public static void Draw(Graphics graphics)
{
var generator = graphics.Generator;
var image = TestIcons.TestImage(generator);
// lines
var whitePen = Pens.White(generator);
graphics.DrawLine(whitePen, 1, 1, 99, 99);
graphics.DrawLine(whitePen, 50, 1, 50, 99);
graphics.DrawLine(whitePen, 1, 51, 99, 51);
graphics.DrawRectangle(Pens.White(generator), 101, 1, 100, 100);
graphics.DrawRectangle(Pens.White(generator), 101, 1, 10, 10);
graphics.DrawEllipse(Pens.Green(generator), 101, 1, 100, 100);
graphics.DrawPolygon(Pens.White(generator), new PointF(203, 1), new PointF(253, 51), new Point(203, 101), new PointF(203, 1), new PointF(253, 1), new PointF(253, 101), new PointF(203, 101));
var rect = new RectangleF(255, 1, 100, 100);
graphics.DrawArc(Pens.LightGreen(generator), rect, 180, 90);
graphics.DrawArc(Pens.SkyBlue(generator), rect, 0, 90);
rect.Inflate(-15, 0);
graphics.DrawArc(Pens.FloralWhite(generator), rect, -45, 90);
rect.Inflate(-5, -20);
graphics.DrawArc(Pens.SlateGray(generator), rect, -45, 270);
rect.Inflate(-10, -10);
graphics.DrawArc(Pens.SteelBlue(generator), rect, 180 + 45, 270);
graphics.DrawImage(image, 100, 1, 100, 100);
graphics.DrawText(Fonts.Sans(12 * graphics.PointsPerPixel, generator: generator), Colors.White, 0, 104, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
// filled
graphics.FillRectangle(Brushes.White(generator), 101, 120, 100, 100);
graphics.FillRectangle(Brushes.Gray(generator), 101, 120, 10, 10);
graphics.FillEllipse(Brushes.Green(generator), 101, 120, 100, 100);
graphics.FillPolygon(Brushes.White(generator), new PointF(202, 120), new PointF(252, 170), new Point(202, 220), new PointF(202, 120));
rect = new RectangleF(255, 120, 100, 100);
graphics.FillPie(Brushes.LightGreen(generator), rect, 180, 90);
graphics.FillPie(Brushes.SkyBlue(generator), rect, 0, 90);
rect.Inflate(-15, 0);
graphics.FillPie(Brushes.FloralWhite(generator), rect, -45, 90);
rect.Inflate(-5, -20);
graphics.FillPie(Brushes.SlateGray(generator), rect, -45, 270);
rect.Inflate(-10, -10);
graphics.FillPie(Brushes.SteelBlue(generator), rect, 180 + 45, 270);
graphics.DrawImage(image, 101, 120, 100, 100);
}
Control CreateCustom32Alpha ()
{
var image = new Bitmap (100, 100, PixelFormat.Format32bppRgba);
// should always ensure .Dispose() is called when you are done with a Graphics object
using (var graphics = new Graphics (image)) {
graphics.DrawLine (Color.Blue, Point.Empty, new Point (image.Size));
graphics.DrawRectangle (Color.Black, new Rectangle (image.Size));
}
return new ImageView { Image = image };
}
void Draw(Graphics g)
{
if (brush == null)
return;
var rect = new RectangleF(0, 0, 200, 100);
/**/
//g.FillRectangle(brush, rect);
g.FillEllipse(brush, rect);
g.DrawEllipse(Colors.Black, rect);
/**/
rect = new RectangleF(0, 110, 200, 80);
g.FillRectangle(brush, rect);
g.DrawRectangle(Colors.Black, rect);
/**/
rect = new RectangleF(0, 200, 200, 80);
g.FillPie(brush, rect, 100, 240);
g.DrawArc(Colors.Black, rect, 100, 240);
/**/
var points = new[] { new PointF(300, 0), new PointF(350, 20), new PointF(400, 80), new PointF(320, 90) };
g.FillPolygon(brush, points);
g.DrawPolygon(Colors.Black, points);
/**/
}
/// <summary>
///
/// </summary>
/// <param name="gfx"></param>
/// <param name="brush"></param>
/// <param name="pen"></param>
/// <param name="isStroked"></param>
/// <param name="isFilled"></param>
/// <param name="rect"></param>
private static void DrawRectangleInternal(
Graphics gfx,
Brush brush,
Pen pen,
bool isStroked,
bool isFilled,
ref Rect2 rect)
{
if (isFilled)
{
gfx.FillRectangle(
brush,
(float)rect.X,
(float)rect.Y,
(float)rect.Width,
(float)rect.Height);
}
if (isStroked)
{
gfx.DrawRectangle(
pen,
(float)rect.X,
(float)rect.Y,
(float)rect.Width,
(float)rect.Height);
}
}
void Draw(Graphics g, Action<Pen> action)
{
var path = new GraphicsPath();
path.AddLines(new PointF(0, 0), new PointF(100, 40), new PointF(0, 30), new PointF(50, 70));
for (int i = 0; i < 4; i++)
{
float thickness = 1f + i * PenThickness;
var pen = new Pen(Colors.Black, thickness);
pen.LineCap = this.LineCap;
pen.LineJoin = this.LineJoin;
pen.DashStyle = this.DashStyle;
if (action != null)
action(pen);
var y = i * 20;
g.DrawLine(pen, 10, y, 110, y);
y = 80 + i * 50;
g.DrawRectangle(pen, 10, y, 100, 30);
y = i * 70;
g.DrawArc(pen, 140, y, 100, 80, 160, 160);
y = i * 70;
g.DrawEllipse(pen, 260, y, 100, 50);
g.SaveTransform();
y = i * 70;
g.TranslateTransform(400, y);
g.DrawPath(pen, path);
g.RestoreTransform();
}
}
void DrawTest(Bitmap image)
{
// should always ensure .Dispose() is called when you are done with a Graphics or BitmapData object.
