DiagonalLayout Stretched JButton
Bonjour,
J'ai un petit problème concernant le layout diagonalLayout proposé sur le site d'oracle ...
En effet j'aimerais simplement étirer le dernier bouton sur la largeur de mon ecran tout en concervant le layout et j'arrive pas, pourtant j'ai essayé ce code :
Code:
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| public void stretchLastComponent(Container container){
int nComps = container.getComponentCount();
Component c = container.getComponent(nComps-1);
c.setSize(container.getWidth(), c.getHeight()); |
J'ai également utilisé repaint() et revalidate(), mais sans issue.
Voila la classe utilisée (c'était un travail imposé je ne peut pas changer de layout):
http://docs.oracle.com/javase/tutori...nalLayout.java
Et que je fournie en code également(pour alléger aux membres d'aller vers une autre page):
Code:
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| package layout;
/*
* 1.2+ version. Used by CustomLayoutDemo.java.
*/
import java.awt.*;
public class DiagonalLayout implements LayoutManager {
private int vgap;
private int minWidth = 0, minHeight = 0;
private int preferredWidth = 0, preferredHeight = 0;
private boolean sizeUnknown = true;
public DiagonalLayout() {
this(5);
}
public DiagonalLayout(int v) {
vgap = v;
}
/* Required by LayoutManager. */
public void addLayoutComponent(String name, Component comp) {
}
/* Required by LayoutManager. */
public void removeLayoutComponent(Component comp) {
}
private void setSizes(Container parent) {
int nComps = parent.getComponentCount();
Dimension d = null;
//Reset preferred/minimum width and height.
preferredWidth = 0;
preferredHeight = 0;
minWidth = 0;
minHeight = 0;
for (int i = 0; i < nComps; i++) {
Component c = parent.getComponent(i);
if (c.isVisible()) {
d = c.getPreferredSize();
if (i > 0) {
preferredWidth += d.width/2;
preferredHeight += vgap;
} else {
preferredWidth = d.width;
}
preferredHeight += d.height;
minWidth = Math.max(c.getMinimumSize().width,
minWidth);
minHeight = preferredHeight;
}
}
}
/* Required by LayoutManager. */
public Dimension preferredLayoutSize(Container parent) {
Dimension dim = new Dimension(0, 0);
int nComps = parent.getComponentCount();
setSizes(parent);
//Always add the container's insets!
Insets insets = parent.getInsets();
dim.width = preferredWidth
+ insets.left + insets.right;
dim.height = preferredHeight
+ insets.top + insets.bottom;
sizeUnknown = false;
return dim;
}
/* Required by LayoutManager. */
public Dimension minimumLayoutSize(Container parent) {
Dimension dim = new Dimension(0, 0);
int nComps = parent.getComponentCount();
//Always add the container's insets!
Insets insets = parent.getInsets();
dim.width = minWidth
+ insets.left + insets.right;
dim.height = minHeight
+ insets.top + insets.bottom;
sizeUnknown = false;
return dim;
}
/* Required by LayoutManager. */
/*
* This is called when the panel is first displayed,
* and every time its size changes.
* Note: You CAN'T assume preferredLayoutSize or
* minimumLayoutSize will be called -- in the case
* of applets, at least, they probably won't be.
*/
public void layoutContainer(Container parent) {
Insets insets = parent.getInsets();
int maxWidth = parent.getWidth()
- (insets.left + insets.right);
int maxHeight = parent.getHeight()
- (insets.top + insets.bottom);
int nComps = parent.getComponentCount();
int previousWidth = 0, previousHeight = 0;
int x = 0, y = insets.top;
int rowh = 0, start = 0;
int xFudge = 0, yFudge = 0;
boolean oneColumn = false;
// Go through the components' sizes, if neither
// preferredLayoutSize nor minimumLayoutSize has
// been called.
if (sizeUnknown) {
setSizes(parent);
}
if (maxWidth <= minWidth) {
oneColumn = true;
}
if (maxWidth != preferredWidth) {
xFudge = (maxWidth - preferredWidth)/(nComps - 1);
}
if (maxHeight > preferredHeight) {
yFudge = (maxHeight - preferredHeight)/(nComps - 1);
}
for (int i = 0 ; i < nComps ; i++) {
Component c = parent.getComponent(i);
if (c.isVisible()) {
Dimension d = c.getPreferredSize();
// increase x and y, if appropriate
if (i > 0) {
if (!oneColumn) {
x += previousWidth/2 + xFudge;
}
y += previousHeight + vgap + yFudge;
}
// If x is too large,
if ((!oneColumn) &&
(x + d.width) >
(parent.getWidth() - insets.right)) {
// reduce x to a reasonable number.
x = parent.getWidth()
- insets.bottom - d.width;
}
// If y is too large,
if ((y + d.height)
> (parent.getHeight() - insets.bottom)) {
// do nothing.
// Another choice would be to do what we do to x.
}
// Set the component's size and position.
c.setBounds(x, y, d.width, d.height);
previousWidth = d.width;
previousHeight = d.height;
}
}
}
public String toString() {
String str = "";
return getClass().getName() + "[vgap=" + vgap + str + "]";
}
} |
Merci d'avance.
