Author: clopes
Date: 2011-08-02 14:44:51 -0700 (Tue, 02 Aug 2011)
New Revision: 26356
Modified:
cytoscapeweb/trunk/cytoscapeweb/src/org/cytoscapeweb/model/converters/PDFExporter.as
Log:
Fixed #2498: PDF and SVG: Line breaks in labels (PDF)
Modified:
cytoscapeweb/trunk/cytoscapeweb/src/org/cytoscapeweb/model/converters/PDFExporter.as
===================================================================
---
cytoscapeweb/trunk/cytoscapeweb/src/org/cytoscapeweb/model/converters/PDFExporter.as
2011-08-02 21:20:25 UTC (rev 26355)
+++
cytoscapeweb/trunk/cytoscapeweb/src/org/cytoscapeweb/model/converters/PDFExporter.as
2011-08-02 21:44:51 UTC (rev 26356)
@@ -322,6 +322,14 @@
}
private function drawLabels(pdf:PDF, data:DataList):void {
+ var hAnchor:String = Anchors.CENTER;
+ var vAnchor:String = Anchors.MIDDLE;
+ var xOffset:Number = 0;
+ var yOffset:Number = 0;
+ const HPAD:Number = 2 * _scale;
+ const VPAD:Number = 2 * _scale;
+ var p:Point;
+
for each (var d:DataSprite in data) {
var lbl:TextSprite = d.props.label;
@@ -331,7 +339,8 @@
if (text == null || text === "" || lblSize < 1) continue;
var field:TextField = lbl.textField;
-
+ var lines:Array = text.split("\r");
+
// ATTENTION!!!
// It seems that Flash does not convert points to pixels
correctly.
// See: - http://alarmingdevelopment.org/?p=66
@@ -341,39 +350,46 @@
// in the generated PDF:
// I found out that Arial's height is usually 28% smaller
than the font size.
// Another possible solution would be to embed fonts, but
it did not work for me.
- var textHeight:Number = lbl.size * 0.72;
- var textWidth:Number = field.textWidth;
+ var textHeight:Number = lbl.size * 0.72 * _scale;
+ var textWidth:Number = field.textWidth * _scale;
// Get the Global label point (relative to the stage):
- var p:Point = toImagePoint(new Point(lbl.x, lbl.y), lbl);
- var hAnchor:String = Anchors.CENTER;
- var vAnchor:String = Anchors.MIDDLE;
-
if (d is NodeSprite) {
+ // If node, calculate the label position from scratch
hAnchor =
_style.getValue(VisualProperties.NODE_LABEL_HANCHOR, d.data);
vAnchor =
_style.getValue(VisualProperties.NODE_LABEL_VANCHOR, d.data);
+ xOffset =
_style.getValue(VisualProperties.NODE_LABEL_XOFFSET, d.data) * _scale;
+ yOffset =
_style.getValue(VisualProperties.NODE_LABEL_YOFFSET, d.data) * _scale;
+
+ p = toImagePoint(new Point(d.x, d.y), d);
+ // Flare's label cordinates is relative to the label's
upper-left corner (x,y)=(0,0),
+ // but AlivePDF uses the bottom-left corner instead
(x,y)=(0,fonSize):
+ p.y += textHeight;
+
+ switch (hAnchor) {
+ case Anchors.LEFT: p.x += (HPAD + xOffset);
break;
+ case Anchors.CENTER: p.x -= (xOffset +
textWidth/2); break;
+ case Anchors.RIGHT: p.x -= (HPAD + xOffset +
textWidth); break;
+ }
+ switch (vAnchor) {
+ case Anchors.TOP:
+ p.y += (VPAD + yOffset + d.height/2);
+ break;
+ case Anchors.MIDDLE:
+ p.y -= (VPAD + yOffset +
(textHeight*lines.length)/2);
+ break;
+ case Anchors.BOTTOM:
+ p.y -= (VPAD + yOffset + d.height/2 +
textHeight*lines.length);
+ break;
+ }
+ } else {
+ // If edge, just get the actual label position--its
always middle-center!
+ p = toImagePoint(new Point(lbl.x, lbl.y), lbl);
+ p.x -= textWidth/2;
+ p.y += textHeight;
+ p.y -= (textHeight * lines.length/2);
}
- var hpad:Number = 2;
- switch (hAnchor) {
- case Anchors.LEFT: p.x += hpad * _scale; break;
- case Anchors.CENTER: p.x -= (textWidth/2)*_scale;
break;
- case Anchors.RIGHT: p.x -= (textWidth + hpad)*_scale;
break;
- }
- // Vertical anchor:
- // The label height is different from the real text
height, because
- // there is a margin between the text and the text field
border:
- var vpad:Number = 2;
- switch (vAnchor) {
- case Anchors.TOP: p.y += (field.height -
textHeight)/2 * _scale; break;
- case Anchors.MIDDLE: p.y -= textHeight/2 * _scale;
break;
- case Anchors.BOTTOM: p.y -= (vpad + textHeight) *
_scale; break;
- }
-
- // Flare's label cordinates is relative to the label's
upper-left corner (x,y)=(0,0),
- // but AlivePDF uses the bottom-left corner instead
(x,y)=(0,fonSize):
- p.y += textHeight*_scale;
-
var style:String = lbl.bold ?
(lbl.italic ? Style.BOLD_ITALIC :
Style.BOLD) :
(lbl.italic ? Style.ITALIC :
Style.NORMAL);
@@ -387,7 +403,12 @@
// TODO: set BOLD/ITALIC
pdf.textStyle(new RGBColor(lbl.color), lbl.alpha);
pdf.setFont(font, lblSize);
- pdf.addText(text, p.x, p.y);
+
+ for (var i:int = 0; i < lines.length; i++) {
+ var ln:String = lines[i];
+ var y:Number = p.y + textHeight * i;
+ pdf.addText(ln, p.x, y);
+ }
}
}
}
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