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public CurveTo ( |
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| p1 | ||
| p2 | ||
| p3 | ||
| Результат | void | |
void DrawCurveTabs(Cairo.Context cr, Cairo.Rectangle rectangle)
{
if (IsSeparator)
{
return;
}
cr.MoveTo(rectangle.X, rectangle.Y);
double bottom = rectangle.Y + rectangle.Height - 1;
cr.CurveTo(
rectangle.X + SpacerWidth / 2, rectangle.Y,
rectangle.X + SpacerWidth / 2, bottom,
rectangle.X + SpacerWidth, bottom);
cr.LineTo(rectangle.X + rectangle.Width - SpacerWidth, bottom);
cr.CurveTo(
rectangle.X + rectangle.Width - SpacerWidth / 2, bottom,
rectangle.X + rectangle.Width - SpacerWidth / 2, rectangle.Y,
rectangle.X + rectangle.Width, rectangle.Y);
cr.Color = (HslColor)parent.Style.Dark(StateType.Normal);
cr.StrokePreserve();
cr.ClosePath();
if (Active)
{
cr.Color = (HslColor)parent.Style.Background(StateType.Prelight);
}
else if (HoverPosition.X >= 0)
{
double rx = rectangle.X + HoverPosition.X;
double ry = rectangle.Y + HoverPosition.Y;
Cairo.RadialGradient gradient = new Cairo.RadialGradient(rx, ry, rectangle.Height * 1.5,
rx, ry, 2);
var color = (HslColor)parent.Style.Mid(StateType.Normal);
color.L *= 1.05;
gradient.AddColorStop(0, color);
color.L *= 1.07;
gradient.AddColorStop(1, color);
cr.Pattern = gradient;
}
else
{
cr.Color = (HslColor)parent.Style.Mid(StateType.Normal);
}
cr.Fill();
cr.Save();
cr.Translate(rectangle.X + (rectangle.Width - w) / 2, (rectangle.Height - h) / 2);
cr.Color = (HslColor)parent.Style.Text(StateType.Normal);
cr.ShowLayout(layout);
cr.Restore();
}
protected void DrawCurvedRectangle(Cairo.Context gr, double x, double y, double width, double height)
{
gr.Save();
gr.MoveTo(x, y + height / 2);
gr.CurveTo(x, y, x, y, x + width / 2, y);
gr.CurveTo(x + width, y, x + width, y, x + width, y + height / 2);
gr.CurveTo(x + width, y + height, x + width, y + height, x + width / 2, y + height);
gr.CurveTo(x, y + height, x, y + height, x, y + height / 2);
gr.Restore();
}
private void DrawCurvedRectangle(Cairo.Context gr)
{
double x = 0, y = 0;
gr.Save();
gr.MoveTo(x, y + Height / 2);
gr.CurveTo(x, y, x, y, x + Width / 2, y);
gr.CurveTo(x + Width, y, x + Width, y, x + Width, y + Height / 2);
gr.CurveTo(x + Width, y + Height, x + Width, y + Height, x + Width / 2, y + Height);
gr.CurveTo(x, y + Height, x, y + Height, x, y + Height / 2);
gr.Restore();
}
public static void RoundedRectangle(Cairo.Context cr, float x, float y,
float w, float h, float r)
{
cr.MoveTo(x + r, y);
cr.LineTo(x + w - r, y);
cr.CurveTo(x + w, y, x + w, y, x + w, y + r);
cr.LineTo(x + w, y + h - r);
cr.CurveTo(x + w, y + h, x + w, y + h, x + w - r, y + h);
cr.LineTo(x + r, y + h);
cr.CurveTo(x, y + h, x, y + h, x, y + h - r);
cr.LineTo(x, y + r);
cr.CurveTo(x, y, x, y, x + r, y);
}
static void draw(Cairo.Context gr, int width, int height)
{
double x = 0.1, y = 0.5;
double x1 = 0.4, y1 = 0.9, x2 = 0.6, y2 = 0.1, x3 = 0.9, y3 = 0.5;
gr.Scale(width, height);
gr.LineWidth = 0.04;
gr.MoveTo(new PointD(x, y));
gr.CurveTo(new PointD(x1, y1),
new PointD(x2, y2),
new PointD(x3, y3)
);
gr.Stroke();
gr.Color = new Color(1, 0.2, 0.2, 0.6);
gr.LineWidth = 0.03;
gr.MoveTo(new PointD(x, y));
