modules/graphics/src/main/java/javafx/css/converter/DeriveSizeConverter.java

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rev 9240 : 8076423: JEP 253: Prepare JavaFX UI Controls & CSS APIs for Modularization


   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.javafx.css.parser;
  27 
  28 import com.sun.javafx.css.Size;
  29 import com.sun.javafx.css.SizeUnits;
  30 import com.sun.javafx.css.StyleConverterImpl;
  31 import javafx.css.ParsedValue;
  32 import javafx.scene.text.Font;
  33 
  34 /**
  35  * A type that combines two Size values.  The primary purpose of
  36  * this type is to handle "convert(size1, size2)" expressions in CSS.
  37  */
  38 public final class DeriveSizeConverter extends StyleConverterImpl<ParsedValue<Size, Size>[], Size> {
  39 
  40     // lazy, thread-safe instatiation
  41     private static class Holder {
  42         static final DeriveSizeConverter INSTANCE = new DeriveSizeConverter();
  43     }
  44 
  45     public static DeriveSizeConverter getInstance() {
  46         return Holder.INSTANCE;
  47     }
  48 
  49     private DeriveSizeConverter() {
  50         super();
  51     }
  52 
  53     @Override
  54     public Size convert(ParsedValue<ParsedValue<Size, Size>[], Size> value, Font font) {
  55         final ParsedValue<Size, Size>[] sizes = value.getValue();
  56         final double px1 = sizes[0].convert(font).pixels(font);
  57         final double px2 = sizes[1].convert(font).pixels(font);
  58         return new Size(px1 + px2, SizeUnits.PX);


   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package javafx.css.converter;
  27 
  28 import javafx.css.Size;
  29 import javafx.css.SizeUnits;
  30 import javafx.css.StyleConverter;
  31 import javafx.css.ParsedValue;
  32 import javafx.scene.text.Font;
  33 
  34 /**
  35  * A type that combines two Size values.  The primary purpose of
  36  * this type is to handle "convert(size1, size2)" expressions in CSS.
  37  */
  38 public final class DeriveSizeConverter extends StyleConverter<ParsedValue<Size, Size>[], Size> {
  39 
  40     // lazy, thread-safe instatiation
  41     private static class Holder {
  42         static final DeriveSizeConverter INSTANCE = new DeriveSizeConverter();
  43     }
  44 
  45     public static DeriveSizeConverter getInstance() {
  46         return Holder.INSTANCE;
  47     }
  48 
  49     private DeriveSizeConverter() {
  50         super();
  51     }
  52 
  53     @Override
  54     public Size convert(ParsedValue<ParsedValue<Size, Size>[], Size> value, Font font) {
  55         final ParsedValue<Size, Size>[] sizes = value.getValue();
  56         final double px1 = sizes[0].convert(font).pixels(font);
  57         final double px2 = sizes[1].convert(font).pixels(font);
  58         return new Size(px1 + px2, SizeUnits.PX);