From fc75d5d2704812843f212cc8ae7bd3e60d2440d6 Mon Sep 17 00:00:00 2001
From: Marco Gittler <marco@gitma.de>
Date: Mon, 27 Sep 2010 20:28:10 +0000
Subject: [PATCH] audiosignal widget

svn path=/trunk/kdenlive/; revision=4945
---
 src/audiosignal.cpp | 49 +++++++++++++++++++++++++++++++++++++++++++++
 src/audiosignal.h   | 27 +++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 src/audiosignal.cpp
 create mode 100644 src/audiosignal.h

diff --git a/src/audiosignal.cpp b/src/audiosignal.cpp
new file mode 100644
index 00000000..f35db088
--- /dev/null
+++ b/src/audiosignal.cpp
@@ -0,0 +1,49 @@
+#include "audiosignal.h"
+
+#include <QVBoxLayout>
+#include <QLabel>
+#include <QPainter>
+#include <QDebug>
+#include <QList>
+
+
+AudioSignal::AudioSignal(QWidget *parent):QWidget(parent)
+{
+	//QVBoxLayout *vbox=new QVBoxLayout(this);
+	//label=new QLabel();
+	//vbox->addWidget(label);
+	setMaximumHeight(12);
+	col << Qt::green <<  Qt::green << Qt::green << Qt::green << Qt::green << Qt::green << Qt::green << Qt::green << Qt::green << Qt::green ;
+	col << Qt::yellow <<  Qt::yellow << Qt::yellow << Qt::yellow << Qt::yellow  ;
+	col << Qt::darkYellow << Qt::darkYellow << Qt::darkYellow;
+	col << Qt::red << Qt::red;
+}
+
+
+void AudioSignal::showAudio(QByteArray arr)
+{
+	channels=arr;
+	update();
+}
+void AudioSignal::paintEvent(QPaintEvent* e)
+{
+    QPainter p(this);
+    //p.begin();
+	//p.fillRect(0,0,(unsigned char)channels[0]*width()/255,height()/2,QBrush(Qt::SolidPattern));
+	//p.fillRect(0,height()/2,(unsigned char)channels[1]*width()/255,height()/2,QBrush(Qt::SolidPattern));
+	int numchan=channels.size();
+	for (int i=0;i<numchan;i++){
+		int maxx=(unsigned char)channels[i]*width()/255;
+		int xdelta=width()/20;
+		int y1=height()*i/numchan;
+		int _h=height()/numchan-1;
+		for (int x=0;x<20;x++){
+				if (maxx>0){
+				p.fillRect(x*xdelta,y1,maxx>xdelta?xdelta-1:maxx-1,_h,QBrush(col.at(x),Qt::SolidPattern));
+				maxx-=xdelta;
+				}
+		}
+	}
+    p.end();
+}
+#include "audiosignal.moc"
diff --git a/src/audiosignal.h b/src/audiosignal.h
new file mode 100644
index 00000000..d0ab44c2
--- /dev/null
+++ b/src/audiosignal.h
@@ -0,0 +1,27 @@
+#ifndef AUDIOSIGNAL_H
+#define AUDIOSIGNAL_H
+
+#include <QByteArray>
+#include <QList>
+#include <QColor>
+class QLabel;
+
+#include  <QWidget>
+class AudioSignal : public QWidget 
+{
+	Q_OBJECT
+	public:
+		AudioSignal (QWidget *parent=0);
+	private:
+		QLabel* label;
+		QByteArray channels;
+		QList<QColor> col;
+	protected:
+		void paintEvent(QPaintEvent* );
+	public slots:
+		void showAudio(QByteArray);
+
+
+};
+
+#endif
-- 
2.39.5