public override bool OnDropFinished(PVDragContext dc)
{
bool needUpdateDrawWords = false;
/*if (this.Cardinality == SMConnectionCardinality.One && dc.draggedItem != null)
* {
* drawWords.Clear();
* DroppedItems.Clear();
* drawWordsModified = true;
* needUpdateDrawWords = true;
* }
* else if (this.Cardinality == SMConnectionCardinality.Many)
* {
* needUpdateDrawWords = true;
* }
* else*/
{
if (dc.draggedItem != null)
{
Point p = dc.lastPoint;
p.Offset(-Area.Left, -Area.Top);
SMWordToken lastToken = null;
foreach (SMWordBase wt in drawWords)
{
if (wt is SMWordToken)
{
lastToken = wt as SMWordToken;
}
if (wt.rect.Contains(p))
{
if (wt is SMWordToken)
{
SMWordToken wtk = (SMWordToken)wt;
if (wtk.Editable)
{
wtk.AcceptString(dc.draggedItem.Tag);
wtk.UIStateHover = false;
drawWordsModified = true;
return(true);
}
else if (wtk.Cardinality == SMConnectionCardinality.One || wtk.Cardinality == SMConnectionCardinality.Many)
{
wtk.UIStateHover = false;
return(SendContentToToken(dc, wtk));
}
}
}
}
if (DropablesCount == 1 && lastToken != null)
{
return(SendContentToToken(dc, lastToken));
}
}
}
if (base.OnDropFinished(dc) && needUpdateDrawWords)
{
SMWordBase wr = null;
if (dc.draggedItem.Image != null)
{
wr = new SMWordImage(this.Font, dc.draggedItem);
}
else
{
wr = new SMWordText(this.Font, dc.draggedItem);
}
wr.Evaluation = this.HasImmediateEvaluation ? MNEvaluationType.Immediate : MNEvaluationType.Lazy;
drawWords.Add(wr);
drawWordsModified = true;
return(true);
}
return(false);
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <param name="textBounds"></param>
/// <param name="drawWords"></param>
/// <param name="control"></param>
/// <param name="RunningLine"></param>
/// <param name="Columns">Value -1 means, that no paging is done, normaly columns are 1,2,3...</param>
/// <param name="ColumnSeparatorWidth"></param>
/// <param name="PageCount"></param>
/// <returns></returns>
public static SMRichLayout RecalculateWordsLayout(MNPageContext context, Rectangle textBounds, List <SMWordBase> drawWords, SMControl control, SMRunningLine RunningLine,
int Columns)
{
textBounds.X = 0;
textBounds.Y = 0;
float lineY = textBounds.Y;
float lineX = textBounds.X;
float lineEnd = textBounds.Right;
float lineHeight = 0f;
float lineWidth = textBounds.Width;
float columnWidth = textBounds.Width;
int lineNo = 0;
int columnNo = 0;
int pageNo = 0;
int rightX = textBounds.X;
bool writeLineNo = false;
bool isNewLine = false;
bool isNewColumn = false;
SMWordLine currLine = new SMWordLine();
SMRichLayout richLayout = new SMRichLayout();
richLayout.Lines = new List <SMWordLine>();
richLayout.Lines.Add(currLine);
richLayout.DropablesCount = 0;
//context.g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
if (Columns > 1)
{
columnWidth = textBounds.Width / Columns;
lineWidth = textBounds.Width / Columns - control.ContentPadding.Left - control.ContentPadding.Right;
lineX = textBounds.X + columnNo * columnWidth + control.ContentPadding.Left;
lineEnd = lineX + lineWidth;
}
else
{
columnWidth = textBounds.Width;
lineWidth = textBounds.Width - control.ContentPadding.Left - control.ContentPadding.Right;
lineX = textBounds.X + control.ContentPadding.Left;
lineEnd = lineX + lineWidth;
}
float bottom = textBounds.Bottom;
bool isSpaceText = false;
int startsWithParentheses = 0;
bool isNewPage = false;
// first placement of word tokens
foreach (SMWordBase wt in drawWords)
{
isSpaceText = false;
writeLineNo = true;
