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

Example 26 with SWTException

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

the class Test_org_eclipse_swt_widgets_TableColumn method test_setMoveableZ.

@Test
public void test_setMoveableZ() {
    assertFalse(":a:", tableColumn.getMoveable());
    tableColumn.setMoveable(true);
    assertTrue(":b:", tableColumn.getMoveable());
    tableColumn.setMoveable(true);
    assertTrue(":c:", tableColumn.getMoveable());
    tableColumn.setMoveable(false);
    assertFalse(":d:", tableColumn.getMoveable());
    TableColumn tableColumn2 = new TableColumn(tableColumn.getParent(), SWT.NONE);
    tableColumn2.dispose();
    try {
        tableColumn2.getMoveable();
        fail("No exception thrown for widget is Disposed");
    } catch (SWTException ex) {
    }
    try {
        tableColumn2.setMoveable(true);
        fail("No exception thrown for widget is Disposed");
    } catch (SWTException ex) {
    }
}

Example 27 with SWTException

use of org.eclipse.swt.SWTException in project jop by jop-devel.

the class JOPBoardConfigurationTab method handleQuartusProjectButtonSelected.

/**
     * Handle selection of the Quartus project file button. 
     *
     */
protected void handleQuartusProjectButtonSelected() {
    FileDialog dialog = new FileDialog(getShell());
    IPath rootPath = fQuartusProjectLocation != null ? fQuartusProjectLocation.removeLastSegments(1) : ResourcesPlugin.getWorkspace().getRoot().getLocation();
    dialog.setFilterPath(rootPath.toString());
    dialog.setFilterExtensions(new String[] { "*.qpf" });
    try {
        dialog.open();
        if (dialog.getFileName().equals("")) {
            return;
        }
        IPath filterPath = new Path(dialog.getFilterPath());
        IPath fileName = new Path(dialog.getFileName());
        fQuartusProjectLocation = filterPath.append(fileName);
        fQuartusProjectText.setText(fQuartusProjectLocation.toString());
    } catch (SWTException e) {
    }
}

Example 28 with SWTException

use of org.eclipse.swt.SWTException in project cogtool by cogtool.

the class FrameUIModel method addFrameChangeListeners.

/**
     * Add listeners for when things change on the frame.
     */
protected void addFrameChangeListeners() {
    AlertHandler frameChangeHandler = new AlertHandler() {

        public void handleAlert(EventObject alert) {
            Frame.WidgetChange chg = (Frame.WidgetChange) alert;
            IWidget chgWidget = chg.getChangeElement();
            if (chg != null) {
                // action dictated by the change.
                switch(chg.action) {
                    // Add the graphical representation of the widget
                    case Frame.WidgetChange.ELEMENT_ADD:
                        createGraphicalWidget(chgWidget);
                        raiseAlert(new FrameUIModel.WidgetShapeImageChange(FrameUIModel.this, chgWidget));
                        break;
                    // Remove the graphical representation of the widget
                    case Frame.WidgetChange.ELEMENT_DELETE:
                        removeWidget(chgWidget);
                        raiseAlert(new FrameUIModel.WidgetShapeImageChange(FrameUIModel.this, chgWidget));
                        break;
                    // Update all existing widgets to the new color
                    case Frame.WidgetChange.WIDGET_COLORS_CHANGED:
                        Iterator<GraphicalWidget<?>> gws = figureList.values().iterator();
                        // Update graphical widgets
                        while (gws.hasNext()) {
                            GraphicalWidget<?> gw = gws.next();
                            gw.setColor(frame.getWidgetColor());
                        //                                    gw.setFastMode(false);
                        }
                        // Update potential temporary widget
                        contents.setWidgetColor(frame.getWidgetColor());
                        break;
                }
            }
            // Draw the viewable widgets.
            // Adds any new items from the lists.. or moves them
            drawWidgets();
        }
    };
    // Add the new handler for frame changes to the list of things to
    // alert to changes on the frame
    frame.addHandler(this, Frame.WidgetChange.class, frameChangeHandler);
    // A separate handler is required to take care of changes of the
    // background on the frame.
    AlertHandler frameBackgroundChangeHandler = new AlertHandler() {

        public void handleAlert(EventObject alert) {
            Frame.BackgroundImageChange chg = (Frame.BackgroundImageChange) alert;
            if (chg != null) {
                // Dispose the old background image if there was one
                if (backgroundImage.getImage() != null) {
                    backgroundImage.getImage().dispose();
                }
                byte[] bgImg = frame.getBackgroundImage();
                // If the image is null, don't create it.
                if (bgImg != null) {
                    // the cache is probably out of date
                    try {
                        Image img = new Image(null, new ByteArrayInputStream(bgImg));
                        //                                AUIModel.imageCache.put(frame, img);
                        // set the new image to the background
                        backgroundImage.setImage(img);
                        // get the size of the image
                        org.eclipse.swt.graphics.Rectangle bounds = img.getBounds();
                        // resize background image with the new bounds
                        backgroundImage.setSize(bounds.width, bounds.height);
                    } catch (SWTException ex) {
                        throw new GraphicsUtil.ImageException("Setting frame background image failed", ex);
                    }
                } else {
                    // Clear the background image.
                    backgroundImage.setImage(null);
                    backgroundImage.setSize(0, 0);
                }
            }
            drawWidgets();
            // Need to raise Alert after draw widgets since
            // the alert call seems to reset the "bounds"
            raiseAlert(new FrameUIModel.WidgetShapeImageChange(FrameUIModel.this, null));
        }
    };
    // Add this handler to the list for changes in the background image
    frame.addHandler(this, Frame.BackgroundImageChange.class, frameBackgroundChangeHandler);
}