// Test setting pixels directly
using (var bd = image.Lock())
{
var sz = image.Size / 5;
for (int x = sz.Width; x < sz.Width * 2; x++)
for (int y = sz.Height; y < sz.Height * 2; y++)
bd.SetPixel(x, y, Colors.Green);
}
// Test using Graphics object
using (var graphics = new Graphics(image))
{
graphics.DrawLine(Pens.Blue, Point.Empty, new Point(image.Size));
graphics.DrawRectangle(Pens.Blue, new Rectangle(image.Size - 1));
}
// should be able to set pixels after using graphics object
using (var bd = image.Lock())
{
var sz = image.Size / 5;
for (int x = sz.Width * 3; x < sz.Width * 4; x++)
for (int y = sz.Height * 3; y < sz.Height * 4; y++)
bd.SetPixel(x, y, Colors.Red);
}
}
public static void Draw(Graphics graphics)
{
var image = TestIcons.TestImage;
// lines
var whitePen = new Pen(Colors.White, 1);
graphics.DrawLine(whitePen, 1, 1, 99, 99);
graphics.DrawLine(whitePen, 50, 1, 50, 99);
graphics.DrawLine(whitePen, 1, 51, 99, 51);
graphics.DrawRectangle(whitePen, 101, 1, 100, 100);
graphics.DrawRectangle(whitePen, 101, 1, 10, 10);
graphics.DrawEllipse(Pens.Green, 101, 1, 100, 100);
graphics.DrawPolygon(whitePen, new PointF(203, 1), new PointF(253, 51), new Point(203, 101), new PointF(203, 1), new PointF(253, 1), new PointF(253, 101), new PointF(203, 101));
var rect = new RectangleF(255, 1, 100, 100);
graphics.DrawArc(Pens.LightGreen, rect, 180, 90);
graphics.DrawArc(Pens.SkyBlue, rect, 0, 90);
rect.Inflate(-15, 0);
graphics.DrawArc(Pens.FloralWhite, rect, -45, 90);
rect.Inflate(-5, -20);
graphics.DrawArc(Pens.SlateGray, rect, -45, 270);
rect.Inflate(-10, -10);
graphics.DrawArc(Pens.SteelBlue, rect, 180 + 45, 270);
graphics.DrawImage(image, 100, 1, 100, 100);
graphics.DrawText(Fonts.Sans(12 * graphics.PointsPerPixel), Colors.White, 0, 104, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
// filled
graphics.FillRectangle(Brushes.White, 101, 120, 100, 100);
graphics.FillRectangle(Brushes.Gray, 101, 120, 10, 10);
graphics.FillEllipse(Brushes.Green, 101, 120, 100, 100);
graphics.FillPolygon(Brushes.White, new PointF(202, 120), new PointF(252, 170), new Point(202, 220), new PointF(202, 120));
rect = new RectangleF(255, 120, 100, 100);
graphics.FillPie(Brushes.LightGreen, rect, 180, 90);
graphics.FillPie(Brushes.SkyBlue, rect, 0, 90);
rect.Inflate(-15, 0);
graphics.FillPie(Brushes.FloralWhite, rect, -45, 90);
rect.Inflate(-5, -20);
graphics.FillPie(Brushes.SlateGray, rect, -45, 270);
rect.Inflate(-10, -10);
graphics.FillPie(Brushes.SteelBlue, rect, 180 + 45, 270);
graphics.DrawImage(image, 101, 120, 100, 100);
const int offset = 440;
var xoffset = offset;
var yoffset = 112;
for (int i = 1; i < 14; i++)
{
var pen = new Pen(Colors.White, i);
pen.LineCap = PenLineCap.Butt;
graphics.DrawLine(pen, xoffset, 1, xoffset, 110);
graphics.DrawLine(pen, offset, yoffset, offset + 100, yoffset);
xoffset += i + 2;
yoffset += i + 2;
}
}
void Draw(Graphics g)
{
var matrix = Matrix.Create();
matrix.Translate(OffsetX, OffsetY);
matrix.Scale(Math.Max(ScaleX / 100f, 0.1f), Math.Max(ScaleY / 100f, 0.1f));
matrix.Rotate(Rotation);
var tb = brush as ITransformBrush;
if (tb != null)
{
tb.Transform = matrix;
}
var gb = brush as LinearGradientBrush;
if (gb != null)
{
gb.Wrap = GradientWrap;
}
var rect = new RectangleF(0, 0, 200, 100);
g.FillEllipse(brush, rect);
g.DrawEllipse(Colors.Black, rect);
rect = new RectangleF(0, 110, 200, 80);
g.FillRectangle(brush, rect);
g.DrawRectangle(Colors.Black, rect);
}
public Bitmap ToImageMask()
{
if (control.Image == null) return null;
Bitmap bmp = new Bitmap(control.Image.Width, control.Image.Height, PixelFormat.Format32bppRgba);
using (Graphics g = new Graphics(bmp))
{
//remember old color
var oldColor = Pen.Color;
Pen.Color = Colors.White;
g.DrawRectangle(Pen, rect);
//restore color
Pen.Color = oldColor;
}
return bmp;
}
