Beispiel #1
0
        /// <summary>
        /// Add submenu icon
        /// </summary>
        protected override void OnPaintForeground(SKPaintSurfaceEventArgs e, Rectangle availableSpace)
        {
            Size actualSubMenuIconSize = new Size();

            if (ItemsSource != null && ItemsSource.Count > 0 && IsSubMenuIconVisible && string.IsNullOrEmpty(SubMenuIconAssemblyName) == false && string.IsNullOrEmpty(SubMenuIconResourceKey) == false)
            {
                if (m_subMenuIconSvg == null)
                {
                    m_subMenuIconSvg = SvgImage.GetSvgImage(SubMenuIconAssemblyName, SubMenuIconResourceKey);
                }

                Rectangle subMenuIconActualLocation = new Rectangle(
                    availableSpace.Width - _subMenuIconSize.Width - SubMenuIconMargin.Right,
                    (availableSpace.Height - _subMenuIconSize.Height) / 2,
                    _subMenuIconSize.Height,
                    _subMenuIconSize.Width);

                float skSubMenuIconX = (float)subMenuIconActualLocation.X * DeviceScale;
                float skSubMenuIconY = (float)subMenuIconActualLocation.Y * DeviceScale;

                SKMatrix subMenuIconMatrix   = new SKMatrix();
                SKPoint  subMenuIconPosition = new SKPoint();

                float scale = SvgImage.CalculateScale(m_subMenuIconSvg.Picture.CullRect.Size, SubMenuIconWidthRequest, SubMenuIconHeightRequest) * DeviceScale;

                subMenuIconPosition.X = (float)skSubMenuIconX + (float)((SubMenuIconWidthRequest - _subMenuIconSize.Width) / 2) * DeviceScale;
                subMenuIconPosition.Y = (float)skSubMenuIconY + (float)((SubMenuIconHeightRequest - _subMenuIconSize.Height) / 2) * DeviceScale;
                subMenuIconMatrix.SetScaleTranslate(scale, scale, subMenuIconPosition.X, subMenuIconPosition.Y);

                using (var paint = new SKPaint())
                {
                    Color color = GetActualSubMenuIconColor();

                    paint.ColorFilter = SKColorFilter.CreateBlendMode(color.ToSKColor(), SKBlendMode.SrcIn);
                    paint.Style       = SKPaintStyle.Fill;
                    paint.IsAntialias = true;
                    e.Surface.Canvas.DrawPicture(m_subMenuIconSvg.Picture, ref subMenuIconMatrix, paint);
                }

                actualSubMenuIconSize = _subMenuIconSize;
            }

            base.OnPaintForeground(e, new Rectangle(availableSpace.X + _checkBoxSize.Width,
                                                    availableSpace.Y,
                                                    availableSpace.Width - actualSubMenuIconSize.Width - _checkBoxSize.Width,
                                                    availableSpace.Height));
        }
Beispiel #2
0
        /// <summary>
        /// Measure icon size
        /// </summary>
        private Size MeasureSubMenuIcon(double widthConstraint, double heightConstraint)
        {
            if (SubMenuIconWidthRequest >= 0 && SubMenuIconHeightRequest >= 0)
            {
                return(new Size(SubMenuIconWidthRequest, SubMenuIconHeightRequest));
            }
            else
            {
                if (m_subMenuIconSvg == null)
                {
                    m_subMenuIconSvg = SvgImage.GetSvgImage(SubMenuIconAssemblyName, SubMenuIconResourceKey);
                }

                float scale = SvgImage.CalculateScale(m_subMenuIconSvg.Picture.CullRect.Size, IconWidthRequest, IconHeightRequest);

                return(new Size(m_subMenuIconSvg.Picture.CullRect.Width * scale, m_subMenuIconSvg.Picture.CullRect.Height * scale));
            }
        }
Beispiel #3
0
        /// <summary>
        /// Paint checkbox
        /// </summary>
        /// <param name="e"></param>
        protected override void OnPaintSelectionElement(SKPaintSurfaceEventArgs e)
        {
            if (_checkMarkSvg == null && string.IsNullOrEmpty(CheckMarkIconAssemblyName) == false && string.IsNullOrEmpty(CheckMarkIconResourceKey) == false)
            {
                _checkMarkSvg = SvgImage.GetSvgImage(CheckMarkIconAssemblyName, CheckMarkIconResourceKey);
            }