gr.LineTo(new PointD(x1, y1));
gr.MoveTo(new PointD(x2, y2));
gr.LineTo(new PointD(x3, y3));
gr.Stroke();
}
static void draw(Cairo.Context gr, int width, int height)
{
gr.Scale(width, height);
gr.LineWidth = 0.04;
gr.MoveTo(new PointD(0.5, 0.1));
gr.LineTo(new PointD(0.9, 0.9));
gr.RelLineTo(new Distance(-0.4, 0.0));
gr.CurveTo(new PointD(0.2, 0.9),
new PointD(0.2, 0.5),
new PointD(0.5, 0.5)
);
gr.ClosePath();
gr.MoveTo(new PointD(0.25, 0.1));
gr.RelLineTo(new Distance(0.2, 0.2));
gr.RelLineTo(new Distance(-0.2, 0.2));
gr.RelLineTo(new Distance(-0.2, -0.2));
gr.ClosePath();
gr.Color = new Color(0, 0, 1, 1);
gr.FillPreserve();
gr.Color = new Color(0, 0, 0, 1);
gr.Stroke();
}
void LayoutTabBorder(Cairo.Context ctx, Gdk.Rectangle allocation, int contentWidth, int px, int margin, bool active = true)
{
double x = 0.5 + (double)px;
double y = (double)allocation.Height + 0.5 - BottomBarPadding + margin;
double height = allocation.Height - TopBarPadding - BottomBarPadding;
x += TabSpacing + margin;
contentWidth -= (TabSpacing + margin) * 2;
double rightx = x + contentWidth;
int lean = Math.Min(LeanWidth, contentWidth / 2);
int halfLean = lean / 2;
int smoothing = 2;
if (active)
{
ctx.MoveTo(0, y + 0.5);
ctx.LineTo(0, y);
ctx.LineTo(x - halfLean, y);
}
else
{
ctx.MoveTo(x - halfLean, y + 0.5);
ctx.LineTo(x - halfLean, y);
}
ctx.CurveTo(new PointD(x + smoothing, y),
new PointD(x - smoothing, y - height),
new PointD(x + halfLean, y - height));
ctx.LineTo(rightx - halfLean, y - height);
ctx.CurveTo(new PointD(rightx + smoothing, y - height),
new PointD(rightx - smoothing, y),
new PointD(rightx + halfLean, y));
if (active)
{
ctx.LineTo(allocation.Width, y);
ctx.LineTo(allocation.Width, y + 0.5);
}
else
{
ctx.LineTo(rightx + halfLean, y + 0.5);
}
}
private void DrawConnection(Cairo.Context gc, PointD start, PointD c1, PointD c2, PointD end)
{
gc.Save();
gc.LineWidth = (2.0 / this.ScaleFactor);
gc.Color = connectionGreen;
gc.MoveTo(start.X, start.Y);
gc.CurveTo(c1.X, c1.Y, c2.X, c2.Y, end.X, end.Y);
gc.Stroke();
gc.Restore();
}
/// <summary>Paint on the graphics context</summary>
/// <param name="context">The graphics context to draw on</param>
public override void Paint(Cairo.Context context)
{
CalcBezPoints();
if (BezPoints.Count != 0)
{
// Create point for upper-left corner of drawing.
context.NewPath();
if (Selected)
{
context.SetSourceColor(OxyColors.Blue);
}
else
{
context.SetSourceColor(Colour);
}
// Draw text if necessary
if (Name != null)
{
DGNode.DrawCentredText(context, Name, Location);
}
context.MoveTo(BezPoints[0]);
PointD controlPoint = new PointD(Location.X, Location.Y);
context.CurveTo(controlPoint, controlPoint, BezPoints[BezPoints.Count - 1]);
context.Stroke();
// find closest point in the bezPoints to the intersection point that is outside the target
// work backwards through BezPoints array and use the first one that is outside the target
for (int i = BezPoints.Count - 1; i >= 0; i--)
{
PointD arrowHead;
if (!TargetNode.HitTest(BezPoints[i]))
{
arrowHead = BezPoints[i];
i--;
//keep moving along the line until distance = target radius
double targetRadius = TargetNode.Width / 2;
while (i >= 0)
{
double dist = GetDistance(BezPoints[i], arrowHead);
