int XPointerMotion(int w, int client_data, int call_data, int continue_to_dispatch) {
int result = super.XPointerMotion(w, client_data, call_data, continue_to_dispatch);
if (result != 0) return result;
XMotionEvent xEvent = new XMotionEvent();
OS.memmove(xEvent, call_data, XMotionEvent.sizeof);
if (!dragging || (xEvent.state & OS.Button1Mask) == 0) return result;
short[] x_root = new short[1], y_root = new short[1];
OS.XtTranslateCoords(handle, (short) 0, (short) 0, x_root, y_root);
int eventX = xEvent.x_root - x_root[0], eventY = xEvent.y_root - y_root[0];
int[] argList1 = {
OS.XmNx, 0, OS.XmNy, 0, OS.XmNwidth, 0, OS.XmNheight, 0, OS.XmNborderWidth, 0
};
OS.XtGetValues(handle, argList1, argList1.length / 2);
int border = argList1[9],
x = ((short) argList1[1]) - border,
y = ((short) argList1[3]) - border;
int width = argList1[5] + (border * 2), height = argList1[7] + (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, eventX + x - startX - parentBorder), parentWidth - width);
} else {
newY = Math.min(Math.max(0, eventY + y - startY - parentBorder), parentHeight - height);
}
if (newX == lastX && newY == lastY) return result;
drawBand(lastX, lastY, width, height);
Event event = new Event();
event.time = xEvent.time;
event.x = newX;
event.y = newY;
event.width = width;
event.height = height;
if ((style & SWT.SMOOTH) == 0) {
event.detail = SWT.DRAG;
}
sendEvent(SWT.Selection, event);
if (isDisposed()) return result;
if (event.doit) {
lastX = event.x;
lastY = event.y;
}
parent.update(true);
drawBand(lastX, lastY, width, height);
if ((style & SWT.SMOOTH) != 0) {
setBounds(lastX, lastY, width, height);
// widget could be disposed at this point
}
return result;
}
Point computeSize(GC gc) {
int width = 0, height = 0;
if ((style & SWT.SEPARATOR) != 0) {
if ((parent.style & SWT.HORIZONTAL) != 0) {
width = getWidth();
height = DEFAULT_HEIGHT;
} else {
width = DEFAULT_WIDTH;
height = getWidth();
}
if (control != null) {
height = Math.max(height, control.getMinimumHeight());
}
return new Point(width, height);
}
int[] argList = {
OS.XmNmarginHeight, 0,
OS.XmNmarginWidth, 0,
OS.XmNshadowThickness, 0,
};
OS.XtGetValues(handle, argList, argList.length / 2);
int marginHeight = argList[1], marginWidth = argList[3];
int shadowThickness = argList[5];
if ((parent.style & SWT.FLAT) != 0) {
shadowThickness = Math.min(2, display.buttonShadowThickness);
}
if (text.length() != 0 || image != null) {
int textWidth = 0, textHeight = 0;
if (text.length() != 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC;
Point textExtent = gc.textExtent(text, flags);
textWidth = textExtent.x;
textHeight = textExtent.y;
}
int imageWidth = 0, imageHeight = 0;
if (image != null) {
Rectangle rect = image.getBounds();
imageWidth = rect.width;
imageHeight = rect.height;
}
if ((parent.style & SWT.RIGHT) != 0) {
width = imageWidth + textWidth;
height = Math.max(imageHeight, textHeight);
if (imageWidth != 0 && textWidth != 0) width += 2;
} else {
height = imageHeight + textHeight;
if (imageHeight != 0 && textHeight != 0) height += 2;
width = Math.max(imageWidth, textWidth);
}
} else {
width = DEFAULT_WIDTH;
height = DEFAULT_HEIGHT;
}
if ((style & SWT.DROP_DOWN) != 0) {
width += 12;
}
if (width != 0) {
width += (marginWidth + shadowThickness) * 2 + 2;
} else {
width = DEFAULT_WIDTH;
}
if (height != 0) {
height += (marginHeight + shadowThickness) * 2 + 2;
} else {
height = DEFAULT_HEIGHT;
}
return new Point(width, height);
}
int XmNexposureCallback(int w, int client_data, int call_data) {
