Get Max Fitting FontSize : TextPane « Swing JFC « Java
Get Max Fitting FontSize
/**
* The utillib library.
* More information is available at http://www.jinchess.com/.
* Copyright (C) 2002 Alexander Maryanovsky.
* All rights reserved.
*
* The utillib 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 of the
* License, or (at your option) any later version.
*
* The utillib 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 utillib library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
import java.awt.*;
/**
* Provides graphics related utilities.
*/
public class GraphicsUtilities{
/**
* Calculates the largest size of the given font for which the given string
* will fit into the given size. This method uses the default toolkit.
*/
public static int getMaxFittingFontSize(Graphics g, Font font, String string, Dimension size){
return getMaxFittingFontSize(g, font, string, size.width, size.height);
}
/**
* Calculates the largest size of the given font for which the given string
* will fit into the given size.
*/
public static int getMaxFittingFontSize(Graphics g, Font font, String string, int width, int height){
int minSize = 0;
int maxSize = 288;
int curSize = font.getSize();
while (maxSize - minSize > 2){
FontMetrics fm = g.getFontMetrics(new Font(font.getName(), font.getStyle(), curSize));
int fontWidth = fm.stringWidth(string);
int fontHeight = fm.getLeading() + fm.getMaxAscent() + fm.getMaxDescent();
if ((fontWidth > width) || (fontHeight > height)){
maxSize = curSize;
curSize = (maxSize + minSize) / 2;
}
else{
minSize = curSize;
curSize = (minSize + maxSize) / 2;
}
}
return curSize;
}
/**
* Returns the <code>FontMetrics</code> for the specified <code>Font</code>.
*/
public static FontMetrics getFontMetrics(Font font){
return Toolkit.getDefaultToolkit().getFontMetrics(font); // DEPRECATED
}
/**
* Returns <code>true</code> if the first rectangle completely contains the
* second one. Returns <code>false</code> otherwise. This method is needed
* because there is no Rectangle.contains(Rectangle) method in JDK 1.1
* (unlike claimed in the 1.2 documentation).
*/
public static boolean contains(Rectangle rect1, Rectangle rect2){
return (rect2.x >= rect1.x) &&
(rect2.y >= rect1.y) &&
(rect2.x+rect2.width <= rect1.x+rect1.width) &&
(rect2.y+rect2.height <= rect1.y+rect1.height);
}
/**
* Returns true if the two specified rectangles intersect. Two rectangles
* intersect if their intersection is nonempty. This method is not really
* needed because Rectangle.intersects(Rectangle) exists in JDK1.1, but I
* still like having it here for symmetry.
*/
public static boolean intersect(Rectangle rect1, Rectangle rect2){
return rect1.intersects(rect2);
}
}
