public void AddLeader(int leaderPattern, int leaderLengthMinimum,
int leaderLengthOptimum, int leaderLengthMaximum,
int ruleStyle, int ruleThickness,
int leaderPatternWidth, int leaderAlignment)
{
WordArea leaderPatternArea;
int leaderLength = 0;
char dotIndex = '.';
int dotWidth =
currentFontState.GetWidth(currentFontState.MapCharacter(dotIndex));
char whitespaceIndex = ' ';
int whitespaceWidth =
currentFontState.GetWidth(currentFontState.MapCharacter(whitespaceIndex));
int remainingWidth = this.getRemainingWidth();
if ((remainingWidth <= leaderLengthOptimum)
|| (remainingWidth <= leaderLengthMaximum))
{
leaderLength = remainingWidth;
}
else if ((remainingWidth > leaderLengthOptimum)
&& (remainingWidth > leaderLengthMaximum))
{
leaderLength = leaderLengthMaximum;
}
else if ((leaderLengthOptimum > leaderLengthMaximum)
&& (leaderLengthOptimum < remainingWidth))
{
leaderLength = leaderLengthOptimum;
}
if (leaderLength <= 0)
{
return;
}
switch (leaderPattern)
{
case LeaderPattern.SPACE:
InlineSpace spaceArea = new InlineSpace(leaderLength);
pendingAreas.Add(spaceArea);
break;
case LeaderPattern.RULE:
LeaderArea leaderArea = new LeaderArea(fontState, red, green,
blue, "", leaderLength,
leaderPattern,
ruleThickness, ruleStyle);
leaderArea.setYOffset(placementOffset);
pendingAreas.Add(leaderArea);
break;
case LeaderPattern.DOTS:
if (leaderPatternWidth < dotWidth)
{
leaderPatternWidth = 0;
}
if (leaderPatternWidth == 0)
{
pendingAreas.Add(this.buildSimpleLeader(dotIndex,
leaderLength));
}
else
{
if (leaderAlignment == LeaderAlignment.REFERENCE_AREA)
{
int spaceBeforeLeader =
this.getLeaderAlignIndent(leaderLength,
leaderPatternWidth);
if (spaceBeforeLeader != 0)
{
pendingAreas.Add(new InlineSpace(spaceBeforeLeader,
false));
pendingWidth += spaceBeforeLeader;
leaderLength -= spaceBeforeLeader;
}
}
InlineSpace spaceBetweenDots =
new InlineSpace(leaderPatternWidth - dotWidth, false);
leaderPatternArea = new WordArea(currentFontState, this.red,
this.green, this.blue,
".", dotWidth);
leaderPatternArea.setYOffset(placementOffset);
int dotsFactor =
(int)Math.Floor(((double)leaderLength)
/ ((double)leaderPatternWidth));
for (int i = 0; i < dotsFactor; i++)
{
pendingAreas.Add(leaderPatternArea);
pendingAreas.Add(spaceBetweenDots);
}
pendingAreas.Add(new InlineSpace(leaderLength
- dotsFactor
* leaderPatternWidth));
}
break;
case LeaderPattern.USECONTENT:
FonetDriver.ActiveDriver.FireFonetError(
"leader-pattern=\"use-content\" not supported by this version of FO.NET");
return;
}
pendingWidth += leaderLength;
prev = TEXT;
}
/**
* render leader area
*
* @param area area to render
*/
public void RenderLeaderArea(LeaderArea area) {
int rx = this.currentXPosition;
int ry = this.currentYPosition;
int w = area.getContentWidth();
int h = area.GetHeight();
int th = area.getRuleThickness();
int st = area.getRuleStyle();
// checks whether thickness is = 0, because of bug in pdf (or where?),
// a line with thickness 0 is still displayed
if (th != 0) {
switch (st) {
case RuleStyle.DOUBLE:
AddLine(rx, ry, rx + w, ry, th/3, st,
new PdfColor(area.getRed(), area.getGreen(),
area.getBlue()));
AddLine(rx, ry + (2*th/3), rx + w, ry + (2*th/3),
th/3, st,
new PdfColor(area.getRed(), area.getGreen(),
area.getBlue()));
break;
case RuleStyle.GROOVE:
AddLine(rx, ry, rx + w, ry, th/2, st,
new PdfColor(area.getRed(), area.getGreen(),
area.getBlue()));
AddLine(rx, ry + (th/2), rx + w, ry + (th/2), th/2, st,
new PdfColor(255, 255, 255));
break;
case RuleStyle.RIDGE:
AddLine(rx, ry, rx + w, ry, th/2, st,
new PdfColor(255, 255, 255));
AddLine(rx, ry + (th/2), rx + w, ry + (th/2), th/2, st,
new PdfColor(area.getRed(), area.getGreen(),
area.getBlue()));
break;
default:
AddLine(rx, ry, rx + w, ry, th, st,
new PdfColor(area.getRed(), area.getGreen(),
area.getBlue()));
break;
}
this.currentXPosition += area.getContentWidth();
this.currentYPosition += th;
}
}
