public ImageData GetCopy()
{
ImageData imageData = new ImageData();
imageData.Center = Center;
imageData.Width = Width;
imageData.Rotation = Rotation;
return imageData;
}
public bool Start()
{
if (editData.SelectedImages.Count > 0)
{
Image newBackgroundImage = editData.SelectedImages.First();
ImageData newImageData = new ImageData();
newImageData.Center = new Vector2(0.5f);
newImageData.Rotation = 0f;
newImageData.Width = 1f;
int oldIndex = editData.Collage.Images.IndexOf(newBackgroundImage);
Command command = new Command(ExecuteSetAsBackground, UndoSetAsBackground, new List<object>() { oldIndex, newImageData }, "Set To Front");
command.SetUndoData(new List<object>() { oldIndex, newBackgroundImage.Data });
editData.UndoManager.ExecuteAndAddCommand(command);
}
return false;
}
public void SetDefaultData()
{
data = new ImageData();
data.Center = new Vector2(0.5f);
data.Width = 0.2f;
data.Rotation = 0f;
}
public List<object> CalculateAutoPosition()
{
int amount = editData.Collage.Images.Count;
List<Image> order = new List<Image>();
List<ImageData> imageDataList = new List<ImageData>();
int lines = (int)Math.Min(Math.Max(1, Math.Floor(Math.Sqrt(amount / editData.Collage.AspectRatio))), amount);
int needToAddAmount = amount % Math.Max(1, lines);
for (int i = 0; i < lines; i++)
{
// calculates how many images will go in this line
int imagesInLine = amount / lines;
if (needToAddAmount > 0)
{
if (dataAccess.Random.NextDouble() < 1 / (float)lines || needToAddAmount == lines - i)
{
imagesInLine++;
needToAddAmount--;
}
}
// calculates an ImageData object for every Image in this line
for (int j = 0; j < imagesInLine; j++)
{
ImageData data = new ImageData();
// position
Vector2 newCenter = new Vector2();
newCenter.X = 1 / (float)imagesInLine * (j + 0.5f);
newCenter.Y = (1 / (float)(lines + 1) * (i + 1) - 0.5f) * MathHelper.Clamp(200 / (float)amount, 1.02f, 1.15f) + 0.5f;
newCenter.X += (float)(dataAccess.Random.NextDouble() * 2 - 1) / imagesInLine / 2f; // randomize X direction
newCenter.Y += (float)(dataAccess.Random.NextDouble() * 2 - 1) / lines / 2f; // randomize Y direction
data.Center = newCenter;
// rotation
data.Rotation = (float)(dataAccess.Random.NextDouble() * 2 - 1) / 10; // random amount of rotation
// scale
float newWidth = newWidth = 1 / (float)imagesInLine * 1.7f;
newWidth += (float)(dataAccess.Random.NextDouble() * 2 - 1) * newWidth / 2; // randomize scale
data.Width = newWidth;
imageDataList.Add(data);
}
}
// change order
List<Image> orderBuffer = new List<Image>(editData.Collage.Images);
List<ImageData> dataBuffer = new List<ImageData>(imageDataList);
imageDataList.Clear();
for (int i = 0; i < amount; i++)
{
int index = dataAccess.Random.Next(orderBuffer.Count);
// order
order.Add(orderBuffer[index]);
orderBuffer.Remove(orderBuffer[index]);
// image data
imageDataList.Add(dataBuffer[index]);
dataBuffer.Remove(dataBuffer[index]);
}
List<object> calculationData = new List<object>() { order, imageDataList };
return calculationData;
}
