public Border(double width, LineStyle style, Color color, Xamarin.Forms.Size radius)
{
LeftWidth = TopWidth = RightWidth = BottomWidth = width;
LeftStyle = TopStyle = RightStyle = BottomStyle = style;
LeftColor = TopColor = RightColor = BottomColor = color;
BottomLeft = BottomRight = TopLeft = TopRight = radius;
}
protected override void OnLayout(bool changed, int left, int top, int right, int bottom)
{
using (var h = new Handler(Looper.MainLooper))
{
h.Post(() =>
{
double width = base.Context.FromPixels((double)(right - left));
double height = base.Context.FromPixels((double)(bottom - top));
var size = new Xamarin.Forms.Size(width, height);
var msw = MeasureSpec.MakeMeasureSpec(right - left, MeasureSpecMode.Exactly);
var msh = MeasureSpec.MakeMeasureSpec(bottom - top, MeasureSpecMode.Exactly);
_nativeView.Measure(msw, msh);
_nativeView.Layout(0, 0, right - left, bottom - top);
if (size != _previousSize || !_isLaidOut)
{
var layout = _viewCell.View as Layout <Xamarin.Forms.View>;
if (layout != null)
{
layout.Layout(new Rectangle(0, 0, width, height));
layout.ForceLayout();
FixChildLayouts(layout);
_isLaidOut = true;
}
}
_previousSize = size;
});
}
}
public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
{
//var selector = Element.ItemTemplate as DataTemplateSelector;
//if (selector != null)
//{
// selector.SelectTemplate(item, _listView);
//}
var gridViewCell = viewType == 0 ?
Element.ItemTemplate.CreateContent() as Plugin.GridViewControl.Common.FastGridCell :
Element.GroupHeaderTemplate.CreateContent() as Plugin.GridViewControl.Common.FastGridCell;
// reflection method of setting isplatformenabled property
// We are going to re-set the Platform here because in some cases (headers mostly) its possible this is unset and
// when the binding context gets updated the measure passes will all fail. By applying this here the Update call
// further down will result in correct layouts.
var p = PlatformProperty.GetValue(Element);
PlatformProperty.SetValue(gridViewCell, p);
var initialCellSize = new Xamarin.Forms.Size(Element.MinItemWidth, Element.RowHeight);
var view = new GridViewCellContainer(parent.Context, gridViewCell, parent, initialCellSize);
//Only add the click handler for items (not group headers.)
if (viewType == 0)
{
view.Click += MMainView_Click;
}
//Height of the view will be taken as RowHeight for child items
//and the heightrequest property of the first view in the template
//or the render height (whatever that is) if the heightrequest property is not defined.
var height = viewType == 0 ? Convert.ToInt32(Element.RowHeight) :
gridViewCell.View.HeightRequest != -1 ?
Convert.ToInt32(gridViewCell.View.HeightRequest) :
Convert.ToInt32(gridViewCell.RenderHeight);
var width = Convert.ToInt32(Element.MinItemWidth);
var dpW = ConvertDpToPixels(width);
var dpH = ConvertDpToPixels(height);
//If there are no minimums then the view doesn't render at all.
view.SetMinimumWidth(dpW);
view.SetMinimumHeight(dpH);
var d = parent.Context.GetDrawable("statelist_item_background.xml");
view.SetBackground(d);
//If not set to match parent then the view doesn't stretch to fill.
//This is not necessary anymore with the plaform fix above.
//view.LayoutParameters = new GridLayoutManager.LayoutParams(ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent);
//Wrap the view.
view.SetOnLongClickListener(this);
GridViewCell myView = new GridViewCell(view);
//return the view.
return(myView);
}
private Xamarin.Forms.Size GetSize(int imageWidth, int imageHeight, int maxWidth, int maxHeight)
{
Xamarin.Forms.Size size;
if (maxHeight > 0 && maxWidth > 0 && imageWidth > maxWidth && imageHeight > maxHeight)
{
float ratioBitmap = (float)imageWidth / (float)imageHeight;
float ratioMax = (float)maxWidth / (float)maxHeight;
int finalWidth = maxWidth;
int finalHeight = maxHeight;
if (ratioMax > 1)
{
finalWidth = (int)((float)maxHeight * ratioBitmap);
}
else
{
finalHeight = (int)((float)maxWidth / ratioBitmap);
}
size = new Xamarin.Forms.Size(finalWidth, finalHeight);
}
else
{
size = new Xamarin.Forms.Size(imageWidth, imageHeight);
}
return(size);
}
private SizeRequest?SizeRequestDelegate(NativeViewWrapperRenderer renderer,
int widthConstraint, int heightConstraint)
{
var size = new Xamarin.Forms.Size(200, 200);
return(new SizeRequest(size));
}
public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
{
var desiredSize = InternalMeasure(new Windows.Foundation.Size(widthConstraint, heightConstraint));
var minSize = new Xamarin.Forms.Size(10, Element != null ? _fontMetrics.LineHeightForFontSize(Element.DecipheredMinFontSize()) : 10);
var result = new SizeRequest(new Xamarin.Forms.Size(desiredSize.Width, desiredSize.Height), minSize);
return(result);
}
public override SizeRequest GetDesiredSize(double widthConstraint, double heightConstraint)
{
DebugMessage("ENTER(" + widthConstraint + "," + heightConstraint + ")");
