Fixed non-wrapping uiMultlineEntries.

README.md

@@ -18,6 +18,7 @@ This README is being written.<br>
 ** Removed `uiControlVerifyDestroy()`; that is now part of `uiFreeControl()` itself.
 ** Added `uiPi`, a constant for π. This is provided for C and C++ programmers, where there is no standard named constant for π; bindings authors shouldn't need to worry about this.
 ** Fixed uiMultilineEntry not properly having line breaks on Windows.
+** Added `uiNewNonWrappingMultilineEntry()`, which creates a uiMultilineEntry that scrolls horizontally instead of wrapping lines. (This is not documented as being changeable after the fact on Windows, hence it's a creation-time choice.)
 
 ## Runtime Requirements
 

darwin/autolayout.m

@@ -150,9 +150,8 @@ void singleChildConstraintsSetMargined(struct singleChildConstraints *c, int mar
 		[c->bottomConstraintEqual setConstant:margin];
 }
 
-// from http://blog.bjhomer.com/2014/08/nsscrollview-and-autolayout.html because (as pointed out there) Apple's official guide is really only for iOS
-// TODO this doesn't quite work with NSTextView; it *mostly* works
-void scrollViewConstraintsEstablish(struct scrollViewConstraints *c, NSScrollView *sv, NSString *desc)
+// based on http://blog.bjhomer.com/2014/08/nsscrollview-and-autolayout.html because (as pointed out there) Apple's official guide is really only for iOS
+void scrollViewConstraintsEstablish(struct scrollViewConstraints *c, NSScrollView *sv, BOOL hscroll, BOOL vscroll, NSString *desc)
 {
 	NSView *cv, *dv;
 
@@ -176,23 +175,25 @@ void scrollViewConstraintsEstablish(struct scrollViewConstraints *c, NSScrollVie
 	[sv addConstraint:c->documentTop];
 	[c->documentTop retain];
 
-	c->documentTrailing = mkConstraint(dv, NSLayoutAttributeTrailing,
-		NSLayoutRelationEqual,
-		cv, NSLayoutAttributeTrailing,
-		1, 0,
-		[desc stringByAppendingString:@"document trailing constraint"]);
-	[sv addConstraint:c->documentTrailing];
-	[c->documentTrailing retain];
+	if (!hscroll) {
+		c->documentTrailing = mkConstraint(dv, NSLayoutAttributeTrailing,
+			NSLayoutRelationEqual,
+			cv, NSLayoutAttributeTrailing,
+			1, 0,
+			[desc stringByAppendingString:@"document trailing constraint"]);
+		[sv addConstraint:c->documentTrailing];
+		[c->documentTrailing retain];
+	}
 
-#if 0
-	c->documentBottom = mkConstraint(dv, NSLayoutAttributeBottom,
-		NSLayoutRelationEqual,
-		sv, NSLayoutAttributeBottom,
-		1, 0,
-		[desc stringByAppendingString:@"document bottom constraint"]);
-	[sv addConstraint:c->documentBottom];
-	[c->documentBottom retain];
-#endif
+	if (!vscroll) {
+		c->documentBottom = mkConstraint(dv, NSLayoutAttributeBottom,
+			NSLayoutRelationEqual,
+			sv, NSLayoutAttributeBottom,
+			1, 0,
+			[desc stringByAppendingString:@"document bottom constraint"]);
+		[sv addConstraint:c->documentBottom];
+		[c->documentBottom retain];
+	}
 }
 
 void scrollViewConstraintsRemove(struct scrollViewConstraints *c, NSScrollView *sv)

darwin/multilineentry.m

@@ -1,6 +1,8 @@
 // 8 december 2015
 #import "uipriv_darwin.h"
 
+// TODO you actually have to click on parts with a line in them in order to start editing; clicking below the last line doesn't give focus
+
 // NSTextView has no intrinsic content size by default, which wreaks havoc on a pure-Auto Layout system
 // we'll have to take over to get it to work
 // see also http://stackoverflow.com/questions/24210153/nstextview-not-properly-resizing-with-auto-layout and http://stackoverflow.com/questions/11237622/using-autolayout-with-expanding-nstextviews
@@ -149,6 +151,12 @@ static uiMultilineEntry *finishMultilineEntry(BOOL hscroll)
 	disableAutocorrect(e->tv);
 	// this option is complex; just set it to the Interface Builder default
 	[[e->tv layoutManager] setAllowsNonContiguousLayout:YES];
+	if (hscroll) {
+		// TODO this is a giant mess
+		[e->tv setHorizontallyResizable:YES];
+		[[e->tv textContainer] setWidthTracksTextView:NO];
+		[[e->tv textContainer] setContainerSize:NSMakeSize(CGFLOAT_MAX, CGFLOAT_MAX)];
+	}
 	// don't use uiDarwinSetControlFont() directly; we have to do a little extra work to set the font
 	font = [NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize:NSRegularControlSize]];
 	[e->tv setTypingAttributes:[NSDictionary
@@ -160,7 +168,7 @@ static uiMultilineEntry *finishMultilineEntry(BOOL hscroll)
 
 	[e->sv setDocumentView:e->tv];
 	[e->tv setTranslatesAutoresizingMaskIntoConstraints:NO];
-	scrollViewConstraintsEstablish(&(e->constraints), e->sv, @"uiMultilineEntry");
+	scrollViewConstraintsEstablish(&(e->constraints), e->sv, hscroll, YES, @"uiMultilineEntry");
 	// needed to allow horizontal shrinking
 	// TODO what about vertical text?
 	[e->tv setContentCompressionResistancePriority:NSLayoutPriorityDefaultLow forOrientation:NSLayoutConstraintOrientationHorizontal];

darwin/uipriv_darwin.h

@@ -80,7 +80,7 @@ struct scrollViewConstraints {
 	NSLayoutConstraint *documentWidth;
 	NSLayoutConstraint *documentHeight;
 };
-extern void scrollViewConstraintsEstablish(struct scrollViewConstraints *c, NSScrollView *sv, NSString *desc);
+extern void scrollViewConstraintsEstablish(struct scrollViewConstraints *c, NSScrollView *sv, BOOL hscroll, BOOL vscroll, NSString *desc);
 extern void scrollViewConstraintsRemove(struct scrollViewConstraints *c, NSScrollView *sv);
 
 // map.m