Method interpolate

MiniZincIDE/codeeditor.cpp:587–597

}

QColor CodeEditor::interpolate(QColor start,QColor end,double ratio)
{
    //From https://stackoverflow.com/questions/3306786/get-intermediate-color-from-a-gradient
    int r = static_cast<int>(ratio*start.red() + (1-ratio)*end.red());
    int g = static_cast<int>(ratio*start.green() + (1-ratio)*end.green());
    int b = static_cast<int>(ratio*start.blue() + (1-ratio)*end.blue());
    int a = static_cast<int>(ratio*start.alpha() + (1-ratio)*end.alpha());
    QColor c = QColor::fromRgb(r,g,b);
    c.setAlpha(a); // Strangely there seems to be no clean way of creating a rgba color, fromRgba does not take 4 parameters as one would expect.
    return c;
}

QColor CodeEditor::heatColor(double ratio)
{