var desiredSize = MeasureOverride(new Windows.Foundation.Size(widthConstraint, heightConstraint));
var minSize = new Xamarin.Forms.Size(10, Element != null ? FontExtensions.LineHeightForFontSize(Element.DecipheredMinFontSize()):10);
DebugMessage("EXIT(" + desiredSize + ")");
return(new SizeRequest(new Xamarin.Forms.Size(desiredSize.Width, desiredSize.Height), minSize));
}
protected internal void CalculateLayoutRects()
{
if (Element == null || Element.Width < 10 || _gridLayoutManager == null)
{
return;
}
var itemTemplate = Element.ItemTemplateSelector;
if (!(itemTemplate is FastCollectionTemplateSelector templateSelector))
{
return;
}
templateSelector.Prepare();
var width = Element.Width;
var widths = templateSelector.DataTemplates.Select(t => t.CellSize.Width);
_columns = Math.Max(1, widths.Max(w => (int)(width / w)));
_gridLayoutManager.SpanCount = _columns;
if (_sizeLookup == null)
{
_sizeLookup = new GridSpanSizeLookup();
_gridLayoutManager.SetSpanSizeLookup(_sizeLookup);
}
_sizeLookup.MaxColumns = _columns;
_sizeLookup.Width = width;
var source = Element.ItemsSource as ICollection;
var numberOfItems = source?.Count ?? 0;
var layoutInfo = new Size[numberOfItems];
if (numberOfItems == 0 || source == null)
{
return;
}
var density = _density;
var items = source.Cast <object>().ToArray();
for (var i = 0; i < numberOfItems; i++)
{
var item = items[i];
var size = GetSizeByItem(templateSelector, item);
size.Height *= density;
size.Width *= density;
layoutInfo[i] = size;
}
var widthByPos = layoutInfo.Select(t => t.Width / density).ToList();
_sizeLookup.WidthByPos = widthByPos;
}
public ImageDataModel GetImageData(string fileName)
{
UIImage image = UIImage.LoadFromData(new NSData());
var result = new Xamarin.Forms.Size((double)image.Size.Width, (double)image.Size.Height);
return(new ImageDataModel {
Height = result.Height, Width = result.Width
});
}
public void SetElementSize(Xamarin.Forms.Size size)
{
if (this.loaded)
{
this.Element.Layout(new Xamarin.Forms.Rectangle(this.Element.X, this.Element.Y, size.Width, size.Height));
}
else
{
this.queuedSize = size;
}
}
public bool UpdateIconSize()
{
if (LayoutParameters is null)
{
throw new NullReferenceException(nameof(LayoutParameters));
}
Size size = GetIconSize();
LayoutParameters.Width = (int)_Cell.AndroidContext.ToPixels(size.Width);
LayoutParameters.Height = (int)_Cell.AndroidContext.ToPixels(size.Height);
return(true);
}
/// <summary>
/// Read in and resize image.
/// </summary>
/// <param name="v_sFilePath"></param>
/// <param name="v_szSize"></param>
/// <returns></returns>
public async Task <object> ReadAndResizeImageFile(string v_sFilePath, Xamarin.Forms.Size v_szSize)
{
WriteableBitmap wbReturn = new WriteableBitmap((int)v_szSize.Width, (int)v_szSize.Height);
try
{
StorageFile sfFile = await StorageFile.GetFileFromPathAsync(v_sFilePath);
using (IRandomAccessStream fileStream = await sfFile.OpenAsync(Windows.Storage.FileAccessMode.Read))
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
// Scale image to appropriate size
BitmapTransform transform = new BitmapTransform()
{
ScaledWidth = Convert.ToUInt32(wbReturn.PixelWidth),
ScaledHeight = Convert.ToUInt32(wbReturn.PixelHeight)
};
PixelDataProvider pixelData = await decoder.GetPixelDataAsync(
BitmapPixelFormat.Bgra8, // WriteableBitmap uses BGRA format
BitmapAlphaMode.Straight,
transform,
ExifOrientationMode.IgnoreExifOrientation, // This sample ignores Exif orientation
ColorManagementMode.DoNotColorManage);
// An array containing the decoded image data, which could be modified before being displayed
byte[] sourcePixels = pixelData.DetachPixelData();
// Open a stream to copy the image contents to the WriteableBitmap's pixel buffer
using (Stream stream = wbReturn.PixelBuffer.AsStream())
{
await stream.WriteAsync(sourcePixels, 0, sourcePixels.Length);
}
}
return(wbReturn);
}
catch (Exception ex)
{
//cMain.ReportError(ex, cMain.GetCallerMethodName(), string.Empty);
return(null);
}
}
protected override void OnCreate(Bundle bundle)
{
TabLayoutResource = Resource.Layout.Tabbar;
ToolbarResource = Resource.Layout.Toolbar;
base.OnCreate(bundle);
global::Xamarin.Forms.Forms.Init(this, bundle);
var size = new Xamarin.Forms.Size((int)(Resources.DisplayMetrics.WidthPixels / Resources.DisplayMetrics.Density), (int)(Resources.DisplayMetrics.HeightPixels / Resources.DisplayMetrics.Density));
Console.WriteLine(size.Height);
Console.WriteLine(size.Width);
App.screenSize.Width = size.Width;
App.screenSize.Height = size.Height;
LoadApplication(new App());
}
void UpdateIconSize()
{
Xamarin.Forms.Size size;
if (CellBase.IconSize != default(Xamarin.Forms.Size))
{
size = CellBase.IconSize;
}
else if (CellParent != null && CellParent.CellIconSize != default(Xamarin.Forms.Size))
{
size = CellParent.CellIconSize;
}
else
{
size = new Xamarin.Forms.Size(36, 36);