isNewLine = false;
isNewColumn = false;
isNewPage = false;
startsWithParentheses = 0;
if (wt is SMWordSpecial)
{
SMWordSpecial spwt = (SMWordSpecial)wt;
if (spwt.Type == SMWordSpecialType.Newline)
{
isNewLine = true;
writeLineNo = false;
}
else if (spwt.Type == SMWordSpecialType.NewColumn)
{
isNewLine = false;
writeLineNo = false;
isNewColumn = true;
}
else if (spwt.Type == SMWordSpecialType.HorizontalLine)
{
wt.rect.Width = lineEnd - lineX - 1;
wt.rect.Height = 20;
}
else if (spwt.Type == SMWordSpecialType.NewPage)
{
isNewPage = true;
writeLineNo = false;
}
}
else if (wt is SMWordToken)
{
SMWordToken wtk = (SMWordToken)wt;
if (wtk.Cardinality == SMConnectionCardinality.One || wtk.Editable)
{
richLayout.DropablesCount++;
}
string s = wtk.GetCurrentText();
wt.rect.Size = context.g.MeasureString(s, wtk.Font.Font, textBounds.Width, StringFormat.GenericTypographic);
}
else if (wt is SMWordText)
{
SMWordText wtt = wt as SMWordText;
if (wtt.Draggable != SMDragResponse.None && control.Draggable != wtt.Draggable)
{
control.Draggable = wtt.Draggable;
}
if (wtt.text.StartsWith("\"") || wtt.text.StartsWith("\u201c"))
{
SizeF sf = context.g.MeasureString("\u201c", wtt.Font.Font, textBounds.Width, StringFormat.GenericTypographic);
startsWithParentheses = (int)sf.Width;
}
if (wtt.text.Equals(" "))
{
wtt.rect.Size = context.g.MeasureString(wtt.text, wtt.Font.Font);
isSpaceText = true;
}
else
{
wtt.rect.Size = context.g.MeasureString(wtt.text, wtt.Font.Font, textBounds.Width, StringFormat.GenericTypographic);
}
}
else if (wt is SMWordImage)
{
SMWordImage wti = wt as SMWordImage;
wti.rect.Size = wti.imageSize;
}
if (writeLineNo && !control.Autosize)
{
if ((lineX + wt.rect.Width > lineEnd) || RunningLine == SMRunningLine.SingleWord)
{
if (currLine.Count > 0)
{
isNewLine = true;
}
}
}
if (isNewLine)
{
if (currLine.Count == 0)
{
lineY += lineHeight * control.Paragraph.LineSpacing / 2;
}
else
{
lineY += lineHeight * control.Paragraph.LineSpacing;
}
currLine = new SMWordLine();
richLayout.Lines.Add(currLine);
lineHeight = context.g.MeasureString("M", control.GetUsedFont()).Height / 2;
lineNo++;
if (Columns != -1 && !control.Autosize)
{
if (lineY + lineHeight > textBounds.Bottom)
{
isNewColumn = true;
}
}
}
if (isNewPage)
{
lineNo = 0;
columnNo = 0;
pageNo++;
lineY = textBounds.Top;
}
if (isNewColumn)
{
columnNo++;
lineNo = 0;
if (columnNo >= Columns)
{
pageNo++;
columnNo = 0;
}
lineY = textBounds.Top;
}
if (isNewLine || isNewColumn || isNewPage)
{
lineX = textBounds.X + columnNo * columnWidth + control.ContentPadding.Left;
lineEnd = lineX + lineWidth;
}
if (writeLineNo)
{
if (currLine.Count == 0 && startsWithParentheses > 0)
{
wt.rect.X -= startsWithParentheses;
lineX -= startsWithParentheses;
}
if (currLine.Count > 0 || !isSpaceText)
{
currLine.Add(wt);
wt.LineNo = lineNo;
wt.ColumnNo = columnNo;
wt.PageNo = pageNo;
wt.rect.Location = new PointF(lineX, lineY);
lineX += wt.rect.Width;
rightX = Math.Max(rightX, (int)lineX);
}
lineHeight = Math.Max(lineHeight, wt.rect.Height);
writeLineNo = false;
}
}
lineY += lineHeight * control.Paragraph.LineSpacing;
// vertical alignment
AdjustVerticaly(textBounds, richLayout.Lines, control.GetVerticalAlign());
// horizontal aligment
AdjustLinesHorizontaly((int)lineWidth, control.GetHorizontalAlign(), richLayout.Lines);
richLayout.Pages = pageNo + 1;
richLayout.bottomY = (int)lineY + 1;
richLayout.rightX = rightX + 1;
return(richLayout);
}