本文整理了Java中javax.swing.JTextArea.getFontMetrics()方法的一些代码示例，展示了JTextArea.getFontMetrics()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。JTextArea.getFontMetrics()方法的具体详情如下：
包路径：javax.swing.JTextArea
类名称：JTextArea
方法名：getFontMetrics

JTextArea.getFontMetrics介绍

暂无

代码示例

代码示例来源：origin: JetBrains/ideavim

private void positionPanel() {
 final JComponent contentComponent = myEditor.getContentComponent();
 Container scroll = SwingUtilities.getAncestorOfClass(JScrollPane.class, contentComponent);
 setSize(scroll.getSize());
 myLineHeight = myText.getFontMetrics(myText.getFont()).getHeight();
 int count = countLines(myText.getText());
 int visLines = getSize().height / myLineHeight - 1;
 int lines = Math.min(count, visLines);
 setSize(getSize().width, lines * myLineHeight + myLabel.getPreferredSize().height +
              getBorder().getBorderInsets(this).top * 2);
 int height = getSize().height;
 Rectangle bounds = scroll.getBounds();
 bounds.translate(0, scroll.getHeight() - height);
 bounds.height = height;
 Point pos = SwingUtilities.convertPoint(scroll.getParent(), bounds.getLocation(),
                     SwingUtilities.getRootPane(contentComponent).getGlassPane());
 bounds.setLocation(pos);
 setBounds(bounds);
 myScrollPane.getVerticalScrollBar().setValue(0);
 if (!Options.getInstance().isSet("more")) {
  // FIX
  scrollOffset(100000);
 }
 else {
  scrollOffset(0);
 }
}

代码示例来源：origin: RaiMan/SikuliX2

int w = width * ta.getFontMetrics(ta.getFont()).charWidth('m');
int h = (int) (lines * ta.getFontMetrics(ta.getFont()).getHeight());
ta.setPreferredSize(new Dimension(w, h));
ta.setMaximumSize(new Dimension(w, 2 * h));

代码示例来源：origin: bcdev/beam

private static int countLines(JTextArea component, String value, int max) {
    int lineCount = 0;
    FontMetrics fontMetrics = component.getFontMetrics(component.getFont());
    for (String s : value.split("\n")) {
      lineCount += 1 + fontMetrics.stringWidth(s) / max;
    }
    return lineCount;
  }
}

代码示例来源：origin: senbox-org/snap-desktop

private static int countLines(JTextArea component, String value, int max) {
    int lineCount = 0;
    FontMetrics fontMetrics = component.getFontMetrics(component.getFont());
    for (String s : value.split("\n")) {
      lineCount += 1 + fontMetrics.stringWidth(s) / max;
    }
    return lineCount;
  }
}

代码示例来源：origin: net.java.dev.swing-layout/swing-layout

private int getTextAreaBaseline(JTextArea text, int height) {
  Insets insets = text.getInsets();
  FontMetrics fm = text.getFontMetrics(text.getFont());
  return insets.top + fm.getAscent();
}

代码示例来源：origin: net.java.dev.swing-layout/swing-layout

private static int getTextAreaBaseline(JTextArea text, int height) {
  Insets insets = text.getInsets();
  FontMetrics fm = text.getFontMetrics(text.getFont());
  return insets.top + fm.getAscent();
}

代码示例来源：origin: jpcsp/jpcsp

public void RefreshMemory() {
  int addr = startaddress;
  taMemoryView.setText("");
  visiblelines = taMemoryView.getHeight() / taMemoryView.getFontMetrics(taMemoryView.getFont()).getHeight();
  for (int y = 0; y < visiblelines; y++) {
    if (y > 0) {
      taMemoryView.append("\n");
    }
    taMemoryView.append(getMemoryView(addr));
    addr += 16;
  }
}

代码示例来源：origin: net.java.openjdk.cacio/cacio-shared

@Override
public Dimension getPreferredSize(int rows, int columns) {
  Font f = textArea.getFont();
  FontMetrics fm = textArea.getFontMetrics(f);
  int w = fm.charWidth('m') * columns;
  int h = fm.getHeight() * rows;
  Dimension spSize = getSwingComponent().getMinimumSize();
  spSize.width += w;
  spSize.height += h;
  return spSize;
}

代码示例来源：origin: com.sikulix/sikulixapi

int w = (width + pluswidth) * ta.getFontMetrics(ta.getFont()).charWidth('m');
int h = (lines + 1) * ta.getFontMetrics(ta.getFont()).getHeight();
ta.setText(text);
ta.setLineWrap(true);

代码示例来源：origin: net.java.dev.appframework/appframework

final JTextArea textArea = new JTextArea((String)message);
textArea.setFont(font);
int lh = textArea.getFontMetrics(font).getHeight();
Insets margin = new Insets(0, 0, lh, 24); // top left bottom right
textArea.setMargin(margin);

代码示例来源：origin: stackoverflow.com

public String formatText(JTextArea textArea)
{
  StringBuilder text = new StringBuilder( textArea.getText() );
  int lineHeight = textArea.getFontMetrics( textArea.getFont() ).getHeight();
  Point view = new Point(textArea.getWidth(), textArea.getInsets().top);
  int length = textArea.getDocument().getLength();
  int endOfLine = textArea.viewToModel(view);
  int lines = 0;

  while (endOfLine < length)
  {
    int adjustedEndOfLine = endOfLine + lines;

    if (text.charAt(adjustedEndOfLine) == ' ')
    {
      text.insert(adjustedEndOfLine + 1, '\n');
      lines++;
    }

    view.y += lineHeight;
    endOfLine = textArea.viewToModel(view);
  }

  return text.toString();
}

代码示例来源：origin: org.jdesktop.bsaf/bsaf

final JTextArea textArea = new JTextArea((String) message);
textArea.setFont(font);
int lh = textArea.getFontMetrics(font).getHeight();
Insets margin = new Insets(0, 0, lh, 24); // top left bottom right
textArea.setMargin(margin);

代码示例来源：origin: net.sf.ingenias/editor

int length = jta.getFontMetrics(GraphConstants.getFont(this.
  getAllAttributes())).stringWidth(text) + 10;
int height = jta.getFontMetrics(GraphConstants.getFont(this.
  getAllAttributes())).getHeight();
jta.setSize(length, height + 5);

代码示例来源：origin: stackoverflow.com

private static int countLines(JTextArea textArea)
{
  AttributedString text = new AttributedString(textArea.getText());
  text.addAttribute(TextAttribute.FONT, textArea.getFont());
  FontRenderContext frc = textArea.getFontMetrics(textArea.getFont()).getFontRenderContext();
  AttributedCharacterIterator charIt = text.getIterator();
  LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(charIt, frc);
  Insets textAreaInsets = textArea.getInsets();
  float formatWidth = textArea.getWidth() - textAreaInsets.left - textAreaInsets.right;
  lineMeasurer.setPosition(charIt.getBeginIndex());

  int noLines = 0;
  while (lineMeasurer.getPosition() < charIt.getEndIndex())
  {
    lineMeasurer.nextLayout(formatWidth);
    noLines++;
  }

  return noLines;
}