plugins/ui-designer/src/com/intellij/uiDesigner/propertyInspector/editors/ComponentEditor.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 package com.intellij.uiDesigner.propertyInspector.editors;
  17
  18 import com.intellij.openapi.util.Condition;
  19 import com.intellij.uiDesigner.FormEditingUtil;
  20 import com.intellij.uiDesigner.lw.IComponent;
  21 import com.intellij.uiDesigner.propertyInspector.renderers.ComponentRenderer;
  22 import com.intellij.uiDesigner.propertyInspector.InplaceContext;
  23 import com.intellij.uiDesigner.radComponents.RadComponent;
  24 import com.intellij.uiDesigner.radComponents.RadContainer;
  25
  26 import javax.swing.*;
  27 import java.util.ArrayList;
  28
  29 /**
  30  * @author yole
  31  */
  32 public class ComponentEditor extends ComboBoxPropertyEditor<String> {
  33   private final Class myPropertyType;
  34   private final Condition<RadComponent> myFilter;
  35   private String myOldValue;
  36
  37   public ComponentEditor(final Class propertyType, final Condition<RadComponent> filter) {
  38     myPropertyType = propertyType;
  39     myFilter = filter;
  40     myCbx.setRenderer(new ComponentRenderer());
  41   }
  42
  43   public JComponent getComponent(RadComponent component, String value, InplaceContext inplaceContext) {
  44     RadComponent[] components = collectFilteredComponents(component);
  45     // components [0] = null (<none>)
  46     myCbx.setModel(new DefaultComboBoxModel(components));
  47     myOldValue = value;
  48     if (value == null || myOldValue.length() == 0) {
  49       myCbx.setSelectedIndex(0);
  50     }
  51     else {
  52       for(int i=1; i<components.length; i++) {
  53         if (components [i].getId().equals(value)) {
  54           myCbx.setSelectedIndex(i);
  55           break;
  56         }
  57       }
  58     }
  59     return myCbx;
  60   }
  61
  62   private RadComponent[] collectFilteredComponents(final RadComponent component) {
  63     final ArrayList<RadComponent> result = new ArrayList<RadComponent>();
  64     result.add(null);
  65
  66     RadContainer container = component.getParent();
  67     while(container.getParent() != null) {
  68       container = container.getParent();
  69     }
  70
  71     FormEditingUtil.iterate(container, new FormEditingUtil.ComponentVisitor() {
  72       public boolean visit(final IComponent component) {
  73         RadComponent radComponent = (RadComponent) component;
  74         final JComponent delegee = radComponent.getDelegee();
  75         if (!myPropertyType.isInstance(delegee)) {
  76           return true;
  77         }
  78         if (myFilter == null || myFilter.value(radComponent)) {
  79           result.add(radComponent);
  80         }
  81         return true;
  82       }
  83     });
  84
  85     return result.toArray(new RadComponent[result.size()]);
  86   }
  87
  88   @Override
  89   public String getValue() throws Exception {
  90     final RadComponent selection = (RadComponent)myCbx.getSelectedItem();
  91     if (selection == null) {
  92       return myOldValue == null ? null : "";
  93     }
  94     return selection.getId();
  95   }
  96 }