Properties.legacy.cpp

The Properties.legacy program is a legacy version of the Properties.cpp example.

Note

This is a legacy version of Properties.cpp only needed when working on a system with a non C++11 capable compiler (e.g. Visual Studio smaller then version 2013 or gcc smaller than version 4.8). For a detailed description please have a look on the modern version of this example. Even though the used C++ code is slightly different the general idea of the example is the same!

Source code

#ifdef _MSC_VER // is Microsoft compiler?
#   if _MSC_VER < 1300  // is 'old' VC 6 compiler?
#       pragma warning( disable : 4786 ) // 'identifier was truncated to '255' characters in the debug information'
#   endif // #if _MSC_VER < 1300
#endif // #ifdef _MSC_VER
#include <iostream>
#include <algorithm>
#include <map>
#include <apps/Common/exampleHelper.h>
#include <mvIMPACT_CPP/mvIMPACT_acquire.h>
#if !defined(linux) && !defined(__linux) && !defined(__linux__)
#   include <mvDisplay/Include/mvIMPACT_acquire_display.h>
using namespace mvIMPACT::acquire::display;
#else
typedef void* ImageDisplayWindow;
#endif // #if !defined(linux) && !defined(__linux) && !defined(__linux__)
 
using namespace std;
using namespace mvIMPACT::acquire;
 
typedef map<string, Property> StringPropMap;
 
//-----------------------------------------------------------------------------
void populatePropertyMap( StringPropMap& m, Component it, const string& currentPath = "" )
//-----------------------------------------------------------------------------
{
    while( it.isValid() )
    {
        string fullName( currentPath );
        if( fullName != "" )
        {
            fullName += "/";
        }
        fullName += it.name();
        if( it.isList() )
        {
            populatePropertyMap( m, it.firstChild(), fullName );
        }
        else if( it.isProp() )
        {
            m.insert( make_pair( fullName, Property( it ) ) );
        }
        ++it;
        // method object will be ignored...
    }
}
 
//-----------------------------------------------------------------------------
void singleCapture( Device* pDev, const FunctionInterface& fi, ImageDisplayWindow* pDisp, int maxWaitTime_ms )
//-----------------------------------------------------------------------------
{
    // send a request to the default request queue of the device and
    // wait for the result.
    fi.imageRequestSingle();
    // Start the acquisition manually if this was requested(this is to prepare the driver for data capture and tell the device to start streaming data)
    manuallyStartAcquisitionIfNeeded( pDev, fi );
    // wait for the image send to the default capture queue
    int requestNr = fi.imageRequestWaitFor( maxWaitTime_ms );
 
    // check if the image has been captured without any problems
    if( fi.isRequestNrValid( requestNr ) )
    {
        const Request* pRequest = fi.getRequest( requestNr );
        if( pRequest->isOK() )
        {
            // everything went well. Display the result...
#if !defined(linux) && !defined(__linux) && !defined(__linux__)
            pDisp->GetImageDisplay().SetImage( pRequest );
            pDisp->GetImageDisplay().Update();
#else
            cout << "Image captured(" << pRequest->imageWidth.read() << "x" << pRequest->imageHeight.read() << ")" << endl;
            // suppress compiler warnings
            ( void )pDisp;
#endif  // #if !defined(linux) && !defined(__linux) && !defined(__linux__)
        }
        else
        {
            cout << "A request has been returned, but the acquisition was not successful. Reason: " << pRequest->requestResult.readS() << endl;
        }
        // ... unlock the request again, so that the driver can use it again
        fi.imageRequestUnlock( requestNr );
    }
    else
    {
        cout << "The acquisition failed: " << ImpactAcquireException::getErrorCodeAsString( requestNr ) << endl;
    }
    manuallyStopAcquisitionIfNeeded( pDev, fi );
    // in any case clear the queue to have consistent behaviour the next time this function gets called
    // as otherwise an image not ready yet might be returned directly when this function gets called the next time
    fi.imageRequestReset( 0, 0 );
}
 
//-----------------------------------------------------------------------------
int main( int argc, char* argv[] )
//-----------------------------------------------------------------------------
{
    DeviceManager devMgr;
    Device* pDev = 0;
 
    string settingName;
    for( int i = 1; i < argc; i++ )
    {
        string arg( argv[i] );
        if( arg.find( "-s" ) == 0 )
        {
            pDev = devMgr.getDeviceBySerial( arg.substr( 2 ) );
        }
        else
        {
            // try to load this setting later on...
            settingName = string( arg );
        }
    }
 
    if( argc <= 1 )
    {
        cout << "Available command line parameters:" << endl
             << endl
             << "-s<serialNumber> to pre-select a certain device. If this device can be found no further user interaction is needed" << endl
             << "any other string will be interpreted as a name of a setting to load" << endl << endl;
    }
 
