private CropImageView CreateImageView(CropView page)
{
var cropImageView = new CropImageView(Context)
{
LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent),
};
cropImageView.SetImageBitmap(BitmapFactory.DecodeByteArray(page.Image, 0, page.Image.Length));
return(cropImageView);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
if (!(Element is CropView page))
{
return;
}
_page = page;
_image = page.Image;
IsCropped = page.IsCropped;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
var rotateTap = new UITapGestureRecognizer(RotateTap);
rotate.AddGestureRecognizer(rotateTap);
var zoomTap = new UITapGestureRecognizer(ZoomTap);
resize.AddGestureRecognizer(zoomTap);
var multiselectTap = new UITapGestureRecognizer(MultiSelectTap);
multiSelect.AddGestureRecognizer(multiselectTap);
bottomArrow.Transform = CGAffineTransform.MakeRotation((float)(Math.PI));
source = new PhotoCollectionViewSource();
photoCollection.Source = source;
photoCollection.RegisterClassForCell(typeof(PhotoCollectionViewCell), nameof(PhotoCollectionViewCell));
photoCollection.SetCollectionViewLayout(new UICollectionViewFlowLayout()
{
ItemSize = Constants.CellSize,
MinimumLineSpacing = 1,
MinimumInteritemSpacing = 1,
}, false);
delegateP = new PhotoCollectionViewFlowDelegate(source);
photoCollection.Delegate = delegateP;
delegateP.CellClicked += CellAction;
_cropView = new CropView(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, UIScreen.MainScreen.Bounds.Width));
_cropView.ZoomingStarted += (object sender, UIScrollViewZoomingEventArgs e) =>
{
NavigationItem.RightBarButtonItem.Enabled = false;
};
_cropView.ZoomingEnded += (object sender, ZoomingEndedEventArgs e) =>
{
NavigationItem.RightBarButtonItem.Enabled = true;
};
cropBackgroundView.BackgroundColor = Constants.R245G245B245;
cropBackgroundView.AddSubview(_cropView);
NavigationController.NavigationBar.Translucent = false;
SetBackButton();
}
void MoveCropView(PointF delta)
{
// update the crop view by how much it should be moved
float xPos = CropView.GetX( ) + delta.X;
float yPos = CropView.GetY( ) + delta.Y;
// clamp to valid bounds
xPos = Math.Max(CropViewMinPos.X, Math.Min(xPos, CropViewMaxPos.X));
yPos = Math.Max(CropViewMinPos.Y, Math.Min(yPos, CropViewMaxPos.Y));
CropView.SetX(xPos);
CropView.SetY(yPos);
MaskLayer.Position = new PointF(CropView.GetX( ), CropView.GetY( ));
}
public void Crop()
{
using (var form = new CropView(new Bitmap(this.model.Image)))
{
var result = form.ShowDialog();
if (result == DialogResult.OK)
{
this.undoRedo.PushToUndoStack((Bitmap)this.model.Image.Clone());
this.undoRedo.ClearRedoStack();
this.model.Image = (Bitmap)form.Image;
this.view.Image = this.model.Image;
this.view.Redraw();
}
}
}
private static Button CreateCancelButton(CropView page, string buttonText)
{
var rotateButton = new Button
{
Text = buttonText,
Style = Application.Current.Resources["DangerButton"] as Style,
Margin = ButtonMargin
};
rotateButton.Clicked += (sender, ex) =>
{
page.IsCropped = false;
page.Navigation.PopModalAsync();
};
return(rotateButton);
}
protected virtual void SetImage()
{
if (ImageAssets.Count == 1)
{
if (!_isFromCamera)
{
SetupPhoto(_cellSize);
photoView.Image = ImageAssets[0].Item2;
}
else
{
SetupPhoto(new CGSize(UIScreen.MainScreen.Bounds.Width - 15 * 2, UIScreen.MainScreen.Bounds.Width - 15 * 2));
