Imported GNU Classpath 0.19 + gcj-import-20051115.
* sources.am: Regenerated. * Makefile.in: Likewise. * scripts/makemake.tcl: Use glob -nocomplain. From-SVN: r107049
This commit is contained in:
parent
02e549bfaa
commit
8f523f3a10
1241 changed files with 97711 additions and 25284 deletions
|
@ -45,12 +45,6 @@ import java.awt.Dimension;
|
|||
import java.awt.Insets;
|
||||
import java.awt.LayoutManager2;
|
||||
import java.io.Serializable;
|
||||
import java.util.Collection;
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
import java.util.Vector;
|
||||
|
||||
import gnu.java.awt.AWTUtilities;
|
||||
|
||||
/**
|
||||
* A layout that stacks the children of a container in a Box, either
|
||||
|
@ -62,248 +56,6 @@ import gnu.java.awt.AWTUtilities;
|
|||
public class BoxLayout implements LayoutManager2, Serializable
|
||||
{
|
||||
|
||||
/**
|
||||
* This is an abstraction that allows the BoxLayout algorithm to
|
||||
* be applied to both direction (X and Y) without duplicating the
|
||||
* algorithm. It defines several methods that access properties of
|
||||
* a component for a specific direction.
|
||||
*/
|
||||
static interface Direction
|
||||
{
|
||||
/**
|
||||
* Returns the correct part of <code>d</code> for this direction. This will
|
||||
* be <code>d.width</code> for horizontal and <code>d.height</code> for
|
||||
* vertical direction.
|
||||
*
|
||||
* @param d the size as Dimension object
|
||||
*
|
||||
* @return the correct part of <code>d</code> for this direction
|
||||
*/
|
||||
int size(Dimension d);
|
||||
|
||||
/**
|
||||
* Returns the lower bounds of the {@link Insets} object according to this
|
||||
* direction. This will be <code>insets.top</code> for vertical direction
|
||||
* and <code>insets.left</code> for horizontal direction.
|
||||
*
|
||||
* @param the {@link Insets} object from which to return the lower bounds
|
||||
*
|
||||
* @return the lower bounds of the {@link Insets} object according to this
|
||||
* direction
|
||||
*/
|
||||
int lower(Insets insets);
|
||||
|
||||
/**
|
||||
* Returns the alignment property according to this direction.
|
||||
*
|
||||
* @param comp the Component for which to return the alignment property
|
||||
*
|
||||
* @return the alignment property according to this direction
|
||||
*/
|
||||
float alignment(Component comp);
|
||||
|
||||
/**
|
||||
* Sets the location for Component <code>c</code>. <code>coord1</code>
|
||||
* specifies the coordinate of the location in this direction,
|
||||
* <code>coord2</code> the coordinate of the location in the opposite
|
||||
* direction.
|
||||
*
|
||||
* @param c the Component for which to set the location
|
||||
* @param coord1 the coordinate in this direction
|
||||
* @param coord2 the coordinate in the opposite direction
|
||||
*/
|
||||
void setLocation(Component c, int coord1, int coord2);
|
||||
|
||||
/**
|
||||
* Sets the size for Component <code>c</code>. <code>coord1</code>
|
||||
* specifies the size in this direction,
|
||||
* <code>coord2</code> the size in the opposite
|
||||
* direction.
|
||||
*
|
||||
* @param c the Component for which to set the size
|
||||
* @param size1 the size in this direction
|
||||
* @param size2 the size in the opposite direction
|
||||
*/
|
||||
void setSize(Component c, int size1, int size2);
|
||||
}
|
||||
|
||||
/**
|
||||
* The horizontal direction.
|
||||
*/
|
||||
static class Horizontal implements Direction
|
||||
{
|
||||
/**
|
||||
* Returns the correct part of <code>d</code> for this direction. This will
|
||||
* be <code>d.width</code> for horizontal and <code>d.height</code> for
|
||||
* vertical direction.
