下面列出了java.awt.Container#getLayout ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Package private method which returns either BorderLayout.NORTH,
* BorderLayout.SOUTH, BorderLayout.EAST, or BorderLayout.WEST depending
* on the location of the toolbar in its parent. The toolbar might be
* in PAGE_START, PAGE_END, CENTER, or some other position, but will be
* resolved to either NORTH,SOUTH,EAST, or WEST based on where the toolbar
* actually IS, with CENTER being NORTH.
*
* This code is used to determine where the border line should be drawn
* by the custom toolbar states, and also used by NimbusIcon to determine
* whether the handle icon needs to be shifted to look correct.
*
* Toollbars are unfortunately odd in the way these things are handled,
* and so this code exists to unify the logic related to toolbars so it can
* be shared among the static files such as NimbusIcon and generated files
* such as the ToolBar state classes.
*/
static Object resolveToolbarConstraint(JToolBar toolbar) {
//NOTE: we don't worry about component orientation or PAGE_END etc
//because the BasicToolBarUI always uses an absolute position of
//NORTH/SOUTH/EAST/WEST.
if (toolbar != null) {
Container parent = toolbar.getParent();
if (parent != null) {
LayoutManager m = parent.getLayout();
if (m instanceof BorderLayout) {
BorderLayout b = (BorderLayout)m;
Object con = b.getConstraints(toolbar);
if (con == SOUTH || con == EAST || con == WEST) {
return con;
}
return NORTH;
}
}
}
return NORTH;
}
/**
* Package private method which returns either BorderLayout.NORTH,
* BorderLayout.SOUTH, BorderLayout.EAST, or BorderLayout.WEST depending
* on the location of the toolbar in its parent. The toolbar might be
* in PAGE_START, PAGE_END, CENTER, or some other position, but will be
* resolved to either NORTH,SOUTH,EAST, or WEST based on where the toolbar
* actually IS, with CENTER being NORTH.
*
* This code is used to determine where the border line should be drawn
* by the custom toolbar states, and also used by NimbusIcon to determine
* whether the handle icon needs to be shifted to look correct.
*
* Toollbars are unfortunately odd in the way these things are handled,
* and so this code exists to unify the logic related to toolbars so it can
* be shared among the static files such as NimbusIcon and generated files
* such as the ToolBar state classes.
*/
static Object resolveToolbarConstraint(JToolBar toolbar) {
//NOTE: we don't worry about component orientation or PAGE_END etc
//because the BasicToolBarUI always uses an absolute position of
//NORTH/SOUTH/EAST/WEST.
if (toolbar != null) {
Container parent = toolbar.getParent();
if (parent != null) {
LayoutManager m = parent.getLayout();
if (m instanceof BorderLayout) {
BorderLayout b = (BorderLayout)m;
Object con = b.getConstraints(toolbar);
if (con == SOUTH || con == EAST || con == WEST) {
return con;
}
return NORTH;
}
}
}
return NORTH;
}
/**
* Package private method which returns either BorderLayout.NORTH,
* BorderLayout.SOUTH, BorderLayout.EAST, or BorderLayout.WEST depending
* on the location of the toolbar in its parent. The toolbar might be
* in PAGE_START, PAGE_END, CENTER, or some other position, but will be
* resolved to either NORTH,SOUTH,EAST, or WEST based on where the toolbar
* actually IS, with CENTER being NORTH.
*
* This code is used to determine where the border line should be drawn
* by the custom toolbar states, and also used by NimbusIcon to determine
* whether the handle icon needs to be shifted to look correct.
*
* Toollbars are unfortunately odd in the way these things are handled,
* and so this code exists to unify the logic related to toolbars so it can
* be shared among the static files such as NimbusIcon and generated files
* such as the ToolBar state classes.
