Examples with SWTException - org.eclipse.swt.SWTException

Example 46 with SWTException

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

the class Test_org_eclipse_swt_browser_Browser method test_LocationListener_evaluateInCallback.

/**
 *  This test replicates what happens internally
 *  if you click on a link in a javadoc popup hoverbox.
 *  I.e, in a location listener, evaluation() is performed.
 *
 *  The goal of this test is to ensure there are no 'Freezes'/deadlocks if
 *  javascript evaluation is invoked inside an SWT listener.
 *
 *  At time of writing, it also highlights that evaluation inside SWT listeners
 *  is not consistent across browsers.
 */
@Test
public void test_LocationListener_evaluateInCallback() {
    assumeTrue(isWebkit2 || SwtTestUtil.isCocoa || SwtTestUtil.isWindows);
    // On Webki1 this test works, but is prone to crashes. See Bug 509411
    AtomicBoolean changingFinished = new AtomicBoolean(false);
    AtomicBoolean changedFinished = new AtomicBoolean(false);
    browser.addLocationListener(new LocationListener() {

        @Override
        public void changing(LocationEvent event) {
            // Broken on Webkit1. I.e evaluate() in a 'changing()' signal doesn't do anything.
            browser.evaluate("SWTchanging = true");
            changingFinished.set(true);
        }

        @Override
        public void changed(LocationEvent event) {
            browser.evaluate("SWTchanged = true");
            changedFinished.set(true);
        }
    });
    browser.setText("<body>Hello <b>World</b></body>");
    // Wait till both listeners were fired.
    if (SwtTestUtil.isWindows) {
        // Windows doesn't reach changedFinished.get();
        waitForPassCondition(changingFinished::get);
    } else
        waitForPassCondition(() -> (changingFinished.get() && changedFinished.get()));
    // Inspect if evaluate() was executed correctly.
    Boolean changed = false;
    try {
        changed = (Boolean) browser.evaluate("return SWTchanged");
    } catch (SWTException e) {
    }
    Boolean changing = false;
    try {
        changing = (Boolean) browser.evaluate("return SWTchanging");
    } catch (SWTException e) {
    }
    String errMsg = "\n  changing:  fired:" + changingFinished.get() + "    evaluated:" + changing + "\n  changed:   fired:" + changedFinished.get() + "    evaluated:" + changed;
    boolean passed = false;
    if (isWebkit2) {
        // Evaluation works in all cases.
        passed = changingFinished.get() && changedFinished.get() && changed && changing;
    } else if (isWebkit1) {
        // On Webkit1, evaluation in 'changing' fails.
        // && changing (broken)
        passed = changingFinished.get() && changedFinished.get() && changed;
    } else if (SwtTestUtil.isCocoa) {
        // On Cocoa, evaluation in 'changing' fails.
        // && changing (broken)
        passed = changingFinished.get() && changedFinished.get() && changed;
    } else if (SwtTestUtil.isWindows) {
        // On Windows, evaluation inside SWT listeners fails altogether.
        // Further, only 'changing' is fired if evaluation is invoked inside listeners.
        passed = changingFinished.get();
    }
    assertTrue(errMsg, passed);
}

Also used : AtomicBoolean(java.util.concurrent.atomic.AtomicBoolean) SWTException(org.eclipse.swt.SWTException) LocationListener(org.eclipse.swt.browser.LocationListener) AtomicBoolean(java.util.concurrent.atomic.AtomicBoolean) LocationEvent(org.eclipse.swt.browser.LocationEvent) Test(org.junit.Test)

Example 47 with SWTException

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

the class Test_org_eclipse_swt_graphics_Image method test_ConstructorLorg_eclipse_swt_graphics_DeviceLjava_lang_String.

