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

Example 11 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_ConstructorLorg_eclipse_swt_printing_PrinterData.

@Test
public void test_ConstructorLorg_eclipse_swt_printing_PrinterData() {
    boolean exceptionThrown = false;
    String detail = "";
    PrinterData data = Printer.getDefaultPrinterData();
    if (data == null) {
        /* There aren't any printers, so verify that the
		 * constructor throws an ERROR_NO_HANDLES SWTError.
		 */
        try {
            Printer printer = new Printer(data);
            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(data);
            printer.dispose();
        } catch (Throwable ex) {
            exceptionThrown = true;
            detail = ex.getMessage();
        }
        assertFalse("Exception thrown: " + detail, exceptionThrown);
    }
}

Example 12 with SWTError

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

the class DNDExample method createDropTarget.

private void createDropTarget() {
    if (dropTarget != null)
        dropTarget.dispose();
    dropTarget = new DropTarget(dropControl, dropOperation);
    dropTarget.setTransfer(dropTypes);
    dropTarget.addDropListener(new DropTargetListener() {

        @Override
        public void dragEnter(DropTargetEvent event) {
            dropConsole.append(">>dragEnter\n");
            printEvent(event);
            if (event.detail == DND.DROP_DEFAULT) {
                event.detail = dropDefaultOperation;
            }
            event.feedback = dropFeedback;
        }

        @Override
        public void dragLeave(DropTargetEvent event) {
            dropConsole.append(">>dragLeave\n");
            printEvent(event);
        }

        @Override
        public void dragOperationChanged(DropTargetEvent event) {
            dropConsole.append(">>dragOperationChanged\n");
            printEvent(event);
            if (event.detail == DND.DROP_DEFAULT) {
                event.detail = dropDefaultOperation;
            }
            event.feedback = dropFeedback;
        }

        @Override
        public void dragOver(DropTargetEvent event) {
            dropConsole.append(">>dragOver\n");
            printEvent(event);
            event.feedback = dropFeedback;
        }

        @Override
        public void drop(DropTargetEvent event) {
            dropConsole.append(">>drop\n");
            printEvent(event);
            String[] strings = null;
            if (TextTransfer.getInstance().isSupportedType(event.currentDataType) || RTFTransfer.getInstance().isSupportedType(event.currentDataType) || HTMLTransfer.getInstance().isSupportedType(event.currentDataType) || URLTransfer.getInstance().isSupportedType(event.currentDataType)) {
                strings = new String[] { (String) event.data };
            }
            if (FileTransfer.getInstance().isSupportedType(event.currentDataType)) {
                strings = (String[]) event.data;
            }
            if (strings == null || strings.length == 0) {
                dropConsole.append("!!Invalid data dropped");
                return;
            }
            if (strings.length == 1 && (dropControlType == TABLE || dropControlType == TREE || dropControlType == LIST)) {
                // convert string separated by "\n" into an array of strings
                String string = strings[0];
                int count = 0;
                int offset = string.indexOf("\n", 0);
                while (offset > 0) {
                    count++;
                    offset = string.indexOf("\n", offset + 1);
                }
                if (count > 0) {
                    strings = new String[count + 1];
                    int start = 0;
                    int end = string.indexOf("\n");
                    int index = 0;
                    while (start < end) {
                        strings[index++] = string.substring(start, end);
                        start = end + 1;
                        end = string.indexOf("\n", start);
                        if (end == -1)
                            end = string.length();
                    }
                }
            }
            switch(dropControlType) {
                case BUTTON_CHECK:
                case BUTTON_TOGGLE:
                case BUTTON_RADIO:
                    {
                        Button b = (Button) dropControl;
                        b.setText(strings[0]);
                        break;
                    }
                case STYLED_TEXT:
                    {
                        StyledText text = (StyledText) dropControl;
                        for (String string : strings) {
                            text.insert(string);
                        }
                        break;
                    }
                case TABLE:
                    {
                        Table table = (Table) dropControl;
                        Point p = event.display.map(null, table, event.x, event.y);
                        TableItem dropItem = table.getItem(p);
                        int index = dropItem == null ? table.getItemCount() : table.indexOf(dropItem);
                        for (String string : strings) {
                            TableItem item = new TableItem(table, SWT.NONE, index);
                            item.setText(0, string);
                            item.setText(1, "dropped item");
                        }
                        TableColumn[] columns = table.getColumns();
                        for (TableColumn column : columns) {
                            column.pack();
                        }
                        break;
                    }
                case TEXT:
                    {
                        Text text = (Text) dropControl;
                        for (String string : strings) {
                            text.append(string + "\n");
                        }
                        break;
                    }
                case TREE:
                    {
                        Tree tree = (Tree) dropControl;
                        Point p = event.display.map(null, tree, event.x, event.y);
                        TreeItem parentItem = tree.getItem(p);
                        for (String string : strings) {
                            TreeItem item = parentItem != null ? new TreeItem(parentItem, SWT.NONE) : new TreeItem(tree, SWT.NONE);
                            item.setText(string);
                        }
                        break;
                    }
                case CANVAS:
                    {
                        dropControl.setData("STRINGS", strings);
                        dropControl.redraw();
                        break;
                    }
                case LABEL:
                    {
                        Label label = (Label) dropControl;
                        label.setText(strings[0]);
                        break;
                    }
                case LIST:
                    {
                        List list = (List) dropControl;
                        for (String string : strings) {
                            list.add(string);
                        }
                        break;
                    }
                case COMBO:
                    {
                        Combo combo = (Combo) dropControl;
                        combo.setText(strings[0]);
                        break;
                    }
                default:
                    throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED);
            }
        }