if (dist >= 20)
{
DrawArrow(context, BezPoints[i], arrowHead);
break;
}
i--;
}
break;
}
}
}
}
protected override Gdk.Rectangle OnMouseMove (Context g, Color strokeColor, ImageSurface surface,
int x, int y, int lastX, int lastY)
{
int line_width = (int)g.LineWidth;
int size;
// we want a minimum size of 2 for the splatter (except for when the brush width is 1), since a splatter of size 1 is very small
if (line_width == 1)
{
size = 1;
}
else
{
size = Random.Next (2, line_width);
}
Rectangle r = new Rectangle (x - Random.Next (-15, 15), y - Random.Next (-15, 15), size, size);
double rx = r.Width / 2;
double ry = r.Height / 2;
double cx = r.X + rx;
double cy = r.Y + ry;
double c1 = 0.552285;
g.Save ();
g.MoveTo (cx + rx, cy);
g.CurveTo (cx + rx, cy - c1 * ry, cx + c1 * rx, cy - ry, cx, cy - ry);
g.CurveTo (cx - c1 * rx, cy - ry, cx - rx, cy - c1 * ry, cx - rx, cy);
g.CurveTo (cx - rx, cy + c1 * ry, cx - c1 * rx, cy + ry, cx, cy + ry);
g.CurveTo (cx + c1 * rx, cy + ry, cx + rx, cy + c1 * ry, cx + rx, cy);
g.ClosePath ();
Rectangle dirty = g.FixedStrokeExtents ();
g.Fill ();
g.Restore ();
return dirty.ToGdkRectangle ();
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
using (System.Drawing.Graphics graphics = e.Graphics)
{
using (Win32Surface surface = new Win32Surface(graphics.GetHdc()))
{
using (Context context = new Context(surface))
{
context.LineWidth = 2.0;
context.SetSourceColor(this.bugColor);
context.MoveTo(7.0, 64.0);
context.CurveTo(1.0, 47.0, 2.0, 46.0, 9.0, 51.0);
context.MoveTo(25.0, 80.0);
context.CurveTo(10.0, 73.0, 11.0, 70.0, 14.0, 63.0);
context.MoveTo(10.0, 41.0);
context.CurveTo(2.0, 36.0, 1.0, 33.0, 1.0, 26.0);
context.LineWidth = 1.0;
context.MoveTo(1.0, 26.0);
context.CurveTo(5.0, 23.0, 7.0, 18.0, 12.0, 17.0);
context.LineTo(12.0, 14.0);
context.Stroke();
context.MoveTo(30.0, 74.0);
context.CurveTo(14.0, 64.0, 10.0, 48.0, 11.0, 46.0);
context.LineTo(10.0, 45.0);
context.LineTo(10.0, 40.0);
context.CurveTo(13.0, 37.0, 15.0, 35.0, 19.0, 34.0);
context.Stroke();
}
}
}
}
public static void CurvedRectangle(Cairo.Context c, RectangleD rect, double radius)
{
if (rect.Width < (radius * 2.0))
{
radius = rect.Width / 2.0;
}
if (rect.Height < (radius * 2.0))
{
radius = rect.Height / 2.0;
}
c.MoveTo(rect.X, rect.Y + radius);
c.LineTo(rect.X, rect.Y2 - radius);
c.CurveTo(rect.X, rect.Y2 - radius, rect.X, rect.Y2, rect.X + radius, rect.Y2);
c.LineTo(rect.X2 - radius, rect.Y2);
c.CurveTo(rect.X2 - radius, rect.Y2, rect.X2, rect.Y2, rect.X2, rect.Y2 - radius);
c.LineTo(rect.X2, rect.Y + radius);
c.CurveTo(rect.X2, rect.Y + radius, rect.X2, rect.Y, rect.X2 - radius, rect.Y);
c.LineTo(rect.X + radius, rect.Y);
c.CurveTo(rect.X + radius, rect.Y, rect.X, rect.Y, rect.X, rect.Y + radius);
c.ClosePath();
}
// public void BeginPrint(object o, BeginPrintArgs args)
// {
// Console.WriteLine("BeginPrint");
// }
public void DrawPage(object o, DrawPageArgs args)
{
Console.WriteLine("DrawPage");
Pango.Layout layout;
int textWidth, textHeight;
double width;
FontDescription desc;
Cairo.Context con = args.Context.CairoContext;
width = args.Context.Width;
// Rectangle
con.Rectangle(0, 0, width, HEADER_HEIGHT);
con.Color = new Cairo.Color(1, 0.2, 0.2, 0.6);
