/// <summary>
/// 按纸张尺寸分页
/// </summary>
/// <param name="reportData"></param>
private static I3PrintAreas CalPrintAreas(I3ReportData reportData)
{
I3PrintAreas rowPringAreas = CalPrintAreasByRows(reportData);
I3PrintAreas printAreas = CalPrintAreasByCols(reportData, rowPringAreas);
return(printAreas);
}
private static I3PrintAreas CalPrintAreasByCols(I3ReportData reportData, I3PrintAreas rowAreas)
{
I3PageSetting setting = reportData.PageSetting;
float paperWidth = setting.PaperContentRect.Width;
I3PrintAreas printAreas = new I3PrintAreas();
foreach (int row in rowAreas.Dic.Keys)
{
I3PrintArea rowArea = rowAreas.Dic[row];
float totalWidth = rowArea.Width;
List <int> cols = new List <int>();
for (int j = 0; j < reportData.ColCount; j++)
{
if (reportData.Cols[j].Type != I3RowColType.数据 || reportData.Cols[j].Type == I3RowColType.None)
{
continue;
}
int colWidth = reportData.Cols[j].Width;
#region 在此列前分页
//列后分页,条件：已有列被添加，前面一列的列后分页属性=true，已有列的总宽度>0
bool breakBeforeThisCol = cols.Count > 0 && reportData.Cols[cols[cols.Count - 1]].PageBreak && totalWidth > rowArea.Width;
//尺寸超过
breakBeforeThisCol = breakBeforeThisCol || (setting.ColsPagerStyle == PagerStyle.纸张尺寸分页 && totalWidth + colWidth > paperWidth);
//列数超过
breakBeforeThisCol = breakBeforeThisCol || (setting.ColsPagerStyle == PagerStyle.数据行列数分页 && cols.Count >= setting.ColsPerPage);
if (breakBeforeThisCol)
{
I3PrintArea area = rowArea.Clone().AddCols(cols);
area.Width = totalWidth;
printAreas.Add(printAreas.Dic.Count, area);
totalWidth = rowArea.Width + colWidth;
cols.Clear();
cols.Add(j);
continue;
}
#endregion
//不分页
totalWidth += colWidth;
cols.Add(j);
}
//最后有些列未能分页
if (cols.Count > 0)
{
I3PrintArea area = rowArea.Clone().AddCols(cols);
area.Height = totalWidth;
printAreas.Add(printAreas.Dic.Count, area);
}
}
return(printAreas);
}
private static I3PrintAreas CalPrintAreasByRows(I3ReportData reportData)
{
I3PageSetting setting = reportData.PageSetting;
float paperHeight = setting.PaperContentRect.Height;
I3PrintArea defaultArea = GetDefaultRowPrintArea(reportData);
//先按行划分
I3PrintAreas rowPrintAreas = new I3PrintAreas();
float totalHeight = defaultArea.Height;
List <int> rows = new List <int>();
for (int i = 0; i < reportData.RowCount; i++)
{
if (reportData[i].Type != I3RowColType.数据 || reportData[i].Type == I3RowColType.None)
{
continue;
}
int rowHeight = reportData[i].Height;
#region 在此行前分页
//已有行被添加，前面一行的行后分页属性=true，已有行的总高度>0
bool breakBeforeThisRow = rows.Count > 0 && reportData[rows[rows.Count - 1]].PageBreak && totalHeight > defaultArea.Height;
//尺寸超过 条件：加上当前行后超过
breakBeforeThisRow = breakBeforeThisRow || (setting.RowsPagerStyle == PagerStyle.纸张尺寸分页 && totalHeight + rowHeight > paperHeight);
//行数超过
breakBeforeThisRow = breakBeforeThisRow || (setting.RowsPagerStyle == PagerStyle.数据行列数分页 && rows.Count >= setting.RowsPerPage);
if (breakBeforeThisRow)
{
I3PrintArea area = defaultArea.Clone().AddRows(rows);
area.Height = totalHeight;
rowPrintAreas.Add(rowPrintAreas.Dic.Count, area);
totalHeight = defaultArea.Height + rowHeight;
rows.Clear();
rows.Add(i); //不能用i--，如果某行大于整页宽度，会死循环
continue;
}
#endregion
//不分页
totalHeight += rowHeight;
rows.Add(i);
}
//最后有些行未能分页
if (rows.Count > 0)
{
I3PrintArea area = defaultArea.Clone().AddRows(rows);
area.Height = totalHeight;
rowPrintAreas.Add(rowPrintAreas.Dic.Count, area);
}
return(rowPrintAreas);
}
public void ReCalSizeAndPageInfo()
{
printAreas = new I3PrintAreas();
foreach (I3ReportData data in datas)
{
data.ReCalSizeAndPageInfo();
foreach (I3PrintArea area in data.PrintAreas.Dic.Values)
{
area.ReportData = data;
area.Index = printAreas.Dic.Count;
printAreas.Dic.Add(printAreas.Dic.Count, area);
}
}
}
internal void SetPrintAreas(I3PrintAreas printAreas)
{
this.printAreas = printAreas;
}