|
||||
*
|
||||
* @param d the size as Dimension object
|
||||
*
|
||||
* @return the correct part of <code>d</code> for this direction
|
||||
*/
|
||||
public int size(Dimension d)
|
||||
{
|
||||
return d.width;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the lower bounds of the {@link Insets} object according to this
|
||||
* direction. This will be <code>insets.top</code> for vertical direction
|
||||
* and <code>insets.left</code> for horizontal direction.
|
||||
*
|
||||
* @param insets the {@link Insets} object from which to return the lower
|
||||
* bounds
|
||||
*
|
||||
* @return the lower bounds of the {@link Insets} object according to this
|
||||
* direction
|
||||
*/
|
||||
public int lower(Insets insets)
|
||||
{
|
||||
return insets.left;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the alignment property according to this direction.
|
||||
*
|
||||
* @param comp the Component for which to return the alignment property
|
||||
*
|
||||
* @return the alignment property according to this direction
|
||||
*/
|
||||
public float alignment(Component comp)
|
||||
{
|
||||
return comp.getAlignmentX();
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the location for Component <code>c</code>. <code>coord1</code>
|
||||
* specifies the coordinate of the location in this direction,
|
||||
* <code>coord2</code> the coordinate of the location in the opposite
|
||||
* direction.
|
||||
*
|
||||
* @param c the Component for which to set the location
|
||||
* @param coord1 the coordinate in this direction
|
||||
* @param coord2 the coordinate in the opposite direction
|
||||
*/
|
||||
public void setLocation(Component c, int coord1, int coord2)
|
||||
{
|
||||
c.setLocation(coord1, coord2);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the size for Component <code>c</code>. <code>coord1</code>
|
||||
* specifies the size in this direction,
|
||||
* <code>coord2</code> the size in the opposite
|
||||
* direction.
|
||||
*
|
||||
* @param c the Component for which to set the size
|
||||
* @param size1 the size in this direction
|
||||
* @param size2 the size in the opposite direction
|
||||
*/
|
||||
public void setSize(Component c, int size1, int size2)
|
||||
{
|
||||
c.setSize(size1, size2);
|
||||
}
|
||||
}
|
||||
/**
|
||||
* The vertical direction.
|
||||
*/
|
||||
static class Vertical implements Direction
|
||||
{
|
||||
/**
|
||||
* Returns the correct part of <code>d</code> for this direction. This will
|
||||
* be <code>d.width</code> for horizontal and <code>d.height</code> for
|
||||
* vertical direction.
|
||||
*
|
||||
* @param d the size as Dimension object
|
||||
*
|
||||
* @return the correct part of <code>d</code> for this direction
|
||||
*/
|
||||
public int size(Dimension d)
|
||||
{
|
||||
return d.height;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the lower bounds of the {@link Insets} object according to this
|
||||
* direction. This will be <code>insets.top</code> for vertical direction
|
||||
* and <code>insets.left</code> for horizontal direction.
|
||||
*
|
||||
* @param insets the {@link Insets} object from which to return the lower
|
||||
* bounds
|
||||
*
|
||||
* @return the lower bounds of the {@link Insets} object according to this
|
||||
* direction
|
||||
*/
|
||||
public int lower(Insets insets)
|
||||
{
|
||||
return insets.top;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the alignment property according to this direction.
|
||||
*
|
||||
* @param comp the Component for which to return the alignment property
|
||||
*
|
||||
* @return the alignment property according to this direction
|
||||
*/
|
||||
public float alignment(Component comp)
|
||||
{
|
||||
return comp.getAlignmentY();
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the location for Component <code>c</code>. <code>coord1</code>
|
||||
* specifies the coordinate of the location in this direction,
|
||||
* <code>coord2</code> the coordinate of the location in the opposite
|
||||
* direction.
|
||||
*
|
||||
* @param c the Component for which to set the location
|
||||
* @param coord1 the coordinate in this direction
|
||||
* @param coord2 the coordinate in the opposite direction
|
||||
*/
|
||||
public void setLocation(Component c, int coord1, int coord2)
|
||||
{
|
||||
c.setLocation(coord2, coord1);
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the size for Component <code>c</code>. <code>coord1</code>
|
||||
* specifies the size in this direction,
|
||||
* <code>coord2</code> the size in the opposite
|
||||
* direction.
