public void DrawPath(Cell cell, Rectangle pathRect, Point direction, CellColor color)
{
mContext.DrawImage(pathRect, UIImageEx.GetImageWithOverlayColor(mPathImage, color.UIColor).CGImage);
// The old drawing code for perfect paths
// context.SetFillColor (color.UIColor.CGColor);
// Draw in 2 parts:
// First a rect
// context.FillRect (pathRect);
//
// // Then an arc to the end
// if (direction.X < 0) {
// context.MoveTo (pathRect.Right, pathRect.Top);
// context.AddCurveToPoint (
// pathRect.Right + pathRect.Width / 3,
// pathRect.Top + pathRect.Height / 3,
// pathRect.Right + pathRect.Width / 3,
// pathRect.Top + 2 * pathRect.Height / 3,
// pathRect.Right,
// pathRect.Bottom
// );
// } else if (direction.X > 0) {
// context.MoveTo (pathRect.Left, pathRect.Top);
// context.AddCurveToPoint (
// pathRect.Left - pathRect.Width / 3,
// pathRect.Top + pathRect.Height / 3,
// pathRect.Left - pathRect.Width / 3,
// pathRect.Top + 2 * pathRect.Height / 3,
// pathRect.Left,
// pathRect.Bottom
// );
// }
// if (direction.Y < 0) {
// context.MoveTo (pathRect.Left, pathRect.Bottom);
// context.AddCurveToPoint (
// pathRect.Left + pathRect.Width / 3,
// pathRect.Bottom + pathRect.Height / 3,
// pathRect.Left + 2 * pathRect.Width / 3,
// pathRect.Bottom + pathRect.Height / 3,
// pathRect.Right,
// pathRect.Bottom
// );
// } else if (direction.Y > 0) {
// context.MoveTo (pathRect.Left, pathRect.Top);
// context.AddCurveToPoint (
// pathRect.Left + pathRect.Width / 3,
// pathRect.Top - pathRect.Height / 3,
// pathRect.Left + 2 * pathRect.Width / 3,
// pathRect.Top - pathRect.Height / 3,
// pathRect.Right,
// pathRect.Top
// );
// }
//
// context.FillPath ();
}
public void FilterImage(UIImage img, int difficulty)
{
if (mLastDifficulty != difficulty)
{
mLastDifficulty = difficulty;
if (mFilterThread != null)
{
mFilterThread.Abort();
mFilterThread = null;
}
mFilterThread = new Thread(() => {
this.mImageToUse = img;
// Slight saturation
mImageToUse = UIImageEx.AdjustBrightnessSaturationAndContrast(mImageToUse, 0, 1.2f);
int size = HARD_SIZE;
if (difficulty <= 0)
{
size = NORMAL_SIZE;
}
else if (difficulty > 0 && difficulty <= 1)
{
size = HARD_SIZE;
}
else if (difficulty > 1)
{
size = EXPERT_SIZE;
}
mImageToUse = ImageFilters.Filter(mImageToUse, size);
InvokeOnMainThread(() => {
if (ImageTransformed != null)
{
ImageTransformed.Image = mImageToUse;
}
});
});
mFilterThread.Start();
}
}
public void DrawCellBase(Cell cell)
{
bool isValid = cell.Path != null && cell.Path.IsValid;
CellColor cellColor = cell.Color;
if (cell.Path != null)
{
cellColor = cell.Path.Color;
}
CGColor color = cellColor.UIColor.CGColor;
mContext.SetFillColor(color);
if (mParent.ShouldDisplayFilledCells == false)
{
// Draw a circle of the color
// But reduce the circle value
int circleReductionValue = mParent.CellSize / 10;
RectangleF cellValueRect = new RectangleF(cell.Rect.X + circleReductionValue, cell.Rect.Y + circleReductionValue, mParent.CellSize - 2 * circleReductionValue, mParent.CellSize - 2 * circleReductionValue);
UIImage image = null;
if (isValid == false)
{
image = mSplashImage;
image = UIImageEx.GetImageWithOverlayColor(image, cellColor.UIColor);
mContext.DrawImage(cellValueRect, image.CGImage);
}
else
{
mContext.FillRect(cell.Rect);
}
}
else
{
// Fill the whole cell to preview puzzle
mContext.FillRect(cell.Rect);
}
}
private static List <Color> getColorPalette(UIImage img, int paletteColorsNumber)
{
// -- Make a thumbnail for better performace
Logger.D("Palette -> resize");
UIImage thumb = UIImageEx.ResizeRatio(img, Math.Min(96, (int)Math.Max(img.Size.Width, img.Size.Height)));
Bitmap thumbBitmap = new Bitmap(thumb);