con.FillPreserve();
// Draw another thing
con.Color = new Cairo.Color(0, 0, 0);
con.LineWidth = 1;
con.Stroke();
con.Color = new Cairo.Color(0, 0, 0);
con.MoveTo(20, 200);
con.CurveTo(40, 270, 120, 165, 70, 60);
con.Stroke();
con.MoveTo(30, 100);
con.LineTo(60, 80);
con.Stroke();
con.Color = new Cairo.Color(0, 0, 0);
layout = args.Context.CreatePangoLayout();
layout.SetText("Prueba con Pango");
desc = FontDescription.FromString("arial 14");
layout.FontDescription = desc;
layout.GetPixelSize(out textWidth, out textHeight);
if (textWidth > width)
{
layout.Width = (int)width;
layout.Ellipsize = EllipsizeMode.Start;
layout.GetPixelSize(out textWidth, out textHeight);
}
con.MoveTo((width - textWidth) / 2, (HEADER_HEIGHT - textHeight) / 2);
Pango.CairoHelper.ShowLayout(con, layout);
}
public static void CurvedCell(Cairo.Context gr, int i, int j, double radius, bool rotate)
{
double cellsize = radius * 2;
double x = cellsize * i, y = cellsize * j;
gr.Save();
if (rotate)
{
gr.MoveTo(x + cellsize, y + radius);
gr.CurveTo(x + radius, y + radius, x + radius, y + radius, x + radius, y + cellsize);
gr.MoveTo(x + radius, y);
gr.CurveTo(x + radius, y + radius, x + radius, y + radius, x, y + radius);
}
else
{
gr.MoveTo(x + radius, y);
gr.CurveTo(x + radius, y + radius, x + radius, y + radius, x + cellsize, y + radius);
gr.MoveTo(x, y + radius);
gr.CurveTo(x + radius, y + radius, x + radius, y + radius, x + radius, y + cellsize);
}
gr.Restore();
}
void LetsDraw(object sender, ExposeEventArgs args)
{
DrawingArea darea = (DrawingArea)sender;
Cairo.Context shape = Gdk.CairoHelper.Create(darea.GdkWindow);
//Write the shape code
shape.SetSourceRGB(0.2, 0.5, 0.7); // set the color
shape.MoveTo(25, 130);
shape.CurveTo(100, 235, 165, 25, 255, 130); //our curve line
shape.StrokePreserve();
shape.Fill();
((IDisposable)shape).Dispose();
}
public void Execute(Context ctx)
{
PointD point;
var first = true;
using (var mpath = ctx.CopyPath())
{
var path = mpath.GetPath();
for (var i = 0; i < path.num_data; )
{
var hdr = path.GetPathHeader(i); //hdr.Dump();
switch (hdr.type)
{
case NativePath.cairo_path_data_type_t.CAIRO_PATH_MOVE_TO:
if (first)
{
ctx.NewPath();
first = false;
}
point = path.GetPathPoint(i + 1);
ctx.MoveTo(WarpPoint(point));
break;
case NativePath.cairo_path_data_type_t.CAIRO_PATH_LINE_TO:
point = path.GetPathPoint(i + 1);
ctx.LineTo(WarpPoint(point));
break;
case NativePath.cairo_path_data_type_t.CAIRO_PATH_CURVE_TO:
var p1 = WarpPoint(path.GetPathPoint(i + 1));
var p2 = WarpPoint(path.GetPathPoint(i + 2));
var p3 = WarpPoint(path.GetPathPoint(i + 3));
ctx.CurveTo(p1, p2, p3);
break;
case NativePath.cairo_path_data_type_t.CAIRO_PATH_CLOSE_PATH:
ctx.ClosePath();
break;
}
i += hdr.length;
}
}
}
public void curve_to(Context cr, int width, int height)
{
double x=0.1, y=0.5;
double x1=0.4, y1=0.9, x2=0.6, y2=0.1, x3=0.9, y3=0.5;
Normalize (cr, width, height);
cr.MoveTo(x, y);
cr.CurveTo(x1, y1, x2, y2, x3, y3);
cr.Stroke();
cr.Color = new Color (1, 0.2, 0.2, 0.6);
cr.LineWidth = 0.03;
cr.MoveTo(x,y);
cr.LineTo(x1,y1);
cr.MoveTo(x2,y2);
cr.LineTo(x3,y3);
cr.Stroke();
}
static void LayoutTabBorder (Context ctx, Gdk.Rectangle allocation, int contentWidth, int px, int margin, bool active = true)
