analysis/org.eclipse.tracecompass.analysis.lami.ui/src/org/eclipse/tracecompass/internal/provisional/analysis/lami/ui/handler/AddAnalysisDialog.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015, 2016 EfficiOS Inc., Philippe Proulx
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *******************************************************************************/
   9
  10 package org.eclipse.tracecompass.internal.provisional.analysis.lami.ui.handler;
  11
  12 import org.eclipse.jdt.annotation.NonNullByDefault;
  13 import org.eclipse.jface.dialogs.Dialog;
  14 import org.eclipse.jface.dialogs.IDialogConstants;
  15 import org.eclipse.jface.dialogs.IInputValidator;
  16 import org.eclipse.jface.resource.FontDescriptor;
  17 import org.eclipse.jface.resource.StringConverter;
  18 import org.eclipse.swt.SWT;
  19 import org.eclipse.swt.graphics.Color;
  20 import org.eclipse.swt.graphics.Font;
  21 import org.eclipse.swt.layout.GridData;
  22 import org.eclipse.swt.widgets.Button;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Control;
  25 import org.eclipse.swt.widgets.Label;
  26 import org.eclipse.swt.widgets.Shell;
  27 import org.eclipse.swt.widgets.Text;
  28
  29 /**
  30  * Dialog to set a name and a command when creating a custom
  31  * analysis entry.
  32  *
  33  * @author Philippe Proulx
  34  */
  35 @NonNullByDefault({})
  36 class AddAnalysisDialog extends Dialog {
  37
  38     private final String title;
  39     private String fName = ""; //$NON-NLS-1$
  40     private String fCommand = ""; //$NON-NLS-1$
  41     private final IInputValidator fNameValidator;
  42     private final IInputValidator fCommandValidator;
  43     private Button fOkButton;
  44     private Text fNameText;
  45     private Text fCommandText;
  46     private Label fNameErrorLabel;
  47     private Label fCommandErrorLabel;
  48
  49     public AddAnalysisDialog(Shell parentShell,
  50             String dialogTitle,
  51             IInputValidator nameValidator,
  52             IInputValidator commandValidator) {
  53         super(parentShell);
  54         this.title = dialogTitle;
  55         fNameValidator = nameValidator;
  56         fCommandValidator = commandValidator;
  57     }
  58
  59     @Override
  60     protected void buttonPressed(int buttonId) {
  61         if (buttonId == IDialogConstants.OK_ID) {
  62             fName = fNameText.getText();
  63             fCommand = fCommandText.getText();
  64         } else {
  65             fName = null;
  66             fCommand = null;
  67         }
  68         super.buttonPressed(buttonId);
  69     }
  70
  71     @Override
  72     protected boolean isResizable() {
  73         return true;
  74     }
  75
  76     @Override
  77     protected void configureShell(Shell shell) {
  78         super.configureShell(shell);
  79         if (title != null) {
  80             shell.setText(title);
  81         }
  82     }
  83
  84     @Override
  85     protected void createButtonsForButtonBar(Composite parent) {
  86         fOkButton = createButton(parent, IDialogConstants.OK_ID,
  87                 IDialogConstants.OK_LABEL, true);
  88         createButton(parent, IDialogConstants.CANCEL_ID,
  89                 IDialogConstants.CANCEL_LABEL, false);
  90         validateInputs();
  91         fNameText.setFocus();
  92     }
  93
  94     private static void createSubtitleLabel(Composite parent, String text) {
  95         final Label label = new Label(parent, SWT.WRAP);
  96         label.setText(text + ':');
  97         final FontDescriptor boldDescriptor = FontDescriptor.createFrom(parent.getFont()).setStyle(SWT.BOLD);
  98         final Font boldFont = boldDescriptor.createFont(parent.getDisplay());
  99         label.setFont(boldFont);
 100         label.addDisposeListener(event -> boldDescriptor.destroyFont(boldFont));
 101     }
 102
 103     private static Label createErrorLabel(Composite parent) {
 104         final Label label = new Label(parent, SWT.WRAP);
 105         Color color = new Color(parent.getDisplay(), 0xe7, 0x4c, 0x3c);
