private void AddBitmapToCanvas(TouchManipulationBitmap bitmap)
{
var rectImage = SkiaHelper.CalculateRectangle(rectInfo, outImageWidht, outImageHeight).rect;
float scale = 0.25f;
var rectSticker = new SKRect(rectImage.Left + rectImage.Width * scale, rectImage.Top + rectImage.Height * scale, rectImage.Right - rectImage.Width * scale, rectImage.Bottom - rectImage.Height * scale);
var rect = SkiaHelper.CalculateRectangle(rectSticker, bitmap.Bitmap.Width, bitmap.Bitmap.Height);
bitmap.Matrix = new SKMatrix(rect.scaleX, 0, rectInfo.MidX - rect.rect.Width / 2, 0, rect.scaleY, rectInfo.MidY - rect.rect.Height / 2, 0, 0, 1);
bitmapCollection.Add(bitmap);
}
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
config = null;
bitmapDictionary = null;
inProgressPaths?.Clear();
inProgressPaths = null;
TrashEnabled = null;
TextBitmapClicked = null;
}
backgroundBitmap?.Dispose();
backgroundBitmap = null;
mainBitmap?.Bitmap.Dispose();
if (mainBitmap != null)
{
mainBitmap.Bitmap = null;
}
backgroundBitmap = null;
mainBitmap = null;
foreach (var a in completedPaths)
{
a.Dispose();
}
completedPaths?.Clear();
completedPaths = null;
foreach (var a in bitmapCollection)
{
if (a.Type != BitmapType.Stickers)
{
a.Bitmap?.Dispose();
}
a.Bitmap = null;
}
bitmapCollection = null;
disposedValue = true;
}
}
private void SetMainBitmap(SKBitmap bitmap)
{
outImageWidht = config?.IsOutImageAutoSize ?? false ? bitmap?.Width ?? 1 : config?.OutImageWidht ?? 1;
outImageHeight = config?.IsOutImageAutoSize ?? false ? bitmap?.Height ?? 1 : config?.OutImageHeight ?? 1;
backgroundBitmap?.Dispose();
backgroundBitmap = config.BackgroundType == BackgroundType.StretchedImage ? SKBitmapBuilder.GetBlurBitmap(bitmap, new SKRect(0, 0, outImageWidht, outImageHeight)) : null;
mainBitmap?.Bitmap?.Dispose();
if (mainBitmap == null)
{
mainBitmap = new TouchManipulationBitmap(bitmap, BitmapType.Main, null);
}
else
{
mainBitmap.Bitmap = bitmap;
}
SetMainBitmapMatrix();
}
private void OnTouchBitmapEffectAction(TouchActionEventArgs args, SKPoint point)
{
if (args.Type != TouchActionType.Moved)
{
TrashEnabled?.Invoke(false, false, false);
}
if (bitmapDictionary == null)
{
bitmapDictionary = new Dictionary <long, TouchManipulationBitmap>();
}
if (bitmapCollection == null)
{
bitmapCollection = new List <TouchManipulationBitmap>();
}
switch (args.Type)
{
case TouchActionType.Pressed:
if (!bitmapDictionary.ContainsKey(args.Id))
{
bool isFindBitmap = false;
if (bitmapCollection?.Count > 0)
{
for (int i = bitmapCollection.Count - 1; i >= 0; i--)
{
TouchManipulationBitmap bitmap = bitmapCollection[i];
int testResult = bitmap.HitTest(point, rectInfo);
if (testResult != -1)
{
if (Device.RuntimePlatform == Device.UWP)
{
bitmap.TouchManager.Mode = testResult == 4 ? TouchManipulationMode.ScaleRotate : TouchManipulationMode.ScaleDualRotate;
}
bitmap.TouchAction = TouchActionType.Pressed;
bitmapCollection.Remove(bitmap);
bitmapCollection.Add(bitmap);
// 进行触摸处理
bitmapDictionary.Add(args.Id, bitmap);
bitmap.ProcessTouchEvent(args.Id, args.Type, point);
isFindBitmap = true;
InvalidateSurface();
break;
}
}
}
if ((config?.CanTransformMainBitmap ?? false) && !isFindBitmap && mainBitmap.HitTest(point, rectInfo) != -1)
{
bitmapDictionary.Add(args.Id, mainBitmap);
mainBitmap.ProcessTouchEvent(args.Id, args.Type, point);
InvalidateSurface();
}
}
break;
case TouchActionType.Moved:
if (bitmapDictionary.ContainsKey(args.Id))
{
TouchManipulationBitmap bitmap = bitmapDictionary[args.Id];
bitmap.TouchAction = TouchActionType.Moved;
bitmap.ProcessTouchEvent(args.Id, args.Type, point);
if (bitmap.Type != BitmapType.Main)
{
if (rectTrash.Contains(point))
{
TrashEnabled?.Invoke(false, true, !rectTrash.Contains(previousTouchPoint));
}
else
{
TrashEnabled?.Invoke(true, false, false);
}
}
else
{
TrashEnabled?.Invoke(false, false, false);
}
InvalidateSurface();
}
else
{
TrashEnabled?.Invoke(false, false, false);
}
break;
case TouchActionType.Released:
case TouchActionType.Cancelled:
if (bitmapDictionary.ContainsKey(args.Id))
{
TouchManipulationBitmap bitmap = bitmapDictionary[args.Id];
bitmap.ProcessTouchEvent(args.Id, args.Type, point);
bitmapDictionary.Remove(args.Id);
if (bitmap.TouchAction == TouchActionType.Pressed && bitmap.Type == BitmapType.Text)
{
bitmap.IsHide = true;
TextBitmapClicked?.Invoke(bitmap);
}
bitmap.TouchAction = null;
if (rectTrash.Contains(point))
{
bitmapCollection.Remove(bitmap);
}
InvalidateSurface();
}
break;
}
}
