import java.awt.Color;
import java.awt.Graphics;
-import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
/**
if (featureRenderer.getTransparency() != 1f)
{
g = goff;
- if (defaultColour != null)
+ Color c = (defaultColour == null ? Color.white : defaultColour);
+ if (Platform.isJS())
{
- offscreenImage.setRGB(0, 0, defaultColour.getRGB());
+ // Clear the HTML5 canvas color.
+ // otherwise we get a smearing.
+ // For whatever reason, this is necessary BH 2019.10.01.
+ g.setColor(c);
+ g.fillRect(0, 0, 1, 1);
}
+ offscreenImage.setRGB(0, 0, c.getRGB());
}
Color c = featureRenderer.findFeatureColour(seq, column + 1, g);
if (g != null)
{
- c = new Color(offscreenImage.getRGB(0, 0));
- }
- return c;
- }
-
- public int findFeatureColourInt(int defaultColour, SequenceI seq,
- int column)
- {
- // if (noFeaturesDisplayed())
- // {
- // return defaultColour;
- // }
-
- Graphics2D g = null;
-
- /*
- * if transparency applies, provide a notional 1x1 graphics context
- * that has been primed with the default colour
- */
- if (featureRenderer.getTransparency() != 1f)
- {
- g = (Graphics2D) goff;
if (Platform.isJS())
{
- // Clear the HTML5 canvas color.
- // otherwise we get a smearing.
- // For whatever reason, this is necessary BH 2019.10.01.
- g.setColor(Color.white);
- g.fillRect(0, 0, 1, 1);
- }
- if (defaultColour != 0)
- {
- offscreenImage.setRGB(0, 0, defaultColour);
+ /*
+ * for JavaScript the pixel itself
+ * is a resource that needs to be recreated in getRGB(0,0)
+ */
+ offscreenImage.flush();
}
+ c = new Color(offscreenImage.getRGB(0, 0));
}
- Color c = featureRenderer.findFeatureColour(seq, column + 1, g);
- if (c == null)
- {
- return defaultColour;
- }
- if (g == null)
- {
- return c.getRGB();
- }
- if (Platform.isJS())
- {
- // BH 2019.10.01 because for JavaScript the pixel itself
- // is a resource that needs to be recreated in getRGB(0,0)
- offscreenImage.flush();
- }
- return offscreenImage.getRGB(0, 0);
+
+ return c;
}
+
/**
* Answers true if feature display is turned off, or there are no features
* configured to be visible