public void ProcessEMF(byte[] emf)
{
try
{
_ms = new MemoryStream(emf);
_mf = new Metafile(_ms);
_bm = new Bitmap(1, 1);
g = Graphics.FromImage(_bm);
//XScale = Width / _mf.Width;
//YScale = Height/ _mf.Height;
m_delegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
g.EnumerateMetafile(_mf, new Point(0, 0), m_delegate);
}
finally
{
if (g != null)
g.Dispose();
if (_bm != null)
_bm.Dispose();
if (_ms != null)
{
_ms.Close();
_ms.Dispose();
}
}
}
// Method to draw the current emf memory stream
private void ReportDrawPage(Graphics g)
{
if (null == m_currentPageStream || 0 == m_currentPageStream.Length || null == m_metafile)
{
return;
}
lock (this)
{
// Set the metafile delegate.
int width = m_metafile.Width;
int height = m_metafile.Height;
m_delegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
// Draw in the rectangle
Point[] points = new Point[3];
Point destPoint = new Point(0, 0);
Point destPoint1 = new Point(width, 0);
Point destPoint2 = new Point(0, height);
points[0] = destPoint;
points[1] = destPoint1;
points[2] = destPoint2;
g.EnumerateMetafile(m_metafile, points, m_delegate);
// Clean up
m_delegate = null;
}
}
protected void SaveViaBitmap(PrintDocument document, PrintPageEventArgs e)
{
int width = e.PageBounds.Width;
int height = e.PageBounds.Height;
using (Bitmap bitmap = new Bitmap((int)(width * _Scale), (int)(height * _Scale)))
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.Clear(Color.White);
if (_Scale != 1)
{
graphics.ScaleTransform(_Scale, _Scale);
}
Point point = new Point(0, 0);
Graphics.EnumerateMetafileProc callback = new Graphics.EnumerateMetafileProc(PlayRecord);
graphics.EnumerateMetafile(_Metafile, point, callback);
if (_Scale == 1 || true)
{
Save(bitmap);
}
else
{
using (Bitmap bitmap2 = new Bitmap(width, height))
using (Graphics graphics2 = Graphics.FromImage(bitmap2))
{
graphics2.DrawImage(bitmap, 0, 0, width, height);
Save(bitmap2);
}
}
}
}
protected void Play()
{
// try
// {
m_succeeded = false;
Graphics.EnumerateMetafileProc metafileDelegate;
Point destPoint;
m_metafile = new Metafile(strFileName);
if (!m_metafile.GetMetafileHeader().IsWmfPlaceable())
{
m_metafile = RestorePlaceableHeader(m_metafile);
}
metafileDelegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
destPoint = new Point(20, 10);
Graphics graphics = wf.CreateGraphics();
graphics.EnumerateMetafile(m_metafile, destPoint, metafileDelegate);
// }
// catch (Exception e)
// {
// Console.WriteLine(e.Message);
// }
}
// Method to draw the current emf memory stream
private void ReportDrawPage(Graphics g)
{
if (null == m_currentPageStream || 0 == m_currentPageStream.Length || null == m_metafile)
{
return;
}
lock (this)
{
// Set the metafile delegate.
m_metafile.SelectActiveFrame(FrameDimension.Page, m_currentPrintingPage - 1);
int width = m_metafile.Width * 96 / 300;
int height = m_metafile.Height * 96 / 300;
m_delegate = MetafileCallback;
// Draw in the rectangle
Point[] points = new Point[3];
Point destPoint = new Point(0, 0);
Point destPoint1 = new Point(width, 0);
Point destPoint2 = new Point(0, height);
points[0] = destPoint;
points[1] = destPoint1;
points[2] = destPoint2;
g.EnumerateMetafile(m_metafile, points, m_delegate);
points = null;
// Clean up
m_delegate = null;
}
}
public void ProcessEMF(byte[] emf)
{
try
{
_ms = new MemoryStream(emf);
_mf = new Metafile(_ms);
_bm = new Bitmap(1, 1);
g = Graphics.FromImage(_bm);