}
IconView.LayoutParameters.Width = (int)_Context.ToPixels(size.Width);
IconView.LayoutParameters.Height = (int)_Context.ToPixels(size.Height);
}
public static SizeRequest GetSizeRequest(
this NSControl self,
double widthConstraint,
double heightConstraint,
double minimumWidth = -1.0,
double minimumHeight = -1.0)
{
if (self == null)
{
return(new SizeRequest(
new Size(widthConstraint, heightConstraint),
new Size(minimumWidth, minimumHeight)));
}
CGSize cgSize = self.SizeThatFits((CGSize) new SizeF((float)widthConstraint, (float)heightConstraint));
Xamarin.Forms.Size request = new Xamarin.Forms.Size(cgSize.Width == (nfloat)float.PositiveInfinity ? double.PositiveInfinity : (double)cgSize.Width, cgSize.Height == (nfloat)float.PositiveInfinity ? double.PositiveInfinity : (double)cgSize.Height);
Xamarin.Forms.Size minimum = new Xamarin.Forms.Size(minimumWidth < 0.0 ? request.Width : minimumWidth, minimumHeight < 0.0 ? request.Height : minimumHeight);
return(new SizeRequest(request, minimum));
}
CAShapeLayer GetMaskShape(ViewMaskerType maskType, Xamarin.Forms.Size size)
{
var layer = new CAShapeLayer();
layer.FillColor = UIColor.White.CGColor;
layer.StrokeColor = UIColor.White.CGColor;
layer.LineWidth = 0;
UIBezierPath path = null;
var bounds = new CGRect(0, 0, size.Width, size.Height);
switch (maskType)
{
case ViewMaskerType.Circle:
path = UIBezierPath.FromRoundedRect(bounds, (nfloat)Math.Max(size.Width, size.Height));
break;
case ViewMaskerType.Triangle:
var point1 = new CGPoint(0, size.Height);
var point2 = new CGPoint(size.Width, size.Height);
var point3 = new CGPoint(size.Width / 2, 0);
path = new UIBezierPath();
path.MoveTo(point1);
path.AddLineTo(point2);
path.AddLineTo(point3);
path.AddLineTo(point1);
path.ClosePath();
path.Fill();
break;
case ViewMaskerType.Square:
var smallRectangle = UIBezierPath.FromRect(bounds.Inset(50, 50));
path = UIBezierPath.FromRoundedRect(bounds, 20);
break;
default:
throw new ArgumentOutOfRangeException();
}
layer.Path = path.CGPath;
return(layer);
}
/// <summary>
///
/// </summary>
/// <param name="v_sfFrom"></param>
/// <param name="v_sfTo"></param>
public async Task <bool> CopyAndConvertImage(object v_sfFrom, object v_sfTo, Xamarin.Forms.Size v_szSize)
{
try
{
using (IRandomAccessStream fileStream = await((StorageFile)v_sfFrom).OpenAsync(Windows.Storage.FileAccessMode.Read))
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(fileStream);
// Scale image to appropriate size
BitmapTransform transform = new BitmapTransform()
{
ScaledWidth = Convert.ToUInt32(v_szSize.Width),
ScaledHeight = Convert.ToUInt32(v_szSize.Height)
};
PixelDataProvider pixelData = await decoder.GetPixelDataAsync(
BitmapPixelFormat.Bgra8, // WriteableBitmap uses BGRA format
BitmapAlphaMode.Straight,
transform,
ExifOrientationMode.IgnoreExifOrientation, // This sample ignores Exif orientation
ColorManagementMode.DoNotColorManage);
using (var destinationStream = await((StorageFile)v_sfTo).OpenAsync(FileAccessMode.ReadWrite))
{
BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, destinationStream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8, BitmapAlphaMode.Straight, (uint)v_szSize.Width, (uint)v_szSize.Height, 72, 72, pixelData.DetachPixelData());
await encoder.FlushAsync();
}
}
return(true);
}
catch (Exception ex)
{
//cMain.ReportError(ex, cMain.GetCallerMethodName(), string.Empty);
return(false);
}
}
public Border(Border border)
{
LeftWidth = border.LeftWidth;
TopWidth = border.TopWidth;
RightWidth = border.RightWidth;
BottomWidth = border.BottomWidth;
LeftStyle = border.LeftStyle;
TopStyle = border.TopStyle;
RightStyle = border.RightStyle;
BottomStyle = border.BottomStyle;
LeftColor = border.LeftColor;
TopColor = border.TopColor;
RightColor = border.RightColor;
BottomColor = border.BottomColor;
BottomLeft = border.BottomLeft;
BottomRight = border.BottomRight;
TopLeft = border.TopLeft;
TopRight = border.TopRight;
}
public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
{
var gridViewCell = Element.ItemTemplate.CreateContent() as FastGridCell;
var initialCellSize = new Xamarin.Forms.Size(Element.ItemWidth, Element.ItemHeight);
var view = new GridViewCellContainer(parent.Context, gridViewCell, parent, initialCellSize);
view.Click += mMainView_Click;
var width = Convert.ToInt32(Element.ItemWidth);
//TODO the height is just not working out correctly for us - views end up being too small
var height = Convert.ToInt32(Element.ItemHeight + _gridView.RowSpacing);
var dpW = ConvertDpToPixels(width);
var dpH = ConvertDpToPixels(height);
view.SetMinimumWidth(dpW);
view.SetMinimumHeight(dpH);
view.LayoutParameters = new GridLayoutManager.LayoutParams(dpW, dpH);
GridViewCell myView = new GridViewCell(view);
return(myView);
}
public override void ViewDidLayoutSubviews()
{
// ISSUE: reference to a compiler-generated method
