本文整理汇总了C#中Xwt.Drawing.Context.CurveTo方法的典型用法代码示例。如果您正苦于以下问题：C# Context.CurveTo方法的具体用法？C# Context.CurveTo怎么用？C# Context.CurveTo使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Xwt.Drawing.Context的用法示例。
在下文中一共展示了Context.CurveTo方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Curves1
public virtual void Curves1(Context ctx, double x, double y)
{
ctx.Save ();
ctx.Translate (x, y);
ctx.SetLineWidth (1);
Action curve1 = () => {
ctx.MoveTo (0, 30);
ctx.CurveTo (20, 0, 50, 0, 60, 25);
};
// curve2 with lineTo; curve1 is closed
Action curve2 = () => {
ctx.LineTo (0, 0);
ctx.CurveTo (20, 30, 50, 30, 60, 5);
};
Action paint = () => {
curve1 ();
curve2 ();
ctx.ClosePath ();
ctx.SetColor (new Color (0, 0, 0, .5));
ctx.StrokePreserve ();
ctx.SetColor (new Color (1, 0, 1, .5));
ctx.Fill ();
};
paint ();
ctx.Translate (0, 40);
// curve2 with moveTo; curve1 is open
curve2 = () => {
ctx.MoveTo (0, 0);
ctx.CurveTo (20, 30, 50, 30, 60, 5);
};
paint ();
ctx.Restore ();
//Todo: same stuff with arc
}示例2: Curves2
public virtual void Curves2 (Context ctx, double sx, double sy)
{
ctx.Save ();
ctx.Translate (sx, sy);
ctx.SetColor (Colors.Black);
double x = 0, y = 40;
double x1 = y - x, y1 = x1 + y, x2 = x + y, y2 = x, x3 = y1, y3 = y;
ctx.MoveTo (x, y);
ctx.CurveTo (x1, y1, x2, y2, x3, y3);
ctx.SetLineWidth (2.0);
ctx.Stroke ();
ctx.SetColor (new Color (1, 0.2, 0.2, 0.6));
ctx.SetLineWidth (1.0);
ctx.MoveTo (x, y);
ctx.LineTo (x1, y1);
ctx.MoveTo (x2, y2);
ctx.LineTo (x3, y3);
ctx.Stroke ();
ctx.Restore ();
}示例3: DrawBorder
void DrawBorder(Context ctx, double x, double y, double w, double h, double radius, double thickness)
{
// test limits (without using multiplication)
if (radius > w - radius)
radius = w / 2;
if (radius > h - radius)
radius = h / 2;
// approximate (quite close) the arc using a bezier curve
double arc = ArcToBezier * radius;
ctx.SetLineWidth (thickness);
// top-left corner
ctx.NewPath ();
ctx.MoveTo (x, y + radius);
ctx.CurveTo (x, y + radius - arc, x + radius - arc, y, x + radius, y);
ctx.Pattern = GetCornerGradient (x + radius, y + radius, radius, thickness / 2);
ctx.Stroke ();
// top edge
ctx.NewPath ();
ctx.MoveTo (x + radius - 0.5, y);
ctx.LineTo (x + w - radius + 0.5, y);
ctx.Pattern = GetTopEdgeGradient (y, thickness / 2);
ctx.Stroke ();
// top-right corner
ctx.NewPath ();
ctx.MoveTo (x + w - radius, y);
ctx.CurveTo (x + w - radius + arc, y, x + w, y + arc, x + w, y + radius);
ctx.Pattern = GetCornerGradient (x + w - radius, y + radius, radius, thickness / 2);
ctx.Stroke ();
// right edge
ctx.NewPath ();
ctx.MoveTo (x + w, y + radius - 0.5);
ctx.LineTo (x + w, y + h - radius + 0.5);
ctx.Pattern = GetRightEdgeGradient (x + w, thickness / 2);
ctx.Stroke ();
// bottom-right corner
ctx.NewPath ();
ctx.MoveTo (x + w, y + h - radius);
ctx.CurveTo (x + w, y + h - radius + arc, x + w + arc - radius, y + h, x + w - radius, y + h);
ctx.Pattern = GetCornerGradient (x + w - radius, y + h - radius, radius, thickness / 2);
ctx.Stroke ();
// bottom edge
ctx.NewPath ();
ctx.MoveTo (x + w - radius + 0.5, y + h);
ctx.LineTo (x + radius - 0.5, y + h);
ctx.Pattern = GetBottomEdgeGradient (y + h, thickness / 2);
ctx.Stroke ();
// bottom-left corner
ctx.NewPath ();
ctx.MoveTo (x + radius, y + h);
ctx.CurveTo (x + radius - arc, y + h, x, y + h - arc, x, y + h - radius);
ctx.Pattern = GetCornerGradient (x + radius, y + h - radius, radius, thickness / 2);
ctx.Stroke ();
// left edge
ctx.NewPath ();
ctx.MoveTo (x, y + h - radius + 0.5);
ctx.LineTo (x, y + radius - 0.5);
ctx.Pattern = GetLeftEdgeGradient (x, thickness / 2);
ctx.Stroke ();
}示例4: OnDraw
/// <summary>
/// Raises the draw event.