//XScale = Width / _mf.Width;
//YScale = Height/ _mf.Height;
m_delegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
g.EnumerateMetafile(_mf, new Point(0, 0), m_delegate);
}
finally
{
if (g != null)
{
g.Dispose();
}
if (_bm != null)
{
_bm.Dispose();
}
if (_ms != null)
{
_ms.Close();
_ms.Dispose();
}
}
}
private void button1_Click(object sender, EventArgs e)
{
Graphics.EnumerateMetafileProc metafileDelegate = MetafileCallback;
metafile1 = new Metafile(@"F:\ProgrammingCases\GitHubProjects\1.emf");
// 遍历矢量图中的各个图元并有选择性的显示在 pictureBox1 中， 显示的矢量图的左上角点的位置为 destPoint
pictureBox1.CreateGraphics().EnumerateMetafile(metafile1, destPoint: new Point(0, 0), callback: metafileDelegate);
}
internal static partial int GdipEnumerateMetafileDestPointsI(
#if NET7_0_OR_GREATER
[MarshalUsing(typeof(HandleRefMarshaller))]
#endif
HandleRef graphics,
#if NET7_0_OR_GREATER
[MarshalUsing(typeof(HandleRefMarshaller))]
#endif
HandleRef metafile, Point *destPoints, int count, Graphics.EnumerateMetafileProc callback, IntPtr callbackdata,
#if NET7_0_OR_GREATER
[MarshalUsing(typeof(HandleRefMarshaller))]
#endif
HandleRef imageattributes);
private void EnumerateMetaFile_Click(object sender, System.EventArgs e)
{
Graphics g = this.CreateGraphics();
g.Clear(this.BackColor);
Metafile curMetafile = new Metafile(@"f:\mtfile.wmf");
Graphics.EnumerateMetafileProc enumMetaCB = new
Graphics.EnumerateMetafileProc(EnumMetaCB);
g.EnumerateMetafile(curMetafile, new Point(0, 0), enumMetaCB);
curMetafile.Dispose();
g.Dispose();
}
protected void Play()
{
try
{
m_succeeded = false;
Graphics.EnumerateMetafileProc metafileDelegate;
Point destPoint;
m_metafile = new Metafile(strFileName);
metafileDelegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
destPoint = new Point(20, 10);
Graphics graphics = wf.CreateGraphics();
graphics.EnumerateMetafile(m_metafile, destPoint, metafileDelegate);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
private void EnumerateMetaFile_Click(object sender,
System.EventArgs e)
{
// Create a Graphics object
Graphics g = this.CreateGraphics();
g.Clear(this.BackColor);
// Create a Metafile object from a file
Metafile curMetafile = new Metafile("mtfile.wmf");
// Set EnumerateMetafileProc property
Graphics.EnumerateMetafileProc enumMetaCB =
new Graphics.EnumerateMetafileProc(EnumMetaCB);
// Enumerate metafile
g.EnumerateMetafile(curMetafile,
new Point(0, 0), enumMetaCB);
// Dispose
curMetafile.Dispose();
g.Dispose();
}
/// <summary>
///Method to draw the current emf memory stream .
/// </summary>
/// <param name="g">The g.</param>
private void ReportDrawPage(Graphics g)
{
if (null == this.currentPageStream || 0 == this.currentPageStream.Length || null == this.metaFile)
{
return;
}
lock (this)
{
// Set the metafile delegate.
this.metaFileProcDelegate = new Graphics.EnumerateMetafileProc(this.MetafileCallback);
// Draw in the rectangle
Point destPoint = new Point(0, 0);
g.EnumerateMetafile(this.metaFile, destPoint, this.metaFileProcDelegate);
// Clean up
this.metaFileProcDelegate = null;
}
}
public void EnumerateMetafile(Imaging.Metafile metafile, Point destPoint, Graphics.EnumerateMetafileProc callback)
{
throw new NotImplementedException();
}
// Method to draw the current emf memory stream
private void ReportDrawPage(Graphics graphics)
{
if (m_currentPageStream == null || m_currentPageStream.Length == 0 || m_metafile == null)
return;
// Set metafile delegate.
