private void updateLabelSizes() { Dictionary labelTable = getLabelTable(); if (labelTable != null) { Enumeration labels = labelTable.elements(); while (labels.hasMoreElements()) { JComponent component = (JComponent) labels.nextElement(); component.setSize(component.getPreferredSize()); } } }
/** * Updates the UIs for the labels in the label table by calling {@code updateUI} on each label. * The UIs are updated from the current look and feel. The labels are also set to their preferred * size. * * @see #setLabelTable * @see JComponent#updateUI */ protected void updateLabelUIs() { Dictionary labelTable = getLabelTable(); if (labelTable == null) { return; } Enumeration labels = labelTable.keys(); while (labels.hasMoreElements()) { JComponent component = (JComponent) labelTable.get(labels.nextElement()); component.updateUI(); component.setSize(component.getPreferredSize()); } }
/** * Paints the border for the specified component with the specified position and size. * * @param c the component for which this border is being painted * @param g the paint graphics * @param x the x position of the painted border * @param y the y position of the painted border * @param width the width of the painted border * @param height the height of the painted border */ public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) { Border border = getBorder(); if (label == null) { if (border != null) { border.paintBorder(c, g, x, y, width, height); } return; } Rectangle grooveRect = new Rectangle( x + EDGE_SPACING, y + EDGE_SPACING, width - (EDGE_SPACING * 2), height - (EDGE_SPACING * 2)); Dimension labelDim = label.getPreferredSize(); int baseline = label.getBaseline(labelDim.width, labelDim.height); int ascent = Math.max(0, baseline); int descent = labelDim.height - ascent; int diff; Insets insets; if (border != null) { insets = border.getBorderInsets(c); } else { insets = new Insets(0, 0, 0, 0); } diff = Math.max(0, ascent / 2 + TEXT_SPACING - EDGE_SPACING); grooveRect.y += diff; grooveRect.height -= diff; compLoc.y = grooveRect.y + insets.top / 2 - (ascent + descent) / 2 - 1; int justification; if (c.getComponentOrientation().isLeftToRight()) { justification = LEFT; } else { justification = RIGHT; } switch (justification) { case LEFT: compLoc.x = grooveRect.x + TEXT_INSET_H + insets.left; break; case RIGHT: compLoc.x = (grooveRect.x + grooveRect.width - (labelDim.width + TEXT_INSET_H + insets.right)); break; } // If title is positioned in middle of border AND its fontsize // is greater than the border's thickness, we'll need to paint // the border in sections to leave space for the component's background // to show through the title. // if (border != null) { if (grooveRect.y > compLoc.y - ascent) { Rectangle clipRect = new Rectangle(); // save original clip Rectangle saveClip = g.getClipBounds(); // paint strip left of text clipRect.setBounds(saveClip); if (computeIntersection(clipRect, x, y, compLoc.x - 1 - x, height)) { g.setClip(clipRect); border.paintBorder( c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height); } // paint strip right of text clipRect.setBounds(saveClip); if (computeIntersection( clipRect, compLoc.x + labelDim.width + 1, y, x + width - (compLoc.x + labelDim.width + 1), height)) { g.setClip(clipRect); border.paintBorder( c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height); } // paint strip below text clipRect.setBounds(saveClip); if (computeIntersection( clipRect, compLoc.x - 1, compLoc.y + ascent + descent, labelDim.width + 2, y + height - compLoc.y - ascent - descent)) { g.setClip(clipRect); border.paintBorder( c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height); } // restore clip g.setClip(saveClip); } else { border.paintBorder(c, g, grooveRect.x, grooveRect.y, grooveRect.width, grooveRect.height); } label.setLocation(compLoc); label.setSize(labelDim); } }
/** sizes and places a JComponent so that this does not have to be done repeatedly * */ public static JComponent formatJComponent( JComponent component, int width, int height, int x, int y) { component.setSize(width, height); component.setLocation(x, y); return component; }