Inheritance: XSDDiagram.Rendering.DiagramRenderer
Esempio n. 1
0
        public bool Export(Stream stream, string extension, Graphics referenceGraphics,
            DiagramAlertHandler alerteDelegate, IDictionary<string, object> specificRendererParameters)
        {
            bool result = false;

            if (extension.Equals(".emf", StringComparison.OrdinalIgnoreCase))
            {
                float scaleSave = _diagram.Scale;
                try
                {
                    _diagram.Scale = 1.0f;
                    _diagram.Layout(referenceGraphics);

                    IntPtr hdc = referenceGraphics.GetHdc();
                    Metafile metafile      = new Metafile(stream, hdc);
                    Graphics graphics      = Graphics.FromImage(metafile);
                    graphics.SmoothingMode = SmoothingMode.HighQuality;
                    _diagram.Layout(graphics);
                    DiagramGdiRenderer.Draw(_diagram, graphics);
                    referenceGraphics.ReleaseHdc(hdc);
                    metafile.Dispose();
                    graphics.Dispose();

                    result = true;
                }
                finally
                {
                    _diagram.Scale = scaleSave;
                    _diagram.Layout(referenceGraphics);
                }
            }
            else if (extension.Equals(".png", StringComparison.OrdinalIgnoreCase) ||
                extension.Equals(".jpg", StringComparison.OrdinalIgnoreCase)      ||
                extension.Equals(".jpeg", StringComparison.OrdinalIgnoreCase))
            {
                Rectangle bbox = _diagram.ScaleRectangle(_diagram.BoundingBox);
                bool bypassAlert = true;
                if (alerteDelegate != null && (bbox.Width > 10000 || bbox.Height > 10000))
                    bypassAlert = alerteDelegate("Huge image generation",
                        String.Format("Do you agree to generate a {0}x{1} image?", bbox.Width, bbox.Height));
                if (bypassAlert)
                {
                    Bitmap bitmap = new Bitmap(bbox.Width, bbox.Height);
                    Graphics graphics = Graphics.FromImage(bitmap);
                    graphics.FillRectangle(Brushes.White, 0, 0, bbox.Width, bbox.Height);
                    DiagramGdiRenderer.Draw(_diagram, graphics);
                    if (extension.CompareTo(".png") == 0)
                        bitmap.Save(stream, ImageFormat.Png);
                    else
                        bitmap.Save(stream, ImageFormat.Jpeg);

                    result = true;
                }
            }
            else if (extension.CompareTo(".txt") == 0 || extension.CompareTo(".csv") == 0)
            {
                float scaleSave = _diagram.Scale;
                try
                {
                    _diagram.Scale = 1.0f;
                    _diagram.Layout(referenceGraphics);
                    using (StreamWriter sw = new StreamWriter(stream))
                    {
                        using (DiagramTxtRenderer renderer = new DiagramTxtRenderer(sw))
                        {
                            renderer.IsCSV = extension.CompareTo(".csv") == 0;
                            IDictionary<string, object> parameters = specificRendererParameters as IDictionary<string, object>;
                            object o;
                            if (parameters != null && parameters.TryGetValue("TextOutputFields", out o))
                                renderer.TextOutputFields = o as IList<string>;
                            renderer.Render(_diagram);
                        }

                        sw.Close();
                    }
                    result = true;
                }
                finally
                {
                    _diagram.Scale = scaleSave;
                    _diagram.Layout(referenceGraphics);
                }
            }
            else //if (extension.CompareTo(".svg") == 0)
            {
                float scaleSave = _diagram.Scale;
                try
                {
                    _diagram.Scale = 1.0f;
                    _diagram.Layout(referenceGraphics);
                    using (StreamWriter streamWriter = new StreamWriter(stream))
                    {
                        using (DiagramSvgRenderer renderer = new DiagramSvgRenderer(streamWriter, referenceGraphics))
                        {
                            renderer.Render(_diagram);
                        }

                        streamWriter.Close();
                    }
                    result = true;
                }
                finally
                {
                    _diagram.Scale = scaleSave;
                    _diagram.Layout(referenceGraphics);
                }
            }
            return result;
        }
Esempio n. 2
0
        public bool Export(Stream stream, string extension, Graphics referenceGraphics,
                           DiagramAlertHandler alerteDelegate, IDictionary <string, object> specificRendererParameters)
        {
            bool result = false;

            if (extension.Equals(".emf", StringComparison.OrdinalIgnoreCase))
            {
                float scaleSave = _diagram.Scale;
                try
                {
                    _diagram.Scale = 1.0f;
                    _diagram.Layout(referenceGraphics);

