/// <summary>
/// 更新当前页面对象
/// </summary>
/// <returns>操作是否改变了当前页面对象</returns>
protected bool UpdateCurrentPage()
{
if (_Pages != null)
{
MultiPageTransform trans = ( MultiPageTransform )this.myTransform;
PrintPage cpage = null;
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(
-this.AutoScrollPosition.X,
-this.AutoScrollPosition.Y,
this.ClientSize.Width,
this.ClientSize.Height);
int MaxHeight = 0;
foreach (PrintPage page in _Pages)
{
System.Drawing.Rectangle rect2 = System.Drawing.Rectangle.Intersect(
page.ClientBounds, rect);
if (!rect2.IsEmpty)
{
if (MaxHeight < rect2.Height)
{
cpage = page;
MaxHeight = rect2.Height;
}
}
}
if (cpage != myCurrentPage)
{
myCurrentPage = cpage;
return(true);
}
}
return(false);
}
public SimpleRectangleTransform GetTransformItemByViewPosition(float y)
{
MultiPageTransform trans = (MultiPageTransform)this.myTransform;
foreach (SimpleRectangleTransform item in trans)
{
if (item.DescRectF.Top >= y && item.DescRectF.Bottom >= y)
{
return(item);
}
}
return(null);
}
public SimpleRectangleTransform GetTransformItemByViewPosition(float x, float y)
{
MultiPageTransform trans = (MultiPageTransform)this.myTransform;
foreach (SimpleRectangleTransform item in trans)
{
if (item.DescRectF.Contains(x, y))
{
return(item);
}
}
return(null);
}
/// <summary>
/// 根据指定坐标的位置获得续打位置
/// </summary>
/// <param name="x">X坐标值</param>
/// <param name="y">Y坐标值</param>
/// <returns>续打位置</returns>
protected int GetJumpPrintPosition(int x, int y)
{
MultiPageTransform trans = ( MultiPageTransform )this.myTransform;
if (trans.ContainsSourcePoint(x, y))
{
int pos = this.myTransform.TransformPoint(x, y).Y;
if (pos >= 0)
{
return(pos);
}
}
return(0);
}
//private System.Drawing.Printing.Margins myClientMargins = new System.Drawing.Printing.Margins();
//private System.Drawing.Size myClientPageSize = System.Drawing.Size.Empty ;
/// <summary>
/// 刷新坐标转换信息
/// </summary>
protected override void RefreshScaleTransform()
{
MultiPageTransform trans = ( MultiPageTransform )this.myTransform;
intGraphicsUnit = _Pages.GraphicsUnit;
trans.Rate = GraphicsUnitConvert.GetRate(
intGraphicsUnit,
System.Drawing.GraphicsUnit.Pixel);
//float rate = ( float )( 1.0 / this.ClientToViewXRate );
//trans.Pages = myPages ;
//trans.Refresh( rate , this.intPageSpacing );
System.Drawing.Point sp = this.AutoScrollPosition;
trans.ClearSourceOffset();
trans.OffsetSource(sp.X, sp.Y, true);
}
// /// <summary>
// /// 无效矩形区域
// /// </summary>
// protected RectangleCounter myInvalidateRect = new RectangleCounter();
// /// <summary>
// /// 无效矩形区域
// /// </summary>
// [System.ComponentModel.Browsable(false)]
// public RectangleCounter InvalidateRect
// {
// get{ return myInvalidateRect ;}
// }
//
// /// <summary>
// /// 追加无效区域
// /// </summary>
// /// <param name="myRect"></param>
// public void AddInvalidateRect( System.Drawing.Rectangle myRect)
// {
// myInvalidateRect.Add( myRect );
// }
// /// <summary>
// /// 追加无效区域
// /// </summary>
// /// <param name="x"></param>
// /// <param name="y"></param>
// /// <param name="width"></param>
// /// <param name="height"></param>
// public void AddInvalidateRect( int x , int y , int width , int height)
// {
// myInvalidateRect.Add( x , y , width , height );
// }
//
// /// <summary>
// /// 更新无效区域
// /// </summary>
// public void UpdateInvalidateRect()
// {
// if( myInvalidateRect.IsEmpty == false)
