From 43a13abfc7768b5e559d8ef635a3a0748fe9906f Mon Sep 17 00:00:00 2001
From: rodri <rgl@antares-labs.eu>
Date: Mon, 15 Jun 2020 21:14:00 +0000
Subject: add save rmb menu option.

---
 canvas.c | 11 +++++++++++
 fns.h    |  1 +
 main.c   | 23 ++++++++++++++++++-----
 3 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/canvas.c b/canvas.c
index 36a0aec..d8077a0 100644
--- a/canvas.c
+++ b/canvas.c
@@ -49,3 +49,14 @@ addlayer(Canvas *c, char *name)
 		c->curlayer = l;
 	return l;
 }
+
+Layer*
+getlayer(Canvas *c, char *name)
+{
+	Layer *l;
+
+	for(l = c->layers.next; l != &c->layers; l = l->next)
+		if(strcmp(l->name, name) == 0)
+			return l;
+	return nil;
+}
diff --git a/fns.h b/fns.h
index 7a9176d..fe9ca4f 100644
--- a/fns.h
+++ b/fns.h
@@ -7,6 +7,7 @@ Image *eallocimage(Display*, Rectangle, ulong, int, ulong);
 Canvas *newcanvas(char*, Point2, Rectangle, ulong);
 void rmcanvas(Canvas*);
 Layer *addlayer(Canvas*, char*);
+Layer *getlayer(Canvas*, char*);
 
 /* layer */
 Layer *newlayer(char*, Rectangle, ulong);
diff --git a/main.c b/main.c
index 389b532..1968067 100644
--- a/main.c
+++ b/main.c
@@ -98,6 +98,7 @@ genrmbmenuitem(int idx)
 		NEW,
 		NEWLAYER,
 		SETCOLOR,
+		SAVE,
 		SEP,
 		NITEMS
 	};
@@ -107,6 +108,7 @@ genrmbmenuitem(int idx)
 	case NEW: return "new";
 	case NEWLAYER: return "new layer";
 	case SETCOLOR: return "set color";
+	case SAVE: return "save";
 	case SEP: return "";
 	}
 
@@ -129,12 +131,13 @@ rmb(Mousectl *mc, Keyboardctl *kc)
 		NEW,
 		NEWLAYER,
 		SETCOLOR,
+		SAVE,
 		SEP,
 		NITEMS
 	};
 	static Menu menu = { .gen = genrmbmenuitem };
 	char buf[256], chanstr[9+1], *s;
-	int w, h, idx;
+	int w, h, idx, fd;
 	ulong chan;
 	Point2 cpos;
 	Layer *l;
@@ -154,16 +157,14 @@ rmb(Mousectl *mc, Keyboardctl *kc)
 		chan = strtochan(s);
 		cpos = Pt2(Dx(screen->r)/2 - w/2,Dy(screen->r)/2 - h/2,1);
 		curcanvas = newcanvas("default", cpos, Rect(0,0,w,h), chan);
-		fprint(2, "created canvas %s\n", curcanvas->name);
 		break;
 	case NEWLAYER:
 		if(curcanvas == nil)
 			break;
 		buf[0] = 0;
-		while(strlen(buf) == 0)
+		while(strlen(buf) == 0 || getlayer(curcanvas, buf) != nil)
 			enter("layer name", buf, sizeof buf, mc, kc, nil);
 		addlayer(curcanvas, buf);
-		fprint(2, "created layer %s\n", buf);
 		break;
 	case SETCOLOR:
 		buf[0] = 0;
@@ -171,6 +172,19 @@ rmb(Mousectl *mc, Keyboardctl *kc)
 			enter("hex value", buf, sizeof buf, mc, kc, nil);
 		brushcolor = eallocimage(display, Rect(0,0,1,1), screen->chan, 1, strtoul(buf, nil, 16));
 		break;
+	case SAVE:
+		if(curcanvas == nil)
+			break;
+		buf[0] = 0;
+		while(strlen(buf) == 0)
+			enter("file", buf, sizeof buf, mc, kc, nil);
+		fd = create(buf, OWRITE, 0666);
+		if(fd < 0)
+			break;
+		drawcanvas(curcanvas);
+		writeimage(fd, curcanvas->image, 1);
+		close(fd);
+		break;	
 	case SEP:
 		return;
 	}
@@ -181,7 +195,6 @@ rmb(Mousectl *mc, Keyboardctl *kc)
 		while(l != &curcanvas->layers && idx--)
 			l = l->next;
 		curcanvas->curlayer = l;
-		fprint(2, "curlayer %s\n", l->name);
 	}
 }
 
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