public int Open(string strInputFileName,
out string strError)
{
strError = "";
try
{
m_file = File.Open(strInputFileName,
FileMode.Open,
FileAccess.Read);
}
catch (Exception ex)
{
strError = "打开文件 " + strInputFileName + " 失败: " + ex.Message;
return -1;
}
if (this.SetProgress != null)
{
SetProgressEventArgs e = new SetProgressEventArgs();
e.Start = 0;
e.End = m_file.Length;
e.Value = -1;
this.SetProgress(this, e);
}
this.XmlFilename = strInputFileName;
this.m_reader = new XmlTextReader(m_file);
while (true)
{
bool bRet = m_reader.Read();
if (bRet == false)
{
strError = "没有根元素";
return -1;
}
if (m_reader.NodeType == XmlNodeType.Element)
break;
}
string strPageSettingXml = "";
// return:
// -1 error
// 0 normal
// 1 reach file end。strXml中无内容
int nRet = GetPageSetting(
out strPageSettingXml,
out strError);
if (nRet == -1)
return -1;
if (nRet == 0)
{
this.m_pagesetting = new PageSetting();
nRet = this.m_pagesetting.Build(strPageSettingXml,
out strError);
if (nRet == -1)
return -1;
}
else
{
this.m_pagesetting = null; // 表示XML文件中没有定义
}
/*
m_reader.Close();
m_file = File.Open(strInputFileName,
FileMode.Open,
FileAccess.Read);
* */
m_file.Position = 0;
this.m_reader = new XmlTextReader(m_file);
this.m_nPageNo = 0;
this.m_pages.Clear();
this.EOF = false;
return 0;
}
internal void DoPrintPage(
IWin32Window owner,
string strStyle,
PrintPageEventArgs e)
{
string strError = "";
int nRet = 0;
if (e.Cancel == true)
return;
// 如果XML文件中没有页面参数，则采用当前实际的
if (this.m_pagesetting == null)
{
this.m_pagesetting = new PageSetting();
this.m_pagesetting.Width = e.PageBounds.Width;
this.m_pagesetting.Height = e.PageBounds.Height;
}
else
{
if (this.m_pagesetting.Width == 0)
this.m_pagesetting.Width = e.PageBounds.Width;
if (this.m_pagesetting.Height == 0)
this.m_pagesetting.Height = e.PageBounds.Height;
}
bool bTestingGrid = false;
if (StringUtil.IsInList("TestingGrid", strStyle) == true)
bTestingGrid = true;
int nYCount = 0;
int nXCount = 0;
// 垂直方向的个数
nYCount = (int)Math.Floor((float)e.PageBounds.Height
/ this.m_pagesetting.Height);
// 2012/4/24
if (nYCount == 0)
nYCount = 1;
// 水平方向的个数
nXCount = (int)Math.Floor((float)e.PageBounds.Width
/ this.m_pagesetting.Width);
// 2012/4/24
if (nXCount == 0)
nXCount = 1;
int from = 0;
int to = 0;
bool bOutput = true;
if (e.PageSettings.PrinterSettings.PrintRange == PrintRange.SomePages)
{
from = e.PageSettings.PrinterSettings.FromPage;
to = e.PageSettings.PrinterSettings.ToPage;
// 交换，保证from为小
if (from > to)
{
int temp = to;
to = from;
from = temp;
}
if (this.m_nPageNo == 0)
{
this.m_nPageNo = from;
Debug.Assert(this.m_nPageNo >= 1, "this.m_nPageNo >= 1 不满足");
long nLabelCount = (nXCount * nYCount) * (this.m_nPageNo - 1);
//
if (this.EOF == false)
{
// parameters:
// nCount 希望最少获得的page对象数
// return:
// 0 普通
// 1 文件已经到达末尾，后面再也没有任何<document>了
nRet = GetPages(
e.Graphics,
(int)nLabelCount,
true,
out strError);
if (nRet == -1)
goto ERROR1;
if (nRet == 1)
{
this.EOF = true;
if (this.m_pages.Count <= nLabelCount)
{
e.Cancel = true;
return;
}
}
for (int i = 0; i < nLabelCount; i++)
{
this.m_pages.RemoveAt(0);
}
}
}
}
else
{
if (this.m_nPageNo == 0)
this.m_nPageNo = 1; // 一般性的初始化
}
// 加快运行速度
float nXDelta = e.PageSettings.PrintableArea.Left;
