public void LocateCurrentPage(int x, int y, bool isLocateChild = true)
{
if (Pages.Count == 1)
{
CurrentPage = Pages.FirstOrDefault(page => 0 <= y && page.Y + page.Height + page.Spacing >= y);
}
else
{
CurrentPage = Pages.FirstOrDefault(page => page.Y <= y && page.Y + page.Height + page.Spacing >= y);
}
if (!isLocateChild) return;
if (CurrentPage != null) CurrentPage.Locate(x, y);
}
public DPage InsertPage()
{
var page = new DPage();
page.SetDocument(this);
if (Pages.Count == 0)
{
page.Index = 1;
}
else
{
var lpage = Pages[Pages.Count - 1];
lpage.NextPage = page;
page.PrePage = lpage;
page.X = lpage.X;
page.SetDocument(lpage.GetDocument());
}
page.Initialize();
Pages.Add(page);
CurrentPage = page;
Context.AutoScrollMinSize = new Size(page.MarginLeft + page.Width + page.MarginRight,
page.MarginTop + (page.Height + page.Spacing) * Pages.Count + page.OffsetY);
return page;
}
public DPage InsertPageAfter(DPage prePage)
{
var index = Pages.IndexOf(prePage);
if (index < 0) return null;
var page = new DPage();
if (prePage.NextPage == null)
{
prePage.NextPage = page;
page.PrePage = prePage;
}
else
{
page.PrePage = prePage;
page.NextPage = prePage.NextPage;
prePage.NextPage.PrePage = page;
prePage.NextPage = page;
}
page.SetDocument(page.PrePage.GetDocument());
page.X = prePage.X;
page.Initialize();
Pages.Add(page);
CurrentPage = page;
Context.AutoScrollMinSize = new Size(page.MarginLeft + page.Width + page.MarginRight,
page.MarginTop + (page.Height + page.Spacing) * Pages.Count + page.OffsetY);
return page;
}
public void DeleteAfterAllPage(DPage page)
{
if (page == null) return;
var tempPage = page;
while (tempPage != null)
{
var nPage = tempPage.NextPage;
DeletePage(tempPage);
tempPage = nPage;
}
}
public void DeletePage(DPage page)
{
var index = Pages.IndexOf(page);
if (index < 0) return;
if (page.PrePage != null)
{
if (page.NextPage != null)
{
page.PrePage.NextPage = page.NextPage;
page.NextPage.PrePage = page.PrePage;
page.NextPage = null;
page.PrePage = null;
}
else
{
page.PrePage.NextPage = null;
page.PrePage = null;
}
}
else if (page.NextPage != null)
{
page.NextPage.PrePage = null;
page.NextPage = null;
}
Pages.Remove(page);
if (Pages.Count > 0) CurrentPage = Pages[Pages.Count - 1];
Context.AutoScrollMinSize = new Size(page.MarginLeft + page.Width + page.MarginRight,
page.MarginTop + (page.Height + page.Spacing) * Pages.Count + page.OffsetY);
}
/// <summary>
/// 全选
/// </summary>
private void SelectAll()
{
var row = FirstRow;
while (row != null)
{
row.IsSelected = true;
SelectedRows.Add(row);
row.SelectAllMember();
row = row.NextDocRow;
}
CurrentPage = Pages[0];
if (SelectedRows.Count > 0)
Context.HideCursor();
}
/// <summary>
/// 移动行
/// </summary>
private void MoveRow(DDocRow row, DPage currentPage)
{
if (row == null) return;
//该行超出所在页面范围，则移至下一页
var rowPointer = row;
var pagePointer = currentPage;
var maxHeight = pagePointer.Y + pagePointer.Height - pagePointer.PaddingBottom;
while (rowPointer != null)
{
//第一行肯定是页首行，所以不能更改页首行标志
if (!rowPointer.Equals(FirstRow))
{
rowPointer.IsPageFirst = false;
}
//如果该行超出该页高度，则与下一页合并成为首行
if (rowPointer.Y >= maxHeight ||
rowPointer.Y + rowPointer.Height > maxHeight)
{
//下一页为空或者行的高度等于或超过页的高度，则创建新页
if (pagePointer.NextPage == null || rowPointer.Height >= pagePointer.Height)
{
var page = InsertPageAfter(pagePointer);
rowPointer.IsPageFirst = true;
page.PageBody.Data = rowPointer;
page.Resize();
Context.AutoScrollPosition = new Point(0, row.Y + row.Height - Context.Height);
Context.ForceShowCursor();
MoveRow(rowPointer, page);
return;
}
//将指针指向下一页
pagePointer = pagePointer.NextPage;
//将该行设置为下一页行首
rowPointer.IsPageFirst = true;
pagePointer.PageBody.Data = rowPointer;
pagePointer.Resize();
//行指针下移
rowPointer = rowPointer.NextDocRow;
