javax.microedition.lcdui.Displayable Maven / Gradle / Ivy
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/*
* MicroEmulator
* Copyright (C) 2001 Bartek Teodorczyk
*
* It is licensed under the following two licenses as alternatives:
* 1. GNU Lesser General Public License (the "LGPL") version 2.1 or any newer version
* 2. Apache License (the "AL") Version 2.0
*
* You may not use this file except in compliance with at least one of
* the above two licenses.
*
* You may obtain a copy of the LGPL at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
*
* You may obtain a copy of the AL 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 LGPL or the AL for the specific language governing permissions and
* limitations.
*/
package javax.microedition.lcdui;
import java.util.Vector;
import org.microemu.device.Device;
import org.microemu.device.DeviceFactory;
import org.microemu.device.ui.CommandUI;
import org.microemu.device.ui.DisplayableUI;
public abstract class Displayable
{
Device device;
Display currentDisplay = null;
int width;
int height;
boolean fullScreenMode;
Ticker ticker;
// TODO make private
int viewPortY;
// TODO make private
int viewPortHeight;
DisplayableUI ui;
private String title;
private CommandListener listener = null;
Displayable(String title)
{
this.device = DeviceFactory.getDevice();
this.width = -1;
this.height = -1;
this.fullScreenMode = false;
this.title = title;
}
void setUI(DisplayableUI ui) {
this.ui = ui;
}
public void addCommand(Command cmd) {
ui.addCommandUI(cmd.ui);
}
public void removeCommand(Command cmd)
{
ui.removeCommandUI(cmd.ui);
}
public int getWidth()
{
if (width == -1) {
if (fullScreenMode) {
width = device.getDeviceDisplay().getFullWidth();
} else {
width = device.getDeviceDisplay().getWidth();
}
}
return width;
}
public int getHeight()
{
if (height == -1) {
if (fullScreenMode) {
height = device.getDeviceDisplay().getFullHeight();
} else {
height= device.getDeviceDisplay().getHeight();
}
}
return height;
}
public boolean isShown()
{
if (currentDisplay == null) {
return false;
}
return currentDisplay.isShown(this);
}
public Ticker getTicker()
{
return ticker;
}
public void setTicker(Ticker ticker)
{
this.ticker = ticker;
repaint();
}
public String getTitle()
{
return title;
}
public void setTitle(String s)
{
this.title = s;
// TODO move to the native UI component
ui.invalidate();
}
public void setCommandListener(CommandListener l)
{
listener = l;
ui.setCommandListener(l);
}
CommandListener getCommandListener()
{
return listener;
}
Vector getCommands()
{
// in Form this is overridden to allow for the inclusion of item contained commands
Vector result = new Vector();
Vector commandsUI = ui.getCommandsUI();
for (int i = 0; i < commandsUI.size(); i++) {
result.addElement(((CommandUI) commandsUI.elementAt(i)).getCommand());
}
return result;
}
void hideNotify()
{
}
final void hideNotify(Display d)
{
ui.hideNotify();
hideNotify();
}
void keyPressed(int keyCode)
{
}
void keyRepeated(int keyCode)
{
}
void keyReleased(int keyCode)
{
}
void pointerPressed(int x, int y)
{
}
void pointerReleased(int x, int y)
{
}
void pointerDragged(int x, int y)
{
}
abstract void paint(Graphics g);
void repaint()
{
if (currentDisplay != null) {
repaint(0, 0, getWidth(), getHeight());
}
}
void repaint(int x, int y, int width, int height)
{
if (currentDisplay != null) {
currentDisplay.repaint(this, x, y, width, height);
}
}
protected void sizeChanged(int w, int h)
{
}
final void sizeChanged(Display d)
{
width = -1;
height = -1;
sizeChanged(getWidth(), getHeight());
}
void showNotify()
{
}
final void showNotify(Display d)
{
currentDisplay = d;
viewPortY = 0;
// TODO remove this StringComponent object when native UI is completed
StringComponent title = new StringComponent(getTitle());
viewPortHeight = getHeight() - title.getHeight() - 1;
if (ticker != null) {
viewPortHeight -= this.ticker.getHeight();
}
int w;
int h;
if (fullScreenMode) {
w = device.getDeviceDisplay().getFullWidth();
} else {
w = device.getDeviceDisplay().getWidth();
}
if (fullScreenMode) {
h = device.getDeviceDisplay().getFullHeight();
} else {
h = device.getDeviceDisplay().getHeight();
}
if (width != w || height != h) {
sizeChanged(d);
}
showNotify();
ui.showNotify();
}
}