ptformat: Make PT import more resilient to bad user choices and display messages
[ardour.git] / gtk2_ardour / fft_graph.h
1 /*
2     Copyright (C) 2006 Paul Davis
3     Author: Sampo Savoleinen
4
5     This program is free software; you can redistribute it and/or modify
6     it under the terms of the GNU General Public License as published by
7     the Free Software Foundation; either version 2 of the License, or
8     (at your option) any later version.
9
10     This program is distributed in the hope that it will be useful,
11     but WITHOUT ANY WARRANTY; without even the implied warranty of
12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13     GNU General Public License for more details.
14
15     You should have received a copy of the GNU General Public License
16     along with this program; if not, write to the Free Software
17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18
19 */
20
21 #ifndef __ardour_fft_graph_h
22 #define __ardour_fft_graph_h
23
24 #include "ardour/types.h"
25 #include <fftw3.h>
26
27 #include <gtkmm/drawingarea.h>
28 #include <gtkmm/treemodel.h>
29 #include <gdkmm/color.h>
30
31 #include <glibmm/refptr.h>
32
33 #include <string>
34
35 #include "fft_result.h"
36
37 class AnalysisWindow;
38
39 class FFTGraph : public Gtk::DrawingArea
40 {
41         public:
42
43                 FFTGraph(int windowSize);
44                 ~FFTGraph();
45
46                 void set_analysis_window(AnalysisWindow *a_window);
47
48                 int windowSize() const { return _windowSize; }
49                 void setWindowSize(int windowSize);
50
51                 void redraw();
52                 bool on_expose_event (GdkEventExpose* event);
53
54                 void on_size_request(Gtk::Requisition* requisition);
55                 void on_size_allocate(Gtk::Allocation & alloc);
56                 FFTResult *prepareResult(Gdk::Color color, std::string trackname);
57
58                 void set_show_minmax     (bool v) { _show_minmax     = v; redraw(); }
59                 void set_show_normalized (bool v) { _show_normalized = v; redraw(); }
60
61         private:
62
63                 void update_size();
64
65                 void setWindowSize_internal(int windowSize);
66
67                 void draw_scales(Glib::RefPtr<Gdk::Window> window);
68
69                 static const int minScaleWidth = 512;
70                 static const int minScaleHeight = 420;
71
72                 int currentScaleWidth;
73                 int currentScaleHeight;
74
75                 static const int h_margin = 20;
76                 static const int v_margin = 20;
77                 Glib::RefPtr<Gdk::GC> graph_gc;
78
79                 int width;
80                 int height;
81
82                 int _windowSize;
83                 int _dataSize;
84
85                 Glib::RefPtr<Pango::Layout> layout;
86                 AnalysisWindow *_a_window;
87
88                 fftwf_plan _plan;
89
90                 float *_out;
91                 float *_in;
92                 float *_hanning;
93                 int *_logScale;
94
95                 bool _show_minmax;
96                 bool _show_normalized;
97
98         friend class FFTResult;
99 };
100
101 #endif /* __ardour_fft_graph_h */