split into multiple files and changed binary name

src/display_window.cpp

@@ -0,0 +1,28 @@
+
+#include"display_window.h"
+
+DisplayWindow::DisplayWindow(QWidget *parent) : QDialog(parent) {
+    createControls();
+    setGeometry(950, 200, 640, 480);
+    setWindowFlags(Qt::Window | Qt::WindowTitleHint | Qt::CustomizeWindowHint | Qt::WindowMinimizeButtonHint | Qt::WindowMaximizeButtonHint);
+    setWindowTitle(tr("Acid Cam v2 - Display Window"));
+    hide();
+}
+void DisplayWindow::createControls() {
+    img_label = new QLabel(this);
+    img_label->setGeometry(0,0,640, 480);
+}
+void DisplayWindow::displayImage(const QImage &img) {
+    QRect src(QPoint(0, 0), size());
+    QPixmap p = QPixmap::fromImage(img).scaled(size(),Qt::KeepAspectRatio, Qt::FastTransformation);
+    QRect dst(QPoint(0,0),p.size());
+    dst.moveCenter(src.center());
+    img_label->setGeometry(dst);
+    img_label->setPixmap(p);
+}
+
+
+void DisplayWindow::paintEvent(QPaintEvent *) {
+    QPainter painter(this);
+    painter.fillRect(QRect(QPoint(0, 0), size()), QColor(0,0,0));
+}