Examples with ImageData org.eclipse.swt.graphics.ImageData used on opensource projects

Example 36 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class ImageAnalyzer method menuReopen.

void menuReopen() {
    if (currentName == null)
        return;
    // stop any animation in progress
    animate = false;
    Cursor waitCursor = display.getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);
    imageCanvas.setCursor(waitCursor);
    try {
        loader = new ImageLoader();
        ImageData[] newImageData;
        if (fileName == null) {
            URL url = new URL(currentName);
            try (InputStream stream = url.openStream()) {
                long startTime = System.currentTimeMillis();
                newImageData = loader.load(stream);
                loadTime = System.currentTimeMillis() - startTime;
            }
        } else {
            long startTime = System.currentTimeMillis();
            newImageData = loader.load(fileName);
            loadTime = System.currentTimeMillis() - startTime;
        }
        imageDataIndex = 0;
        displayImage(newImageData[imageDataIndex]);
    } catch (Exception e) {
        showErrorDialog(bundle.getString("Reloading_lc"), currentName, e);
    } catch (OutOfMemoryError e) {
        showErrorDialog(bundle.getString("Reloading_lc"), currentName, e);
    } finally {
        shell.setCursor(null);
        imageCanvas.setCursor(crossCursor);
    }
}

Example 37 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class ImageAnalyzer method menuSaveAs.

void menuSaveAs() {
    if (image == null)
        return;
    // stop any animation in progress
    animate = false;
    // Get the user to choose a file name and type to save.
    FileDialog fileChooser = new FileDialog(shell, SWT.SAVE);
    fileChooser.setFilterPath(lastPath);
    if (fileName != null) {
        String name = fileName;
        int nameStart = name.lastIndexOf(java.io.File.separatorChar);
        if (nameStart > -1) {
            name = name.substring(nameStart + 1);
        }
        fileChooser.setFileName(name.substring(0, name.indexOf(".")) + "." + imageTypeCombo.getText().toLowerCase());
    }
    fileChooser.setFilterExtensions(SAVE_FILTER_EXTENSIONS);
    fileChooser.setFilterNames(SAVE_FILTER_NAMES);
    switch(imageTypeCombo.getSelectionIndex()) {
        case 0:
            fileChooser.setFilterIndex(4);
            break;
        case 1:
            fileChooser.setFilterIndex(5);
            break;
        case 2:
            fileChooser.setFilterIndex(2);
            break;
        case 3:
            fileChooser.setFilterIndex(3);
            break;
        case 4:
            fileChooser.setFilterIndex(6);
            break;
        case 5:
            fileChooser.setFilterIndex(0);
            break;
    }
    String filename = fileChooser.open();
    lastPath = fileChooser.getFilterPath();
    if (filename == null)
        return;
    // Figure out what file type the user wants saved.
    int filetype = fileChooser.getFilterIndex();
    if (filetype == -1) {
        /* The platform file dialog does not support user-selectable file filters.
			 * Determine the desired type by looking at the file extension.
			 */
        filetype = determineFileType(filename);
        if (filetype == SWT.IMAGE_UNDEFINED) {
            MessageBox box = new MessageBox(shell, SWT.ICON_ERROR);
            box.setMessage(createMsg(bundle.getString("Unknown_extension"), filename.substring(filename.lastIndexOf('.') + 1)));
            box.open();
            return;
        }
    }
    if (new java.io.File(filename).exists()) {
        MessageBox box = new MessageBox(shell, SWT.ICON_QUESTION | SWT.OK | SWT.CANCEL);
        box.setMessage(createMsg(bundle.getString("Overwrite"), filename));
        if (box.open() == SWT.CANCEL)
            return;
    }
    Cursor waitCursor = display.getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);
    imageCanvas.setCursor(waitCursor);
    try {
        // Save the current image to the specified file.
        boolean multi = false;
        if (loader.data.length > 1) {
            MessageBox box = new MessageBox(shell, SWT.ICON_QUESTION | SWT.YES | SWT.NO | SWT.CANCEL);
            box.setMessage(createMsg(bundle.getString("Save_all"), Integer.valueOf(loader.data.length)));
            int result = box.open();
            if (result == SWT.CANCEL)
                return;
            if (result == SWT.YES)
                multi = true;
        }
        /* If the image has transparency but the user has transparency turned off,
			 * turn it off in the saved image. */
        int transparentPixel = imageData.transparentPixel;
        if (!multi && transparentPixel != -1 && !transparent) {
            imageData.transparentPixel = -1;
        }
        if (!multi)
            loader.data = new ImageData[] { imageData };
        loader.compression = compressionCombo.indexOf(compressionCombo.getText());
        loader.save(filename, filetype);
        /* Restore the previous transparency setting. */
        if (!multi && transparentPixel != -1 && !transparent) {
            imageData.transparentPixel = transparentPixel;
        }
        // Update the shell title and file type label,
        // and use the new file.
        fileName = filename;
        shell.setText(createMsg(bundle.getString("Analyzer_on"), filename));
        typeLabel.setText(createMsg(bundle.getString("Type_string"), fileTypeString(filetype)));
    } 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 38 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class IconCache method getIconFromProgram.

