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import java.awt.Dimension; |
import java.awt.Dimension; |
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import java.awt.Insets; |
import java.awt.Insets; |
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import java.awt.LayoutManager; |
import java.awt.LayoutManager; |
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import java.awt.Point; |
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import java.awt.Rectangle; |
import java.awt.Rectangle; |
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import java.io.Serializable; |
import java.io.Serializable; |
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import javax.swing.border.Border; |
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/** |
/** |
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* ScrollPaneLayout |
* ScrollPaneLayout |
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* @author Andrew Selkirk |
* @author Andrew Selkirk |
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{ |
{ |
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public UIResource() |
public UIResource() |
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{ |
{ |
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super(); |
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} |
} |
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} |
} |
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protected int vsbPolicy; |
protected int vsbPolicy; |
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protected int hsbPolicy; |
protected int hsbPolicy; |
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public ScrollPaneLayout() { |
public ScrollPaneLayout() |
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{ |
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// Nothing to do here. |
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} |
} |
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public void syncWithScrollPane(JScrollPane scrollPane) { |
public void syncWithScrollPane(JScrollPane scrollPane) { |
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public Dimension preferredLayoutSize(Container parent) |
public Dimension preferredLayoutSize(Container parent) |
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{ |
{ |
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if (parent != null && parent instanceof JScrollPane) |
// Sun's implementation simply throws a ClassCastException if |
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{ |
// parent is no JScrollPane, so do we. |
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JScrollPane sc = (JScrollPane) parent; |
JScrollPane sc = (JScrollPane) parent; |
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Dimension viewportSize = viewport.getPreferredSize(); |
Dimension viewportSize = viewport.getPreferredSize(); |
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int width = viewportSize.width; |
int width = viewportSize.width; |
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int height = viewportSize.height; |
int height = viewportSize.height; |
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if (hsb != null && hsb.isVisible()) |
if (hsb != null && hsb.isVisible()) |
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height += hsb.getPreferredSize().height; |
height += hsb.getPreferredSize().height; |
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if (vsb != null && vsb.isVisible()) |
if (vsb != null && vsb.isVisible()) |
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width += vsb.getPreferredSize().width; |
width += vsb.getPreferredSize().width; |
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if (rowHead != null && rowHead.isVisible()) |
if (rowHead != null && rowHead.isVisible()) |
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width += rowHead.getPreferredSize().width; |
width += rowHead.getPreferredSize().width; |
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if (colHead != null && colHead.isVisible()) |
if (colHead != null && colHead.isVisible()) |
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height += colHead.getPreferredSize().height; |
height += colHead.getPreferredSize().height; |
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return new Dimension(width, height); |
Insets i = sc.getInsets(); |
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} |
return new Dimension(width + i.left + i.right, |
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// TODO: Probably throw an exception here. Check this. |
height + i.left + i.right); |
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return new Dimension(0, 0); |
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} |
} |
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public Dimension minimumLayoutSize(Container parent) |
public Dimension minimumLayoutSize(Container parent) |
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{ |
{ |
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if (parent != null && parent instanceof JScrollPane) |
// Sun's implementation simply throws a ClassCastException if |
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{ |
// parent is no JScrollPane, so do we. |
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JScrollPane sc = (JScrollPane) parent; |
JScrollPane sc = (JScrollPane) parent; |
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Dimension viewportSize = viewport.getMinimumSize(); |
Dimension viewportSize = viewport.getMinimumSize(); |
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int width = viewportSize.width; |
int width = viewportSize.width; |
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int height = viewportSize.height; |
int height = viewportSize.height; |
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if (hsb != null && hsb.isVisible()) |
