diff options
Diffstat (limited to 'src/main/java/com/kitfox/svg/Gradient.java')
| -rw-r--r-- | src/main/java/com/kitfox/svg/Gradient.java | 182 |
1 files changed, 115 insertions, 67 deletions
diff --git a/src/main/java/com/kitfox/svg/Gradient.java b/src/main/java/com/kitfox/svg/Gradient.java index 5cd17e9..8901930 100644 --- a/src/main/java/com/kitfox/svg/Gradient.java +++ b/src/main/java/com/kitfox/svg/Gradient.java @@ -33,17 +33,14 @@ *
* Created on January 26, 2004, 3:25 AM
*/
-
package com.kitfox.svg;
-import java.net.*;
-import java.util.*;
-import java.awt.geom.*;
-import java.awt.*;
-
-import com.kitfox.svg.xml.*;
-import java.io.BufferedReader;
-import java.io.IOException;
+import com.kitfox.svg.xml.StyleAttribute;
+import java.awt.Color;
+import java.awt.geom.AffineTransform;
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Iterator;
import java.util.logging.Level;
import java.util.logging.Logger;
@@ -53,34 +50,37 @@ import java.util.logging.Logger; */
abstract public class Gradient extends FillElement
{
-
+ public static final String TAG_NAME = "gradient";
+
public static final int SM_PAD = 0;
public static final int SM_REPEAT = 1;
public static final int SM_REFLECT = 2;
-
int spreadMethod = SM_PAD;
-
public static final int GU_OBJECT_BOUNDING_BOX = 0;
public static final int GU_USER_SPACE_ON_USE = 1;
-
protected int gradientUnits = GU_OBJECT_BOUNDING_BOX;
-
//Either this gradient contains a list of stops, or it will take it's
// stops from the referenced gradient
ArrayList stops = new ArrayList();
URI stopRef = null;
-// Gradient stopRef = null;
-
protected AffineTransform gradientTransform = null;
-
+
//Cache arrays of stop values here
float[] stopFractions;
Color[] stopColors;
- /** Creates a new instance of Gradient */
- public Gradient() {
+ /**
+ * Creates a new instance of Gradient
+ */
+ public Gradient()
+ {
}
-
+
+ public String getTagName()
+ {
+ return TAG_NAME;
+ }
+
/**
* Called after the start element but before the end element to indicate
* each child tag that has been processed
@@ -89,70 +89,97 @@ abstract public class Gradient extends FillElement {
super.loaderAddChild(helper, child);
- if (!(child instanceof Stop)) return;
- appendStop((Stop)child);
+ if (!(child instanceof Stop))
+ {
+ return;
+ }
+ appendStop((Stop) child);
}
protected void build() throws SVGException
{
super.build();
-
+
StyleAttribute sty = new StyleAttribute();
String strn;
-
+
if (getPres(sty.setName("spreadMethod")))
{
strn = sty.getStringValue().toLowerCase();
- if (strn.equals("repeat")) spreadMethod = SM_REPEAT;
- else if (strn.equals("reflect")) spreadMethod = SM_REFLECT;
- else spreadMethod = SM_PAD;
+ if (strn.equals("repeat"))
+ {
+ spreadMethod = SM_REPEAT;
+ } else if (strn.equals("reflect"))
+ {
+ spreadMethod = SM_REFLECT;
+ } else
+ {
+ spreadMethod = SM_PAD;
+ }
}
if (getPres(sty.setName("gradientUnits")))
{
strn = sty.getStringValue().toLowerCase();
- if (strn.equals("userspaceonuse")) gradientUnits = GU_USER_SPACE_ON_USE;
- else gradientUnits = GU_OBJECT_BOUNDING_BOX;
+ if (strn.equals("userspaceonuse"))
+ {
+ gradientUnits = GU_USER_SPACE_ON_USE;
+ } else
+ {
+ gradientUnits = GU_OBJECT_BOUNDING_BOX;
+ }
}
- if (getPres(sty.setName("gradientTransform"))) gradientTransform = parseTransform(sty.getStringValue());
+ if (getPres(sty.setName("gradientTransform")))
+ {
+ gradientTransform = parseTransform(sty.getStringValue());
+ }
//If we still don't have one, set it to identity
- if (gradientTransform == null) gradientTransform = new AffineTransform();
+ if (gradientTransform == null)
+ {
+ gradientTransform = new AffineTransform();
+ }
+
-
//Check to see if we're using our own stops or referencing someone else's
if (getPres(sty.setName("xlink:href")))
{
- try {
+ try
+ {
stopRef = sty.getURIValue(getXMLBase());
//System.err.println("Gradient: " + sty.getStringValue() + ", " + getXMLBase() + ", " + src);
// URI src = getXMLBase().resolve(href);
// stopRef = (Gradient)diagram.getUniverse().getElement(src);
- }
- catch (Exception e)
+ } catch (Exception e)
{
throw new SVGException("Could not resolve relative URL in Gradient: " + sty.getStringValue() + ", " + getXMLBase(), e);
}
}
}
-
+
public float[] getStopFractions()
{
if (stopRef != null)
{
- Gradient grad = (Gradient)diagram.getUniverse().getElement(stopRef);
+ Gradient grad = (Gradient) diagram.getUniverse().getElement(stopRef);
