Files
86Box/src/qt/qt_renderercommon.cpp

108 lines
2.4 KiB
C++

#include "qt_renderercommon.hpp"
#include "qt_mainwindow.hpp"
#include <QPainter>
#include <QWidget>
#include <QEvent>
#include <QApplication>
#include <cmath>
extern "C" {
#include <86box/86box.h>
#include <86box/video.h>
}
RendererCommon::RendererCommon() = default;
extern MainWindow* main_window;
static void integer_scale(double *d, double *g) {
double ratio;
if (*d > *g) {
ratio = std::floor(*d / *g);
*d = *g * ratio;
} else {
ratio = std::ceil(*d / *g);
*d = *g / ratio;
}
}
void RendererCommon::onResize(int width, int height) {
if (video_fullscreen == 0) {
destination.setRect(0, 0, width, height);
return;
}
double dx, dy, dw, dh, gsr;
double hw = width;
double hh = height;
double gw = source.width();
double gh = source.height();
double hsr = hw / hh;
switch (video_fullscreen_scale) {
case FULLSCR_SCALE_INT:
gsr = gw / gh;
if (gsr <= hsr) {
dw = hh * gsr;
dh = hh;
} else {
dw = hw;
dh = hw / gsr;
}
integer_scale(&dw, &gw);
integer_scale(&dh, &gh);
dx = (hw - dw) / 2.0;
dy = (hh - dh) / 2.0;
destination.setRect(dx, dy, dw, dh);
break;
case FULLSCR_SCALE_43:
case FULLSCR_SCALE_KEEPRATIO:
if (video_fullscreen_scale == FULLSCR_SCALE_43) {
gsr = 4.0 / 3.0;
} else {
gsr = gw / gh;
}
if (gsr <= hsr) {
dw = hh * gsr;
dh = hh;
} else {
dw = hw;
dh = hw / gsr;
}
dx = (hw - dw) / 2.0;
dy = (hh - dh) / 2.0;
destination.setRect(dx, dy, dw, dh);
break;
case FULLSCR_SCALE_FULL:
default:
destination.setRect(0, 0, hw, hh);
break;
}
}
bool RendererCommon::eventDelegate(QEvent *event, bool& result)
{
switch (event->type())
{
default:
return false;
case QEvent::KeyPress:
case QEvent::KeyRelease:
result = QApplication::sendEvent(main_window, event);
return true;
case QEvent::MouseButtonPress:
case QEvent::MouseMove:
case QEvent::MouseButtonRelease:
case QEvent::Wheel:
case QEvent::Enter:
case QEvent::Leave:
result = QApplication::sendEvent(parentWidget, event);
return true;
}
return false;
}