if (hsb != null && hsb.isVisible()) |
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height += hsb.getMinimumSize().height; |
height += hsb.getMinimumSize().height; |
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if (vsb != null && vsb.isVisible()) |
if (vsb != null && vsb.isVisible()) |
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width += vsb.getMinimumSize().width; |
width += vsb.getMinimumSize().width; |
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if (rowHead != null && rowHead.isVisible()) |
if (rowHead != null && rowHead.isVisible()) |
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width += rowHead.getMinimumSize().width; |
width += rowHead.getMinimumSize().width; |
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if (colHead != null && colHead.isVisible()) |
if (colHead != null && colHead.isVisible()) |
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height += colHead.getMinimumSize().height; |
height += colHead.getMinimumSize().height; |
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return new Dimension(width, height); |
Insets i = sc.getInsets(); |
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} |
return new Dimension(width + i.left + i.right, |
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// TODO: Probably throw an exception here. Check this. |
height + i.top + i.bottom); |
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return new Dimension(0, 0); |
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} |
} |
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/** |
/** |
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*/ |
*/ |
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public void layoutContainer(Container parent) |
public void layoutContainer(Container parent) |
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{ |
{ |
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if (parent instanceof JScrollPane) |
// Sun's implementation simply throws a ClassCastException if |
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{ |
// parent is no JScrollPane, so do we. |
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JScrollPane sc = (JScrollPane) parent; |
JScrollPane sc = (JScrollPane) parent; |
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JViewport viewport = sc.getViewport(); |
JViewport viewport = sc.getViewport(); |
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Dimension viewSize = viewport.getViewSize(); |
Dimension viewSize = viewport.getViewSize(); |
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int x1 = 0, x2 = 0, x3 = 0, x4 = 0; |
int x1 = 0, x2 = 0, x3 = 0, x4 = 0; |
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int y1 = 0, y2 = 0, y3 = 0, y4 = 0; |
int y1 = 0, y2 = 0, y3 = 0, y4 = 0; |
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Rectangle scrollPaneBounds = SwingUtilities.calculateInnerArea(sc, null); |
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Rectangle scrollPaneBounds = SwingUtilities.calculateInnerArea(sc, null); |
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x1 = scrollPaneBounds.x; |
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x1 = scrollPaneBounds.x; |
y1 = scrollPaneBounds.y; |
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y1 = scrollPaneBounds.y; |
x4 = scrollPaneBounds.x + scrollPaneBounds.width; |
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x4 = scrollPaneBounds.x + scrollPaneBounds.width; |
y4 = scrollPaneBounds.y + scrollPaneBounds.height; |
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y4 = scrollPaneBounds.y + scrollPaneBounds.height; |
if (colHead != null) |
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y2 = y1 + colHead.getPreferredSize().height; |
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if (colHead != null) |
else |
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y2 = y1 + colHead.getPreferredSize().height; |
y2 = y1; |
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else |
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y2 = y1; |
if (rowHead != null) |
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x2 = x1 + rowHead.getPreferredSize().width; |
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if (rowHead != null) |
else |
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x2 = x1 + rowHead.getPreferredSize().width; |
x2 = x1; |
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else |
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x2 = x1; |
int vsbPolicy = sc.getVerticalScrollBarPolicy(); |
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int hsbPolicy = sc.getHorizontalScrollBarPolicy(); |
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int vsbPolicy = sc.getVerticalScrollBarPolicy(); |
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int hsbPolicy = sc.getHorizontalScrollBarPolicy(); |
boolean showVsb = |
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(vsb != null) |
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boolean showVsb = |
&& ((vsbPolicy == VERTICAL_SCROLLBAR_ALWAYS) |
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(vsb != null) |
|| (vsbPolicy == VERTICAL_SCROLLBAR_AS_NEEDED |
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&& ((vsbPolicy == VERTICAL_SCROLLBAR_ALWAYS) |
&& viewSize.height > (y4 - y2))); |
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|| (vsbPolicy == VERTICAL_SCROLLBAR_AS_NEEDED |
boolean showHsb = |
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&& viewSize.height > (y4 - y2))); |
(hsb != null) |
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boolean showHsb = |
&& ((hsbPolicy == HORIZONTAL_SCROLLBAR_ALWAYS) |
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(hsb != null) |
|| (hsbPolicy == HORIZONTAL_SCROLLBAR_AS_NEEDED |
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&& ((hsbPolicy == HORIZONTAL_SCROLLBAR_ALWAYS) |
