plugins/ui-designer/src/com/intellij/uiDesigner/propertyInspector/properties/IntFieldProperty.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.intellij.uiDesigner.propertyInspector.properties;
  18
  19 import com.intellij.uiDesigner.propertyInspector.Property;
  20 import com.intellij.uiDesigner.propertyInspector.PropertyEditor;
  21 import com.intellij.uiDesigner.propertyInspector.PropertyRenderer;
  22 import com.intellij.uiDesigner.propertyInspector.editors.IntEditor;
  23 import com.intellij.uiDesigner.propertyInspector.renderers.LabelPropertyRenderer;
  24 import com.intellij.uiDesigner.radComponents.RadComponent;
  25 import com.intellij.util.ArrayUtil;
  26 import org.jetbrains.annotations.NonNls;
  27 import org.jetbrains.annotations.NotNull;
  28
  29 import java.lang.reflect.Method;
  30
  31 public final class IntFieldProperty extends Property<RadComponent, Integer> {
  32   private final LabelPropertyRenderer<Integer> myRenderer;
  33   private final IntEditor myEditor;
  34   @NotNull private final Property myParent;
  35   private final String myFieldName;
  36   private final Object myTemplateValue;
  37   @NonNls private static final String METHOD_CLONE = "clone";
  38
  39   public IntFieldProperty(@NotNull final Property parent, @NonNls final String fieldName, final int lowBoundary, final Object templateValue) {
  40     super(parent, fieldName);
  41     myParent = parent;
  42     myFieldName = fieldName;
  43     myTemplateValue = templateValue;
  44     myRenderer = new LabelPropertyRenderer<Integer>();
  45     myEditor = new IntEditor(lowBoundary);
  46   }
  47
  48   public Integer getValue(final RadComponent component) {
  49     //noinspection unchecked
  50     final Object parentValue = myParent.getValue(component);
  51     if (parentValue == null) return 0;
  52     try {
  53       return parentValue.getClass().getField(myFieldName).getInt(parentValue);
  54     }
  55     catch (Exception e) {
  56       throw new RuntimeException(e);
  57     }
  58   }
  59
  60   protected void setValueImpl(final RadComponent component,final Integer value) throws Exception{
  61     //noinspection unchecked
  62     Object parentValue = myParent.getValue(component);
  63     if (parentValue == null) {
  64       parentValue = myTemplateValue;
  65     }
  66     else {
  67       final Method method = parentValue.getClass().getMethod(METHOD_CLONE, ArrayUtil.EMPTY_CLASS_ARRAY);
  68       parentValue = method.invoke(parentValue);
  69     }
  70     parentValue.getClass().getField(myFieldName).setInt(parentValue, value.intValue());
  71     //noinspection unchecked
  72     myParent.setValue(component, parentValue);
  73   }
  74
  75   @NotNull
  76   public PropertyRenderer<Integer> getRenderer() {
  77     return myRenderer;
  78   }
  79
  80   public PropertyEditor<Integer> getEditor() {
  81     return myEditor;
  82   }
  83 }