private List <Bitmap> GetImages(IWorkingZoneFramesContainer framesContainer, int spots)
{
float step = (float)framesContainer.Frames.Count / spots;
List <Bitmap> bitmaps = framesContainer.Frames.Select(f => f.Image).ToList();
return(bitmaps.Where((bmp, i) => i % step < 1).ToList());
}
public override void Activate(IWorkingZoneFramesContainer framesContainer, Action <InteractiveEffect> setInteractiveEffect)
{
// Should be quick so we don't go through the background thread.
if (framesContainer != null)
{
framesContainer.Revert();
}
}
public override void Activate(IWorkingZoneFramesContainer framesContainer, Action <InteractiveEffect> setInteractiveEffect)
{
InteractiveEffect effect = new InteractiveEffect();
// Usage of closures to capture internal state for the effect.
// The Parameter object will be shared between the delegates, but scoped to this InteractiveEffect instance.
Parameters p = new Parameters();
effect.Draw = (canvas, frames) => Draw(canvas, frames, p);
effect.MouseWheel = (scroll) => MouseWheel(scroll, p);
setInteractiveEffect(effect);
}
private void Draw(Graphics canvas, IWorkingZoneFramesContainer framesContainer, Parameters parameters)
{
if (parameters == null || framesContainer == null || framesContainer.Frames == null || framesContainer.Frames.Count < 1)
{
return;
}
List <Bitmap> selectedFrames = GetImages(framesContainer, parameters.Spots);
if (selectedFrames == null || selectedFrames.Count < 1)
{
return;
}
canvas.PixelOffsetMode = PixelOffsetMode.HighSpeed;
canvas.CompositingQuality = CompositingQuality.HighSpeed;
canvas.InterpolationMode = InterpolationMode.Bilinear;
canvas.SmoothingMode = SmoothingMode.HighQuality;
// We reserve n² placeholders, so we have exactly as many images on width than on height.
// Example: 32 images as input -> 6x6 images with the last 4 not filled.
// + each image must be scaled down by a factor of 1/6.
int n = (int)Math.Sqrt(parameters.Spots);
int thumbWidth = (int)canvas.VisibleClipBounds.Width / n;
int thumbHeight = (int)canvas.VisibleClipBounds.Height / n;
Rectangle rSrc = new Rectangle(0, 0, selectedFrames[0].Width, selectedFrames[0].Height);
Font f = new Font("Arial", GetFontSize(thumbWidth), FontStyle.Bold);
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
int iImageIndex = j * n + i;
if (iImageIndex >= selectedFrames.Count || selectedFrames[iImageIndex] == null)
{
continue;
}
Rectangle rDst = new Rectangle(i * thumbWidth, j * thumbHeight, thumbWidth, thumbHeight);
canvas.DrawImage(selectedFrames[iImageIndex], rDst, rSrc, GraphicsUnit.Pixel);
DrawImageNumber(canvas, iImageIndex, rDst, f);
}
}
f.Dispose();
}
public override void Activate(IWorkingZoneFramesContainer framesContainer, Action <InteractiveEffect> setInteractiveEffect)
{
if (ImageProcessor == null || framesContainer == null || framesContainer.Frames == null || framesContainer.Frames.Count < 1)
{
return;
}
frames = framesContainer.Frames;
using (Bitmap bmp = framesContainer.Representative.CloneDeep())
{
ImageProcessor(bmp);
using (formPreviewVideoFilter fpvf = new formPreviewVideoFilter(bmp, Name))
{
if (fpvf.ShowDialog() == DialogResult.OK)
{
StartProcessing();
}
}
}
}
public override void Activate(IWorkingZoneFramesContainer framesContainer, Action <InteractiveEffect> setInteractiveEffect)
{
StartProcessing();
}
public abstract void Activate(IWorkingZoneFramesContainer framesContainer, Action <InteractiveEffect> setInteractiveEffect);
