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using Xamarin.Forms.PlatformConfiguration.TizenSpecific;
using EColor = ElmSharp.Color;
using Specific = Xamarin.Forms.PlatformConfiguration.TizenSpecific.Label;
namespace Xamarin.Forms.Platform.Tizen
{
public class LabelRenderer : ViewRenderer<Label, Native.Label>
{
static readonly EColor s_defaultBackgroundColor = EColor.Transparent;
static readonly EColor s_defaultForegroundColor = EColor.Black;
static readonly EColor s_defaultTextColor = s_defaultForegroundColor;
public LabelRenderer()
{
RegisterPropertyHandler(Label.TextProperty, () => Control.Text = Element.Text);
RegisterPropertyHandler(Label.TextColorProperty, UpdateTextColor);
// FontProperty change is called also for FontSizeProperty, FontFamilyProperty and FontAttributesProperty change
RegisterPropertyHandler(Label.FontProperty, UpdateFontProperties);
RegisterPropertyHandler(Label.LineBreakModeProperty, UpdateLineBreakMode);
RegisterPropertyHandler(Label.HorizontalTextAlignmentProperty, UpdateTextAlignment);
RegisterPropertyHandler(Label.VerticalTextAlignmentProperty, UpdateTextAlignment);
RegisterPropertyHandler(Label.FormattedTextProperty, UpdateFormattedText);
RegisterPropertyHandler(Specific.FontWeightProperty, UpdateFontWeight);
}
protected override void OnElementChanged(ElementChangedEventArgs<Label> e)
{
if (Control == null)
{
var label = new Native.Label(Forms.Context.MainWindow);
base.SetNativeControl(label);
}
if (e.OldElement != null)
{
}
if (e.NewElement != null)
{
}
base.OnElementChanged(e);
}
protected override Size MinimumSize()
{
return new Size(Control.MinimumWidth, Control.MinimumHeight);
}
Native.FormattedString ConvertFormattedText(FormattedString formattedString)
{
if (formattedString == null)
{
return null;
}
Native.FormattedString nativeString = new Native.FormattedString();
foreach (var span in formattedString.Spans)
{
Native.Span nativeSpan = new Native.Span();
nativeSpan.Text = span.Text;
nativeSpan.FontAttributes = span.FontAttributes;
nativeSpan.FontFamily = span.FontFamily;
nativeSpan.FontSize = span.FontSize;
nativeSpan.LineBreakMode = Control.LineBreakMode;
nativeSpan.HorizontalTextAlignment = Control.HorizontalTextAlignment;
nativeSpan.VerticalTextAlignment = Control.VerticalTextAlignment;
nativeSpan.ForegroundColor = span.ForegroundColor.ToNative();
nativeSpan.BackgroundColor = span.BackgroundColor.ToNative();
nativeString.Spans.Add(nativeSpan);
}
return nativeString;
}
void UpdateFormattedText()
{
if(Element.FormattedText != null)
Control.FormattedText = ConvertFormattedText(Element.FormattedText);
}
void UpdateTextColor()
{
Control.TextColor = Element.TextColor.IsDefault ? s_defaultTextColor : Element.TextColor.ToNative();
}
void UpdateTextAlignment()
{
if (Control.FormattedText != null)
{
foreach (var span in Control.FormattedText.Spans)
{
span.HorizontalTextAlignment = Element.HorizontalTextAlignment.ToNative();
span.VerticalTextAlignment = Element.VerticalTextAlignment.ToNative();
}
}
Control.HorizontalTextAlignment = Element.HorizontalTextAlignment.ToNative();
Control.VerticalTextAlignment = Element.VerticalTextAlignment.ToNative();
}
void UpdateFontProperties()
{
Control.FontSize = Element.FontSize;
Control.FontAttributes = Element.FontAttributes;
Control.FontFamily = Element.FontFamily;
}
void UpdateLineBreakMode()
{
if (Control.FormattedText != null)
{
foreach (var span in Control.FormattedText.Spans)
{
span.LineBreakMode = ConvertToNativeLineBreakMode(Element.LineBreakMode);
}
}
Control.LineBreakMode = ConvertToNativeLineBreakMode(Element.LineBreakMode);
}
void UpdateFontWeight()
{
var weight = Specific.GetFontWeight(Element);
if (Control.FormattedText != null)
{
foreach (var span in Control.FormattedText.Spans)
{
span.FontWeight = ConvertToNativeFontWeight(weight);
}
}
Control.FontWeight = ConvertToNativeFontWeight(weight);
}
Native.LineBreakMode ConvertToNativeLineBreakMode(LineBreakMode mode)
{
switch (mode)
{
case LineBreakMode.CharacterWrap:
return Native.LineBreakMode.CharacterWrap;
case LineBreakMode.HeadTruncation:
return Native.LineBreakMode.HeadTruncation;
case LineBreakMode.MiddleTruncation:
return Native.LineBreakMode.MiddleTruncation;
case LineBreakMode.NoWrap:
return Native.LineBreakMode.NoWrap;
case LineBreakMode.TailTruncation:
return Native.LineBreakMode.TailTruncation;
case LineBreakMode.WordWrap:
default:
return Native.LineBreakMode.WordWrap;
}
}
Native.FontWeight ConvertToNativeFontWeight(FontWeight weight)
{
switch (weight)
{
case FontWeight.Bold:
return Native.FontWeight.Bold;
case FontWeight.SemiBold:
return Native.FontWeight.SemiBold;
case FontWeight.UltraBold:
return Native.FontWeight.UltraBold;
case FontWeight.Black:
return Native.FontWeight.Black;
case FontWeight.ExtraBlack:
return Native.FontWeight.ExtraBlack;
case FontWeight.Book:
return Native.FontWeight.Book;
case FontWeight.Light:
return Native.FontWeight.Light;
case FontWeight.Medium:
return Native.FontWeight.Medium;
case FontWeight.Normal:
return Native.FontWeight.Normal;
case FontWeight.Thin:
return Native.FontWeight.Thin;
case FontWeight.UltraLight:
return Native.FontWeight.UltraLight;
default:
return Native.FontWeight.None;
}
}
}
}
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