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-rw-r--r--examples/datavisualization/texturesurface/highlightseries.cpp28
1 files changed, 26 insertions, 2 deletions
diff --git a/examples/datavisualization/texturesurface/highlightseries.cpp b/examples/datavisualization/texturesurface/highlightseries.cpp
index 7e5f7efb..13d1fba3 100644
--- a/examples/datavisualization/texturesurface/highlightseries.cpp
+++ b/examples/datavisualization/texturesurface/highlightseries.cpp
@@ -18,10 +18,16 @@
#include "highlightseries.h"
-#include <QDebug>
-
using namespace QtDataVisualization;
+//! [2]
+const float darkRedPos = 1.0f;
+const float redPos = 0.8f;
+const float yellowPos = 0.6f;
+const float greenPos = 0.4f;
+const float darkGreenPos = 0.2f;
+//! [2]
+
HighlightSeries::HighlightSeries()
: m_width(100),
m_height(100)
@@ -93,3 +99,21 @@ void HighlightSeries::handlePositionChange(const QPoint &position)
setVisible(true);
}
//! [1]
+
+//! [3]
+void HighlightSeries::handleGradientChange(float value)
+{
+ float ratio = m_minHeight / value;
+
+ QLinearGradient gr;
+ gr.setColorAt(0.0f, Qt::black);
+ gr.setColorAt(darkGreenPos * ratio, Qt::darkGreen);
+ gr.setColorAt(greenPos * ratio, Qt::green);
+ gr.setColorAt(yellowPos * ratio, Qt::yellow);
+ gr.setColorAt(redPos * ratio, Qt::red);
+ gr.setColorAt(darkRedPos * ratio, Qt::darkRed);
+
+ setBaseGradient(gr);
+ setColorStyle(Q3DTheme::ColorStyleRangeGradient);
+}
+//! [3]