// {
// this.ViewInvalidate( this.myInvalidateRect.Value );
// this.myInvalidateRect.Clear();
// }
// }
/// <summary>
/// 使用视图坐标来声明无效区域,程序准备重新绘制无效文档
/// </summary>
/// <param name="ViewBounds">无效区域</param>
public override void ViewInvalidate(System.Drawing.Rectangle ViewBounds)
{
ViewBounds = this.FixViewInvalidateRect(ViewBounds);
if (!ViewBounds.IsEmpty)
{
MultiPageTransform trans = this.myTransform as MultiPageTransform;
if (trans == null)
{
base.ViewInvalidate(ViewBounds);
}
else
{
foreach (SimpleRectangleTransform item in trans)
{
System.Drawing.Rectangle rect = System.Drawing.Rectangle.Intersect(item.DescRect, ViewBounds);
if (!rect.IsEmpty)
{
rect = item.UnTransformRectangle(rect);
this.Invalidate(rect);
}
}
}
}
}
/// <summary>
/// 绘制续打区域
/// </summary>
/// <param name="g">图形绘制对象</param>
/// <param name="ClipRectangle">剪切矩形</param>
/// <param name="Position">续打位置</param>
/// <param name="FillColor">填充色</param>
protected void DrawJumpPrintArea(
System.Drawing.Graphics g,
System.Drawing.Rectangle ClipRectangle,
JumpPrintInfo Position,
System.Drawing.Color FillColor)
{
if (Position == null || Position.Page == null || Position.Enabled == false)
{
return;
}
MultiPageTransform trans = ( MultiPageTransform )this.myTransform;
int pos = -1;
foreach (SimpleRectangleTransform item in trans)
{
if (item.ContentStyle == PageContentPartyStyle.Body &&
item.PageObject == Position.Page)
{
pos = item.UnTransformPoint(0, Position.Position + ( int )item.DescRectF.Top).Y;
}
}
if (pos < 0)
{
return;
}
//int pos = trans.UnTransformY( Position );
if (pos >= 0)
{
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(
0,
0,
this.ClientSize.Width,
pos);
System.Drawing.Rectangle rect2 = ClipRectangle;
if (ClipRectangle.IsEmpty)
{
rect2 = rect;
}
else
{
rect2 = System.Drawing.Rectangle.Intersect(rect, rect2);
}
if (!rect2.IsEmpty)
{
g.ResetClip();
g.PageUnit = System.Drawing.GraphicsUnit.Pixel;
g.ResetTransform();
using (System.Drawing.SolidBrush b = new System.Drawing.SolidBrush(FillColor))
{
g.FillRectangle(b, rect2);
}
using (System.Drawing.Pen p =
new System.Drawing.Pen(System.Drawing.Color.Blue, 2))
{
g.DrawLine(
p,
0,
rect.Bottom - 1,
this.ClientSize.Width,
rect.Bottom - 1);
}
}
}
}
/// <summary>
/// 根据分页信息更新页面排布
/// </summary>
public virtual void UpdatePages()
{
if (StackTraceHelper.CheckRecursion())
{
// 检查递归
return;
}
float rate = ( float )(1.0 / this.ClientToViewXRate);
if (this.ViewMode == PageViewMode.Normal)
{
this.PagesTransform.Clear();
this.PagesTransform.ClearSourceOffset();
SimpleRectangleTransform item = new SimpleRectangleTransform();
item.PageIndex = 0;
item.DescRectF = new RectangleF(0, 0, this.Pages.GetPageMaxWidth(), this.Pages.Height);
item.SourceRectF = new RectangleF(0, 0, item.DescRectF.Width * rate, item.DescRectF.Height * rate);
item.PageObject = this.Pages[0];
item.ContentStyle = PageContentPartyStyle.Body;
item.Enable = true;
item.DocumentObject = this.Pages[0].Document;
this.PagesTransform.Add(item);
this.PagesTransform.ClearSourceOffset();
this.RefreshScaleTransform();
Size msize = new Size(
( int )Math.Ceiling(item.SourceRectF.Width),
( int )Math.Ceiling(item.SourceRectF.Height));
if (this.AutoScrollMinSize.Equals(msize) == false)
{
this.AutoScrollMinSize = msize;
}
this.CurrentPage = this.Pages[0];
int topCount = 0;
foreach (PrintPage page in this.Pages)
{
page.ClientBounds = new Rectangle(
