This implements all of javax.swing.text.LabelView.
2005-10-05 Roman Kennke <[EMAIL PROTECTED]>
* javax/swing/text/LabelView.java
(LabelView): Implemented the constructor.
(setPropertiesFromAttributes): New method.
(changedUpdate): New method.
(getBackground): New method.
(setBackground): New method.
(getForeground): New method.
(getFont): New method.
(getFontMetrics): New method.
(isUnderline): New method.
(setUnderline): New method.
(isSubscript): New method.
(setSubscript): New method.
(isSuperscript): New method.
(setSuperscript): New method.
(isStrikeThrough): New method.
(setStrikeThrough): New method.
/Roman
Index: javax/swing/text/LabelView.java
===================================================================
RCS file: /cvsroot/classpath/classpath/javax/swing/text/LabelView.java,v
retrieving revision 1.1
diff -u -r1.1 LabelView.java
--- javax/swing/text/LabelView.java 29 Jul 2005 10:47:16 -0000 1.1
+++ javax/swing/text/LabelView.java 5 Oct 2005 14:59:48 -0000
@@ -38,10 +38,57 @@
package javax.swing.text;
-// TODO: Implement this class.
-public class LabelView
- extends GlyphView
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Shape;
+
+import javax.swing.event.DocumentEvent;
+
+/**
+ * A [EMAIL PROTECTED] GlyphView} that caches the textattributes for most effective
+ * rendering.
+ *
+ * @author Roman Kennke ([EMAIL PROTECTED])
+ */
+public class LabelView extends GlyphView
{
+
+ /**
+ * The background color.
+ */
+ Color background;
+
+ /**
+ * The foreground color.
+ */
+ Color foreground;
+
+ /**
+ * The background color.
+ */
+ Font font;
+
+ /**
+ * The strikethrough flag.
+ */
+ boolean strikeThrough;
+
+ /**
+ * The underline flag.
+ */
+ boolean underline;
+
+ /**
+ * The subscript flag.
+ */
+ boolean subscript;
+
+ /**
+ * The superscript flag.
+ */
+ boolean superscript;
+
/**
* Creates a new <code>GlyphView</code> for the given <code>Element</code>.
*
@@ -50,5 +97,194 @@
public LabelView(Element element)
{
super(element);
+ setPropertiesFromAttributes();
+ }
+
+ /**
+ * Loads the properties of this label view from the element's text
+ * attributes. This method is called from the constructor and the
+ * [EMAIL PROTECTED] #changedUpdate} method
+ */
+ protected void setPropertiesFromAttributes()
+ {
+ Element el = getElement();
+ AttributeSet atts = el.getAttributes();
+ background = StyleConstants.getBackground(atts);
+ foreground = StyleConstants.getForeground(atts);
+ strikeThrough = StyleConstants.isStrikeThrough(atts);
+ subscript = StyleConstants.isSubscript(atts);
+ superscript = StyleConstants.isSuperscript(atts);
+ underline = StyleConstants.isUnderline(atts);
+
+ // Determine the font.
+ String family = StyleConstants.getFontFamily(atts);
+ int size = StyleConstants.getFontSize(atts);
+ int style = Font.PLAIN;
+ if (StyleConstants.isBold(atts))
+ style |= Font.BOLD;
+ if (StyleConstants.isItalic(atts))
+ style |= Font.ITALIC;
+ font = new Font(family, style, size);
+ }
+
+ /**
+ * Receives notification when text attributes change in the chunk of
+ * text that this view is responsible for. This simply calls
+ * [EMAIL PROTECTED] #setPropertiesFromAttributes()}.
+ *
+ * @param e the document event
+ * @param a the allocation of this view
+ * @param vf the view factory to use for creating new views
+ */
+ public void changedUpdate(DocumentEvent e, Shape a, ViewFactory vf)
+ {
+ setPropertiesFromAttributes();
+ }
+
+ /**
+ * Returns the background color for the glyphs.
+ *
+ * @return the background color for the glyphs
+ */
+ public Color getBackground()
+ {
+ return background;
+ }
+
+ /**
+ * Sets the background color for the glyphs. A value of <code>null</code>
+ * means the background of the parent view should shine through.
+ *
+ * @param bg the background to set or <code>null</code>
+ *
+ * @since 1.5
+ */
+ protected void setBackground(Color bg)
+ {
+ background = bg;
+ }
+
+ /**
+ * Returns the foreground color for the glyphs.
+ *
+ * @return the foreground color for the glyphs
+ */
+ public Color getForeground()
+ {
+ return foreground;
+ }
+
+ /**
+ * Returns the font for the glyphs.
+ *
+ * @return the font for the glyphs
+ */
+ public Font getFont()
+ {
+ return font;
+ }
+
+ /**
+ * Returns the font metrics of the current font.
+ *
+ * @return the font metrics of the current font
+ *
+ * @deprecated this is not used anymore
+ */
+ protected FontMetrics getFontMetrics()
+ {
+ return getContainer().getGraphics().getFontMetrics(font);
+ }
+
+ /**
+ * Returns <code>true</code> if the glyphs are rendered underlined,
+ * <code>false</code> otherwise.
+ *
+ * @return <code>true</code> if the glyphs are rendered underlined,
+ * <code>false</code> otherwise
+ */
+ public boolean isUnderline()
+ {
+ return underline;
+ }
+
+ /**
+ * Sets the underline flag.
+ *
+ * @param flag <code>true</code> if the glyphs are rendered underlined,
+ * <code>false</code> otherwise
+ */
+ protected void setUnderline(boolean flag)
+ {
+ underline = flag;
+ }
+
+ /**
+ * Returns <code>true</code> if the glyphs are rendered as subscript,
+ * <code>false</code> otherwise.
+ *
+ * @return <code>true</code> if the glyphs are rendered as subscript,
+ * <code>false</code> otherwise
+ */
+ public boolean isSubscript()
+ {
+ return subscript;
+ }
+
+ /**
+ * Sets the subscript flag.
+ *
+ * @param flag <code>true</code> if the glyphs are rendered as subscript,
+ * <code>false</code> otherwise
+ */
+ protected void setSubscript(boolean flag)
+ {
+ subscript = flag;
+ }
+
+ /**
+ * Returns <code>true</code> if the glyphs are rendered as superscript,
+ * <code>false</code> otherwise.
+ *
+ * @return <code>true</code> if the glyphs are rendered as superscript,
+ * <code>false</code> otherwise
+ */
+ public boolean isSuperscript()
+ {
+ return superscript;
+ }
+
+ /**
+ * Sets the superscript flag.
+ *
+ * @param flag <code>true</code> if the glyphs are rendered as superscript,
+ * <code>false</code> otherwise
+ */
+ protected void setSuperscript(boolean flag)
+ {
+ superscript = flag;
+ }
+
+ /**
+ * Returns <code>true</code> if the glyphs are rendered strike-through,
+ * <code>false</code> otherwise.
+ *
+ * @return <code>true</code> if the glyphs are rendered strike-through,
+ * <code>false</code> otherwise
+ */
+ public boolean isStrikeThrough()
+ {
+ return strikeThrough;
+ }
+
+ /**
+ * Sets the strike-through flag.
+ *
+ * @param flag <code>true</code> if the glyphs are rendered strike-through,
+ * <code>false</code> otherwise
+ */
+ protected void setStrikeThrough(boolean flag)
+ {
+ strikeThrough = flag;
}
}_______________________________________________
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