Hello world,

i use QtCreator and Qwt, i try to plot in real time 6 curve but i not a master in programmation and it's very difficult for me...

can you help me to:
1°) place my curve correctly
2°) with the good size

i do a project to place 6curve and 4button on a windows, the result is nice (http://imageshack.us/photo/my-images/851/myplots.jpg/) but i want to increase the size of my plot and have a good arrangement
==> the plots have to take the total windows (except button emplacement)

How i have to modify this programm to have bigger plots with a good arrangement ?
main.cpp
Qt Code: 
  1. #include <QApplication>
  2. #include "MyMainWindow.h"
  3. #include <QGridLayout> 
  4. int main(int argc, char *argv[]) 
  5. {
  6.     QApplication app(argc, argv); 
  7.     MyMainWindow fenetre; 
  8.     fenetre.setWindowFlags(Qt::Window); 
  9.  
  10.     QGridLayout *MyGridLayout = new QGridLayout;
  11.     MyGridLayout->addWidget(fenetre.get_WindowNumber1(),0,0,3,3);
  12.     MyGridLayout->addWidget(fenetre.get_WindowNumber2(),0,3,3,3);
  13.     MyGridLayout->addWidget(fenetre.get_WindowNumber3(),0,6,3,3);
  14.     MyGridLayout->addWidget(fenetre.get_WindowNumber4(),3,0,3,3);
  15.     MyGridLayout->addWidget(fenetre.get_WindowNumber5(),3,3,3,3);
  16.     MyGridLayout->addWidget(fenetre.get_WindowNumber6(),3,6,3,3);
  17.     MyGridLayout->addWidget(fenetre.get_BUTTONRun(),0,8);
  18.     MyGridLayout->addWidget(fenetre.get_BUTTONQuit(),0,9);
  19.     MyGridLayout->addWidget(fenetre.get_BUTTONAbout(),1,8);
  20.     MyGridLayout->addWidget(fenetre.get_BUTTONContact(),1,9);
  21.     fenetre.setLayout(MyGridLayout);
  22.     fenetre.show(); 
  23.     return app.exec(); 
  24. }
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MyMainWindow.h
Qt Code: 
  1. #ifndef MYMAINWINDOW_H
  2. #define MYMAINWINDOW_H
  3.  
  4. #include <QApplication>
  5. #include <QWidget>
  6. #include <QPushButton>
  7. #include <QMessageBox>
  8. #include <qwt_plot.h>
  9.  
  10. class MyMainWindow : public QWidget 
  11. {                                   
  12.     Q_OBJECT 
  13.  
  14.     public:
  15.     MyMainWindow(); 
  16.     ~MyMainWindow(); 
  17.     QPushButton* get_BUTTONRun();
  18.     QPushButton* get_BUTTONQuit();
  19.     QPushButton* get_BUTTONAbout();
  20.     QPushButton* get_BUTTONContact();
  21.     QWidget* get_WindowNumber1();
  22.     QWidget* get_WindowNumber2();
  23.     QWidget* get_WindowNumber3();
  24.     QWidget* get_WindowNumber4();
  25.     QWidget* get_WindowNumber5();
  26.     QWidget* get_WindowNumber6();
  27.  
  28.     private:
  29.     QPushButton *BUTTONRun; 
  30.     QPushButton *BUTTONQuit;
  31.     QPushButton *BUTTONAbout;
  32.     QPushButton *BUTTONContact;
  33.     QWidget *WindowNumber1;
  34.     QWidget *WindowNumber2;
  35.     QWidget *WindowNumber3;
  36.     QWidget *WindowNumber4;
  37.     QWidget *WindowNumber5;
  38.     QWidget *WindowNumber6;
  39.     QwtPlot *myPlot1;
  40.     QwtPlot *myPlot2;
  41.     QwtPlot *myPlot3;
  42.     QwtPlot *myPlot4;
  43.     QwtPlot *myPlot5;
  44.     QwtPlot *myPlot6;
  45. };
  46. #endif // MYMAINWINDOW_H
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MyMainWindow.cpp
Qt Code: 
  1. #include "MyMainWindow.h"
  2.  
  3. MyMainWindow::MyMainWindow() : QWidget()
  4. {
  5.     WindowNumber1= new QWidget(this);
  6.     WindowNumber2= new QWidget(this);
  7.     WindowNumber3= new QWidget(this);
  8.     WindowNumber4= new QWidget(this);
  9.     WindowNumber5= new QWidget(this);
  10.     WindowNumber6= new QWidget(this);
  11.     myPlot1=new QwtPlot(WindowNumber1);
  12.     myPlot2=new QwtPlot(WindowNumber2);
  13.     myPlot3=new QwtPlot(WindowNumber3);
  14.     myPlot4=new QwtPlot(WindowNumber4);
  15.     myPlot5=new QwtPlot(WindowNumber5);
  16.     myPlot6=new QwtPlot(WindowNumber6);
  17.  
  18. 	BUTTONRun = new QPushButton("RUN", this);
  19.     BUTTONQuit = new QPushButton("STOP", this);
  20.     BUTTONAbout = new QPushButton("About", this);
  21.     BUTTONContact = new QPushButton("Contact", this);
  22.  
  23.     QObject::connect(BUTTONQuit, SIGNAL(clicked()), qApp, SLOT(quit())); 
  24.     QObject::connect(BUTTONAbout, SIGNAL(clicked()), qApp, SLOT(aboutQt()));
  25.  
  26. }
  27. MyMainWindow::~MyMainWindow() 
  28. {
  29.  
  30. }
  31.  
  32. QPushButton* MyMainWindow::get_BUTTONRun()
  33. {
  34.     return BUTTONRun;
  35. }
  36.  
  37. QPushButton* MyMainWindow::get_BUTTONQuit()
  38. {
  39.     return BUTTONQuit;
  40. }
  41.  
  42. QPushButton* MyMainWindow::get_BUTTONAbout()
  43. {
  44.     return BUTTONAbout;
  45. }
  46.  
  47. QPushButton* MyMainWindow::get_BUTTONContact()
  48. {
  49.     return BUTTONContact;
  50. }
  51.  
  52. QWidget* MyMainWindow::get_WindowNumber1()
  53. {
  54.     return WindowNumber1;
  55. }
  56.  
  57. QWidget* MyMainWindow::get_WindowNumber2()
  58. {
  59.     return WindowNumber2;
  60. }
  61.  
  62. QWidget* MyMainWindow::get_WindowNumber3()
  63. {
  64.     return WindowNumber3;
  65. }
  66.  
  67. QWidget* MyMainWindow::get_WindowNumber4()
  68. {
  69.     return WindowNumber4;
  70. }
  71.  
  72. QWidget* MyMainWindow::get_WindowNumber5()
  73. {
  74.     return WindowNumber5;
  75. }
  76.  
  77. QWidget* MyMainWindow::get_WindowNumber6()
  78. {
  79.     return WindowNumber6;
  80. }
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