// ReSharper disable once MethodOverloadWithOptionalParameter
public double CalculateHeight(string text, double width, float textSize, string fontName = null)
{
//uiLabel = new UILabel
//{
// Text = text,
//};
//var font = uiLabel.Font;
//font = font.WithSize(textSize);
//uiLabel.Font = font;
//uiLabel.SetNeedsLayout();
//return uiLabel.Frame.Size.Height;
var nsText = new NSString(text);
var boundSize = new SizeF((float)width, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
if (fontName == null)
{
fontName = "HelveticaNeue";
}
var attributes = new UIStringAttributes
{
Font = UIFont.FromName(fontName, textSize)
};
var sizeF = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
return(sizeF.Height);
}
public static float ContentSize(UITextView textView)
{
var frame = textView.Bounds;
var textContainerInsets = textView.TextContainerInset;
var contentInsents = textView.ContentInset;
var leftRightPadding = textContainerInsets.Left + textContainerInsets.Right + textView.TextContainer.LineFragmentPadding * 2 + contentInsents.Left + contentInsents.Right;
var topBottomPadding = textContainerInsets.Top + textContainerInsets.Bottom + contentInsents.Top + contentInsents.Bottom;
var width = frame.Size.Width;
width -= leftRightPadding;
var height = frame.Size.Height;
height -= topBottomPadding;
frame.Size = new SizeF (width, height);
var text = new NSString (textView.Text);
var attributes = new UIStringAttributes {
Font = textView.Font
};
var size = text.GetBoundingRect (new SizeF (frame.Width, float.MaxValue), NSStringDrawingOptions.UsesLineFragmentOrigin, attributes, new NSStringDrawingContext ());
float measuredHeight = size.Height + topBottomPadding;
return measuredHeight;
}
public static CGSize CalculateTextSize(CGSize frame, string text, UIFont font)
{
if (!string.IsNullOrEmpty(text))
{
CGRect textSize;
using (var ns = new NSString(text))
{
textSize = ns.GetBoundingRect(
frame,
NSStringDrawingOptions.UsesLineFragmentOrigin |
NSStringDrawingOptions.UsesFontLeading,
new UIStringAttributes {
Font = font
},
null);
}
return(new CGSize(
(float)Math.Ceiling(textSize.Width),
(float)Math.Ceiling(textSize.Height)));
}
return(CGSize.Empty);
}
public static void SizeHeaderToFitLabels(this UITableView tableView, List <UILabel> labels, bool ignoreNewLineCharacters = true, float offset = 0f)
{
var currentFrame = tableView.TableHeaderView.Frame;
nfloat sumHeight = 0f;
foreach (UILabel label in labels)
{
label.Text = FormatString(ignoreNewLineCharacters, label.Text);
var nstext = new NSString(label.Text);
var firstAttributes = new UIStringAttributes {
Font = label.Font,
};
var temp = nstext.GetBoundingRect(new CGSize(label.Frame.Width, 0), NSStringDrawingOptions.UsesLineFragmentOrigin, firstAttributes, null);
sumHeight += temp.Height;
}
var viewsThatAreAlighedToTheLeftOfTheScreen = tableView.TableHeaderView.Subviews.Where(v => v.Frame.Left <= (tableView.TableHeaderView.Frame.GetMidX() / 2f)).OrderBy(v => v.Frame.Top).ToList();
var otherViews = viewsThatAreAlighedToTheLeftOfTheScreen.Where(v => !labels.Contains(v)).ToList();
var otherViewsHeight = otherViews.Sum(v => v.Frame.Height);
var spacing = currentFrame.Height - (viewsThatAreAlighedToTheLeftOfTheScreen.Sum(v => v.Frame.Height));
var finalHeight = (float)((double)spacing + otherViewsHeight + (double)sumHeight) + offset;
currentFrame.Height = finalHeight;
tableView.TableHeaderView.Frame = currentFrame;
}
private static void ProcessSubtitle(
this AVPlayerViewController controller,
CMTime time)
{
NSString text = NSString.Empty;
NSArray payload = controller.Payload();
for (nuint i = 0; i < payload.Count; ++i)
{
NSDictionary item = payload.GetItem <NSDictionary>(i);
NSNumber from = item.ObjectForKey(new NSString("from")) as NSNumber;
NSNumber to = item.ObjectForKey(new NSString("to")) as NSNumber;
