Examples with SWTError org.eclipse.swt.SWTError used on opensource projects

Example 6 with SWTError

use of org.eclipse.swt.SWTError in project eclipse.platform.swt by eclipse.

the class DNDExample method createDragSource.

private void createDragSource() {
    if (dragSource != null)
        dragSource.dispose();
    dragSource = new DragSource(dragControl, dragOperation);
    dragSource.setTransfer(dragTypes);
    dragSource.addDragListener(new DragSourceListener() {

        @Override
        public void dragFinished(org.eclipse.swt.dnd.DragSourceEvent event) {
            dragConsole.append(">>dragFinished\n");
            printEvent(event);
            dragDataText = dragDataRTF = dragDataHTML = dragDataURL = null;
            dragDataFiles = null;
            if (event.detail == DND.DROP_MOVE) {
                switch(dragControlType) {
                    case BUTTON_CHECK:
                    case BUTTON_TOGGLE:
                    case BUTTON_RADIO:
                        {
                            Button b = (Button) dragControl;
                            b.setText("");
                            break;
                        }
                    case STYLED_TEXT:
                        {
                            StyledText text = (StyledText) dragControl;
                            text.insert("");
                            break;
                        }
                    case TABLE:
                        {
                            Table table = (Table) dragControl;
                            TableItem[] items = table.getSelection();
                            for (TableItem item : items) {
                                item.dispose();
                            }
                            break;
                        }
                    case TEXT:
                        {
                            Text text = (Text) dragControl;
                            text.insert("");
                            break;
                        }
                    case TREE:
                        {
                            Tree tree = (Tree) dragControl;
                            TreeItem[] items = tree.getSelection();
                            for (TreeItem item : items) {
                                item.dispose();
                            }
                            break;
                        }
                    case CANVAS:
                        {
                            dragControl.setData("STRINGS", null);
                            dragControl.redraw();
                            break;
                        }
                    case LABEL:
                        {
                            Label label = (Label) dragControl;
                            label.setText("");
                            break;
                        }
                    case LIST:
                        {
                            List list = (List) dragControl;
                            int[] indices = list.getSelectionIndices();
                            list.remove(indices);
                            break;
                        }
                    case COMBO:
                        {
                            Combo combo = (Combo) dragControl;
                            combo.setText("");
                            break;
                        }
                }
            }
        }

        @Override
        public void dragSetData(org.eclipse.swt.dnd.DragSourceEvent event) {
            dragConsole.append(">>dragSetData\n");
            printEvent(event);
            if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataText;
            }
            if (RTFTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataRTF;
            }
            if (HTMLTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataHTML;
            }
            if (URLTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataURL;
            }
            if (FileTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = dragDataFiles;
            }
        }

        @Override
        public void dragStart(org.eclipse.swt.dnd.DragSourceEvent event) {
            dragConsole.append(">>dragStart\n");
            printEvent(event);
            dragDataFiles = fileList.getItems();
            switch(dragControlType) {
                case BUTTON_CHECK:
                case BUTTON_TOGGLE:
                case BUTTON_RADIO:
                    {
                        Button b = (Button) dragControl;
                        dragDataText = b.getSelection() ? "true" : "false";
                        break;
                    }
                case STYLED_TEXT:
                    {
                        StyledText text = (StyledText) dragControl;
                        String s = text.getSelectionText();
                        if (s.length() == 0) {
                            event.doit = false;
                        } else {
                            dragDataText = s;
                        }
                        break;
                    }
                case TABLE:
                    {
                        Table table = (Table) dragControl;
                        TableItem[] items = table.getSelection();
                        if (items.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < items.length; i++) {
                                buffer.append(items[i].getText());
                                if (items.length > 1 && i < items.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case TEXT:
                    {
                        Text text = (Text) dragControl;
                        String s = text.getSelectionText();
                        if (s.length() == 0) {
                            event.doit = false;
                        } else {
                            dragDataText = s;
                        }
                        break;
                    }
                case TREE:
                    {
                        Tree tree = (Tree) dragControl;
                        TreeItem[] items = tree.getSelection();
                        if (items.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < items.length; i++) {
                                buffer.append(items[i].getText());
                                if (items.length > 1 && i < items.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case CANVAS:
                    {
                        String[] strings = (String[]) dragControl.getData("STRINGS");
                        if (strings == null || strings.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < strings.length; i++) {
                                buffer.append(strings[i]);
                                if (strings.length > 1 && i < strings.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case LABEL:
                    {
                        Label label = (Label) dragControl;
                        String string = label.getText();
                        if (string.length() == 0) {
                            event.doit = false;
                        } else {
                            dragDataText = string;
                        }
                        break;
                    }
                case LIST:
                    {
                        List list = (List) dragControl;
                        String[] selection = list.getSelection();
                        if (selection.length == 0) {
                            event.doit = false;
                        } else {
                            StringBuilder buffer = new StringBuilder();
                            for (int i = 0; i < selection.length; i++) {
                                buffer.append(selection[i]);
                                if (selection.length > 1 && i < selection.length - 1) {
                                    buffer.append("\n");
                                }
                            }
                            dragDataText = buffer.toString();
                        }
                        break;
                    }
                case COMBO:
                    {
                        Combo combo = (Combo) dragControl;
                        String string = combo.getText();
                        Point selection = combo.getSelection();
                        if (selection.x == selection.y) {
                            event.doit = false;
                        } else {
                            dragDataText = string.substring(selection.x, selection.y);
                        }
                        break;
                    }
                default:
                    throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED);
            }
            if (dragDataText != null) {
                dragDataRTF = "{\\rtf1{\\colortbl;\\red255\\green0\\blue0;}\\cf1\\b " + dragDataText + "}";
                dragDataHTML = "<b>" + dragDataText + "</b>";
                dragDataURL = "http://" + dragDataText.replace(' ', '.');
                try {
                    new URL(dragDataURL);
                } catch (MalformedURLException e) {
                    dragDataURL = null;
                }
            }
            for (Transfer dragType : dragTypes) {
                if (dragType instanceof TextTransfer && dragDataText == null) {
                    event.doit = false;
                }
                if (dragType instanceof RTFTransfer && dragDataRTF == null) {
                    event.doit = false;
                }
                if (dragType instanceof HTMLTransfer && dragDataHTML == null) {
                    event.doit = false;
                }
                if (dragType instanceof URLTransfer && dragDataURL == null) {
                    event.doit = false;
                }
                if (dragType instanceof FileTransfer && (dragDataFiles == null || dragDataFiles.length == 0)) {
                    event.doit = false;
                }
            }
        }
    });
}