&& viewSize.width > (x4 - x2))); |
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|| (hsbPolicy == HORIZONTAL_SCROLLBAR_AS_NEEDED |
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&& viewSize.width > (x4 - x2))); |
if (!showVsb) |
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x3 = x4; |
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if (!showVsb) |
else |
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x3 = x4; |
x3 = x4 - vsb.getPreferredSize().width; |
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else |
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x3 = x4 - vsb.getPreferredSize().width; |
if (!showHsb) |
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y3 = y4; |
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if (!showHsb) |
else |
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y3 = y4; |
y3 = y4 - hsb.getPreferredSize().height; |
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else |
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y3 = y4 - hsb.getPreferredSize().height; |
// now set the layout |
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if (viewport != null) |
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// now set the layout |
viewport.setBounds(new Rectangle(x2, y2, x3 - x2, y3 - y2)); |
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if (viewport != null) |
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viewport.setBounds(new Rectangle(x2, y2, x3 - x2, y3 - y2)); |
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if (colHead != null) |
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colHead.setBounds(new Rectangle(x2, y1, x3 - x2, y2 - y1)); |
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if (rowHead != null) |
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rowHead.setBounds(new Rectangle(x1, y2, x2 - x1, y3 - y2)); |
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if (showVsb) |
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{ |
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vsb.setVisible(true); |
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vsb.setBounds(new Rectangle(x3, y2, x4 - x3, y3 - y2)); |
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} |
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else if (vsb != null) |
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vsb.setVisible(false); |
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if (showHsb) |
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{ |
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hsb.setVisible(true); |
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hsb.setBounds(new Rectangle(x2, y3, x3 - x2, y4 - y3)); |
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} |
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else if (hsb != null) |
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hsb.setVisible(false); |
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if (upperLeft != null) |
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upperLeft.setBounds(new Rectangle(x1, y1, x2 - x1, y2 - y1)); |
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if (upperRight != null) |
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upperRight.setBounds(new Rectangle(x3, y1, x4 - x3, y2 - y1)); |
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if (lowerLeft != null) |
if (colHead != null) |
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lowerLeft.setBounds(new Rectangle(x1, y3, x2 - x1, y4 - y3)); |
colHead.setBounds(new Rectangle(x2, y1, x3 - x2, y2 - y1)); |
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if (lowerRight != null) |
if (rowHead != null) |
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lowerRight.setBounds(new Rectangle(x3, y3, x4 - x3, y4 - y3)); |
rowHead.setBounds(new Rectangle(x1, y2, x2 - x1, y3 - y2)); |
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if (showVsb) |
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{ |
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vsb.setVisible(true); |
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vsb.setBounds(new Rectangle(x3, y2, x4 - x3, y3 - y2)); |
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} |
} |
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else if (vsb != null) |
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vsb.setVisible(false); |
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if (showHsb) |
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{ |
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hsb.setVisible(true); |
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hsb.setBounds(new Rectangle(x2, y3, x3 - x2, y4 - y3)); |
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} |
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else if (hsb != null) |
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hsb.setVisible(false); |
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if (upperLeft != null) |
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upperLeft.setBounds(new Rectangle(x1, y1, x2 - x1, y2 - y1)); |
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if (upperRight != null) |
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upperRight.setBounds(new Rectangle(x3, y1, x4 - x3, y2 - y1)); |
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if (lowerLeft != null) |
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lowerLeft.setBounds(new Rectangle(x1, y3, x2 - x1, y4 - y3)); |
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if (lowerRight != null) |
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lowerRight.setBounds(new Rectangle(x3, y3, x4 - x3, y4 - y3)); |
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} |
} |
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/** |
/** |