Control MetricsPreview()
{
metricsPreview = new Drawable {
Size = new Size(200, 100)
};
metricsPreview.Paint += (sender, pe) => {
var size = pe.Graphics.MeasureString(selectedFont, preview.Text);
var scale = this.ParentWindow.Screen.Scale;
var ypos = Math.Max(0, (selectedFont.Ascent * scale) - size.Height);
ypos += Math.Max(0, (metricsPreview.Size.Height - (selectedFont.LineHeight * scale)) / 2);
var baseline = ypos + (selectedFont.Baseline * scale);
pe.Graphics.DrawLine(Pens.Black(), 0, baseline, 200, baseline);
pe.Graphics.DrawText(selectedFont, Colors.Black, 0, ypos, preview.Text);
var ascender = baseline - selectedFont.Ascent * scale;
pe.Graphics.DrawLine(Pens.Blue(), 0, ascender, 200, ascender);
var descender = baseline + selectedFont.Descent * scale;
pe.Graphics.DrawLine(Pens.Red(), 0, descender, 200, descender);
var xheight = baseline - selectedFont.XHeight * scale;
pe.Graphics.DrawLine(Pens.Green(), 0, xheight, 200, xheight);
var lineheight = ypos + selectedFont.LineHeight * scale;
pe.Graphics.DrawLine(Pens.Orange(), 0, lineheight, 200, lineheight);
};
return(metricsPreview);
}
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(Pens.Blue(), Point.Empty, new Point(image.Size));
graphics.DrawRectangle(Pens.Black(), new Rectangle(image.Size - 1));
}
return new DrawableImageView { Image = image };
}
Control Default()
{
var control = new Drawable
{
Size = new Size(50, 50)
};
control.Paint += delegate(object sender, PaintEventArgs pe)
{
pe.Graphics.DrawLine(Pens.Black(), Point.Empty, new Point(control.Size));
};
LogEvents(control);
return(control);
}
Control WithBackground()
{
var control = new Drawable
{
Size = new Size(50, 50),
BackgroundColor = Colors.Lime
};
control.Paint += delegate(object sender, PaintEventArgs pe)
{
pe.Graphics.DrawLine(Pens.Black(), Point.Empty, new Point(control.Size));
};
LogEvents(control);
return(control);
}
Control MetricsPreview()
{
metricsPreview = new Drawable {
Size = new Size(200, 100)
};
metricsPreview.Paint += (sender, pe) =>
{
var width = metricsPreview.Size.Width;
pe.Graphics.PixelOffsetMode = PixelOffsetMode.Half;
pe.Graphics.DrawRectangle(Colors.Black, new RectangleF(metricsPreview.Size));
var size = pe.Graphics.MeasureString(selectedFont, preview.Text);
var scale = ParentWindow.Screen.Scale;
var ypos = Math.Max(0, (metricsPreview.Size.Height - size.Height) / 2);
pe.Graphics.FillRectangle(Brushes.GhostWhite(), new RectangleF(new PointF(0, ypos), size));
pe.Graphics.DrawText(selectedFont, Colors.Black, 0, ypos, preview.Text);
var baseline = ypos + selectedFont.Baseline * scale;
pe.Graphics.DrawLine(Pens.Black(), 0, baseline, width, baseline);
var ascender = baseline - selectedFont.Ascent * scale;
pe.Graphics.DrawLine(Pens.Blue(), 0, ascender, width, ascender);
var descender = baseline + selectedFont.Descent * scale;
pe.Graphics.DrawLine(Pens.Red(), 0, descender, width, descender);
var xheight = baseline - selectedFont.XHeight * scale;
pe.Graphics.DrawLine(Pens.Green(), 0, xheight, width, xheight);
var lineheight = ypos + selectedFont.LineHeight * scale;
pe.Graphics.DrawLine(Pens.Orange(), 0, lineheight, width, lineheight);
};
return(metricsPreview);
}
public Box(Size canvasSize, bool useTexturesAndGradients, DirectDrawingRenderer renderer)
{
this.renderer = renderer;
var size = new SizeF(random.Next(50) + 50, random.Next(50) + 50);
var location = new PointF(random.Next(canvasSize.Width - (int)size.Width), random.Next(canvasSize.Height - (int)size.Height));
position = new RectangleF(location, size);
increment = new SizeF(random.Next(3) + 1, random.Next(3) + 1);
if (random.Next(2) == 1)
{
increment.Width = -increment.Width;
}
if (random.Next(2) == 1)
{
increment.Height = -increment.Height;
}
angle = random.Next(360);
rotation = (random.Next(20) - 10f) / 4f;
var rect = new RectangleF(size);
color = GetRandomColor(random);
var colorPen = new Pen(color, generator: renderer.Generator);
var blackPen = Pens.Black(renderer.Generator);
var blackBrush = Brushes.Black(renderer.Generator);
switch (random.Next(useTexturesAndGradients ? 4 : 2))
{
case 0:
draw = g => g.DrawRectangle(colorPen, rect);
erase = g => g.DrawRectangle(blackPen, rect);
break;
case 1:
draw = g => g.DrawEllipse(colorPen, rect);
erase = g => g.DrawEllipse(blackPen, rect);
break;
case 2:
switch (random.Next(2))
{
case 0:
fillBrush = new LinearGradientBrush(GetRandomColor(random), GetRandomColor(random), PointF.Empty, new PointF(size.Width, size.Height), renderer.Generator);
break;
case 1:
fillBrush = new TextureBrush(renderer.texture, 1f, renderer.Generator)
{
Transform = Matrix.FromScale(size / 80, renderer.Generator)
};
break;
}
draw = g => g.FillEllipse(fillBrush, rect);
erase = g => g.FillEllipse(blackBrush, rect);
break;
case 3:
switch (random.Next(2))
{
case 0:
fillBrush = new LinearGradientBrush(GetRandomColor(random), GetRandomColor(random), PointF.Empty, new PointF(size.Width, size.Height), renderer.Generator);
break;
case 1:
fillBrush = new TextureBrush(renderer.texture, 1f, renderer.Generator)
{
Transform = Matrix.FromScale(size / 80, renderer.Generator)
};
break;
}
draw = g => g.FillRectangle(fillBrush, rect);
erase = g => g.FillRectangle(blackBrush, rect);
break;
}
}