|
||||
*
|
||||
* @param c the Component for which to set the size
|
||||
* @param size1 the size in this direction
|
||||
* @param size2 the size in the opposite direction
|
||||
*/
|
||||
public void setSize(Component c, int size1, int size2)
|
||||
{
|
||||
c.setSize(size2, size1);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* A helper class that temporarily stores the size specs of a component.
|
||||
*/
|
||||
static class SizeReq
|
||||
{
|
||||
int size;
|
||||
int min;
|
||||
int pref;
|
||||
int max;
|
||||
float align;
|
||||
Component comp;
|
||||
SizeReq(Component comp, Direction dir)
|
||||
{
|
||||
this.min = dir.size(comp.getMinimumSize());
|
||||
this.pref = dir.size(comp.getPreferredSize());
|
||||
this.max = dir.size(comp.getMaximumSize());
|
||||
this.size = dir.size(comp.getSize());
|
||||
this.align = dir.alignment(comp);
|
||||
this.comp = comp;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Specifies that components are laid out left to right.
|
||||
*/
|
||||
|
@ -334,16 +86,50 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
private Container container;
|
||||
|
||||
/*
|
||||
/**
|
||||
* Current type of component layouting. Defaults to X_AXIS.
|
||||
*/
|
||||
private int way = X_AXIS;
|
||||
|
||||
/** Constant for the horizontal direction. */
|
||||
private static final Direction HORIZONTAL = new Horizontal();
|
||||
/**
|
||||
* The size requirements of the containers children for the X direction.
|
||||
*/
|
||||
private SizeRequirements[] xChildren;
|
||||
|
||||
/** Constant for the vertical direction. */
|
||||
private static final Direction VERTICAL = new Vertical();
|
||||
/**
|
||||
* The size requirements of the containers children for the Y direction.
|
||||
*/
|
||||
private SizeRequirements[] yChildren;
|
||||
|
||||
/**
|
||||
* The size requirements of the container to be laid out for the X direction.
|
||||
*/
|
||||
private SizeRequirements xTotal;
|
||||
|
||||
/**
|
||||
* The size requirements of the container to be laid out for the Y direction.
|
||||
*/
|
||||
private SizeRequirements yTotal;
|
||||
|
||||
/**
|
||||
* The offsets of the child components in the X direction.
|
||||
*/
|
||||
private int[] offsetsX;
|
||||
|
||||
/**
|
||||
* The offsets of the child components in the Y direction.
|
||||
*/
|
||||
private int[] offsetsY;
|
||||
|
||||
/**
|
||||
* The spans of the child components in the X direction.
|
||||
*/
|
||||
private int[] spansX;
|
||||
|
||||
/**
|
||||
* The spans of the child components in the Y direction.
|
||||
*/
|
||||
private int[] spansY;
|
||||
|
||||
/**
|
||||
* Constructs a <code>BoxLayout</code> object.
|
||||
|
@ -355,6 +141,9 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public BoxLayout(Container container, int way)
|
||||
{
|
||||
if (way != X_AXIS && way != Y_AXIS && way != LINE_AXIS && way != PAGE_AXIS)
|
||||
throw new AWTError("Invalid axis");
|
||||
|
||||
int width = 0;
|
||||
int height = 0;
|
||||
this.container = container;
|
||||
|
@ -369,6 +158,7 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public void addLayoutComponent(String name, Component component)
|
||||
{
|
||||
// Nothing to do here.
