Reworked the way qml create sliders

Use the qml MVC to populate a ListView with components based on a template
VolumeSlider. Should now handle potential disconnections, volume changes
by third-party and also fix the issue where sliders are set to 0 at
startup.

Change-Id: I2961d5a1584a121c473ece253faa90a747c64445
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 54 insertions, 0 deletions

diff --git a/app/audiorole.cpp b/app/audiorole.cpp
new file mode 100644
index 0000000..5fad48f
--- /dev/null
+++ b/app/audiorole.cpp
@@ -0,0 +1,54 @@
+#include "audiorole.hpp"
+
+AudioRole::AudioRole(QObject* parent)
+	: QObject(parent)
+	, m_Name{""}
+	, m_Value{0}
+	, m_Updating{0}
+{
+}
+
+AudioRole::AudioRole(const QString& name, int value, QObject* parent)
+	: QObject(parent)
+	, m_Name{name}
+	, m_Value{value}
+	, m_Updating{0}
+{
+}
+
+QString AudioRole::Name() const
+{
+	return m_Name;
+}
+
+void AudioRole::setName(const QString& name)
+{
+	m_Name = name;
+	emit NameChanged();
+}
+
+int AudioRole::Value() const
+{
+	return m_Value;
+}
+
+void AudioRole::setValue(int value)
+{
+	if (m_Value != value)
+	{
+		m_Value = value;
+		if (m_Updating == 0)
+			emit ValueChanged();
+	}
+}
+
+void AudioRole::BeginUpdate()
+{
+	m_Updating++;
+}
+
+void AudioRole::EndUpdate()
+{
+	if (m_Updating > 0) m_Updating--;
+	//if (m_Updating == 0) emit ValueChanged();
+}