if ((style & SWT.SEPARATOR) != 0) return 0;
int xDisplay = OS.XtDisplay(handle);
if (xDisplay == 0) return 0;
int xWindow = OS.XtWindow(handle);
if (xWindow == 0) return 0;
int[] argList = {
OS.XmNcolormap, 0,
OS.XmNwidth, 0,
OS.XmNheight, 0,
};
OS.XtGetValues(handle, argList, argList.length / 2);
int width = argList[3], height = argList[5];
Image currentImage = image;
boolean enabled = getEnabled();
if ((parent.style & SWT.FLAT) != 0) {
boolean hasCursor = hasCursor();
/* Set the shadow thickness */
int thickness = 0;
if (set || (hasCursor && enabled)) {
thickness = Math.min(2, display.buttonShadowThickness);
}
argList = new int[] {OS.XmNshadowThickness, thickness};
OS.XtSetValues(handle, argList, argList.length / 2);
/* Determine if hot image should be used */
if (enabled && hasCursor && hotImage != null) {
currentImage = hotImage;
}
}
GCData data = new GCData();
data.device = display;
data.display = xDisplay;
data.drawable = xWindow;
data.font = parent.font;
data.colormap = argList[1];
int xGC = OS.XCreateGC(xDisplay, xWindow, 0, null);
if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
GC gc = GC.motif_new(xGC, data);
XmAnyCallbackStruct cb = new XmAnyCallbackStruct();
OS.memmove(cb, call_data, XmAnyCallbackStruct.sizeof);
if (cb.event != 0) {
XExposeEvent xEvent = new XExposeEvent();
OS.memmove(xEvent, cb.event, XExposeEvent.sizeof);
Rectangle rect = new Rectangle(xEvent.x, xEvent.y, xEvent.width, xEvent.height);
gc.setClipping(rect);
}
if (!enabled) {
currentImage = disabledImage;
if (currentImage == null && image != null) {
currentImage = new Image(display, image, SWT.IMAGE_DISABLE);
}
Color disabledColor = display.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
gc.setForeground(disabledColor);
} else {
gc.setForeground(parent.getForeground());
}
gc.setBackground(parent.getBackground());
int textX = 0, textY = 0, textWidth = 0, textHeight = 0;
if (text.length() != 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC;
Point textExtent = gc.textExtent(text, flags);
textWidth = textExtent.x;
textHeight = textExtent.y;
}
int imageX = 0, imageY = 0, imageWidth = 0, imageHeight = 0;
if (currentImage != null) {
Rectangle imageBounds = currentImage.getBounds();
imageWidth = imageBounds.width;
imageHeight = imageBounds.height;
}
int spacing = 0;
if (textWidth != 0 && imageWidth != 0) spacing = 2;
if ((parent.style & SWT.RIGHT) != 0) {
imageX = (width - imageWidth - textWidth - spacing) / 2;
imageY = (height - imageHeight) / 2;
textX = spacing + imageX + imageWidth;
textY = (height - textHeight) / 2;
} else {
imageX = (width - imageWidth) / 2;
imageY = (height - imageHeight - textHeight - spacing) / 2;
textX = (width - textWidth) / 2;
textY = spacing + imageY + imageHeight;
}
if ((style & SWT.DROP_DOWN) != 0) {
textX -= 6;
imageX -= 6;
}
if (textWidth > 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC | SWT.DRAW_TRANSPARENT;
gc.drawText(text, textX, textY, flags);
}
if (imageWidth > 0) gc.drawImage(currentImage, imageX, imageY);
if ((style & SWT.DROP_DOWN) != 0) {
int startX = width - 12, startY = (height - 2) / 2;
int[] arrow = {startX, startY, startX + 3, startY + 3, startX + 6, startY};
gc.setBackground(parent.getForeground());
gc.fillPolygon(arrow);
gc.drawPolygon(arrow);
}
gc.dispose();
OS.XFreeGC(xDisplay, xGC);
if (!enabled && disabledImage == null) {
if (currentImage != null) currentImage.dispose();
}
return 0;
}
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;
}