first commit

project/fm_viewer/ui/rm_slider.cpp

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+#include "rm_slider.h"
+
+#include <QStyle>
+#include <QStyleOption>
+#include <QMouseEvent>
+#include <QDebug>
+#include <QPainter>
+#include <QStylePainter>
+#include "../rm_include.h"
+
+RMSlider::RMSlider(QWidget *parent):
+    QSlider(parent)
+{
+    setOrientation(Qt::Horizontal);
+    setFocusPolicy(Qt::NoFocus);        // 처리해도 mouse wheel 은 처리안됨
+}
+
+RMSlider::~RMSlider()
+{
+}
+
+
+inline int RMSlider::pick(const QPoint &pt) const
+{
+    return orientation() == Qt::Horizontal ? pt.x() : pt.y();
+}
+// Function copied from qslider.cpp and modified to make it compile
+int RMSlider::pixelPosToRangeValue(int pos) const
+{
+    QStyleOptionSlider opt;
+    initStyleOption(&opt);
+    QRect gr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, this);
+    QRect sr = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
+    int sliderMin, sliderMax, sliderLength;
+    if (orientation() == Qt::Horizontal) {
+        sliderLength = sr.width();
+        sliderMin = gr.x();
+        sliderMax = gr.right() - sliderLength + 1;
+    } else {
+        sliderLength = sr.height();
+        sliderMin = gr.y();
+        sliderMax = gr.bottom() - sliderLength + 1;
+    }
+    return QStyle::sliderValueFromPosition(minimum(), maximum(), pos - sliderMin,
+                                           sliderMax - sliderMin, opt.upsideDown);
+}
+// Based on code from qslider.cpp
+void RMSlider::mousePressEvent(QMouseEvent *e)
+{
+    //LOG_TEST;
+    //qInfo() << e;
+
+    //qDebug("pressed (%d, %d)", e->pos().x(), e->pos().y());
+    if (e->button() == Qt::LeftButton)
+    {
+        QStyleOptionSlider opt;
+        initStyleOption(&opt);
+        const QRect sliderRect = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
+        const QPoint center = sliderRect.center() - sliderRect.topLeft();
+        // to take half of the slider off for the setSliderPosition call we use the center - topLeft
+
+        // DRAG 처리
+        bool bKnob = sliderRect.contains(e->pos());
+        if (!bKnob)
+        {
+            e->accept();
+            int v = pixelPosToRangeValue(pick(e->pos() - center));
+            setSliderPosition(v);
+            setRepeatAction(SliderNoAction);
+
+            // KNOB 영역이 아닌 경우에도 이벤트 발생시키기 위해 처리
+            emit sliderPressed();
+        }
+        else
+        {
+            QSlider::mousePressEvent(e);
+        }
+
+        // KNOB 클릭과 아닌 경우 구분하기 위해 사용 (비디오 이동시 pause 처리 등)
+        emit sliderPressedWithKnob(bKnob);
+    }
+    else
+    {
+        QSlider::mousePressEvent(e);
+    }
+}
+
+void RMSlider::wheelEvent(QWheelEvent *event)
+{
+    Q_UNUSED(event);
+}
+void RMSlider::mouseReleaseEvent(QMouseEvent *e)
+{
+    if (e->button() == Qt::LeftButton)
+    {
+        emit mouseReleased();
+    }
+    QSlider::mouseReleaseEvent(e);
+}
+
+RMReleasedSlider::RMReleasedSlider(QWidget *parent) : RMSlider(parent)
+{
+
+}
+void RMReleasedSlider::mouseReleaseEvent(QMouseEvent *e)
+{
+    if (e->button() == Qt::LeftButton)
+    {
+        emit mouseReleased();
+    }
+    QSlider::mousePressEvent(e);
+}
+/*
+void RMReleasedSlider::paintEvent(QPaintEvent *pe)
+{
+    Q_UNUSED(pe);
+
+    QStylePainter p(this);
+    QStyleOptionSlider opt;
+    initStyleOption(&opt);
+
+    int interval = tickInterval();
+    if (interval == 0)
+    {
+        interval = pageStep();
+    }
+
+    if (tickPosition() != NoTicks && tickStrings.isEmpty() == false)
+    {
+        QFont font = p.font();
+        font.setPixelSize(12);
+        p.setFont(font);
+        QRect handle = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
+        for (int i = minimum(); i <= maximum(); i += interval)
+        {
+            int x = ceil((double)((double)((double)(i - this->minimum()) / (double)(this->maximum() - this->minimum())) * (double)(this->width() - handle.width()) + (double)(handle.width() / 2.0))) - 1;
+
+            p.setPen(QColor("#8F8F8F"));
+            int y = this->rect().top()+4;
+            p.drawLine(x, y, x, y + 10);
+
+            p.setPen(QColor("#FFFFFF"));
+            p.drawText(x-6,y+22,tickStrings[i]);
+        }
+    }
+
+    // draw the slider (this is basically copy/pasted from QSlider::paintEvent)
+    opt.subControls = QStyle::SC_SliderGroove | QStyle::SC_SliderHandle;
+    p.drawComplexControl(QStyle::CC_Slider, opt);
+
+// 실제 동작하지 않음  draw the slider handle
+//    opt.subControls = QStyle::SC_SliderHandle;
+//    p.drawComplexControl(QStyle::CC_Slider, opt);
+
+
+}
+*/