protected void drawCells(
GC gc, Rectangle clipRect, int fromCol, int toCol, int fromRow, int toRow) {
int cnt = 0;
Rectangle r;
if (m_CellEditor != null) {
if (!isCellVisible(m_CellEditor.m_Col, m_CellEditor.m_Row)) {
Rectangle hide = new Rectangle(-101, -101, 100, 100);
m_CellEditor.setBounds(hide);
} else {
m_CellEditor.setBounds(getCellRect(m_CellEditor.m_Col, m_CellEditor.m_Row));
}
}
for (int row = fromRow; row < toRow; row++) {
r = getCellRect(0, row);
if (r.y + r.height < clipRect.y) {
continue;
}
if (r.y > clipRect.y + clipRect.height) {
break;
}
for (int col = fromCol; col < toCol; col++) {
r = getCellRect(col, row);
if (r.x > clipRect.x + clipRect.width) {
break;
}
if (canDrawCell(col, row, clipRect)) {
drawCell(gc, col, row);
cnt++;
}
}
}
}
/**
* This method activated the cell editor on the current focus cell, if the table model allows cell
* editing for this cell.
*/
public void openEditorInFocus() {
m_CellEditor = m_Model.getCellEditor(m_FocusCol, m_FocusRow);
if (m_CellEditor != null) {
Rectangle r = getCellRect(m_FocusCol, m_FocusRow);
m_CellEditor.open(this, m_FocusCol, m_FocusRow, r);
}
}
/*
* Focusses the given Cell. Assumes that the given cell is in the viewable
* area. Does all neccessary redraws.
*/
protected void focusCell(int col, int row, int stateMask) {
GC gc = new GC(this);
// close cell editor if active
if (m_CellEditor != null) m_CellEditor.close(true);
/*
* Special rule: in row selection mode the selection if a fixed cell in
* a non-fixed row is allowed and handled as a selection of a non-fixed
* cell.
*/
if (row >= m_Model.getFixedRowCount()
&& (col >= m_Model.getFixedColumnCount() || m_RowSelectionMode)) {
if ((stateMask & SWT.CTRL) == 0 && (stateMask & SWT.SHIFT) == 0) {
// case: no modifier key
boolean redrawAll = (m_Selection.size() > 1);
int oldFocusRow = m_FocusRow;
int oldFocusCol = m_FocusCol;
clearSelectionWithoutRedraw();
addToSelection(col, row);
m_FocusRow = row;
m_FocusCol = col;
if (redrawAll) redraw();
else if (m_RowSelectionMode) {
if (isRowVisible(oldFocusRow)) drawRow(gc, oldFocusRow);
if (isRowVisible(m_FocusRow)) drawRow(gc, m_FocusRow);
} else {
if (isCellVisible(oldFocusCol, oldFocusRow)) drawCell(gc, oldFocusCol, oldFocusRow);
if (isCellVisible(m_FocusCol, m_FocusRow)) drawCell(gc, m_FocusCol, m_FocusRow);
}
} else if ((stateMask & SWT.CTRL) != 0) {
// case: CTRL key pressed
if (toggleSelection(col, row)) {
m_FocusCol = col;
m_FocusRow = row;
}
if (m_RowSelectionMode) {
drawRow(gc, row);
} else {
drawCell(gc, col, row);
}
} else if ((stateMask & SWT.SHIFT) != 0) {
// case: SHIFT key pressed
if (m_RowSelectionMode) {
if (row < m_FocusRow) {
// backword selection
while (row != m_FocusRow) {
addToSelection(0, --m_FocusRow);
}
} else {
// foreward selection
while (row != m_FocusRow) {
addToSelection(0, ++m_FocusRow);
}
}
} else // cell selection mode
{
if (row < m_FocusRow || (row == m_FocusRow && col < m_FocusCol)) {
// backword selection
while (row != m_FocusRow || col != m_FocusCol) {
m_FocusCol--;
if (m_FocusCol < m_Model.getFixedColumnCount()) {
m_FocusCol = m_Model.getColumnCount();
m_FocusRow--;
}
addToSelection(m_FocusCol, m_FocusRow);
}
} else {
// foreward selection
while (row != m_FocusRow || col != m_FocusCol) {
m_FocusCol++;
if (m_FocusCol == m_Model.getColumnCount()) {
m_FocusCol = m_Model.getFixedColumnCount();
m_FocusRow++;
}
addToSelection(m_FocusCol, m_FocusRow);
}
}
}
redraw();
}
// notify non-fixed cell listeners
fireCellSelection(col, row, stateMask);
} else {
// a fixed cell was focused
drawCell(gc, col, row);
// notify fixed cell listeners
fireFixedCellSelection(col, row, stateMask);
}
gc.dispose();
}