CLASSE GRAPH: GESTION DES GRAPHIQUES DANS LES APPLICATIONS WIN32

//**************************************************************************************
//Vincent Morard
//Graph : Classe pour la gestion des graphiques dans une application Win32 
//23/05/2009
//**************************************************************************************
#include <windows.h>
#include <math.h>
#include "Plot.h"
HINSTANCE hInst;


LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	static int cx,cy;
	static Plot *P1,*P2,*P3;
	switch (message)
	{
	case WM_CREATE:
		double X[1000],Y[1000],Y2[1000],Y3[1000],Y4[1000],Y5[1000],Y6[1000],Y7[1000];

		Plot::Initialize(hInst);
		P1 = new Plot();
		P2 = new Plot();
		P3 = new Plot();
		
		P1->CreatePlot(0,WS_CHILD|WS_VISIBLE,20,20,100,200,hwnd);
		P2->CreatePlot(0,WS_CHILD|WS_VISIBLE|WS_DLGFRAME,300,20,50,200,hwnd);
		P3->CreatePlot(0,WS_CHILD|WS_VISIBLE,20,20,100,200,hwnd);
		
		//Couleur des graphs
		P1->SetBkColor(RGB(112,156,227));
		P1->SetGraphColor(RGB(204,219,244));

		P2->SetBkColor(RGB(95,195,34));
		P2->SetGraphColor(RGB(219,251,196));

		P3->SetBkColor(RGB(193,56,41));
		P3->SetGraphColor(RGB(251,218,196));

		//Création des courbes
		srand(GetTickCount());
		X[0]=0;Y[0]=0;Y2[0]=0;Y3[0]=0;Y4[0]=0,Y5[0]=0,Y6[0]=0,Y7[0]=0;

		for(int i=1;i<1000;i++){
			X[i]=i;
			Y[i]=Y[i-1]+(rand()%2 == 0 ? -1:1);
			Y2[i]=20*sin((double)i/20);
			Y3[i]=(i/30-2)*10;
			Y4[i]=(sin((double)i/4)*sqrt((double)i));
			Y5[i]=(sin((double)i/4)*sqrt((double)i*3));
			Y6[i]=(sin((double)i/4)*sqrt((double)i*6));
			Y7[i]=(sin((double)i/4)*sqrt((double)i*9));
		}

		//Ajout des courbes dans les graph
		P1->Add(X,Y,100  ,RGB(0,200,200) ,PLOT_TYPE_CROSS_AND_LINE);

		P2->Add(X,Y,1000 ,RGB(200,0,0)   ,PLOT_TYPE_LINE);
		P2->Add(X,Y2,1000,RGB(0,200,0)   ,PLOT_TYPE_CROSS_AND_LINE);
		P2->Add(X,Y3,300 ,RGB(255,128,64),PLOT_TYPE_CROSS);
		
		P3->Add(X,Y4,100 ,RGB(100,0,0)     ,PLOT_TYPE_CROSS);
		P3->Add(X,Y5,100 ,RGB(200,0,0)   ,PLOT_TYPE_CROSS);
		P3->Add(X,Y6,100 ,RGB(255,126,0)   ,PLOT_TYPE_CROSS);
		P3->Add(X,Y7,100 ,RGB(255,189,20)   ,PLOT_TYPE_CROSS);
		

		P1->AddTitle("Y[i-1] + (rand()%2 == 0 ? -1:1)");

		P3->AddTitle("Sinus pondéré avec une racine carré");
		P3->AddLegend();
		P3->AddLegend(0,"Sin{w/4} * sqrt(w)");
		P3->AddLegend(1,"Sin{w/4} * sqrt(w*3)");
		P3->AddLegend(2,"Sin{w/4} * sqrt(w*6)");
		P3->AddLegend(3,"Sin{w/4} * sqrt(w*9)");
		return 0 ;


	case WM_SIZE:
		cx = LOWORD (lParam) ;
		cy = HIWORD (lParam) ;
		MoveWindow(P1->GetHWND(),20,20,cx/2-20,cy/2-20,TRUE);
		MoveWindow(P2->GetHWND(),cx/2+20,20,cx/2-40,cy/2-20,TRUE);
		MoveWindow(P3->GetHWND(),20,cy/2+20,cx-40,cy/2-20,TRUE);
		break;

	case WM_DESTROY:
		PostQuitMessage (0) ;
		return 0 ;
	}
	return DefWindowProc (hwnd, message, wParam, lParam) ;
}


int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE ,PSTR szCmdLine, int iCmdShow)
{
	static char szAppName[] = "Graph" ;
	HWND         hwnd ;
	MSG          msg ;
	WNDCLASS     wndclass ;

	hInst = hInstance;

	wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
	wndclass.lpfnWndProc   = WndProc ;
	wndclass.cbClsExtra    = 0 ;
	wndclass.cbWndExtra    = 0 ;
	wndclass.hInstance     = hInstance ;
	wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
	wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
	wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
	wndclass.lpszMenuName  = NULL ;
	wndclass.lpszClassName = szAppName ;

	if (!RegisterClass (&wndclass)){
		MessageBox (NULL, "This program requires Windows NT!",szAppName, MB_ICONERROR) ;
		return 0 ;
	}

	hwnd = CreateWindow (szAppName, "Graphiques",
		WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN,
		CW_USEDEFAULT, CW_USEDEFAULT,
		CW_USEDEFAULT, CW_USEDEFAULT,
		NULL, NULL, hInstance, NULL) ;

	ShowWindow (hwnd, iCmdShow) ;
	UpdateWindow (hwnd) ;

	while (GetMessage (&msg, NULL, 0, 0))
	{
		TranslateMessage (&msg) ;
		DispatchMessage (&msg) ;
	}
	return msg.wParam ;
}