--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.browsing.ui.swt.widgets;\r
+\r
+import java.util.List;\r
+import java.util.Map;\r
+import java.util.concurrent.CopyOnWriteArrayList;\r
+import java.util.concurrent.atomic.AtomicBoolean;\r
+\r
+import org.eclipse.swt.events.ModifyListener;\r
+import org.eclipse.swt.widgets.Composite;\r
+import org.eclipse.swt.widgets.Control;\r
+import org.eclipse.swt.widgets.Display;\r
+import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;\r
+import org.simantics.browsing.ui.swt.widgets.impl.Widget;\r
+import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
+import org.simantics.db.management.ISessionContext;\r
+import org.simantics.db.procedure.Listener;\r
+import org.simantics.utils.datastructures.Pair;\r
+\r
+public class Combo extends WidgetImpl {\r
+\r
+ private ReadFactory<?, Map<String, Object>> itemFactory;\r
+ private ReadFactory<?, List<Pair<String, Object>>> itemFactory2;\r
+ private ReadFactory<?, String> selectionFactory;\r
+ private final CopyOnWriteArrayList<ModifyListener> modifyListeners = new CopyOnWriteArrayList<ModifyListener>();\r
+ private List<Pair<String, Object>> itemList;\r
+\r
+ final private Display display;\r
+ final private org.eclipse.swt.widgets.Combo combo;\r
+\r
+ public Combo(Composite parent, WidgetSupport support, int style) {\r
+ super(support);\r
+ this.display = parent.getDisplay();\r
+ combo = new org.eclipse.swt.widgets.Combo(parent, style);\r
+ combo.setData("org.simantics.browsing.ui.widgets.Combo", this);\r
+ support.register(this);\r
+ }\r
+\r
+ public void setItemFactory(ReadFactory<?, Map<String, Object>> itemFactory) {\r
+ if (this.itemFactory2 != null)\r
+ throw new IllegalStateException("Cannot use both itemFactory and itemFactory2");\r
+ this.itemFactory = itemFactory;\r
+ }\r
+\r
+ public void setItemFactory2(ReadFactory<?, List<Pair<String, Object>>> itemFactory) {\r
+ if (this.itemFactory != null)\r
+ throw new IllegalStateException("Cannot use both itemFactory and itemFactory2");\r
+ this.itemFactory2 = itemFactory;\r
+ }\r
+\r
+ public void setSelectionFactory(ReadFactory<?, String> selectionFactory) {\r
+ this.selectionFactory = selectionFactory;\r
+ }\r
+\r
+ public org.eclipse.swt.widgets.Combo getWidget() {\r
+ return combo;\r
+ }\r
+\r
+ @Override\r
+ public Control getControl() {\r
+ return combo;\r
+ }\r
+\r
+ private AtomicBoolean inputDisposed;\r
+\r
+ @Override\r
+ public void setInput(ISessionContext context, Object input) {\r
+\r
+ if (this.inputDisposed != null)\r
+ this.inputDisposed.set(true);\r
+ final AtomicBoolean inputDisposed = this.inputDisposed = new AtomicBoolean(false);\r
+\r
+ if (modifyListeners != null) {\r
+ for (ModifyListener listener : modifyListeners) {\r
+ if(listener instanceof Widget) {\r
+ ((Widget) listener).setInput(context, input);\r
+ }\r
+ }\r
+ }\r
+\r
+ if(itemFactory != null) {\r
+ itemFactory.listen(context, input, new Listener<Map<String, Object>>() {\r
+\r
+ @Override\r
+ public void exception(Throwable t) {\r
+ t.printStackTrace();\r
+ }\r
+\r
+ @Override\r
+ public void execute(final Map<String, Object> items) {\r
+ if(isDisposed()) return;\r
+ display.asyncExec(new Runnable() {\r
+\r
+ @Override\r
+ public void run() {\r
+ if(isDisposed()) return;\r
+// System.out.println("Combo received new items: " + items.size());\r
+ for(ModifyListener listener : modifyListeners) combo.removeModifyListener(listener);\r
+ combo.setData(items);\r
+ combo.clearSelection();\r
+ try {\r
+ combo.removeAll();\r
+ } catch (Throwable t) {\r
+ t.printStackTrace();\r
+ }\r
+ int index = 0;\r
+ for(String key : items.keySet()) {\r
+// System.out.println("-" + key);\r
+ combo.add(key);\r
+ combo.setData(key, index++);\r
+ }\r
+ String selectionKey = (String)combo.getData("_SelectionKey");\r
+ if(selectionKey != null) {\r
+ Integer selectionIndex = (Integer)combo.getData(selectionKey);\r
