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1
16 package com.google.gwt.dev.shell;
17
18 import com.google.gwt.dev.GWTShell;
19
20 import org.eclipse.swt.SWT;
21 import org.eclipse.swt.events.DisposeEvent;
22 import org.eclipse.swt.events.DisposeListener;
23 import org.eclipse.swt.events.SelectionAdapter;
24 import org.eclipse.swt.events.SelectionEvent;
25 import org.eclipse.swt.graphics.Rectangle;
26 import org.eclipse.swt.layout.FillLayout;
27 import org.eclipse.swt.widgets.Button;
28 import org.eclipse.swt.widgets.Composite;
29 import org.eclipse.swt.widgets.Control;
30 import org.eclipse.swt.widgets.Dialog;
31 import org.eclipse.swt.widgets.Display;
32 import org.eclipse.swt.widgets.MessageBox;
33 import org.eclipse.swt.widgets.Shell;
34
35
38 public abstract class DialogBase extends Dialog implements DisposeListener {
39
40 private class Buttons extends GridPanel {
41 public Buttons(Composite parent) {
42 super(parent, SWT.NONE, hasCancel ? 2 : 1, true);
43
44 if (hasOk) {
45 okButton = new Button(this, SWT.PUSH);
46 setGridData(okButton, 1, 1, FILL, FILL, false, false);
47 okButton.setText(" OK ");
48 okButton.addSelectionListener(new SelectionAdapter() {
49 public void widgetSelected(SelectionEvent e) {
50 clickOkButton();
51 }
52 });
53 }
54
55 if (hasCancel) {
56 cancelButton = new Button(this, SWT.PUSH);
57 setGridData(cancelButton, 1, 1, FILL, FILL, false, false);
58 cancelButton.setText("Cancel");
59 cancelButton.addSelectionListener(new SelectionAdapter() {
60 public void widgetSelected(SelectionEvent e) {
61 clickCancelButton();
62 }
63 });
64 }
65
66 shell.setDefaultButton(okButton);
67 }
68 }
69
70 private class Contents extends GridPanel {
71
72 public Contents(Composite parent) {
73 super(parent, SWT.NONE, 1, false, 0, 0);
74
75 Control contents = createContents(this);
76 setGridData(contents, 1, 1, FILL, FILL, true, true);
77
78 if (hasOk || hasCancel) {
79 Buttons buttons = new Buttons(this);
80 setGridData(buttons, 1, 1, RIGHT, BOTTOM, false, false);
81 }
82 }
83 }
84
85
88 public static boolean confirmAction(Shell shell, String  msg, String msgTitle) {
89 MessageBox msgBox = new MessageBox(shell, SWT.ICON_WARNING | SWT.YES
90 | SWT.NO);
91 msgBox.setText(msgTitle);
92 msgBox.setMessage(msg);
93 return msgBox.open() == SWT.YES;
94 }
95
96 private Button cancelButton;
97
98 private boolean cancelled = true;
99
100 private boolean hasCancel;
101
102 private boolean hasOk;
103
104 private int minHeight;
105
106 private int minWidth;
107
108 private Button okButton;
109
110 private Shell shell;
111
112 public DialogBase(Shell parent, int minWidth, int minHeight) {
113 this(parent, minWidth, minHeight, true, true);
114 }
115
116 public DialogBase(Shell parent, int minWidth, int minHeight,
117 boolean hasOkButton, boolean hasCancelButton) {
118 super(parent, SWT.NONE);
119 this.minWidth = minWidth;
120 this.minHeight = minHeight;
121 hasOk = hasOkButton;
122 hasCancel = hasCancelButton;
123 }
124
125 public Shell getShell() {
126 return shell;
127 }
128
129 public boolean open() {
130 return open(true);
131 }
132
133 public boolean open(boolean autoSize) {
134 Shell parent = getParent();
135 shell = new Shell(parent, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL
136 | SWT.RESIZE);
137 shell.setImages(GWTShell.getIcons());
138 shell.setText(getText());
139 shell.setLayout(new FillLayout());
140
141 new Contents(shell);
142
143 onOpen();
144
145 int myWidth;
146 int myHeight;
147 if (autoSize) {
148 shell.pack();
152
153 Rectangle shellBounds = shell.getBounds();
154
155 myWidth = Math.max(shellBounds.width, minWidth);
156 myHeight = Math.max(shellBounds.height, minHeight);
157 } else {
158 myWidth = minWidth;
159 myHeight = minHeight;
160 }
161
162 Rectangle parentBounds = parent.getBounds();
165 int myLeft = parentBounds.x + (parentBounds.width / 2 - myWidth / 2);
166 int myTop = parentBounds.y + (parentBounds.height / 4);
167
168 shell.setBounds(myLeft, myTop, myWidth, myHeight);
169
170 shell.open();
171
172 Display display = parent.getDisplay();
173 while (!shell.isDisposed()) {
174 if (!display.readAndDispatch()) {
175 display.sleep();
176 }
177 }
178
179 return !cancelled;
180 }
181
182 public void setText(String string) {
183 super.setText(string);
184 shell.setText(string);
185 }
186
187 public void widgetDisposed(DisposeEvent e) {
188 }
189
190 protected void clickCancelButton() {
191 cancelled = true;
192 onCancel();
193 shell.dispose();
194 }
195
196 protected void clickOkButton() {
197 cancelled = false;
198 onOk();
199 shell.dispose();
200 }
201
202 protected abstract Control createContents(Composite parent);
203
204 protected void onCancel() {
205 }
206
207 protected void onOk() {
208 }
209
210 protected void onOpen() {
211 }
212
213 protected void setOkEnabled(boolean enabled) {
214 okButton.setEnabled(enabled);
215 }
216 }
217 |
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