if (rowPointer == null) break;
rowPointer.IsPageFirst = false;
MoveRow(rowPointer, pagePointer);
return;
}
var prePage = pagePointer.PrePage;
//如果超出上一页则放置在当前页
if (prePage != null)
{
var maxHeight2 = prePage.Y + prePage.Height - prePage.PaddingBottom;
if (rowPointer.Y >= maxHeight2 || rowPointer.Y + rowPointer.Height > maxHeight2)
{
if (rowPointer.Equals(pagePointer.PageBody.Data))
{
rowPointer.IsPageFirst = true;
}
else if (rowPointer.PreDocRow != null &&
rowPointer.PreDocRow.Y + rowPointer.PreDocRow.Height <= maxHeight2)
{
rowPointer.IsPageFirst = true;
pagePointer.PageBody.Data = rowPointer;
pagePointer.Resize();
}
}
}
//如果已经遍历到最后一行，对最后一行所在页之后的空页进行删除
if (rowPointer.NextDocRow == null)
{
var page = GetPage(rowPointer.X, rowPointer.Y);
DeleteAfterAllPage(pagePointer.NextPage);
}
rowPointer = rowPointer.NextDocRow;
}
}
/// <summary>
/// 绘制页面边距线
/// </summary>
/// <param name="graphics"></param>
/// <param name="page"></param>
/// <param name="x"></param>
/// <param name="y"></param>
private void PaintPageEdgeLine(Graphics graphics, DPage page)
{
//左上角(横、竖)
graphics.DrawLine(_mpen, page.PaddingLeft - page.EdgeLineLength,
page.PaddingTop, page.PaddingLeft, page.PaddingTop);
graphics.DrawLine(_mpen, page.PaddingLeft,
page.PaddingTop - page.EdgeLineLength, page.PaddingLeft,
page.PaddingTop);
//右上角
graphics.DrawLine(_mpen, page.Width - page.PaddingRight, page.PaddingTop,
page.Width - page.PaddingRight + page.EdgeLineLength, page.PaddingTop);
graphics.DrawLine(_mpen, page.Width - page.PaddingRight,
page.PaddingTop - page.EdgeLineLength,
page.Width - page.PaddingRight, page.PaddingTop);
//左下角
graphics.DrawLine(_mpen, page.PaddingLeft - page.EdgeLineLength,
page.Height - page.PaddingBottom, page.PaddingLeft,
page.Height - page.PaddingBottom);
graphics.DrawLine(_mpen, page.PaddingLeft, page.Height - page.PaddingBottom,
page.PaddingLeft, page.Height - page.PaddingBottom + page.EdgeLineLength);
//右下角
graphics.DrawLine(_mpen, page.Width - page.PaddingRight, page.Height - page.PaddingBottom,
page.Width - page.PaddingRight + page.EdgeLineLength,
page.Height - page.PaddingBottom);
graphics.DrawLine(_mpen, page.Width - page.PaddingRight, page.Height - page.PaddingBottom,
page.Width - page.PaddingRight,
page.Height - page.PaddingBottom + page.EdgeLineLength);
}
/// <summary>
/// 绘制页面
/// </summary>
/// <param name="graphics"></param>
/// <param name="page"></param>
private void PaintPage(Graphics graphics, DPage page)
{
//graphics.SmoothingMode = SmoothingMode.AntiAlias;
var radius = (int)(page.Height * .02);
var lwidth = page.Width + page.OffsetX * 2;
var lheight = page.Height + page.OffsetY * 2;
if (_bitmap != null && _bitmap.Width == lwidth && _bitmap.Height == lheight)
{
graphics.DrawImage(_bitmap, page.X, page.Y);
return;
}
_bitmap = new Bitmap(lwidth, lheight);
var bitGraphics = Graphics.FromImage(_bitmap);
try
{
using (var path = new GraphicsPath())
{
path.AddLine(radius, 0, lwidth - (radius * 2), 0);
path.AddArc(lwidth - (radius * 2), 0, radius * 2, radius * 2, 270, 90);
path.AddLine(lwidth, radius, lwidth, lheight - (radius * 2));
path.AddArc(lwidth - (radius * 2), lheight - (radius * 2), radius * 2, radius * 2, 0, 90);
path.AddLine(lwidth - (radius * 2), lheight, radius, lheight);
path.AddArc(0, lheight - (radius * 2), radius * 2, radius * 2, 90, 90);
path.AddLine(0, lheight - (radius * 2), 0, radius);
path.AddArc(0, 0, radius * 2, radius * 2, 180, 90);
using (var brush = new PathGradientBrush(path))
{
brush.WrapMode = WrapMode.Clamp;
brush.InterpolationColors = _colorBlend;
bitGraphics.FillPath(brush, path);
}
using (var pen = new Pen(Color.White, 1f))
{
path.Reset();
path.AddRectangle(new Rectangle(page.OffsetX, page.OffsetY, page.Width, page.Height));
bitGraphics.FillPath(new SolidBrush(Color.White), path);