/**
 * Gets an image for a file associated with a given program
 *
 * @param program the Program
 */
public Image getIconFromProgram(Program program) {
    Image image = iconCache.get(program);
    if (image == null) {
        ImageData imageData = program.getImageData();
        if (imageData != null) {
            image = new Image(null, imageData, imageData.getTransparencyMask());
            iconCache.put(program, image);
        } else {
            image = stockImages[iconFile];
        }
    }
    return image;
}

Example 39 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_graphics_GC method test_copyAreaLorg_eclipse_swt_graphics_ImageII.

@Test
public void test_copyAreaLorg_eclipse_swt_graphics_ImageII() {
    Color white = display.getSystemColor(SWT.COLOR_WHITE);
    Color blue = display.getSystemColor(SWT.COLOR_BLUE);
    RGB whiteRGB = getRealRGB(white);
    RGB blueRGB = getRealRGB(blue);
    gc.setBackground(white);
    gc.fillRectangle(image.getBounds());
    gc.setBackground(blue);
    gc.fillRectangle(5, 0, 6, 1);
    Image image = new Image(display, 12, 12);
    gc.copyArea(image, 0, 0);
    ImageData imageData = image.getImageData();
    PaletteData palette = imageData.palette;
    if (DPIUtil.getDeviceZoom() != 100) {
        // TODO Fix non integer scaling factors.
        if (SwtTestUtil.verbose) {
            System.out.println("Excluded test_copyAreaLorg_eclipse_swt_graphics_ImageII(org.eclipse.swt.tests.junit.Test_org_eclipse_swt_graphics_GC)");
        }
        image.dispose();
        return;
    }
    int pixel = imageData.getPixel(4, 0);
    assertEquals(":a:", whiteRGB, palette.getRGB(pixel));
    pixel = imageData.getPixel(5, 0);
    assertEquals(":b:", blueRGB, palette.getRGB(pixel));
    pixel = imageData.getPixel(10, 0);
    assertEquals(":c:", blueRGB, palette.getRGB(pixel));
    pixel = imageData.getPixel(11, 0);
    assertEquals(":d:", whiteRGB, palette.getRGB(pixel));
    image.dispose();
}

Example 40 with ImageData

use of org.eclipse.swt.graphics.ImageData in project eclipse.platform.swt by eclipse.

the class Test_org_eclipse_swt_graphics_GC method test_drawImageLorg_eclipse_swt_graphics_ImageIIIIIIII.

@Test
public void test_drawImageLorg_eclipse_swt_graphics_ImageIIIIIIII() {
    Color c1 = new Color(display, 255, 0, 0);
    Color c2 = new Color(display, 0, 0, 0);
    Color c3 = new Color(display, 255, 255, 0);
    PaletteData paletteData = new PaletteData(c1.getRGB(), c2.getRGB(), c3.getRGB());
    ImageData data = new ImageData(30, 30, 8, paletteData);
    for (int y = 0; y < data.height; y++) {
        for (int x = 0; x < data.width; x++) {
            if (x > y)
                data.setPixel(x, y, paletteData.getPixel(c1.getRGB()));
            else if (x < y)
                data.setPixel(x, y, paletteData.getPixel(c2.getRGB()));
            else
                data.setPixel(x, y, paletteData.getPixel(c3.getRGB()));
        }
    }
    Image image = new Image(display, data);
    data = image.getImageData();
    data.transparentPixel = paletteData.getPixel(c1.getRGB());
    Image imageTransparent = new Image(display, data);
    data.transparentPixel = -1;
    for (int y = 0; y < data.height; y++) {
        for (int x = 0; x < data.width; x++) {
            data.setAlpha(x, y, 127);
        }
    }
    Image imageAlpha = new Image(display, data);
    gc.drawImage(image, 10, 5, 20, 15, 100, 120, 50, 60);
    gc.drawImage(imageTransparent, 10, 5, 20, 15, 100, 120, 10, 10);
    gc.drawImage(imageAlpha, 10, 5, 20, 15, 100, 120, 20, 15);
    try {
        gc.drawImage(null, 10, 5, 20, 15, 100, 120, 50, 60);
        // should never get here
        fail("No exception thrown");
    } catch (IllegalArgumentException e) {
    }
    image.dispose();
    imageAlpha.dispose();
    imageTransparent.dispose();
    c1.dispose();
    c2.dispose();
    c3.dispose();
}