Examples of com.vaadin.server.Resource

com.vaadin.server.Resource
Resource provided to the client terminal. Support for actually displaying the resource type is left to the terminal. @author Vaadin Ltd. @since 3.0


    protected void paintItem(PaintTarget target, Object itemId)
            throws PaintException {
        final String key = itemIdMapper.key(itemId);
        final String caption = getItemCaption(itemId);
        final Resource icon = getItemIcon(itemId);
        if (icon != null) {
            target.addAttribute("icon", icon);
        }
        target.addAttribute("caption", caption);
        if (itemId != null && itemId.equals(getNullSelectionItemId())) {

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     * @param itemId
     *            the id of the item to be assigned an icon.
     * @return the icon for the item or null, if not specified.
     */
    public Resource getItemIcon(Object itemId) {
        final Resource explicit = itemIcons.get(itemId);
        if (explicit != null) {
            return explicit;
        }


        if (getItemIconPropertyId() == null) {

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                }


                // Gets the option attribute values
                final String key = itemIdMapper.key(id);
                final String caption = getItemCaption(id);
                final Resource icon = getItemIcon(id);
                getCaptionChangeListener().addNotifierForItem(id);


                // Paints the option
                target.startTag("so");
                if (icon != null) {

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                                        + imgNum + ".jpg");
                        Thread.sleep(50);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    Resource resource = new ClassResource(
                            "/com/example/simpletable/img/px50-" + imgNum
                                    + ".jpg");
                    Embedded image = new Embedded("", resource);
                    image.setWidth("50px");
                    image.setHeight("50px");

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    public void moveComponentsFrom(ComponentContainer source) {
        for (final Iterator<Component> i = source.getComponentIterator(); i
                .hasNext();) {
            final Component c = i.next();
            String caption = null;
            Resource icon = null;
            String iconAltText = "";
            if (TabSheet.class.isAssignableFrom(source.getClass())) {
                Tab tab = ((TabSheet) source).getTab(c);
                caption = tab.getCaption();
                icon = tab.getIcon();

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        return name;
    }


    private String resourceToKey(Resource resource) {
        for (String key : getState().imageResIds) {
            Resource res = getResource(key);
            if (res.equals(resource)) {
                return key;
            }
        }
        return null;
    }

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    public static Resource getIcon(String fileName) {
        return getIconByMimeType(getMIMEType(fileName));
    }


    private static Resource getIconByMimeType(String mimeType) {
        final Resource icon = MIMEToIconMap.get(mimeType);
        if (icon != null) {
            return icon;
        }


        // If nothing is known about the file-type, general file

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        setComponentAlignment(image, Alignment.TOP_CENTER);


        for (int i = 0; i < resources.size(); ++i) {
            final Button button = new Button("Pic " + (i + 1));
            buttonLayout.addComponent(button);
            final Resource res = resources.get(i);
            button.addClickListener(new Button.ClickListener() {


                @Override
                public void buttonClick(ClickEvent event) {
                    image.showResource(res);

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    @Override
    protected void paintRowIcon(PaintTarget target, Object[][] cells,
            int indexInRowbuffer) throws PaintException {
        // always paint if present (in parent only if row headers visible)
        if (getRowHeaderMode() == ROW_HEADER_MODE_HIDDEN) {
            Resource itemIcon = getItemIcon(cells[CELL_ITEMID][indexInRowbuffer]);
            if (itemIcon != null) {
                target.addAttribute("icon", itemIcon);
            }
        } else if (cells[CELL_ICON][indexInRowbuffer] != null) {
            target.addAttribute("icon",

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    protected void paintItem(PaintTarget target, Object itemId)
            throws PaintException {
        final String key = itemIdMapper.key(itemId);
        final String caption = getItemCaption(itemId);
        final Resource icon = getItemIcon(itemId);
        if (icon != null) {
            target.addAttribute("icon", icon);
        }
        target.addAttribute("caption", caption);
        if (itemId != null && itemId.equals(getNullSelectionItemId())) {

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