*/
static Object resolveToolbarConstraint(JToolBar toolbar) {
//NOTE: we don't worry about component orientation or PAGE_END etc
//because the BasicToolBarUI always uses an absolute position of
//NORTH/SOUTH/EAST/WEST.
if (toolbar != null) {
Container parent = toolbar.getParent();
if (parent != null) {
LayoutManager m = parent.getLayout();
if (m instanceof BorderLayout) {
BorderLayout b = (BorderLayout)m;
Object con = b.getConstraints(toolbar);
if (con == SOUTH || con == EAST || con == WEST) {
return con;
}
return NORTH;
}
}
}
return NORTH;
}
@Override
public void componentResized(ComponentEvent event) {
final int SIZE = getWidth() <= getHeight() ? getWidth() : getHeight();
Container parent = getParent();
if ((parent != null) && (parent.getLayout() == null)) {
if (SIZE < getMinimumSize().width || SIZE < getMinimumSize().height) {
setSize(getMinimumSize());
} else if(square) {
setSize(SIZE, SIZE);
} else {
setSize(getWidth(), getHeight());
}
} else {
if (SIZE < getMinimumSize().width || SIZE < getMinimumSize().height) {
setPreferredSize(getMinimumSize());
} else if(square) {
setPreferredSize(new Dimension(SIZE, SIZE));
} else {
setPreferredSize(new Dimension(getWidth(), getHeight()));
}
}
calcInnerBounds();
init(getInnerBounds().width, getInnerBounds().height);
}
/**
* Package private method which returns either BorderLayout.NORTH,
* BorderLayout.SOUTH, BorderLayout.EAST, or BorderLayout.WEST depending
* on the location of the toolbar in its parent. The toolbar might be
* in PAGE_START, PAGE_END, CENTER, or some other position, but will be
* resolved to either NORTH,SOUTH,EAST, or WEST based on where the toolbar
* actually IS, with CENTER being NORTH.
*
* This code is used to determine where the border line should be drawn
* by the custom toolbar states, and also used by NimbusIcon to determine
* whether the handle icon needs to be shifted to look correct.
*
* Toollbars are unfortunately odd in the way these things are handled,
* and so this code exists to unify the logic related to toolbars so it can
* be shared among the static files such as NimbusIcon and generated files
* such as the ToolBar state classes.
*/
static Object resolveToolbarConstraint(JToolBar toolbar) {
//NOTE: we don't worry about component orientation or PAGE_END etc
//because the BasicToolBarUI always uses an absolute position of
//NORTH/SOUTH/EAST/WEST.
if (toolbar != null) {
Container parent = toolbar.getParent();
if (parent != null) {
LayoutManager m = parent.getLayout();
if (m instanceof BorderLayout) {
BorderLayout b = (BorderLayout)m;
Object con = b.getConstraints(toolbar);
if (con == SOUTH || con == EAST || con == WEST) {
return con;
}
return NORTH;
}
}
}
return NORTH;
}
/**
* Package private method which returns either BorderLayout.NORTH,
* BorderLayout.SOUTH, BorderLayout.EAST, or BorderLayout.WEST depending
* on the location of the toolbar in its parent. The toolbar might be
* in PAGE_START, PAGE_END, CENTER, or some other position, but will be
* resolved to either NORTH,SOUTH,EAST, or WEST based on where the toolbar
* actually IS, with CENTER being NORTH.
*
* This code is used to determine where the border line should be drawn
* by the custom toolbar states, and also used by NimbusIcon to determine
* whether the handle icon needs to be shifted to look correct.
*
* Toollbars are unfortunately odd in the way these things are handled,
* and so this code exists to unify the logic related to toolbars so it can
* be shared among the static files such as NimbusIcon and generated files
* such as the ToolBar state classes.
*/
static Object resolveToolbarConstraint(JToolBar toolbar) {
//NOTE: we don't worry about component orientation or PAGE_END etc
//because the BasicToolBarUI always uses an absolute position of
//NORTH/SOUTH/EAST/WEST.
