Examples with Component com.codename1.ui.Component used on opensource projects

Example 16 with Component

use of com.codename1.ui.Component in project CodenameOne by codenameone.

the class LazyValueC method restoreComponentState.

/**
 * By default Codename One stores the states of components in the navigation graph
 * as it moves between forms. However, some components aren't recognized by Codename One
 * by default to enable smaller executable size. This method can be overriden to enable
 * storing the state of custom components
 *
 * @param c the component whose state should be restored
 * @param destination the hashtable containing the state
 */
protected void restoreComponentState(Component c, Hashtable destination) {
    if (shouldAutoStoreState()) {
        Enumeration e = destination.keys();
        while (e.hasMoreElements()) {
            String currentKey = (String) e.nextElement();
            Component cmp = findByName(currentKey, c);
            if (cmp != null) {
                Object value = destination.get(currentKey);
                if (value instanceof Integer) {
                    if (cmp instanceof List) {
                        ((List) cmp).setSelectedIndex(((Integer) value).intValue());
                        continue;
                    }
                    if (cmp instanceof Tabs) {
                        int val = ((Integer) value).intValue();
                        Tabs t = (Tabs) cmp;
                        if (t.getTabCount() > val) {
                            t.setSelectedIndex(val);
                        }
                        continue;
                    }
                }
                cmp.setComponentState(value);
            }
        }
    }
}

Example 17 with Component

use of com.codename1.ui.Component in project CodenameOne by codenameone.

the class LazyValueC method setContainerStateImpl.

private void setContainerStateImpl(Container cnt, Hashtable state) {
    if (state != null) {
        restoreComponentState(cnt, state);
        String cmpName = (String) state.get(FORM_STATE_KEY_FOCUS);
        if (cmpName == null) {
            return;
        }
        Component c = findByName(cmpName, cnt);
        if (c != null) {
            c.requestFocus();
            if (c instanceof List) {
                Integer i = (Integer) state.get(FORM_STATE_KEY_SELECTION);
                if (i != null) {
                    ((List) c).setSelectedIndex(i.intValue());
                }
            }
        }
    }
}

Example 18 with Component

use of com.codename1.ui.Component in project CodenameOne by codenameone.

the class LazyValueC method formToContainer.

Container formToContainer(Form f) {
    Container cnt = new Container(f.getContentPane().getLayout());
    if (f.getContentPane().getLayout() instanceof BorderLayout || f.getContentPane().getLayout() instanceof TableLayout) {
        while (f.getContentPane().getComponentCount() > 0) {
            Component src = f.getContentPane().getComponentAt(0);
            Object o = f.getContentPane().getLayout().getComponentConstraint(src);
            f.getContentPane().removeComponent(src);
            cnt.addComponent(o, src);
        }
    } else {
        while (f.getContentPane().getComponentCount() > 0) {
            Component src = f.getContentPane().getComponentAt(0);
            f.getContentPane().removeComponent(src);
            cnt.addComponent(src);
        }
    }
    return cnt;
}

Example 19 with Component

use of com.codename1.ui.Component in project CodenameOne by codenameone.

the class LazyValueC method createComponentType.

Component createComponentType(String name) throws IllegalAccessException, InstantiationException, RuntimeException {
    Class c = (Class) getComponentRegistry().get(name);
    Component cmp = createComponentInstance(name, c);
    if (cmp == null) {
        if (c == null) {
            throw new RuntimeException("Component not found use UIBuilder.registerCustomComponent(" + name + ", class);");
        }
        cmp = (Component) c.newInstance();
    }
    return cmp;
}

Example 20 with Component

use of com.codename1.ui.Component in project CodenameOne by codenameone.

the class LazyValueC method back.

/**
 * This method effectively pops the form navigation stack and goes back
 * to the previous form if back navigation is enabled and there is
 * a previous form.
 *
 * @param sourceComponent the component that triggered the back command which effectively
 * allows us to find the EmbeddedContainer for a case of container navigation. Null
 * can be used if not applicable.
 */
public void back(Component sourceComponent) {
    Vector formNavigationStack = getFormNavigationStackForComponent(sourceComponent);
    if (formNavigationStack != null && formNavigationStack.size() > 0) {
        Hashtable h = (Hashtable) formNavigationStack.elementAt(formNavigationStack.size() - 1);
        if (h.containsKey(FORM_STATE_KEY_CONTAINER)) {
            Form currentForm = Display.getInstance().getCurrent();
            if (currentForm != null) {
                exitForm(currentForm);
            }
        }
        String formName = (String) h.get(FORM_STATE_KEY_NAME);
        if (!h.containsKey(FORM_STATE_KEY_CONTAINER)) {
            Form f = (Form) createContainer(fetchResourceFile(), formName);
            initBackForm(f);
            onBackNavigation();
            beforeShow(f);
            f.showBack();
            postShowImpl(f);
        } else {
            showContainerImpl(formName, null, sourceComponent, true);
        }
    }
}