org.eclipse.swt.graphics.GC.getFontMetrics()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.eclipse.swt.graphics.GC.getFontMetrics()方法的一些代码示例，展示了GC.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。GC.getFontMetrics()方法的具体详情如下：
包路径：org.eclipse.swt.graphics.GC
类名称：GC
方法名：getFontMetrics

GC.getFontMetrics介绍

[英]Returns a FontMetrics which contains information about the font currently being used by the receiver to draw and measure text.
[中]

代码示例

代码示例来源：origin: pentaho/pentaho-kettle

FontMetrics fm = gc.getFontMetrics();
int charWidth = fm.getAverageCharWidth();
int fieldWidth = text.computeSize( charWidth * 20, SWT.DEFAULT ).x;

代码示例来源：origin: stackoverflow.com

GC gc = new GC(text);
try
{
  gc.setFont(text.getFont());
  FontMetrics fm = gc.getFontMetrics();

  /* Set the height to 5 rows of characters */
  data.heightHint = 5 * fm.getHeight();
}
finally
{
  gc.dispose();
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.ui.workbench

private static void createSpace(Composite parent) {
  Label vfiller = new Label(parent, SWT.LEFT);
  GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
  gridData.horizontalSpan= 2;
  GC gc = new GC(parent);
  gridData.heightHint = Dialog.convertHeightInCharsToPixels(gc.getFontMetrics(), 1) / 2;
  gc.dispose();
  vfiller.setLayoutData(gridData);
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

int getBandHeight () {
  if (font == null) return ExpandItem.CHEVRON_SIZE;
  GC gc = new GC (this);
  FontMetrics metrics = gc.getFontMetrics ();
  gc.dispose ();
  return Math.max (ExpandItem.CHEVRON_SIZE, metrics.getHeight ());
}

代码示例来源：origin: org.eclipse.equinox.p2/ui

private void setButtonLayoutData(Button button) {
  GridData data = new GridData(SWT.FILL, SWT.CENTER, false, false);
  GC gc = new GC(button);
  gc.setFont(JFaceResources.getDialogFont());
  FontMetrics fm = gc.getFontMetrics();
  gc.dispose();
  int widthHint = Dialog.convertHorizontalDLUsToPixels(fm, IDialogConstants.BUTTON_WIDTH);
  Point minSize = button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
  data.widthHint = Math.max(widthHint, minSize.x);
  button.setLayoutData(data);
}

代码示例来源：origin: org.eclipse/org.eclipse.jdt.debug.ui

private static GridData getButtonGridData(Button button) {
  GridData gd = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING);
  GC gc = new GC(button);
  gc.setFont(button.getFont());
  FontMetrics fontMetrics = gc.getFontMetrics();
  gc.dispose();
  int widthHint = Dialog.convertHorizontalDLUsToPixels(fontMetrics, IDialogConstants.BUTTON_WIDTH);
  gd.widthHint = Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
  return gd;
}

代码示例来源：origin: org.eclipse.jdt/org.eclipse.jdt.ui

@Override
  public Point computeSizeConstraints(int widthInChars, int heightInChars) {
    GC gc= new GC(fText);
    gc.setFont(fTextFont);
    int width= gc.getFontMetrics().getAverageCharWidth();
    int height= fText.getLineHeight(); //https://bugs.eclipse.org/bugs/show_bug.cgi?id=377109
    gc.dispose();

    return new Point(widthInChars * width, heightInChars * height);
  }
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.jface.text

@Override
  public Point computeSizeConstraints(int widthInChars, int heightInChars) {
    GC gc= new GC(fText);
    gc.setFont(fTextFont);
    double width= gc.getFontMetrics().getAverageCharacterWidth();
    int height= fText.getLineHeight();
    gc.dispose();

    return new Point((int) (widthInChars * width), heightInChars * height);
  }
}

代码示例来源：origin: org.eclipse/org.eclipse.ui.editors

public PixelConverter(Control control) {
  GC gc = new GC(control);
  gc.setFont(control.getFont());
  fFontMetrics= gc.getFontMetrics();
  gc.dispose();
}

