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);
}
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);
}
}
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);
}
}
}
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);
}
}
}