/// </summary>
/// <param name="ctx">Context.</param>
/// <param name="dirtyRect">Dirty rect.</param>
protected override void OnDraw(Context ctx, Rectangle dirtyRect)
{
base.OnDraw(ctx, dirtyRect);
ctx.SetLineWidth(1.0);
if (previous != null && !previous.Active) {
ctx.SetColor(deactiveColor);
if (Multiple) {
ctx.Rectangle(0, 0, Lean.Dx * 2, Size.Height);
ctx.Fill();
ctx.SetColor(borderColor);
ctx.MoveTo(0, 0);
ctx.LineTo(Lean.Dx * 2, 0);
ctx.Stroke();
} else {
ctx.MoveTo(0, 0);
ctx.CurveTo(
0, 0,
Lean.Dx, 0,
Lean.Dx, Lean.Dy);
ctx.LineTo(Lean.Dx, Size.Height - Lean.Dy);
ctx.CurveTo(
Lean.Dx, Size.Height - Lean.Dy,
Lean.Dx, Size.Height + 0.5,
Lean.Dx * 2, Size.Height + 0.5);
ctx.LineTo(0, Size.Height);
ctx.FillPreserve();
ctx.SetColor(borderColor);
ctx.Stroke();
}
}
if (previous == null || Multiple || !previous.Active) {
ctx.MoveTo(0, Size.Height + 0.5);
ctx.CurveTo(
0, Size.Height + 0.5,
Lean.Dx, Size.Height + 0.5,
Lean.Dx, Size.Height - Lean.Dy);
} else {
ctx.MoveTo(Lean.Dx, Size.Height);
}
ctx.LineTo(Lean.Dx, Lean.Dy);
ctx.CurveTo(
Lean.Dx, Lean.Dy,
Lean.Dx, 0,
Lean.Dx * 2, 0);
if (next == null) {
ctx.LineTo(Size.Width - (Lean.Dx * 2), 0);
ctx.CurveTo(
Size.Width - (Lean.Dx * 2), 0,
Size.Width - Lean.Dx, 0,
Size.Width - Lean.Dx, Lean.Dy);
ctx.LineTo(Size.Width - Lean.Dx, Size.Height - Lean.Dy);
ctx.CurveTo(
Size.Width - Lean.Dx, Size.Height - Lean.Dy,
Size.Width - Lean.Dx, Size.Height,
Size.Width, Size.Height);
} else {
ctx.LineTo(Size.Width, 0);
ctx.LineTo(Size.Width, Size.Height);
}
ctx.SetColor(Active ? activeColor : deactiveColor);
ctx.Fill();
// border
if (previous == null || Multiple || !previous.Active) {
ctx.MoveTo(0, Size.Height + 0.5);
ctx.CurveTo(
0, Size.Height + 0.5,
Lean.Dx, Size.Height + 0.5,
Lean.Dx, Size.Height - Lean.Dy);
} else {
ctx.MoveTo(Lean.Dx, Size.Height + 0.5 - Lean.Dy);
}
ctx.LineTo(Lean.Dx, Lean.Dy);
ctx.CurveTo(
Lean.Dx, Lean.Dy,
Lean.Dx, 0,
Lean.Dx * 2, 0);
if (next == null) {
ctx.LineTo(Size.Width - (Lean.Dx * 2), 0);
ctx.CurveTo(
Size.Width - (Lean.Dx * 2), 0,
Size.Width - Lean.Dx, 0,
Size.Width - Lean.Dx, Lean.Dy);
ctx.LineTo(Size.Width - Lean.Dx, Size.Height - Lean.Dy);
ctx.CurveTo(
//.........这里部分代码省略.........