代码示例来源：origin: org.eclipse/org.eclipse.jdt.debug.ui

public PixelConverter(Control control) {
  GC gc = new GC(control);
  gc.setFont(control.getFont());
  fFontMetrics= gc.getFontMetrics();
  gc.dispose();
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.team.ui

public PixelConverter(Control control) {
  GC gc = new GC(control);
  try {
    gc.setFont(control.getFont());
    fFontMetrics= gc.getFontMetrics();
  } finally {
    gc.dispose();
  }
}

代码示例来源：origin: org.eclipse.jdt/org.eclipse.jdt.ui

public PixelConverter(Font font) {
  GC gc = new GC(font.getDevice());
  gc.setFont(font);
  fFontMetrics= gc.getFontMetrics();
  gc.dispose();
}

代码示例来源：origin: org.eclipse/org.eclipse.search

public PixelConverter(Control control) {
  GC gc = new GC(control);
  gc.setFont(control.getFont());
  fFontMetrics= gc.getFontMetrics();
  gc.dispose();
}

代码示例来源：origin: org.eclipse/org.eclipse.team.ui

public PixelConverter(Control control) {
  GC gc = new GC(control);
  try {
    gc.setFont(control.getFont());
    fFontMetrics= gc.getFontMetrics();
  } finally {
    gc.dispose();
  }
}

代码示例来源：origin: BiglySoftware/BiglyBT

@Override
  public void handleEvent(Event event) {
    GC gc = new GC(consoleText);
    int charWidth = gc.getFontMetrics().getAverageCharWidth();
    gc.dispose();
    int areaWidth = consoleText.getBounds().width;
    consoleText.setTabs(areaWidth / 6 / charWidth);
  }
});

代码示例来源：origin: org.eclipse.pde/org.eclipse.pde.api.tools.ui

public int convertWidthInCharsToPixels(Font font, int chars) {
  GC gc = new GC(font.getDevice());
  gc.setFont(font);
  FontMetrics fontMetrics = gc.getFontMetrics();
  gc.dispose();
  return Dialog.convertWidthInCharsToPixels(fontMetrics, chars);
}

代码示例来源：origin: BiglySoftware/BiglyBT

@Override
  public void handleEvent(Event event) {
    Color old = event.gc.getForeground();
    event.gc.setForeground(Colors.black);
    int	char_width = event.gc.getFontMetrics().getAverageCharWidth();
    String pb_text = pbt.convert(result.getSelection());
    event.gc.drawText(pb_text, (result.getSize().x - pb_text.length() * char_width )/2, -1, true);
    event.gc.setForeground(old);
  }
});

代码示例来源：origin: org.eclipse/org.eclipse.jdt.ui

private static int getButtonWidthHint(Button button) {
    button.setFont(JFaceResources.getDialogFont());
    
    GC gc = new GC(button);
    gc.setFont(button.getFont());
    FontMetrics fontMetrics= gc.getFontMetrics();
    gc.dispose();
    
    int widthHint= Dialog.convertHorizontalDLUsToPixels(fontMetrics, IDialogConstants.BUTTON_WIDTH);
    return Math.max(widthHint, button.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
  }
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.ui.forms

public int getFontHeight() {
  if (fontHeight == -1) {
    Control c = getMessageControl();
    if (c == null)
      return 0;
    GC gc = new GC(c.getDisplay());
    gc.setFont(c.getFont());
    fontHeight = gc.getFontMetrics().getHeight();
    gc.dispose();
  }
  return fontHeight;
}

代码示例来源：origin: org.eclipse/org.eclipse.wst.xml.ui

protected void addEmptyTreeMessage(GC gc) {
  // here we print a message when the document is empty just to give the
  // user a visual cue
  // so that they know how to proceed to edit the blank view
  gc.setForeground(fTree.getDisplay().getSystemColor(SWT.COLOR_BLACK));
  gc.setBackground(fTree.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
  gc.drawString(XMLEditorMessages.XMLTreeExtension_3, 10, 10);
  gc.drawString(XMLEditorMessages.XMLTreeExtension_4, 10, 10 + gc.getFontMetrics().getHeight());
}

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