Java JComponent Width calculateCharWidth(JComponent component, int numChars)

Description

calculate Char Width

License

Apache License

Declaration

public static int calculateCharWidth(JComponent component, int numChars) 

Method Source Code

//package com.java2s;
/*/* www  .j  a v  a 2  s  .  c o m*/
 * WbSwingUtilities.java
 *
 * This file is part of SQL Workbench/J, http://www.sql-workbench.net
 *
 * Copyright 2002-2015, Thomas Kellerer
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License 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 License for the specific language governing permissions and
 * limitations under the License.
 *
 * To contact the author please send an email to: support@sql-workbench.net
 *
 */

import javax.swing.*;

import java.awt.*;

public class Main {
    public static int calculateCharWidth(JComponent component, int numChars) {
        if (numChars < 0)
            return -1;
        if (component == null)
            return -1;

        int width = -1;
        Font font = component.getFont();
        if (font != null) {
            FontMetrics fm = component.getFontMetrics(font);
            int charWidth = fm.stringWidth("M");
            width = charWidth * numChars;
        }
        return width;
    }
}

Related

1. addComponent(Container container, JComponent component, int xPos, int yPos, int width, int height, double weightX, double weightY, int insetTop, int insetLeft, int insetBottom, int insetRight, int anchor, int stretch)
2. adjustNarrowField(final JComponent component, final int width)
3. adjustWidth(JComponent aComponent, int aWidth)
4. allignBottom(JComponent lead, JComponent target, int width, int height)
5. clearWidth(JComponent comp)
6. clipString(final JComponent component, final String string, final int avaiableWidth)
7. clipStringifNeeded(final JComponent component, final String string, final int avaiableWidth)
8. createTitledPanel(JComponent component, String title, int width, int height)