인쇄 기능 을 지원 하 는 ListView 클래스
23292 단어 F#
http://www.chinaaspx.com/comm/dotnetbbs/Showtopic.aspx?Forum_ID=6&Id=156821
그러나 사용 할 때 인쇄 할 때 첫 페이지 와 꼬 릿 말 이 나 왔 지만 표 자 체 는 나 오지 않 았 다.
추적 을 통 해 수정 코드 는 다음 과 같 습 니 다.
/// <summary>
/// ListView 。
/// </summary>
public class PrintListView : ListView
{
/// <summary>
/// ， true
/// </summary>
private bool m_bIsPreview;
/// <summary>
/// ， true
/// </summary>
private bool m_bIsAlwaysPrintHeader;
/// <summary>
///
/// </summary>
private string m_sPrintHeaderString;
/// <summary>
///
/// </summary>
private Font m_oHeaderFont;
/// <summary>
///
/// </summary>
private Font m_oBodyFont;
/// <summary>
///
/// </summary>
private Font m_oTailFont;
/// <summary>
/// ColumnHeader ，
/// </summary>
private Font m_oColumnHeaderFont;
/// <summary>
///
/// </summary>
private PrintDocument m_oPrintDoc;
/// <summary>
///
/// </summary>
private int m_nLineSpace;
private int m_nPrintWidth; //
private int m_nPrintHeight; //
private int m_nPageCount; //
private int m_nCurPrintPage; //
private int m_nTotalPage; //
private int m_nFromPage; //
private int m_nCurPrintItem; //
private Rectangle m_oHeaderRect; //
private Rectangle m_oBodyRect; //
private Rectangle m_oTailRect; //
private Brush defaultBrush;
private Pen defaultPen;
/// <summary>
///
/// </summary>
public bool IsPreview
{
get { return m_bIsPreview; }
set { m_bIsPreview = value; }
}
/// <summary>
///
/// </summary>
public bool IsAlwaysPrintHeader
{
get { return m_bIsAlwaysPrintHeader; }
set { m_bIsAlwaysPrintHeader = value; }
}
/// <summary>
///
/// </summary>
public string PrintHeaderString
{
get { return m_sPrintHeaderString; }
set { if (value != null) m_sPrintHeaderString = value; }
}
/// <summary>
///
/// </summary>
public Font HeaderFont
{
set { m_oHeaderFont = value; }
get { return m_oHeaderFont; }
}
/// <summary>
///
/// Bold true ， Exception
/// </summary>
public Font BodyFont
{
set
{
if (value == null)
return;
if (value.Bold == true)
{
throw new Exception(" [ ] .");
}
else
{
m_oBodyFont = value;
}
}
get { return m_oBodyFont; }
}
/// <summary>
///
/// </summary>
public Font TailFont
{
set { m_oTailFont = value; }
get { return m_oTailFont; }
}
/// <summary>
///
/// </summary>
public int LineSpace
{
get { return m_nLineSpace; }
set
{
if (value < 0)
{
m_nLineSpace = 0;
}
m_nLineSpace = value;
}
}
/// <summary>
/// ，
/// </summary>
public PrintListView()
{
m_bIsPreview = true;
m_bIsAlwaysPrintHeader = true;
m_sPrintHeaderString = "";
m_oHeaderFont = null;
m_oTailFont = null;
m_oBodyFont = null;
m_oColumnHeaderFont = null;
m_oPrintDoc = null;
m_nPrintWidth = 0;
m_nPrintHeight = 0;
m_nPageCount = 0;
m_nCurPrintPage = 1;
m_nFromPage = 1;
m_nLineSpace = 0;
m_nCurPrintItem = 0;
defaultBrush = Brushes.Black;
defaultPen = new Pen(defaultBrush, 1);
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private void InitPrintDocument()
{
m_oPrintDoc = new PrintDocument();
m_oPrintDoc.DocumentName = m_sPrintHeaderString;
if (m_oPrintDoc.PrinterSettings.PrinterName == "<no default printer>")
{
throw new Exception(" .");
}
else
{
