/usr/include/Wt/WOverlayLoadingIndicator is in libwt-dev 3.1.10-1ubuntu2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 | // This may look like C code, but it's really -*- C++ -*-
/*
* Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.
*
* See the LICENSE file for terms of use.
*/
#ifndef WOVERLAY_LOADING_INDICATOR_H_
#define WOVERLAY_LOADING_INDICATOR_H_
#include <Wt/WContainerWidget>
#include <Wt/WLoadingIndicator>
namespace Wt {
class WText;
/*! \class WOverlayLoadingIndicator Wt/WOverlayLoadingIndicator Wt/WOverlayLoadingIndicator
* \brief A more obvious loading indicator that grays the window.
*
* This loading indicator uses a gray semi-transparent overlay to
* darken the window contents, and centers a loading icon (with some
* text).
*
* Usage example:
* \if cpp
* \code
* Wt::WApplication *app = Wt::WApplication::instance();
* app->setLoadingIndicator(new Wt::WOverlayLoadingIndicator());
* \endcode
* \endif
*
* \image html WOverlayLoadingIndicator.png "The overlay loading indicator"
*
* \note For this loading indicator to render properly in IE, you need to
* reset the "body" margin to 0. Using the inline stylesheet, this could
* be done using:
* \if cpp
* \code
* WApplication::instance()->styleSheet().addRule("body", "margin: 0px");
* \endcode
* \endif
*
* <h3>CSS</h3>
*
* This widget does not provide styling,
* and can be styled using inline or external CSS as appropriate.
*
* <h3>i18n</h3>
*
* The strings used in this class can be translated by overriding
* the default values for the following localization keys:
* - Wt.WOverlayLoadingIndicator.Loading: Loading...
*
* \sa WApplication::setLoadingIndicator()
*/
class WT_API WOverlayLoadingIndicator : public WContainerWidget,
public WLoadingIndicator
{
public:
/*! \brief Construct the loading indicator.
* \param styleClass the style class for the central box
* \param backgroundStyleClass the style class for the "background" part
* of the indicator
* \param textStyleClass the style class for the text that is displayed
*
* \note if styleClass is not set, the central box gets the CSS style
* elements
* \code
* background: white;
* border: 3px solid #333333;
* z-index: 10001; visibility: visible;
* position: absolute; left: 50%; top: 50%;
* margin-left: -50px; margin-top: -40px;
* width: 100px; height: 80px;
* font-family: arial,sans-serif;
* text-align: center
* \endcode
* \note if backgroundStyleClass is not set, the background gets the CSS
* style elements
* \code
* background: #DDDDDD;
* height: 100%; width: 100%;
* top: 0px; left: 0px;
* z-index: 10000;
* -moz-background-clip: -moz-initial;
* -moz-background-origin: -moz-initial;
* -moz-background-inline-policy: -moz-initial;
* opacity: 0.5; filter: alpha(opacity=50); -moz-opacity:0.5;
* position: absolute;
* \endcode
*/
WOverlayLoadingIndicator(const WT_USTRING& styleClass = WT_USTRING(),
const WT_USTRING& backgroundStyleClass = WT_USTRING(),
const WT_USTRING& textStyleClass = WT_USTRING());
virtual WWidget *widget() { return this; }
virtual void setMessage(const WString& text);
private:
WContainerWidget *cover_;
WContainerWidget *center_;
WText *text_;
};
}
#endif // WOVERLAY_LOADING_INDICATOR_H_
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