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1
11 package org.eclipse.jdt.internal.ui.refactoring.reorg;
12
13 import org.eclipse.core.resources.IResource;
14 import org.eclipse.core.resources.ResourcesPlugin;
15
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.layout.GridData;
18 import org.eclipse.swt.layout.GridLayout;
19 import org.eclipse.swt.widgets.Composite;
20 import org.eclipse.swt.widgets.Control;
21 import org.eclipse.swt.widgets.Label;
22
23 import org.eclipse.jface.dialogs.Dialog;
24 import org.eclipse.jface.viewers.ISelection;
25 import org.eclipse.jface.viewers.ISelectionChangedListener;
26 import org.eclipse.jface.viewers.IStructuredSelection;
27 import org.eclipse.jface.viewers.SelectionChangedEvent;
28 import org.eclipse.jface.viewers.StructuredSelection;
29 import org.eclipse.jface.viewers.TreeViewer;
30
31 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
32 import org.eclipse.ltk.ui.refactoring.UserInputWizardPage;
33
34 import org.eclipse.jdt.core.IJavaElement;
35 import org.eclipse.jdt.core.JavaCore;
36 import org.eclipse.jdt.core.JavaModelException;
37
38 import org.eclipse.jdt.internal.corext.refactoring.reorg.IReorgDestinationValidator;
39 import org.eclipse.jdt.internal.corext.util.Messages;
40
41 import org.eclipse.jdt.ui.JavaElementComparator;
42 import org.eclipse.jdt.ui.JavaElementLabelProvider;
43 import org.eclipse.jdt.ui.JavaElementLabels;
44
45 import org.eclipse.jdt.internal.ui.JavaPlugin;
46
47
48 abstract class ReorgUserInputPage extends UserInputWizardPage{
49 private static final long LABEL_FLAGS= JavaElementLabels.ALL_DEFAULT
50 | JavaElementLabels.M_PRE_RETURNTYPE | JavaElementLabels.M_PARAMETER_NAMES | JavaElementLabels.F_PRE_TYPE_SIGNATURE;
51 private TreeViewer fViewer;
52 public ReorgUserInputPage(String  pageName) {
53 super(pageName);
54 }
55
58 public void createControl(Composite parent) {
59 initializeDialogUnits(parent);
60 Composite result= new Composite(parent, SWT.NONE);
61 setControl(result);
62 result.setLayout(new GridLayout());
63
64 Object initialSelection= getInitiallySelectedElement();
65 verifyDestination(initialSelection, true);
66
67 addLabel(result);
68
69 fViewer= createViewer(result);
70 fViewer.setSelection(new StructuredSelection(initialSelection), true);
71 fViewer.addSelectionChangedListener(new ISelectionChangedListener(){
72 public void selectionChanged(SelectionChangedEvent event) {
73 ReorgUserInputPage.this.viewerSelectionChanged(event);
74 }
75 });
76 Dialog.applyDialogFont(result);
77 }
78
79 protected Control addLabel(Composite parent) {
80 Label label= new Label(parent, SWT.WRAP);
81 String text;
82 int resources= getResources().length;
83 int javaElements= getJavaElements().length;
84
85 if (resources == 0 && javaElements == 1) {
86 text= Messages.format(
87 ReorgMessages.ReorgUserInputPage_choose_destination_single,
88 JavaElementLabels.getElementLabel(getJavaElements()[0], LABEL_FLAGS));
89 } else if (resources == 1 && javaElements == 0) {
90 text= Messages.format(
91 ReorgMessages.ReorgUserInputPage_choose_destination_single,
92 getResources()[0].getName());
93 } else {
94 text= Messages.format(
95 ReorgMessages.ReorgUserInputPage_choose_destination_multi,
96 String.valueOf(resources + javaElements));
97 }
98
99 label.setText(text);
100 GridData data= new GridData(SWT.FILL, SWT.END, true, false);
101 data.widthHint= convertWidthInCharsToPixels(50);
102 label.setLayoutData(data);
103 return label;
104 }
105
106 private void viewerSelectionChanged(SelectionChangedEvent event) {
107 ISelection selection= event.getSelection();
108 if (!(selection instanceof IStructuredSelection))
109 return;
110 IStructuredSelection ss= (IStructuredSelection)selection;
111 verifyDestination(ss.getFirstElement(), false);
112 }
113
114 protected abstract Object getInitiallySelectedElement();
115
116
117 protected abstract RefactoringStatus verifyDestination(Object selected) throws JavaModelException;
118
119 protected abstract IResource[] getResources();
120 protected abstract IJavaElement[] getJavaElements();
121
122 protected abstract IReorgDestinationValidator getDestinationValidator();
123
124 private final void verifyDestination(Object selected, boolean initialVerification) {
125 try {
126 RefactoringStatus status= verifyDestination(selected);
127 if (initialVerification)
128 setPageComplete(status.isOK());
129 else
130 setPageComplete(status);
131 } catch (JavaModelException e) {
132 JavaPlugin.log(e);
133 setPageComplete(false);
134 }
135 }
136
137 private TreeViewer createViewer(Composite parent) {
138 TreeViewer treeViewer= new TreeViewer(parent, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
139 GridData gd= new GridData(GridData.FILL_BOTH);
140 gd.widthHint= convertWidthInCharsToPixels(40);
141 gd.heightHint= convertHeightInCharsToPixels(15);
142 treeViewer.getTree().setLayoutData(gd);
143 treeViewer.setLabelProvider(new JavaElementLabelProvider(JavaElementLabelProvider.SHOW_SMALL_ICONS));
144 treeViewer.setContentProvider(new DestinationContentProvider(getDestinationValidator()));
145 treeViewer.setComparator(new JavaElementComparator());
146 treeViewer.setInput(JavaCore.create(ResourcesPlugin.getWorkspace().getRoot()));
147 return treeViewer;
148 }
149
150 protected TreeViewer getTreeViewer() {
151 return fViewer;
152 }
153 }
154 |
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