        @Override
        public void dropAccept(DropTargetEvent event) {
            dropConsole.append(">>dropAccept\n");
            printEvent(event);
        }
    });
}

Example 13 with SWTError

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

the class ImageAnalyzer method menuSave.

void menuSave() {
    if (image == null)
        return;
    // stop any animation in progress
    animate = false;
    // so we have to use 'Save As...'.
    if (imageData.type == SWT.IMAGE_UNDEFINED || fileName == null) {
        menuSaveAs();
        return;
    }
    Cursor waitCursor = display.getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);
    imageCanvas.setCursor(waitCursor);
    try {
        // Save the current image to the current file.
        loader.data = new ImageData[] { imageData };
        if (imageData.type == SWT.IMAGE_JPEG)
            loader.compression = compressionCombo.indexOf(compressionCombo.getText()) + 1;
        if (imageData.type == SWT.IMAGE_PNG)
            loader.compression = compressionCombo.indexOf(compressionCombo.getText());
        loader.save(fileName, imageData.type);
    } catch (SWTException e) {
        showErrorDialog(bundle.getString("Saving_lc"), fileName, e);
    } catch (SWTError e) {
        showErrorDialog(bundle.getString("Saving_lc"), fileName, e);
    } finally {
        shell.setCursor(null);
        imageCanvas.setCursor(crossCursor);
    }
}

Example 14 with SWTError

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

the class ImageAnalyzer method showErrorDialog.

/*
	 * Open an error dialog displaying the specified information.
	 */
void showErrorDialog(String operation, String filename, Throwable e) {
    MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
    String message = createMsg(bundle.getString("Error"), new String[] { operation, filename });
    String errorMessage = "";
    if (e != null) {
        if (e instanceof SWTException) {
            SWTException swte = (SWTException) e;
            errorMessage = swte.getMessage();
            if (swte.throwable != null) {
                errorMessage += ":\n" + swte.throwable.toString();
            }
        } else if (e instanceof SWTError) {
            SWTError swte = (SWTError) e;
            errorMessage = swte.getMessage();
            if (swte.throwable != null) {
                errorMessage += ":\n" + swte.throwable.toString();
            }
        } else {
            errorMessage = e.toString();
        }
    }
    box.setMessage(message + errorMessage);
    box.open();
}

Example 15 with SWTError

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

the class ImageAnalyzer method menuPrint.

void menuPrint() {
    if (image == null)
        return;
    try {
        // Ask the user to specify the printer.
        PrintDialog dialog = new PrintDialog(shell, SWT.NONE);
        if (printerData != null)
            dialog.setPrinterData(printerData);
        printerData = dialog.open();
        if (printerData == null)
            return;
        Printer printer = new Printer(printerData);
        Point screenDPI = display.getDPI();
        Point printerDPI = printer.getDPI();
        int scaleFactor = printerDPI.x / screenDPI.x;
        Rectangle trim = printer.computeTrim(0, 0, 0, 0);
        if (printer.startJob(currentName)) {
            if (printer.startPage()) {
                GC gc = new GC(printer);
                int transparentPixel = imageData.transparentPixel;
                if (transparentPixel != -1 && !transparent) {
                    imageData.transparentPixel = -1;
                }
                Image printerImage = new Image(printer, imageData);
                gc.drawImage(printerImage, 0, 0, imageData.width, imageData.height, -trim.x, -trim.y, scaleFactor * imageData.width, scaleFactor * imageData.height);
                if (transparentPixel != -1 && !transparent) {
                    imageData.transparentPixel = transparentPixel;
                }
                printerImage.dispose();
                gc.dispose();
                printer.endPage();
            }
            printer.endJob();
        }
        printer.dispose();
    } catch (SWTError e) {
        MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
        box.setMessage(bundle.getString("Printing_error") + e.getMessage());
        box.open();
    }
}