javax.swing.text.JTextComponent.getFontMetrics()方法的使用及代码示例

x33g5p2x  于2022-01-21 转载在 其他  
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本文整理了Java中javax.swing.text.JTextComponent.getFontMetrics()方法的一些代码示例，展示了JTextComponent.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。JTextComponent.getFontMetrics()方法的具体详情如下：
包路径：javax.swing.text.JTextComponent
类名称：JTextComponent
方法名：getFontMetrics

JTextComponent.getFontMetrics介绍

暂无

代码示例

代码示例来源：origin: groovy/groovy-core

protected synchronized void damage(Rectangle r) {
    if (r != null) {
      JTextComponent component = getComponent();
      x = r.x;
      y = r.y;
      Font font = component.getFont();
      width = component.getFontMetrics(font).charWidth('w');
      height = r.height;
      repaint();
    }
  }
}

代码示例来源：origin: SonarSource/sonarqube

fm = component.getFontMetrics(font);
fonts.put(key, fm);

代码示例来源：origin: SonarSource/sonarqube

FontMetrics fontMetrics = component.getFontMetrics(component.getFont());
Insets insets = getInsets();
int availableWidth = getSize().width - insets.left - insets.right;

代码示例来源：origin: omegat-org/omegat

@Override
  protected void paint(Graphics g, Rectangle rect, JTextComponent c) {
    g.setColor(color);
    FontMetrics fm = c.getFontMetrics(c.getFont());
    int baseline = rect.y + rect.height - fm.getDescent() + 1;
    g.drawLine(rect.x, baseline, rect.x + rect.width, baseline);
    g.drawLine(rect.x, baseline + 1, rect.x + rect.width, baseline + 1);
  }
}

代码示例来源：origin: omegat-org/omegat

@Override
  protected void paint(Graphics g, Rectangle rect, JTextComponent c) {
    g.setColor(color);
    FontMetrics fm = c.getFontMetrics(c.getFont());
    int baseline = rect.y + rect.height - fm.getDescent() + 1;
    g.drawLine(rect.x, baseline, rect.x + rect.width, baseline);
  }
}

代码示例来源：origin: omegat-org/omegat

protected void paint(Graphics g, Rectangle rect, JTextComponent c) {
    Font f = c.getFont();
    FontMetrics fm = c.getFontMetrics(f);
    int y = rect.y - 1 + fm.getAscent();

    g.setFont(f);
    g.setColor(color);
    g.drawString(symbol, rect.x, y);
  }
}

代码示例来源：origin: org.gosu-lang.gosu/gosu-editor

@Override
public Dimension getPreferredSize()
{
 Dimension dim = new Dimension();
 dim.height = _editor.getHeight();
 FontMetrics fm = _editor.getFontMetrics( _editor.getFont() );
 dim.width = fm.stringWidth( String.valueOf( dim.height / fm.getHeight() + 1 ) );
 dim.width = Math.max( dim.width, GosuEditor.MIN_LINENUMBER_WIDTH );
 dim.width += getLineInfoRequiredWidth();
 return dim;
}

代码示例来源：origin: stackoverflow.com

public static int maxLinesVisibleInWindow(JTextComponent component)
{
  Container container = getAncestorOfClass(JViewport.class, component);
 if (container == null) return 0;
 JViewport   viewport        = (JViewport)container;
 int         extentHeight    = viewport.getExtentSize().height;
 FontMetrics fm              = component.getFontMetrics(component.getFont());
 int         characterHeight = fm.getHeight();
 return (int)extentHeight/characterHeight - 1;
}

代码示例来源：origin: de.sciss/jsyntaxpane

/**
 * Get the closest position within the document of the component that
 * has given line and column.
 * @param editor
 * @param line the first being 1
 * @param column the first being 1
 * @return the closest positon for the text component at given line and
 * column
 */
public static int getDocumentPosition(JTextComponent editor, int line,
  int column) {
  int lineHeight = editor.getFontMetrics(editor.getFont()).getHeight();
  int charWidth = editor.getFontMetrics(editor.getFont()).charWidth('m');
  int y = line * lineHeight;
  int x = column * charWidth;
  Point pt = new Point(x, y);
  int pos = editor.viewToModel(pt);
  return pos;
}

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-visualweb-designer

private static Dimension computeSizeForTextComponentColumns(JTextComponent textComponent, int columns) {
    Dimension size = textComponent.getPreferredSize();
    Font font = textComponent.getFont();
    if (font == null) {
      return size;
    }
    FontMetrics fontMetrics = textComponent.getFontMetrics(font);
    if (fontMetrics == null) {
      return size;
    }
//        Insets insets = textComponent.getInsets();
//        int insetsWidth = insets == null ? 0 : insets.left + insets.right;
    size.width = columns * (fontMetrics.charWidth('a'))/* + insetsWidth*/; // NOI18N
    return size;
  }