if (toolbar != null) {
Container parent = toolbar.getParent();
if (parent != null) {
LayoutManager m = parent.getLayout();
if (m instanceof BorderLayout) {
BorderLayout b = (BorderLayout)m;
Object con = b.getConstraints(toolbar);
if (con == SOUTH || con == EAST || con == WEST) {
return con;
}
return NORTH;
}
}
}
return NORTH;
}
public GridBagInfoProvider(Container container, LayoutSupportManager layoutManager) {
this.container = container;
this.layoutManager = layoutManager;
LayoutManager containerLayout = container.getLayout();
if (!(containerLayout instanceof GridBagLayout)) {
throw new IllegalArgumentException();
}
try {
tempXField = GridBagConstraints.class.getDeclaredField("tempX"); // NOI18N
tempXField.setAccessible(true);
tempYField = GridBagConstraints.class.getDeclaredField("tempY"); // NOI18N
tempYField.setAccessible(true);
tempHeightField = GridBagConstraints.class.getDeclaredField("tempHeight"); // NOI18N
tempHeightField.setAccessible(true);
tempWidthField = GridBagConstraints.class.getDeclaredField("tempWidth"); // NOI18N
tempWidthField.setAccessible(true);
} catch (NoSuchFieldException nsfex) {
FormUtils.LOGGER.log(Level.INFO, nsfex.getMessage(), nsfex);
}
containerEmphColor = deriveEmphColor(container);
}
/**
* Add a component to the PolicyTool window
*/
void addNewComponent(Container container, JComponent component,
int index, int gridx, int gridy, int gridwidth, int gridheight,
double weightx, double weighty, int fill, Insets is) {
if (container instanceof JFrame) {
container = ((JFrame)container).getContentPane();
} else if (container instanceof JDialog) {
container = ((JDialog)container).getContentPane();
}
// add the component at the specified gridbag index
container.add(component, index);
// set the constraints
GridBagLayout gbl = (GridBagLayout)container.getLayout();
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = gridx;
gbc.gridy = gridy;
gbc.gridwidth = gridwidth;
gbc.gridheight = gridheight;
gbc.weightx = weightx;
gbc.weighty = weighty;
gbc.fill = fill;
if (is != null) gbc.insets = is;
gbl.setConstraints(component, gbc);
}
/**
* Creates and returns a Container containin the buttons. The buttons
* are created by calling <code>getButtons</code>.
*/
protected Container createButtonArea() {
Container b = super.createButtonArea();
if(b != null && b.getLayout() instanceof ButtonAreaLayout) {
((ButtonAreaLayout)b.getLayout()).setCentersChildren(false);
}
return b;
}
/**
* Creates and returns a Container containin the buttons. The buttons
* are created by calling <code>getButtons</code>.
*/
protected Container createButtonArea() {
Container b = super.createButtonArea();
if(b != null && b.getLayout() instanceof ButtonAreaLayout) {
((ButtonAreaLayout)b.getLayout()).setCentersChildren(false);
}
return b;
}
/**
* Sets the text.
*
* The position is ignored if the location is set to a corner.
*
* @param _text
*/
public void setText(String _text) {
_text = TeXParser.parseTeX(_text);
if(text==_text) {
return;
}
text = _text;
if(text==null) {
text = ""; //$NON-NLS-1$
}
final Container c = this.getParent();
if(c==null) {
return;
}
Runnable runner = new Runnable() {
public synchronized void run() {
if(c.getLayout() instanceof OSPLayout) {
((OSPLayout) c.getLayout()).quickLayout(c, TextPanel.this);
repaint();
} else {
c.validate();
}
}
};
if(SwingUtilities.isEventDispatchThread()) {
runner.run();
} else {
SwingUtilities.invokeLater(runner);
}
}
/**
* Creates and returns a Container containin the buttons. The buttons
* are created by calling <code>getButtons</code>.