m_oPrintDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_oPrintDoc.BeginPrint += new PrintEventHandler(BeginPrint);
m_oPrintDoc.EndPrint += new PrintEventHandler(EndPrint);
}
/* */
if (m_oHeaderFont == null)
{
m_oHeaderFont = new Font(" _GB2312", 16, FontStyle.Bold, GraphicsUnit.World);
}
if (m_oBodyFont == null)
{
m_oBodyFont = new Font(" _GB2312", 14, FontStyle.Regular, GraphicsUnit.World);
}
m_oColumnHeaderFont = new Font(m_oBodyFont, FontStyle.Bold);
if (m_oTailFont == null)
{
m_oTailFont = new Font(" _GB2312", 12, FontStyle.Regular, GraphicsUnit.World);
}
}
/// <summary>
///
/// </summary>
private bool InitPrintPage(out Margins margins)
{
margins = null;
/* listview */
Graphics g = this.CreateGraphics();
float x = g.DpiX;
g.Dispose();
/* */
PageSetupDialog ps = new PageSetupDialog();
ps.Document = m_oPrintDoc;
if (ps.ShowDialog() == DialogResult.Cancel)
{
return false;
}
else
{ // ， 1/100 Inch
m_nPrintWidth = ps.PageSettings.Bounds.Width - ps.PageSettings.Margins.Left - ps.PageSettings.Margins.Right;
m_nPrintHeight = ps.PageSettings.Bounds.Height - ps.PageSettings.Margins.Top - ps.PageSettings.Margins.Bottom;
margins = ps.PageSettings.Margins;
}
if (m_nPrintWidth <= 0 || m_nPrintHeight <= 0)
{
throw new Exception(" .");
}
/* listview column ， */
int listViewWidth = 0;
for (int i = 0; i < this.Columns.Count; i++)
{
listViewWidth += this.Columns[i].Width;
}
if (Convert.ToInt32(listViewWidth / x * 100) > m_nPrintWidth)
{
//throw new Exception(" ！\r
；\r
。");
}
m_oPrintDoc.DefaultPageSettings = ps.PageSettings;
return true;
}
/// <summary>
///
/// </summary>
private bool InitPrintPageNumber(Margins margins)
{
/* */
int headerFontHeight = m_oHeaderFont.Height;
int columnHeaderFontHeight = m_oColumnHeaderFont.Height;
int bodyFontHeight = m_oBodyFont.Height;
int tailFontHeight = m_oTailFont.Height;
//
m_oHeaderRect = new Rectangle(margins.Left, margins.Top, m_nPrintWidth, headerFontHeight + m_nLineSpace + 3);
int tailHeight = tailFontHeight + m_nLineSpace + 3;
// ， （ ）
m_oTailRect = new Rectangle(margins.Left, margins.Top + m_nPrintHeight - tailHeight, m_nPrintWidth, tailHeight);
//
m_oBodyRect = new Rectangle(margins.Left, m_oHeaderRect.Bottom + 2, m_nPrintWidth, m_oTailRect.Top - m_oHeaderRect.Bottom - 4);
/* */
int printItemPerPage = 0;
int firstPageItem = Convert.ToInt32((m_oBodyRect.Height - columnHeaderFontHeight - m_nLineSpace) / (bodyFontHeight + m_nLineSpace));
if (firstPageItem >= this.Items.Count)
{ //
m_nPageCount = 1;
}
else
{ //
printItemPerPage = firstPageItem;
int leftItems = this.Items.Count - firstPageItem;
if (m_bIsAlwaysPrintHeader == false)
{
printItemPerPage = (m_oBodyRect.Height + m_oHeaderRect.Height + 2 - columnHeaderFontHeight - m_nLineSpace) / (bodyFontHeight + m_nLineSpace);
}
if (leftItems % printItemPerPage == 0)
{
m_nPageCount = leftItems / printItemPerPage + 1;
}
else
{
m_nPageCount = leftItems / printItemPerPage + 2;
}
}
m_nTotalPage = m_nPageCount;
/* */
PrintDialog pd = new PrintDialog();
pd.Document = m_oPrintDoc;
pd.PrinterSettings.MinimumPage = 1;
pd.PrinterSettings.MaximumPage = m_nPageCount;
