예제 #1
0
 /**
  * Returns <code>true</code> if the receiver is enabled, and <code>false</code> otherwise. A
  * disabled menu item is typically not selectable from the user interface and draws with an
  * inactive or "grayed" look.
  *
  * @return the receiver's enabled state
  * @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>
  *
  * @see #isEnabled
  */
 public boolean getEnabled() {
   checkWidget();
   if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
     long /*int*/ hwndCB = parent.hwndCB;
     TBBUTTONINFO info = new TBBUTTONINFO();
     info.cbSize = TBBUTTONINFO.sizeof;
     info.dwMask = OS.TBIF_STATE;
     OS.SendMessage(hwndCB, OS.TB_GETBUTTONINFO, id, info);
     return (info.fsState & OS.TBSTATE_ENABLED) != 0;
   }
   /*
    * Feature in Windows.  For some reason, when the menu item
    * is a separator, GetMenuItemInfo() always indicates that
    * the item is not enabled.  The fix is to track the enabled
    * state for separators.
    */
   if ((style & SWT.SEPARATOR) != 0) {
     return (state & DISABLED) == 0;
   }
   long /*int*/ hMenu = parent.handle;
   MENUITEMINFO info = new MENUITEMINFO();
   info.cbSize = MENUITEMINFO.sizeof;
   info.fMask = OS.MIIM_STATE;
   boolean success;
   if (OS.IsWinCE) {
     int index = parent.indexOf(this);
     if (index == -1) error(SWT.ERROR_CANNOT_GET_ENABLED);
     success = OS.GetMenuItemInfo(hMenu, index, true, info);
   } else {
     success = OS.GetMenuItemInfo(hMenu, id, false, info);
   }
   if (!success) error(SWT.ERROR_CANNOT_GET_ENABLED);
   return (info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) == 0;
 }
예제 #2
0
 /**
  * Returns a rectangle describing the receiver's size and location relative to its parent (or its
  * display if its parent is null).
  *
  * @return the receiver's bounding rectangle
  * @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>
  *
  * @since 3.1
  */
 /*public*/ Rectangle getBounds() {
   checkWidget();
   if (OS.IsWinCE) return new Rectangle(0, 0, 0, 0);
   int index = parent.indexOf(this);
   if (index == -1) return new Rectangle(0, 0, 0, 0);
   if ((parent.style & SWT.BAR) != 0) {
     Decorations shell = parent.parent;
     if (shell.menuBar != parent) {
       return new Rectangle(0, 0, 0, 0);
     }
     long /*int*/ hwndShell = shell.handle;
     MENUBARINFO info1 = new MENUBARINFO();
     info1.cbSize = MENUBARINFO.sizeof;
     if (!OS.GetMenuBarInfo(hwndShell, OS.OBJID_MENU, 1, info1)) {
       return new Rectangle(0, 0, 0, 0);
     }
     MENUBARINFO info2 = new MENUBARINFO();
     info2.cbSize = MENUBARINFO.sizeof;
     if (!OS.GetMenuBarInfo(hwndShell, OS.OBJID_MENU, index + 1, info2)) {
       return new Rectangle(0, 0, 0, 0);
     }
     int x = info2.left - info1.left;
     int y = info2.top - info1.top;
     int width = info2.right - info2.left;
     int height = info2.bottom - info2.top;
     return new Rectangle(x, y, width, height);
   } else {
     long /*int*/ hMenu = parent.handle;
     RECT rect1 = new RECT();
     if (!OS.GetMenuItemRect(0, hMenu, 0, rect1)) {
       return new Rectangle(0, 0, 0, 0);
     }
     RECT rect2 = new RECT();
     if (!OS.GetMenuItemRect(0, hMenu, index, rect2)) {
       return new Rectangle(0, 0, 0, 0);
     }
     int x = rect2.left - rect1.left + 2;
     int y = rect2.top - rect1.top + 2;
     int width = rect2.right - rect2.left;
     int height = rect2.bottom - rect2.top;
     return new Rectangle(x, y, width, height);
   }
 }
예제 #3
0
 /**
  * Sets the selection state of the receiver.
  *
  * <p>When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, it is selected when
  * it is checked.
