sd/source/ui/slidesorter/inc/view/SlsToolTip.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <model/SlsSharedPageDescriptor.hxx>
  23 #include <rtl/ustring.hxx>
  24 #include <vcl/timer.hxx>
  25
  26 namespace sd::slidesorter
  27 {
  28 class SlideSorter;
  29 }
  30
  31 namespace sd::slidesorter::view
  32 {
  33 /** Manage the display of tool tips.  The tool tip text changes when the
  34     mouse is moved from slide to slide or from button to button.
  35     After the mouse enters a slide the first display of the tool tip is
  36     delayed for a short time in order to not draw attention from the slide
  37     or its button bar.
  38 */
  39 class ToolTip
  40 {
  41 public:
  42     ToolTip(SlideSorter& rSlideSorter);
  43     ~ToolTip();
  44
  45     /** Set a new page.  This modifies the default help text.  After a page
  46         change a timer is started to delay the display of the tool tip for
  47         the new page.
  48         @param rpPage
  49             When this is empty then the tool tip is hidden.
  50     */
  51     void SetPage(const model::SharedPageDescriptor& rpPage);
  52
  53     /** Hide the tool tip.
  54         @return
  55             Returns whether the tool tip was visible at the time this method
  56             was called.
  57     */
  58     bool Hide();
  59
  60 private:
  61     SlideSorter& mrSlideSorter;
  62     model::SharedPageDescriptor mpDescriptor;
  63     OUString msCurrentHelpText;
  64     void* mnHelpWindowHandle;
  65     Timer maShowTimer;
  66     Timer maHiddenTimer;
  67
  68     void DoShow();
  69
  70     DECL_LINK(DelayTrigger, Timer*, void);
  71 };
  72
  73 } // end of namespace ::sd::slidesorter::view
  74
  75 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */