public void Draw(Graphics g, object itemToSkip = null)
{
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
for (int i = Items.Count - 1; i >= 0; i--) // Draw in Reverse Order so First ends up on top
{
ImageItem item = (ImageItem)Items[i];
if (item != itemToSkip)
{
item.Draw(g);
}
}
}
private void MainForm_Paint(object sender, PaintEventArgs e)
{
if (VisionBoard.Current == null)
{
return;
}
// Set up Bitmap
Bitmap bitmap = new Bitmap(Width, Height);
Graphics bitmapG = Graphics.FromImage(bitmap);
bitmapG.SetClip(new Rectangle(0, 0, Width, Height));
bitmapG.TranslateTransform(Width / 2, Height / 2);
// Reordering
if (VisionBoard.Current.Reordering)
{
VisionBoard.Current.OrderIndex = VisionBoard.Current.Items.Count;
VisionBoard.Current.Draw(bitmapG);
}
else
{
// Draw Non-Selected to Bitmap
VisionBoard.Current.Draw(bitmapG, selectedItem);
// Draw Selected to Bitmap
if (selectedItem != null)
{
selectedItem.Draw(bitmapG, true);
}
}
// Paint Bitmap
e.Graphics.DrawImage(bitmap, 0, 0);
bitmapG.Dispose();
bitmap.Dispose();
}
public void PlayAStep(Graphics g, int width, int height)
{
if (itemIndex >= Items.Count || itemIndex < 0)
{
return;
}
ImageItem activeItem = (ImageItem)Items[itemIndex];
// bitmap to draw to and its bitmapG Graphics object
Bitmap bitmap = new Bitmap(width, height);
Graphics bitmapG = Graphics.FromImage(bitmap);
//bitmapG.SetClip(new Rectangle(0, 0, width, height));
// draw bitmapOfStaticItems of all items except activeItem to bitmapG
getBitmapOfStaticItems(width, height, activeItem);
bitmapG.DrawImage(bitmapOfStaticItems, 0, 0);
bitmapG.TranslateTransform(width / 2, height / 2); // center (0,0)
bitmapG.ScaleTransform(ScreensaverForm.ScaleFactor, ScreensaverForm.ScaleFactor); // Scale down to fit
// actualStep between original position & zoomed-in position
int actualStep;
if (Step < MaxStep / 2 - PauseSteps / 2) // zooming in
{
actualStep = Step;
}
else if (Step > MaxStep / 2 + PauseSteps / 2) // zooming out
{
actualStep = MaxStep - Step;
}
else // pausing
{
actualStep = MaxStep / 2 - PauseSteps / 2;
}
// draw activeItem at its current zoom step to bitmapG
// offset to accelerate
//int offset = (int)Math.Round(Math.Sqrt(Math.Pow(HalfMaxStep / 2, 2) - Math.Pow(actualStep - HalfMaxStep / 2, 2))); // offset is in the range of [0..HalfMaxStep], slow moving on the ends and fast moving in the middle
int x = /*-activeItem.X * offset / HalfMaxStep; //*/ (int)Math.Round(Math.Pow((Math.Pow(Math.Abs(activeItem.X), 0.666) / HalfwayStep * actualStep), 1.5));
if (activeItem.X > 0)
{
x = -x;
}
int y = /*-activeItem.Y * offset / HalfMaxStep; //*/ (int)Math.Round(Math.Pow((Math.Pow(Math.Abs(activeItem.Y), 0.33) / HalfwayStep * actualStep), 3)); //-activeItem.Y * actualStep / HalfMaxStep;
if (activeItem.Y > 0)
{
y = -y;
}
float rot = -activeItem.RotationDegrees / HalfwayStep * actualStep;
float maxScale = Math.Min(width * 0.95f / ScreensaverForm.ScaleFactor / activeItem.Size.Width, height * 0.95f / ScreensaverForm.ScaleFactor / activeItem.Size.Height);
float scale = 1 + (maxScale - 1) * actualStep / HalfwayStep;
if (scale == 0)
{
scale = 1;
}
activeItem.Draw(bitmapG, x, y, rot, scale);
// draw the bitmap to the screen
g.DrawImage(bitmap, 0, 0);
bitmapG.Dispose();
}