float nYDelta = e.PageSettings.PrintableArea.Top;
if (this.OriginAtMargins == false)
{
nXDelta = 0;
nYDelta = 0;
}
float nPrintableWidth = e.PageSettings.PrintableArea.Width;
float nPrintableHeight = e.PageSettings.PrintableArea.Height;
// 绘制可打印区域
// 黄色
if (bTestingGrid == true && bOutput == true)
{
float nXOffs = 0;
float nYOffs = 0;
// 如果为正式打印，左上角(0,0)已经就是可以打印区域的左上角
// 如果为preview模式，则左上角要向右向下移动，才能模拟出显示效果
if (this.OriginAtMargins == false)
{
nXOffs = e.PageSettings.PrintableArea.Left;
nYOffs = e.PageSettings.PrintableArea.Top;
}
using (Pen pen = new Pen(Color.Green, (float)1))
{
DrawFourAngel(
e.Graphics,
pen,
nXOffs,
nYOffs,
nPrintableWidth,
nPrintableHeight,
50); // 半英寸
}
}
// 绘制内容区域边界(也就是排除了页面边空的中间部分)
// 绿色
if (bTestingGrid == true && bOutput == true)
{
using (Pen pen = new Pen(Color.Green, (float)3))
{
/*
e.Graphics.DrawRectangle(pen,
label_param.PageMargins.Left - nXDelta,
label_param.PageMargins.Top - nYDelta,
e.PageBounds.Width - label_param.PageMargins.Left - label_param.PageMargins.Right,
e.PageBounds.Height - label_param.PageMargins.Top - label_param.PageMargins.Bottom);
*/
}
}
// bool bEOF = false;
#if NO
if (this.m_pages.Count == 0)
{
string strXml = "";
// TODO: 如何提前判断这是最后一个document
// return:
// -1 error
// 0 normal
// 1 reach file end
nRet = GetOneDocument(
out strXml,
out strError);
if (nRet == -1)
goto ERROR1;
if (nRet == 1)
{
bEOF = true;
goto END1;
}
else
{
List<Page> temp_pages = null;
nRet = BuildPages(
e.Graphics,
strXml,
this.m_pagesetting.Width,
this.m_pagesetting.Height,
out temp_pages,
out strError);
if (nRet == -1)
goto ERROR1;
this.m_pages.AddRange(temp_pages);
}
}
#endif
if (this.EOF == false)
{
// parameters:
// nCount 希望最少获得的page对象数
// return:
// 0 普通
// 1 文件已经到达末尾，后面再也没有任何<document>了
nRet = GetPages(
e.Graphics,
(nXCount * nYCount) + 1,
false,
out strError);
if (nRet == -1)
goto ERROR1;
if (nRet == 1)
this.EOF = true;
}
Debug.Assert(this.m_pages.Count > 0, "this.m_pages.Count > 0 不满足");
float y = 0;
for (int i = 0; i < nYCount; i++)
{
float x = 0;
for (int j = 0; j < nXCount; j++)
{
if (this.m_pages.Count == 0)
goto END1;
Page current_page = this.m_pages[0];
this.m_pages.RemoveAt(0);
if (bOutput == true)
{
nRet = DoPrintPage(e.Graphics,
x,
y,
current_page,
out strError);
if (nRet == -1)
goto ERROR1;
// 绘制标签边界
// 黑色
if (bTestingGrid == true)
{
using (Pen pen = new Pen(Color.Black, (float)1))
{
e.Graphics.DrawRectangle(pen,
x - nXDelta,
y - nYDelta,
this.m_pagesetting.Width,
this.m_pagesetting.Height);
}
}
} // end if bOutput == true
x += this.m_pagesetting.Width;
}
y += this.m_pagesetting.Height;
}
#if NO
Page current_page = this.m_pages[0];
this.m_pages.RemoveAt(0);
nRet = PrintPage(e.Graphics,
current_page,
out strError);
if (nRet == -1)
goto ERROR1;
// float y = label_param.PageMargins.Top;
#endif
END1:
// If more lines exist, print another page.
if (this.EOF == true && this.m_pages.Count == 0)
{
e.HasMorePages = false;
return;
}
else
{
if (e.PageSettings.PrinterSettings.PrintRange == PrintRange.SomePages)
{
if (this.m_nPageNo >= to)
{
e.HasMorePages = false;
return;
}
}
}
this.m_nPageNo++;
e.HasMorePages = true;
return;
ERROR1:
MessageBox.Show(owner, strError);
}
