public static void Draw(DrawingContext c, KeyboardPropertiesModel props, AppliedProperties applied)
{
if (applied.Brush == null)
{
return;
}
const int scale = 4;
// Set up variables for this frame
var rect = props.Contain
? new Rect(applied.X * scale, applied.Y * scale, applied.Width * scale, applied.Height * scale)
: new Rect(props.X * scale, props.Y * scale, props.Width * scale, props.Height * scale);
var s1 = new Rect();
var s2 = new Rect();
if (props.Animation == LayerAnimation.SlideRight)
{
s1 = new Rect(new Point(rect.X + props.AnimationProgress, rect.Y), new Size(rect.Width, rect.Height));
s2 = new Rect(new Point(s1.X - rect.Width, rect.Y), new Size(rect.Width + 1, rect.Height));
}
if (props.Animation == LayerAnimation.SlideLeft)
{
s1 = new Rect(new Point(rect.X - props.AnimationProgress, rect.Y),
new Size(rect.Width + 0.05, rect.Height));
s2 = new Rect(new Point(s1.X + rect.Width, rect.Y), new Size(rect.Width, rect.Height));
}
if (props.Animation == LayerAnimation.SlideDown)
{
s1 = new Rect(new Point(rect.X, rect.Y + props.AnimationProgress), new Size(rect.Width, rect.Height));
s2 = new Rect(new Point(s1.X, s1.Y - rect.Height), new Size(rect.Width, rect.Height));
}
if (props.Animation == LayerAnimation.SlideUp)
{
s1 = new Rect(new Point(rect.X, rect.Y - props.AnimationProgress), new Size(rect.Width, rect.Height));
s2 = new Rect(new Point(s1.X, s1.Y + rect.Height), new Size(rect.Width, rect.Height));
}
var clip = new Rect(applied.X * scale, applied.Y * scale, applied.Width * scale, applied.Height * scale);
DrawRectangle(c, props, applied, clip, rect, s1, s2);
}
private static void DrawRectangle(DrawingContext c, KeyboardPropertiesModel props, AppliedProperties applied,
Rect clip, Rect rectangle, Rect slide1, Rect slide2)
{
// Apply the pulse animation
if (props.Animation == LayerAnimation.Pulse)
{
applied.Brush.Opacity = (Math.Sin(props.AnimationProgress * Math.PI) + 1) * (props.Opacity / 2);
}
else
{
applied.Brush.Opacity = props.Opacity;
}
if (props.Animation == LayerAnimation.Grow)
{
// Take an offset of 4 to allow layers to slightly leave their bounds
var progress = (6.0 - props.AnimationProgress) * 10.0;
if (progress < 0)
{
applied.Brush.Opacity = 1 + 0.025 * progress;
if (applied.Brush.Opacity < 0)
{
applied.Brush.Opacity = 0;
}
if (applied.Brush.Opacity > 1)
{
applied.Brush.Opacity = 1;
}
}
rectangle.Inflate(-rectangle.Width / 100.0 * progress, -rectangle.Height / 100.0 * progress);
clip.Inflate(-clip.Width / 100.0 * progress, -clip.Height / 100.0 * progress);
}
c.PushClip(new RectangleGeometry(clip));
// Most animation types can be drawn regularly
if (props.Animation == LayerAnimation.None ||
props.Animation == LayerAnimation.Grow ||
props.Animation == LayerAnimation.Pulse)
{
c.DrawRectangle(applied.Brush, null, rectangle);
}
// Sliding animations however, require offsetting two rects
else
{
c.PushClip(new RectangleGeometry(clip));
c.DrawRectangle(applied.Brush, null, slide1);
c.DrawRectangle(applied.Brush, null, slide2);
c.Pop();
}
c.Pop();
}
public static GifImage DrawGif(DrawingContext c, KeyboardPropertiesModel props, AppliedProperties applied,
GifImage gifImage)
{
if (string.IsNullOrEmpty(props.GifFile))
{
return(null);
}
if (!File.Exists(props.GifFile))
{
return(null);
}
const int scale = 4;
// Only reconstruct GifImage if the underlying source has changed
if (gifImage == null)
{
gifImage = new GifImage(props.GifFile);
}
if (gifImage.Source != props.GifFile)
{
gifImage = new GifImage(props.GifFile);
}
var gifRect = new Rect(applied.X * scale, applied.Y * scale, applied.Width * scale,
applied.Height * scale);
lock (gifImage)
{
var draw = gifImage.GetNextFrame();
c.DrawImage(ImageUtilities.BitmapToBitmapImage(new Bitmap(draw)), gifRect);
}
return(gifImage);
}
