Keylistener sur le composite parent
Bonjour,
J'ai un composite parent (Planning) contenant des composites enfants (Cellules du planning).
Afin de faire, fonctionner mon KeyListener, pour sélectionner mes cellules avec le clavier, j'ai ajouter un KeyListener à chaque cellule...Bof...
Code:
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import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Widget;
public class PlanningComposite extends Composite implements MouseListener, FocusListener, KeyListener{
private Color activeSelectionBackground;
private Color inactiveSelectionBackground;
private Color activeSelectionForeground;
private Color inactiveSelectionForeground;
private static final int NUMBER_DAYS_PER_WEEK = 5;
private static final int NUMBER_AGENT = 6;
private static final String[] dayTitles= {"","lundi","mardi","mercredi","jeudi","vendredi"};
private PlanningCell[] pCells;
private PlanningCell selectedCell;
private int selectedCellIndex;
public PlanningComposite(Composite parent, int style) {
super(parent, style);
this.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
activeSelectionBackground = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
inactiveSelectionBackground = getBackground();
activeSelectionForeground = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION_TEXT);
inactiveSelectionForeground = getForeground();
//Rectangle clientRect = getClientArea();
//this.setSize(clientRect.width, clientRect.height);
GridLayout gridLayout = new GridLayout();
gridLayout.makeColumnsEqualWidth = true;
gridLayout.numColumns = NUMBER_DAYS_PER_WEEK + 1;
gridLayout.marginHeight = 0;
gridLayout.marginWidth = 0;
gridLayout.horizontalSpacing = 0;
gridLayout.verticalSpacing = 0;
setLayout(gridLayout);
drawHeader();
drawCells();
addMouseListener(this);
addFocusListener(this);
addKeyListener(this);
}
private void drawHeader() {
for (int i=0;i < NUMBER_DAYS_PER_WEEK + 1;i++){
Label label = new Label(this, SWT.CENTER);
label.setText(dayTitles[i]);
label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
}
}
private void drawCells() {
int nbOfCells = (NUMBER_DAYS_PER_WEEK +1) * NUMBER_AGENT;
pCells = new PlanningCell[nbOfCells];
for (int i=0;i < nbOfCells;i++){
PlanningCell cell = new PlanningCell(this,SWT.BORDER);
cell.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.GRAB_HORIZONTAL));
pCells[i] = cell;
cell.addMouseListener(this);
cell.addKeyListener(this);
}
}
private int findCell(Widget cellComposite) {
for (int i = 0; i < pCells.length; i++) {
if (pCells[i] == cellComposite) {
selectedCellIndex = i;
return i;
}
}
return -1;
}
private void selectCell(int index) {
//On sort de la méthode si la cellule n'est pas selectionnable
if (index <=0 || index >= (NUMBER_DAYS_PER_WEEK +1) * NUMBER_AGENT
|| index != 0 && ( index % 6 == 0 ) ){
return;
};
//Déselection de la cellule selectionné précédemment
if (selectedCell != null){
selectedCell.setBackground(getBackground());
selectedCell.setForeground(getBackground());
}
//Sélection de la cellule
selectedCell = pCells[index];
selectedCellIndex = index;
selectedCell.setBackground(getSelectionBackgroundColor());
selectedCell.setForeground(getSelectionForegroundColor());
}
private Color getSelectionBackgroundColor() {
return isFocusControl() ? activeSelectionBackground : inactiveSelectionBackground;
}
private Color getSelectionForegroundColor() {
return isFocusControl() ? activeSelectionForeground : inactiveSelectionForeground;
}
@Override
public boolean isFocusControl() {
for (Control control = getDisplay().getFocusControl(); control != null; control = control.getParent()) {
if (control == this) {
return true;
}
}
return false;
}
@Override
public void focusGained(FocusEvent e) {
selectedCell.setBackground(getSelectionBackgroundColor());
selectedCell.setForeground(getSelectionForegroundColor());
}
@Override
public void focusLost(FocusEvent e) {
selectedCell.setBackground(getSelectionBackgroundColor());
selectedCell.setForeground(getSelectionForegroundColor());
}
@Override
public void mouseDoubleClick(MouseEvent e) {
}
@Override
public void mouseDown(MouseEvent e) {
if (e.button == 1) { // Left click
setFocus();
if (e.widget instanceof PlanningCell) {
int index = findCell(e.widget);
selectCell(index);
}
}
}
@Override
public void mouseUp(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void keyPressed(KeyEvent e) {
switch (e.keyCode) {
case SWT.ARROW_LEFT:
selectCell(selectedCellIndex - 1);
break;
case SWT.ARROW_RIGHT:
selectCell(selectedCellIndex + 1);
break;
case SWT.ARROW_UP:
selectCell(selectedCellIndex - 6);
break;
case SWT.ARROW_DOWN:
selectCell(selectedCellIndex + 6);
break;
}
}
@Override
public void keyReleased(KeyEvent e) {
}
} |
Si je ne fais pas
Code:
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cell.addKeyListener(this); |
dans drawCells() , le key listener ne fonctionne pas ....Une idée pour mettre mon Listener sur le composite parent (Planning) et non sur tous les enfants (Cellules du planning)?
Cordialement
