implemented fullscreen stretch modes

src/qt/qt_softwarerenderer.cpp

@@ -1,26 +1,19 @@
 #include "qt_softwarerenderer.hpp"
 
-extern "C" {
-#include <86box/86box.h>
-}
-#include <QPainter>
-
 SoftwareRenderer::SoftwareRenderer(QWidget *parent) : QWidget(parent) {}
 
 void SoftwareRenderer::paintEvent(QPaintEvent *event) {
     (void) event;
-
-    QPainter painter(this);
-    painter.setRenderHint(QPainter::SmoothPixmapTransform, video_filter_method > 0 ? true : false);
-    painter.drawImage(QRect(0, 0, width(), height()), image, QRect(sx, sy, sw, sh));
-    image = QImage();
+    onPaint(this);
 }
 
 void SoftwareRenderer::onBlit(const QImage& img, int x, int y, int w, int h) {
     image = img;
-    sx = x;
-    sy = y;
-    sw = w;
-    sh = h;
+    source.setRect(x, y, w, h);
     update();
 }
+
+void SoftwareRenderer::resizeEvent(QResizeEvent *event) {
+    onResize(width(), height());
+    QWidget::resizeEvent(event);
+}