plugins/ui-designer/src/com/intellij/uiDesigner/propertyInspector/renderers/SizePolicyRenderer.java

/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.intellij.uiDesigner.propertyInspector.renderers;

import com.intellij.uiDesigner.core.GridConstraints;
import com.intellij.uiDesigner.UIDesignerBundle;
import org.jetbrains.annotations.NotNull;

/**
 * @author Anton Katilin
 * @author Vladimir Kondratyev
 */
public final class SizePolicyRenderer extends LabelPropertyRenderer<Integer> {
  private final StringBuffer myBuffer;

  public SizePolicyRenderer(){
    myBuffer=new StringBuffer();
  }

  protected void customize(@NotNull final Integer value) {
    final int policy=value.intValue();
    myBuffer.setLength(0);

    if((policy & GridConstraints.SIZEPOLICY_CAN_SHRINK) != 0){
      myBuffer.append(UIDesignerBundle.message("property.can.shrink"));
    }
    if((policy & GridConstraints.SIZEPOLICY_CAN_GROW) != 0){
      if(myBuffer.length()>0){
        myBuffer.append(", ");
      }
      myBuffer.append(UIDesignerBundle.message("property.can.grow"));
    }
    if((policy & GridConstraints.SIZEPOLICY_WANT_GROW) != 0){
      if(myBuffer.length()>0){
        myBuffer.append(", ");
      }
      myBuffer.append(UIDesignerBundle.message("property.want.grow"));
    }

    if(policy==GridConstraints.SIZEPOLICY_FIXED){
      myBuffer.append(UIDesignerBundle.message("property.fixed"));
    }

    setText(myBuffer.substring(0, myBuffer.length())); // [jeka] important! do not use toString() on the StringBuffer that is reused
  }
}