[installation] Init with inital config for global

include/gempa/gui/spectrogram/image.h

@@ -0,0 +1,70 @@
+/***************************************************************************
+ * Copyright (C) 2011 by gempa GmbH
+ *
+ * Author: Jan Becker
+ * Email: jabe@gempa.de
+ ***************************************************************************/
+
+
+#ifndef __GEMPA_SPECTROGRAM_IMAGE_H__
+#define __GEMPA_SPECTROGRAM_IMAGE_H__
+
+
+#include <seiscomp/gui/core/gradient.h>
+#include <gempa/utils/lut.h>
+#include <gempa/gui/api.h>
+
+#include <QImage>
+
+
+namespace Gempa {
+namespace Gui {
+
+
+template <typename T> class Spectrogram;
+
+typedef Gempa::Utils::LUT<double,QRgb> ColorLUT;
+
+template <int N>
+class StaticColorLUT : public Gempa::Utils::StaticLUT<double,QRgb,N> {
+	public:
+		StaticColorLUT() {}
+		StaticColorLUT(const Seiscomp::Gui::Gradient &gradient) {
+			generateFrom(gradient);
+		}
+
+	public:
+		bool setRangeFrom(const Seiscomp::Gui::Gradient &gradient) {
+			if ( gradient.empty() ) return false;
+
+			double lower =  gradient.begin().key();
+			double upper = (--gradient.end()).key();
+			Gempa::Utils::StaticLUT<double,QRgb,N>::setRange(lower, upper);
+
+			return true;
+		}
+
+		void generateFrom(const Seiscomp::Gui::Gradient &gradient) {
+			if ( !setRangeFrom(gradient) ) return;
+			for ( int i = 0; i < N; ++i )
+				Utils::StaticLUT<double,QRgb,N>::_staticLUT[i] =
+					gradient.colorAt(Utils::StaticLUT<double,QRgb,N>::indexToKey(i)).rgba();
+		}
+};
+
+
+template <typename T>
+bool generateImageCW(QImage &img, const Spectrogram<T> *spec, const ColorLUT *lut,
+                     int width, int height, int columnOffset = 0,
+                     int columnWidth = -1);
+
+template <typename T>
+bool generateImagePPS(QImage &img, const Spectrogram<T> *spec, const ColorLUT *lut,
+                      int width, int height, int columnOffset = 0,
+                      double pixelPerSecond = 1.0);
+
+
+}
+}
+
+#endif