if (time.Seconds >= from.FloatValue &&
time.Seconds < to.FloatValue)
{
text = item.ObjectForKey(new NSString("text")) as NSString;
break;
}
}
UILabel subtitleLabel = controller.SubtitleLabel();
subtitleLabel.Text = text;
var attributes = new UIStringAttributes();
attributes.Font = subtitleLabel.Font;
CGRect rect = text.GetBoundingRect(
new CGSize(subtitleLabel.Bounds.Width, nfloat.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
attributes, null
);
controller.SubtitleConstranint().Constant = rect.Size.Height + 5;
}
public override Xamarin.Forms.Size Measure(string text, double fontSize, string fontName)
{
UIFont font = this.getFont(fontName, fontSize);
UIStringAttributes attributes = new UIStringAttributes();
attributes.Font = font;
SizeF boundSize = new SizeF(float.PositiveInfinity, float.PositiveInfinity);
NSStringDrawingOptions options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
NSString nsText = new NSString(text);
CGSize resultSize = nsText.GetBoundingRect(
boundSize,
options,
attributes,
null).Size;
nsText.Dispose();
return(new Xamarin.Forms.Size(
Math.Ceiling((double)resultSize.Width),
Math.Ceiling((double)resultSize.Height)));
}
private static void GetFontSize(UILabel label, CGSize size, int maxFontSize, int minFontSize)
{
label.Frame = new CGRect(CGPoint.Empty, size);
var fontSize = maxFontSize;
var constraintSize = new CGSize(label.Frame.Width, nfloat.MaxValue);
while (fontSize > minFontSize)
{
label.Font = UIFont.FromName(label.Font.Name, fontSize);
using (var nativeString = new NSString(label.Text))
{
var textRect = nativeString.GetBoundingRect(
constraintSize,
NSStringDrawingOptions.UsesFontLeading,
new UIStringAttributes {
Font = label.Font
},
null
);
if (textRect.Size.Height <= label.Frame.Height)
{
break;
}
}
fontSize -= 2;
}
}
public static float ContentSize(UITextView textView)
{
var frame = textView.Bounds;
var textContainerInsets = textView.TextContainerInset;
var contentInsents = textView.ContentInset;
var leftRightPadding = textContainerInsets.Left + textContainerInsets.Right + textView.TextContainer.LineFragmentPadding * 2 + contentInsents.Left + contentInsents.Right;
var topBottomPadding = textContainerInsets.Top + textContainerInsets.Bottom + contentInsents.Top + contentInsents.Bottom;
frame.Size.Width -= leftRightPadding;
frame.Size.Height -= topBottomPadding;
var text = new NSString(textView.Text);
var paragraphStyle = new NSMutableParagraphStyle {
LineBreakMode = UILineBreakMode.WordWrap,
};
var attributes = new UIStringAttributes {
Font = textView.Font
};
var size = text.GetBoundingRect(new SizeF(frame.Width, float.MaxValue), NSStringDrawingOptions.UsesLineFragmentOrigin, attributes, new NSStringDrawingContext());
float measuredHeight = size.Height + topBottomPadding;
return(measuredHeight);
}
private void UpdateTextSizing()
{
if (String.IsNullOrEmpty(_materialButton.Text) || !_withIcon)
{
this.Control.TitleEdgeInsets = new UIEdgeInsets(0, 0, 0, 0);
return;
}
// We have to set the button title insets to make the button look
// like Android's material buttons. (icon on left, text is centralized)
//
NSString textToMeasure = (NSString)(_materialButton.Text ?? "");
CGRect labelRect = textToMeasure.GetBoundingRect(
new CGSize(this.Frame.Width - 40, nfloat.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes()
{
Font = this.Control.Font
},
new NSStringDrawingContext()
);
float textWidth = (float)labelRect.Size.Width;
float buttonWidth = (float)this.Control.Frame.Width;
float inset = ((buttonWidth - textWidth) / 2) - 28;
this.Control.TitleEdgeInsets = new UIEdgeInsets(0, inset, 0, -40);
}
private static void GetFontSize(UILabel label, CGSize size, int maxFontSize, int minFontSize)
{
label.Frame = new CGRect(CGPoint.Empty, size);