_cropView = new CropView(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width - 15 * 2, UIScreen.MainScreen.Bounds.Width - 15 * 2));
photoView.AddSubview(_cropView);
_resizeButton = new UIImageView();
_resizeButton.Image = UIImage.FromBundle("ic_resize");
_resizeButton.UserInteractionEnabled = true;
mainScroll.AddSubview(_resizeButton);
_resizeButton.AutoPinEdge(ALEdge.Left, ALEdge.Left, photoView, 15f);
_resizeButton.AutoPinEdge(ALEdge.Bottom, ALEdge.Bottom, photoView, -15f);
_rotateButton = new UIImageView();
_rotateButton.Image = UIImage.FromBundle("ic_rotate");
_rotateButton.UserInteractionEnabled = true;
mainScroll.AddSubview(_rotateButton);
_rotateButton.AutoPinEdge(ALEdge.Left, ALEdge.Right, _resizeButton, 15f);
_rotateButton.AutoPinEdge(ALEdge.Bottom, ALEdge.Bottom, photoView, -15f);
var rotateTap = new UITapGestureRecognizer(RotateTap);
_rotateButton.AddGestureRecognizer(rotateTap);
var zoomTap = new UITapGestureRecognizer(ZoomTap);
_resizeButton.AddGestureRecognizer(zoomTap);
}
}
else
{
SetupPhotoCollection();
var galleryCollectionViewSource = new PhotoGalleryViewSource(ImageAssets);
photoCollection.Source = galleryCollectionViewSource;
photoCollection.BackgroundColor = UIColor.White;
}
}
private static Button CreateOkButton(CropView page, CropImageView view, string buttonText)
{
var button = new Button
{
Text = buttonText,
Style = Application.Current.Resources["ActionButton"] as Style,
Margin = ButtonMargin
};
button.Clicked += (sender, ex) =>
{
var cropped = view.CroppedImage;
using (var memory = new MemoryStream())
{
cropped.Compress(Bitmap.CompressFormat.Jpeg, 100, memory);
page.CroppedImage = memory.ToArray();
}
page.IsCropped = true;
page.Navigation.PopModalAsync();
};
return(button);
}
public CropViewDelegate(UIViewController parent, CropView page)
{
_parent = parent;
_page = page;
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
var rotateTap = new UITapGestureRecognizer(RotateTap);
rotate.AddGestureRecognizer(rotateTap);
var zoomTap = new UITapGestureRecognizer(ZoomTap);
resize.AddGestureRecognizer(zoomTap);
var multiselectTap = new UITapGestureRecognizer(MultiSelectTap);
multiSelect.AddGestureRecognizer(multiselectTap);
bottomArrow.Transform = CGAffineTransform.MakeRotation((float)(Math.PI));
source = new PhotoCollectionViewSource(_m);
photoCollection.Source = source;
photoCollection.RegisterClassForCell(typeof(PhotoCollectionViewCell), nameof(PhotoCollectionViewCell));
photoCollection.SetCollectionViewLayout(new UICollectionViewFlowLayout()
{
ItemSize = Constants.CellSize,
MinimumLineSpacing = 1,
MinimumInteritemSpacing = 1,
}, false);
delegateP = new PhotoCollectionViewFlowDelegate(source);
photoCollection.Delegate = delegateP;
delegateP.CellClicked += CellAction;
_cropView = new CropView(new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, UIScreen.MainScreen.Bounds.Width));
_cropView.ZoomingStarted += (object sender, UIScrollViewZoomingEventArgs e) =>
{
NavigationItem.RightBarButtonItem.Enabled = false;
};
_cropView.ZoomingEnded += (object sender, ZoomingEndedEventArgs e) =>
{
NavigationItem.RightBarButtonItem.Enabled = true;
};
var albums = new List <PHAssetCollection>();
var sortedAlbums = new List <Tuple <string, PHFetchResult> >();
var fetchOptions = new PHFetchOptions();
