javax.microedition.lcdui.Ticker Maven / Gradle / Ivy
/*
* 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.
*
* Contributor(s):
* 3GLab
*/
package javax.microedition.lcdui;
import org.microemu.DisplayAccess;
import org.microemu.MIDletBridge;
public class Ticker
{
static int PAINT_TIMEOUT = 250;
static int PAINT_MOVE = 5;
static int PAINT_GAP = 10;
Ticker instance = null;
String text;
int textPos = 0;
int resetTextPosTo = -1;
public Ticker(String str)
{
if (str == null) {
throw new NullPointerException();
}
instance = this;
text = str;
}
public String getString()
{
return text;
}
public void setString(String str)
{
if (str == null) {
throw new NullPointerException();
}
text = str;
}
int getHeight()
{
return Font.getDefaultFont().getHeight();
}
int paintContent(Graphics g)
{
Font f = Font.getDefaultFont();
synchronized (instance) {
int stringWidth = f.stringWidth(text) + PAINT_GAP;
g.drawString(text, textPos, 0, Graphics.LEFT | Graphics.TOP);
int xPos = textPos + stringWidth;
DisplayAccess da = MIDletBridge.getMIDletAccess().getDisplayAccess();
while (xPos < da.getCurrent().getWidth()) {
g.drawString(text, xPos, 0, Graphics.LEFT | Graphics.TOP);
xPos += stringWidth;
}
if (textPos + stringWidth < 0) {
resetTextPosTo = textPos + stringWidth;
}
}
return f.getHeight();
}
}