{
double x = 0.5 + (double)px;
double y = (double)allocation.Height + 0.5 - BottomBarPadding + margin;
double height = allocation.Height - TopBarPadding - BottomBarPadding;
x += TabSpacing + margin;
contentWidth -= (TabSpacing + margin) * 2;
double rightx = x + contentWidth;
int lean = Math.Min (LeanWidth, contentWidth / 2);
int halfLean = lean / 2;
const int smoothing = 2;
if (active) {
ctx.MoveTo (0, y + 0.5);
ctx.LineTo (0, y);
ctx.LineTo (x - halfLean, y);
} else {
ctx.MoveTo (x - halfLean, y + 0.5);
ctx.LineTo (x - halfLean, y);
}
ctx.CurveTo (new PointD (x + smoothing, y),
new PointD (x - smoothing, y - height),
new PointD (x + halfLean, y - height));
ctx.LineTo (rightx - halfLean, y - height);
ctx.CurveTo (new PointD (rightx + smoothing, y - height),
new PointD (rightx - smoothing, y),
new PointD (rightx + halfLean, y));
if (active) {
ctx.LineTo (allocation.Width, y);
ctx.LineTo (allocation.Width, y + 0.5);
} else {
ctx.LineTo (rightx + halfLean, y + 0.5);
}
}
public static void RoundedRectangle (Context cr,
Gdk.Rectangle area,
int radius,
Corners corners)
{
// Top Line
cr.MoveTo (area.X + radius + m_Offset, area.Y + m_Offset);
cr.LineTo (area.X + area.Width - radius - m_Offset,
area.Y + m_Offset);
// Top Right Corner
if ((corners & Corners.TopRight) > 0) {
cr.CurveTo (area.X + area.Width - radius - m_Offset,
area.Y + m_Offset,
area.X + area.Width,
area.Y,
area.X + area.Width - m_Offset,
area.Y + radius + m_Offset);
}
else {
cr.LineTo (area.X + area.Width - m_Offset,
area.Y + m_Offset);
cr.LineTo (area.X + area.Width - m_Offset,
area.Y + m_Offset + radius);
}
// Right Line
cr.LineTo (area.X + area.Width - m_Offset,
area.Y + area.Height - radius - m_Offset);
// Bottom Right Corner
if ((corners & Corners.BottomRight) > 0) {
cr.CurveTo (area.X + area.Width - m_Offset,
area.Y + area.Height - m_Offset - radius,
area.X + area.Width,
area.Y + area.Height,
area.X + area.Width - m_Offset - radius,
area.Y + area.Height - m_Offset);
}
else {
cr.LineTo (area.X + area.Width - m_Offset,
area.Y + area.Height - m_Offset);
cr.LineTo (area.X + area.Width - m_Offset - radius,
area.Y + area.Height - m_Offset);
}
// Bottom Line
cr.LineTo (area.X + m_Offset + radius,
area.Y + area.Height - m_Offset);
// Bottom Left Corner
if ((corners & Corners.BottomLeft) > 0) {
cr.CurveTo (area.X + m_Offset + radius,
area.Y + area.Height - m_Offset,
area.X,
area.Y + area.Height,
area.X + m_Offset,
area.Y + area.Height - m_Offset - radius);
}
else {
cr.LineTo (area.X + m_Offset,
area.Y + area.Height - m_Offset);
cr.LineTo (area.X + m_Offset,
area.Y + area.Height - m_Offset - radius);
}
// Left Line
cr.LineTo (area.X + m_Offset,
area.Y + m_Offset + radius);
// Top Left Corner
if ((corners & Corners.TopLeft) > 0) {
cr.CurveTo (area.X + m_Offset,
area.Y + m_Offset + radius,
area.X,
area.Y,
area.X + m_Offset + radius,
area.Y + m_Offset);
}
else {
cr.LineTo (area.X + m_Offset, area.Y + m_Offset);
cr.LineTo (area.X + m_Offset + radius, area.Y + m_Offset);
}
}
public void xxx_dash(Context cr, int width, int height)
{
double[] dashes = new double[] {
0.20, // ink
0.05, // skip
0.05, // ink
0.05 // skip
};
double offset = -0.2;
