ComponentFactory.Krypton.Toolkit.RenderStandard.DrawBack C# (CSharp) Method

        public override IDisposable DrawBack(RenderContext context,
									         Rectangle rect,
									         GraphicsPath path,
									         IPaletteBack palette,
									         VisualOrientation orientation,
									         PaletteState state,
                                             IDisposable memento)
        {
            Debug.Assert(context != null);
            Debug.Assert(path != null);
            Debug.Assert(palette != null);

            // Validate parameter references
            if (context == null) throw new ArgumentNullException("context");
            if (palette == null) throw new ArgumentNullException("palette");

            Debug.Assert(context.Control != null);
            Debug.Assert(!context.Control.IsDisposed);

            // Is there anything to actually draw?
            if ((rect.Width > 0) && (rect.Height > 0))
            {
                // We want to draw using anti aliasing for a nice smooth effect
                using (GraphicsHint smooth = new GraphicsHint(context.Graphics, palette.GetBackGraphicsHint(state)))
                {
                    // Cache commonly used values
                    Image backImage = palette.GetBackImage(state);
                    PaletteImageStyle backImageStyle = palette.GetBackImageStyle(state);
                    PaletteColorStyle backColorStyle = palette.GetBackColorStyle(state);
                    Color backColor1 = palette.GetBackColor1(state);
                    Color backColor2 = palette.GetBackColor2(state);
                    float backColorAngle = palette.GetBackColorAngle(state);

                    // Get the rectangle to use when dealing with gradients
                    Rectangle gradientRect = context.GetAlignedRectangle(palette.GetBackColorAlign(state), rect);

                    switch (backColorStyle)
                    {
                        case PaletteColorStyle.GlassSimpleFull:
                            memento = RenderGlassHelpers.DrawBackGlassSimpleFull(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassNormalFull:
                            memento = RenderGlassHelpers.DrawBackGlassNormalFull(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassTrackingFull:
                            memento = RenderGlassHelpers.DrawBackGlassTrackingFull(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassPressedFull:
                            memento = RenderGlassHelpers.DrawBackGlassPressedFull(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCheckedFull:
                            memento = RenderGlassHelpers.DrawBackGlassCheckedFull(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCheckedTrackingFull:
                            memento = RenderGlassHelpers.DrawBackGlassCheckedTrackingFull(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassNormalStump:
                            memento = RenderGlassHelpers.DrawBackGlassNormalStump(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassTrackingStump:
                            memento = RenderGlassHelpers.DrawBackGlassTrackingStump(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassPressedStump:
                            memento = RenderGlassHelpers.DrawBackGlassPressedStump(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCheckedStump:
                            memento = RenderGlassHelpers.DrawBackGlassCheckedStump(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCheckedTrackingStump:
                            memento = RenderGlassHelpers.DrawBackGlassCheckedTrackingStump(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassThreeEdge:
                            memento = RenderGlassHelpers.DrawBackGlassThreeEdge(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassNormalSimple:
                            memento = RenderGlassHelpers.DrawBackGlassNormalSimple(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassTrackingSimple:
                            memento = RenderGlassHelpers.DrawBackGlassTrackingSimple(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassPressedSimple:
                            memento = RenderGlassHelpers.DrawBackGlassPressedSimple(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCheckedSimple:
                            memento = RenderGlassHelpers.DrawBackGlassCheckedSimple(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCheckedTrackingSimple:
                            memento = RenderGlassHelpers.DrawBackGlassCheckedTrackingSimple(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassCenter:
                            memento = RenderGlassHelpers.DrawBackGlassCenter(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassBottom:
                            memento = RenderGlassHelpers.DrawBackGlassBottom(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.GlassFade:
                            memento = RenderGlassHelpers.DrawBackGlassFade(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.ExpertTracking:
                            memento = RenderExpertHelpers.DrawBackExpertTracking(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.ExpertPressed:
                            memento = RenderExpertHelpers.DrawBackExpertPressed(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.ExpertChecked:
                            memento = RenderExpertHelpers.DrawBackExpertChecked(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.ExpertCheckedTracking:
                            memento = RenderExpertHelpers.DrawBackExpertCheckedTracking(context, rect, backColor1, backColor2, orientation, path, memento);
                            break;
                        case PaletteColorStyle.ExpertSquareHighlight:
                            memento = RenderExpertHelpers.DrawBackExpertSquareHighlight(context, rect, backColor1, backColor2, orientation, path, memento, false);
                            break;
                        case PaletteColorStyle.ExpertSquareHighlight2:
                            memento = RenderExpertHelpers.DrawBackExpertSquareHighlight(context, rect, backColor1, backColor2, orientation, path, memento, true);
                            break;
                        case PaletteColorStyle.SolidInside:
                            DrawBackSolidInside(context, gradientRect, backColor1, backColor2, path);
                            break;
                        case PaletteColorStyle.SolidLeftLine:
                        case PaletteColorStyle.SolidRightLine:
                        case PaletteColorStyle.SolidTopLine:
                        case PaletteColorStyle.SolidBottomLine:
                        case PaletteColorStyle.SolidAllLine:
                            DrawBackSolidLine(context, rect, backColor1, backColor2, backColorStyle, path);
                            break;
                        case PaletteColorStyle.OneNote:
                            DrawBackOneNote(context, gradientRect, backColor1, backColor2,
                                            backColorStyle, backColorAngle, orientation, path);
                            break;
                        case PaletteColorStyle.RoundedTopLeftWhite:
                            DrawBackRoundedTopLeftWhite(context, rect, gradientRect, backColor1, backColor2,
                                                        backColorStyle, backColorAngle, orientation, path);
                            break;
                        case PaletteColorStyle.RoundedTopLight:
                            DrawBackRoundedTopLight(context, rect, gradientRect, backColor1, backColor2,
                                                    backColorStyle, backColorAngle, orientation, path);
                            break;
                        case PaletteColorStyle.Rounding4:
                            DrawBackRounded4(context, rect, gradientRect, backColor1, backColor2,
                                             backColorStyle, backColorAngle, orientation, path);
                            break;
                        case PaletteColorStyle.Rounding5:
                            DrawBackRounding5(context, rect, gradientRect, backColor1, backColor2,
                                                  backColorStyle, backColorAngle, orientation, path);
                            break;
                        case PaletteColorStyle.LinearShadow:
                            DrawBackLinearShadow(context, rect, gradientRect, backColor1, backColor2,
                                                 backColorStyle, backColorAngle, orientation, path);
                            break;
                        default:
                            // Use standard helper routine to create appropriate color brush
                            using (Brush backBrush = CreateColorBrush(gradientRect, backColor1, backColor2,
                                                                      backColorStyle, backColorAngle, orientation))
                            {
                                context.Graphics.FillPath(backBrush, path);
                            }
                            break;
                    }

                    // Do we need to draw the image?
                    if (ShouldDrawImage(backImage))
                    {
                        // Get the rectangle to use when dealing with gradients
                        Rectangle imageRect = context.GetAlignedRectangle(palette.GetBackImageAlign(state), rect);

                        // Use standard helper routine to create appropriate image brush
                        using (Brush backBrush = CreateImageBrush(imageRect, backImage, backImageStyle))
                            context.Graphics.FillPath(backBrush, path);
                    }
                }
            }

            return memento;
        }