@Test
public void test_ConstructorLorg_eclipse_swt_graphics_DeviceLjava_lang_String() {
    String fileName = null;
    try {
        Image image = new Image(display, fileName);
        image.dispose();
        fail("No exception thrown for file name == null");
    } catch (IllegalArgumentException e) {
        assertSWTProblem("Incorrect exception thrown for file name == null", SWT.ERROR_NULL_ARGUMENT, e);
    }
    try {
        String pathName = "nonexistent.txt";
        Image image = new Image(display, pathName);
        image.dispose();
        fail("No exception thrown for non-existent file name");
    } catch (SWTException e) {
        assertSWTProblem("Incorrect exception thrown for non-existent file name", SWT.ERROR_IO, e);
    }
    try {
        String pathName = getPath("empty.txt");
        Image image = new Image(display, pathName);
        image.dispose();
        fail("No exception thrown for invalid file name");
    } catch (SWTException e) {
        assertSWTProblem("Incorrect exception thrown for invalid file name", SWT.ERROR_UNSUPPORTED_FORMAT, e);
    }
    int numFormats = SwtTestUtil.imageFormats.length;
    fileName = SwtTestUtil.invalidImageFilenames[0];
    Display[] displays = { display, null };
    for (int j = 0; j < displays.length; j++) {
        // Display tempDisplay = displays[j];
        for (int i = 0; i < numFormats; i++) {
            String format = SwtTestUtil.imageFormats[i];
            try {
                String pathName = getPath(fileName + "." + format);
                Image image = new Image(display, pathName);
                image.dispose();
                fail("No exception thrown for invalid file name");
            } catch (SWTException e) {
            // Bug 70167 - Image(Device, InputStream) throws incorrect exception for bad PNG
            // remove comment when bug is fixed.
            // assertEquals("Incorrect exception thrown for invalid image file name", SWT.ERROR_INVALID_IMAGE, e);
            }
        }
    }
    try {
        String pathName = getPath(SwtTestUtil.invalidImageFilenames[1]);
        Image image = new Image(display, pathName);
        image.dispose();
        fail("No exception thrown for invalid file name");
    } catch (SWTException e) {
        assertSWTProblem("Incorrect exception thrown for invalid image file name", SWT.ERROR_INVALID_IMAGE, e);
    }
    // create valid images
    for (int j = 0; j < displays.length; j++) {
        // Display tempDisplay = displays[j];
        int numFileNames = SwtTestUtil.imageFilenames.length;
        for (int k = 0; k < numFileNames; k++) {
            fileName = SwtTestUtil.imageFilenames[k];
            for (int i = 0; i < numFormats; i++) {
                String format = SwtTestUtil.imageFormats[i];
                String pathName = getPath(fileName + "." + format);
                Image image = new Image(display, pathName);
                image.dispose();
            }
        }
    }
}

Also used : SWTException(org.eclipse.swt.SWTException) Image(org.eclipse.swt.graphics.Image) Display(org.eclipse.swt.widgets.Display) Test(org.junit.Test)

Example 48 with SWTException

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

the class Test_org_eclipse_swt_graphics_Image method test_getImageDataCurrentZoom.