base.ViewDidLayoutSubviews();
if (this.Element == null)
{
return;
}
if (!this.Element.Bounds.IsEmpty)
{
this.View.Frame = (CGRect) new RectangleF((float)this.Element.X, (float)this.Element.Y, (float)this.Element.Width, (float)this.Element.Height);
}
CGRect frame1 = this.View.Frame;
CGRect frame2 = this.TabBar.Frame;
((Page)this.Element).ContainerArea = new Xamarin.Forms.Rectangle(0.0, 0.0, (double)frame1.Width, (double)(frame1.Height - frame2.Height));
if (!this.queuedSize.IsZero)
{
this.Element.Layout(new Xamarin.Forms.Rectangle(this.Element.X, this.Element.Y, this.queuedSize.Width, this.queuedSize.Height));
this.queuedSize = Xamarin.Forms.Size.Zero;
}
this.loaded = true;
}
public void SetElementSize(Xamarin.Forms.Size size)
{
this.Element.Layout(new Xamarin.Forms.Rectangle(this.Element.X, this.Element.Y, size.Width, size.Height));
}
void SetImages(MvvmAspire.Controls.Button element)
{
try
{
ButtonText = Element.Text;
if (!HaseResource(element.ImageLeft) && !HaseResource(element.ImageTop) && !HaseResource(element.ImageRight) && !HaseResource(element.ImageBottom))
{
Control.SetCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
Control.Invalidate();
return;
}
Drawable leftResource = null, topResource = null, rightResource = null, bottomResource = null;
if (element.ImageLeft != null && element.ImageLeft.File != null)
{
leftResource = ContextCompat.GetDrawable(UIHelper.Context, UIHelper.GetDrawableResource(element.ImageLeft));
}
if (element.ImageTop != null && element.ImageTop.File != null)
{
topResource = ContextCompat.GetDrawable(UIHelper.Context, UIHelper.GetDrawableResource(element.ImageTop));
}
if (element.ImageRight != null && element.ImageRight.File != null)
{
rightResource = ContextCompat.GetDrawable(UIHelper.Context, UIHelper.GetDrawableResource(element.ImageRight));
}
if (element.ImageBottom != null && element.ImageBottom.File != null)
{
bottomResource = ContextCompat.GetDrawable(UIHelper.Context, UIHelper.GetDrawableResource(element.ImageBottom));
}
bool hasResource = leftResource != null || rightResource != null || topResource != null || bottomResource != null;
if (hasResource && !element.CenterImage)
{
Control.SetCompoundDrawablesWithIntrinsicBounds(leftResource, topResource, rightResource, bottomResource);
}
if (hasResource && element.CenterImage)
{
Xamarin.Forms.Size size = new Xamarin.Forms.Size();
if (leftResource != null)
{
if (element.ImageLeftHeight > 0 && element.ImageLeftWidth > 0)
{
size.Width = element.ImageLeftWidth;
size.Height = element.ImageLeftHeight;
}
else
{
var maxWidth = BaseUIHelper.ConvertDPToPixels(element.Padding.Left) - BaseUIHelper.ConvertDPToPixels(element.Padding.Right) - Control.MeasuredWidth;
var maxHeight = BaseUIHelper.ConvertDPToPixels(element.Padding.Top) - BaseUIHelper.ConvertDPToPixels(element.Padding.Bottom) - Control.MeasuredHeight;
var temp = GetSize(leftResource.IntrinsicWidth, leftResource.IntrinsicHeight, Math.Abs(maxWidth), Math.Abs(maxHeight));
size.Width = temp.Width;
size.Height = temp.Height;
}
var scaledDrawable = new ScaleDrawable(leftResource, 0, (int)size.Width, (int)size.Height).Drawable;
scaledDrawable.SetBounds(0, 0, (int)size.Width, (int)size.Height);
Control.SetCompoundDrawables(scaledDrawable, null, null, null);
}
if (rightResource != null)
{
if (element.ImageRightHeight > 0 && element.ImageRightWidth > 0)
{
size.Width = element.ImageRightWidth;
size.Height = element.ImageRightHeight;
}
else
{
var maxWidth = BaseUIHelper.ConvertDPToPixels(element.Padding.Left) - BaseUIHelper.ConvertDPToPixels(element.Padding.Right) - Control.MeasuredWidth;
var maxHeight = BaseUIHelper.ConvertDPToPixels(element.Padding.Top) - BaseUIHelper.ConvertDPToPixels(element.Padding.Bottom) - Control.MeasuredHeight;
var temp = GetSize(rightResource.IntrinsicWidth, rightResource.IntrinsicHeight, Math.Abs(maxWidth), Math.Abs(maxHeight));
size.Width = temp.Width;
size.Height = temp.Height;
}
var scaledDrawable = new ScaleDrawable(rightResource, 0, (int)size.Width, (int)size.Height).Drawable;
scaledDrawable.SetBounds(0, 0, (int)size.Width, (int)size.Height);
Control.SetCompoundDrawables(null, null, scaledDrawable, null);
}
if (!element.CenterImage)
{
SetImagePadding((int)size.Width);
}
Control.Invalidate();
}
}
catch (Exception e)
{
}
}
protected Windows.Foundation.Size InternalMeasure(Windows.Foundation.Size availableSize, TextBlock control = null)
{
if (Element is Forms9Patch.Label element)
{
control = control ?? Control;
if (control == null || availableSize.Width <= 0 || availableSize.Height <= 0)
{
_lastAvailableSize = availableSize;
_lastElementSize = element.Bounds.Size;
return(new Windows.Foundation.Size(0, 0));
}
// Next block was commented out because of failure to render BcNotes in Heights and Areas (in notes popup and on Disclaimer)
// ... and, by doing so, it broke the picker and the keypad in Heights and Areas.
