add canvas-based Meter object

libs/canvas/canvas/meter.h

@@ -29,9 +29,11 @@
 
 #include "canvas/item.h"
 
-namespace ArdourSurface {
+namespace ArdourCanvas {
 
-class Meter : public ArdourCanvas::Item {
+class Canvas;
+
+class Meter : public Item {
   public:
 	enum Orientation {
 		Horizontal,
@@ -53,6 +55,22 @@ class Meter : public ArdourCanvas::Item {
 	       float stp3 = 100.0,
 	       int styleflags = 3
 		);
+
+	Meter (ArdourCanvas::Canvas* canvas,
+	       long hold_cnt, unsigned long width, Orientation, int len=0,
+	       int clr0=0x008800ff, int clr1=0x008800ff,
+	       int clr2=0x00ff00ff, int clr3=0x00ff00ff,
+	       int clr4=0xffaa00ff, int clr5=0xffaa00ff,
+	       int clr6=0xffff00ff, int clr7=0xffff00ff,
+	       int clr8=0xff0000ff, int clr9=0xff0000ff,
+	       int bgc0=0x333333ff, int bgc1=0x444444ff,
+	       int bgh0=0x991122ff, int bgh1=0x551111ff,
+	       float stp0 = 55.0, // log_meter(-18);
+	       float stp1 = 77.5, // log_meter(-9);
+	       float stp2 = 92.5, // log_meter(-3); // 95.0, // log_meter(-2);
+	       float stp3 = 100.0,
+	       int styleflags = 3
+		);
 	virtual ~Meter ();
 	static void flush_pattern_cache();
 
@@ -95,6 +113,15 @@ class Meter : public ArdourCanvas::Item {
 	float current_user_level;
 	bool highlight;
 
+	void init (int clr0, int clr1, int clr2, int clr3,
+	           int clr4, int clr5, int clr6, int clr7,
+	           int clr8, int clr9,
+	           int bgc0, int bgc1,
+	           int bgh0, int bgh1,
+	           float stp0, float stp1,
+	           float stp2, float stp3,
+	           int dimen, int len);
+
 	void vertical_expose (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
 	void queue_vertical_redraw (float old_level);
 

libs/canvas/meter.cc

@@ -31,16 +31,14 @@
 #include <gtkmm2ext/rgb_macros.h>
 
 #include "canvas/canvas.h"
-#include "canvas/utils.h"
 #include "canvas/colors.h"
-
-#include "meter.h"
+#include "canvas/meter.h"
+#include "canvas/utils.h"
 
 using namespace Glib;
-using namespace Gtkmm2ext;
 using namespace std;
 using namespace ArdourCanvas;
-using namespace ArdourSurface;
+using namespace Gtkmm2ext;
 
 int Meter::min_pattern_metric_size = 16;
 int Meter::max_pattern_metric_size = 1024;
@@ -73,6 +71,45 @@ Meter::Meter (Item* parent, long hold, unsigned long dimen, Orientation o, int l
 	, current_level(0)
 	, current_peak(0)
 	, highlight(false)
+{
+	init (clr0, clr1, clr2, clr3, clr4, clr5, clr6, clr7, clr8, clr9, bgc0, bgc1, bgh0, bgh1, stp0, stp1, stp2,  stp3, dimen, len);
+}
+
+Meter::Meter (Canvas* canvas, long hold, unsigned long dimen, Orientation o, int len,
+		int clr0, int clr1, int clr2, int clr3,
+		int clr4, int clr5, int clr6, int clr7,
+		int clr8, int clr9,
+		int bgc0, int bgc1,
+		int bgh0, int bgh1,
+		float stp0, float stp1,
+		float stp2, float stp3,
+		int styleflags
+		)
+	: Item (canvas)
+	, pixheight(0)
+	, pixwidth(0)
+	, _styleflags(styleflags)
+	, orientation(o)
+	, hold_cnt(hold)
+	, hold_state(0)
+	, bright_hold(false)
+	, current_level(0)
+	, current_peak(0)
+	, highlight(false)
+{
+	init (clr0, clr1, clr2, clr3, clr4, clr5, clr6, clr7, clr8, clr9, bgc0, bgc1, bgh0, bgh1, stp0, stp1, stp2,  stp3, dimen, len);
+}
+
+void
+Meter::init (int clr0, int clr1, int clr2, int clr3,
+             int clr4, int clr5, int clr6, int clr7,
+             int clr8, int clr9,
+             int bgc0, int bgc1,
+             int bgh0, int bgh1,
+             float stp0, float stp1,
+             float stp2, float stp3,
+             int dimen,
+             int len)
 {
 	last_peak_rect.width = 0;
 	last_peak_rect.height = 0;

libs/canvas/wscript

@@ -46,6 +46,7 @@ canvas_sources = [
         'line.cc',
         'line_set.cc',
         'lookup_table.cc',
+        'meter.cc',
         'outline.cc',
         'pixbuf.cc',
         'poly_item.cc',