first commit

project/fm_viewer/ui/rm_widget_zoom_pos.cpp

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+#include "rm_widget_zoom_pos.h"
+
+#include <QPainter>
+#include "../rm_include.h"
+#include "../core/rm_math.h"
+
+RMWidgetZoomPos::RMWidgetZoomPos(QWidget *parent) : QWidget(parent)
+{
+    _x = 0.25;
+    _y = 0.25;
+    _startX = 0.25;
+    _startY = 0.25;
+}
+#if (USE_ZOOM_WH_RATIO)
+void RMWidgetZoomPos::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event);
+
+    QPen pen(Qt::red);
+    _painter.begin(this);
+    _painter.setPen(pen);
+    _painter.setRenderHint(QPainter::Antialiasing, false);
+
+    // ROI 는 영상/화면 비율과 관계없으나 표시 영역은 관계가 있음.
+    // 사용할 수 있는 넓이 = height * WHR (width/height ratio)
+    int widthDiff = (size().width() - (int)(((double)size().height()) * _whr));
+    //QRect max = QRect(widthDiff,0,size.width()-widthDiff,size().height());
+
+    QSize s = QSize((size().width() - widthDiff)  / 2,size().height() / 2);
+
+    // ROI 로 계산한 영역
+    QRect box = QRect(_x * size().width() + (widthDiff / 2),_y * size().height(),s.width(),s.height());
+
+    if(box.right() >= (size().width() - (widthDiff / 2)))
+    {
+       box = QRect(box.x() -(widthDiff / 2),box.y(),box.width(),box.height());
+    }
+
+    // 비디오 영역도 처리
+    //box = QRectAspect(box,_whr);
+
+    _painter.drawRect(box);
+    _painter.end();
+}
+#else
+void RMWidgetZoomPos::paintEvent(QPaintEvent *event)
+{
+    Q_UNUSED(event);
+
+    QPen pen(Qt::red);
+    _painter.begin(this);
+    _painter.setPen(pen);
+    _painter.setRenderHint(QPainter::Antialiasing, false);
+    QSize s = size() / 2;
+    QRect box = QRect(_x * size().width(),_y * size().height(),s.width(),s.height());
+    _painter.drawRect(box);
+    _painter.end();
+}
+#endif // #if (USE_ZOOM_WH_RATIO)
+void RMWidgetZoomPos::setPos(float x, float y)
+{
+    //qInfo() << whr;
+    _x = MIN(MAX(_startX + x,0),0.5);
+    _y = MIN(MAX(_startY + y,0),0.5);
+    update();
+}