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TabbedPane: fixed clipping title if "more tabs" button is used (issue #40)

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This commit is contained in:
Karl Tauber
2020-10-15 13:16:21 +02:00
parent c0408045ef
commit 1f5e08fdc6
2 changed files with 52 additions and 1 deletions
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15
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java
View File

@@ -71,6 +71,7 @@ import javax.swing.text.View;
import com.formdev.flatlaf.FlatLaf;
import com.formdev.flatlaf.util.Animator;
import com.formdev.flatlaf.util.CubicBezierEasing;
import com.formdev.flatlaf.util.JavaCompatibility;
import com.formdev.flatlaf.util.UIScale;
/**
@@ -497,6 +498,20 @@ public class FlatTabbedPaneUI
return;
}
// clip title if "more tabs" button is used
// (normally this is done by invoker, but fails in this case)
if( hiddenTabsNavigation == MORE_TABS_BUTTON &&
tabViewport != null &&
(tabPlacement == TOP || tabPlacement == BOTTOM) )
{
Rectangle viewRect = tabViewport.getViewRect();
viewRect.width -= 4; // subtract width of cropped edge
if( !viewRect.contains( textRect ) ) {
Rectangle r = viewRect.intersection( textRect );
title = JavaCompatibility.getClippedString( null, metrics, title, r.width );
}
}
// plain text
Color color;
if( tabPane.isEnabled() && tabPane.isEnabledAt( tabIndex ) ) {

38
flatlaf-core/src/main/java/com/formdev/flatlaf/util/JavaCompatibility.java
View File

@@ -16,6 +16,7 @@
package com.formdev.flatlaf.util;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.lang.reflect.InvocationTargetException;
@@ -27,7 +28,7 @@ import com.formdev.flatlaf.FlatLaf;
/**
* Provides Java version compatibility methods.
*
* <p>
* WARNING: This is private API and may change.
*
* @author Karl Tauber
@@ -35,10 +36,12 @@ import com.formdev.flatlaf.FlatLaf;
public class JavaCompatibility
{
private static Method drawStringUnderlineCharAtMethod;
private static Method getClippedStringMethod;
/**
* Java 8: sun.swing.SwingUtilities2.drawStringUnderlineCharAt( JComponent c,
* Graphics g, String text, int underlinedIndex, int x, int y )
* <br>
* Java 9: javax.swing.plaf.basic.BasicGraphicsUtils.drawStringUnderlineCharAt( JComponent c,
* Graphics2D g, String string, int underlinedIndex, float x, float y )
*/
@@ -71,4 +74,37 @@ public class JavaCompatibility
throw new RuntimeException( ex );
}
}
/**
* Java 8: sun.swing.SwingUtilities2.clipStringIfNecessary( JComponent c,
* FontMetrics fm, String string, int availTextWidth )
* <br>
* Java 9: javax.swing.plaf.basic.BasicGraphicsUtils.getClippedString( JComponent c,
* FontMetrics fm, String string, int availTextWidth )
*/
public static String getClippedString( JComponent c, FontMetrics fm, String string, int availTextWidth ) {
synchronized( JavaCompatibility.class ) {
if( getClippedStringMethod == null ) {
try {
Class<?> cls = Class.forName( SystemInfo.isJava_9_orLater
? "javax.swing.plaf.basic.BasicGraphicsUtils"
: "sun.swing.SwingUtilities2" );
getClippedStringMethod = cls.getMethod( SystemInfo.isJava_9_orLater
? "getClippedString"
: "clipStringIfNecessary",
new Class[] { JComponent.class, FontMetrics.class, String.class, int.class } );
} catch( Exception ex ) {
Logger.getLogger( FlatLaf.class.getName() ).log( Level.SEVERE, null, ex );
throw new RuntimeException( ex );
}
}
}
try {
return (String) getClippedStringMethod.invoke( null, c, fm, string, availTextWidth );
} catch( IllegalAccessException | IllegalArgumentException | InvocationTargetException ex ) {
Logger.getLogger( FlatLaf.class.getName() ).log( Level.SEVERE, null, ex );
throw new RuntimeException( ex );
}
}
}