Java Code Examples for org.eclipse.swt.SWT#KEYPAD_4
The following examples show how to use
org.eclipse.swt.SWT#KEYPAD_4 .
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Example 1
| Source File: CalculatorButtonsComposite.java From nebula with Eclipse Public License 2.0 | 4 votes |
|
/**
* Add key listeners
*/
private void addKeyListeners() {
keyListener = new KeyAdapter() {
/**
* @see org.eclipse.swt.events.KeyAdapter#keyPressed(org.eclipse.swt.events.KeyEvent)
*/
@Override
public void keyPressed(final KeyEvent e) {
switch (e.character) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
behaviourEngine.addDigitToDisplay(Integer.parseInt(String.valueOf(e.character)));
return;
case '.':
behaviourEngine.addDecimalPoint();
return;
case '+':
engine.processOperation(CalculatorEngine.OPERATOR_PLUS);
return;
case '-':
engine.processOperation(CalculatorEngine.OPERATOR_MINUS);
return;
case '*':
engine.processOperation(CalculatorEngine.OPERATOR_MULTIPLY);
return;
case '/':
engine.processOperation(CalculatorEngine.OPERATOR_DIVIDE);
return;
case '=':
engine.processEquals();
return;
case '%':
engine.processPerCentageOperation();
return;
}
switch (e.keyCode) {
case SWT.KEYPAD_0:
case SWT.KEYPAD_1:
case SWT.KEYPAD_2:
case SWT.KEYPAD_3:
case SWT.KEYPAD_4:
case SWT.KEYPAD_5:
case SWT.KEYPAD_6:
case SWT.KEYPAD_7:
case SWT.KEYPAD_8:
case SWT.KEYPAD_9:
final int digit = e.keyCode - SWT.KEYCODE_BIT - 47;
behaviourEngine.addDigitToDisplay(digit);
return;
case SWT.KEYPAD_ADD:
engine.processOperation(CalculatorEngine.OPERATOR_PLUS);
return;
case SWT.KEYPAD_SUBTRACT:
engine.processOperation(CalculatorEngine.OPERATOR_MINUS);
return;
case SWT.KEYPAD_DIVIDE:
engine.processOperation(CalculatorEngine.OPERATOR_DIVIDE);
return;
case SWT.KEYPAD_MULTIPLY:
engine.processOperation(CalculatorEngine.OPERATOR_MULTIPLY);
return;
case SWT.KEYPAD_CR:
case SWT.KEYPAD_EQUAL:
case SWT.CR:
engine.processEquals();
return;
case SWT.BS:
behaviourEngine.processBackSpace();
return;
case SWT.ESC:
behaviourEngine.clearResult();
engine.cancel();
return;
}
}
};
for (final Control control : getChildren()) {
control.addKeyListener(keyListener);
}
addKeyListener(keyListener);
}
Example 2
| Source File: TexCellListener.java From texlipse with Eclipse Public License 1.0 | 4 votes |
|
/**
* KeyListener method from KeyListener Interface
*
* Determines the actions to be taken, when a key is pressed. That means
* either moving the editing controls to neigboring cell, if a)
* CTRL+ArrowKey was pressed b) neighboring cell in that direction exists or
* calculating a sum of cells in given direction (and copying it to
* clipboard) c) CTRL+KEYPAD_8,_2,_4 or _6 (up, down, left, right) is
* pressed
*
* @param e key event that occured
*/
public void keyPressed(KeyEvent e) {
if ((e.stateMask & (SWT.CTRL | SWT.ALT | SWT.SHIFT)) != SWT.CTRL)
return;
int row = viewer.getTable().getSelectionIndex();
int columns = viewer.getTable().getColumnCount();
int rows = viewer.getTable().getItemCount();
// FIXME redundant test
if ((e.stateMask & (SWT.CTRL | SWT.ALT | SWT.SHIFT)) == SWT.CTRL) {
//TexRow texRow = (TexRow) texRowList.getRows().get(row);
double sum = 0.0;
switch (e.keyCode) {
case SWT.ARROW_UP:
if (row > 0)
viewer.editElement(viewer.getElementAt(row - 1), column);
break;
case SWT.ARROW_DOWN:
/*
if (row < rows - 1) // TODO else { add one row to the model }
viewer.editElement(viewer.getElementAt(row + 1), column);
*/
if (row >= rows - 1)
texRowList.addRow();
viewer.editElement(viewer.getElementAt(row + 1), column);
break;
case SWT.ARROW_LEFT:
if (column > 0)
viewer.editElement(viewer.getElementAt(row), column - 1);
break;
case SWT.ARROW_RIGHT:
if (column < columns - 1)
viewer.editElement(viewer.getElementAt(row), column + 1);
break;
case SWT.KEYPAD_8:
sum = texRowList.sum(column, row, TexRowList.SUM_UP);
if(row>0) {
viewer.editElement(viewer.getElementAt(row - 1), column);
((TexRow)texRowList.getRows().get(row)).setCol(column,
((int)sum==sum)?Integer.toString((int)sum):Double.toString(sum));
viewer.editElement(viewer.getElementAt(row), column);
}
break;
case SWT.KEYPAD_2:
sum = texRowList.sum(column, row, TexRowList.SUM_DOWN);
if(row<texRowList.getRows().size()-1) {
viewer.editElement(viewer.getElementAt(row + 1), column);
((TexRow)texRowList.getRows().get(row)).setCol(column,
((int)sum==sum)?Integer.toString((int)sum):Double.toString(sum));
viewer.editElement(viewer.getElementAt(row), column);
}
break;
case SWT.KEYPAD_4:
sum = texRowList.sum(column, row, TexRowList.SUM_LEFT);
if(column>0) {
viewer.editElement(viewer.getElementAt(row), column-1);
((TexRow)texRowList.getRows().get(row)).setCol(column,
((int)sum==sum)?Integer.toString((int)sum):Double.toString(sum));
viewer.editElement(viewer.getElementAt(row), column);
}
break;
case SWT.KEYPAD_6:
sum = texRowList.sum(column, row, TexRowList.SUM_RIGHT);
if(column<TexRow.COLUMNS-1) {
viewer.editElement(viewer.getElementAt(row), column+1);
((TexRow)texRowList.getRows().get(row)).setCol(column,
((int)sum==sum)?Integer.toString((int)sum):Double.toString(sum));
viewer.editElement(viewer.getElementAt(row), column);
}
break;
}
}
}