var allAlbums = PHAssetCollection.FetchAssetCollections(PHAssetCollectionType.Album, PHAssetCollectionSubtype.AlbumRegular, null)
.Cast <PHAssetCollection>();
albums.AddRange(allAlbums);
var smartAlbums = PHAssetCollection.FetchAssetCollections(PHAssetCollectionType.SmartAlbum, PHAssetCollectionSubtype.AlbumRegular, null)
.Cast <PHAssetCollection>();
albums.AddRange(smartAlbums);
fetchOptions.Predicate = NSPredicate.FromFormat("mediaType == %d", FromObject(PHAssetMediaType.Image));
foreach (var item in albums)
{
var firstAsset = PHAsset.FetchAssets(item, fetchOptions);
if (firstAsset.Count > 0)
{
sortedAlbums.Add(new Tuple <string, PHFetchResult>(item.LocalizedTitle, firstAsset));
}
}
sortedAlbums = sortedAlbums.OrderByDescending(a => a.Item2.Count).ToList();
_modalFolderView.BackgroundColor = UIColor.White;
var folderTable = new UITableView();
folderTable.Bounces = false;
folderTable.AllowsSelection = false;
folderTable.RowHeight = 90;
folderTable.SeparatorStyle = UITableViewCellSeparatorStyle.None;
var folderSource = new FolderTableViewSource(sortedAlbums);
folderSource.CellAction += (ActionType arg1, Tuple <string, PHFetchResult> arg2) =>
{
TitleTapped();
_titleLabel.Text = arg2.Item1;
source.UpdateFetchResult(arg2.Item2);
photoCollection.SetContentOffset(new CGPoint(0, 0), false);
photoCollection.ReloadData();
if (!source.MultiPickMode)
{
delegateP.ItemSelected(photoCollection, NSIndexPath.FromItemSection(0, 0));
}
};
folderTable.Source = folderSource;
_modalFolderView.AddSubview(folderTable);
folderTable.RegisterClassForCellReuse(typeof(AlbumTableViewCell), nameof(AlbumTableViewCell));
folderTable.AutoPinEdgesToSuperviewEdges();
folderTable.ReloadData();
cropBackgroundView.BackgroundColor = Constants.R245G245B245;
cropBackgroundView.AddSubview(_cropView);
NavigationController.NavigationBar.Translucent = false;
SetBackButton();
_titleLabel.Text = sortedAlbums.FirstOrDefault()?.Item1;
source.UpdateFetchResult(sortedAlbums.FirstOrDefault()?.Item2);
}
void SetMode(CropMode mode)
{
if (mode == Mode)
{
throw new Exception(string.Format("Crop Mode {0} requested, but already in that mode.", mode));
}
switch (mode)
{
case CropMode.Editing:
{
// If we're entering edit mode for the first time
if (Mode == CropMode.None)
{
// Animate in the mask
SimpleAnimator_Float floatAnimator = new SimpleAnimator_Float(MaskLayer.Opacity, MaskFadeAmount, MaskFadeTime,
delegate(float percent, object value)
{
Rock.Mobile.Threading.Util.PerformOnUIThread(delegate
{
MaskLayer.Opacity = (float)value;
});
},
null);
floatAnimator.Start( );
// turn on our cropper
CropView.Visibility = ViewStates.Visible;
// and set the source image to the scaled source.
ImageView.SetImageBitmap(ScaledSourceImage);
}
// else we're coming FROM Preview Mode, so we need to animate
else
{
Animating = true;
// setup the dimension changes
System.Drawing.SizeF startSize = new System.Drawing.SizeF(ImageView.Width, ImageView.Height);
System.Drawing.SizeF endSize = new System.Drawing.SizeF(CropView.Width, CropView.Height);
PointF startPos = new PointF(ImageView.GetX( ), ImageView.GetY( ));
PointF endPos = new PointF(CropView.GetX( ), CropView.GetY( ));
// now animate the cropped image up to its full size
AnimateImageView(ImageView, startPos, endPos, startSize, endSize, ImageAnimationTime,
delegate
{
ImageView.SetImageBitmap(null);
// release any cropped image we had.