Example 29 with SWTException

use of org.eclipse.swt.SWTException in project cogtool by cogtool.

the class FrameUIModel method setUpFrameContents.

/**
     * Set up the contents of the frame.
     * This creates the scalable figure and sets the initial scaling.
     *
     * The layout manager is also created with an XYLayout to allow absolute
     * positioning of elements.
     *
     * All structures needed to support drawing and selecting objects are
     * created here.
     *
     * @param double Scale: used to set the initial size of the contents.
     */
protected void setUpFrameContents(double scale) {
    // Set up the content pane
    // Create the underlying contents pane.
    // And set the contents pane's default widget color.
    contents = new ScalableFrameFigure(frame.getWidgetColor());
    contents.setScale(scale);
    contents.setLayoutManager(new XYLayout());
    // Create a new graphical widget for each widget in Frame.
    Iterator<IWidget> modelWidgets = frame.getWidgets().iterator();
    while (modelWidgets.hasNext()) {
        IWidget w = modelWidgets.next();
        createGraphicalWidget(w);
    }
    // Initialize the background image
    backgroundImage = new ImageFigure();
    final byte[] bgImg = frame.getBackgroundImage();
    if (bgImg != null) {
        if (lazyLoading) {
            // Use a thread to load the image, then set it later
            ThreadManager.IWorkThread imageLoadThread = new CogToolWorkThread() {

                protected Image img = null;

                public void doWork() {
                    // Performed by the scheduled thread
                    img = new Image(null, new ByteArrayInputStream(bgImg));
                }

                @Override
                public void doneCallback() {
                    // Performed by the main UI thread
                    if (img != null) {
                        if (isDisposed) {
                            img.dispose();
                        } else {
                            backgroundImage.setImage(img);
                        }
                    }
                    // TODO: We might want to add a real logging package
                    if (exBucket.containsExceptions()) {
                        // TODO: It is unclear what to do here.  Maybe
                        // we should just replace failed images with red
                        // Xs rather than popping up a dialog box
                        System.err.println(exBucket);
                    //                                RcvrExceptionHandler.recoverWorkThread(this,
                    //                                                                       interaction);
                    }
                }
            };
            ThreadManager.startNewThread(imageLoadThread, 2);
        } else {
            try {
                // = AUIModel.imageCache.get(frame);
                Image img = null;
                if (img == null) {
                    img = new Image(null, new ByteArrayInputStream(bgImg));
                //                        AUIModel.imageCache.put(frame, img);
                }
                backgroundImage.setImage(img);
            } catch (SWTException ex) {
                throw new GraphicsUtil.ImageException("Setting frame background image failed", ex);
            }
        }
        backgroundImage.setBounds(PrecisionUtilities.getDraw2DRectangle(frame.getBackgroundBounds()));
    }
    // Always align the picture to top left corner
    backgroundImage.setAlignment(PositionConstants.NORTH | PositionConstants.WEST);
    // Resize to preferred size.
    DoubleSize s = getPreferredSize();
    // Set the size of the contents area to fit all elements.
    contents.setSize(PrecisionUtilities.round(s.width), PrecisionUtilities.round(s.height));
    // Draw all widgets.
    drawWidgets();
}

Example 30 with SWTException

use of org.eclipse.swt.SWTException in project cogtool by cogtool.

the class GraphicalDevice method paintFigure.

/**
     * Override to perform drawing tasks common to all graphical sources
     */
@Override
protected void paintFigure(Graphics g) {
    Dimension size = getSize();
    // Workaround Draw2D's inability to draw 0-size images.
    int width = size.width;
    if (width == 0) {
        width = 1;
    }
    int height = size.height;
    if (height == 0) {
        height = 1;
    }
    Image scaled = null;
    try {
        // Draw foreground sheen (not selected)
        foreground.setAlpha(0, 0, displayAlpha.determineAlpha(false));
        // TODO: Can this be cached more efficiently?
        scaled = new Image(null, foreground.scaledTo(width, height));
        Point location = getLocation();
        g.drawImage(scaled, location.x, location.y);
    } catch (SWTException ex) {
        throw new RcvrImageException("Drawing device foreground image failed", ex);
    } finally {
        if (scaled != null) {
            scaled.dispose();
        }
    }
    super.paintFigure(g);
    button.paintFigure(g);
}