void Click(int button, int state, int x, int y)
{
double posX, posY;
switch(button)
{
case 0:
posX = ((double)x / (double)graphWin.xWinFunc()) * (graphWin.xMax() - graphWin.xMin()) + graphWin.xMin();
posY = ((1 - (double)y / (double)graphWin.yWinFunc())) * (graphWin.yMax() - graphWin.yMin()) + graphWin.yMin();
dessinerCourbe(posX, posY);
break;
}
}
void Reshape(int w, int h)
{
if (h == 0) h = 1;
if (w == 0) w = 1;
glViewport(0, 0, w, h);
graphWin.setWinPixels( w, h );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
float xRatio = static_cast<float>(w)/static_cast<float>(graphWin.xWinFunc());
float yRatio = static_cast<float>(h)/static_cast<float>(graphWin.yWinFunc());
// Volume de clipping : (left, right, bottom, top, near, far)
glOrtho(graphWin.xMin()*xRatio, graphWin.xMax()*xRatio, graphWin.yMin()*yRatio, graphWin.yMax()*yRatio, -2.0f, 2.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}