var fontSize = maxFontSize;
var constraintSize = new CGSize(label.Frame.Width, nfloat.MaxValue);
while (fontSize > minFontSize)
{
label.Font = UIFont.FromName(label.Font.Name, fontSize);
using (var nativeString = new NSString(label.Text))
{
var textRect = nativeString.GetBoundingRect(
constraintSize,
NSStringDrawingOptions.UsesFontLeading,
new UIStringAttributes { Font = label.Font},
null
);
if (textRect.Size.Height <= label.Frame.Height)
{
break;
}
}
fontSize -= 2;
}
}
private UIImage CreateImage (NSString title, float scale)
{
var titleAttrs = new UIStringAttributes () {
Font = UIFont.FromName ("HelveticaNeue", 13f),
ForegroundColor = Color.Gray,
};
var titleBounds = title.GetBoundingRect (
new SizeF (Single.PositiveInfinity, Single.PositiveInfinity),
NSStringDrawingOptions.UsesFontLeading | NSStringDrawingOptions.UsesDeviceMetrics,
titleAttrs,
null);
var image = Image.TagBackground;
var imageBounds = new RectangleF (
0, 0,
(float)Math.Ceiling (titleBounds.Width) + image.CapInsets.Left + image.CapInsets.Right + 4f,
(float)Math.Ceiling (titleBounds.Height) + image.CapInsets.Top + image.CapInsets.Bottom
);
titleBounds.X = image.CapInsets.Left + 2f;
titleBounds.Y = image.CapInsets.Top;
UIGraphics.BeginImageContextWithOptions (imageBounds.Size, false, scale);
try {
image.Draw (imageBounds);
title.DrawString (titleBounds, titleAttrs);
return UIGraphics.GetImageFromCurrentImageContext ();
} finally {
UIGraphics.EndImageContext ();
}
}
public override float GetHeightForRow (UITableView tableView, NSIndexPath indexPath)
{
FeedItem comment = FeedItems [indexPath.Item];
NSString caption = new NSString (comment.Caption);
RectangleF rect = caption.GetBoundingRect (new SizeF (150, 0), NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes () { }, null);
return Math.Max (55, rect.Height);
}
public static CGSize StringSize(this UIFont font, NSString String, double width)
{
var attributes = new UIStringAttributes();
attributes.Font = font;
return(String.GetBoundingRect(new CGSize(width, double.MaxValue),
options: NSStringDrawingOptions.UsesLineFragmentOrigin,
attributes: attributes,
context: null).Size);
}
/// <summary>
/// Gets the rectangle of a string.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="width">The width.</param>
/// <returns>CGRect.</returns>
public static CGRect StringRect(this string text, UIFont font, nfloat width)
{
var nativeString = new NSString(text);
return nativeString.GetBoundingRect(
new CGSize(width, float.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes { Font = font },
null);
}
public static nfloat GetHeightForMultilineLabelWithString(this string str, nfloat width, UIFont font)
{
var nativeString = new NSString(str);
CGSize maxLabelSize = new CGSize(width, float.MaxValue);
CGRect textRect = nativeString.GetBoundingRect(maxLabelSize, NSStringDrawingOptions.UsesLineFragmentOrigin, new UIStringAttributes {
Font = font
}, null);
return(textRect.Size.Height);
}
/// <summary>
/// Gets the rectangle of a string.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="width">The width.</param>
/// <returns>CGRect.</returns>
public static CGRect StringRect(this string text, UIFont font, nfloat width)
{
var nativeString = new NSString(text);
return(nativeString.GetBoundingRect(
new CGSize(width, float.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes {
Font = font
},
null));
}
public static float StringHeight(this string text, UIFont font, float width)
{
var nativeString = new NSString(text);
var rect = nativeString.GetBoundingRect(
new System.Drawing.SizeF(width, float.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes() { Font = font },
null);
return rect.Height;
}
private CGSize SizeOfString(NSString text)
{
CGSize constraint = new CGSize(1000, 1000);
