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Styling: support using simple references to UI defaults

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e.g. `mySlider.putClientProperty( "JComponent.style", "thumbColor: $TextField.background; thumbBorderColor: $Component.borderColor" );`
This commit is contained in:
Karl Tauber
2021-06-15 19:44:55 +02:00
parent edade93054
commit 0830c78728
1 changed files with 11 additions and 2 deletions
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13
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatStyleSupport.java
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@@ -21,6 +21,7 @@ import java.util.Map;
import java.util.Map.Entry;
import java.util.function.BiFunction;
import javax.swing.JComponent;
import javax.swing.UIManager;
import com.formdev.flatlaf.FlatClientProperties;
import com.formdev.flatlaf.FlatLaf;
import com.formdev.flatlaf.util.StringUtils;
@@ -45,6 +46,7 @@ public class FlatStyleSupport
* the function must return the old value
* @return map of old values modified by the given style, or {@code null}
* @throws IllegalArgumentException on syntax errors
* @throws ClassCastException if value type does not fit to expected type 
*/
public static Map<String, Object> parse( Map<String, Object> oldStyleValues,
String style, BiFunction<String, Object, Object> applyProperty ) throws IllegalArgumentException
@@ -82,8 +84,8 @@ public class FlatStyleSupport
throw new IllegalArgumentException( "missing value in '" + part + "'" );
// parse value string and convert it into binary value
Object val = FlatLaf.parseDefaultsValue( key, value );
Object oldValue = applyProperty.apply( key, val );
Object newValue = parseValue( key, value );
Object oldValue = applyProperty.apply( key, newValue );
// remember previous value
if( oldValues == null )
@@ -94,6 +96,13 @@ public class FlatStyleSupport
return oldValues;
}
private static Object parseValue( String key, String value ) {
if( value.startsWith( "$" ) )
return UIManager.get( value.substring( 1 ) );
return FlatLaf.parseDefaultsValue( key, value );
}
public static boolean hasStyle( JComponent c ) {
return getStyle( c ) != null;
}