From 72fdbc276a8901cbe1c2a12d1d8ba41494bfc790 Mon Sep 17 00:00:00 2001
From: Carsten Niehaus <cniehaus@gmx.de>
Date: Wed, 13 Jul 2005 17:15:42 +0000
Subject: [PATCH] improve the spectrumdialog

svn path=/trunk/KDE/kdeedu/kalzium/src/spectrum.h; revision=434309
---
 kalzium/src/spectrum.cpp | 24 +++++++++++++++++++++---
 kalzium/src/spectrum.h   | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/kalzium/src/spectrum.cpp b/kalzium/src/spectrum.cpp
index abb3669..54850b8 100644
--- a/kalzium/src/spectrum.cpp
+++ b/kalzium/src/spectrum.cpp
@@ -19,9 +19,11 @@
  ***************************************************************************/
 #include "spectrum.h"
 
-#include <klocale.h>
+#include <qlayout.h>
+
 #include <kglobal.h>
 #include <kstandarddirs.h>
+#include <klocale.h>
 
 #include <math.h>
 
@@ -105,9 +107,9 @@ void SpectrumWidget::drawLines( QPainter *p )
 
 void SpectrumWidget::wavelengthToRGB( double wavelength, int& r, int& g, int& b )
 {
-	double blue, green, red, factor;
+	double blue = 0.0, green = 0.0, red = 0.0, factor = 0.0;
 
-	double wavelength_ = floor( wavelength );
+	int wavelength_ = floor( wavelength );
 
 	kdDebug() << wavelength << " :: " << wavelength_ << endl;
 
@@ -191,4 +193,20 @@ QColor SpectrumWidget::linecolor( double spectrum )
 	return c;
 }
 
+SpectrumView::SpectrumView( QWidget *parent, const char* name )
+	: QWidget( parent, name )
+{
+	QVBoxLayout *spectrumLayout = new QVBoxLayout( this );
+	m_spectrum = new SpectrumWidget( this, "spectrum" );
+	spectrumLayout->addWidget( m_spectrum );
+
+	QHBoxLayout *hbox = new QHBoxLayout( this );
+	m_spinbox_left = new QSpinBox( 380, 779, 1, this );
+	m_spinbox_right = new QSpinBox( 381, 780, 1, this );
+	hbox->addWidget( m_spinbox_left );
+	hbox->addWidget( m_spinbox_right );
+
+	spectrumLayout->addLayout( hbox );
+}
+
 #include "spectrum.moc"
diff --git a/kalzium/src/spectrum.h b/kalzium/src/spectrum.h
index 2048a72..7bdcdd0 100644
--- a/kalzium/src/spectrum.h
+++ b/kalzium/src/spectrum.h
@@ -26,6 +26,7 @@
 #include <qimage.h>
 #include <qstring.h>
 #include <qvaluelist.h>
+#include <qspinbox.h>
 
 #include <kimageeffect.h>
 #include <kdebug.h>
@@ -45,6 +46,19 @@ class SpectrumWidget : public QWidget
 		void setSpectra( QValueList<double> l ){
 			m_spectra = l;
 		}
+
+		/**
+		 * This limits the width of the spectrum in terms of
+		 * wavelength. For example you can set it to only
+		 * show the area between 500 and 550 nm
+		 *
+		 * @param left the left border
+		 * @param right the right border
+		 */
+		void setBorders( double left, double right ){
+			startValue = left;
+			endValue = right;
+		}
 	
 	private:
 		QValueList<double> m_spectra;
@@ -93,5 +107,23 @@ class SpectrumWidget : public QWidget
 	protected:
 		virtual void paintEvent( QPaintEvent *e );
 };
+
+class SpectrumView : public QWidget
+{
+	Q_OBJECT
+
+	public: 
+		SpectrumView( QWidget* parent, const char* name );
+
+		void setSpectra( QValueList<double> l ){
+			m_spectrum->setSpectra( l );
+		}
+
+	private:
+		SpectrumWidget *m_spectrum;
+
+		QSpinBox *m_spinbox_left, *m_spinbox_right;
+};
+
 #endif // SPECTRUM_H
 
-- 
2.47.3