m_delegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
// Draw in the rectangle
Point destPoint = new Point(0, 0);
graphics.EnumerateMetafile(m_metafile, destPoint, m_delegate);
// Clean up
m_delegate = null;
}
public void EnumerateMetafile(System.Drawing.Imaging.Metafile metafile, RectangleF destRect, RectangleF srcRect, GraphicsUnit unit, Graphics.EnumerateMetafileProc callback, IntPtr callbackData, System.Drawing.Imaging.ImageAttributes imageAttr)
{
throw new NotImplementedException();
}
public void EnumerateMetafile(System.Drawing.Imaging.Metafile metafile, Rectangle destRect, Rectangle srcRect, GraphicsUnit srcUnit, Graphics.EnumerateMetafileProc callback, IntPtr callbackData)
{
throw new NotImplementedException();
}
internal static extern int GdipEnumerateMetafileSrcRectDestRectI(HandleRef graphics, HandleRef metafile, ref Rectangle destRect, ref Rectangle srcRect, GraphicsUnit pageUnit, Graphics.EnumerateMetafileProc callback, HandleRef callbackdata, HandleRef imageattributes);
private void Construct()
{
//replaceBrushCallback = new Graphics.EnumerateMetafileProc(ReplaceBrushCallbackProc);
findReplaceColorCallback = new Graphics.EnumerateMetafileProc(FindReplaceColorCallbackProc);
FindRemapColor();
}
internal static extern int GdipEnumerateMetafileSrcRectDestPointsI(HandleRef graphics, HandleRef metafile, Point *destPoints, int count, ref Rectangle srcRect, GraphicsUnit pageUnit, Graphics.EnumerateMetafileProc callback, IntPtr callbackdata, HandleRef imageattributes);
internal static extern int GdipEnumerateMetafileDestRectI(HandleRef graphics, HandleRef metafile, ref Rectangle destRect, Graphics.EnumerateMetafileProc callback, IntPtr callbackdata, HandleRef imageattributes);
// Method to draw the current emf memory stream
private void ReportDrawPage(Graphics g)
{
if (null == m_currentPageStream || 0 == m_currentPageStream.Length || null == m_metafile)
return;
lock (this)
{
// Set the metafile delegate.
int width = m_metafile.Width;
int height = m_metafile.Height;
m_delegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
// Draw in the rectangle
Point[] points = new Point[3];
Point destPoint = new Point(0, 0);
Point destPoint1 = new Point(width, 0);
Point destPoint2 = new Point(0, height);
points[0] = destPoint;
points[1] = destPoint1;
points[2] = destPoint2;
g.EnumerateMetafile(m_metafile, points, m_delegate);
// Clean up
m_delegate = null;
}
}
/// <summary>
/// 打印事件
/// </summary>
protected override void doc_PrintPage(object sender, PrintPageEventArgs e)
{
if (printIndex == 2)
{
return;
}
_baseDoc = curDoublePrinters[printIndex].BaseDocument;
if (_baseDoc.PagerSetting.AllowPage && _baseDoc.PagerSetting.PagerDesc.Count > 0)
{
_baseDoc.PageIndexChanged(_baseDoc.PagerSetting.PagerDesc[_pageIndex].PageIndex,
_baseDoc.PagerSetting.PagerDesc[_pageIndex].IsMain,
_baseDoc.DataSource);
}
_printMetafile = GetPageMetafile();
// 调整边距
Rectangle rect = new Rectangle(0, 0, _printMetafile.Width, _printMetafile.Height);
double widthZoom = 1;
double heightZoom = 1;
double widthSize = (e.MarginBounds.Width);
double heightSize = (e.MarginBounds.Height);
// 宽度缩放
if (widthSize < rect.Width)
{
widthZoom = widthSize / rect.Width;
}
// 纵轴缩小
if (heightSize < rect.Height)
{
heightZoom = heightSize / rect.Height;
}
double zoom = (widthZoom < heightZoom) ? widthZoom : heightZoom;
Rectangle zoomRect = new Rectangle(rect.X, rect.Y, (int)(rect.Width * zoom), (int)(rect.Height * zoom));
MemoryStream mStream = new MemoryStream();
Graphics tempGraphics = _baseDoc.CreateGraphics();
IntPtr ipHdctemp = tempGraphics.GetHdc();
Metafile mf = new Metafile(mStream, ipHdctemp);
tempGraphics.ReleaseHdc(ipHdctemp);
tempGraphics.Dispose();
Graphics gMf = Graphics.FromImage(mf);
gMf.DrawImage(_printMetafile, zoomRect);
gMf.Save();
gMf.Dispose();
_printMetafile = mf;
metafileDelegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
// 开始正式打印
this.PrintPage(_printMetafile, e, zoomRect.Width, zoomRect.Height);
metafileDelegate = null;
_pageIndex++;
if (_pageFromHeight)
{