if (LayoutValid &&
control == Control &&
_lastAvailableSize.Width == availableSize.Width &&
_lastAvailableSize.Height == availableSize.Height &&
_lastElementSize == element.Bounds.Size &&
DateTime.Now - _lastMeasure < TimeSpan.FromSeconds(1))
{
return(_lastInternalMeasure);
}
element.SetIsInNativeLayout(true);
var width = Math.Min(availableSize.Width, int.MaxValue / 2);
var height = Math.Min(availableSize.Height, int.MaxValue / 2);
var result = new Windows.Foundation.Size(width, height);
if (control != null)
{
// reset FontSize
var tmpFontSize = element.DecipheredFontSize();
if (element.SynchronizedFontSize > element.MinFontSize)
{
tmpFontSize = element.SynchronizedFontSize;
}
var minFontSize = element.DecipheredMinFontSize();
control.MaxLines = 0; // int.MaxValue / 3;
control.MaxWidth = double.PositiveInfinity;
control.MaxHeight = double.PositiveInfinity;
control.MinHeight = 0;
control.MinWidth = 0;
control.FontStyle = element.FontAttributes.HasFlag(FontAttributes.Italic) ? FontStyle.Italic : FontStyle.Normal;
control.FontWeight = element.FontAttributes.HasFlag(FontAttributes.Bold) ? FontWeights.Bold : FontWeights.Normal;
control.UpdateLineBreakMode(element);
control.SetAndFormatText(element, tmpFontSize);
control.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
double tmpHt = control.DesiredSize.Height;
_fontMetrics = control.GetFontMetrics();
if (element.Lines == 0)
{
// do our best job to fit the existing space.
if (control.DesiredSize.Width - width > -Precision || control.DesiredSize.Height - height > -Precision)
{
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine(GetType() + ".");
}
tmpFontSize = ZeroLinesFit(element, control, minFontSize, tmpFontSize, width, height);
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine(GetType() + ".");
}
control.SetAndFormatText(element, tmpFontSize);
control.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
tmpHt = control.DesiredSize.Height;
}
}
else if (element.AutoFit == AutoFit.Lines)
{
tmpHt = height;
if (height > int.MaxValue / 3)
{
tmpHt = height = _fontMetrics.HeightForLinesAtFontSize(element.Lines, tmpFontSize);
}
else
{
// set the font size to fit Label.Lines into the available height
var constrainedSize = control.DesiredSize;
tmpFontSize = _fontMetrics.FontSizeFromLinesInHeight(element.Lines, tmpHt);
tmpFontSize = FontExtensions.ClipFontSize(tmpFontSize, element);
control.SetAndFormatText(element, tmpFontSize);
control.Measure(new Windows.Foundation.Size(double.PositiveInfinity, double.PositiveInfinity));
if (element.Lines > 1)
{
var unconstrainedSize = control.DesiredSize;
if (unconstrainedSize.Width > constrainedSize.Width)
{
control.SetAndFormatText(element, tmpFontSize);
control.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
}
}
}
}
else if (element.AutoFit == AutoFit.Width)
{
if (control.ActualWidth > control.DesiredSize.Width || control.DesiredSize.Height / control.LineHeight > element.Lines)
{
tmpFontSize = WidthAndLinesFit(element, control, element.Lines + 1, minFontSize, tmpFontSize, width);
control.SetAndFormatText(element, tmpFontSize);
control.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
tmpHt = control.DesiredSize.Height;
}
}
// none of these should happen so let's keep an eye out for it to be sure everything upstream is working
if (tmpFontSize > element.DecipheredFontSize())
{
throw new Exception("fitting somehow returned a tmpFontSize > label.FontSize");
}
if (tmpFontSize < element.DecipheredMinFontSize())
{
throw new Exception("fitting somehow returned a tmpFontSize < label.MinFontSize");
}
// the following doesn't apply when where growing
//if (tmpFontSize > label.DecipheredMinFontSize() && (control.DesiredSize.Width > Math.Ceiling(w) || control.DesiredSize.Height > Math.Ceiling(Math.Max(availableSize.Height, label.Height))) )
// throw new Exception("We should never exceed the available bounds if the FontSize is greater than label.MinFontSize");
// we needed the following in Android as well. Xamarin layout really doesn't like this to be changed in real time.