if (CroppedImage != null)
{
CroppedImage.Dispose( );
CroppedImage = null;
}
// release the scaled version if we had it
if (ScaledCroppedImage != null)
{
ScaledCroppedImage.Dispose( );
ScaledCroppedImage = null;
}
ImageView.SetImageBitmap(ScaledSourceImage);
ImageView.LayoutParameters.Width = ScaledSourceImage.Width;
ImageView.LayoutParameters.Height = ScaledSourceImage.Height;
// center the image
ImageView.SetX((ScreenSize.Width - ImageView.LayoutParameters.Width) / 2);
ImageView.SetY((ScreenSize.Height - ImageView.LayoutParameters.Height) / 2);
MaskLayer.Visibility = ViewStates.Visible;
CropView.Visibility = ViewStates.Visible;
SimpleAnimator_Float floatAnimator = new SimpleAnimator_Float(MaskLayer.Opacity, MaskFadeAmount, MaskFadeTime,
delegate(float percent, object value)
{
Rock.Mobile.Threading.Util.PerformOnUIThread(delegate
{
MaskLayer.Opacity = (float)value;
CropView.Alpha = percent;
});
},
// FINISHED MASK FADE-OUT
delegate
{
Rock.Mobile.Threading.Util.PerformOnUIThread(delegate
{
Animating = false;
});
});
floatAnimator.Start( );
});
}
break;
}
case CropMode.Previewing:
{
// don't allow a state change while we're animating
Animating = true;
SimpleAnimator_Float floatAnimator = new SimpleAnimator_Float(MaskLayer.Opacity, 1.00f, MaskFadeTime,
delegate(float percent, object value)
{
Rock.Mobile.Threading.Util.PerformOnUIThread(delegate
{
MaskLayer.Opacity = (float)value;
CropView.Alpha = 1.0f - percent;
});
},
// FINISHED MASK FADE-IN
delegate
{
Rock.Mobile.Threading.Util.PerformOnUIThread(delegate
{
// hide the mask and cropper
MaskLayer.Visibility = ViewStates.Gone;
CropView.Visibility = ViewStates.Gone;
// create the cropped image
CroppedImage = CropImage(SourceImage, new System.Drawing.RectangleF(CropView.GetX( ) - CropViewMinPos.X,
CropView.GetY( ) - CropViewMinPos.Y,
CropView.LayoutParameters.Width,
CropView.LayoutParameters.Height));
// create a scaled version of the cropped image
float scaledWidth = (float)CroppedImage.Width * (1.0f / ScreenToImageScalar);
float scaledHeight = (float)CroppedImage.Height * (1.0f / ScreenToImageScalar);
ScaledCroppedImage = Bitmap.CreateScaledBitmap(CroppedImage, (int)scaledWidth, (int)scaledHeight, false);
// set the scaled cropped image
ImageView.SetImageBitmap(null);
ImageView.SetImageBitmap(ScaledCroppedImage);
// start the scaled cropped image scaled down further to match its size within the full image.
ImageView.SetX(CropView.GetX( ));
ImageView.SetY(CropView.GetY( ));
ImageView.LayoutParameters.Width = CropView.Width;
ImageView.LayoutParameters.Height = CropView.Height;
// setup the dimension changes
System.Drawing.SizeF startSize = new System.Drawing.SizeF(ScaledCroppedImage.Width, ScaledCroppedImage.Height);
System.Drawing.SizeF endSize;
if (ScreenSize.Width < ScreenSize.Height)
{
endSize = new System.Drawing.SizeF(ScreenSize.Width, (float)System.Math.Ceiling(ScreenSize.Width * (startSize.Width / startSize.Height)));
}
else
{
endSize = new System.Drawing.SizeF((float)System.Math.Ceiling(ScreenSize.Height * (startSize.Height / startSize.Width)), ScreenSize.Height);
}
PointF startPos = new PointF(CropView.GetX( ), CropView.GetY( ));
PointF endPos = new PointF((ScreenSize.Width - endSize.Width) / 2, (ScreenSize.Height - endSize.Height) / 2);
// now animate the cropped image up to its full size
AnimateImageView(ImageView, startPos, endPos, startSize, endSize, ImageAnimationTime,
delegate
{
Animating = false;
});
});
});
floatAnimator.Start( );
break;
}
}
Mode = mode;
}