Normalize(cr, width, height);
cr.SetDash(dashes, offset);
cr.MoveTo(0.5, 0.1);
cr.LineTo(0.9, 0.9);
cr.RelLineTo(-0.4, 0.0);
cr.CurveTo(0.2, 0.9, 0.2, 0.5, 0.5, 0.5);
cr.Stroke();
}
public void path(Context cr, int width, int height)
{
Normalize(cr, width, height);
cr.MoveTo(0.5, 0.1);
cr.LineTo(0.9, 0.9);
cr.RelLineTo(-0.4, 0.0);
cr.CurveTo(0.2, 0.9, 0.2, 0.5, 0.5, 0.5);
cr.Stroke();
}
public void fill_and_stroke2(Context cr, int width, int height)
{
Normalize (cr, width, height);
cr.MoveTo(0.5, 0.1);
cr.LineTo(0.9, 0.9);
cr.RelLineTo(-0.4, 0.0);
cr.CurveTo(0.2, 0.9, 0.2, 0.5, 0.5, 0.5);
cr.ClosePath();
cr.MoveTo(0.25, 0.1);
cr.RelLineTo(0.2, 0.2);
cr.RelLineTo(-0.2, 0.2);
cr.RelLineTo(-0.2, -0.2);
cr.ClosePath();
cr.Color = new Color (0, 0, 1);
cr.FillPreserve();
cr.Color = new Color (0, 0, 0);
cr.Stroke();
}
static void draw(Cairo.Context gr, int width, int height)
{
double x0 = 0.1;
double y0 = 0.1;
double rect_width = 0.8;
double rect_height = 0.8;
double radius = 0.4;
double x1, y1;
gr.Scale(width, height);
gr.LineWidth = 0.04;
x1 = x0 + rect_width;
y1 = y0 + rect_height;
if (rect_width == 0 || rect_height == 0)
{
return;
}
if (rect_width / 2 < radius)
{
if (rect_height / 2 < radius)
{
gr.MoveTo(new PointD(x0, (y0 + y1) / 2));
gr.CurveTo(new PointD(x0, y0),
new PointD(x0, y0),
new PointD((x0 + x1) / 2, y0)
);
gr.CurveTo(new PointD(x1, y0),
new PointD(x1, y0),
new PointD(x1, (y0 + y1) / 2)
);
gr.CurveTo(new PointD(x1, y1),
new PointD(x1, y1),
new PointD((x1 + x0) / 2, y1)
);
gr.CurveTo(new PointD(x0, y1),
new PointD(x0, y1),
new PointD(x0, (y0 + y1) / 2)
);
}
else
{
gr.MoveTo(new PointD(x0, y0 + radius));
gr.CurveTo(new PointD(x0, y0),
new PointD(x0, y0),
new PointD((x0 + x1) / 2, y0)
);
gr.CurveTo(new PointD(x1, y0),
new PointD(x1, y0),
new PointD(x1, y0 + radius)
);
gr.LineTo(new PointD(x1, y1 - radius));
gr.CurveTo(new PointD(x1, y1),
new PointD(x1, y1),
new PointD((x1 + x0) / 2, y1)
);
gr.CurveTo(new PointD(x0, y1),
new PointD(x0, y1),
new PointD(x0, y1 - radius)
);
}
}
else
{
if (rect_height / 2 < radius)
{
gr.MoveTo(new PointD(x0, (y0 + y1) / 2));
gr.CurveTo(new PointD(x0, y0),
new PointD(x0, y0),
new PointD(x0 + radius, y0)
);
gr.LineTo(new PointD(x1 - radius, y0));
gr.CurveTo(new PointD(x1, y0),
new PointD(x1, y0),
new PointD(x1, (y0 + y1) / 2)
);
gr.CurveTo(new PointD(x1, y1),
new PointD(x1, y1),
new PointD(x1 - radius, y1)
);
gr.LineTo(new PointD(x0 + radius, y1));
gr.CurveTo(new PointD(x0, y1),
new PointD(x0, y1),
new PointD(x0, (y0 + y1) / 2)
);
}
else
{
gr.MoveTo(new PointD(x0, y0 + radius));
gr.CurveTo(new PointD(x0, y0),
new PointD(x0, y0),
new PointD(x0 + radius, y0)
);
gr.LineTo(new PointD(x1 - radius, y0));
gr.CurveTo(new PointD(x1, y0),
new PointD(x1, y0),
new PointD(x1, y0 + radius)
);
gr.LineTo(new PointD(x1, y1 - radius));
gr.CurveTo(new PointD(x1, y1),
new PointD(x1, y1),
new PointD(x1 - radius, y1)
);
gr.LineTo(new PointD(x0 + radius, y1));
gr.CurveTo(new PointD(x0, y1),
new PointD(x0, y1),
new PointD(x0, y1 - radius)
);
}
}
gr.Color = new Color(0.5, 0.5, 1, 1);
gr.FillPreserve();
gr.Color = new Color(0.5, 0, 0, 0.5);
gr.Stroke();
}
public void CreateRoundedRectPath(Context gc, double x, double y, double width, double height, double radius)
