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/*
* MicroEmulator
* Copyright (C) 2001 Bartek Teodorczyk
* Copyright (C) 2005 Andres Navarro
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package javax.microedition.lcdui;
public class ImageItem extends Item
{
public static final int LAYOUT_DEFAULT = 0;
public static final int LAYOUT_LEFT = 1;
public static final int LAYOUT_RIGHT = 2;
public static final int LAYOUT_CENTER = 3;
public static final int LAYOUT_NEWLINE_BEFORE = 0x100;
public static final int LAYOUT_NEWLINE_AFTER = 0x200;
public static final int PLAIN = 0;
public static final int HYPERLINK = 1;
public static final int BUTTON = 2;
Image img;
String altText;
private int appearanceMode;
public ImageItem(String label, Image img, int layout, String altText) {
this(label, img, layout, altText, ImageItem.PLAIN);
}
public ImageItem(String label, Image img, int layout, String altText,
int appearanceMode)
{
super(label);
// may throw IllegalArgumentException
// (that is the intentended behaviour)
setLayout(layout);
if (appearanceMode != ImageItem.PLAIN &&
appearanceMode != ImageItem.PLAIN &&
appearanceMode != ImageItem.PLAIN)
throw new IllegalArgumentException();
setImage(img);
this.altText = altText;
this.appearanceMode = appearanceMode;
}
public String getAltText()
{
return altText;
}
public int getAppearanceMode() {
return this.appearanceMode;
}
public Image getImage()
{
return img;
}
public int getLayout()
{
return super.getLayout();
}
public void setAltText(String text)
{
altText = text;
}
public void setImage(Image img)
{
if (img != null && img.isMutable()) {
img = Image.createImage(img);
}
this.img = img;
repaint();
}
public void setLayout(int layout)
{
super.setLayout(layout);
}
int getHeight()
{
if (img == null) {
return super.getHeight();
} else {
return super.getHeight() + img.getHeight();
}
}
int paint(Graphics g)
{
super.paintContent(g);
if (img != null) {
g.translate(0, super.getHeight());
if (layout == LAYOUT_DEFAULT || layout == LAYOUT_LEFT) {
g.drawImage(img, 0, 0, Graphics.LEFT | Graphics.TOP);
} else if (layout == LAYOUT_RIGHT) {
g.drawImage(img, owner.getWidth(), 0,
Graphics.RIGHT | Graphics.TOP);
} else if (layout == LAYOUT_CENTER) {
g.drawImage(img, owner.getWidth() / 2, 0,
Graphics.HCENTER | Graphics.TOP);
} else {
g.drawImage(img, 0, 0, Graphics.LEFT | Graphics.TOP);
}
g.translate(0, -super.getHeight());
}
return getHeight();
}
int traverse(int gameKeyCode, int top, int bottom, boolean action)
{
Font f = Font.getDefaultFont();
if (gameKeyCode == Canvas.UP) {
if (top > 0) {
if ((top % f.getHeight()) == 0) {
return -f.getHeight();
} else {
return -(top % f.getHeight());
}
} else {
return Item.OUTOFITEM;
}
}
if (gameKeyCode == Canvas.DOWN) {
if (bottom < getHeight()) {
if (getHeight() - bottom < f.getHeight()) {
return getHeight() - bottom;
} else {
return f.getHeight();
}
} else {
return Item.OUTOFITEM;
}
}
return 0;
}
}