代码示例来源：origin: org.netbeans.modules/org-netbeans-modules-cnd-navigation

void mouseClicked(JTextComponent c, Point p) {
  Point position = new Point(p);
  position.y += c.getFontMetrics(c.getFont()).getHeight();
  SwingUtilities.convertPointToScreen(position, c);        
  performGoToAction(position);
}

代码示例来源：origin: org.codehaus.groovy/groovy-console

protected synchronized void damage(Rectangle r) {
    if (r != null) {
      JTextComponent component = getComponent();
      x = r.x;
      y = r.y;
      Font font = component.getFont();
      width = component.getFontMetrics(font).charWidth('w');
      height = r.height;
      repaint();
    }
  }
}

代码示例来源：origin: com.thinkaurelius.groovy-shaded-asm/groovy-shaded-asm

protected synchronized void damage(Rectangle r) {
    if (r != null) {
      JTextComponent component = getComponent();
      x = r.x;
      y = r.y;
      Font font = component.getFont();
      width = component.getFontMetrics(font).charWidth('w');
      height = r.height;
      repaint();
    }
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy-all-minimal

protected synchronized void damage(Rectangle r) {
    if (r != null) {
      JTextComponent component = getComponent();
      x = r.x;
      y = r.y;
      Font font = component.getFont();
      width = component.getFontMetrics(font).charWidth('w');
      height = r.height;
      repaint();
    }
  }
}

代码示例来源：origin: org.codehaus.groovy/groovy-jdk14

protected synchronized void damage(Rectangle r) {
    if (r != null) {
      JTextComponent component = getComponent();
      x = r.x;
      y = r.y;
      Font font = component.getFont();
      width = component.getFontMetrics(font).charWidth('w');
      height = r.height;
      repaint();
    }
  }
}

代码示例来源：origin: org.kohsuke.droovy/groovy

protected synchronized void damage(Rectangle r) {
    if (r != null) {
      JTextComponent component = getComponent();
      x = r.x;
      y = r.y;
      Font font = component.getFont();
      width = component.getFontMetrics(font).charWidth('w');
      height = r.height;
      repaint();
    }
  }
}

代码示例来源：origin: org.netbeans.api/org-netbeans-spi-quicksearch

protected int computePrefWidth () {
  FontMetrics fm = command.getFontMetrics(command.getFont());
  ProviderModel pModel = ProviderModel.getInstance();
  int maxWidth = 0;
  for (Category cat : pModel.getCategories()) {
    // skip recent category
    if (CommandEvaluator.RECENT.equals(cat.getName())) {
      continue;
    }
    maxWidth = Math.max(maxWidth, fm.stringWidth(getHintText(cat)));
  }
  // don't allow width grow too much
  return Math.min(350, maxWidth);
}

代码示例来源：origin: org.gosu-lang.gosu/gosu-lab

@Override
public Dimension getPreferredSize()
{
 Dimension dim = new Dimension();
 dim.height = _editor.getHeight();
 FontMetrics fm = _editor.getFontMetrics( _editor.getFont() );
 int iLineHeight = fm.getHeight();
 iLineHeight += getLineSpacingAttr( iLineHeight );
 int iLines = getHeight() / iLineHeight;
 dim.width = fm.stringWidth( String.valueOf( iLines ) );
 dim.width = Math.max( dim.width, GosuEditor.MIN_LINENUMBER_WIDTH );
 dim.width += getLineInfoRequiredWidth();
 Insets borderInsets = getBorder().getBorderInsets( this );
 dim.width += borderInsets.left + borderInsets.right;
 return dim;
}

代码示例来源：origin: net.java.abeille/abeille

void checkLineLimit() {
  BaseDocument doc = getDocument();
  if (doc != null) {
    Integer lineLimit = (Integer) doc.getProperty(BaseDocument.LINE_LIMIT_PROP);
    if (lineLimit != null) {
      if (component != null) {
        // Not using FM cache - could be called too early
        FontMetrics fm = component.getFontMetrics(getDefaultColoring().getFont());
        if (fm != null) {
          int charWidth = fm.stringWidth("A");
          updateVirtualWidth(charWidth * lineLimit.intValue() + lineNumberWidth);
        }
      }
    }
  }
}

代码示例来源：origin: net.sf.squirrel-sql.thirdparty-non-maven/org-netbeans-modules-editor-lib

void checkLineLimit() {
  BaseDocument doc = getDocument();
  if (doc != null) {
    Integer lineLimit = (Integer)doc.getProperty(BaseDocument.LINE_LIMIT_PROP);
    if (lineLimit != null) {
      if (component != null) {
        // Not using FM cache - could be called too early
        FontMetrics fm = component.getFontMetrics(getDefaultColoring().getFont());
        if (fm != null) {
          int charWidth = fm.stringWidth("A"); // NOI18N
          updateVirtualWidth(charWidth * lineLimit.intValue() + lineNumberWidth);
        }
      }
    }
  }
}

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