  *
  * @param selected the new selection state
  * @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 setSelection(boolean selected) {
   checkWidget();
   if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return;
   if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return;
   long /*int*/ hMenu = parent.handle;
   if (OS.IsWinCE) {
     int index = parent.indexOf(this);
     if (index == -1) return;
     int uCheck = OS.MF_BYPOSITION | (selected ? OS.MF_CHECKED : OS.MF_UNCHECKED);
     OS.CheckMenuItem(hMenu, index, uCheck);
   } else {
     MENUITEMINFO info = new MENUITEMINFO();
     info.cbSize = MENUITEMINFO.sizeof;
     info.fMask = OS.MIIM_STATE;
     boolean success = OS.GetMenuItemInfo(hMenu, id, false, info);
     if (!success) error(SWT.ERROR_CANNOT_SET_SELECTION);
     info.fState &= ~OS.MFS_CHECKED;
     if (selected) info.fState |= OS.MFS_CHECKED;
     success = OS.SetMenuItemInfo(hMenu, id, false, info);
     if (!success) {
       /*
        * Bug in Windows.  For some reason SetMenuItemInfo(),
        * returns a fail code when setting the enabled or
        * selected state of a default item, but sets the
        * state anyway.  The fix is to ignore the error.
        *
        * NOTE:  This only happens on Vista.
        */
       if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0)) {
         success = id == OS.GetMenuDefaultItem(hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
       }
       if (!success) {
         int error = OS.GetLastError();
         SWT.error(
             SWT.ERROR_CANNOT_SET_SELECTION,
             null,
             " [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
       }
     }
   }
   parent.redraw();
 }
예제 #4
0
 /**
  * Enables the receiver if the argument is <code>true</code>, and disables it otherwise. A
  * disabled menu item is typically not selectable from the user interface and draws with an
  * inactive or "grayed" look.
  *
  * @param enabled the new enabled state
  * @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 setEnabled(boolean enabled) {
   checkWidget();
   if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
     long /*int*/ hwndCB = parent.hwndCB;
     TBBUTTONINFO info = new TBBUTTONINFO();
     info.cbSize = TBBUTTONINFO.sizeof;
     info.dwMask = OS.TBIF_STATE;
     OS.SendMessage(hwndCB, OS.TB_GETBUTTONINFO, id, info);
     info.fsState &= ~OS.TBSTATE_ENABLED;
     if (enabled) info.fsState |= OS.TBSTATE_ENABLED;
     OS.SendMessage(hwndCB, OS.TB_SETBUTTONINFO, id, info);
   } else {
     /*
      * Feature in Windows.  For some reason, when the menu item
      * is a separator, GetMenuItemInfo() always indicates that
      * the item is not enabled.  The fix is to track the enabled
      * state for separators.
      */
     if ((style & SWT.SEPARATOR) != 0) {
       if (enabled) {
         state &= ~DISABLED;
       } else {
         state |= DISABLED;
       }
     }
     long /*int*/ hMenu = parent.handle;
     if (OS.IsWinCE) {
       int index = parent.indexOf(this);
       if (index == -1) return;
       int uEnable = OS.MF_BYPOSITION | (enabled ? OS.MF_ENABLED : OS.MF_GRAYED);
       OS.EnableMenuItem(hMenu, index, uEnable);
     } else {
       MENUITEMINFO info = new MENUITEMINFO();
       info.cbSize = MENUITEMINFO.sizeof;
       info.fMask = OS.MIIM_STATE;
       boolean success = OS.GetMenuItemInfo(hMenu, id, false, info);
       if (!success) {
         int error = OS.GetLastError();
         SWT.error(
             SWT.ERROR_CANNOT_SET_ENABLED,
             null,
             " [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
       }
       int bits = OS.MFS_DISABLED | OS.MFS_GRAYED;
       if (enabled) {
         if ((info.fState & bits) == 0) return;
         info.fState &= ~bits;
       } else {
         if ((info.fState & bits) == bits) return;
         info.fState |= bits;
       }
       success = OS.SetMenuItemInfo(hMenu, id, false, info);
       if (!success) {
         /*
          * Bug in Windows.  For some reason SetMenuItemInfo(),
          * returns a fail code when setting the enabled or
          * selected state of a default item, but sets the
          * state anyway.  The fix is to ignore the error.
          *
          * NOTE:  This only happens on Vista.
          */
         if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0)) {
           success = id == OS.GetMenuDefaultItem(hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
         }
         if (!success) {
           int error = OS.GetLastError();
           SWT.error(
               SWT.ERROR_CANNOT_SET_ENABLED,
               null,
               " [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
         }
       }
     }
   }
   parent.destroyAccelerators();
   parent.redraw();
 }