+ if(selectionIndex != null) combo.select(selectionIndex);\r
+ }\r
+ for(ModifyListener listener : modifyListeners) combo.addModifyListener(listener);\r
+ //label.setSize(200, 20);\r
+// label.getParent().layout();\r
+// label.getParent().getParent().layout();\r
+ }\r
+\r
+ });\r
+ }\r
+\r
+ @Override\r
+ public boolean isDisposed() {\r
+ return combo.isDisposed() || inputDisposed.get();\r
+ }\r
+\r
+ });\r
+ }\r
+\r
+ if(itemFactory2 != null) {\r
+ itemFactory2.listen(context, input, new Listener<List<Pair<String, Object>>>() {\r
+\r
+ @Override\r
+ public void exception(Throwable t) {\r
+ t.printStackTrace();\r
+ }\r
+\r
+ @Override\r
+ public void execute(final List<Pair<String, Object>> items) {\r
+ if(isDisposed()) return;\r
+ display.asyncExec(new Runnable() {\r
+\r
+ @Override\r
+ public void run() {\r
+ if(isDisposed()) return;\r
+// System.out.println("Combo received new items: " + items.size());\r
+ itemList = items;\r
+ for(ModifyListener listener : modifyListeners) combo.removeModifyListener(listener);\r
+ combo.setData(items);\r
+ combo.clearSelection();\r
+ try {\r
+ combo.removeAll();\r
+ } catch (Throwable t) {\r
+ t.printStackTrace();\r
+ }\r
+ if (items != null) {\r
+ int index = 0;\r
+ for(Pair<String, Object> key : items) {\r
+// System.out.println("-" + key);\r
+ combo.add(key.first);\r
+ combo.setData(key.first, index++);\r
+ }\r
+ String selectionKey = (String)combo.getData("_SelectionKey");\r
+ if(selectionKey != null) {\r
+ Integer selectionIndex = (Integer)combo.getData(selectionKey);\r
+ if(selectionIndex != null) combo.select(selectionIndex);\r
+ }\r
+ }\r
+ for(ModifyListener listener : modifyListeners) combo.addModifyListener(listener);\r
+ //label.setSize(200, 20);\r
+// label.getParent().layout();\r
+// label.getParent().getParent().layout();\r
+ }\r
+\r
+ });\r
+ }\r
+\r
+ @Override\r
+ public boolean isDisposed() {\r
+ return combo.isDisposed() || inputDisposed.get();\r
+ }\r
+\r
+ });\r
+ }\r
+\r
+ if(selectionFactory != null) {\r
+ selectionFactory.listen(context, input, new Listener<String>() {\r
+\r
+ @Override\r
+ public void exception(Throwable t) {\r
+ t.printStackTrace();\r
+ }\r
+\r
+ @Override\r
+ public void execute(final String selectionKey) {\r
+ if(isDisposed()) return;\r
+ display.asyncExec(new Runnable() {\r
+\r
+ @Override\r
+ public void run() {\r
+ if(isDisposed()) return;\r
+ if(selectionKey == null) return;\r
+// System.out.println("Combo received new selection key: " + selectionKey);\r
+ for(ModifyListener listener : modifyListeners) combo.removeModifyListener(listener);\r
+ combo.setData("_SelectionKey", selectionKey);\r
+ Integer selectionIndex = (Integer)combo.getData(selectionKey);\r
+ if(selectionIndex != null) combo.select(selectionIndex);\r
+ for(ModifyListener listener : modifyListeners) combo.addModifyListener(listener);\r
+ }\r
+\r
+ });\r
+ }\r
+\r
+ @Override\r
+ public boolean isDisposed() {\r
+ return combo.isDisposed() || inputDisposed.get();\r
+ }\r
+\r
+ });\r
+ }\r
+\r
+ }\r
+\r
+ public synchronized void addModifyListener(ModifyListener listener) {\r
+ modifyListeners.add(listener);\r
+ combo.addModifyListener(listener);\r
+ }\r
+\r
+ /**\r
+ * @param index\r
+ * @return\r
+ * @throws IndexOutOfBoundsException if index is outside widget bounds\r
+ */\r
+ @SuppressWarnings("unchecked")\r
+ public <T> Pair<String, T> getData(int index) {\r
+ if (itemFactory != null)\r
+ new IllegalStateException("this method is only useful when used with Combo.setItemFactory2").printStackTrace();\r
+ if (index == -1)\r
+ return null;\r
+ return (Pair<String, T>) itemList.get(index);\r
+ }\r
+\r
+ /**\r
+ * @return selected combo list item or <code>null</code> if no item is\r
+ * selected\r
+ */\r
+ public <T> Pair<String, T> getSelectedData() {\r
+ return getData(combo.getSelectionIndex());\r
+ }\r
+\r
+}\r
Code Review / simantics / platform.git / blobdiff