AppleWin/source/frontends/qapple/emulator.cpp

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#include "emulator.h"
#include <QMdiSubWindow>
#include <cmath>
Emulator::Emulator(QWidget *parent) :
QFrame(parent)
{
setupUi(this);
}
void Emulator::redrawScreen()
{
video->update();
}
void Emulator::setVideoSize(QMdiSubWindow * window, const QSize & size)
{
window->showNormal();
// assume the extra space between widget and border is not affected by a resize
const QSize gap = window->size() - video->size();
window->resize(size + gap);
}
void Emulator::setZoom(QMdiSubWindow * window, const int x)
{
const QSize target = video->minimumSize() * x;
setVideoSize(window, target);
}
void Emulator::set43AspectRatio(QMdiSubWindow * window)
{
// keep the same surface with 4:3 aspect ratio
const QSize & size = video->size();
const double area = size.height() * size.width();
const int numerator = 35;
const int denominator = 24;
const int x = sqrt(area / (numerator * denominator));
const QSize target(numerator * x, denominator * x);
setVideoSize(window, target);
}