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -378,6 +168,7 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public void removeLayoutComponent(Component component)
|
||||
{
|
||||
// Nothing to do here.
|
||||
}
|
||||
|
||||
private boolean isHorizontalIn(Container parent)
|
||||
|
@ -401,45 +192,16 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public Dimension preferredLayoutSize(Container parent)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
Insets insets = parent.getInsets();
|
||||
int x = 0;
|
||||
int y = 0;
|
||||
|
||||
List children = AWTUtilities.getVisibleChildren(parent);
|
||||
|
||||
if (isHorizontalIn(parent))
|
||||
{
|
||||
x = insets.left + insets.right;
|
||||
// sum up preferred widths of components, find maximum of preferred
|
||||
// heights
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component comp = (Component) i.next();
|
||||
Dimension sz = comp.getPreferredSize();
|
||||
x += sz.width;
|
||||
y = Math.max(y, sz.height);
|
||||
}
|
||||
y += insets.bottom + insets.top;
|
||||
}
|
||||
else
|
||||
{
|
||||
y = insets.top + insets.bottom;
|
||||
// sum up preferred heights of components, find maximum of
|
||||
// preferred widths
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component comp = (Component) i.next();
|
||||
Dimension sz = comp.getPreferredSize();
|
||||
y += sz.height;
|
||||
x = Math.max(x, sz.width);
|
||||
}
|
||||
x += insets.left + insets.right;
|
||||
checkTotalRequirements();
|
||||
Insets i = container.getInsets();
|
||||
return new Dimension(xTotal.preferred + i.left + i.right,
|
||||
yTotal.preferred + i.top + i.bottom);
|
||||
}
|
||||
|
||||
return new Dimension(x, y);
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -451,41 +213,16 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public Dimension minimumLayoutSize(Container parent)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
|
||||
Insets insets = parent.getInsets();
|
||||
int x = insets.left + insets.right;
|
||||
int y = insets.bottom + insets.top;
|
||||
|
||||
List children = AWTUtilities.getVisibleChildren(parent);
|
||||
|
||||
if (isHorizontalIn(parent))
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
// sum up preferred widths of components, find maximum of preferred
|
||||
// heights
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component comp = (Component) i.next();
|
||||
Dimension sz = comp.getMinimumSize();
|
||||
x += sz.width;
|
||||
y = Math.max(y, sz.height);
|
||||
}
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
checkTotalRequirements();
|
||||
Insets i = container.getInsets();
|
||||
return new Dimension(xTotal.minimum + i.left + i.right,
|
||||
yTotal.minimum + i.top + i.bottom);
|
||||
}
|
||||
else
|
||||
{
|
||||
// sum up preferred heights of components, find maximum of
|
||||
// preferred widths
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component comp = (Component) i.next();
|
||||
Dimension sz = comp.getMinimumSize();
|
||||
y += sz.height;
|
||||
x = Math.max(x, sz.width);
|
||||
}
|
||||
}
|
||||
|
||||
return new Dimension(x, y);
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -495,12 +232,20 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public void layoutContainer(Container parent)
|
||||
{
|
||||
if (isHorizontalIn(parent))
|
||||
layoutAlgorithm(parent, HORIZONTAL, VERTICAL);
|
||||
else
|
||||
layoutAlgorithm(parent, VERTICAL, HORIZONTAL);
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
checkLayout();
|
||||
Component[] children = container.getComponents();
|
||||
Insets in = container.getInsets();
|
||||
for (int i = 0; i < children.length; i++)
|
||||
children[i].setBounds(offsetsX[i] + in.left, offsetsY[i] + in.top,
|
||||
spansX[i], spansY[i]);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Adds a component to the layout. Not used in BoxLayout
|
||||
*
|
||||
|
@ -509,6 +254,7 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public void addLayoutComponent(Component child, Object constraints)
|
||||
{
|
||||
// Nothing to do here.
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -520,10 +266,14 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public float getLayoutAlignmentX(Container parent)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
|
||||
return 0;
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
checkTotalRequirements();
|
||||
return xTotal.alignment;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -535,10 +285,14 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public float getLayoutAlignmentY(Container parent)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
|
||||
return 0;
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
checkTotalRequirements();
|
||||
return yTotal.alignment;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -548,8 +302,20 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public void invalidateLayout(Container parent)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
xChildren = null;
|
||||
yChildren = null;
|
||||
xTotal = null;
|
||||
yTotal = null;
|
||||
offsetsX = null;
|
||||
offsetsY = null;
|
||||
spansX = null;
|
||||
spansY = null;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
|
@ -562,188 +328,117 @@ public class BoxLayout implements LayoutManager2, Serializable
|
|||
*/
|
||||
public Dimension maximumLayoutSize(Container parent)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
|
||||
Insets insets = parent.getInsets();
|
||||
int x = insets.left + insets.right;
|
||||
int y = insets.top + insets.bottom;
|
||||
|
||||
List children = AWTUtilities.getVisibleChildren(parent);
|
||||
|
||||
if (isHorizontalIn(parent))
|
||||
synchronized (container.getTreeLock())
|
||||
{
|
||||
|
||||
// sum up preferred widths of components, find maximum of preferred
|
||||
// heights
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component comp = (Component) i.next();
|
||||
Dimension sz = comp.getMaximumSize();
|
||||
x += sz.width;
|
||||
// Check for overflow.