CGSize textSize = text.GetBoundingRect(constraint,
options: NSStringDrawingOptions.UsesLineFragmentOrigin,
attributes: new UIStringAttributes {
Font = UIFont.BoldSystemFontOfSize(this.FontSize)
},
context: null).Size;
textSize.Width += text.Length * 2;
return(textSize);
}
private CGSize CalculateStringSize(string note, UIFont font)
{
CGSize constraint = new CGSize(paperWidth - (paperWidth / 1.7f) - points_per_inch, nfloat.MaxValue);
NSString str = new NSString(note);
UIStringAttributes attributes1 = new UIStringAttributes();
attributes1.Font = font;
var rect = str.GetBoundingRect(constraint, NSStringDrawingOptions.UsesLineFragmentOrigin, attributes1, null);
return(rect.Size);
}
private nfloat TextHeight(CGRect bounds, string text, UIFont font)
{
using (NSString str = new NSString(text))
{
return(str.GetBoundingRect(new CGSize(bounds.Width - 20, 1000), NSStringDrawingOptions.UsesLineFragmentOrigin, new UIStringAttributes()
{
Font = font,
ParagraphStyle = new NSMutableParagraphStyle()
{
LineBreakMode = UILineBreakMode.WordWrap,
},
}, null).Height);
}
}
/// <summary>
/// Strings the height.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="font">The font.</param>
/// <param name="width">The width.</param>
/// <returns>System.Single.</returns>
public static float StringHeight(this string text, UIFont font, float width)
{
var nativeString = new NSString(text);
var rect = nativeString.GetBoundingRect(
new SizeF(width, float.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes {
Font = font
},
null);
return(rect.Height);
}
private nfloat TextHeight(RectangleF bounds)
{
using (NSString str = new NSString(this.Subject))
{
return(str.GetBoundingRect(new SizeF(bounds.Width - 20, 1000), NSStringDrawingOptions.UsesLineFragmentOrigin, new UIStringAttributes()
{
Font = subjectFont,
ParagraphStyle = new NSMutableParagraphStyle()
{
LineBreakMode = UILineBreakMode.WordWrap,
},
}, null).Height);
}
}
float GetStringHeight(string text, UIFont font, float width)
{
var nativeString = new NSString(text);
var rect = nativeString.GetBoundingRect(
new System.Drawing.SizeF(width, float.MaxValue),
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes()
{
Font = font
},
null);
return((float)rect.Height);
}
public static nfloat StringHeight(this string text, UIFont font, nfloat width)
{
var nativeString = new NSString(text);
var rect = nativeString.GetBoundingRect(
new CGSize(width, float.MaxValue),
NSStringDrawingOptions.OneShot,
new UIStringAttributes()
{
Font = font
},
null);
return(rect.Height);
}
private nfloat GetHeightFromText(string text)
{
var explanation = new NSString(text);
var textSize = new CGSize(txtExplain.Frame.Width, 1000);
var size = explanation.GetBoundingRect(textSize,
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes()
{
Font = UIFont.FromName("HelveticaNeue", 14f)
},
null);
return(size.Height);
}
public Size Measure(FormattedText formattedText)
{
var width = formattedText.Constraint.Width;
var options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
var boundSize = new SizeF((float)width, float.MaxValue);
var nsText = new NSString(formattedText.Text);
var attributes = new UIStringAttributes
{
Font = UIFont.FromName(formattedText.FontName, formattedText.FontSize),
};
var sizeF = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
return(sizeF.ToOmniGui());
}
public static SizeF MeasureTextSize(this string text, double width, double fontsize, string fontName = "HelveticaNeue")
{
var nsText = new NSString(text);
var boundSize = new SizeF((float)width, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading | NSStringDrawingOptions.UsesLineFragmentOrigin;
var attributes = new UIStringAttributes
{
Font = UIFont.FromName(fontName, (float)fontsize)
};
var size = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
