/// <summary>
/// Updates the windows form that contains the image of the current content.
/// </summary>
/// <param name="cascade">If true, it will call UpdateDisplay on NextDisplay as well</param>
/// <returns></returns>
public bool UpdateDisplay(bool cascade)
{
if (content != null)
{
if (pictureBox != null)
{
// Preview, or mini-Live display
pictureBox.Image = ShowBeam.DrawProportionalBitmap(pictureBox.Size, GetBitmap(this.Size)).Bitmap;
}
else if (imagepanel != null)
{
imagepanel.ImagePack = ShowBeam.DrawProportionalBitmap(imagepanel.Size, GetBitmap(this.Size));
}
else if (showBeam != null && showBeam.TopLevelControl.Visible)
{
// Live display
showBeam.GDIDraw(this.GetBitmap(Size));
}
}
if (cascade && NextDisplay != null)
{
return(NextDisplay.UpdateDisplay(cascade));
}
return(true);
}
public Bitmap GetBitmap(int Width, int Height)
{
if (this.RenderedFramesContains(this.VisibleHashCode()))
{
Console.WriteLine("ImageContent pre-render cache hit.");
return(this.RenderedFramesGet(this.VisibleHashCode()) as Bitmap);
}
Bitmap bmp = new Bitmap(Width, Height);
Graphics graphics = Graphics.FromImage(bmp);
#region Render background image
// Draw background image
if (this.HideBG == false)
{
string fullPath = DreamTools.GetFullPathOrNull(DreamTools.GetDirectory(DirType.DataRoot), this.BGImagePath);
if (DreamTools.FileExists(fullPath))
{
if (this.bgImage == null)
{
try {
this.bgImage = Image.FromFile(fullPath);
} catch { }
}
}
if (this.bgImage != null)
{
if (this._proportional)
{
graphics.DrawImage(ShowBeam.DrawProportionalBitmap(new System.Drawing.Size(Width, Height), this.bgImage).Bitmap, 0, 0, Width, Height);
}
else
{
graphics.DrawImage(this.bgImage, 0, 0, Width, Height);
}
}
}
else
{
// Draw blank rectangle if no image is defined
graphics.FillRectangle(new SolidBrush(Color.Black), new Rectangle(0, 0, Width, Height));
}
#endregion
graphics.Dispose();
this.RenderedFramesSet(this.VisibleHashCode(), bmp);
return(bmp);
}