pd.PrinterSettings.FromPage = 1;
pd.PrinterSettings.ToPage = m_nPageCount;
pd.AllowPrintToFile = false; //
if (m_nPageCount > 1)
{
pd.AllowSelection = true;
}
else
{
pd.AllowSelection = false;
}
pd.AllowSomePages = true;
if (pd.ShowDialog() == DialogResult.OK)
{
m_nPageCount = pd.PrinterSettings.ToPage - pd.PrinterSettings.FromPage + 1;
if (pd.PrinterSettings.FromPage > 1)
{
m_nCurPrintItem = firstPageItem + (pd.PrinterSettings.FromPage - 2) * printItemPerPage;
}
else
{
m_nCurPrintItem = 0;
}
m_nFromPage = pd.PrinterSettings.FromPage;
m_oPrintDoc.DocumentName = m_nPageCount.ToString();
m_oPrintDoc.PrinterSettings = pd.PrinterSettings;
return true;
}
else
{
return false;
}
}
/// <summary>
/// ListView
/// </summary>
public virtual void DoPrint()
{
if (this.Items.Count <= 0)
{
throw new Exception(" .");
}
InitPrintDocument();
Margins margins = null;
if (InitPrintPage(out margins) == false)
return;
if (InitPrintPageNumber(margins) == false)
return;
if (m_bIsPreview == false)
{
m_oPrintDoc.Print();
}
else
{
PrintPreviewDialog pd = new PrintPreviewDialog();
pd.Document = m_oPrintDoc;
pd.PrintPreviewControl.Zoom = 1.0;
pd.WindowState = FormWindowState.Maximized;
pd.ShowInTaskbar = true;
pd.ShowDialog();
}
}
/// <summary>
///
/// </summary>
/// <param name="g"></param>
protected virtual void PrintPageHeader(Graphics g)
{
RectangleF textRect = new RectangleF(m_oHeaderRect.X, m_oHeaderRect.Y, m_oHeaderRect.Width, m_oHeaderRect.Height - 3);
CenterText(g, m_sPrintHeaderString, m_oHeaderFont, defaultBrush, textRect);
g.DrawLine(defaultPen, m_oHeaderRect.X, m_oHeaderRect.Bottom - 2, m_oHeaderRect.Right, m_oHeaderRect.Bottom - 2);
}
/// <summary>
///
/// </summary>
/// <param name="g"></param>
protected virtual void PrintPageBody(Graphics g)
{
Rectangle textRect = m_oBodyRect;
if (m_bIsAlwaysPrintHeader == false && m_nCurPrintPage != 1)
{
textRect = new Rectangle(m_oHeaderRect.X, m_oHeaderRect.Y, m_oHeaderRect.Width, m_oHeaderRect.Height + 2 + m_oBodyRect.Height);
}
/* , columnHeader */
int columnHeaderFontHeight = m_oColumnHeaderFont.Height;
int bodyFontHeight = m_oBodyFont.Height;
Rectangle columnHeaderRect = new Rectangle(textRect.X, textRect.Y, textRect.Width, columnHeaderFontHeight + m_nLineSpace);
DrawColumnHeader(g, m_oColumnHeaderFont, defaultBrush, columnHeaderRect);
/* */
int itemHeight = bodyFontHeight + m_nLineSpace;
Rectangle itemRect;
int yPos = columnHeaderRect.Bottom;
int printItemPerPage = (textRect.Height - columnHeaderRect.Height) / (bodyFontHeight + m_nLineSpace);
for (int i = 0; (i < printItemPerPage) && (m_nCurPrintItem < this.Items.Count); i++)
{
itemRect = new Rectangle(textRect.X, yPos, textRect.Width, itemHeight);
DrawItem(g, m_oBodyFont, defaultBrush, itemRect);
m_nCurPrintItem++;
yPos += itemHeight;
}
m_nCurPrintItem = 0; // added by Wooce
}
/// <summary>
///
/// </summary>
/// <param name="g"></param>
protected virtual void PrintPageTail(Graphics g)
{
g.DrawLine(defaultPen, m_oTailRect.X, m_oTailRect.Top + 1, m_oTailRect.Right, m_oTailRect.Top + 1);
RectangleF textRect = new RectangleF(m_oTailRect.X, m_oTailRect.Y + 3, m_oTailRect.Width, m_oTailRect.Height - 3);