if (element != null && Control == control) // multipicker test was getting here with element and Control both null
{
if (tmpFontSize == element.FontSize || (element.FontSize == -1 && tmpFontSize == FontExtensions.DefaultFontSize()))
{
element.FittedFontSize = -1;
}
else if (Math.Abs(element.FittedFontSize - tmpFontSize) > 1)
{
element.FittedFontSize = tmpFontSize;
}
}
result = new Windows.Foundation.Size(Math.Ceiling(control.DesiredSize.Width), Math.Ceiling(tmpHt));
control.MaxLines = element.Lines;
}
element.SetIsInNativeLayout(false);
if (control == Control)
{
LayoutValid = true;
_lastAvailableSize = availableSize;
_lastElementSize = element.Bounds.Size;
//_lastAutoFit = label.AutoFit;
//_lastLines = label.Lines;
_lastMeasure = DateTime.Now;
_lastInternalMeasure = result;
PrivateArrange(availableSize);
}
return(result);
}
return(Windows.Foundation.Size.Empty);
}
public static SizeF ToSizeF(this Size size)
{
return new SizeF((float)size.Width, (float)size.Height);
}
//public GridViewCellContainer(Context context, JWChinese.GridViewCell viewCell, global::Android.Views.View parent, Xamarin.Forms.Size initialCellSize) : base(context)
public GridViewCellContainer(Context context, ViewCell viewCell, global::Android.Views.View parent, Xamarin.Forms.Size initialCellSize) : base(context)
{
using (var h = new Handler(Looper.MainLooper))
{
h.Post(() =>
{
_parent = parent;
_viewCell = viewCell;
//_viewCell.PrepareCell(initialCellSize);
var renderer = Platform.GetRenderer(viewCell.View);
if (renderer == null)
{
renderer = Platform.CreateRenderer(viewCell.View);
Platform.SetRenderer(viewCell.View, renderer);
}
_nativeView = renderer.ViewGroup;
AddView(_nativeView);
});
}
}
public static void resizeImage(string sourceFile, string targetFile, float maxWidth, float maxHeight)
{
if (!File.Exists(targetFile) && File.Exists(sourceFile))
{
// First decode with inJustDecodeBounds=true to check dimensions
var options = new BitmapFactory.Options()
{
InJustDecodeBounds = false,
InPurgeable = true,
};
using (var image = BitmapFactory.DecodeFile(sourceFile, options))
{
if (image != null)
{
var sourceSize = new Xamarin.Forms.Size((int)image.GetBitmapInfo().Height, (int)image.GetBitmapInfo().Width);
var maxResizeFactor = Math.Min(maxWidth / sourceSize.Width, maxHeight / sourceSize.Height);
string targetDir = System.IO.Path.GetDirectoryName(targetFile);
if (!Directory.Exists(targetDir))
{
Directory.CreateDirectory(targetDir);
}
if (maxResizeFactor > 0.9)
{
File.Copy(sourceFile, targetFile);
}
else
{
var width = (int)(maxResizeFactor * sourceSize.Width);
var height = (int)(maxResizeFactor * sourceSize.Height);
/*
* Bitmap scaledBitmap = Bitmap.CreateScaledBitmap(image, width, height, false);
* VideoThumbnailHelper.exportBitmapAsPNGAsync(targetFile, scaledBitmap);
*/
using (var bitmapScaled = Bitmap.CreateScaledBitmap(image, height, width, true))
{
using (Stream outStream = File.Create(targetFile))
{
if (targetFile.ToLower().EndsWith("png"))
{
bitmapScaled.Compress(Bitmap.CompressFormat.Png, 100, outStream);
}
else
{
bitmapScaled.Compress(Bitmap.CompressFormat.Jpeg, 100, outStream);
}
}
bitmapScaled.Recycle();
}
}
image.Recycle();
}
else
{
throw new Exception("ImageResizeHelper.cs - Image scaling failed of " + sourceFile);
}
}
}
}
protected override Windows.Foundation.Size MeasureOverride(Windows.Foundation.Size availableSize)
{
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
var label = Element;
var textBlock = Control;
DebugMessage("[" + _measureOverrideInvocation + "] MeasureOverride pre-Enter availableSize=[" + availableSize + "] ElemmentSize=[" + Element.Bounds.Size + "] PageSize=[" + Xamarin.Forms.Application.Current.MainPage.Bounds.Size + "]");
DebugMessage("[" + _measureOverrideInvocation + "] \t\t availWidth>=Page.Width=[" + (Math.Round(availableSize.Width) >= Math.Round(Xamarin.Forms.Application.Current.MainPage.Width)) + "]");
DebugMessage("[" + _measureOverrideInvocation + "] \t\t availHeight>=Page.Height=[" + (Math.Round(availableSize.Height) >= Math.Round(Xamarin.Forms.Application.Current.MainPage.Height)) + "]");
DebugMessage("[" + _measureOverrideInvocation + "] \t\t Element.Parent=[" + Element.Parent + "]");
DebugMessage("[" + _measureOverrideInvocation + "] \t\t MeasureOverride FontSize=[" + textBlock.FontSize + "] BaseLineOffset=[" + textBlock.BaselineOffset + "] LineHeight=[" + textBlock.LineHeight + "]");
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
if (label == null || textBlock == null || availableSize.Width == 0 || availableSize.Height == 0)
{
return(new Windows.Foundation.Size(0, 0));
}
