Example #1
0
        protected override void LoadExample()
        {
            // init layout
            m_Layout = new NStackLayout();

            // cells occupy the entire space of the available slots
            m_Layout.HorizontalContentPlacement = ContentPlacement.Fit;
            m_Layout.VerticalContentPlacement   = ContentPlacement.Fit;

            propertyGrid1.SelectedObject = m_Layout;

            view.BeginInit();
            view.Grid.Visible = false;
            view.GlobalVisibility.ShowPorts = false;
            view.ViewLayout = ViewLayout.Fit;

            // init document
            document.BeginInit();
            InitDocument();
            document.EndInit();

            // init form controls
            InitFormControls();

            // end view init
            view.EndInit();
        }
        NDrawingDocument CreateDocument(int bookId)
        {
            NDrawingDocument document = new NDrawingDocument();

            //	setup the document
            document.AutoBoundsPadding         = new Nevron.Diagram.NMargins(0f, 7f, 7f, 7f);
            document.Style.FillStyle           = new NColorFillStyle(Color.White);
            document.Style.TextStyle.FillStyle = new NColorFillStyle(Color.DarkGray);
            document.Style.TextStyle.StringFormatStyle.HorzAlign = HorzAlign.Left;
            document.Style.StrokeStyle = new NStrokeStyle(0, Color.White);
            NStandardFrameStyle frame = document.BackgroundStyle.FrameStyle as NStandardFrameStyle;

            frame.InnerBorderColor   = Color.Gray;
            document.MeasurementUnit = NGraphicsUnit.Pixel;

            //	set up the shape factories
            NBasicShapesFactory bookItemsFactory = new NBasicShapesFactory(document);

            bookItemsFactory.DefaultSize = new NSizeF(320, 200);

            NCustomToolsData.NBookEntry[] books = NCustomToolsData.CreateBooks();
            NCustomToolsData.NBookEntry   book  = null;
            int length = books.Length;

            for (int i = 0; i < length; i++)
            {
                if (books[i].Id == bookId)
                {
                    book = books[i];
                    break;
                }
            }
            if (bookId == -1 || book == null)
            {
                document.Style.StrokeStyle = new NStrokeStyle(1, Color.Red);
                document.ActiveLayer.AddChild(bookItemsFactory.CreateShape(BasicShapes.Pentagram));
                document.SizeToContent();
                return(document);
            }

            //	create a table layout, which will align te thumbnail and the text lines
            //	in two columns
            NTableLayout mainLayout = new NTableLayout();

            mainLayout.Direction                = LayoutDirection.LeftToRight;
            mainLayout.ConstrainMode            = CellConstrainMode.Ordinal;
            mainLayout.MaxOrdinal               = 2;
            mainLayout.VerticalContentPlacement = ContentPlacement.Near;

            //	create a stack layout, which will align the text lines in rows
            NStackLayout textLayout = new NStackLayout();

            textLayout.Direction = LayoutDirection.TopToBottom;
            textLayout.HorizontalContentPlacement = ContentPlacement.Near;
            textLayout.VerticalSpacing            = 13;

            //	create a stack layout, which will align the stars in 5 columns
            NStackLayout starsLayout = new NStackLayout();

            starsLayout.Direction = LayoutDirection.LeftToRight;
            starsLayout.VerticalContentPlacement = ContentPlacement.Center;
            starsLayout.HorizontalSpacing        = 1;

            NLayoutContext layoutContext = new NLayoutContext();

            layoutContext.GraphAdapter         = new NShapeGraphAdapter();
            layoutContext.BodyAdapter          = new NShapeBodyAdapter(document);
            layoutContext.BodyContainerAdapter = new NDrawingBodyContainerAdapter(document);