return grad.getStopFractions();
}
- if (stopFractions != null) return stopFractions;
+ if (stopFractions != null)
+ {
+ return stopFractions;
+ }
stopFractions = new float[stops.size()];
int idx = 0;
for (Iterator it = stops.iterator(); it.hasNext();)
{
- Stop stop = (Stop)it.next();
+ Stop stop = (Stop) it.next();
float val = stop.offset;
- if (idx != 0 && val < stopFractions[idx - 1]) val = stopFractions[idx - 1];
+ if (idx != 0 && val < stopFractions[idx - 1])
+ {
+ val = stopFractions[idx - 1];
+ }
stopFractions[idx++] = val;
}
@@ -163,44 +190,53 @@ abstract public class Gradient extends FillElement {
if (stopRef != null)
{
- Gradient grad = (Gradient)diagram.getUniverse().getElement(stopRef);
+ Gradient grad = (Gradient) diagram.getUniverse().getElement(stopRef);
return grad.getStopColors();
}
- if (stopColors != null) return stopColors;
+ if (stopColors != null)
+ {
+ return stopColors;
+ }
stopColors = new Color[stops.size()];
int idx = 0;
for (Iterator it = stops.iterator(); it.hasNext();)
{
- Stop stop = (Stop)it.next();
+ Stop stop = (Stop) it.next();
int stopColorVal = stop.color.getRGB();
- Color stopColor = new Color((stopColorVal >> 16) & 0xff, (stopColorVal >> 8) & 0xff, stopColorVal & 0xff, clamp((int)(stop.opacity * 255), 0, 255));
+ Color stopColor = new Color((stopColorVal >> 16) & 0xff, (stopColorVal >> 8) & 0xff, stopColorVal & 0xff, clamp((int) (stop.opacity * 255), 0, 255));
stopColors[idx++] = stopColor;
}
return stopColors;
}
-
+
public void setStops(Color[] colors, float[] fractions)
{
if (colors.length != fractions.length)
{
throw new IllegalArgumentException();
}
-
+
this.stopColors = colors;
this.stopFractions = fractions;
stopRef = null;
}
-
+
private int clamp(int val, int min, int max)
{
- if (val < min) return min;
- if (val > max) return max;
+ if (val < min)
+ {
+ return min;
+ }
+ if (val > max)
+ {
+ return max;
+ }
return val;
}
-
+
public void setStopRef(URI grad)
{
stopRef = grad;
@@ -212,8 +248,9 @@ abstract public class Gradient extends FillElement }
/**
- * Updates all attributes in this diagram associated with a time event.
- * Ie, all attributes with track information.
+ * Updates all attributes in this diagram associated with a time event. Ie,
+ * all attributes with track information.
+ *
* @return - true if this node has changed state as a result of the time
* update
*/
@@ -226,28 +263,40 @@ abstract public class Gradient extends FillElement StyleAttribute sty = new StyleAttribute();
boolean shapeChange = false;
String strn;
-
+
if (getPres(sty.setName("spreadMethod")))
{
int newVal;
strn = sty.getStringValue().toLowerCase();
- if (strn.equals("repeat")) newVal = SM_REPEAT;
- else if (strn.equals("reflect")) newVal = SM_REFLECT;
- else newVal = SM_PAD;
+ if (strn.equals("repeat"))
+ {
+ newVal = SM_REPEAT;
+ } else if (strn.equals("reflect"))
+ {
+ newVal = SM_REFLECT;
+ } else
+ {
+ newVal = SM_PAD;
+ }
if (spreadMethod != newVal)
{
spreadMethod = newVal;
stateChange = true;
}
}
-
+
if (getPres(sty.setName("gradientUnits")))
{
int newVal;
strn = sty.getStringValue().toLowerCase();
- if (strn.equals("userspaceonuse")) newVal = GU_USER_SPACE_ON_USE;
- else newVal = GU_OBJECT_BOUNDING_BOX;
+ if (strn.equals("userspaceonuse"))
+ {
+ newVal = GU_USER_SPACE_ON_USE;
+ } else
+ {
+ newVal = GU_OBJECT_BOUNDING_BOX;
+ }
if (newVal != gradientUnits)
{
gradientUnits = newVal;
@@ -265,21 +314,21 @@ abstract public class Gradient extends FillElement }
}
-
+
//Check to see if we're using our own stops or referencing someone else's
if (getPres(sty.setName("xlink:href")))
{
- try {
+ try
+ {
URI newVal = sty.getURIValue(getXMLBase());
if ((newVal == null && stopRef != null) || !newVal.equals(stopRef))
{
stopRef = newVal;
stateChange = true;
}
- }
- catch (Exception e)
+ } catch (Exception e)
{
- Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
+ Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
"Could not parse xlink:href", e);
}
}
@@ -287,7 +336,7 @@ abstract public class Gradient extends FillElement //Check stops, if any
for (Iterator it = stops.iterator(); it.hasNext();)
{
- Stop stop = (Stop)it.next();
+ Stop stop = (Stop) it.next();
if (stop.updateTime(curTime))
{
stateChange = true;
@@ -295,8 +344,7 @@ abstract public class Gradient extends FillElement stopColors = null;
}
}
-
+
return stateChange;
}
-
}
|