public void positionWindow(boolean resetToDefault) {
String mapWindow;
mapShellBounds = mapShell.getBounds();
mapWindow = prefs.get(RadarConsts.PREF_KEY_MAP_WINDOW, "");
if (mapWindow.equals("") || resetToDefault) {
Rectangle dispBounds, tableBounds;
dispBounds = ((Display.getCurrent()).getPrimaryMonitor()).getClientArea();
tableBounds = display.getShells()[1].getBounds();
mapShellBounds.width = dispBounds.width - tableBounds.width;
mapShellBounds.height = dispBounds.height;
mapShellBounds.x = dispBounds.x + tableBounds.width;
mapShellBounds.y = dispBounds.y;
} else {
String[] tokens = mapWindow.split(",");
mapShellBounds =
new Rectangle(
new Integer(tokens[0]), // X value
new Integer(tokens[1]), // Y value
new Integer(tokens[2]), // Width
new Integer(tokens[3]) // Height
);
}
mapShell.setBounds(mapShellBounds);
}
public static int getColumnAtPos(TreeItem item, int x, int y) {
int columnCount = item.getParent().getColumnCount();
for (int i = 0; i < columnCount; i++) {
Rectangle rect = item.getBounds(i);
if (rect.contains(x, y)) {
return i;
}
}
return -1;
}
public static void packColumns(@NotNull Tree tree, boolean fit, @Nullable float[] ratios) {
tree.setRedraw(false);
try {
// Check for disposed items
// TODO: it looks like SWT error. Sometimes tree items are disposed and NPE is thrown from
// column.pack
for (TreeItem item : tree.getItems()) {
if (item.isDisposed()) {
return;
}
}
int totalWidth = 0;
final TreeColumn[] columns = tree.getColumns();
for (TreeColumn column : columns) {
column.pack();
totalWidth += column.getWidth();
}
Rectangle clientArea = tree.getClientArea();
if (clientArea.isEmpty()) {
return;
}
if (fit) {
int areaWidth = clientArea.width;
if (tree.getVerticalBar() != null) {
areaWidth -= tree.getVerticalBar().getSize().x;
}
if (totalWidth > areaWidth) {
int extraSpace = totalWidth - areaWidth;
for (TreeColumn tc : columns) {
double ratio = (double) tc.getWidth() / totalWidth;
tc.setWidth((int) (tc.getWidth() - extraSpace * ratio));
}
} else if (totalWidth < areaWidth) {
float extraSpace = areaWidth - totalWidth;
if (columns.length > 0) {
if (ratios == null || ratios.length < columns.length) {
extraSpace /= columns.length;
extraSpace--;
for (TreeColumn tc : columns) {
tc.setWidth((int) (tc.getWidth() + extraSpace));
}
} else {
for (int i = 0; i < columns.length; i++) {
TreeColumn tc = columns[i];
tc.setWidth((int) (tc.getWidth() + extraSpace * ratios[i]));
}
}
}
}
}
} finally {
tree.setRedraw(true);
}
}
void tableMouseDown(Event event) {
if (isDisposed() || !isVisible()) return;
Point pt = new Point(event.x, event.y);
int lineWidth = table.getLinesVisible() ? table.getGridLineWidth() : 0;
TableItem item = table.getItem(pt);
if ((table.getStyle() & SWT.FULL_SELECTION) != 0) {
if (item == null) return;
} else {
int start = item != null ? table.indexOf(item) : table.getTopIndex();
int end = table.getItemCount();
Rectangle clientRect = table.getClientArea();
for (int i = start; i < end; i++) {
TableItem nextItem = table.getItem(i);
Rectangle rect = nextItem.getBounds(0);
if (pt.y >= rect.y && pt.y < rect.y + rect.height + lineWidth) {
item = nextItem;
break;
}
if (rect.y > clientRect.y + clientRect.height) return;
}
if (item == null) return;
}
TableColumn newColumn = null;
int columnCount = table.getColumnCount();
if (columnCount == 0) {
if ((table.getStyle() & SWT.FULL_SELECTION) == 0) {
Rectangle rect = item.getBounds(0);
rect.width += lineWidth;
rect.height += lineWidth;
if (!rect.contains(pt)) return;
}
} else {
for (int i = 0; i < columnCount; i++) {
Rectangle rect = item.getBounds(i);
rect.width += lineWidth;
rect.height += lineWidth;
if (rect.contains(pt)) {
newColumn = table.getColumn(i);
break;
}
}
if (newColumn == null) {
if ((table.getStyle() & SWT.FULL_SELECTION) == 0) return;
newColumn = table.getColumn(0);
}
}
setRowColumn(item, newColumn, true);
setFocus();
