if (fh.Function == Wmf.Ellipse)
dg.DrawEllipse(tl.X, tl.Y, br.X - tl.X, br.Y - tl.Y, stroke, 1, strokeWidth, strokeStyle);
}
break;
case Wmf.PolyPolygon:
// find out how many points
int numPolygons = GetInt16();
int[] numPoints = new int[numPolygons];
for (int i = 0; i < numPolygons; i++)
numPoints[i] = GetInt16();
// join polygons together
DPoints polyPolyPoints = new DPoints();
for (int i = 0; i < numPolygons; i++)
foreach (DPoint polyPolyPt in GetPolyPoints(numPoints[i], true))
polyPolyPoints.Add(polyPolyPt);
// draw
if (FillValid)
dg.FillPolygon(polyPolyPoints, fill, 1, fillRule);
if (StrokeValid)
dg.DrawPolyline(polyPolyPoints, stroke, 1, strokeWidth, strokeStyle, strokeJoin, strokeCap);
break;
case Wmf.Escape:
break;
default:
breakme = true;
break;
}
if (bytesRead != bytesReadPlusFuncHeaderSize)
bytesRead = bytesReadPlusFuncHeaderSize;
if (breakme)
break;
}
}
dg.Restore();
}
protected virtual void PaintLockHandle(DGraphics dg)
{
if (contextHandle)
{
double hb = _handleBorder * _controlScale;
double hb2 = hb + hb;
DRect r = GetContextHandleRect();
if (hb != 0)
r = r.Resize(hb, hb, -hb2, -hb2);
dg.FillEllipse(r, DColor.White);
dg.DrawEllipse(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, _controlScale, DStrokeStyle.Solid);
double qW = r.Width / 4;
double qH = r.Height / 4;
dg.DrawLine(new DPoint(r.X + qW, r.Y + qW), new DPoint(r.X + qW * 3, r.Y + qW * 3), DColor.Red);
dg.DrawLine(new DPoint(r.X + qW, r.Y + qW * 3), new DPoint(r.X + qW * 3, r.Y + qW), DColor.Red);
}
}
public void Paint(DGraphics dg, Figure backgroundFigure, IList<Figure> figures, Figure[] controlFigures)
{
// set antialias value
dg.AntiAlias = AntiAlias;
// draw backround and transform canvas accordind to the pagesize
if (Preview)
dg.Scale(Width / PageSize.X, Height / PageSize.Y); // scale to width & height as this is a preview viewer
else
{
dg.FillRect(0, 0, Width, Height, DColor.LightGray, 1); // gray background
DPoint offset = CanvasOffset();
dg.Translate(offset.X, offset.Y); // center drawing
dg.Scale(scale, scale); // scale canvas
dg.FillRect(SHADOW_OFFSET, SHADOW_OFFSET, PageSize.X, PageSize.Y, DColor.Black, 1); // draw black canvas shadow
}
// paint figures
if (backgroundFigure != null)
{
backgroundFigure.Width = PageSize.X;
backgroundFigure.Height = PageSize.Y;
backgroundFigure.Paint(dg);
}
if (!Preview && Grid > 0)
{
for (int i = 1; i < (PageSize.X / Grid); i++)
dg.DrawLine(new DPoint(i * grid, 0), new DPoint(i * grid, PageSize.Y), DColor.LightGray, 1, DStrokeStyle.Solid, 1, DStrokeCap.Butt);
for (int i = 1; i < (PageSize.Y / Grid); i++)
dg.DrawLine(new DPoint(0, i * grid), new DPoint(PageSize.X, i * grid), DColor.LightGray, 1, DStrokeStyle.Solid, 1, DStrokeCap.Butt);
}
double invScale = 1 / scale;
foreach (Figure figure in figures)
{
figure._controlScale = invScale;
figure.GlyphsVisible = editFigures;
figure.Paint(dg);
}
if (editFigures)
{
foreach (Figure figure in figures)
figure.PaintSelectionChrome(dg);
if (controlFigures != null)