            Rectangle checkBoxAvailableLocation = new Rectangle();
            Rectangle availableSpace            = new Rectangle(EllipseDiameter, EllipseDiameter, Width, Height - Padding.VerticalThickness);

            if (CheckBoxLocation == HorizontalLocations.Left)
            {
                checkBoxAvailableLocation = availableSpace;
            }
            else
            {
                checkBoxAvailableLocation = new Rectangle(availableSpace.Width - CheckBoxWidthRequest - CheckBoxMargin.HorizontalThickness + EllipseDiameter, EllipseDiameter, availableSpace.Width, availableSpace.Height);
            }

            Rectangle checkBoxActualLocation = CheckBoxActualLocation(checkBoxAvailableLocation);

            float skCheckBoxBorderThickness = (float)CheckBoxBorderThickness * DeviceScale;
            float skCheckBoxX      = (float)checkBoxActualLocation.X * DeviceScale;
            float skCheckBoxY      = (float)checkBoxActualLocation.Y * DeviceScale;
            float skCheckBoxWidth  = (float)CheckBoxWidthRequest * DeviceScale;
            float skCheckBoxHeight = (float)CheckBoxHeightRequest * DeviceScale;
            float skCornerRadius   = (float)CheckBoxCornerRadius * DeviceScale;

            SKMatrix checkMarkMatrix   = new SKMatrix();
            SKPoint  checkMarkPosition = new SKPoint();

            Size checkMarkIconSize = new Size(CheckBoxWidthRequest - CheckMarkIconMargin.HorizontalThickness, CheckBoxHeightRequest - CheckMarkIconMargin.VerticalThickness);

            float scale = SvgImage.CalculateScale(_checkMarkSvg.Picture.CullRect.Size, checkMarkIconSize.Width, checkMarkIconSize.Height);

            Size actualCheckMarkIconSize = new Size(_checkMarkSvg.Picture.CullRect.Width * scale, _checkMarkSvg.Picture.CullRect.Height * scale);

            scale = scale * DeviceScale;

            checkMarkPosition.X = (float)skCheckBoxX + (float)((CheckBoxWidthRequest - actualCheckMarkIconSize.Width) / 2) * DeviceScale;
            checkMarkPosition.Y = (float)skCheckBoxY + (float)((CheckBoxHeightRequest - actualCheckMarkIconSize.Height) / 2) * DeviceScale;
            checkMarkMatrix.SetScaleTranslate(scale, scale, checkMarkPosition.X, checkMarkPosition.Y);

            SKRect checkBoxPaintRect = new SKRect(skCheckBoxX + skCheckBoxBorderThickness / 2,
                                                  skCheckBoxY + skCheckBoxBorderThickness / 2,
                                                  skCheckBoxX + skCheckBoxWidth - skCheckBoxBorderThickness / 2,
                                                  skCheckBoxY + skCheckBoxHeight - skCheckBoxBorderThickness / 2);

            if (EllipseDiameter > 0 && _toggledAnimationProcess > 0 && _toggledAnimationProcess < 1 && IsEllipseAnimationEnabled)
            {
                SKPaint ellipsePaint = new SKPaint()
                {
                    IsAntialias = true,
                    Style       = SKPaintStyle.Fill,
                };

                if (_toggledAnimationProcess <= 0.5)
                {
                    ellipsePaint.Color = EllipseColor.MultiplyAlpha(_toggledAnimationProcessWithoutEasing * 2).ToSKColor();
                }
                else
                {
                    ellipsePaint.Color = EllipseColor.MultiplyAlpha(1 - (_toggledAnimationProcessWithoutEasing - 0.5) * 2).ToSKColor();
                }

                e.Surface.Canvas.DrawCircle(new SKPoint(checkBoxPaintRect.MidX, checkBoxPaintRect.MidY), (float)(EllipseDiameter / 2) * DeviceScale, ellipsePaint);
            }

