當前位置: 首頁>>代碼示例>>Java>>正文


Java JPasswordField.getFontMetrics方法代碼示例

本文整理匯總了Java中javax.swing.JPasswordField.getFontMetrics方法的典型用法代碼示例。如果您正苦於以下問題:Java JPasswordField.getFontMetrics方法的具體用法?Java JPasswordField.getFontMetrics怎麽用?Java JPasswordField.getFontMetrics使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在javax.swing.JPasswordField的用法示例。


在下文中一共展示了JPasswordField.getFontMetrics方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: modelToView

import javax.swing.JPasswordField; //導入方法依賴的package包/類
/**
 * Provides a mapping from the document model coordinate space
 * to the coordinate space of the view mapped to it.
 *
 * @param pos the position to convert >= 0
 * @param a the allocated region to render into
 * @return the bounding box of the given position
 * @exception BadLocationException  if the given position does not
 *   represent a valid location in the associated document
 * @see View#modelToView
 */
public Shape modelToView(int pos, Shape a, Position.Bias b) throws BadLocationException {
    Container c = getContainer();
    if (c instanceof JPasswordField) {
        JPasswordField f = (JPasswordField) c;
        if (! f.echoCharIsSet()) {
            return super.modelToView(pos, a, b);
        }
        char echoChar = f.getEchoChar();
        FontMetrics m = f.getFontMetrics(f.getFont());

        Rectangle alloc = adjustAllocation(a).getBounds();
        int dx = (pos - getStartOffset()) * m.charWidth(echoChar);
        alloc.x += dx;
        alloc.width = 1;
        return alloc;
    }
    return null;
}
 
開發者ID:SunburstApps,項目名稱:OpenJSharp,代碼行數:30,代碼來源:PasswordView.java

示例2: getPreferredSpan

import javax.swing.JPasswordField; //導入方法依賴的package包/類
/**
 * Determines the preferred span for this view along an
 * axis.
 *
 * @param axis may be either View.X_AXIS or View.Y_AXIS
 * @return   the span the view would like to be rendered into >= 0.
 *           Typically the view is told to render into the span
 *           that is returned, although there is no guarantee.
 *           The parent may choose to resize or break the view.
 */
public float getPreferredSpan(int axis) {
    switch (axis) {
    case View.X_AXIS:
        Container c = getContainer();
        if (c instanceof JPasswordField) {
            JPasswordField f = (JPasswordField) c;
            if (f.echoCharIsSet()) {
                char echoChar = f.getEchoChar();
                FontMetrics m = f.getFontMetrics(f.getFont());
                Document doc = getDocument();
                return m.charWidth(echoChar) * getDocument().getLength();
            }
        }
    }
    return super.getPreferredSpan(axis);
}
 
開發者ID:SunburstApps,項目名稱:OpenJSharp,代碼行數:27,代碼來源:PasswordView.java


注:本文中的javax.swing.JPasswordField.getFontMetrics方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。