From df893dde814fbeb9f09f9ef0693a6cd1af2d1fcf Mon Sep 17 00:00:00 2001
From: HomeWorld <homeworld@gmail.com>
Date: Sat, 4 Apr 2015 16:13:48 +0300
Subject: [PATCH 1/2] UI: Add SliderAbsoluteSetStyle class

When this class is used in conjunction with a QSlider control, allows
direct setting of the slider handle position when clicking in an area
other than the slider handle.  The default QSlider handle behavior is to
step towards clicked position.
---
 obs/CMakeLists.txt               |  2 ++
 obs/slider-absoluteset-style.cpp | 19 +++++++++++++++++++
 obs/slider-absoluteset-style.hpp | 12 ++++++++++++
 3 files changed, 33 insertions(+)
 create mode 100644 obs/slider-absoluteset-style.cpp
 create mode 100644 obs/slider-absoluteset-style.hpp

diff --git a/obs/CMakeLists.txt b/obs/CMakeLists.txt
index dd36d0b1c..e96625e49 100644
--- a/obs/CMakeLists.txt
+++ b/obs/CMakeLists.txt
@@ -114,6 +114,7 @@ set(obs_SOURCES
 	visibility-checkbox.cpp
 	vertical-scroll-area.cpp
 	visibility-item-widget.cpp
+	slider-absoluteset-style.cpp
 	source-list-widget.cpp
 	crash-report.cpp
 	qt-wrappers.cpp)
@@ -148,6 +149,7 @@ set(obs_HEADERS
 	visibility-checkbox.hpp
 	vertical-scroll-area.hpp
 	visibility-item-widget.hpp
+	slider-absoluteset-style.hpp
 	source-list-widget.hpp
 	qt-display.hpp
 	crash-report.hpp
diff --git a/obs/slider-absoluteset-style.cpp b/obs/slider-absoluteset-style.cpp
new file mode 100644
index 000000000..064f89a10
--- /dev/null
+++ b/obs/slider-absoluteset-style.cpp
@@ -0,0 +1,19 @@
+#include "slider-absoluteset-style.hpp"
+
+SliderAbsoluteSetStyle::SliderAbsoluteSetStyle(const QString& baseStyle)
+	:QProxyStyle(baseStyle)
+{
+}
+SliderAbsoluteSetStyle::SliderAbsoluteSetStyle(QStyle* baseStyle)
+	:QProxyStyle(baseStyle)
+{
+}
+
+int SliderAbsoluteSetStyle::styleHint(QStyle::StyleHint hint,
+	const QStyleOption* option = 0, const QWidget* widget = 0,
+	QStyleHintReturn* returnData = 0) const
+{
+	if(hint == QStyle::SH_Slider_AbsoluteSetButtons)
+		return (Qt::LeftButton | Qt::MidButton);
+	return QProxyStyle::styleHint(hint, option, widget, returnData);
+}
diff --git a/obs/slider-absoluteset-style.hpp b/obs/slider-absoluteset-style.hpp
new file mode 100644
index 000000000..a94ebebdd
--- /dev/null
+++ b/obs/slider-absoluteset-style.hpp
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <QProxyStyle>
+
+class SliderAbsoluteSetStyle : public QProxyStyle
+{
+public:
+	SliderAbsoluteSetStyle(const QString& baseStyle);
+	SliderAbsoluteSetStyle(QStyle* baseStyle);
+	int styleHint(QStyle::StyleHint hint, const QStyleOption* option,
+		const QWidget* widget, QStyleHintReturn* returnData) const;
+};

From 8ce623165a9f4eb8f4692f00404b53e342b14a66 Mon Sep 17 00:00:00 2001
From: HomeWorld <homeworld@gmail.com>
Date: Sat, 4 Apr 2015 16:19:22 +0300
Subject: [PATCH 2/2] UI: Change Volume Control volume slider behavior

Replaced default volume slider style with SliderAbsoluteSetStyle.
---
 obs/volume-control.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/obs/volume-control.cpp b/obs/volume-control.cpp
index 2dab2bb5a..2777b2d06 100644
--- a/obs/volume-control.cpp
+++ b/obs/volume-control.cpp
@@ -1,6 +1,7 @@
 #include "volume-control.hpp"
 #include "qt-wrappers.hpp"
 #include "mute-checkbox.hpp"
+#include "slider-absoluteset-style.hpp"
 #include <util/platform.h>
 #include <QHBoxLayout>
 #include <QVBoxLayout>
@@ -161,6 +162,8 @@ VolControl::VolControl(OBSSource source_)
 	obs_fader_attach_source(obs_fader, source);
 	obs_volmeter_attach_source(obs_volmeter, source);
 
+	slider->setStyle(new SliderAbsoluteSetStyle(slider->style()));
+
 	/* Call volume changed once to init the slider position and label */
 	VolumeChanged();
 }