Rectangle r = GetPrintRect();
if ((_pageIndex) * _pagePrintHeight < r.Height)
{
e.HasMorePages = true;
}
}
else
{
if (printIndex == 0)
{
e.HasMorePages = true;
}
if (_baseDoc.PagerSetting.AllowPage && _pageIndex < _baseDoc.PagerSetting.TotalPageCount)
{
e.HasMorePages = true;
}
else
{
_pageIndex = 0;
printIndex++;
}
}
}
public void EnumerateMetafile(System.Drawing.Imaging.Metafile metafile, PointF[] destPoints, RectangleF srcRect, GraphicsUnit srcUnit, Graphics.EnumerateMetafileProc callback)
{
throw new NotImplementedException();
}
protected virtual void doc_PrintPage(object sender, PrintPageEventArgs e)
{
//如果允许分页,则打印每一页,否则则打印当前页
if (_baseDoc.PagerSetting.AllowPage)
{
_baseDoc.PageIndexChanged(_baseDoc.PagerSetting.PagerDesc[_pageIndex].PageIndex,
_baseDoc.PagerSetting.PagerDesc[_pageIndex].IsMain,
_baseDoc.DataSource);
}
//创建 metafile
_printMetafile = GetPageMetafile();
//_printMetafile.Save(@"D:\printMetafile0.emf");
//调整边距
Rectangle rect = new Rectangle(0, 0, _printMetafile.Width, _printMetafile.Height);
double widthZoom = 1;
double heightZoom = 1;
double widthSize = (e.MarginBounds.Width);
double heightSize = (e.MarginBounds.Height);
if (widthSize < rect.Width)
{
widthZoom = widthSize / rect.Width;
}
//纵轴缩小
if (heightSize < rect.Height)
{
heightZoom = heightSize / rect.Height;
}
double zoom = (widthZoom < heightZoom) ? widthZoom : heightZoom;
Rectangle zoomRect = new Rectangle(rect.X, rect.Y, (int)(rect.Width * zoom), (int)(rect.Height * zoom));
MemoryStream mStream = new MemoryStream();
Graphics ggggg = _baseDoc.CreateGraphics();
IntPtr ipHdctemp = ggggg.GetHdc();
Metafile mf = new Metafile(mStream, ipHdctemp);
ggggg.ReleaseHdc(ipHdctemp);
ggggg.Dispose();
Graphics gMf = Graphics.FromImage(mf);
gMf.DrawImage(_printMetafile, zoomRect);
gMf.Save();
gMf.Dispose();
_printMetafile = mf;
//_printMetafile.Save(@"D:\printMetafile1.emf");
metafileDelegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
//开始正式打印
PrintPage(_printMetafile, e, zoomRect.Width, zoomRect.Height);
metafileDelegate = null;
_pageIndex++;
if (_pageFromHeight)
{
Rectangle r = GetPrintRect();
if ((_pageIndex) * _pagePrintHeight < r.Height)
{
e.HasMorePages = true;
}
}
else
{
if (_baseDoc.PagerSetting.AllowPage && _pageIndex < _baseDoc.PagerSetting.TotalPageCount)
{
e.HasMorePages = true;
}
else
{
_pageIndex = 0;
}
}
}
internal static extern int GdipEnumerateMetafileDestPointI(HandleRef graphics, HandleRef metafile, ref Point destPoint, Graphics.EnumerateMetafileProc callback, HandleRef callbackdata, HandleRef imageattributes);
internal static partial int GdipEnumerateMetafileSrcRectDestRectI(
#if NET7_0_OR_GREATER
[MarshalUsing(typeof(HandleRefMarshaller))]
#endif
HandleRef graphics,
#if NET7_0_OR_GREATER
[MarshalUsing(typeof(HandleRefMarshaller))]
#endif
HandleRef metafile, ref Rectangle destRect, ref Rectangle srcRect, GraphicsUnit pageUnit, Graphics.EnumerateMetafileProc callback, IntPtr callbackdata,
#if NET7_0_OR_GREATER
[MarshalUsing(typeof(HandleRefMarshaller))]
#endif
HandleRef imageattributes);
public void EnumerateMetafile(System.Drawing.Imaging.Metafile metafile, RectangleF destRect, Graphics.EnumerateMetafileProc callback)
{
throw new NotImplementedException();
}
internal static extern int GdipEnumerateMetafileDestPointsI(HandleRef graphics, HandleRef metafile, Point *destPoints, int count, Graphics.EnumerateMetafileProc callback, IntPtr callbackdata, HandleRef imageattributes);
public void EnumerateMetafile(System.Drawing.Imaging.Metafile metafile, Point destPoint, Graphics.EnumerateMetafileProc callback, IntPtr callbackData)
{
throw new NotImplementedException();
}
public Form1()
{
metafile1 = new Metafile(@"C:\Test.wmf");
metafileDelegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
destPoint = new Point(20, 10);
}
public void EnumerateMetafile(System.Drawing.Imaging.Metafile metafile, PointF[] destPoints, Graphics.EnumerateMetafileProc callback, IntPtr callbackData, System.Drawing.Imaging.ImageAttributes imageAttr)
{
throw new NotImplementedException();
}
