protected override void OnElementChanged(ElementChangedEventArgs <Label> e)
{
base.OnElementChanged(e);
initPaintFlags = Control.PaintFlags;
SetMaxLines();
UpdateHasUnderLine();
}
public void DrawLine(Pen pen, float x1, float y1, float x2, float y2)
{
this.paint.Color = pen.Color.ToAColor();
this.paint.Flags = this.Flags;
this.paint.SetStyle(Paint.Style.Stroke);
this.paint.StrokeWidth = pen.Width;
this.canvas.DrawLine(x1, y1, x2, y2, paint);
}
public void DrawRectangle(Pen pen, float x1, float y1, float w, float h)
{
this.paint.Color = pen.Color.ToAColor();
this.paint.Flags = this.Flags;
this.paint.SetStyle(Paint.Style.Stroke);
this.paint.StrokeWidth = pen.Width;
this.canvas.DrawRect(x1, y1, x1 + w, y1 + h, this.paint);
}
static public Paint Create(Color color, Paint.Style style, PaintFlags paint_flags)
{
Paint paint = new Paint(paint_flags);
paint.Color = color;
paint.SetStyle(style);
return(paint);
}
public void DrawImage(Bitmap bitmap, Rectangle target, Rectangle source, GraphicsUnit gu)
{
this.paint.Flags = 0;
using (Rect sa = source.ToRect())
using (Rect ta = target.ToRect())
{
this.canvas.DrawBitmap(bitmap, sa, ta, this.paint);
}
}
public ExtendedLabelRenderer(Context context) : base(context)
{
try
{
PaintFlagsOriginal = Control.PaintFlags;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
protected override void OnAttached()
{
var pfLabel = Control as TextView;
if (pfLabel == null)
{
return;
}
paintFlags = pfLabel.PaintFlags;
pfLabel.PaintFlags = Android.Graphics.PaintFlags.UnderlineText;
}
private void UpdateUi(ExtendedEntry extendedElement)
{
if (extendedElement.IsStrikeThrough)
{
PaintFlagsOriginal = Control.PaintFlags;
Control.PaintFlags = Control.PaintFlags | PaintFlags.StrikeThruText;
}
else
{
Control.PaintFlags = PaintFlagsOriginal;
}
}
public override bool LoadFont(Font font)
{
font.RealSize = font.Size * Scale;
Paint paint = font.RendererData as Paint;
if (paint != null)
{
paint.Dispose();
}
TypefaceStyle fontStyle = TypefaceStyle.Normal;
if (font.Bold && font.Italic)
{
fontStyle = TypefaceStyle.BoldItalic;
}
if (font.Italic)
{
fontStyle = TypefaceStyle.Italic;
}
if (font.Bold)
{
fontStyle = TypefaceStyle.Bold;
}
PaintFlags paintFlags = PaintFlags.LinearText;
if (font.Underline)
{
paintFlags |= PaintFlags.UnderlineText;
}
if (font.Strikeout)
{
paintFlags |= PaintFlags.StrikeThruText;
}
Typeface typeface = Typeface.Create(font.FaceName, fontStyle);
paint = new Paint(paintFlags);
paint.SetTypeface(typeface);
paint.SetStyle(Paint.Style.Fill);
paint.TextSize = font.RealSize;
paint.TextAlign = Paint.Align.Left;
paint.Color = global::Android.Graphics.Color.White;
paint.AntiAlias = true;
font.RendererData = paint;
return(true);
}
public async Task TextDecorationsInitializesCorrectly()
{
var xplatTextDecorations = TextDecorations.Underline;
var labelHandler = new LabelStub()
{
TextDecorations = xplatTextDecorations
};
var values = await GetValueAsync(labelHandler, (handler) =>
{
return(new
{
ViewValue = labelHandler.TextDecorations,
PlatformViewValue = GetNativeTextDecorations(handler)
});
});
PaintFlags expectedValue = PaintFlags.UnderlineText;
Assert.Equal(xplatTextDecorations, values.ViewValue);
values.PlatformViewValue.AssertHasFlag(expectedValue);
}
public static void RemovePaintFlag(this TextView textView, PaintFlags flag)
{
textView.PaintFlags = textView.PaintFlags & ~flag;
}
public void DrawEllipse(Pen pen, float x, float y, float w, float h)
{
this.paint.Color = pen.Color.ToAColor();
this.paint.Flags = this.Flags;
this.paint.SetStyle(Paint.Style.Stroke);
this.paint.StrokeWidth = pen.Width;
using (RectF r = new RectangleF(x, y, w, h).ToRectF())
{
this.canvas.DrawOval(r, this.paint);
}
}
public static void AddPaintFlag(this TextView textView, PaintFlags flag)
{
textView.PaintFlags = textView.PaintFlags | flag;
}
public void FillRectangle(Brush brush, float x1, float y1, float w, float h)
{
this.paint.Color = brush.Color.ToAColor();
this.paint.Flags = this.Flags;
this.paint.SetStyle(Paint.Style.Fill);
this.canvas.DrawRect(x1, y1, x1 + w, y1 + h, this.paint);
}
private Graphics()
{
this.paint = new Paint();
this.Flags = PaintFlags.AntiAlias;
this.ownCanvas = false;
}
public void DrawImage(Bitmap bitmap, int x, int y)
{
this.paint.Flags = 0;
this.canvas.DrawBitmap(bitmap, x, y, this.paint);
}
public void FillEllipse(Brush brush, float x, float y, float w, float h)
{
this.paint.Color = brush.Color.ToAColor();
this.paint.Flags = this.Flags;
this.paint.SetStyle(Paint.Style.Fill);
using (RectF r = new RectangleF(x, y, w, h).ToRectF())
{
this.canvas.DrawOval(r, this.paint);
}
}
public void DrawString(string text, Font font, Brush brush, float x, float y)
{
this.paint.Color = brush.Color.ToAColor();
this.paint.Flags = PaintFlags.AntiAlias;
this.paint.TextSize = font.Size;
this.paint.SetTypeface(font.FontFamily.Typeface);
this.paint.SetStyle(Paint.Style.Fill);
using (var fm = this.paint.GetFontMetrics())
{
this.canvas.DrawText(text, x, y - (fm.Top + fm.Bottom), this.paint);
}
}