return(new SizeF((float)size.Width, (float)size.Height));
}
//
// Summary:
// Calculates the dimensions of the text of given font
//
// Parameters:
// font:
// The font used to draw the text
// text:
// The text string to be measured
// height:
// The max. height of the text. Single line
//
// Remarks:
// This method emulates drawing the text string with one single
// line and return the width and height sufficient to accomodate
// the given string draw with the given font
//
// Returns:
// Returns the bounding rectangle for drawing the given string
//
private CGSize measureText(UIFont font, string text, nfloat height)
{
var nsText = new NSString(text);
var boundSize = new CGSize(float.MaxValue, height);
var options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
var attributes = new UIStringAttributes
{
Font = font
};
var sizeF = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
return(sizeF);
}
public void desenharTextoLabel(string Texto, float x, float y, PonteiroCorEnum cor)
{
var currentContext = UIGraphics.GetCurrentContext();
currentContext.SelectFont("Arial", 22f, CGTextEncoding.MacRoman);
currentContext.SetTextDrawingMode(CGTextDrawingMode.Fill);
currentContext.SetFillColor(pegarCor(cor));
var nsText = new NSString(Texto);
var boundSize = new SizeF((float)x, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
var attributes = new UIStringAttributes
{
Font = UIFont.FromName("Arial", (float)22)
};
var sizeF = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
if (TelaUtils.Orientacao == "LandscapeLeft" || TelaUtils.Orientacao == "LandscapeRight")
{
if (TelaUtils.Dispositivo == "Pad")
{
currentContext.ShowTextAtPoint((this.pegarLarguraTela() - sizeF.Width) / 3, y - 60, Texto);
}
else
{
currentContext.ShowTextAtPoint((this.pegarLarguraTela() - sizeF.Width) / 3, y - 65, Texto);
}
}
else
{
if (TelaUtils.Dispositivo == "Pad")
{
currentContext.ShowTextAtPoint((this.pegarLarguraTela() - sizeF.Width) / 2, y - 300, Texto);
}
else
{
currentContext.ShowTextAtPoint((this.pegarLarguraTela() - sizeF.Width) / 2, y - 35, Texto);
}
}
currentContext.DrawPath(CoreGraphics.CGPathDrawingMode.FillStroke);
}
public void DrawingExtensions()
{
TestRuntime.AssertXcodeVersion(5, 0);
using (var s = new NSString("foo")) {
NSStringDrawingOptions options = NSStringDrawingOptions.OneShot;
var attrib = new UIStringAttributes();
using (var dict = new NSDictionary()) {
Assert.DoesNotThrow(() => s.GetBoundingRect(new SizeF(5, 5), options, attrib, null), "GetBoundingRect 1");
Assert.DoesNotThrow(() => s.WeakGetBoundingRect(new SizeF(5, 5), options, dict, null), "WeakGetBoundingRect 1");
Assert.DoesNotThrow(() => s.DrawString(new RectangleF(0, 0, 10, 10), options, attrib, null), "DrawString 1");
Assert.DoesNotThrow(() => s.WeakDrawString(new RectangleF(0, 0, 10, 10), options, dict, null), "WeakDrawString 1");
Assert.DoesNotThrow(() => s.WeakDrawString(new RectangleF(0, 0, 10, 10), dict), "WeakDrawString 2");
Assert.DoesNotThrow(() => s.WeakDrawString(new PointF(0, 0), dict), "WeakDrawString 3");
}
}
}
public static nfloat HeightForFont(UIFont font, string s, nfloat width)
{
CGSize availableSize = new CGSize(width, float.MaxValue);
NSString ns = new NSString(s);
return(ns.GetBoundingRect(
availableSize,
NSStringDrawingOptions.UsesLineFragmentOrigin,
new UIStringAttributes
{
ParagraphStyle = new NSMutableParagraphStyle {
LineBreakMode = UILineBreakMode.WordWrap
},
Font = font
},
context: null).Height);
}
public Xamarin.Forms.Size GetTextSize(
string text,
double maxWidth,
double fontSize = 0,
string fontName = null)
{
if (fontSize <= 0)
{
fontSize = UIFont.SystemFontSize;
}
UIFont font = null;
if (string.IsNullOrEmpty(fontName))
{
font = UIFont.SystemFontOfSize((nfloat)fontSize);
}
else
{
font = UIFont.FromName(fontName, (nfloat)fontSize);
