use a better style mask

cocoatea/cocoatea.mm

@@ -34,8 +34,13 @@ main (int argc, char* argv[])
 	NSRect rect = NSMakeRect (100, 100, 1800, 399);
 	NSRect frameRect = NSMakeRect (0, 0, 1800, 399);
 
+	NSUInteger style_mask = (NSTitledWindowMask |
+	                         NSClosableWindowMask |
+	                         NSMiniaturizableWindowMask |
+	                         NSResizableWindowMask);
+
 	NSWindow* win = [[NSWindow alloc] initWithContentRect:rect
-	                styleMask:NSWindowStyleMaskClosable
+	                styleMask:style_mask
 	                backing:NSBackingStoreBuffered
 	                defer:NO];
 
@@ -47,7 +52,6 @@ main (int argc, char* argv[])
 	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
 	[win makeKeyAndOrderFront:win];
 
-	[NSRunLoop currentRunLoop];
 	[NSTimer scheduledTimerWithTimeInterval:0.02 target:view selector:@selector(timedUpdate) userInfo:nil repeats:YES];
 
 	[[NSApplication sharedApplication] run];

cocoatea/meter.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <AppKit/AppKit.h>
+
+#include "view.h"
+
+struct Meter {
+	double x;
+	double y;
+	double width;
+	double height;
+	double r;
+	double g;
+	double b;
+	double a;
+	double level;
+	NSView* view;
+
+	Meter (NSView* view, double ax, double ay, double aw, double ah, double ar, double ag, double ab, double aa);
+
+	void set_level (double);
+	void draw (CGContextRef);
+};

cocoatea/meter.mm

@@ -0,0 +1,44 @@
+/* -*- c++ -*- */
+#include "meter.h"
+#include "view.h"
+
+Meter::Meter (NSView* v, double ax, double ay, double aw, double ah, double ar, double ag, double ab, double aa)
+	: x (ax)
+	, y (ay)
+	, width (aw)
+	, height (ah)
+	, r (ar)
+	, g (ag)
+	, b (ab)
+	, a (aa)
+	, level (0.)
+	, view (v)
+{
+}
+
+void
+Meter::draw (CGContextRef cg)
+{
+	NSRect bbox = NSMakeRect (x, y, width, height);
+
+	if (! [view needsToDrawRect:bbox]) {
+		return;
+	}
+
+	CGContextSetRGBStrokeColor (cg, 1., 1., 1., 1.);
+	CGContextStrokeRect (cg, NSMakeRect (x, y, width, height));
+
+	CGContextSetRGBFillColor (cg, r, g, b, a);
+	double fill_height = height - (height * level);
+	CGContextFillRect (cg, NSMakeRect (x, y + fill_height, width, height - fill_height));
+
+	CGContextSetRGBFillColor (cg, 0, 0., 0., 1.0);
+	CGContextFillRect (cg, NSMakeRect (x, y, width, fill_height));
+}
+
+void
+Meter::set_level (double f)
+{
+	level = f;
+	[view setNeedsDisplayInRect:NSMakeRect (x, y, width, height)];
+}

cocoatea/view.h

@@ -1,3 +1,5 @@
+#pragma once
+
 #include <AppKit/AppKit.h>
 
 @interface CTView : NSView

cocoatea/view.mm

@@ -35,28 +35,37 @@ extern std::vector<Meter*> meters;
 
 -(void) timedUpdate
 {
+#if 0
+	int n = random() % meters.size();
+	meters[n]->set_level ((random() % (int) meters[n]->height) / meters[n]->height);
+#endif
 	for (auto & m : meters) {
-		m->set_level ((random() % (int) m->height) / m->height);
+		if ((random() % 100) == 0) {
+			m->set_level ((random() % (int) m->height) / m->height);
+		}
 	}
 }
 
 -(void)drawRect: (NSRect)rect
 {
-	// printf ("%g, %g %g x %g\n", rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
-
+#if 0
+	if (rect.size.width != 10 && rect.size.height != 50) {
+		printf ("%g, %g %g x %g\n", rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
+	}
+#endif
 	CGContextRef cg = [[NSGraphicsContext currentContext] CGContext];
 
 	for (auto & m : meters) {
 		m->draw (cg);
 	}
 
-#if 0
 	const NSRect *drawn_rects;
 	long count;
 	int i;
 
 	[self getRectsBeingDrawn: &drawn_rects count: &count];
 
+#if 0
 	printf ("%ld rects to draw\n", count);
 	for (i = 0; i < count; i++) {
 		//printf ("\trect %d: %g, %g %g x %g\n", i, drawn_rects[i].origin.x, drawn_rects[i].origin.y, drawn_rects[i].size.width, drawn_rects[i].size.height);