string text = " " + m_nFromPage.ToString() + " " + m_nTotalPage.ToString() + " ";
m_nFromPage++;
CenterText(g, text, m_oTailFont, defaultBrush, textRect);
string time = " ：" + DateTime.Now.ToLongDateString() + " ";
RightText(g, time, m_oTailFont, defaultBrush, textRect);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PrintPage(object sender, PrintPageEventArgs e)
{
e.Graphics.PageUnit = GraphicsUnit.Inch;
e.Graphics.PageScale = .01f;
if (m_bIsAlwaysPrintHeader == true)
{
PrintPageHeader(e.Graphics);
}
else
{
if (m_nCurPrintPage == 1)
{
PrintPageHeader(e.Graphics);
}
}
PrintPageBody(e.Graphics);
PrintPageTail(e.Graphics);
if (m_nCurPrintPage == m_nPageCount)
{
e.HasMorePages = false;
}
else
{
e.HasMorePages = true;
}
m_nCurPrintPage++;
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BeginPrint(object sender, PrintEventArgs e)
{
m_nCurPrintPage = 1;
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void EndPrint(object sender, PrintEventArgs e)
{
}
/// <summary>
///
/// </summary>
private void CenterText(Graphics g, string t, Font f, Brush b, RectangleF rect)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
g.DrawString(t, f, b, rect, sf);
}
/// <summary>
///
/// </summary>
private void RightText(Graphics g, string t, Font f, Brush b, RectangleF rect)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Far;
sf.LineAlignment = StringAlignment.Center;
g.DrawString(t, f, b, rect, sf);
}
/// <summary>
///
/// </summary>
private void LeftText(Graphics g, string t, Font f, Brush b, RectangleF rect)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Near;
sf.LineAlignment = StringAlignment.Center;
g.DrawString(t, f, b, rect, sf);
}
/// <summary>
/// listview columnheader
/// </summary>
private void DrawColumnHeader(Graphics g, Font f, Brush b, Rectangle rect)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
Rectangle itemRect;
Point location = new Point(rect.Location.X, rect.Location.Y);
Size itemSize;
for (int i = 0; i < this.Columns.Count; i++)
{
itemSize = new Size(this.Columns[i].Width, rect.Height);
itemRect = new Rectangle(location, itemSize);
g.DrawRectangle(defaultPen, itemRect);
g.DrawString(this.Columns[i].Text, f, b, itemRect, sf);
location.X += this.Columns[i].Width;
}
}
/// <summary>
/// listview item
/// </summary>
private void DrawItem(Graphics g, Font f, Brush b, Rectangle rect)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Near;
sf.LineAlignment = StringAlignment.Center;
Rectangle itemRect;
Point location = new Point(rect.Location.X, rect.Location.Y);
Size itemSize;
for (int i = 0; i < this.Columns.Count; i++)
{
itemSize = new Size(this.Columns[i].Width, rect.Height);
itemRect = new Rectangle(location, itemSize);
g.DrawRectangle(defaultPen, itemRect);
g.DrawString(this.Items[m_nCurPrintItem].SubItems[i].Text, f, b, itemRect, sf);
location.X += this.Columns[i].Width;
}
}
}바로... 이다 protected virtual void PrintPageBody (Graphics g) 함수 의 끝 을 채 워 야 합 니 다.
m_nCurPrintItem = 0; // added by Wooce
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