/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="dpi">The DPI of the source.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetRender(this Grid source, double dpi, System.Windows.Size?size = null)
{
var bounds = VisualTreeHelper.GetDescendantBounds(source);
var scale = Math.Round(dpi / 96d, 2);
var width = size?.Width ?? (bounds.Width + bounds.X) * scale;
var height = size?.Height ?? (bounds.Height + bounds.Y) * scale;
var rtb = new RenderTargetBitmap((int)Math.Round(width), (int)Math.Round(height), dpi, dpi, PixelFormats.Pbgra32);
var dv = new DrawingVisual();
using (var ctx = dv.RenderOpen())
{
var vb = new VisualBrush(source);
var locationRect = new System.Windows.Point(bounds.X, bounds.Y);
var sizeRect = new System.Windows.Size(bounds.Width, bounds.Height);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="dpi">The DPI of the source.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetRender(this Grid source, double dpi, System.Windows.Size size)
{
Rect bounds = VisualTreeHelper.GetDescendantBounds(source);
var scale = dpi / 96.0;
var width = (bounds.Width + bounds.X) * scale;
var height = (bounds.Height + bounds.Y) * scale;
var rtb = new RenderTargetBitmap((int)Math.Round(width, MidpointRounding.AwayFromZero),
(int)Math.Round(height, MidpointRounding.AwayFromZero), dpi, dpi, PixelFormats.Pbgra32);
DrawingVisual dv = new DrawingVisual();
using (DrawingContext ctx = dv.RenderOpen())
{
VisualBrush vb = new VisualBrush(source);
var locationRect = new System.Windows.Point(bounds.X, bounds.Y);
var sizeRect = new System.Windows.Size(bounds.Width, bounds.Height);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="scale">The scale of the screen.</param>
/// <param name="dpi">The DPI of the output.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetScaledRender(this UIElement source, double scale, double dpi, System.Windows.Size size)
{
var bounds = VisualTreeHelper.GetDescendantBounds(source);
//var width = (bounds.Width + bounds.X) * scale;
//var height = (bounds.Height + bounds.Y) * scale;
#region If no bounds
if (bounds.IsEmpty)
{
var control = source as FrameworkElement;
if (control != null)
{
bounds = new Rect(new System.Windows.Point(0d, 0d), new System.Windows.Point(control.ActualWidth * scale, control.ActualHeight * scale));
}
}
#endregion
var rtb = new RenderTargetBitmap((int)Math.Round(size.Width), (int)Math.Round(size.Height), dpi, dpi, PixelFormats.Pbgra32);
source.Clip = new RectangleGeometry(new Rect(0, 0, rtb.Width, rtb.Height));
source.ClipToBounds = true;
var dv = new DrawingVisual();
using (var ctx = dv.RenderOpen())
{
var vb = new VisualBrush(source)
{
AutoLayoutContent = false,
Stretch = Stretch.None
};
//I still need to fix this, when there's an element outside the bounds, it gets stretched.
//var locationRect = new System.Windows.Point(0 * scale, 0 * scale);
//var sizeRect = new System.Windows.Size(rtb.Width * scale, rtb.Height * scale);
var locationRect = new System.Windows.Point(bounds.X * scale, bounds.Y * scale);
var sizeRect = new System.Windows.Size(bounds.Width * scale, bounds.Height * scale);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="dpi">The DPI of the source.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetRender(this UIElement source, double dpi)
{
var bounds = VisualTreeHelper.GetDescendantBounds(source);
//TODO: Fix bounds when values are not rounded.
var scale = Math.Round(dpi / 96d, 2);
var width = (bounds.Width + bounds.X) * scale;
var height = (bounds.Height + bounds.Y) * scale;
#region If no bounds
if (bounds.IsEmpty)
{
var control = source as Control;
if (control != null)
{
width = control.ActualWidth * scale;
height = control.ActualHeight * scale;
}
bounds = new Rect(new System.Windows.Point(0d, 0d), new System.Windows.Point(width, height));
}
#endregion
var rtb = new RenderTargetBitmap((int)Math.Round(width), (int)Math.Round(height), dpi, dpi, PixelFormats.Pbgra32);
var dv = new DrawingVisual();
using (var ctx = dv.RenderOpen())
{
var vb = new VisualBrush(source);
var locationRect = new System.Windows.Point(bounds.X, bounds.Y);
var sizeRect = new System.Windows.Size((int)Math.Round(bounds.Width), (int)Math.Round(bounds.Height));
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="dpi">The DPI of the source.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetRender(this UIElement source, double dpi, System.Windows.Size size)
{
Rect bounds = VisualTreeHelper.GetDescendantBounds(source);
var scale = dpi / 96.0;
var width = (bounds.Width + bounds.X) * scale;
var height = (bounds.Height + bounds.Y) * scale;
#region If no bounds
if (bounds.IsEmpty)
{
var control = source as Control;
if (control != null)
{
width = control.ActualWidth * scale;
height = control.ActualHeight * scale;
}
bounds = new Rect(new System.Windows.Point(0d, 0d), new System.Windows.Point(width, height));
}
#endregion
var rtb = new RenderTargetBitmap((int)Math.Round(width, MidpointRounding.AwayFromZero),
(int)Math.Round(height, MidpointRounding.AwayFromZero), dpi, dpi, PixelFormats.Pbgra32);
DrawingVisual dv = new DrawingVisual();
using (DrawingContext ctx = dv.RenderOpen())
{
VisualBrush vb = new VisualBrush(source);
var locationRect = new System.Windows.Point(bounds.X, bounds.Y);
var sizeRect = new System.Windows.Size(bounds.Width, bounds.Height);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="scale">The scale of the UI element.</param>
/// <param name="dpi">The DPI of the source.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetScaledRender(this Grid source, double scale, double dpi, System.Windows.Size size)
{
var rtb = new RenderTargetBitmap((int)Math.Round(size.Width), (int)Math.Round(size.Height), dpi, dpi, PixelFormats.Pbgra32);
var dv = new DrawingVisual();
using (var ctx = dv.RenderOpen())
{
var vb = new VisualBrush(source);
//Gets the child bounds.
