[libcamera-devel] [PATCH 09/11] qcam: ControlFrame: Add GUI interaction to float controls

[Utkarsh Tiwari]

Add the float slider for the float controls to be able to control its
value. Also display the current values for the float controls.

Signed-off-by: Utkarsh Tiwari <utkarsh02t at gmail.com>
---
 src/qcam/settings/control_frame.cpp | 21 +++++++++++++++++++++
 src/qcam/settings/control_frame.h   |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/src/qcam/settings/control_frame.cpp b/src/qcam/settings/control_frame.cpp
index 3ab9fdb4..10dcd05a 100644
--- a/src/qcam/settings/control_frame.cpp
+++ b/src/qcam/settings/control_frame.cpp
@@ -16,6 +16,8 @@
 #include <QString>
 #include <QVBoxLayout>
 
+#include "slider.h"
+
 using namespace libcamera;
 
 ControlFrame::ControlFrame(const libcamera::ControlId *control,
@@ -79,6 +81,19 @@ QWidget *ControlFrame::controlInteraction(QWidget *parent)
 		HCheckBoxLayout->setMargin(0);
 		return containerWidget;
 	}
+	case ControlTypeFloat: {
+		floatSlider_ = new FloatSlider;
+		floatSlider_->setRange(controlInfo_.min().get<float>(),
+				       controlInfo_.max().get<float>());
+		floatSlider_->setValue(controlInfo_.def().get<float>());
+		floatSlider_->setOrientation(Qt::Orientation::Horizontal);
+
+		connect(floatSlider_, &FloatSlider::valueChanged,
+			this, &ControlFrame::notifyControlChange);
+
+		SliderLayout *fSliderLayout = new SliderLayout(floatSlider_, this);
+		return fSliderLayout;
+	}
 	default:
 		return (new QLabel("Currently Unavailable"));
 	}
@@ -114,6 +129,9 @@ void ControlFrame::setCurrentValue(const libcamera::ControlValue controlValue)
 		else
 			currentValue_->setText("False");
 		break;
+	case ControlTypeFloat:
+		currentValue_->setText(QString::number(controlValue.get<float>()));
+		break;
 	default:
 		break;
 	}
@@ -141,6 +159,9 @@ void ControlFrame::notifyControlChange()
 		else
 			controlValue.set<bool>(false);
 
+		break;
+	case ControlTypeFloat:
+		controlValue.set<float>(floatSlider_->value());
 		break;
 	default:
 		/* Nothing to emit so return */
diff --git a/src/qcam/settings/control_frame.h b/src/qcam/settings/control_frame.h
index 9c3b059b..e9e256aa 100644
--- a/src/qcam/settings/control_frame.h
+++ b/src/qcam/settings/control_frame.h
@@ -15,6 +15,8 @@
 #include <QString>
 #include <QWidget>
 
+#include "slider.h"
+
 class ControlFrame : public QFrame
 {
 	Q_OBJECT
@@ -44,6 +46,7 @@ private:
 
 	QCheckBox *controlCheckBox_;
 	QLabel *currentValue_;
+	FloatSlider *floatSlider_;
 
 	/* Helper Hunctions */
 	QString getDefaultValueQStr();
-- 
2.25.1