/**
* EyelidFieldDemoScreen.java
*
* Copyright � 1998-2011 Research In Motion Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Note: For the sake of simplicity, this sample application may not leverage
* resource bundles and resource strings. However, it is STRONGLY recommended
* that application developers make use of the localization features available
* within the BlackBerry development platform to ensure a seamless application
* experience across a variety of languages and geographies. For more information
* on localizing your application, please refer to the BlackBerry Java Development
* Environment Development Guide associated with this release.
*/
package com.rim.samples.device.ui.eyelidfielddemo;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.VirtualKeyboard;
import net.rim.device.api.ui.component.BasicEditField;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.CheckboxField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.SeparatorField;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.extension.container.EyelidFieldManager;
/**
* The main screen class for the Eyelid Field Demo
*/
public final class EyelidFieldDemoScreen extends MainScreen implements
FieldChangeListener {
private final EyelidFieldManager _eyelidFieldManager;
private final CheckboxField _lockCheckbox;
private final CheckboxField _showOnInputCheckbox;
/**
* Creates a new EyelidFieldDemoScreen object
*/
public EyelidFieldDemoScreen() {
super(NO_VERTICAL_SCROLL);
_eyelidFieldManager = new EyelidFieldManager();
// Change the display time from the default 1.2s
_eyelidFieldManager.setEyelidDisplayTime(2000);
// Add components to the north eye-lid of the blinker
_eyelidFieldManager.addTop(new CustomLabelField("Eyelid Field Demo"));
_eyelidFieldManager.addTop(new SeparatorField());
_eyelidFieldManager.addTop(new CustomLabelField(
"You can add any fields..."));
_eyelidFieldManager.addTop(new CustomEditField("Type something here: ",
"abc", 100, BasicEditField.FILTER_DEFAULT));
// Add components to the south eye-lid of the blinker
_eyelidFieldManager.addBottom(new CustomLabelField(
"Here is a row of buttons..."));
final HorizontalFieldManager buttonPanel =
new HorizontalFieldManager(Field.FIELD_HCENTER
| Field.USE_ALL_WIDTH);
buttonPanel.add(new SimpleButton("ABC"));
buttonPanel.add(new SimpleButton("123"));
buttonPanel.add(new SimpleButton("XYZ"));
_eyelidFieldManager.addBottom(buttonPanel);
// Add checkbox in non-eyelid region for showing eyelids on user input
_showOnInputCheckbox =
new CheckboxField("Show eyelids on user input", true,
Field.FIELD_HCENTER);
_showOnInputCheckbox.setChangeListener(this);
_eyelidFieldManager.add(_showOnInputCheckbox, 0, 85);
// Add checkbox in non-eyelid region for locking the eyelids
_lockCheckbox =
new CheckboxField("Lock eyelids", false, Field.FIELD_HCENTER);
_lockCheckbox.setChangeListener(this);
_eyelidFieldManager.add(_lockCheckbox, 0, 115);
add(_eyelidFieldManager);
_showOnInputCheckbox.setFocus();
// Disable virtual keyboard so it doesn't obscure bottom eyelid
final VirtualKeyboard keyboard = getVirtualKeyboard();
if (keyboard != null) {
keyboard.setVisibility(VirtualKeyboard.IGNORE);
}
}
/**
* @see FieldChangeListener#fieldChanged(Field, int)
*/
public void fieldChanged(final Field field, final int context) {
if (field == _lockCheckbox) {
if (_lockCheckbox.getChecked()) {
// Lock the eyelids
_eyelidFieldManager.setEyelidDisplayTime(0);
_eyelidFieldManager.setEyelidsVisible(true);
} else {
// Unlock the eyelids
_eyelidFieldManager.setEyelidDisplayTime(2000);
_eyelidFieldManager.setEyelidsVisible(false);
}
} else if (field == _showOnInputCheckbox) {
if (_showOnInputCheckbox.getChecked()) {
// Show the eyelids when user input detected
_eyelidFieldManager.showOnInput(true);
} else {
// Don't show the eyelids when user input detected
_eyelidFieldManager.showOnInput(false);
}
}
}
/**
* @see MainScreen#onSavePrompt()
*/
public boolean onSavePrompt() {
// Suppress the save dialog
return true;
}
/**
* An edit field in which the paint() method is overridden so as to change
* the foreground color of the text.
*/
private static final class CustomEditField extends BasicEditField {
/**
* Constructs a new CustomEditField object
*
* @param label
* Label for this field
* @param initialValue
* Initial text to show in the field
* @param maxNumChars
* Maximum number of characters this field can hold
* @param style
* Styles for this field
*/
CustomEditField(final String label, final String initialValue,
final int maxNumChars, final long style) {
super(label, initialValue, maxNumChars, style);
}
/**
* @see BasicEditField#paint(Graphics)
*/
public void paint(final Graphics graphics) {
graphics.setColor(Color.WHITE);
super.paint(graphics);
}
}
/**
* A label field in which the paint() method is overridden so as to change
* the foreground color of the text.
*/
private static final class CustomLabelField extends LabelField {
/**
* Constructs a new CustomLabelField object
*
* @param text
* The text to display on the label
*/
CustomLabelField(final String text) {
super(text);
}
/**
* @see LabelField#paint(Graphics)
*/
public void paint(final Graphics graphics) {
graphics.setColor(Color.WHITE);
super.paint(graphics);
}
}
/**
* A button that pops up a dialog when clicked
*/
private static final class SimpleButton extends ButtonField {
FieldChangeListener buttonClickListener = new FieldChangeListener() {
public void fieldChanged(final Field field, final int context) {
Dialog.alert(getLabel() + " clicked!");
}
};
SimpleButton(final String label) {
super(label, ButtonField.CONSUME_CLICK);
setChangeListener(buttonClickListener);
}
}
}