*/
protected Container createButtonArea() {
Container b = super.createButtonArea();
if(b != null && b.getLayout() instanceof ButtonAreaLayout) {
((ButtonAreaLayout)b.getLayout()).setCentersChildren(false);
}
return b;
}
/**
* Add a component to the PolicyTool window
*/
void addNewComponent(Container container, JComponent component,
int index, int gridx, int gridy, int gridwidth, int gridheight,
double weightx, double weighty, int fill, Insets is) {
if (container instanceof JFrame) {
container = ((JFrame)container).getContentPane();
} else if (container instanceof JDialog) {
container = ((JDialog)container).getContentPane();
}
// add the component at the specified gridbag index
container.add(component, index);
// set the constraints
GridBagLayout gbl = (GridBagLayout)container.getLayout();
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = gridx;
gbc.gridy = gridy;
gbc.gridwidth = gridwidth;
gbc.gridheight = gridheight;
gbc.weightx = weightx;
gbc.weighty = weighty;
gbc.fill = fill;
if (is != null) gbc.insets = is;
gbl.setConstraints(component, gbc);
}
/**
* Add a component to the PolicyTool window
*/
void addNewComponent(Container container, JComponent component,
int index, int gridx, int gridy, int gridwidth, int gridheight,
double weightx, double weighty, int fill, Insets is) {
if (container instanceof JFrame) {
container = ((JFrame)container).getContentPane();
} else if (container instanceof JDialog) {
container = ((JDialog)container).getContentPane();
}
// add the component at the specified gridbag index
container.add(component, index);
// set the constraints
GridBagLayout gbl = (GridBagLayout)container.getLayout();
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = gridx;
gbc.gridy = gridy;
gbc.gridwidth = gridwidth;
gbc.gridheight = gridheight;
gbc.weightx = weightx;
gbc.weighty = weighty;
gbc.fill = fill;
if (is != null) gbc.insets = is;
gbl.setConstraints(component, gbc);
}
/**
* Add a component to the PolicyTool window
*/
void addNewComponent(Container container, JComponent component,
int index, int gridx, int gridy, int gridwidth, int gridheight,
double weightx, double weighty, int fill, Insets is) {
if (container instanceof JFrame) {
container = ((JFrame)container).getContentPane();
} else if (container instanceof JDialog) {
container = ((JDialog)container).getContentPane();
}
// add the component at the specified gridbag index
container.add(component, index);
// set the constraints
GridBagLayout gbl = (GridBagLayout)container.getLayout();
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = gridx;
gbc.gridy = gridy;
gbc.gridwidth = gridwidth;
gbc.gridheight = gridheight;
gbc.weightx = weightx;
gbc.weighty = weighty;
gbc.fill = fill;
if (is != null) gbc.insets = is;
gbl.setConstraints(component, gbc);
}
/**
* Creates and returns a Container containin the buttons. The buttons
* are created by calling <code>getButtons</code>.
*/
protected Container createButtonArea() {
Container b = super.createButtonArea();
if(b != null && b.getLayout() instanceof ButtonAreaLayout) {
((ButtonAreaLayout)b.getLayout()).setCentersChildren(false);
}
return b;
}
/**
* Add a component to the PolicyTool window
*/
void addNewComponent(Container container, JComponent component,
int index, int gridx, int gridy, int gridwidth, int gridheight,
double weightx, double weighty, int fill, Insets is) {
if (container instanceof JFrame) {
container = ((JFrame)container).getContentPane();
} else if (container instanceof JDialog) {
container = ((JDialog)container).getContentPane();
}
// add the component at the specified gridbag index
container.add(component, index);
// set the constraints
GridBagLayout gbl = (GridBagLayout)container.getLayout();
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = gridx;
gbc.gridy = gridy;
gbc.gridwidth = gridwidth;
gbc.gridheight = gridheight;
gbc.weightx = weightx;
gbc.weighty = weighty;
gbc.fill = fill;
if (is != null) gbc.insets = is;
gbl.setConstraints(component, gbc);
}
/**
* Creates and returns a Container containin the buttons. The buttons
* are created by calling <code>getButtons</code>.
*/
protected Container createButtonArea() {
Container b = super.createButtonArea();
if(b != null && b.getLayout() instanceof ButtonAreaLayout) {
((ButtonAreaLayout)b.getLayout()).setCentersChildren(false);
}
return b;
}
private static SpringLayout.Constraints getConstraintsForCell(int r, int c, Container parent, int cols) {
SpringLayout layout = (SpringLayout) parent.getLayout();
Component component = parent.getComponent(r * cols + c);
return layout.getConstraints(component);
}
private static SpringLayout.Constraints getConstraintsForCell(int row, int col,
Container parent, int cols) {
final SpringLayout layout = (SpringLayout) parent.getLayout();
final Component c = parent.getComponent(row * cols + col);
return layout.getConstraints(c);
}