static void DrawRoundRectangle(Xwt.Drawing.Context cr, double x, double y, double r, double w, double h)
{
const double ARC_TO_BEZIER = 0.55228475;
double radius_x = r;
double radius_y = r / 4;
if (radius_x > w - radius_x)
{
radius_x = w / 2;
}
if (radius_y > h - radius_y)
{
radius_y = h / 2;
}
double c1 = ARC_TO_BEZIER * radius_x;
double c2 = ARC_TO_BEZIER * radius_y;
cr.NewPath();
cr.MoveTo(x + radius_x, y);
cr.RelLineTo(w - 2 * radius_x, 0.0);
cr.RelCurveTo(c1, 0.0,
radius_x, c2,
radius_x, radius_y);
cr.RelLineTo(0, h - 2 * radius_y);
cr.RelCurveTo(0.0, c2, c1 - radius_x, radius_y, -radius_x, radius_y);
cr.RelLineTo(-w + 2 * radius_x, 0);
cr.RelCurveTo(-c1, 0, -radius_x, -c2, -radius_x, -radius_y);
cr.RelLineTo(0, -h + 2 * radius_y);
cr.RelCurveTo(0.0, -c2, radius_x - c1, -radius_y, radius_x, -radius_y);
cr.ClosePath();
}
private void DrawLine(Xwt.Drawing.Color c, BorderStyleEnum bs, float w, Xwt.Drawing.Context g, double x, double y, double x2, double y2)
{
if (bs == BorderStyleEnum.None || //|| c.IsEmpty
w <= 0) // nothing to draw
{
return;
}
g.Save();
// Pen p = null;
// p = new Pen(c, w);
g.SetColor(c);
g.SetLineWidth(w);
switch (bs)
{
case BorderStyleEnum.Dashed:
// p.DashStyle = DashStyle.Dash;
g.SetLineDash(0.0, new double[] { 2, 1 });
break;
case BorderStyleEnum.Dotted:
// p.DashStyle = DashStyle.Dot;
g.SetLineDash(0.0, new double[] { 1 });
break;
case BorderStyleEnum.Double:
case BorderStyleEnum.Groove:
case BorderStyleEnum.Inset:
case BorderStyleEnum.Solid:
case BorderStyleEnum.Outset:
case BorderStyleEnum.Ridge:
case BorderStyleEnum.WindowInset:
default:
g.SetLineDash(0.0, new double[] { });
break;
}
g.MoveTo(x, y);
g.LineTo(x2, y2);
g.Stroke();
g.Restore();
}
private void DrawString(PageText pt, Xwt.Drawing.Context g, Xwt.Rectangle r)
{
StyleInfo si = pt.SI;
string s = pt.Text;
g.Save();
layout = new Xwt.Drawing.TextLayout(g);
layout.Font = g.Font;
float fontsize = (si.FontSize * 72 / 96);
layout.Font.WithFamily(si.GetFontFamily().Name);
layout.Font.WithPixelSize(fontsize * PixelsX(1));
if (si.FontStyle == FontStyleEnum.Italic)
{
layout.Font.WithStyle(Xwt.Drawing.FontStyle.Italic);
}
switch (si.FontWeight)
{
case FontWeightEnum.Bold:
case FontWeightEnum.Bolder:
case FontWeightEnum.W500:
case FontWeightEnum.W600:
case FontWeightEnum.W700:
case FontWeightEnum.W800:
case FontWeightEnum.W900:
layout.Font.WithWeight(Xwt.Drawing.FontWeight.Bold);
break;
}
// TODO: Fix Alignment
//switch (si.TextAlign)
//{
// case TextAlignEnum.Right:
// layout.Alignment = Pango.Alignment.Right;
// break;
// case TextAlignEnum.Center:
// layout.Alignment = Pango.Alignment.Center;
// break;
// case TextAlignEnum.Left:
// default:
// layout.Alignment = Pango.Alignment.Left;
// break;
//}
// TODO: Fix with
//layout.Width = Pango.Units.FromPixels((int)(r.Width - si.PaddingLeft - si.PaddingRight - 2));
layout.Text = s;
//Xwt.Rectangle logical;
// Xwt.Rectangle ink;
// TODO: Fix
//layout.GetExtents(out ink, out logical);
double height = 12; // logical.Height / Pango.Scale.PangoScale;
double y = 0;
switch (si.VerticalAlign)
{
case VerticalAlignEnum.Top:
y = r.Y + si.PaddingTop;
break;
case VerticalAlignEnum.Middle:
y = r.Y + (r.Height - height) / 2;
break;
case VerticalAlignEnum.Bottom:
y = r.Y + (r.Height - height) - si.PaddingBottom;
break;
}
// draw the background
DrawBackground(g, r, si);
Xwt.Rectangle box = new Xwt.Rectangle(
r.X + si.PaddingLeft + 1,
y,
r.Width,
r.Height);
Xwt.Drawing.Color sicolor = XwtColor.SystemColorToXwtColor(si.Color);
g.SetColor(sicolor);
g.MoveTo(box.X, box.Y);
g.DrawTextLayout(layout, box.X, box.Y);
g.Restore();
}