0,
(int )(topCount * rate),
(int)(page.Bounds.Width * rate),
(int)(page.Bounds.Height * rate));
topCount = topCount + page.Bounds.Height;
}
//int ClientWidth = this.ClientSize.Width;
//int x = 0;
//if (ClientWidth <= this.AutoScrollMinSize.Width)
//{
// x = 0;// this.PageSpacing / 2;
//}
//else
//{
// x = (ClientWidth - this.AutoScrollMinSize.Width) / 2;
//}
//this.PagesTransform.OffsetSource(x, 0, false);
}
else
{
Size TotalSize = new Size(0, 0);
foreach (PrintPage page in this.Pages)
{
TotalSize.Height = (int)(TotalSize.Height
+ this.PageSpacing
+ page.PageSettings.ViewPaperHeight * rate);
if (TotalSize.Width < page.PageSettings.ViewPaperWidth * rate)
{
TotalSize.Width = (int)(page.PageSettings.ViewPaperWidth * rate);
}
//page.OwnerPages = this.Pages;
}
TotalSize.Width += this.PageSpacing * 2;
TotalSize.Height += this.PageSpacing;
foreach (PrintPage page in this.Pages)
{
page.ClientLeftFix = (int)(TotalSize.Width
- page.PageSettings.ViewPaperWidth * rate) / 2;
}
if (this.AutoScrollMinSize.Equals(TotalSize) == false)
{
this.AutoScrollMinSize = TotalSize;
}
MultiPageTransform trans = (MultiPageTransform)this.Transform;
base.intGraphicsUnit = this.Pages.GraphicsUnit;
trans.Pages = this.Pages;
trans.Refresh(rate, this.PageSpacing);
int ClientWidth = this.ClientSize.Width;
int x = 0;
if (ClientWidth <= TotalSize.Width)
{
x = 0;// this.PageSpacing / 2;
}
else
{
x = (ClientWidth - TotalSize.Width) / 2;
}
trans.OffsetSource(x, 0, false);
this.RefreshScaleTransform();
//System.Drawing.Rectangle rect = System.Drawing.Rectangle.Empty ;
int topCount = this.PageSpacing;
foreach (PrintPage page in this.Pages)
{
System.Drawing.Rectangle clientRect = System.Drawing.Rectangle.Empty;
clientRect.X = x + page.ClientLeftFix;
clientRect.Y = topCount;
clientRect.Width = (int)(page.PageSettings.ViewPaperWidth * rate);
clientRect.Height = (int)(page.PageSettings.ViewPaperHeight * rate);
//page.ClientLocation = new Point(this.AutoScrollPosition.X, this.AutoScrollPosition.Y);
page.ClientBounds = clientRect;
page.ClientMargins = new System.Drawing.Printing.Margins(
(int)(page.ViewLeftMargin * rate),
(int)(page.ViewRightMargin * rate),
(int)(page.ViewTopMargin * rate),
(int)(page.ViewBottomMargin * rate));
topCount = topCount + clientRect.Height + this.PageSpacing;
}//foreach
this.UpdateCurrentPage();
}
}
/// <summary>
/// 已重载:绘制文档内容
/// </summary>
/// <param name="e">绘制事件参数</param>
protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)
{
//if (this.DesignMode)
{
base.OnPaint(e);
}
if (this.IsUpdating)
{
return;
}
System.Drawing.Rectangle clipRect = e.ClipRectangle;
clipRect.Height += 1;
System.Drawing.Point sp = this.AutoScrollPosition;
//int ax = - this.AutoScrollPosition.X ;
//int ay = - this.AutoScrollPosition.Y ;
this.RefreshScaleTransform();
if (this.PagesTransform == null || this.PagesTransform.Count == 0)
{
// 没有任何内容可以绘制
return;
}
if (this.ViewMode == PageViewMode.Normal)
{
using (SolidBrush b = new SolidBrush(this.PageBackColor))
{
e.Graphics.FillRectangle(b, e.ClipRectangle);
}
SimpleRectangleTransform item = this.PagesTransform[0];
PrintPage myPage = (PrintPage)item.PageObject;
Rectangle rect = item.SourceRect;
rect.Width = rect.Width + 30;
rect = Rectangle.Intersect(
clipRect,
rect);
if (rect.IsEmpty == false)
{
// 保存状态
System.Drawing.Drawing2D.GraphicsState state2 = e.Graphics.Save();
//try
{
