int XKeyPress(int w, int client_data, int call_data, int continue_to_dispatch) {
int result = 0;
XKeyEvent xEvent = new XKeyEvent();
OS.memmove(xEvent, call_data, XKeyEvent.sizeof);
int[] keysym = new int[1];
OS.XLookupString(xEvent, null, 0, keysym, null);
keysym[0] &= 0xFFFF;
switch (keysym[0]) {
case OS.XK_space:
click(false, xEvent.state);
result = 1;
break;
case OS.XK_Down:
if ((style & SWT.DROP_DOWN) != 0) {
click(true, xEvent.state);
result = 1;
}
break;
}
/*
* Forward the key event to the parent.
* This is necessary so that key listeners
* in the parent will be called, despite the
* fact that the event did not really occur
* in X in the parent. This is done to be
* compatible with Windows.
*/
xEvent.window = OS.XtWindow(parent.handle);
// OS.memmove (callData, xEvent, XKeyEvent.sizeof);
parent.XKeyPress(w, client_data, call_data, continue_to_dispatch);
if (result == 1) {
OS.memmove(continue_to_dispatch, new int[1], 4);
}
return result;
}
int XKeyPress(int w, int client_data, int call_data, int continue_to_dispatch) {
int result = super.XKeyPress(w, client_data, call_data, continue_to_dispatch);
if (result != 0) return result;
XKeyEvent xEvent = new XKeyEvent();
OS.memmove(xEvent, call_data, XKeyEvent.sizeof);
byte[] buffer = new byte[1];
int[] keysym = new int[1];
OS.XLookupString(xEvent, buffer, buffer.length, keysym, null);
switch (keysym[0]) {
case OS.XK_Left:
case OS.XK_Right:
case OS.XK_Up:
case OS.XK_Down:
int xChange = 0, yChange = 0;
int stepSize = PAGE_INCREMENT;
if ((xEvent.state & OS.ControlMask) != 0) stepSize = INCREMENT;
if ((style & SWT.VERTICAL) != 0) {
if (keysym[0] == OS.XK_Up || keysym[0] == OS.XK_Down) break;
xChange = keysym[0] == OS.XK_Left ? -stepSize : stepSize;
} else {
if (keysym[0] == OS.XK_Left || keysym[0] == OS.XK_Right) break;
yChange = keysym[0] == OS.XK_Up ? -stepSize : stepSize;
}
int[] argList1 = {OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0};
OS.XtGetValues(handle, argList1, argList1.length / 2);
int border = argList1[5];
int width = argList1[1] + (border * 2), height = argList1[3] + (border * 2);
int[] argList2 = {OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0};
OS.XtGetValues(parent.handle, argList2, argList2.length / 2);
int parentBorder = argList2[5];
int parentWidth = argList2[1] + (parentBorder * 2);
int parentHeight = argList2[3] + (parentBorder * 2);
int newX = lastX, newY = lastY;
if ((style & SWT.VERTICAL) != 0) {
newX =
Math.min(Math.max(0, lastX + xChange - parentBorder - startX), parentWidth - width);
} else {
newY =
Math.min(Math.max(0, lastY + yChange - parentBorder - startY), parentHeight - height);
}
if (newX == lastX && newY == lastY) return result;
/* Ensure that the pointer image does not change */
int xDisplay = display.xDisplay;
int xWindow = OS.XtWindow(parent.handle);
int ptrGrabResult =
OS.XGrabPointer(
xDisplay,
xWindow,
1,
OS.None,
OS.GrabModeAsync,
OS.GrabModeAsync,
OS.None,
cursor,
OS.CurrentTime);
Event event = new Event();
event.time = xEvent.time;
event.x = newX;
event.y = newY;
event.width = width;
event.height = height;
sendEvent(SWT.Selection, event);
if (ptrGrabResult == OS.GrabSuccess) OS.XUngrabPointer(xDisplay, OS.CurrentTime);
if (isDisposed()) break;
if (event.doit) {
lastX = event.x;
lastY = event.y;
if ((style & SWT.SMOOTH) != 0) {
setBounds(event.x, event.y, width, height);
if (isDisposed()) break;
}
int cursorX = event.x, cursorY = event.y;
if ((style & SWT.VERTICAL) != 0) {
cursorY += height / 2;
} else {
cursorX += width / 2;
}
OS.XWarpPointer(xDisplay, OS.None, xWindow, 0, 0, 0, 0, cursorX, cursorY);