|
||||
if (x < 0)
|
||||
x = Integer.MAX_VALUE;
|
||||
y = Math.max(y, sz.height);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// sum up preferred heights of components, find maximum of
|
||||
// preferred widths
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component comp = (Component) i.next();
|
||||
Dimension sz = comp.getMaximumSize();
|
||||
y += sz.height;
|
||||
// Check for overflow
|
||||
if (y < 0)
|
||||
y = Integer.MAX_VALUE;
|
||||
x = Math.max(x, sz.width);
|
||||
}
|
||||
}
|
||||
return new Dimension(x, y);
|
||||
}
|
||||
if (container != parent)
|
||||
throw new AWTError("BoxLayout can't be shared");
|
||||
|
||||
/**
|
||||
* Lays out the Container <code>c</code> in the layout direction
|
||||
* <code>layoutDir</code>. The direction that is crossing the layout
|
||||
* direction is specified in <code>crossDir</code>.
|
||||
*
|
||||
* @param parent
|
||||
* @param layoutDir
|
||||
* @param crossDir
|
||||
*/
|
||||
void layoutAlgorithm(Container parent, Direction layoutDir, Direction crossDir)
|
||||
{
|
||||
if (parent != container)
|
||||
throw new AWTError("invalid parent");
|
||||
|
||||
Dimension parentSize = parent.getSize();
|
||||
Insets insets = parent.getInsets();
|
||||
Dimension innerSize = new Dimension(parentSize.width - insets.left
|
||||
- insets.right, parentSize.height
|
||||
- insets.bottom - insets.top);
|
||||
|
||||
// Set all components to their preferredSizes and sum up the allocated
|
||||
// space. Create SizeReqs for each component and store them in
|
||||
// sizeReqs. Find the maximum size in the crossing direction.
|
||||
List children = AWTUtilities.getVisibleChildren(parent);
|
||||
Vector sizeReqs = new Vector();
|
||||
int allocated = 0;
|
||||
for (Iterator i = children.iterator(); i.hasNext();)
|
||||
{
|
||||
Component c = (Component) i.next();
|
||||
SizeReq sizeReq = new SizeReq(c, layoutDir);
|
||||
int preferred = layoutDir.size(c.getPreferredSize());
|
||||
sizeReq.size = preferred;
|
||||
allocated += preferred;
|
||||
sizeReqs.add(sizeReq);
|
||||
}
|
||||
|
||||
// Distribute remaining space (may be positive or negative) over components
|
||||
int remainder = layoutDir.size(innerSize) - allocated;
|
||||
distributeSpace(sizeReqs, remainder, layoutDir);
|
||||
|
||||
// Resize and relocate components. If the component can be sized to
|
||||
// take the full space in the crossing direction, then do so, otherwise
|
||||
// align according to its alingnmentX or alignmentY property.