PaintEventArgs e2 = this.CreatePaintEventArgs(e, item);
if (e2 != null)
{
PageDocumentPaintEventArgs e3 = new PageDocumentPaintEventArgs(
e2.Graphics,
e2.ClipRectangle,
myPage.Document,
myPage,
item.ContentStyle);
e3.ContentBounds = item.DescRect;
e3.RenderMode = ContentRenderMode.Paint;
e3.PageIndex = myPage.PageIndex;
e3.NumberOfPages = this.Pages.Count;
//e3.EditMode = this.EditMode;
if (myPage.Document != null)
{
myPage.Document.DrawContent(e3);
}//if
}
}
//catch (Exception ext)
//{
// System.Console.WriteLine(ext.ToString());
//}
// 恢复状态
e.Graphics.Restore(state2);
}
return;
}
//
MultiPageTransform trans = ( MultiPageTransform )this.Transform;
// trans.ClearSourceOffset();
// trans.OffsetSource( sp.X , sp.Y , true );
System.Drawing.Graphics g = e.Graphics;
//System.Drawing.Drawing2D.GraphicsState stateBack = e.Graphics.Save();
foreach (PrintPage myPage in this.Pages)
{
System.Drawing.Rectangle ClientBounds = myPage.ClientBounds;
ClientBounds.Offset(sp);
ClientBounds.Width = ClientBounds.Width + 20;
//if( clipRect.Top <= ClientBounds.Bottom + 5
// && clipRect.Bottom >= ClientBounds.Top )
if (clipRect.IntersectsWith(
new Rectangle(
ClientBounds.Left,
ClientBounds.Top,
ClientBounds.Width + 5,
ClientBounds.Height + 5)))
{
//this.SetPageIndex( myPage.Index );
//e.Graphics.Restore(stateBack);
//e.Graphics.ResetClip();
DrawPageFrame(
myPage,
e.Graphics,
clipRect,
true);
for (int iCount = trans.Count - 1; iCount >= 0; iCount--)
{
SimpleRectangleTransform item = trans[iCount];
if (item.Visible && item.PageObject == myPage)
{
// 显示页眉页脚标记文本
if (item.ContentStyle == PageContentPartyStyle.Header)
{
if (this.HeaderFooterFlagVisible == HeaderFooterFlagVisible.Header ||
this.HeaderFooterFlagVisible == HeaderFooterFlagVisible.HeaderFooter)
{
// 绘制页眉标记
//e.Graphics.Restore(stateBack);
DrawHeaderFooterFlag(
PrintingResources.Header,
item.PartialAreaSourceBounds,
e.Graphics);
}
}
else if (item.ContentStyle == PageContentPartyStyle.Footer)
{
if (this.HeaderFooterFlagVisible == HeaderFooterFlagVisible.Footer ||
this.HeaderFooterFlagVisible == HeaderFooterFlagVisible.HeaderFooter)
{
// 绘制页脚标记
//e.Graphics.Restore(stateBack);
DrawHeaderFooterFlag(
PrintingResources.Footer,
item.PartialAreaSourceBounds,
e.Graphics);
}
}
Rectangle rect = item.SourceRect;
rect = Rectangle.Intersect(
clipRect,
rect);
if (rect.IsEmpty == false)
{
System.Drawing.Drawing2D.GraphicsState state2 = e.Graphics.Save();
PaintEventArgs e2 = this.CreatePaintEventArgs(e, item);
if (e2 != null)
{
PageDocumentPaintEventArgs e3 = new PageDocumentPaintEventArgs(
e2.Graphics,
e2.ClipRectangle,
myPage.Document,
myPage,
item.ContentStyle);
e3.ContentBounds = item.DescRect;
e3.RenderMode = ContentRenderMode.Paint;
e3.PageIndex = myPage.PageIndex;
e3.NumberOfPages = this.Pages.Count;
//e3.EditMode = this.EditMode;
if (myPage.Document != null)
{
myPage.Document.DrawContent(e3);
}//if
}
e.Graphics.Restore(state2);
if (item.Enable == false)
{
// 若区域无效则用白色半透明进行覆盖，以作标记
using (System.Drawing.SolidBrush maskBrush
= new SolidBrush(Color.FromArgb(140, this.PageBackColor)))
{
e.Graphics.FillRectangle(
maskBrush,
rect.Left,
rect.Top,
rect.Width + 2,
rect.Height + 2);
}
}
} //if
// ClipRect.Height -= 1;
}
} //foreach
} //if
} //foreach
DrawHeadShadow();
//base.OnPaint( e );
//e.Graphics.Flush(System.Drawing.Drawing2D.FlushIntention.Sync);
//System.Threading.Thread.Sleep(100);
}