    if( !pDev )
    {
        // this will automatically set the interface layout etc. to the values from the branch above
        pDev = getDeviceFromUserInput( devMgr );
    }
 
    if( !pDev )
    {
        cout << "Could not obtain a valid pointer to a device. Unable to continue!"
             << "Press [ENTER] to end the application" << endl;
        cin.get();
        return 1;
    }
    else
    {
        cout << "Initialising device: " << pDev->serial.read() << ". This might take some time..." << endl;
    }
 
    try
    {
        pDev->open();
    }
    catch( const ImpactAcquireException& e )
    {
        // this e.g. might happen if the same device is already opened in another process...
        cout << "An error occurred while opening the device(error code: " << e.getErrorCode() << ")." << endl
             << "Press [ENTER] to end the application" << endl;
        cin.get();
        return 1;
    }
 
    // create a function interface to the device
    FunctionInterface fi( pDev );
 
    if( !settingName.empty() )
    {
        cout << "Trying to load setting " << settingName << "..." << endl;
        int result = fi.loadSetting( settingName );
        if( result != DMR_NO_ERROR )
        {
            cout << "loadSetting( \"" << settingName << "\" ); call failed: " << ImpactAcquireException::getErrorCodeAsString( result ) << endl;
        }
    }
 
#if !defined(linux) && !defined(__linux) && !defined(__linux__)
    // initialise a display window
    ImageDisplayWindow* pDisp = new ImageDisplayWindow( "mvIMPACT_acquire sample" );
#else
    ImageDisplayWindow* pDisp = 0;
#endif  // #if !defined(linux) && !defined(__linux) && !defined(__linux__)
 
    // obtain all the settings related properties available for this device
    // Only work with the 'Base' setting. For more information please refer to the manual (working with settings)
    StringPropMap propertyMap;
    DeviceComponentLocator locator( pDev, dltSetting, "Base" );
    populatePropertyMap( propertyMap, Component( locator.searchbase_id() ).firstChild() );
    try
    {
        // this category is not supported by every device, thus we can expect an exception if this feature is missing
        locator = DeviceComponentLocator( pDev, dltIOSubSystem );
        populatePropertyMap( propertyMap, Component( locator.searchbase_id() ).firstChild() );
    }
    catch( const ImpactAcquireException& ) {}
    locator = DeviceComponentLocator( pDev, dltRequest );
    populatePropertyMap( propertyMap, Component( locator.searchbase_id() ).firstChild() );
    locator = DeviceComponentLocator( pDev, dltSystemSettings );
    populatePropertyMap( propertyMap, Component( locator.searchbase_id() ).firstChild(), string( "SystemSettings" ) );
    locator = DeviceComponentLocator( pDev, dltInfo );
    populatePropertyMap( propertyMap, Component( locator.searchbase_id() ).firstChild(), string( "Info" ) );
    populatePropertyMap( propertyMap, Component( pDev->hDev() ).firstChild(), string( "Device" ) );
    string cmd;
    int timeout_ms = 500;
    bool boRun = true;
    while( boRun )
    {
        cout << "enter quit, snap, list, help, save or the name of the property you want to modify followed by [ENTER]: ";
        cin >> cmd;
 
        if( cmd == "snap" )
        {
            singleCapture( pDev, fi, pDisp, timeout_ms );
        }
        else if( cmd == "list" )
        {
            for_each( propertyMap.begin(), propertyMap.end(), DisplayProperty() );
        }
        else if( cmd == "help" )
        {
            cout << "quit: terminates the sample" << endl
                 << "snap: takes and displays one image with the current settings" << endl
                 << "list: displays all properties available for this device" << endl
                 << "help: displays this help text" << endl
                 << "timeout: set a new timeout(in ms) used as a max. timeout to wait for an image" << endl
                 << "the full name of a property must be specified" << endl;
        }
        else if( cmd == "quit" )
        {
            boRun = false;
            continue;
        }
        else if( cmd == "timeout" )
        {
            cout << "Enter the new timeout to be passed to the imageRequestWaitFor function: ";
            cin >> timeout_ms;
        }
        else if( cmd == "save" )
        {
            cout << "Saving global settings for the device " << pDev->serial.read() << endl;
            fi.saveSetting( pDev->serial.read(), sfNative, sGlobal );
        }
        else
        {
            StringPropMap::const_iterator it = propertyMap.find( cmd );
            if( it == propertyMap.end() )
            {
                cout << "Unknown command or property" << endl;
            }
            else
            {
                displayPropertyData( it->second );
                if( it->second.hasDict() )
                {
                    cout << "This function expects the string representation as input!" << endl;
                }
                modifyPropertyValue( it->second );
            }
        }
    }
 
#if !defined(linux) && !defined(__linux) && !defined(__linux__)
    // free resources
    delete pDisp;
#endif  // #if !defined(linux) && !defined(__linux) && !defined(__linux__)
    return 0;
}