                    IntPtr   hdc      = referenceGraphics.GetHdc();
                    Metafile metafile = new Metafile(stream, hdc);
                    Graphics graphics = Graphics.FromImage(metafile);
                    graphics.SmoothingMode = SmoothingMode.HighQuality;
                    _diagram.Layout(graphics);
                    DiagramGdiRenderer.Draw(_diagram, graphics);
                    referenceGraphics.ReleaseHdc(hdc);
                    metafile.Dispose();
                    graphics.Dispose();

                    result = true;
                }
                finally
                {
                    _diagram.Scale = scaleSave;
                    _diagram.Layout(referenceGraphics);
                }
            }
            else if (extension.Equals(".png", StringComparison.OrdinalIgnoreCase) ||
                     extension.Equals(".jpg", StringComparison.OrdinalIgnoreCase) ||
                     extension.Equals(".jpeg", StringComparison.OrdinalIgnoreCase))
            {
                Rectangle bbox        = _diagram.ScaleRectangle(_diagram.BoundingBox);
                bool      bypassAlert = true;
                if (alerteDelegate != null && (bbox.Width > 10000 || bbox.Height > 10000))
                {
                    bypassAlert = alerteDelegate("Huge image generation",
                                                 String.Format("Do you agree to generate a {0}x{1} image?", bbox.Width, bbox.Height));
                }
                if (bypassAlert)
                {
                    Bitmap   bitmap   = new Bitmap(bbox.Width, bbox.Height);
                    Graphics graphics = Graphics.FromImage(bitmap);
                    graphics.FillRectangle(Brushes.White, 0, 0, bbox.Width, bbox.Height);
                    DiagramGdiRenderer.Draw(_diagram, graphics);
                    if (extension.CompareTo(".png") == 0)
                    {
                        bitmap.Save(stream, ImageFormat.Png);
                    }
                    else
                    {
                        bitmap.Save(stream, ImageFormat.Jpeg);
                    }

                    result = true;
                }
            }
            else if (extension.CompareTo(".txt") == 0 || extension.CompareTo(".csv") == 0)
            {
                float scaleSave = _diagram.Scale;
                try
                {
                    _diagram.Scale = 1.0f;
                    _diagram.Layout(referenceGraphics);
                    using (StreamWriter sw = new StreamWriter(stream))
                    {
                        using (DiagramTxtRenderer renderer = new DiagramTxtRenderer(sw))
                        {
                            renderer.IsCSV = extension.CompareTo(".csv") == 0;
                            IDictionary <string, object> parameters = specificRendererParameters as IDictionary <string, object>;
                            object o;
                            if (parameters != null)
                            {
                                if (parameters.TryGetValue("TextOutputFields", out o))
                                {
                                    renderer.TextOutputFields = o as IList <string>;
                                }
                                if (parameters.TryGetValue("DisplayAttributes", out o) && o is bool)
                                {
                                    renderer.DisplayAttributes = (bool)o;
                                }
                                if (parameters.TryGetValue("Schema", out o))
                                {
                                    renderer.Schema = o as Schema;
                                }
                            }
                            renderer.Render(_diagram);
                        }

                        sw.Close();
                    }
                    result = true;
                }
                finally
                {
                    _diagram.Scale = scaleSave;
                    _diagram.Layout(referenceGraphics);
                }
            }
            else //if (extension.CompareTo(".svg") == 0)
            {
                float scaleSave = _diagram.Scale;
                try
                {
                    _diagram.Scale = 1.0f;
                    _diagram.Layout(referenceGraphics);
                    using (StreamWriter streamWriter = new StreamWriter(stream))
                    {
                        using (DiagramSvgRenderer renderer = new DiagramSvgRenderer(streamWriter, referenceGraphics))
                        {
                            renderer.Render(_diagram);
                        }

                        streamWriter.Close();
                    }
                    result = true;
                }
                finally
                {
                    _diagram.Scale = scaleSave;
                    _diagram.Layout(referenceGraphics);
                }
            }
            return(result);
        }