Example 7 with SWTError

use of org.eclipse.swt.SWTError in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_SWTError method test_printStackTrace.

@Test
public void test_printStackTrace() {
    try {
        Class.forName("java.io.PrintStream");
    } catch (ClassNotFoundException e) {
        // ignore test if running on CLDC
        return;
    }
    // test default SWTError
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    System.setErr(new PrintStream(out));
    SWTError error = new SWTError();
    error.printStackTrace();
    assertTrue(out.size() > 0);
    assertTrue(new String(out.toByteArray()).indexOf("test_printStackTrace") != -1);
    // test SWTError with code
    out = new ByteArrayOutputStream();
    System.setErr(new PrintStream(out));
    error = new SWTError(SWT.ERROR_INVALID_ARGUMENT);
    error.printStackTrace();
    assertTrue(out.size() > 0);
    assertTrue(new String(out.toByteArray()).indexOf("test_printStackTrace") != -1);
}

Example 8 with SWTError

use of org.eclipse.swt.SWTError in project eclipse.platform.swt by eclipse.

the class BrowserDemoView method createPartControl.

@Override
public void createPartControl(Composite parent) {
    this.parent = parent;
    parent.setLayout(new FillLayout());
    try {
        Browser browser = new Browser(parent, SWT.NONE);
        browser.dispose();
    } catch (SWTError e) {
        Text text = new Text(parent, SWT.MULTI | SWT.READ_ONLY);
        text.setText("Browser widget cannot be instantiated. The exact error is:\r\n" + e);
        text.requestLayout();
        return;
    }
    TabFolder folder = new TabFolder(parent, SWT.NONE);
    TabItem item = new TabItem(folder, SWT.NONE);
    new PawnTab(item);
    item = new TabItem(folder, SWT.NONE);
    new EditorTab(item);
}

Example 9 with SWTError

use of org.eclipse.swt.SWTError in project eclipse.platform.swt by eclipse.

the class BrowserTab method createExampleWidgets.

/**
 * Creates the "Example" widgets.
 */
@Override
void createExampleWidgets() {
    /* Compute the widget style */
    int style = getDefaultStyle();
    if (borderButton.getSelection())
        style |= SWT.BORDER;
    if (webKitButton.getSelection())
        style |= SWT.WEBKIT;
    /* Create the example widgets */
    try {
        browser = new Browser(browserGroup, style);
    } catch (SWTError e) {
        // Probably missing browser
        try {
            browser = new Browser(browserGroup, style & ~(SWT.WEBKIT));
        } catch (SWTError e2) {
            // Unsupported platform
            errorMessage = e.getMessage();
            return;
        }
        MessageBox dialog = new MessageBox(shell, SWT.ICON_WARNING | SWT.OK);
        String resourceString = "WebKitNotFound";
        dialog.setMessage(ControlExample.getResourceString(resourceString, e.getMessage()));
        dialog.open();
    }
    if (lastUrl != null) {
        browser.setUrl(lastUrl);
    } else if (lastText != null) {
        browser.setText(lastText);
    } else {
        StringBuilder sb = new StringBuilder(300);
        try (InputStream htmlStream = ControlExample.class.getResourceAsStream("browser-content.html");
            BufferedReader br = new BufferedReader(new InputStreamReader(htmlStream))) {
            int read = 0;
            while ((read = br.read()) != -1) sb.append((char) read);
        } catch (IOException e) {
            log(e.getMessage());
        }
        String text = sb.toString();
        browser.setText(text);
    }
    lastText = lastUrl = null;
}

Example 10 with SWTError

use of org.eclipse.swt.SWTError in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_printing_Printer method test_Constructor.

@Test
public void test_Constructor() {
    boolean exceptionThrown = false;
    String detail = "";
    if (Printer.getDefaultPrinterData() == null) {
        /* There aren't any printers, so verify that the
		 * constructor throws an ERROR_NO_HANDLES SWTError.
		 */
        try {
            Printer printer = new Printer();
            printer.dispose();
        } catch (SWTError ex) {
            if (ex.code == SWT.ERROR_NO_HANDLES)
                exceptionThrown = true;
        }
        assertTrue("ERROR_NO_HANDLES not thrown", exceptionThrown);
    } else {
        /* There is at least a default printer, so verify that
		 * the constructor does not throw any exceptions.
		 */
        try {
            Printer printer = new Printer();
            printer.dispose();
        } catch (Throwable ex) {
            exceptionThrown = true;
            detail = ex.getMessage();
        }
        assertFalse("Exception thrown: " + detail, exceptionThrown);
    }
}