            //	create the shapes for the book image and text lines
            NShape bookImageShape = bookItemsFactory.CreateShape(BasicShapes.Rectangle);

            bookImageShape.Width  = 240f;
            bookImageShape.Height = 240f;
            NImageFillStyle fs1 = new NImageFillStyle(HttpContext.Current.Server.MapPath(@"~\Images\CustomTools\" + book.ImageFile));

            fs1.TextureMappingStyle.MapLayout = MapLayout.Centered;
            NStyle.SetFillStyle(bookImageShape, fs1);

            NShape bookTitleShape = bookItemsFactory.CreateShape(BasicShapes.Rectangle);

            bookTitleShape.Text   = book.Title;
            bookTitleShape.Width  = 160f;
            bookTitleShape.Height = 32f;

            NShape bookAuthorShape = bookItemsFactory.CreateShape(BasicShapes.Rectangle);

            bookAuthorShape.Text   = "by " + book.Author;
            bookAuthorShape.Width  = 160f;
            bookAuthorShape.Height = 32f;

            NShape bookPriceShape = bookItemsFactory.CreateShape(BasicShapes.Rectangle);

            bookPriceShape.Text   = "Price: $" + book.Price.ToString();
            bookPriceShape.Width  = 160f;
            bookPriceShape.Height = 32f;

            //	create the star shapes
            NNodeList starShapes = new NNodeList();

            for (int i = 0; i < 5; i++)
            {
                NShape star = bookItemsFactory.CreateShape(BasicShapes.Pentagram);
                star.Width  = 10f;
                star.Height = 10f;
                if (i < book.Rating)
                {
                    star.Style.FillStyle = new NColorFillStyle(Color.Orange);
                }
                else
                {
                    star.Style.FillStyle = new NColorFillStyle(Color.LightGray);
                }
                starShapes.Add(star);
            }

            //	prepare to layout
            NBatchGroup bgroup = new NBatchGroup(document);

            //	create the stars group
            NGroup starsGroup = new NGroup();

            // group the star shapes
            bgroup.Build(starShapes);
            bgroup.Group(null, false, out starsGroup);

            // collect the text shapes
            NNodeList textShapes = new NNodeList();

            textShapes.Add(bookTitleShape);
            textShapes.Add(bookAuthorShape);
            textShapes.Add(bookPriceShape);
            textShapes.Add(starsGroup);

            //	create the text group
            NGroup textGroup = new NGroup();

            // group the text shapes
            bgroup.Build(textShapes);
            bgroup.Group(null, false, out textGroup);

            // collect the main layout shapes
            NNodeList mainElements = new NNodeList();

            mainElements.Add(bookImageShape);
            mainElements.Add(textGroup);

            //	create the main group
            NGroup mainGroup = new NGroup();

            // group the main elements
            bgroup.Build(mainElements);
            bgroup.Group(null, false, out mainGroup);

            document.ActiveLayer.AddChild(mainGroup);

            // size all text shapes to text
            bookTitleShape.SizeToText(new NMarginsF(6f, 0f, 6f, 0f));
            bookAuthorShape.SizeToText(new NMarginsF(6f, 0f, 6f, 0f));
            bookPriceShape.SizeToText(new NMarginsF(6f, 0f, 6f, 0f));

            // layout the star shapes
            starsLayout.Layout(starShapes, layoutContext);
            starsGroup.UpdateModelBounds();

            // perform layout on the text
            textLayout.Layout(textShapes, layoutContext);
            textGroup.UpdateModelBounds();

            // layout all elements
            mainLayout.Layout(mainElements, layoutContext);
            mainGroup.UpdateModelBounds();

            // correct the text left padding
            bookTitleShape.Location  = new NPointF(bookTitleShape.Location.X - 6f, bookTitleShape.Location.Y);
            bookAuthorShape.Location = new NPointF(bookAuthorShape.Location.X - 6f, bookAuthorShape.Location.Y);
            bookPriceShape.Location  = new NPointF(bookPriceShape.Location.X - 6f, bookPriceShape.Location.Y);

            document.SizeToContent();
            return(document);
        }