return;
}
public static void main(String[] args) {
final Display display = new Display();
final Image image = display.getSystemImage(SWT.ICON_INFORMATION);
final Shell shell = new Shell(display, SWT.NO_TRIM);
Region region = new Region();
final ImageData imageData = image.getImageData();
if (imageData.alphaData != null) {
Rectangle pixel = new Rectangle(0, 0, 1, 1);
for (int y = 0; y < imageData.height; y++) {
for (int x = 0; x < imageData.width; x++) {
if (imageData.getAlpha(x, y) == 255) {
pixel.x = imageData.x + x;
pixel.y = imageData.y + y;
region.add(pixel);
}
}
}
} else {
ImageData mask = imageData.getTransparencyMask();
Rectangle pixel = new Rectangle(0, 0, 1, 1);
for (int y = 0; y < mask.height; y++) {
for (int x = 0; x < mask.width; x++) {
if (mask.getPixel(x, y) != 0) {
pixel.x = imageData.x + x;
pixel.y = imageData.y + y;
region.add(pixel);
}
}
}
}
shell.setRegion(region);
Listener l =
new Listener() {
/** The x/y of the MouseDown, relative to top-left of the shell. */
int startX, startY;
@Override
public void handleEvent(Event e) {
if (e.type == SWT.KeyDown && e.character == SWT.ESC) {
shell.dispose();
}
if (e.type == SWT.MouseDown && e.button == 1) {
Point p = shell.toDisplay(e.x, e.y);
Point loc = shell.getLocation();
startX = p.x - loc.x;
startY = p.y - loc.y;
}
if (e.type == SWT.MouseMove && (e.stateMask & SWT.BUTTON1) != 0) {
Point p = shell.toDisplay(e.x, e.y);
p.x -= startX;
p.y -= startY;
shell.setLocation(p);
}
if (e.type == SWT.Paint) {
e.gc.drawImage(image, imageData.x, imageData.y);
}
}
};
shell.addListener(SWT.KeyDown, l);
shell.addListener(SWT.MouseDown, l);
shell.addListener(SWT.MouseMove, l);
shell.addListener(SWT.Paint, l);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
region.dispose();
image.dispose();
display.dispose();
}
void keyDown(Event event) {
if (row == null) return;
switch (event.character) {
case SWT.CR:
notifyListeners(SWT.DefaultSelection, new Event());
return;
}
int rowIndex = table.indexOf(row);
int columnIndex = column == null ? 0 : table.indexOf(column);
switch (event.keyCode) {
case SWT.ARROW_UP:
setRowColumn(Math.max(0, rowIndex - 1), columnIndex, true);
break;
case SWT.ARROW_DOWN:
setRowColumn(Math.min(rowIndex + 1, table.getItemCount() - 1), columnIndex, true);
break;
case SWT.ARROW_LEFT:
case SWT.ARROW_RIGHT:
{
int columnCount = table.getColumnCount();
if (columnCount == 0) break;
int[] order = table.getColumnOrder();
int index = 0;
while (index < order.length) {
if (order[index] == columnIndex) break;
index++;
}
if (index == order.length) index = 0;
int leadKey = (getStyle() & SWT.RIGHT_TO_LEFT) != 0 ? SWT.ARROW_RIGHT : SWT.ARROW_LEFT;
if (event.keyCode == leadKey) {
setRowColumn(rowIndex, order[Math.max(0, index - 1)], true);
} else {
setRowColumn(rowIndex, order[Math.min(columnCount - 1, index + 1)], true);
}
break;
}
case SWT.HOME:
setRowColumn(0, columnIndex, true);
break;
case SWT.END:
{
int i = table.getItemCount() - 1;
setRowColumn(i, columnIndex, true);
break;
}
case SWT.PAGE_UP:
{
int index = table.getTopIndex();
if (index == rowIndex) {
Rectangle rect = table.getClientArea();
TableItem item = table.getItem(index);
Rectangle itemRect = item.getBounds(0);
rect.height -= itemRect.y;
int height = table.getItemHeight();
int page = Math.max(1, rect.height / height);
index = Math.max(0, index - page + 1);
}
setRowColumn(index, columnIndex, true);
break;
}
case SWT.PAGE_DOWN:
{
int index = table.getTopIndex();
Rectangle rect = table.getClientArea();
TableItem item = table.getItem(index);
Rectangle itemRect = item.getBounds(0);
rect.height -= itemRect.y;
int height = table.getItemHeight();
int page = Math.max(1, rect.height / height);
int end = table.getItemCount() - 1;
index = Math.min(end, index + page - 1);
if (index == rowIndex) {
index = Math.min(end, index + page - 1);
}
setRowColumn(index, columnIndex, true);
break;
}
}
}