From bb19a5931526d140c72f96edfbbcd403706d4b0c Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Sat, 16 Nov 2024 18:37:14 -0700
Subject: [PATCH] extend cocoa drawing test

Test app now draws 500 "meters" at random levels @ 50Hz.
---
 cocoatea/cocoatea.mm | 43 +++++++++++++++++++++++++++----------------
 cocoatea/view.mm     | 35 +++++++++++++++++++++++++----------
 cocoatea/wscript     |  5 +++--
 3 files changed, 55 insertions(+), 28 deletions(-)

diff --git a/cocoatea/cocoatea.mm b/cocoatea/cocoatea.mm
index 5925ae7491..43ff30411d 100644
--- a/cocoatea/cocoatea.mm
+++ b/cocoatea/cocoatea.mm
@@ -1,17 +1,38 @@
 /* -*- c++ -*- */
 
+#include <vector>
+
 #include <AppKit/AppKit.h>
 
+#include "meter.h"
 #include "view.h"
 
+std::vector<Meter*> meters;
+
+void
+layout (NSView* view)
+{
+	double width = 10;
+	double height = 50;
+	double padding = 5;
+
+	for (int line = 0; line < 6; ++line) {
+		for (int n = 0; n < 100; ++n) {
+			double r = (random() % 255) / 256.;
+			double g = (random() % 255) / 256.;
+			double b = (random() % 255) / 256.;
+			meters.push_back (new Meter (view, n * (width + padding), line * (height + padding), width, height, r, g, b, 1.0));
+		}
+	}
+}
 
 int
 main (int argc, char* argv[])
 {
 	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
 
-	NSRect rect = NSMakeRect (100, 100, 500, 500);
-	NSRect frameRect = NSMakeRect (10, 10, 480, 480);
+	NSRect rect = NSMakeRect (100, 100, 1800, 399);
+	NSRect frameRect = NSMakeRect (0, 0, 1800, 399);
 
 	NSWindow* win = [[NSWindow alloc] initWithContentRect:rect
 	                styleMask:NSWindowStyleMaskClosable
@@ -20,28 +41,18 @@ main (int argc, char* argv[])
 
 	CTView* view = [[CTView alloc] initWithFrame:frameRect];
 
+	layout (view);
+
 	[win setContentView:view];
-	[[NSApplication sharedApplication] activateIgnoringOtherApps : YES ];
+	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
 	[win makeKeyAndOrderFront:win];
 
 	[NSRunLoop currentRunLoop];
-	[NSTimer scheduledTimerWithTimeInterval:0.1 target:view selector:@selector(timedUpdate) userInfo:nil repeats:YES];
+	[NSTimer scheduledTimerWithTimeInterval:0.02 target:view selector:@selector(timedUpdate) userInfo:nil repeats:YES];
 
 	[[NSApplication sharedApplication] run];
 
-
 	[pool release];
 
 	return 0;
 }
-
-
-/*
-
-  1, derive a new View type that will have our drawing methods
-  2. add time to the run loop to trigger redraws
-
-  figure out how to draw
-  
-
- */
diff --git a/cocoatea/view.mm b/cocoatea/view.mm
index 597f3a7f7a..61160b5a15 100644
--- a/cocoatea/view.mm
+++ b/cocoatea/view.mm
@@ -1,10 +1,15 @@
 /* -*- c++ -*- */
 
 #include <cstdlib>
+#include <vector>
+
 #include <stdio.h>
 
+#include "meter.h"
 #include "view.h"
 
+extern std::vector<Meter*> meters;
+
 @implementation CTView
 
 -(BOOL)acceptsFirstResponder
@@ -23,34 +28,44 @@
   return YES;
 }
 
+-(BOOL)opaque
+{
+  return NO;
+}
+
 -(void) timedUpdate
 {
-	NSRect rect = NSMakeRect (random() % 100, random() % 100, random() % 400, random() % 400);
-	[self setNeedsDisplayInRect:rect];
+	for (auto & m : meters) {
+		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);
+	// printf ("%g, %g %g x %g\n", rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
 
+	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];
 
-	NSGraphicsContext* context = [NSGraphicsContext currentContext];
-	CGContextRef cg = [context CGContext];
-
-	//printf ("%ld rects to draw\n", count);
+	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);
-		// CGContextSetRGBFillColor (cg, 1.0, 1.0, 1.0, 0.0); 
+		//CGContextSetRGBFillColor (cg, 1.0, 0.0, 0.0, 1.0); 
 		CGContextSetRGBStrokeColor (cg, 1.0, 1.0, 1.0, 1.0);
-		// CGContextFillRect (cg, drawn_rects[i]);
+		//CGContextFillRect (cg, drawn_rects[i]);
 		CGContextStrokeRect (cg, drawn_rects[i]);
 	}
-
+#endif
 }
 
 -(void)windowWillClose:(NSNotification *)notification
diff --git a/cocoatea/wscript b/cocoatea/wscript
index 1a9c72315f..03f43e8fad 100644
--- a/cocoatea/wscript
+++ b/cocoatea/wscript
@@ -3,8 +3,9 @@ import os
 import sys
 
 cocoatea_sources = [
-        'cocoatea.mm',
-        'view.mm'
+    'cocoatea.mm',
+    'view.mm',
+    'meter.mm'
 ]
 
 def options(opt):