From 4ab6e8aca5343bc13956fb59e02593dedcc2116b 2017-11-24 10:07:06
From: Alexandre Leroux <aleroux@itlink.fr>
Date: 2017-11-24 10:07:06
Subject: [PATCH] Handles double click on color scale

The action opens the color scale editor

---

diff --git a/gui/include/Visualization/VisualizationGraphRenderingDelegate.h b/gui/include/Visualization/VisualizationGraphRenderingDelegate.h
index b17a1ec..f8b54d3 100644
--- a/gui/include/Visualization/VisualizationGraphRenderingDelegate.h
+++ b/gui/include/Visualization/VisualizationGraphRenderingDelegate.h
@@ -18,6 +18,7 @@ public:
     /// @remarks the graph widget must exist throughout the life cycle of the delegate
     explicit VisualizationGraphRenderingDelegate(VisualizationGraphWidget &graphWidget);
 
+    void onMouseDoubleClick(QMouseEvent *event) noexcept;
     void onMouseMove(QMouseEvent *event) noexcept;
 
     /// Sets properties of the plot's axes from the data series passed as parameter
diff --git a/gui/include/Visualization/VisualizationGraphWidget.h b/gui/include/Visualization/VisualizationGraphWidget.h
index 19a4cc3..be9f91b 100644
--- a/gui/include/Visualization/VisualizationGraphWidget.h
+++ b/gui/include/Visualization/VisualizationGraphWidget.h
@@ -104,6 +104,8 @@ private slots:
     /// Rescale the X axe to range parameter
     void onRangeChanged(const QCPRange &t1, const QCPRange &t2);
 
+    /// Slot called when a mouse double click was made
+    void onMouseDoubleClick(QMouseEvent *event) noexcept;
     /// Slot called when a mouse move was made
     void onMouseMove(QMouseEvent *event) noexcept;
     /// Slot called when a mouse wheel was made, to perform some processing before the zoom is done
diff --git a/gui/src/Visualization/VisualizationGraphRenderingDelegate.cpp b/gui/src/Visualization/VisualizationGraphRenderingDelegate.cpp
index 735a107..6bf0c1e 100644
--- a/gui/src/Visualization/VisualizationGraphRenderingDelegate.cpp
+++ b/gui/src/Visualization/VisualizationGraphRenderingDelegate.cpp
@@ -1,5 +1,6 @@
 #include "Visualization/VisualizationGraphRenderingDelegate.h"
 #include "Visualization/AxisRenderingUtils.h"
+#include "Visualization/ColorScaleEditor.h"
 #include "Visualization/PlottablesRenderingUtils.h"
 #include "Visualization/VisualizationGraphWidget.h"
 #include "Visualization/qcustomplot.h"
@@ -172,6 +173,15 @@ VisualizationGraphRenderingDelegate::VisualizationGraphRenderingDelegate(
 {
 }
 
+void VisualizationGraphRenderingDelegate::onMouseDoubleClick(QMouseEvent *event) noexcept
+{
+    // Opens color scale editor if color scale is double clicked
+    if (auto colorScale
+        = dynamic_cast<QCPColorScale *>(impl->m_Plot.layoutElementAt(event->pos()))) {
+        ColorScaleEditor{}.exec();
+    }
+}
+
 void VisualizationGraphRenderingDelegate::onMouseMove(QMouseEvent *event) noexcept
 {
     // Cancels pending refresh
diff --git a/gui/src/Visualization/VisualizationGraphWidget.cpp b/gui/src/Visualization/VisualizationGraphWidget.cpp
index 532c09a..95f2cf0 100644
--- a/gui/src/Visualization/VisualizationGraphWidget.cpp
+++ b/gui/src/Visualization/VisualizationGraphWidget.cpp
@@ -141,6 +141,8 @@ VisualizationGraphWidget::VisualizationGraphWidget(const QString &name, QWidget 
             &VisualizationGraphWidget::onMouseRelease);
     connect(ui->widget, &QCustomPlot::mouseMove, this, &VisualizationGraphWidget::onMouseMove);
     connect(ui->widget, &QCustomPlot::mouseWheel, this, &VisualizationGraphWidget::onMouseWheel);
+    connect(ui->widget, &QCustomPlot::mouseDoubleClick, this,
+            &VisualizationGraphWidget::onMouseDoubleClick);
     connect(ui->widget->xAxis, static_cast<void (QCPAxis::*)(const QCPRange &, const QCPRange &)>(
                                    &QCPAxis::rangeChanged),
             this, &VisualizationGraphWidget::onRangeChanged, Qt::DirectConnection);
@@ -476,6 +478,11 @@ void VisualizationGraphWidget::onRangeChanged(const QCPRange &t1, const QCPRange
     }
 }
 
+void VisualizationGraphWidget::onMouseDoubleClick(QMouseEvent *event) noexcept
+{
+    impl->m_RenderingDelegate->onMouseDoubleClick(event);
+}
+
 void VisualizationGraphWidget::onMouseMove(QMouseEvent *event) noexcept
 {
     // Handles plot rendering when mouse is moving