//if (Double.IsInfinity(availableSize.Height) && Double.IsInfinity(availableSize.Width))
// LayoutValid = false;
if (LayoutValid && _lastAvailableSize.Width <= availableSize.Width && _lastAvailableSize.Height <= availableSize.Height && _lastElementSize == Element.Bounds.Size && DateTime.Now - _lastMeasure < TimeSpan.FromSeconds(1))
{
return(_lastMeasureOverrideResult);
}
//_lastAvailableSize = availableSize;
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
DebugMessage("[" + _measureOverrideInvocation + "] MeasureOverride ENTER availableSize=[" + availableSize + "]");
//Element.IsInNativeLayout = true;
label.SetIsInNativeLayout(true);
double width = (Math.Round(availableSize.Width) >= Math.Round(Xamarin.Forms.Application.Current.MainPage.Width)) && label.Width > 0 ? Math.Min(label.Width, availableSize.Width) : availableSize.Width;
double height = (Math.Round(availableSize.Height) >= Math.Round(Xamarin.Forms.Application.Current.MainPage.Height)) && label.Height > 0 ? Math.Min(label.Height, availableSize.Height) : availableSize.Height;
if (Double.IsInfinity(availableSize.Width) && (label.Width < 0 || !newElement))
{
width = availableSize.Width;
}
if (Double.IsInfinity(availableSize.Height) && (label.Height < 0 || !newElement))
{
height = availableSize.Height;
}
newElement = false;
if (Element.Width > 0 && Element.Height > 0 && !Double.IsInfinity(width) && !Double.IsInfinity(height)) // This line was causing UWP to fail to correctly update width of BcOperandLabel during editing.
//if (Element.Width > width && Element.Height > height && !Double.IsInfinity(width) && !Double.IsInfinity(height))
{
width = Math.Max(Element.Width, width);
height = Math.Max(Element.Height, height);
}
DebugMessage("[" + _measureOverrideInvocation + "] \t\t width=[" + width + "] height=[" + height + "]");
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
//double width = !double.IsInfinity(availableSize.Width) && label.Width > 0 ? Math.Min(label.Width, availableSize.Width) : availableSize.Width;
//double height = !double.IsInfinity(availableSize.Height) && label.Height > 0 ? Math.Min(label.Height, availableSize.Height) : availableSize.Height;
//double width = availableSize.Width;
//double height = availableSize.Height;
var result = new Windows.Foundation.Size(width, height);
if (textBlock != null)
{
// reset FontSize
var tmpFontSize = label.DecipheredFontSize();
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
if (Element.SynchronizedFontSize > Element.MinFontSize)
{
tmpFontSize = Element.SynchronizedFontSize;
}
var minFontSize = label.DecipheredMinFontSize();
textBlock.MaxLines = 0; // int.MaxValue / 3;
textBlock.MaxWidth = double.PositiveInfinity;
textBlock.MaxHeight = double.PositiveInfinity;
textBlock.MinHeight = 0;
textBlock.MinWidth = 0;
//textBlock.LineStackingStrategy = LineStackingStrategy.
// textBlock.TextWrapping = TextWrapping.WrapWholeWords;
UpdateLineBreakMode(textBlock);
double tmpHt = -1;
textBlock.SetAndFormatText(label, tmpFontSize);
textBlock.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
_fontMetrics = textBlock.GetFontMetrics();
if (label.Lines == 0)
{
// do our best job to fit the existing space.
if (textBlock.DesiredSize.Width - width > Precision || textBlock.DesiredSize.Height - height > Precision)
{
tmpFontSize = ZeroLinesFit(label, textBlock, minFontSize, tmpFontSize, width, height);
textBlock.SetAndFormatText(label, tmpFontSize);
textBlock.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
}
}
else if (label.AutoFit == AutoFit.Lines)
{
tmpHt = height;
if (height > int.MaxValue / 3)
{
//tmpHt = height = label.Lines * (_fontMetrics.LineHeightForFontSize(tmpFontSize) + ;
tmpHt = height = _fontMetrics.HeightForLinesAtFontSize(label.Lines, tmpFontSize);
}
else
{// set the font size to fit Label.Lines into the available height
//tmpFontSize = _fontMetrics.FontSizeFromLineHeight(height / label.Lines);
tmpFontSize = _fontMetrics.FontSizeFromLinesInHeight(label.Lines, tmpHt);
tmpFontSize = FontExtensions.ClipFontSize(tmpFontSize, label);
textBlock.SetAndFormatText(label, tmpFontSize);
textBlock.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
}
}
else if (label.AutoFit == AutoFit.Width)
{
//if (textBlock.DesiredSize.Height / textBlock.LineHeight > label.Lines)
if (textBlock.ActualWidth > textBlock.DesiredSize.Width || textBlock.DesiredSize.Height / textBlock.LineHeight > label.Lines)
{
tmpFontSize = WidthAndLinesFit(label, textBlock, label.Lines, minFontSize, tmpFontSize, width);
textBlock.SetAndFormatText(label, tmpFontSize);
textBlock.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
}
}
// autofit is off!