 106         label.setForeground(color);
 107         final FontDescriptor fd = FontDescriptor.createFrom(parent.getFont());
 108         fd.setHeight(9);
 109         Font font = fd.createFont(parent.getDisplay());
 110         label.setFont(font);
 111
 112         label.addDisposeListener(e -> {
 113             color.dispose();
 114             fd.destroyFont(font);
 115         });
 116
 117         return label;
 118     }
 119
 120     @Override
 121     protected Control createDialogArea(Composite parent) {
 122         // create composite
 123         final Composite composite = (Composite) super.createDialogArea(parent);
 124
 125         // create label for name text
 126         createSubtitleLabel(composite, Messages.AddAnalysisDialog_Name);
 127
 128         // create name text
 129         fNameText = new Text(composite, getInputTextStyle());
 130         fNameText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
 131                 | GridData.HORIZONTAL_ALIGN_FILL));
 132         fNameText.addModifyListener(e -> validateInputs());
 133
 134         // create name error text
 135         fNameErrorLabel = createErrorLabel(composite);
 136
 137         // spacer
 138         new Label(composite, SWT.WRAP);
 139
 140         // create label for command text
 141         createSubtitleLabel(composite, Messages.AddAnalysisDialog_Command);
 142
 143         // create command text
 144         fCommandText = new Text(composite, getInputTextStyle());
 145         fCommandText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
 146                 | GridData.HORIZONTAL_ALIGN_FILL));
 147         final Font mono = new Font(parent.getDisplay(), "Monospace", 9, SWT.NONE); //$NON-NLS-1$
 148         fCommandText.setFont(mono);
 149         fCommandText.addModifyListener(e -> validateInputs());
 150         fCommandText.addDisposeListener(e -> mono.dispose());
 151
 152         // create command error text
 153         fCommandErrorLabel = createErrorLabel(composite);
 154
 155         applyDialogFont(composite);
 156         return composite;
 157     }
 158
 159     @Override
 160     public void create() {
 161         super.create();
 162         Shell shell = getShell();
 163         shell.setMinimumSize(shell.getSize());
 164     }
 165
 166     /**
 167      * Returns the value of the name text.
 168      *
 169      * @return the name text's value
 170      */
 171     public String getName() {
 172         return fName;
 173     }
 174
 175     /**
 176      * Returns the value of the command text.
 177      *
 178      * @return the command text's value
 179      */
 180     public String getCommand() {
 181         return fCommand;
 182     }
 183
 184     protected boolean validateInput(IInputValidator validator, Text text, Label errorLabel) {
 185         final String errMsg = validator.isValid(text.getText());
 186         setErrorLabel(errorLabel, errMsg);
 187
 188         return errMsg == null;
 189     }
 190
 191     protected void validateInputs() {
 192         boolean valid = true;
 193
 194         valid &= validateInput(fNameValidator, fNameText, fNameErrorLabel);
 195         valid &= validateInput(fCommandValidator, fCommandText, fCommandErrorLabel);
 196         fOkButton.setEnabled(valid);
 197     }
 198
 199     protected void setErrorLabel(Label label, String errorMessage) {
 200         if (label != null && !label.isDisposed()) {
 201             label.setText(errorMessage == null ? " \n " : errorMessage); //$NON-NLS-1$
 202             final boolean hasError = errorMessage != null && (StringConverter.removeWhiteSpaces(errorMessage)).length() > 0;
 203             label.setEnabled(hasError);
 204             label.setVisible(hasError);
 205             label.getParent().update();
 206             Control button = getButton(IDialogConstants.OK_ID);
 207
 208             if (button != null) {
 209                 button.setEnabled(errorMessage == null);
 210             }
 211         }
 212     }
 213
 214     protected int getInputTextStyle() {
 215         return SWT.SINGLE | SWT.BORDER;
 216     }
 217 }