int DoPrintPage(Graphics g,
float x0,
float y0,
Page page,
out string strError)
{
strError = "";
/*
StringFormat format = new StringFormat();
format.LineAlignment = StringAlignment.Far;
* */
for (int i = 0; i < page.Lines.Count; i++)
{
PrintLine line = page.Lines[i];
Debug.Assert(string.IsNullOrEmpty(line.FontDef) == false, "string.IsNullOrEmpty(line.FontDef) == false 不满足");
Font font = Global.BuildFont(line.FontDef);
Color color = GetColor(line.ColorDef);
try
{
float x = line.X + x0 + line.Indent;
float y = line.Y + y0;
float per_sep = 0;
if (line.HorzAlign == HorzAlign.Right
&& line.Boxes.Count > 0)
{
float right_blank = line.Width - line.Indent - GetLineWidth(line);
if (right_blank > 0)
x += right_blank;
}
else if (line.HorzAlign == HorzAlign.Center
&& line.Boxes.Count > 0)
{
float right_blank = line.Width - line.Indent - GetLineWidth(line);
// x += line.Indent; // - 2012/4/23 change
x += right_blank/2;
}
else if (line.HorzAlign == HorzAlign.LeftRight
&& line.Boxes.Count > 1
&& line.IsParagraphTail == false)
{
float right_blank = line.Width - line.Indent - GetLineWidth(line);
if (right_blank > 0)
per_sep = right_blank / ( line.Boxes.Count - 1);
}
for (int j = 0; j < line.Boxes.Count; j++)
{
Box box = line.Boxes[j];
// 如果中间有字体变化
string strFontString = box.FontDef;
if (String.IsNullOrEmpty(strFontString) == false)
{
font.Dispose();
font = Global.BuildFont(strFontString);
}
// 如果中间有颜色变化
string strColorString = box.ColorDef;
if (String.IsNullOrEmpty(strColorString) == false)
{
color = GetColor(strColorString);
}
using (Brush brush = new SolidBrush(color))
{
g.DrawString(box.Text,
font,
brush,
new PointF(x, y + (line.Height * line.BaseRatio) - box.Base));
}
x += box.Width + box.LeftBlank + per_sep;
}
}
finally
{
font.Dispose();
}
}
return 0;
}
// 处理一个矩形区域
int DoRect(
Graphics g,
XmlNode nodeContainer,
RectParam rect_def,
bool bRemainPage,
Hashtable macro_table,
RectGroup rect_group,
ref List<Page> pages,
out string strError)
{
strError = "";
int nRet = 0;
Padding padding = new Padding(0, 0, 0, 0);
string strPadding = DomUtil.GetAttr(nodeContainer,
"padding");
if (String.IsNullOrEmpty(strPadding) == false)
{
nRet = GetPadding(strPadding,
out padding,
out strError);
if (nRet == -1)
{
strError = "元素<" + nodeContainer.Name + ">中padding属性值 '" + strPadding + "' 格式错误: " + strError;
return -1;
}
}
rect_def.Padding = padding;
List<PrintLine> lines = new List<PrintLine>();
// 将一个容器元素下级的全部内容切割为Line数组
nRet = Process(g,
rect_def,
nodeContainer,
macro_table,
rect_group,
ref lines,
out strError);
if (nRet == -1)
return -1;
SetLastLine(lines);
// 组装到Page中
int iPage = 0;
Page current_page = null;
if (pages.Count > iPage)
current_page = pages[iPage];
else
{
current_page = new Page();
pages.Add(current_page);
}
float current_height = 0;
for (int i = 0; i < lines.Count; i++)
{
PrintLine line = lines[i];
if (current_height + line.Height > rect_def.Height - rect_def.Padding.Vertical
&& current_page.Lines.Count > 0 // 至少有一个行
&& bRemainPage == false)
{
// 新增一页
current_height = 0;
iPage++;
if (pages.Count > iPage)
current_page = pages[iPage];
else
{
current_page = new Page();
pages.Add(current_page);
}
}
//
line.X += rect_def.X + rect_def.Padding.Left;
line.Y += rect_def.Y + rect_def.Padding.Top + current_height;
current_page.Lines.Add(line);
current_height += line.Height;
}
return iPage;
}
