#2070 improvements (Patch #2178)

Let me first suggest to split #2070 into two independent parts

1. resize window not working. Apply resize on parent widget - and it works: window_qt.cpp Line: 1855

1void CvWindow::setViewportSize(QSize size)
2{
3    QWidget* view = myView->getWidget();
4    int dx = size.width();
5    int dy = size.height();
6    view->parentWidget()->resize(dx-7, dy);
7    myView->setSize(size);
8}

And now a little improvement: insert following function e.g. behind cv::moveWindow() in window.cpp :

 1void cv::adjustWindowPos( const string& winname, int xp, int xwp, int yp, int yhp )
 2{
 3   // Additional function for % setting of windows:
 4   // all values in % relative to screen resulution:
 5   #ifdef _WIN32
 6        int cx,cy;
 7        cx = GetSystemMetrics(SM_CXSCREEN);
 8        cy = GetSystemMetrics(SM_CYSCREEN);
 9        int    x = 0.01 * ( xp * cx );
10        int    y = 0.01 * ( yp * cy );
11        int neww = 0.01 * (xwp * cx );
12        int newh = 0.01 * (yhp * cy );
13        cvMoveWindow( winname.c_str(), x, y );
14        cvResizeWindow( winname.c_str(),neww, newh );
15   #else
16        cvAdjustWindowPosQt( winname.c_str(),  xp, xwp, yp,  yhp );
17   #endif
18}

Additionally modify WindowQt.cpp: in case of Linux we do not have GetSystemMetrics so let it do by Qt, but one more include is nesseary:

 1#include <QDesktopWidget>
 2
 3CV_IMPL void cvAdjustWindowPosQt( const char * name, int xp, int xwp, int yp, int yhp )
 4{
 5    int cx,cy;
 6    QDesktopWidget* pDeskWid = QApplication::desktop() ;
 7    QRect ScreenGeo = pDeskWid->screenGeometry();  // needs  #include <QDesktopWidget>
 8    cx = ScreenGeo.width();
 9    cy = ScreenGeo.height();
10    int    x = 0.01 * ( xp * cx );
11    int    y = 0.01 * ( yp * cy );
12    int neww = 0.01 * (xwp * cx );
13    int newh = 0.01 * (yhp * cy );
14    cvMoveWindow( name, x, y );
15    cvResizeWindow( name, neww, newh );   
16}

1. icons not visible (only Linux): It was possible to reproduce this bug for me using Ubuntu (it works well with Windows XP + Windows 7)
   

   1 vect_QActions[0] = new QAction(QIcon(":/left-icon"), "Panning left (CTRL+arrowLEFT)", this);
   

I just avoided to use QActions and the QIcon inside using QButton and other controls...

To avoid this bug I wrote some code to read the whole configuration of a button bar from a *.cfg

In this way you have a free order of several contol types ( all QT, so only QT New function in the moment)

I could contibute it, but some changes necessary in the window_QT.cpp code of:

//--------------------Google Code 2010 -- Yannick Verdie--------------------//

Is it welcome ?