@SuppressWarnings("deprecation")
@Test
public void test_getImageDataCurrentZoom() {
    Rectangle bounds = new Rectangle(0, 0, 10, 20);
    Image image = new Image(display, bounds.width, bounds.height);
    image.dispose();
    try {
        image.getImageDataAtCurrentZoom();
        fail("No exception thrown for disposed image");
    } catch (SWTException e) {
        assertSWTProblem("Incorrect exception thrown for disposed image", SWT.ERROR_GRAPHIC_DISPOSED, e);
    }
    // creates bitmap image and compare size of imageData
    image = new Image(display, bounds.width, bounds.height);
    ImageData imageDataAtCurrentZoom = image.getImageDataAtCurrentZoom();
    image.dispose();
    Rectangle boundsAtCurrentZoom = new Rectangle(0, 0, imageDataAtCurrentZoom.width, imageDataAtCurrentZoom.height);
    assertEquals(":a: Size of ImageData returned from Image.getImageDataAtCurrentZoom method doesn't return matches with bounds in Pixel values.", boundsAtCurrentZoom, DPIUtil.autoScaleUp(bounds));
    // create icon image and compare size of imageData
    ImageData imageData = new ImageData(bounds.width, bounds.height, 1, new PaletteData(new RGB[] { new RGB(0, 0, 0) }));
    image = new Image(display, imageData);
    imageDataAtCurrentZoom = image.getImageDataAtCurrentZoom();
    image.dispose();
    boundsAtCurrentZoom = new Rectangle(0, 0, imageDataAtCurrentZoom.width, imageDataAtCurrentZoom.height);
    assertEquals(":b: Size of ImageData returned from Image.getImageDataAtCurrentZoom method doesn't return matches with bounds in Pixel values.", boundsAtCurrentZoom, DPIUtil.autoScaleUp(bounds));
    // create image with FileNameProvider
    image = new Image(display, imageFileNameProvider);
    imageDataAtCurrentZoom = image.getImageDataAtCurrentZoom();
    boundsAtCurrentZoom = new Rectangle(0, 0, imageDataAtCurrentZoom.width, imageDataAtCurrentZoom.height);
    bounds = image.getBounds();
    image.dispose();
    assertEquals(":c: Size of ImageData returned from Image.getImageDataAtCurrentZoom method doesn't return matches with bounds in Pixel values.", boundsAtCurrentZoom, DPIUtil.autoScaleUp(bounds));
    // create image with ImageDataProvider
    image = new Image(display, imageDataProvider);
    imageDataAtCurrentZoom = image.getImageDataAtCurrentZoom();
    boundsAtCurrentZoom = new Rectangle(0, 0, imageDataAtCurrentZoom.width, imageDataAtCurrentZoom.height);
    bounds = image.getBounds();
    image.dispose();
    assertEquals(":d: Size of ImageData returned from Image.getImageDataAtCurrentZoom method doesn't return matches with bounds in Pixel values.", boundsAtCurrentZoom, DPIUtil.autoScaleUp(bounds));
}

Also used : PaletteData(org.eclipse.swt.graphics.PaletteData) SWTException(org.eclipse.swt.SWTException) ImageData(org.eclipse.swt.graphics.ImageData) Rectangle(org.eclipse.swt.graphics.Rectangle) Image(org.eclipse.swt.graphics.Image) RGB(org.eclipse.swt.graphics.RGB) Test(org.junit.Test)

Example 49 with SWTException

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

the class Test_org_eclipse_swt_graphics_Image method getImageData_int.

void getImageData_int(int zoom) {
    Rectangle bounds = new Rectangle(0, 0, 10, 20);
    Image image = new Image(display, bounds.width, bounds.height);
    image.dispose();
    try {
        image.getImageData(zoom);
        fail("No exception thrown for disposed image");
    } catch (SWTException e) {
        assertSWTProblem("Incorrect exception thrown for disposed image", SWT.ERROR_GRAPHIC_DISPOSED, e);
    }
    // creates bitmap image and compare size of imageData
    image = new Image(display, bounds.width, bounds.height);
    ImageData imageDataAtZoom = image.getImageData(zoom);
    image.dispose();
    Rectangle boundsAtZoom = new Rectangle(0, 0, imageDataAtZoom.width, imageDataAtZoom.height);
    assertEquals(":a: Size of ImageData returned from Image.getImageData(int) method doesn't return matches with bounds in Pixel values.", scaleBounds(bounds, zoom, 100), boundsAtZoom);
    // create icon image and compare size of imageData
    ImageData imageData = new ImageData(bounds.width, bounds.height, 1, new PaletteData(new RGB[] { new RGB(0, 0, 0) }));
    image = new Image(display, imageData);
    imageDataAtZoom = image.getImageData(zoom);
    image.dispose();
    boundsAtZoom = new Rectangle(0, 0, imageDataAtZoom.width, imageDataAtZoom.height);
    assertEquals(":b: Size of ImageData returned from Image.getImageData(int) method doesn't return matches with bounds in Pixel values.", scaleBounds(bounds, zoom, 100), boundsAtZoom);
    // create image with FileNameProvider
    image = new Image(display, imageFileNameProvider);
    imageDataAtZoom = image.getImageData(zoom);
    boundsAtZoom = new Rectangle(0, 0, imageDataAtZoom.width, imageDataAtZoom.height);
    bounds = image.getBounds();
    image.dispose();
    assertEquals(":c: Size of ImageData returned from Image.getImageData(int) method doesn't return matches with bounds in Pixel values.", scaleBounds(bounds, zoom, 100), boundsAtZoom);
    // create image with ImageDataProvider
    image = new Image(display, imageDataProvider);
    imageDataAtZoom = image.getImageData(zoom);
    boundsAtZoom = new Rectangle(0, 0, imageDataAtZoom.width, imageDataAtZoom.height);
    bounds = image.getBounds();
    image.dispose();
    assertEquals(":d: Size of ImageData returned from Image.getImageData(int) method doesn't return matches with bounds in Pixel values.", scaleBounds(bounds, zoom, 100), boundsAtZoom);
}

