Initial commit.

src/analyzer/blockanalyzer.h

@@ -0,0 +1,65 @@
+// Maintainer: Max Howell <mac.howell@methylblue.com>, (C) 2003-5
+// Copyright:  See COPYING file that comes with this distribution
+//
+
+#ifndef BLOCKANALYZER_H
+#define BLOCKANALYZER_H
+
+#include "analyzerbase.h"
+#include <qcolor.h>
+
+class QResizeEvent;
+class QMouseEvent;
+class QPalette;
+
+/**
+ * @author Max Howell
+ */
+
+class BlockAnalyzer : public Analyzer::Base {
+  Q_OBJECT
+ public:
+  Q_INVOKABLE BlockAnalyzer(QWidget*);
+  ~BlockAnalyzer();
+
+  static const uint HEIGHT;
+  static const uint WIDTH;
+  static const uint MIN_ROWS;
+  static const uint MIN_COLUMNS;
+  static const uint MAX_COLUMNS;
+  static const uint FADE_SIZE;
+
+  static const char *kName;
+
+ protected:
+  virtual void transform(Analyzer::Scope&);
+  virtual void analyze(QPainter &p, const Analyzer::Scope&, bool new_frame);
+  virtual void resizeEvent(QResizeEvent*);
+  virtual void paletteChange(const QPalette&);
+  virtual void framerateChanged();
+
+  void drawBackground();
+  void determineStep();
+
+ private:
+  QPixmap* bar() { return &m_barPixmap; }
+
+  uint m_columns, m_rows;  // number of rows and columns of blocks
+  uint m_y;                // y-offset from top of widget
+  QPixmap m_barPixmap;
+  QPixmap m_topBarPixmap;
+  QPixmap m_background;
+  QPixmap canvas_;
+  Analyzer::Scope m_scope;     // so we don't create a vector every frame
+  std::vector<float> m_store;  // current bar heights
+  std::vector<float> m_yscale;
+
+  // FIXME why can't I namespace these? c++ issue?
+  std::vector<QPixmap> m_fade_bars;
+  std::vector<uint> m_fade_pos;
+  std::vector<int> m_fade_intensity;
+
+  float m_step;  // rows to fall per frame
+};
+
+#endif