|
||||
int loc = 0;
|
||||
int offset1 = layoutDir.lower(insets);
|
||||
int offset2 = crossDir.lower(insets);
|
||||
for (Iterator i = sizeReqs.iterator(); i.hasNext();)
|
||||
{
|
||||
SizeReq sizeReq = (SizeReq) i.next();
|
||||
Component c = sizeReq.comp;
|
||||
int availCrossSize = crossDir.size(innerSize);
|
||||
int maxCross = crossDir.size(c.getMaximumSize());
|
||||
int crossSize = Math.min(availCrossSize, maxCross);
|
||||
int crossRemainder = availCrossSize - crossSize;
|
||||
int crossLoc = (int) (crossDir.alignment(c) * crossRemainder);
|
||||
layoutDir.setSize(c, sizeReq.size, crossSize);
|
||||
layoutDir.setLocation(c, offset1 + loc, offset2 + crossLoc);
|
||||
loc += sizeReq.size;
|
||||
checkTotalRequirements();
|
||||
Insets i = container.getInsets();
|
||||
return new Dimension(xTotal.maximum + i.left + i.right,
|
||||
yTotal.maximum + i.top + i.bottom);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Distributes some space over a set of components. This implementation
|
||||
* tries to set the components as close as possible to their
|
||||
* <code>preferredSize</code>s, and respects the components
|
||||
* <code>minimumSize</code> and <code>maximumSize</code>.
|
||||
*
|
||||
* The algorithm is implemented as follows:
|
||||
*
|
||||
* <ul>
|
||||
* <li>The <code>remainder</code> is divided by the number of components
|
||||
* in <code>freeComponents</code>.</li>
|
||||
* <li>The result is added to (or substracted from) the size of each
|
||||
* component.</li>
|
||||
* <li>If the <code>minimumSize</code> or <code>maximumSize</code> of a
|
||||
* component is exceeded, then this component is set to its
|
||||
* <code>minimumSize</code> or <code>maximumSize</code>, it is removed from
|
||||
* <code>freeComponents</code> and the difference is added to a new
|
||||
* remainder.</li>
|
||||
* <li>Finally, if there is a new remainer != 0 and the
|
||||
* <code>freeComponents.size() != 0</code>, then this method is called
|
||||
* recursivly to distribute the newly allocated remaining space.</li>
|
||||
* </ul>
|
||||
*
|
||||
* @param freeComponents a SizeReq collection for components that have space
|
||||
* left so that they can be moved freely
|
||||
* @param remainder the space that should be distributed between the
|
||||
* components
|
||||
* @param dir the direction in which we operate
|
||||
* Makes sure that the xTotal and yTotal fields are set up correctly. A call
|
||||
* to {@link #invalidateLayout} sets these fields to null and they have to be
|
||||
* recomputed.
|
||||
*/
|
||||
void distributeSpace(Collection freeComponents, int remainder, Direction dir)
|
||||
private void checkTotalRequirements()
|
||||
{
|
||||
// Sum up total available space in components. If the remainder is negative
|
||||
// then we sum up the difference between minSize and size. If remainder
|
||||
// is positive we sum up the difference between maxSize and size.
|
||||
double totalAvailable = 0;
|
||||
for (Iterator i = freeComponents.iterator(); i.hasNext();)
|
||||
if (xTotal == null || yTotal == null)
|
||||
{
|
||||
SizeReq sizeReq = (SizeReq) i.next();
|
||||
if (remainder >= 0)
|
||||
totalAvailable += sizeReq.max - sizeReq.size;
|
||||
checkRequirements();
|
||||
if (isHorizontalIn(container))
|
||||
{
|
||||
xTotal = SizeRequirements.getTiledSizeRequirements(xChildren);
|
||||
yTotal = SizeRequirements.getAlignedSizeRequirements(yChildren);
|
||||
}
|
||||
else
|
||||
totalAvailable += sizeReq.min - sizeReq.size;
|
||||
{
|
||||
xTotal = SizeRequirements.getAlignedSizeRequirements(xChildren);
|
||||
yTotal = SizeRequirements.getTiledSizeRequirements(yChildren);
|
||||
}
|
||||
}
|
||||
if (totalAvailable == 0)
|
||||
if (remainder >= 0)
|
||||
totalAvailable = 1;
|
||||
else
|
||||
totalAvailable = -1;
|
||||
}
|
||||
|
||||
int newRemainder = 0;
|
||||
Vector stillFree = new Vector();
|
||||
for (Iterator i = freeComponents.iterator(); i.hasNext();)
|
||||
/**
|
||||
* Makes sure that the xChildren and yChildren fields are correctly set up.
