/** * Iterate over the lines represented by the child elements of the element this view represents, * looking for the line that is the longest. The <em>longLine</em> variable is updated to * represent the longest line contained. The <em>font</em> variable is updated to indicate the * font used to calculate the longest line. */ void calculateLongestLine() { Component c = getContainer(); font = c.getFont(); metrics = c.getFontMetrics(font); tabSize = getTabSize() * metrics.charWidth(' '); Element lines = getElement(); int n = lines.getElementCount(); for (int i = 0; i < n; i++) { Element line = lines.getElement(i); float w = getLineWidth(i); if (w > longLineWidth) { longLineWidth = w; longLine = line; } } }
final void updateMetrics() { Component host = getContainer(); Font f = host.getFont(); metrics = host.getFontMetrics(f); // Metrics for the default font. tabSize = getTabSize() * metrics.charWidth('m'); }
/** * Fetches the font metrics associated with the component hosting this view. * * @return the metrics */ protected FontMetrics getFontMetrics() { Component c = getContainer(); return c.getFontMetrics(c.getFont()); }