eclipse/org.argeo.cms.swt/src/org/argeo/cms/swt/dialogs/CmsMessageDialog.java

   1 package org.argeo.cms.swt.dialogs;
   2
   3 import org.argeo.cms.CmsMsg;
   4 import org.argeo.cms.swt.CmsSwtUtils;
   5 import org.argeo.cms.swt.Selected;
   6 import org.argeo.eclipse.ui.EclipseUiUtils;
   7 import org.eclipse.swt.SWT;
   8 import org.eclipse.swt.events.TraverseEvent;
   9 import org.eclipse.swt.events.TraverseListener;
  10 import org.eclipse.swt.graphics.Point;
  11 import org.eclipse.swt.layout.GridData;
  12 import org.eclipse.swt.layout.GridLayout;
  13 import org.eclipse.swt.widgets.Button;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Control;
  16 import org.eclipse.swt.widgets.Display;
  17 import org.eclipse.swt.widgets.Label;
  18 import org.eclipse.swt.widgets.Shell;
  19
  20 /** Base class for dialogs displaying messages or small forms. */
  21 public class CmsMessageDialog extends LightweightDialog {
  22         public final static int NONE = 0;
  23         public final static int ERROR = 1;
  24         public final static int INFORMATION = 2;
  25         public final static int QUESTION = 3;
  26         public final static int WARNING = 4;
  27         public final static int CONFIRM = 5;
  28         public final static int QUESTION_WITH_CANCEL = 6;
  29
  30         private int kind;
  31         private String message;
  32
  33         public CmsMessageDialog(Shell parentShell, String message, int kind) {
  34                 super(parentShell);
  35                 this.kind = kind;
  36                 this.message = message;
  37         }
  38
  39         protected Control createDialogArea(Composite parent) {
  40                 parent.setLayout(new GridLayout());
  41
  42                 TraverseListener traverseListener = new TraverseListener() {
  43                         private static final long serialVersionUID = -1158892811534971856L;
  44
  45                         public void keyTraversed(TraverseEvent e) {
  46                                 if (e.detail == SWT.TRAVERSE_RETURN)
  47                                         okPressed();
  48                                 else if (e.detail == SWT.TRAVERSE_ESCAPE)
  49                                         cancelPressed();
  50                         }
  51                 };
  52
  53                 // message
  54                 Composite body = new Composite(parent, SWT.NONE);
  55                 body.addTraverseListener(traverseListener);
  56                 GridLayout bodyGridLayout = new GridLayout();
  57                 bodyGridLayout.marginHeight = 20;
  58                 bodyGridLayout.marginWidth = 20;
  59                 body.setLayout(bodyGridLayout);
  60                 body.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  61
  62                 if (message != null) {
  63                         Label messageLbl = new Label(body, SWT.WRAP);
  64                         CmsSwtUtils.markup(messageLbl);
  65                         messageLbl.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  66                         messageLbl.setFont(EclipseUiUtils.getBoldFont(parent));
  67                         messageLbl.setText(message);
  68                 }
  69
  70                 // buttons
  71                 Composite buttons = new Composite(parent, SWT.NONE);
  72                 buttons.addTraverseListener(traverseListener);
  73                 buttons.setLayoutData(new GridData(SWT.END, SWT.FILL, true, false));
  74                 if (kind == INFORMATION || kind == WARNING || kind == ERROR || kind == ERROR) {
  75                         GridLayout layout = new GridLayout(1, true);
  76                         layout.marginWidth = 0;
  77                         layout.marginHeight = 0;
  78                         buttons.setLayout(layout);
  79
  80                         Button close = new Button(buttons, SWT.FLAT);
  81                         close.setText(CmsMsg.close.lead());
  82                         close.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
  83                         close.addSelectionListener((Selected) (e) -> closeShell(OK));
  84                         close.setFocus();
  85                         close.addTraverseListener(traverseListener);
  86
  87                         buttons.setTabList(new Control[] { close });
  88                 } else if (kind == CONFIRM || kind == QUESTION || kind == QUESTION_WITH_CANCEL) {
  89                         Control input = createInputArea(body);
  90                         if (input != null) {
  91                                 input.addTraverseListener(traverseListener);
  92                                 body.setTabList(new Control[] { input });
  93                         }
  94                         GridLayout layout = new GridLayout(2, true);
  95                         layout.marginWidth = 0;
  96                         layout.marginHeight = 0;
  97                         buttons.setLayout(layout);
  98
  99                         Button cancel = new Button(buttons, SWT.FLAT);
 100                         cancel.setText(CmsMsg.cancel.lead());
 101                         cancel.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
 102                         cancel.addSelectionListener((Selected) (e) -> cancelPressed());
 103                         cancel.addTraverseListener(traverseListener);
 104
 105                         Button ok = new Button(buttons, SWT.FLAT);
 106                         ok.setText(CmsMsg.ok.lead());
 107                         ok.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
 108                         ok.addSelectionListener((Selected) (e) -> okPressed());
 109                         ok.addTraverseListener(traverseListener);
 110                         if (input == null)
 111                                 ok.setFocus();
 112                         else
 113                                 input.setFocus();
 114
 115                         buttons.setTabList(new Control[] { ok, cancel });
 116                 }
 117                 // pack();
 118                 parent.setTabList(new Control[] { body, buttons });
 119                 return body;
 120         }
 121
 122         protected Control createInputArea(Composite parent) {
 123                 return null;
 124         }
 125
 126         protected void okPressed() {
 127                 closeShell(OK);
 128         }
 129
 130         protected void cancelPressed() {
 131                 closeShell(CANCEL);
 132         }
 133
 134         protected void cancel() {
 135                 closeShell(CANCEL);
 136         }
 137
 138         protected Point getInitialSize() {
 139                 return new Point(400, 200);
 140         }
 141
 142         public static boolean open(int kind, Shell parent, String message) {
 143                 CmsMessageDialog dialog = new CmsMessageDialog(parent, message, kind);
 144                 return dialog.open() == 0;
 145         }
 146
 147         public static boolean openConfirm(String message) {
 148                 return open(CONFIRM, Display.getCurrent().getActiveShell(), message);
 149         }
 150
 151         public static void openInformation(String message) {
 152                 open(INFORMATION, Display.getCurrent().getActiveShell(), message);
 153         }
 154
 155         public static boolean openQuestion(String message) {
 156                 return open(QUESTION, Display.getCurrent().getActiveShell(), message);
 157         }
 158
 159         public static void openWarning(String message) {
 160                 open(WARNING, Display.getCurrent().getActiveShell(), message);
 161         }
 162
 163         public static void openError(String message) {
 164                 open(ERROR, Display.getCurrent().getActiveShell(), message);
 165         }
 166
 167 }