Example 50 with SWTException

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

the class Test_org_eclipse_swt_graphics_Image method test_getBoundsInPixels.

@SuppressWarnings("deprecation")
@Test
public void test_getBoundsInPixels() {
    Rectangle bounds = new Rectangle(0, 0, 10, 20);
    Image image = new Image(display, bounds.width, bounds.height);
    image.dispose();
    try {
        image.getBoundsInPixels();
        fail("No exception thrown for disposed image");
    } catch (SWTException e) {
        assertSWTProblem("Incorrect exception thrown for disposed image", SWT.ERROR_GRAPHIC_DISPOSED, e);
    }
    // creates bitmap image
    image = new Image(display, bounds.width, bounds.height);
    Rectangle boundsInPixels = image.getBoundsInPixels();
    image.dispose();
    assertEquals(":a: Image.getBoundsInPixels method doesn't return bounds in Pixel values.", boundsInPixels, DPIUtil.autoScaleUp(bounds));
    // create icon image
    ImageData imageData = new ImageData(bounds.width, bounds.height, 1, new PaletteData(new RGB[] { new RGB(0, 0, 0) }));
    image = new Image(display, imageData);
    boundsInPixels = image.getBoundsInPixels();
    image.dispose();
    assertEquals(":b: Image.getBoundsInPixels method doesn't return bounds in Pixel values.", boundsInPixels, DPIUtil.autoScaleUp(bounds));
    // create image with FileNameProvider
    image = new Image(display, imageFileNameProvider);
    boundsInPixels = image.getBoundsInPixels();
    bounds = image.getBounds();
    image.dispose();
    assertEquals(":c: Image.getBoundsInPixels method doesn't return bounds in Pixel values.", boundsInPixels, DPIUtil.autoScaleUp(bounds));
    // create image with ImageDataProvider
    image = new Image(display, imageDataProvider);
    boundsInPixels = image.getBoundsInPixels();
    bounds = image.getBounds();
    image.dispose();
    assertEquals(":d: Image.getBoundsInPixels method doesn't return bounds in Pixel values.", boundsInPixels, DPIUtil.autoScaleUp(bounds));
}

Aggregations

SWTException (org.eclipse.swt.SWTException)57 Test (org.junit.Test)29 Image (org.eclipse.swt.graphics.Image)21 Rectangle (org.eclipse.swt.graphics.Rectangle)14 ImageData (org.eclipse.swt.graphics.ImageData)13 IOException (java.io.IOException)8 Region (org.eclipse.swt.graphics.Region)8 Display (org.eclipse.swt.widgets.Display)8 SWTError (org.eclipse.swt.SWTError)7 PaletteData (org.eclipse.swt.graphics.PaletteData)7 RGB (org.eclipse.swt.graphics.RGB)7 InputStream (java.io.InputStream)6 Point (org.eclipse.swt.graphics.Point)6 MessageBox (org.eclipse.swt.widgets.MessageBox)5 AtomicBoolean (java.util.concurrent.atomic.AtomicBoolean)4 Cursor (org.eclipse.swt.graphics.Cursor)4 ImageLoader (org.eclipse.swt.graphics.ImageLoader)4 FileDialog (org.eclipse.swt.widgets.FileDialog)4 ByteArrayInputStream (java.io.ByteArrayInputStream)3 Shell (org.eclipse.swt.widgets.Shell)3