}
var attributes = new UIStringAttributes {
Font = font
};
var boundSize = new SizeF((float)maxWidth, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
var nsText = new NSString(text);
var resultSize = nsText.GetBoundingRect(
boundSize,
options,
attributes,
null).Size;
font.Dispose();
nsText.Dispose();
return(new Xamarin.Forms.Size(
Math.Ceiling((double)resultSize.Width),
Math.Ceiling((double)resultSize.Height)));
}
private CGSize MeasureTextSize(string text, double width,
double fontSize, string fontName = null)
{
var nsText = new NSString(text);
var boundSize = new SizeF((float)width, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading |
NSStringDrawingOptions.UsesLineFragmentOrigin;
if (fontName == null)
{
fontName = "HelveticaNeue";
}
var attributes = new UIStringAttributes {
Font = UIFont.FromName(fontName, (float)fontSize)
};
return(nsText.GetBoundingRect(boundSize, options, attributes, null).Size);
}
public double MeasureTextSize(string text, double width, double fontSize, string fontName = null)
{
var nsText = new NSString(text);
var boundSize = new SizeF((float)width, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading | NSStringDrawingOptions.UsesLineFragmentOrigin;
if (fontName == null)
{
fontName = "HelveticaNeue";
}
var attributes = new UIStringAttributes
{
Font = UIFont.FromName(fontName, (float)fontSize)
};
var sizeF = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
//return new Xamarin.Forms.Size((double)sizeF.Width, (double)sizeF.Height);
return((double)sizeF.Height + 50);
}
public void DrawingExtensions()
{
if (!TestRuntime.CheckSystemAndSDKVersion(7, 0))
{
Assert.Inconclusive("requires iOS7+");
}
using (var s = new NSString("foo")) {
NSStringDrawingOptions options = NSStringDrawingOptions.OneShot;
var attrib = new UIStringAttributes();
using (var dict = new NSDictionary()) {
Assert.DoesNotThrow(() => s.GetBoundingRect(new SizeF(5, 5), options, attrib, null), "GetBoundingRect 1");
Assert.DoesNotThrow(() => s.WeakGetBoundingRect(new SizeF(5, 5), options, dict, null), "WeakGetBoundingRect 1");
Assert.DoesNotThrow(() => s.DrawString(new RectangleF(0, 0, 10, 10), options, attrib, null), "DrawString 1");
Assert.DoesNotThrow(() => s.WeakDrawString(new RectangleF(0, 0, 10, 10), options, dict, null), "WeakDrawString 1");
Assert.DoesNotThrow(() => s.WeakDrawString(new RectangleF(0, 0, 10, 10), dict), "WeakDrawString 2");
Assert.DoesNotThrow(() => s.WeakDrawString(new PointF(0, 0), dict), "WeakDrawString 3");
}
}
}
public double MeasureTextSize(string text, double width, double fontSize, string fontName = null)
{
var nsText = new NSString(text);
var boundSize = new SizeF((float)width, float.MaxValue);
var options = NSStringDrawingOptions.UsesFontLeading | NSStringDrawingOptions.UsesLineFragmentOrigin;
if (fontName == null)
{
fontName = "HelveticaNeue";
}
var attributes = new UIStringAttributes
{
Font = UIFont.FromName(fontName, (float)fontSize)
};
var sizeF = nsText.GetBoundingRect(boundSize, options, attributes, null).Size;
return (double)sizeF.Height + 5;
}
public void DrawingExtensions()
{
TestRuntime.AssertXcodeVersion(5, 0);
TestRuntime.AssertSystemVersion(PlatformName.MacOSX, 10, 11, throwIfOtherPlatform: false);
using (var s = new NSString("foo")) {
NSStringDrawingOptions options = NSStringDrawingOptions.OneShot;
var attrib = new UIStringAttributes();
using (var dict = new NSDictionary()) {
Assert.DoesNotThrow(() => s.GetBoundingRect(new CGSize(5, 5), options, attrib, null), "GetBoundingRect 1");
Assert.DoesNotThrow(() => s.WeakGetBoundingRect(new CGSize(5, 5), options, dict, null), "WeakGetBoundingRect 1");
Assert.DoesNotThrow(() => s.DrawString(new CGRect(0, 0, 10, 10), options, attrib, null), "DrawString 1");
