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package NET.worlds.console;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.util.StringTokenizer;
public class MultiLineLabel extends Canvas {
private static final long serialVersionUID = -3840151921412552795L;
public static final int LEFT = 0;
public static final int CENTER = 1;
public static final int RIGHT = 2;
protected String[] lines;
protected int num_lines;
protected int margin_width;
protected int margin_height;
protected int line_height;
protected int line_ascent;
protected int[] line_widths;
protected int max_width;
protected int alignment = 0;
protected void newLabel(String label) {
StringTokenizer t = new StringTokenizer(label, "\n");
this.num_lines = t.countTokens();
this.lines = new String[this.num_lines];
this.line_widths = new int[this.num_lines];
for (int i = 0; i < this.num_lines; i++) {
this.lines[i] = t.nextToken();
}
}
protected void measure() {
FontMetrics fm = this.getFontMetrics(this.getFont());
if (fm != null) {
this.line_height = fm.getHeight();
this.line_ascent = fm.getAscent();
this.max_width = 0;
for (int i = 0; i < this.num_lines; i++) {
this.line_widths[i] = fm.stringWidth(this.lines[i]);
if (this.line_widths[i] > this.max_width) {
this.max_width = this.line_widths[i];
}
}
}
}
public MultiLineLabel(String label, int margin_width, int margin_height, int alignment) {
this.newLabel(label);
this.margin_width = margin_width;
this.margin_height = margin_height;
this.alignment = alignment;
}
public MultiLineLabel(String label, int margin_width, int margin_height) {
this(label, margin_width, margin_height, 0);
}
public MultiLineLabel(String label, int alignment) {
this(label, 10, 10, alignment);
}
public MultiLineLabel(String label) {
this(label, 10, 10, 0);
}
public MultiLineLabel() {
this("", 10, 10, 0);
}
public void setLabel(String label) {
this.newLabel(label);
this.measure();
this.repaint();
}
public String getLabel() {
if (this.lines.length == 0) {
return "";
} else {
String s = this.lines[0];
for (int i = 1; i < this.lines.length; i++) {
s = s + "\n" + this.lines[i];
}
return s;
}
}
@Override
public void setFont(Font f) {
super.setFont(f);
this.measure();
this.repaint();
}
@Override
public void setForeground(Color c) {
super.setForeground(c);
this.repaint();
}
public void setAlignment(int a) {
this.alignment = a;
this.repaint();
}
public void setMarginWidth(int mw) {
this.margin_width = mw;
this.repaint();
}
public void setMarginHeight(int mh) {
this.margin_height = mh;
this.repaint();
}
public int getAlignment() {
return this.alignment;
}
public int getMarginWidth() {
return this.margin_width;
}
public int getMarginHeight() {
return this.margin_height;
}
public int getLines() {
return this.num_lines;
}
@Override
public void addNotify() {
super.addNotify();
this.measure();
}
@Override
public Dimension preferredSize() {
return new Dimension(this.max_width + 2 * this.margin_width, this.num_lines * this.line_height + 2 * this.margin_height);
}
@Override
public Dimension minimumSize() {
return this.preferredSize();
}
@Override
public void paint(Graphics g) {
Dimension d = this.getSize();
int y = this.line_ascent + (d.height - this.num_lines * this.line_height) / 2;
for (int i = 0; i < this.num_lines; y += this.line_height) {
int x;
switch (this.alignment) {
case 0:
x = this.margin_width;
break;
case 1:
default:
x = (d.width - this.line_widths[i]) / 2;
break;
case 2:
x = d.width - this.margin_width - this.line_widths[i];
}
g.drawString(this.lines[i], x, y);
i++;
}
}
}
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