diff options
Diffstat (limited to 'gtk2_ardour/fft_graph.h')
-rw-r--r-- | gtk2_ardour/fft_graph.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/gtk2_ardour/fft_graph.h b/gtk2_ardour/fft_graph.h new file mode 100644 index 0000000000..80c78180a6 --- /dev/null +++ b/gtk2_ardour/fft_graph.h @@ -0,0 +1,90 @@ +/* + Copyright (C) 2006 Paul Davis + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#ifndef __ardour_fft_graph_h +#define __ardour_fft_graph_h + +#include <ardour/types.h> +#include <fftw3.h> + +#include <gtkmm/drawingarea.h> +#include <gtkmm/treemodel.h> +#include <gdkmm/color.h> + +#include <glibmm/refptr.h> + +#include <string> + +#include "fft_result.h" + +class AnalysisWindow; + +class FFTGraph : public Gtk::DrawingArea +{ + public: + + FFTGraph(int windowSize); + ~FFTGraph(); + + void set_analysis_window(AnalysisWindow *a_window); + + int windowSize() const { return _windowSize; } + void setWindowSize(int windowSize); + + void redraw(); + bool on_expose_event (GdkEventExpose* event); + + void on_size_request(Gtk::Requisition* requisition); + void on_size_allocate(Gtk::Allocation alloc); + FFTResult *prepareResult(Gdk::Color color, std::string trackname); + + private: + + void setWindowSize_internal(int windowSize); + + void draw_scales(Glib::RefPtr<Gdk::Window> window); + + static const int scaleWidth = 512; + static const int scaleHeight = 420; + + static const int h_margin = 20; + static const int v_margin = 20; + + int width; + int height; + + void analyze(float *window, float *composite); + int _windowSize; + int _dataSize; + + Glib::RefPtr<Pango::Layout> layout; + Glib::RefPtr<Gdk::GC> graph_gc; + AnalysisWindow *_a_window; + + fftwf_plan _plan; + + float *_out; + float *_in; + float *_hanning; + int *_logScale; + + friend class FFTResult; +}; + +#endif /* __ardour_fft_graph_h */ |