Basic UI.

1 files changed, 72 insertions, 0 deletions

diff --git a/src/wx/audio_plot.cc b/src/wx/audio_plot.cc
new file mode 100644
index 000000000..4fda3227d
--- /dev/null
+++ b/src/wx/audio_plot.cc
@@ -0,0 +1,72 @@
+#include <iostream>
+#include <boost/bind.hpp>
+#include <wx/graphics.h>
+#include "audio_plot.h"
+#include "lib/decoder_factory.h"
+#include "lib/audio_decoder.h"
+#include "lib/audio_analysis.h"
+#include "wx/wx_util.h"
+
+using std::cout;
+using std::vector;
+using std::max;
+using std::min;
+using boost::bind;
+using boost::shared_ptr;
+
+AudioPlot::AudioPlot (wxWindow* parent, shared_ptr<AudioAnalysis> a, int c)
+	: wxPanel (parent)
+	, _analysis (a)
+	, _channel (c)
+{
+	Connect (wxID_ANY, wxEVT_PAINT, wxPaintEventHandler (AudioPlot::paint), 0, this);
+
+	SetMinSize (wxSize (640, 512));
+}
+
+void
+AudioPlot::paint (wxPaintEvent &)
+{
+	wxPaintDC dc (this);
+	wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
+	if (!gc) {
+		return;
+	}
+
+	int const width = GetSize().GetWidth();
+	float const xs = width / float (_analysis->points (_channel));
+	int const height = GetSize().GetHeight ();
+	float const ys = height / 60;
+
+	wxGraphicsPath grid = gc->CreatePath ();
+	gc->SetFont (gc->CreateFont (*wxSMALL_FONT));
+	for (int i = -60; i <= 0; i += 10) {
+		int const y = height - (i + 60) * ys;
+		grid.MoveToPoint (0, y);
+		grid.AddLineToPoint (width, y);
+		gc->DrawText (std_to_wx (String::compose ("%1dB", i)), width - 32, y - 12);
+	}
+	gc->SetPen (*wxLIGHT_GREY_PEN);
+	gc->StrokePath (grid);
+
+	wxGraphicsPath path[AudioPoint::COUNT];
+
+	for (int i = 0; i < AudioPoint::COUNT; ++i) {
+		path[i] = gc->CreatePath ();
+		path[i].MoveToPoint (0, height - (max (_analysis->get_point(_channel, 0)[i], -60.0f) + 60) * ys);
+	}
+
+	for (int i = 0; i < _analysis->points(_channel); ++i) {
+		for (int j = 0; j < AudioPoint::COUNT; ++j) {
+			path[j].AddLineToPoint (i * xs, height - (max (_analysis->get_point(_channel, i)[j], -60.0f) + 60) * ys);
+		}
+	}
+
+	gc->SetPen (*wxBLUE_PEN);
+	gc->StrokePath (path[AudioPoint::RMS]);
+
+	gc->SetPen (*wxRED_PEN);
+	gc->StrokePath (path[AudioPoint::PEAK]);
+
+	delete gc;
+}