// -- Get each colors
Logger.D("Palette -> get each color");
Dictionary <Color, int> rawColorList = new Dictionary <Color, int> ();
for (int xq = 0; xq < thumb.Size.Width; xq++)
{
for (int yq = 0; yq < thumb.Size.Height; yq++)
{
Color c = thumbBitmap.GetPixel(xq, yq);
if (rawColorList.ContainsKey(c))
{
rawColorList [c] += 1;
}
else
{
rawColorList.Add(c, 1);
}
} // for y
} // for x
var orderedColorList = rawColorList
.Where(c => c.Value > 1) // Take only colors that appear at least twice (huge optim)
.OrderByDescending(c => c.Value) // Order by frequency
.Select(c => c.Key) // Select only keys
.ToList();
// -- Look if we have a similar color already in the palette
Logger.D("Palette -> restrict to n");
List <Color> colorPalette = new List <Color> (paletteColorsNumber);
while (colorPalette.Count < paletteColorsNumber)
{
if (orderedColorList.Any() == false)
{
Logger.W("Palette -> Not enough color!");
break;
}
Color c1 = orderedColorList.First();
List <Color> similarColors = new List <Color> ();
similarColors.Add(c1);
int avg_r = c1.R;
int avg_b = c1.B;
int avg_g = c1.G;
// Look for similar colors
foreach (Color c2 in orderedColorList)
{
if (c1 == c2)
{
continue;
}
double distance = Math.Abs(Math.Pow(c1.R - c2.R, 2) + Math.Pow(c1.G - c2.G, 2) + Math.Pow(c1.B - c2.B, 2));
if (distance < PaletteColorDifferenceThreshold)
{
// Too close, do the average
avg_r += c2.R;
avg_g += c2.G;
avg_b += c2.B;
similarColors.Add(c2);
}
}
// Add the average colors
Color newColor = Color.FromArgb(
avg_r / similarColors.Count,
avg_g / similarColors.Count,
avg_b / similarColors.Count
);
colorPalette.Add(newColor);
// Remove checked colors
foreach (var deletedColor in similarColors)
{
orderedColorList.Remove(deletedColor);
}
}
// Free things
thumbBitmap = null;
return(colorPalette);
}
private void PrepareCell(UITableViewCell cell)
{
cell.Accessory = Accessory;
var tl = cell.TextLabel;
tl.Text = Caption;
tl.TextAlignment = Alignment;
tl.TextColor = TextColor ?? UIColor.Black;
tl.Font = Font ?? UIFont.BoldSystemFontOfSize(17);
tl.LineBreakMode = LineBreakMode;
tl.Lines = Lines;
// The check is needed because the cell might have been recycled.
if (cell.DetailTextLabel != null)
{
cell.DetailTextLabel.Text = Value == null ? "" : Value;
}
if (extraInfo == null)
{
cell.ContentView.BackgroundColor = null;
tl.BackgroundColor = null;
}
else
{
var imgView = cell.ImageView;
UIImage img;
if (extraInfo.Image != null)
{
img = extraInfo.Image;
}
else
{
img = null;
}
imgView.Image = img;
// http://stackoverflow.com/questions/1269188/iphone-sdk-adding-a-uiactivityindicatorview-to-a-uitableviewcell
if (extraInfo.Activity)
{
if (_spinner == null)
{
_spinner = new UIActivityIndicatorView(UIActivityIndicatorViewStyle.Gray);
_spinner.Frame = new System.Drawing.RectangleF(0, 0, 25, 25);
_whiteback = UIImageEx.FromFile(@"Images/whiteback.png");
}
cell.ImageView.Image = _whiteback;
cell.ImageView.AddSubview(_spinner);
if (!_spinner.IsAnimating)
{
_spinner.StartAnimating();
}
}
else
{
if (_spinner != null)
{
_spinner.StopAnimating();
_spinner.RemoveFromSuperview();
_spinner = null;
_whiteback = null;
}
}
if (cell.DetailTextLabel != null)
{
cell.DetailTextLabel.TextColor = extraInfo.DetailColor ?? UIColor.Black;
}
var badgeCell = cell as BadgeTableViewCell;
if (badgeCell != null && extraInfo.New)
{
badgeCell.BadgeView.TextLabel.Text = @"New";
badgeCell.BadgeView.BadgeColor = new UIColor(0.388f, 0.686f, 0.239f, 1.0f);
}
if (cell.DetailTextLabel != null)
{
cell.DetailTextLabel.Lines = Lines;
cell.DetailTextLabel.LineBreakMode = LineBreakMode;
cell.DetailTextLabel.Font = SubtitleFont ?? UIFont.SystemFontOfSize(14);
}
}
}
