Exemplo n.º 1
0
 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;
 }
Exemplo n.º 2
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;
  }
Exemplo n.º 3
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 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;
 }