            Color backgroundColor = Color.Transparent;

            if (CheckBoxBackgroundColor != null && CheckBoxBackgroundColor != Color.Transparent && ToggledCheckBoxBackgroundColor != null && ToggledCheckBoxBackgroundColor != Color.Transparent)
            {
                backgroundColor = AnimationUtils.ColorTransform(_toggledAnimationProcess, CheckBoxBackgroundColor, ToggledCheckBoxBackgroundColor);
            }
            else if ((CheckBoxBackgroundColor == null || CheckBoxBackgroundColor == Color.Transparent) && ToggledCheckBoxBackgroundColor != null && ToggledCheckBoxBackgroundColor != Color.Transparent)
            {
                backgroundColor = ToggledCheckBoxBackgroundColor;
            }
            else
            {
                backgroundColor = CheckBoxBackgroundColor;
            }

            SKPaint checkBoxBackgroundPaint = new SKPaint
            {
                Style       = SKPaintStyle.Fill,
                IsAntialias = true,
                Color       = backgroundColor.ToSKColor(),
            };

            SKRect rect = new SKRect(
                skCheckBoxX + skCheckBoxBorderThickness,
                skCheckBoxY + skCheckBoxBorderThickness,
                skCheckBoxX + skCheckBoxWidth - skCheckBoxBorderThickness,
                skCheckBoxY + skCheckBoxHeight - skCheckBoxBorderThickness);

            e.Surface.Canvas.Save();

            SKRect r = SKRect.Create(rect.Left, rect.Top, rect.Width, rect.Height);

            if (_toggledAnimationProcess <= 0.75)
            {
                float v = (float)(_toggledAnimationProcess * (1 / 0.75));
                r.Inflate(-rect.Width * v / 2, -rect.Height * v / 2);
                e.Surface.Canvas.ClipRect(r, SKClipOperation.Difference);
            }

            e.Surface.Canvas.DrawRoundRect(checkBoxPaintRect, skCornerRadius, skCornerRadius, checkBoxBackgroundPaint);
            e.Surface.Canvas.Restore();

            SKPaint checkBoxBorderPaint = new SKPaint
            {
                Style       = SKPaintStyle.Stroke,
                IsAntialias = true,
                StrokeWidth = skCheckBoxBorderThickness,
                Color       = AnimationUtils.ColorTransform(_toggledAnimationProcess, CheckBoxBorderColor, ToggledCheckBoxBorderColor).ToSKColor(),
            };

            e.Surface.Canvas.DrawRoundRect(checkBoxPaintRect, skCornerRadius, skCornerRadius, checkBoxBorderPaint);

            using (var paint = new SKPaint())
            {
                Color color = Color.Transparent;

                if (_toggledAnimationProcess > 0.75)
                {
                    float v = (float)((_toggledAnimationProcess - 0.75) * (1 / 0.25));
                    color = AnimationUtils.ColorTransform(v, CheckMarkIconColor, ToggledCheckMarkIconColor);
                }

                if (color != Color.Transparent)
                {
                    paint.ColorFilter = SKColorFilter.CreateBlendMode(color.ToSKColor(), SKBlendMode.SrcIn);
                    paint.Style       = SKPaintStyle.Fill;
                    paint.IsAntialias = true;

                    e.Surface.Canvas.DrawPicture(_checkMarkSvg.Picture, ref checkMarkMatrix, paint);
                }
            }
        }