{
double x1, y1;
x1 = x + width;
y1 = y + height;
if (width / 2 < radius) {
if (height / 2 < radius) {
gc.MoveTo (x, (y + y1) / 2);
gc.CurveTo (x ,y, x, y, (x + x1) / 2, y);
gc.CurveTo (x1, y, x1, y, x1, (y + y1) / 2);
gc.CurveTo (x1, y1, x1, y1, (x1 + x) / 2, y1);
gc.CurveTo (x, y1, x, y1, x, (y + y1) / 2);
} else {
gc.MoveTo (x, y + radius);
gc.CurveTo (x, y, x, y, (x + x1) / 2, y);
gc.CurveTo (x1, y, x1, y, x1, y + radius);
gc.LineTo (x1 , y1 - radius);
gc.CurveTo (x1, y1, x1, y1, (x1 + x) / 2, y1);
gc.CurveTo (x, y1, x, y1, x, y1 - radius);
}
} else {
if (height / 2 < radius) {
gc.MoveTo (x, (y + y1) / 2);
gc.CurveTo (x , y, x, y, x + radius, y);
gc.LineTo (x1 - radius, y);
gc.CurveTo (x1, y, x1, y, x1, (y + y1) / 2);
gc.CurveTo (x1, y1, x1, y1, x1 - radius, y1);
gc.LineTo (x + radius, y1);
gc.CurveTo (x, y1, x, y1, x, (y + y1) / 2);
} else {
gc.MoveTo (x, y + radius);
gc.CurveTo (x , y, x , y, x + radius, y);
gc.LineTo (x1 - radius, y);
gc.CurveTo (x1, y, x1, y, x1, y + radius);
gc.LineTo (x1, y1 - radius);
gc.CurveTo (x1, y1, x1, y1, x1 - radius, y1);
gc.LineTo (x + radius, y1);
gc.CurveTo (x, y1, x, y1, x, y1 - radius);
}
}
gc.ClosePath ();
}
public void curve_rectangle(Context cr, int width, int height)
{
// a custom shape, that could be wrapped in a function
double x0 = 0.1, //< parameters like cairo_rectangle
y0 = 0.1,
rect_width = 0.8,
rect_height = 0.8,
radius = 0.4; //< and an approximate curvature radius
double x1,y1;
Normalize(cr, width, height);
x1=x0+rect_width;
y1=y0+rect_height;
if (rect_width/2<radius) {
if (rect_height/2<radius) {
cr.MoveTo(x0, (y0 + y1)/2);
cr.CurveTo(x0 ,y0, x0, y0, (x0 + x1)/2, y0);
cr.CurveTo(x1, y0, x1, y0, x1, (y0 + y1)/2);
cr.CurveTo(x1, y1, x1, y1, (x1 + x0)/2, y1);
cr.CurveTo(x0, y1, x0, y1, x0, (y0 + y1)/2);
} else {
cr.MoveTo(x0, y0 + radius);
cr.CurveTo(x0 ,y0, x0, y0, (x0 + x1)/2, y0);
cr.CurveTo(x1, y0, x1, y0, x1, y0 + radius);
cr.LineTo(x1 , y1 - radius);
cr.CurveTo(x1, y1, x1, y1, (x1 + x0)/2, y1);
cr.CurveTo(x0, y1, x0, y1, x0, y1- radius);
}
} else {
if (rect_height/2<radius) {
cr.MoveTo(x0, (y0 + y1)/2);
cr.CurveTo(x0 , y0, x0 , y0, x0 + radius, y0);
cr.LineTo(x1 - radius, y0);
cr.CurveTo(x1, y0, x1, y0, x1, (y0 + y1)/2);
cr.CurveTo(x1, y1, x1, y1, x1 - radius, y1);
cr.LineTo(x0 + radius, y1);
cr.CurveTo(x0, y1, x0, y1, x0, (y0 + y1)/2);
} else {
cr.MoveTo(x0, y0 + radius);
cr.CurveTo(x0 , y0, x0 , y0, x0 + radius, y0);
cr.LineTo(x1 - radius, y0);
cr.CurveTo(x1, y0, x1, y0, x1, y0 + radius);
cr.LineTo(x1 , y1 - radius);
cr.CurveTo(x1, y1, x1, y1, x1 - radius, y1);
cr.LineTo(x0 + radius, y1);
cr.CurveTo(x0, y1, x0, y1, x0, y1- radius);
}
}
cr.ClosePath();
// and fill/stroke it
cr.Color = new Color (0.5, 0.5, 1);
cr.FillPreserve();
cr.Color = new Color (0.5, 0, 0, 0.5);
cr.Stroke();
}
private void Render(Clutter.CairoTexture texture, int with_state, bool outwards)
{
texture.Clear();
Cairo.Context context = texture.Create();
double alpha_f = with_state == 0 ? 0.5 : (with_state == 1 ? 0.8 : 1);
double lwidth = 1;
double hlwidth = lwidth * 0.5;
context.LineWidth = lwidth;
if (outwards)
{
context.MoveTo(texture.Width * 0.5 - texture.Height * 0.45, texture.Height * 0.9);