|
||||
* A call to {@link #invalidateLayout(Container)} sets these fields to null,
|
||||
* so they have to be set up again.
|
||||
*/
|
||||
private void checkRequirements()
|
||||
{
|
||||
if (xChildren == null || yChildren == null)
|
||||
{
|
||||
// Add/substract share to component.
|
||||
SizeReq sizeReq = (SizeReq) i.next();
|
||||
double available = 0;
|
||||
if (remainder >= 0)
|
||||
available = sizeReq.max - sizeReq.size;
|
||||
else
|
||||
available = sizeReq.min - sizeReq.size;
|
||||
int share = (int) ((available / totalAvailable) * remainder);
|
||||
sizeReq.size += share;
|
||||
// check for min/maximumSize
|
||||
if (sizeReq.size < sizeReq.min)
|
||||
{
|
||||
newRemainder += sizeReq.size - sizeReq.min;
|
||||
sizeReq.size = sizeReq.min;
|
||||
}
|
||||
else if (sizeReq.size > sizeReq.max)
|
||||
{
|
||||
newRemainder += sizeReq.size - sizeReq.max;
|
||||
sizeReq.size = sizeReq.max;
|
||||
}
|
||||
else
|
||||
stillFree.add(sizeReq);
|
||||
Component[] children = container.getComponents();
|
||||
xChildren = new SizeRequirements[children.length];
|
||||
yChildren = new SizeRequirements[children.length];
|
||||
for (int i = 0; i < children.length; i++)
|
||||
{
|
||||
if (! children[i].isVisible())
|
||||
{
|
||||
xChildren[i] = new SizeRequirements();
|
||||
yChildren[i] = new SizeRequirements();
|
||||
}
|
||||
else
|
||||
{
|
||||
xChildren[i] =
|
||||
new SizeRequirements(children[i].getMinimumSize().width,
|
||||
children[i].getPreferredSize().width,
|
||||
children[i].getMaximumSize().width,
|
||||
children[i].getAlignmentX());
|
||||
yChildren[i] =
|
||||
new SizeRequirements(children[i].getMinimumSize().height,
|
||||
children[i].getPreferredSize().height,
|
||||
children[i].getMaximumSize().height,
|
||||
children[i].getAlignmentY());
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Makes sure that the offsetsX, offsetsY, spansX and spansY fields are set
|
||||
* up correctly. A call to {@link #invalidateLayout} sets these fields
|
||||
* to null and they have to be recomputed.
|
||||
*/
|
||||
private void checkLayout()
|
||||
{
|
||||
if (offsetsX == null || offsetsY == null || spansX == null
|
||||
|| spansY == null)
|
||||
{
|
||||
checkRequirements();
|
||||
checkTotalRequirements();
|
||||
int len = container.getComponents().length;
|
||||
offsetsX = new int[len];
|
||||
offsetsY = new int[len];
|
||||
spansX = new int[len];
|
||||
spansY = new int[len];
|
||||
|
||||
Insets in = container.getInsets();
|
||||
int width = container.getWidth() - in.left - in.right;
|
||||
int height = container.getHeight() - in.top -in.bottom;
|
||||
|
||||
if (isHorizontalIn(container))
|
||||
{
|
||||
SizeRequirements.calculateTiledPositions(width,
|
||||
xTotal, xChildren,
|
||||
offsetsX, spansX);
|
||||
SizeRequirements.calculateAlignedPositions(height,
|
||||
yTotal, yChildren,
|
||||
offsetsY, spansY);
|
||||
}
|
||||
else
|
||||
{
|
||||
SizeRequirements.calculateAlignedPositions(width,
|
||||
xTotal, xChildren,
|
||||
offsetsX, spansX);
|
||||
SizeRequirements.calculateTiledPositions(height,
|
||||
yTotal, yChildren,
|
||||
offsetsY, spansY);
|
||||
}
|
||||
}
|
||||
// recursivly call this method if necessary
|
||||
if (newRemainder != 0 && stillFree.size() > 0)
|
||||
distributeSpace(stillFree, newRemainder, dir);
|
||||
}
|
||||
}
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue