void IDocumentVisualizer.DrawDocument(Graphics g)
{
if (HasDocument)
{
IGraphics graphics = new GdiGraphics(g);
Document.Print(graphics, false, Style.CurrentStyle);
}
}
/// <exception cref="ArgumentNullException">
/// <paramref name="document"/> is null.
/// </exception>
public static void CopyAsImage(IPrintable document, bool selectedOnly)
{
if (document == null)
{
throw new ArgumentNullException("document");
}
RectangleF areaF = document.GetPrintingArea(true);
areaF.Offset(0.5F, 0.5F);
Rectangle area = Rectangle.FromLTRB((int)areaF.Left, (int)areaF.Top,
(int)Math.Ceiling(areaF.Right), (int)Math.Ceiling(areaF.Bottom));
using (Bitmap image = new Bitmap(area.Width, area.Height, PixelFormat.Format24bppRgb))
using (Graphics g = Graphics.FromImage(image))
{
// Set drawing parameters
g.SmoothingMode = SmoothingMode.HighQuality;
if (DiagramEditor.Settings.Default.UseClearTypeForImages)
{
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
}
else
{
g.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit;
}
g.TranslateTransform(-area.Left, -area.Top);
// Draw image
g.Clear(Style.CurrentStyle.BackgroundColor);
IGraphics graphics = new GdiGraphics(g);
document.Print(graphics, selectedOnly, Style.CurrentStyle);
try
{
System.Windows.Forms.Clipboard.SetImage(image);
}
catch
{
//UNDONE: exception handling of CopyAsImage()
}
}
}
private static void SaveAsImage(IPrintable document, string path,
ImageFormat format, bool selectedOnly, bool transparent)
{
const int Margin = 20;
RectangleF areaF = document.GetPrintingArea(selectedOnly);
areaF.Offset(0.5F, 0.5F);
Rectangle area = Rectangle.FromLTRB((int)areaF.Left, (int)areaF.Top,
(int)Math.Ceiling(areaF.Right), (int)Math.Ceiling(areaF.Bottom));
if (format == ImageFormat.Emf) // Save to metafile
{
Graphics metaG = control.CreateGraphics();
IntPtr hc = metaG.GetHdc();
Graphics g = null;
try
{
// Set drawing parameters
Metafile meta = new Metafile(path, hc);
g = Graphics.FromImage(meta);
g.SmoothingMode = SmoothingMode.HighQuality;
if (DiagramEditor.Settings.Default.UseClearTypeForImages)
{
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
}
else
{
g.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
}
g.TranslateTransform(-area.Left, -area.Top);
// Draw image
IGraphics graphics = new GdiGraphics(g);
document.Print(graphics, selectedOnly, Style.CurrentStyle);
meta.Dispose();
}
catch (Exception ex)
{
Debug.WriteLine($"{Strings.ErrorInSavingImage} {Strings.ErrorsReason} {ex.GetType()} {ex.Message}");
}
finally
{
metaG.ReleaseHdc();
metaG.Dispose();
if (g != null)
{
g.Dispose();
}
}
}
else // Save to rastered image
{
int width = area.Width + Margin * 2;
int height = area.Height + Margin * 2;
PixelFormat pixelFormat;
if (transparent)
{
pixelFormat = PixelFormat.Format32bppArgb;
}
else
{
pixelFormat = PixelFormat.Format24bppRgb;
}
using (Bitmap image = new Bitmap(width, height, pixelFormat))
using (Graphics g = Graphics.FromImage(image))
{
// Set drawing parameters
g.SmoothingMode = SmoothingMode.HighQuality;
if (DiagramEditor.Settings.Default.UseClearTypeForImages && !transparent)
{
g.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
}
else
{
g.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit;
}
g.TranslateTransform(Margin - area.Left, Margin - area.Top);
// Draw image
if (!transparent)
{
g.Clear(Style.CurrentStyle.BackgroundColor);
}
IGraphics graphics = new GdiGraphics(g);
document.Print(graphics, selectedOnly, Style.CurrentStyle);
try
{
image.Save(path, format);
}
catch (Exception ex)
{
Debug.WriteLine($"{Strings.ErrorInSavingImage} {Strings.ErrorsReason} {ex.GetType()} {ex.Message}");
}
}
}
}