foreach (Figure figure in controlFigures)
{
figure._controlScale = invScale;
figure.Paint(dg);
}
}
}
public virtual void PaintSelectionChrome(DGraphics dg)
{
if (Selected)
{
// save current transform
DMatrix m = dg.SaveTransform();
// apply transform
ApplyTransforms(dg, false);
// draw selection rectangle
DRect r = GetSelectRect();
double selectRectY = r.Y;
dg.DrawRect(r.X, r.Y, r.Width, r.Height, DColor.White, 1, _controlScale);
dg.DrawRect(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, _controlScale, DStrokeStyle.Dot, DStrokeJoin.Mitre);
if (Locked)
PaintLockHandle(dg);
else
{
// draw context handle
PaintContextHandle(dg);
// draw resize handle
double hb = _handleBorder * _controlScale;
double hb2 = hb + hb;
r = GetResizeHandleRect();
if (hb != 0)
r = r.Resize(hb, hb, -hb2, -hb2);
dg.FillEllipse(r, DColor.Red);
dg.DrawEllipse(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, _controlScale, DStrokeStyle.Solid);
// draw rotate handle
r = GetRotateHandleRect();
if (hb != 0)
r = r.Resize(hb, hb, -hb2, -hb2);
DPoint p1 = r.Center;
DPoint p2 = new DPoint(p1.X, selectRectY);
dg.DrawLine(p1, p2, DColor.White, 1, DStrokeStyle.Solid, _controlScale, DStrokeCap.Butt);
dg.DrawLine(p1, p2, DColor.Black, 1, DStrokeStyle.Dot, _controlScale, DStrokeCap.Butt);
dg.FillEllipse(r, DColor.Blue);
dg.DrawEllipse(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, _controlScale, DStrokeStyle.Solid);
}
//r = GetEncompassingRect();
//dg.DrawRect(r.X, r.Y, r.Width, r.Height, DColor.Black, 1, Scale);
// load previous transform
dg.LoadTransform(m);
}
}
public void Paint(DGraphics dg, Figure backgroundFigure, IList<Figure> figures)
{
// paint figures
if (backgroundFigure != null)
backgroundFigure.Paint(dg);
foreach (Figure figure in figures)
{
figure.GlyphsVisible = false;
figure.Paint(dg);
}
}
public virtual void PaintGlyphs(DGraphics dg)
{
if (glyphs != null && glyphs.Count > 0)
foreach (IGlyph g in glyphs)
if (g.IsVisible(selected))
g.Paint(dg, this, _controlScale);
}
public abstract void Paint(DGraphics dg, Figure f, double scale);
// viewer events
void dv_NeedRepaint(DTkViewer dv, DGraphics dg)
{
if (NeedRepaint != null)
NeedRepaint(dv, dg);
}
protected override void PaintBody(DGraphics dg)
{
dg.DrawRect(X, Y, Width, Height, DColor.White, Alpha, strokeWidth * _controlScale);
dg.DrawRect(X, Y, Width, Height, color, Alpha, strokeWidth * _controlScale, DStrokeStyle.Dot, DStrokeJoin.Mitre);
}
// viewer events
void dv_NeedRepaint(DTkViewer dv,DGraphics dg)
{
Figure[] controlFigures = null;
if (drawSelection || drawEraser)
{
controlFigures = new Figure[0];
if (drawSelection)
{
Array.Resize(ref controlFigures, controlFigures.Length + 1);
controlFigures[controlFigures.Length - 1] = figureHandler.SelectionFigure;
}
if (drawEraser)
{
Array.Resize(ref controlFigures, controlFigures.Length + 1);
controlFigures[controlFigures.Length - 1] = figureHandler.EraserFigure;
}
}
dv.Paint(dg, figureHandler.BackgroundFigure, figureHandler.Figures, controlFigures);
}
