Example #1
0
 void scrollInPixels(int destX, int destY, int x, int y, int width, int height, boolean all) {
   forceResize();
   boolean isFocus = caret != null && caret.isFocusCaret();
   if (isFocus) caret.killFocus();
   RECT sourceRect = new RECT();
   OS.SetRect(sourceRect, x, y, x + width, y + height);
   RECT clientRect = new RECT();
   OS.GetClientRect(handle, clientRect);
   if (OS.IntersectRect(clientRect, sourceRect, clientRect)) {
     if (OS.IsWinCE) {
       OS.UpdateWindow(handle);
     } else {
       int flags = OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN;
       OS.RedrawWindow(handle, null, 0, flags);
     }
   }
   int deltaX = destX - x, deltaY = destY - y;
   if (findImageControl() != null) {
     if (OS.IsWinCE) {
       OS.InvalidateRect(handle, sourceRect, true);
     } else {
       int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE;
       if (all) flags |= OS.RDW_ALLCHILDREN;
       OS.RedrawWindow(handle, sourceRect, 0, flags);
     }
     OS.OffsetRect(sourceRect, deltaX, deltaY);
     if (OS.IsWinCE) {
       OS.InvalidateRect(handle, sourceRect, true);
     } else {
       int flags = OS.RDW_ERASE | OS.RDW_FRAME | OS.RDW_INVALIDATE;
       if (all) flags |= OS.RDW_ALLCHILDREN;
       OS.RedrawWindow(handle, sourceRect, 0, flags);
     }
   } else {
     int flags = OS.SW_INVALIDATE | OS.SW_ERASE;
     /*
      * Feature in Windows.  If any child in the widget tree partially
      * intersects the scrolling rectangle, Windows moves the child
      * and copies the bits that intersect the scrolling rectangle but
      * does not redraw the child.
      *
      * Feature in Windows.  When any child in the widget tree does not
      * intersect the scrolling rectangle but the parent does intersect,
      * Windows does not move the child.  This is the documented (but
      * strange) Windows behavior.
      *
      * The fix is to not use SW_SCROLLCHILDREN and move the children
      * explicitly after scrolling.
      */
     //		if (all) flags |= OS.SW_SCROLLCHILDREN;
     OS.ScrollWindowEx(handle, deltaX, deltaY, sourceRect, null, 0, null, flags);
   }
   if (all) {
     Control[] children = _getChildren();
     for (int i = 0; i < children.length; i++) {
       Control child = children[i];
       Rectangle rect = child.getBoundsInPixels();
       if (Math.min(x + width, rect.x + rect.width) >= Math.max(x, rect.x)
           && Math.min(y + height, rect.y + rect.height) >= Math.max(y, rect.y)) {
         child.setLocationInPixels(rect.x + deltaX, rect.y + deltaY);
       }
     }
   }
   if (isFocus) caret.setFocus();
 }
Example #2
0
 /**
  * Sets the control that is used to fill the bounds of the item when the item is a <code>SEPARATOR
  * </code>.
  *
  * @param control the new control
  * @exception IllegalArgumentException
  *     <ul>
  *       <li>ERROR_INVALID_ARGUMENT - if the control has been disposed
  *       <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree
  *     </ul>
  *
  * @exception SWTException
  *     <ul>
  *       <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
  *       <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
  *     </ul>
  */
 public void setControl(Control control) {
   checkWidget();
   if (control != null) {
     if (control.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
     if (control.parent != parent) error(SWT.ERROR_INVALID_PARENT);
   }
   if ((style & SWT.SEPARATOR) == 0) return;
   this.control = control;
   /*
    * Feature in Windows.  When a tool bar wraps, tool items
    * with the style BTNS_SEP are used as wrap points.  This
    * means that controls that are placed on top of separator
    * items are not positioned properly.  Also, vertical tool
    * bars are implemented using TB_SETROWS to set the number
    * of rows.  When a control is placed on top of a separator,
    * the height of the separator does not grow.  The fix in
    * both cases is to change the tool item style from BTNS_SEP
    * to BTNS_BUTTON, causing the item to wrap like a tool item
    * button.  The new tool item button is disabled to avoid key
    * traversal and the image is set to I_IMAGENONE to avoid
    * getting the first image from the image list.
    */
   if ((parent.style & (SWT.WRAP | SWT.VERTICAL)) != 0) {
     boolean changed = false;
     long /*int*/ hwnd = parent.handle;
     TBBUTTONINFO info = new TBBUTTONINFO();
     info.cbSize = TBBUTTONINFO.sizeof;
     info.dwMask = OS.TBIF_STYLE | OS.TBIF_STATE;
     OS.SendMessage(hwnd, OS.TB_GETBUTTONINFO, id, info);
     if (control == null) {
       if ((info.fsStyle & OS.BTNS_SEP) == 0) {
         changed = true;
         info.fsStyle &= ~(OS.BTNS_BUTTON | OS.BTNS_SHOWTEXT);
         info.fsStyle |= OS.BTNS_SEP;
         if ((state & DISABLED) != 0) {
           info.fsState &= ~OS.TBSTATE_ENABLED;
         } else {
           info.fsState |= OS.TBSTATE_ENABLED;
         }
       }
     } else {
       if ((info.fsStyle & OS.BTNS_SEP) != 0) {
         changed = true;
         info.fsStyle &= ~OS.BTNS_SEP;
         info.fsStyle |= OS.BTNS_BUTTON | OS.BTNS_SHOWTEXT;
         info.fsState &= ~OS.TBSTATE_ENABLED;
         info.dwMask |= OS.TBIF_IMAGE;
         info.iImage = OS.I_IMAGENONE;
       }
     }
     if (changed) {
       OS.SendMessage(hwnd, OS.TB_SETBUTTONINFO, id, info);
       /*
        * Bug in Windows.  When TB_SETBUTTONINFO changes the
        * style of a tool item from BTNS_SEP to BTNS_BUTTON
        * and the tool bar is wrapped, the tool bar does not
        * redraw properly.  Windows uses separator items as
        * wrap points and sometimes draws etching above or
        * below and entire row.  The fix is to redraw the
        * tool bar.
        */
       if (OS.SendMessage(hwnd, OS.TB_GETROWS, 0, 0) > 1) {
         OS.InvalidateRect(hwnd, null, true);
       }
     }
   }
   resizeControl();
 }