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-/*!
-    \page progress.html
-    \title 11.Showing and reacting to progress information
-    The progress bars give us the information about the progress status of a current task.We can find 
-    progress bar showing up in the Qt Creator window at the left side. Whenever a task is executed
-    a progress bar pops up showing the progress status until the task is completed.
-    
-    \inlineimage qtc-progressbar-11.png
-    
-    \section1 11.1 Creating a progress bar
-    First we will declare the methods required for implementing a "Progress Bar" widget and then we will attach the widget with "Header Filter" in "Find/Replace" 
-    and see it working according to the search progress status.
-    
-    \section2 Step 1. Modification of "HeaderFilter" class     
-    The "HeaderFilter" class discussed in Chapter 9. is further modified. 
-    So we will now declare the methods required for a  "Progress Bar" in the following block of code.    
-    \code
-    struct HeaderFilterData;
-    class HeaderFilter : public Find::IFindFilter
-    {
-        Q_OBJECT
-    public:
-        HeaderFilter();
-        ~HeaderFilter();
-        ...
-        QWidget *createProgressWidget();
-    
-    private:
-        HeaderFilterData *d;
-    };
-    \endcode
-    
-    Here \bold {createProgressWidget()} is not implemented from Find::IFindFilter. It is a custom function written within HeaderFilter class,
-    which takes up the onus of returning a progress display widget.
-    
-    \section2 Step 2. Implementation of the "HeaderFilter" class
-    The private member variables of the \bold {HeaderFilter} class are declared in the structure \bold {HeaderFilterData}
-    \code
-    struct HeaderFilterData
-    {
-        QFutureWatcher<FileSearchResult> watcher;
-        QLabel *resultLabel;
-        ...
-        ...        
-    };
-    \endcode
-    The \bold {constructor} and the \bold {destructor} are as follows.
-    \code    
-    HeaderFilter::HeaderFilter()
-    {
-        
-        d = new HeaderFilterProgressData;
-        d->watcher.setPendingResultsLimit(1);
-        d->resultLabel = 0 ;
-        ...
-    }
-        
-    HeaderFilter::~HeaderFilter()
-    {
-        delete d;
-    }
-    \endcode
-           
-    The \bold {findAll()} method is further modified to create a progress bar popup the bar while searching
-    is going on.
-    \code
-    void HeaderFilter::findAll(const QString &text,QTextDocument::FindFlags findFlags)
-    {
-        ...
-        ...
-        ...
-        
-        //The "progress" is the instance of FutureProgress class.
-        //The "progress" is the pointer to the progress bar created 
-        //Creates and shows the "progress" bar for searching task.
-        Core::FutureProgress *progress = 
-                Core::ICore::instance()->progressManager()->addTask(d->watcher.future(),
-                                                                   "MySearch",
-                                                                    Find::Constants::TASK_SEARCH,
-                                                                    Core::ProgressManager::KeepOnFinish
-                                                                    );
-                                                                            
-        progress->setWidget(createProgressWidget());
-        connect(progress, SIGNAL(clicked()), d->searchResultWindow(), SLOT(popup()));
-    }
-    \endcode
-
-    The \bold {createProgressWidget()} function creates the progress widget.It shows
-    the number of searched items found below and is placed below the progress bar.
-    \code
-    QWidget *HeaderFilter::createProgressWidget()
-    {
-        d->resultLabel = new QLabel;
-        d->resultLabel->setAlignment(Qt::AlignCenter);
-        QFont f = d->resultLabel->font();
-        f.setBold(true);
-        f.setPointSizeF(StyleHelper::sidebarFontSize());
-        d->resultLabel->setFont(f);
-        d->resultLabel->setPalette(StyleHelper::sidebarFontPalette(d->resultLabel->palette()));
-        d->resultLabel->setText(tr("%1 found").arg(d->searchResultWindow()->numberOfResults()));
-        return d->resultLabel;
-    }
-    \endcode
-     
-    \section2 Step 3.Testing the plugin.       
-    Now its the time to test the plugin. For searching we use our "HeaderFilter" and the searched result is shown in the
-    "Search Results" window and the progress bar pops up while searching.
-    
-    \inlineimage qtc-searchprogress-11.png
-  
-*/