context.CurveTo(texture.Width * 0.3, texture.Height, texture.Width * 0.6, texture.Height, texture.Width * 0.5 + texture.Height * 0.45, texture.Height * 0.9);
context.ArcNegative(texture.Width * 0.5, texture.Height * 0.9, texture.Height * 0.45, 0, Math.PI);
context.ClosePath();
Gradient g1 = new LinearGradient(0, texture.Height / 2, 0, texture.Height);
g1.AddColorStop(0, new Cairo.Color(0.6, 0.6, 0.6, 1.0 * alpha_f));
g1.AddColorStop(1.0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
context.Pattern = g1;
context.FillPreserve();
context.SetSourceRGBA(1.0, 1.0, 1.0, 1.0 * alpha_f);
context.Stroke();
((IDisposable)g1).Dispose();
context.Arc(Width * 0.5, Height * 0.33 + lwidth, Height * 0.33, 0, Math.PI * 2);
context.ClosePath();
context.Operator = Operator.Source;
Gradient g2 = new RadialGradient(texture.Width * 0.5, texture.Height * 0.25, 0, texture.Width * 0.5, texture.Height * 0.25, texture.Width * 0.5);
g2.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g2.AddColorStop(1.0, new Cairo.Color(0.6, 0.6, 0.6, 1.0 * alpha_f));
context.Pattern = g2;
//context.SetSourceRGBA (1.0, 1.0, 1.0, 1.0*alpha_f);
context.FillPreserve();
Gradient g3 = new LinearGradient(0, 0, 0, texture.Height * 0.5);
g3.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g3.AddColorStop(1.0, new Cairo.Color(0, 0, 0, 1.0 * alpha_f));
context.Pattern = g3;
//context.SetSourceRGBA (1.0, 1.0, 1.0, 1.0*alpha_f);
context.Stroke();
((IDisposable)g2).Dispose();
((IDisposable)g3).Dispose();
}
else
{
Cairo.PointD c = new Cairo.PointD(texture.Width * 0.5, texture.Height * 0.5);
double max_r = Math.Min(c.X, c.Y) - hlwidth;
context.Arc(c.X, c.Y, max_r, 0, Math.PI * 2);
context.ArcNegative(c.X, c.Y, max_r * 0.25, Math.PI * 2, 0);
context.ClosePath();
context.SetSourceRGBA(0.5, 0.5, 0.5, 1.0 * alpha_f);
context.StrokePreserve();
Gradient g1 = new LinearGradient(0, texture.Height, texture.Width, 0);
g1.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g1.AddColorStop(0.5, new Cairo.Color(0.7, 0.7, 0.7, 1.0 * alpha_f));
g1.AddColorStop(1, new Cairo.Color(0.9, 0.9, 0.9, 1.0 * alpha_f));
context.Pattern = g1;
context.Fill();
((IDisposable)g1).Dispose();
context.ArcNegative(c.X, c.Y, max_r * 0.25 + lwidth, Math.PI * 1.75, Math.PI * 0.75);
context.Arc(c.X, c.Y, max_r, Math.PI * 0.75, Math.PI * 1.75);
context.ClosePath();
Gradient g2 = new LinearGradient(c.X, c.Y, c.X * 0.35, c.Y * 0.35);
g2.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 1.0 * alpha_f));
g2.AddColorStop(1, new Cairo.Color(1.0, 1.0, 1.0, 0.0));
context.Pattern = g2;
context.Fill();
((IDisposable)g2).Dispose();
context.ArcNegative(c.X, c.Y, max_r * 0.25 + lwidth, Math.PI * 2, 0);
context.Arc(c.X, c.Y, max_r * 0.45, 0, Math.PI * 2);
context.SetSourceRGBA(1.0, 1.0, 1.0, 0.8 * alpha_f);
context.Fill();
context.Arc(c.X, c.Y, max_r - lwidth, 0, Math.PI * 2);
Gradient g3 = new LinearGradient(0, texture.Height, texture.Width, 0);
g3.AddColorStop(0, new Cairo.Color(1.0, 1.0, 1.0, 0.0));
g3.AddColorStop(1, new Cairo.Color(0.9, 0.9, 0.9, 1.0 * alpha_f));
context.Pattern = g3;
context.Stroke();
((IDisposable)g3).Dispose();
}
((IDisposable)context.Target).Dispose();
((IDisposable)context).Dispose();
}