// No need to do anything at the moment. Will textBlock.SetAndFormat and textBlock.Measure at the end
//{
// textBlock.SetAndFormatText(label, tmpFontSize);
// textBlock?.Measure(new Windows.Foundation.Size(w, double.PositiveInfinity));
//}
// none of these should happen so let's keep an eye out for it to be sure everything upstream is working
if (tmpFontSize > label.DecipheredFontSize())
{
throw new Exception("fitting somehow returned a tmpFontSize > label.FontSize");
}
if (tmpFontSize < label.DecipheredMinFontSize())
{
throw new Exception("fitting somehow returned a tmpFontSize < label.MinFontSize");
}
// the following doesn't apply when where growing
//if (tmpFontSize > label.DecipheredMinFontSize() && (textBlock.DesiredSize.Width > Math.Ceiling(w) || textBlock.DesiredSize.Height > Math.Ceiling(Math.Max(availableSize.Height, label.Height))) )
// throw new Exception("We should never exceed the available bounds if the FontSize is greater than label.MinFontSize");
// we needed the following in Android as well. Xamarin layout really doesn't like this to be changed in real time.
if (Element != null && Control != null) // multipicker test was getting here with Element and Control both null
{
if (tmpFontSize == Element.FontSize || (Element.FontSize == -1 && tmpFontSize == FontExtensions.DefaultFontSize()))
{
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
Element.FittedFontSize = -1;
}
else
{
if (DebugCondition)
{
System.Diagnostics.Debug.WriteLine("");
}
Element.FittedFontSize = tmpFontSize;
}
}
DebugMessage("[" + _measureOverrideInvocation + "] MeasureOverride Element.FittedFontSize=[" + Element.FittedFontSize + "]");
/*
* var syncFontSize = ((ILabel)label).SynchronizedFontSize;
* DebugMessage("[" + _measureOverrideInvocation + "] syncFontSize=[" + syncFontSize+"]");
* if (syncFontSize >= 0 && tmpFontSize != syncFontSize)
* {
* tmpHt = -1;
* textBlock.SetAndFormatText(label, syncFontSize);
* textBlock.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
* }
* else
* {
* textBlock.SetAndFormatText(label, tmpFontSize);
* textBlock.Measure(new Windows.Foundation.Size(width, double.PositiveInfinity));
* }
*/
result = new Windows.Foundation.Size(Math.Ceiling(textBlock.DesiredSize.Width), Math.Ceiling(tmpHt > -1 ? tmpHt : textBlock.DesiredSize.Height));
if (DebugCondition && label.Width > 0 && label.Height > 0 && (textBlock.DesiredSize.Width > label.Width || textBlock.DesiredSize.Height > label.Height))
{
System.Diagnostics.Debug.WriteLine("");
}
DebugMessage("[" + _measureOverrideInvocation + "] availableSize=[" + availableSize + "] result=[" + result + "] FontSize=[" + textBlock.FontSize + "] LineHeight=[" + textBlock.LineHeight + "] ");
//System.Diagnostics.Debug.WriteLine("[" + _measureOverrideInvocation + "] MeasureOverride [" + (Element.Text ?? Element.HtmlText)+"] availableSize=[" + availableSize + "] result=[" + result + "] FontSize=[" + textBlock.FontSize + "] LineHeight=[" + textBlock.LineHeight + "] ");
textBlock.MaxLines = label.Lines;
}
label.SetIsInNativeLayout(false);
DebugMessage("[" + _measureOverrideInvocation + "] MeasureOverride EXIT");
LayoutValid = true;
_lastAvailableSize = availableSize;
_lastElementSize = Element.Bounds.Size;
_lastAutoFit = label.AutoFit;
_lastLines = label.Lines;
_lastMeasure = DateTime.Now;
_lastMeasureOverrideResult = result;
if (DebugCondition)
{
_measureOverrideInvocation++;
}
return(result);
}
public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
{
var gridViewCell = Element.ItemTemplate.CreateContent () as FastGridCell;
var initialCellSize = new Xamarin.Forms.Size (Element.ItemWidth, Element.ItemHeight);
var view = new GridViewCellContainer (parent.Context, gridViewCell, parent, initialCellSize);
view.Click += mMainView_Click;
var width = Convert.ToInt32 (Element.ItemWidth);
//TODO the height is just not working out correctly for us - views end up being too small
var height = Convert.ToInt32 (Element.ItemHeight + _gridView.RowSpacing);
var dpW = ConvertDpToPixels (width);
var dpH = ConvertDpToPixels (height);
view.SetMinimumWidth (dpW);
view.SetMinimumHeight (dpH);
view.LayoutParameters = new GridLayoutManager.LayoutParams (dpW, dpH);
GridViewCell myView = new GridViewCell (view);
return myView;
}
public Xamarin.Forms.Size GetCameraSize()
{
Xamarin.Forms.Size camSize = new Xamarin.Forms.Size ();
return camSize;
}
