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

Example 1 with SWTError

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

the class TextViewerDeleteLineTarget method deleteLine.

/**
 * Deletes the lines that intersect with the given <code>selection</code>.
 *
 * @param document the document
 * @param selection the selection to use to determine the document range to delete
 * @param type the line deletion type, must be one of
 * 	<code>WHOLE_LINE</code>, <code>TO_BEGINNING</code> or <code>TO_END</code>
 * @param copyToClipboard <code>true</code> if the deleted line should be copied to the clipboard
 * @throws BadLocationException if position is not valid in the given document
 * @since 3.5
 */
public void deleteLine(IDocument document, ITextSelection selection, int type, boolean copyToClipboard) throws BadLocationException {
    IRegion deleteRegion = getDeleteRegion(document, selection, type);
    int deleteOffset = deleteRegion.getOffset();
    int deleteLength = deleteRegion.getLength();
    if (deleteLength == 0)
        return;
    if (copyToClipboard) {
        fClipboard.checkState();
        try {
            fClipboard.append(document.get(deleteOffset, deleteLength));
        } catch (SWTError e) {
            if (e.code != DND.ERROR_CANNOT_SET_CLIPBOARD)
                throw e;
            // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=59459
            // don't delete if copy to clipboard fails, rather log & abort
            // log
            Status status = new Status(IStatus.ERROR, TextEditorPlugin.PLUGIN_ID, e.code, EditorMessages.Editor_error_clipboard_copy_failed_message, e);
            TextEditorPlugin.getDefault().getLog().log(status);
            fClipboard.uninstall();
            // don't delete
            return;
        }
        fClipboard.setDeleting(true);
        // $NON-NLS-1$
        document.replace(deleteOffset, deleteLength, "");
        fClipboard.setDeleting(false);
        fClipboard.saveState();
    } else {
        // $NON-NLS-1$
        document.replace(deleteOffset, deleteLength, "");
    }
}

Example 2 with SWTError

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

the class ImageAnalyzer method menuSaveMaskAs.

void menuSaveMaskAs() {
    if (image == null || !showMask)
        return;
    if (imageData.getTransparencyType() == SWT.TRANSPARENCY_NONE)
        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)
        fileChooser.setFileName(fileName);
    fileChooser.setFilterExtensions(SAVE_FILTER_EXTENSIONS);
    fileChooser.setFilterNames(SAVE_FILTER_NAMES);
    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 mask of the current image to the specified file.
        ImageData maskImageData = imageData.getTransparencyMask();
        loader.data = new ImageData[] { maskImageData };
        loader.save(filename, 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 3 with SWTError

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

the class ImageAnalyzer method menuOpenFile.

void menuOpenFile() {
    // stop any animation in progress
    animate = false;
    // Get the user to choose an image file.
    FileDialog fileChooser = new FileDialog(shell, SWT.OPEN);
    if (lastPath != null)
        fileChooser.setFilterPath(lastPath);
    fileChooser.setFilterExtensions(OPEN_FILTER_EXTENSIONS);
    fileChooser.setFilterNames(OPEN_FILTER_NAMES);
    String filename = fileChooser.open();
    lastPath = fileChooser.getFilterPath();
    if (filename == null)
        return;
    showFileType(filename);
    Cursor waitCursor = display.getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);
    imageCanvas.setCursor(waitCursor);
    ImageLoader oldLoader = loader;
    try {
        loader = new ImageLoader();
        if (incremental) {
            // Prepare to handle incremental events.
            loader.addImageLoaderListener(event -> incrementalDataLoaded(event));
            incrementalThreadStart();
        }
        // Read the new image(s) from the chosen file.
        long startTime = System.currentTimeMillis();
        imageDataArray = loader.load(filename);
        loadTime = System.currentTimeMillis() - startTime;
        if (imageDataArray.length > 0) {
            // Cache the filename.
            currentName = filename;
            fileName = filename;
            // If there are multiple images in the file (typically GIF)
            // then enable the Previous, Next and Animate buttons.
            previousButton.setEnabled(imageDataArray.length > 1);
            nextButton.setEnabled(imageDataArray.length > 1);
            animateButton.setEnabled(imageDataArray.length > 1 && loader.logicalScreenWidth > 0 && loader.logicalScreenHeight > 0);
            // Display the first image in the file.
            imageDataIndex = 0;
            displayImage(imageDataArray[imageDataIndex]);
        }
    } catch (SWTException e) {
        showErrorDialog(bundle.getString("Loading_lc"), filename, e);
        loader = oldLoader;
    } catch (SWTError e) {
        showErrorDialog(bundle.getString("Loading_lc"), filename, e);
        loader = oldLoader;
    } catch (OutOfMemoryError e) {
        showErrorDialog(bundle.getString("Loading_lc"), filename, e);
        loader = oldLoader;
    } finally {
        shell.setCursor(null);
        imageCanvas.setCursor(crossCursor);
    }
}

Example 4 with SWTError

use of org.eclipse.swt.SWTError 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 5 with SWTError

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

the class ImageAnalyzer method menuLoad.

/* Just use Image(device, filename) to load an image file. */
void menuLoad() {
    // stop any animation in progress
    animate = false;
    // Get the user to choose an image file.
    FileDialog fileChooser = new FileDialog(shell, SWT.OPEN);
    if (lastPath != null)
        fileChooser.setFilterPath(lastPath);
    fileChooser.setFilterExtensions(OPEN_FILTER_EXTENSIONS);
    fileChooser.setFilterNames(OPEN_FILTER_NAMES);
    String filename = fileChooser.open();
    lastPath = fileChooser.getFilterPath();
    if (filename == null)
        return;
    Cursor waitCursor = display.getSystemCursor(SWT.CURSOR_WAIT);
    shell.setCursor(waitCursor);
    imageCanvas.setCursor(waitCursor);
    try {
        // Read the new image from the chosen file.
        long startTime = System.currentTimeMillis();
        Image newImage = new Image(display, filename);
        // don't include getImageData in load time
        loadTime = System.currentTimeMillis() - startTime;
        imageData = newImage.getImageData();
        // Cache the filename.
        currentName = filename;
        fileName = filename;
        // Fill in array and loader data.
        loader = new ImageLoader();
        imageDataArray = new ImageData[] { imageData };
        loader.data = imageDataArray;
        // Display the image.
        imageDataIndex = 0;
        displayImage(imageData);
    } catch (SWTException e) {
        showErrorDialog(bundle.getString("Loading_lc"), filename, e);
    } catch (SWTError e) {
        showErrorDialog(bundle.getString("Loading_lc"), filename, e);
    } catch (OutOfMemoryError e) {
        showErrorDialog(bundle.getString("Loading_lc"), filename, e);
    } finally {
        shell.setCursor(null);
        imageCanvas.setCursor(crossCursor);
    }
}