Assert.DoesNotThrow(() => s.WeakDrawString(new CGRect(0, 0, 10, 10), options, dict, null), "WeakDrawString 1");
#if !MONOMAC //WeakDrawString on mac doesn't have versions with these parameters
Assert.DoesNotThrow(() => s.WeakDrawString(new CGRect(0, 0, 10, 10), dict), "WeakDrawString 2");
Assert.DoesNotThrow(() => s.WeakDrawString(new CGPoint(0, 0), dict), "WeakDrawString 3");
#endif
}
}
}
private CGRect AutoCompleteRectForBounds(CGRect bounds)
{
// get bounds for whole text area
CGRect textRectBounds = this.TextRect(bounds);
if (this.BeginningOfDocument == null)
return CGRect.Empty;
// get rect for actual text
UITextRange textRange = this.GetTextRange(this.BeginningOfDocument, this.EndOfDocument);
CGRect textRect = this.GetFirstRectForRange(textRange).Integral();
NSMutableParagraphStyle paragraphStyle = new NSMutableParagraphStyle();
paragraphStyle.LineBreakMode = UILineBreakMode.CharacterWrap;
NSString text = new NSString(this.Text);
UIStringAttributes attributes = new UIStringAttributes();
attributes.Font = this.Font;
attributes.ParagraphStyle = paragraphStyle;
CGRect prefixTextRect = text.GetBoundingRect(
textRect.Size,
NSStringDrawingOptions.UsesLineFragmentOrigin | NSStringDrawingOptions.UsesFontLeading,
attributes, null
);
CGSize prefixTextSize = prefixTextRect.Size;
NSString str = new NSString(autocompleteString);
CGRect autocompleteTextRect = str.GetBoundingRect(
new CGSize(textRectBounds.Size.Width - prefixTextSize.Width, textRectBounds.Size.Height),
NSStringDrawingOptions.UsesLineFragmentOrigin | NSStringDrawingOptions.UsesFontLeading,
attributes, null
);
CGSize autocompleteTextSize = autocompleteTextRect.Size;
return new CGRect(textRect.GetMaxX() + 6, //6 - correction
textRectBounds.GetMinY() - 1, //1 - correction
autocompleteTextSize.Width,
textRectBounds.Size.Height);
}
public static void SizeHeaderToFitLabels(this UITableView tableView, List<UILabel> labels, bool ignoreNewLineCharacters = true, float offset = 0f)
{
var currentFrame = tableView.TableHeaderView.Frame;
nfloat sumHeight = 0f;
foreach (UILabel label in labels)
{
label.Text = FormatString (ignoreNewLineCharacters, label.Text);
var nstext = new NSString (label.Text);
var firstAttributes = new UIStringAttributes {
Font = label.Font,
};
var temp = nstext.GetBoundingRect (new CGSize (label.Frame.Width, 0), NSStringDrawingOptions.UsesLineFragmentOrigin, firstAttributes, null);
sumHeight += temp.Height;
}
var viewsThatAreAlighedToTheLeftOfTheScreen = tableView.TableHeaderView.Subviews.Where (v=> v.Frame.Left <= (tableView.TableHeaderView.Frame.GetMidX()/2f)).OrderBy(v=> v.Frame.Top).ToList();
var otherViews = viewsThatAreAlighedToTheLeftOfTheScreen.Where(v=> !labels.Contains(v)).ToList();
var otherViewsHeight = otherViews.Sum (v => v.Frame.Height);
var spacing = currentFrame.Height - (viewsThatAreAlighedToTheLeftOfTheScreen.Sum(v=> v.Frame.Height));
var finalHeight = (float) ((double)spacing + otherViewsHeight + (double)sumHeight) + offset;
currentFrame.Height = finalHeight;
tableView.TableHeaderView.Frame = currentFrame;
}
SizeF GetSizeForText (UIView tv, string text, bool splitLine){
NSString nsText = new NSString (text);
var textRect = nsText.GetBoundingRect (new SizeF (tv.Bounds.Width * .9f - 10 - 22, 99999), (splitLine ? NSStringDrawingOptions.UsesLineFragmentOrigin : 0), new UIStringAttributes { Font = font }, new NSStringDrawingContext ());
return new SizeF (textRect.Width, textRect.Height);
}
private nfloat TextHeight (RectangleF bounds)
{
using (NSString str = new NSString (this.Subject))
{
return str.GetBoundingRect (new SizeF (bounds.Width - 20, 1000), NSStringDrawingOptions.UsesLineFragmentOrigin, new UIStringAttributes ()
{
Font = subjectFont,
ParagraphStyle = new NSMutableParagraphStyle ()
{
LineBreakMode = UILineBreakMode.WordWrap,
},
}, null).Height;
}
}