}
break;
}
return result;
}
int XKeyPress(int w, int client_data, int call_data, int continue_to_dispatch) {
int result = super.XKeyPress(w, client_data, call_data, continue_to_dispatch);
if (result != 0) return result;
XKeyEvent keyEvent = new XKeyEvent();
OS.memmove(keyEvent, call_data, XKeyEvent.sizeof);
if (keyEvent.keycode != 0) {
int[] keysym = new int[1];
OS.XLookupString(keyEvent, null, 0, keysym, null);
keysym[0] &= 0xFFFF;
int xChange = 0, yChange = 0;
int stepSize = ((keyEvent.state & OS.ControlMask) != 0) ? STEPSIZE_SMALL : STEPSIZE_LARGE;
switch (keysym[0]) {
case OS.XK_KP_Enter:
case OS.XK_Return:
tracking = false;
/* Eat the subsequent KeyRelease event */
OS.XtAppNextEvent(OS.XtDisplayToApplicationContext(keyEvent.display), call_data);
break;
case OS.XK_Escape:
tracking = false;
cancelled = true;
/* Eat the subsequent KeyRelease event */
OS.XtAppNextEvent(OS.XtDisplayToApplicationContext(keyEvent.display), call_data);
break;
case OS.XK_Left:
xChange = -stepSize;
break;
case OS.XK_Right:
xChange = stepSize;
break;
case OS.XK_Up:
yChange = -stepSize;
break;
case OS.XK_Down:
yChange = stepSize;
break;
}
if (xChange != 0 || yChange != 0) {
Rectangle[] oldRectangles = rectangles;
boolean oldStippled = stippled;
Rectangle[] rectsToErase = new Rectangle[rectangles.length];
for (int i = 0; i < rectangles.length; i++) {
Rectangle current = rectangles[i];
rectsToErase[i] = new Rectangle(current.x, current.y, current.width, current.height);
}
Event event = new Event();
event.x = oldX + xChange;
event.y = oldY + yChange;
Point cursorPos;
if ((style & SWT.RESIZE) != 0) {
resizeRectangles(xChange, yChange);
sendEvent(SWT.Resize, event);
/*
* It is possible (but unlikely) that application code
* could have disposed the widget in the resize event.
* If this happens then return false to indicate that
* the move failed.
*/
if (isDisposed()) {
cancelled = true;
return 1;
}
boolean draw = false;
/*
* It is possible that application code could have
* changed the rectangles in the resize event. If this
* happens then only redraw the tracker if the rectangle
* values have changed.
*/
if (rectangles != oldRectangles) {
int length = rectangles.length;
if (length != rectsToErase.length) {
draw = true;
} else {
for (int i = 0; i < length; i++) {
if (!rectangles[i].equals(rectsToErase[i])) {
draw = true;
break;
}
}
}
} else {
draw = true;
}
if (draw) {
drawRectangles(rectsToErase, oldStippled);
update();
drawRectangles(rectangles, stippled);
}
cursorPos = adjustResizeCursor();
} else {
moveRectangles(xChange, yChange);
sendEvent(SWT.Move, event);
/*
* It is possible (but unlikely) that application code
* could have disposed the widget in the move event.
* If this happens then return false to indicate that
* the move failed.
*/
if (isDisposed()) {
cancelled = true;
return 1;
}
boolean draw = false;
/*
* It is possible that application code could have
* changed the rectangles in the move event. If this
* happens then only redraw the tracker if the rectangle
* values have changed.
*/
if (rectangles != oldRectangles) {
int length = rectangles.length;
if (length != rectsToErase.length) {
draw = true;
} else {
for (int i = 0; i < length; i++) {
if (!rectangles[i].equals(rectsToErase[i])) {
draw = true;
break;
}
}
}
} else {
draw = true;
}
if (draw) {
drawRectangles(rectsToErase, oldStippled);
update();
drawRectangles(rectangles, stippled);
}
cursorPos = adjustMoveCursor();
}
if (cursorPos != null) {
oldX = cursorPos.x;
oldY = cursorPos.y;
}
}
}
return result;
}