}
}
PaintPageEdgeLine(bitGraphics, page);
graphics.DrawImage(_bitmap, page.X, page.Y);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(GetType().Name + ".PaintShadow() Error: " + ex.Message);
}
}
private XmlElement ExportPage(XmlDocument xmlDocument, XmlElement docElement, DPage page)
{
var pageElement = xmlDocument.CreateElement("page");
docElement.AppendChild(pageElement);
var headerElement = xmlDocument.CreateElement("header");
var footerElement = xmlDocument.CreateElement("footer");
var bodyElement = xmlDocument.CreateElement("body");
pageElement.AppendChild(headerElement);
pageElement.AppendChild(footerElement);
pageElement.AppendChild(bodyElement);
//写入页面属性
pageElement.SetAttribute("bodyWidth", Convert.ToString(page.BodyWidth));
pageElement.SetAttribute("bodyHeight", Convert.ToString(page.BodyHeight));
pageElement.SetAttribute("headerWidth", Convert.ToString(page.HeaderWidth));
pageElement.SetAttribute("headerHeight", Convert.ToString(page.HeaderHeight));
pageElement.SetAttribute("footerWidth", Convert.ToString(page.FooterWidth));
pageElement.SetAttribute("footerHeight", Convert.ToString(page.FooterHeight));
pageElement.SetAttribute("paddingLeft", Convert.ToString(page.PaddingLeft));
pageElement.SetAttribute("paddingRight", Convert.ToString(page.PaddingRight));
pageElement.SetAttribute("paddingTop", Convert.ToString(page.PaddingTop));
pageElement.SetAttribute("paddingBottom", Convert.ToString(page.PaddingBottom));
pageElement.SetAttribute("edgeLineLength", Convert.ToString(page.EdgeLineLength));
pageElement.SetAttribute("offsetX", Convert.ToString(page.OffsetX));
pageElement.SetAttribute("offsetY", Convert.ToString(page.OffsetY));
pageElement.SetAttribute("width", Convert.ToString(page.Width));
pageElement.SetAttribute("height", Convert.ToString(page.Height));
pageElement.SetAttribute("marginLeft", Convert.ToString(page.MarginLeft));
pageElement.SetAttribute("marginRight", Convert.ToString(page.MarginRight));
pageElement.SetAttribute("marginTop", Convert.ToString(page.MarginTop));
pageElement.SetAttribute("marginBottom", Convert.ToString(page.MarginBottom));
pageElement.SetAttribute("spacing", Convert.ToString(page.Spacing));
//写入页眉属性
headerElement.SetAttribute("width", Convert.ToString(page.PageHeader.Width));
headerElement.SetAttribute("height", Convert.ToString(page.PageHeader.Height));
headerElement.SetAttribute("paddingLeft", Convert.ToString(page.PageHeader.PaddingLeft));
headerElement.SetAttribute("paddingRight", Convert.ToString(page.PageHeader.PaddingRight));
headerElement.SetAttribute("paddingTop", Convert.ToString(page.PageHeader.PaddingTop));
headerElement.SetAttribute("paddingBottom", Convert.ToString(page.PageHeader.PaddingBottom));
var headerChildNodes = page.PageHeader.OwnerDocument.Convert2Xml(xmlDocument);
headerChildNodes.ForEach(data=> headerElement.AppendChild(data));
//写入页脚属性
footerElement.SetAttribute("width", Convert.ToString(page.PageFooter.Width));
footerElement.SetAttribute("height", Convert.ToString(page.PageFooter.Height));
footerElement.SetAttribute("paddingLeft", Convert.ToString(page.PageFooter.PaddingLeft));
footerElement.SetAttribute("paddingRight", Convert.ToString(page.PageFooter.PaddingRight));
footerElement.SetAttribute("paddingTop", Convert.ToString(page.PageFooter.PaddingTop));
footerElement.SetAttribute("paddingBottom", Convert.ToString(page.PageFooter.PaddingBottom));
var footerChildNodes = page.PageFooter.OwnerDocument.Convert2Xml(xmlDocument);
footerChildNodes.ForEach(data => footerElement.AppendChild(data));
//写入页面body属性
bodyElement.SetAttribute("width", Convert.ToString(page.PageBody.Width));
bodyElement.SetAttribute("height", Convert.ToString(page.PageBody.Height));
return bodyElement;
}
