示例#1
0
    /**
     * Returns the amount of space the layout would like to have.
     *
     * @param the Container for which this layout manager is being used
     * @return a Dimension object containing the layout's preferred size
     */
    public Dimension preferredLayoutSize(Container parent) {
      Dimension cpd, tpd;
      int cpWidth = 0;
      int cpHeight = 0;
      int mbWidth = 0;
      int mbHeight = 0;
      int tpWidth = 0;
      Insets i = parent.getInsets();
      JRootPane root = (JRootPane) parent;

      if (root.getContentPane() != null) {
        cpd = root.getContentPane().getPreferredSize();
      } else {
        cpd = root.getSize();
      }
      if (cpd != null) {
        cpWidth = cpd.width;
        cpHeight = cpd.height;
      }

      if (root.getWindowDecorationStyle() != JRootPane.NONE
          && (root.getUI() instanceof RootPaneUI)) {
        JComponent titlePane = ((RootPaneUI) root.getUI()).getTitlePane();
        if (titlePane != null) {
          tpd = titlePane.getPreferredSize();
          if (tpd != null) {
            tpWidth = tpd.width;
          }
        }
      }

      return new Dimension(
          Math.max(Math.max(cpWidth, mbWidth), tpWidth) + i.left + i.right,
          cpHeight + mbHeight + tpWidth + i.top + i.bottom);
    }
示例#2
0
    /**
     * Instructs the layout manager to perform the layout for the specified container.
     *
     * @param the Container for which this layout manager is being used
     */
    public void layoutContainer(Container parent) {
      JRootPane root = (JRootPane) parent;
      Rectangle b = root.getBounds();
      Insets i = root.getInsets();
      int nextY = 0;
      int w = b.width - i.right - i.left;
      int h = b.height - i.top - i.bottom;

      if (root.getLayeredPane() != null) {
        root.getLayeredPane().setBounds(i.left, i.top, w, h);
      }
      if (root.getGlassPane() != null) {
        root.getGlassPane().setBounds(i.left, i.top, w, h);
      }
      // Note: This is laying out the children in the layeredPane,
      // technically, these are not our children.
      if (root.getWindowDecorationStyle() != JRootPane.NONE
          && (root.getUI() instanceof RootPaneUI)) {
        JComponent titlePane = ((RootPaneUI) root.getUI()).getTitlePane();
        if (titlePane != null) {
          Dimension tpd = titlePane.getPreferredSize();
          if (tpd != null) {
            int tpHeight = tpd.height;
            titlePane.setBounds(0, 0, w, tpHeight);
            nextY += tpHeight;
          }
        }
      }

      if (root.getContentPane() != null) {

        root.getContentPane().setBounds(0, nextY, w, h < nextY ? 0 : h - nextY);
      }
    }
示例#3
0
 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());
     }
   }
 }
示例#4
0
  /**
   * 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);
      }
    }