var bounds = VisualTreeHelper.GetDescendantBounds(source);
var locationRect = new System.Windows.Point(bounds.X * scale, bounds.Y * scale);
var sizeRect = new System.Windows.Size(bounds.Width * scale, bounds.Height * scale);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="scale"></param>
/// <param name="dpi">The DPI of the source.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetScaledRender(this UIElement source, double scale, double dpi, System.Windows.Size size)
{
var bounds = VisualTreeHelper.GetDescendantBounds(source);
//var width = (bounds.Width + bounds.X) * scale;
//var height = (bounds.Height + bounds.Y) * scale;
#region If no bounds
if (bounds.IsEmpty)
{
var control = source as FrameworkElement;
//if (control != null)
//{
var width = control.ActualWidth * scale;
var height = control.ActualHeight * scale;
//}
bounds = new Rect(new System.Windows.Point(0d, 0d), new System.Windows.Point(width, height));
}
#endregion
var rtb = new RenderTargetBitmap((int)Math.Round(size.Width), (int)Math.Round(size.Height), dpi, dpi, PixelFormats.Pbgra32);
var dv = new DrawingVisual();
using (var ctx = dv.RenderOpen())
{
var vb = new VisualBrush(source);
var locationRect = new System.Windows.Point(bounds.X * scale, bounds.Y * scale);
var sizeRect = new System.Windows.Size(bounds.Width * scale, bounds.Height * scale);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
return((RenderTargetBitmap)rtb.GetAsFrozen());
}
/// <summary>
/// Gets a render of the current UIElement
/// </summary>
/// <param name="source">UIElement to screenshot</param>
/// <param name="scale">The scale of the screen.</param>
/// <param name="dpi">The DPI of the output.</param>
/// <param name="size">The size of the destination image.</param>
/// <returns>An ImageSource</returns>
public static RenderTargetBitmap GetScaledRender(this UIElement source, double scale, double dpi, System.Windows.Size size)
{
var bounds = VisualTreeHelper.GetDescendantBounds(source);
//var width = (bounds.Width + bounds.X) * scale;
//var height = (bounds.Height + bounds.Y) * scale;
#region If no bounds
if (bounds.IsEmpty)
{
if (source is FrameworkElement control)
{
bounds = new Rect(new System.Windows.Point(0d, 0d), new System.Windows.Point(control.ActualWidth * scale, control.ActualHeight * scale));
}
}
#endregion
var rtb = new RenderTargetBitmap((int)Math.Round(size.Width), (int)Math.Round(size.Height), dpi, dpi, PixelFormats.Pbgra32);
//source.Clip = new RectangleGeometry(new Rect(0, 0, rtb.Width, rtb.Height));
//source.ClipToBounds = true;
var dv = new DrawingVisual();
using (var ctx = dv.RenderOpen())
{
var vb = new VisualBrush(source)
{
AutoLayoutContent = false,
Stretch = Stretch.Fill
};
var uiScale = source.Scale();
//Test with high dpi.
//For some reason, an InkCanvas with Strokes going beyond the bounds will report a strange bound even if clipped.
if (bounds.Width > size.Width / uiScale)
{
bounds.Width = size.Width / uiScale;
}
if (bounds.Height > size.Height / uiScale)
{
bounds.Height = size.Height / uiScale;
}
if (bounds.X < 0)
{
bounds.X = 0;
}
if (bounds.Y < 0)
{
bounds.Y = 0;
}
var locationRect = new System.Windows.Point(bounds.X * scale, bounds.Y * scale);
var sizeRect = new System.Windows.Size(bounds.Width * scale, bounds.Height * scale);
ctx.DrawRectangle(vb, null, new Rect(locationRect, sizeRect));
}
rtb.Render(dv);
//source.Clip = null;
return((RenderTargetBitmap)rtb.GetAsFrozen());
}