Wrote up the resize triggering logic for most controls. Only uiTab remains.

redo/reredo/darwin/box.m

@@ -98,7 +98,7 @@ static void relayout(uiBox *b)
 
 	[b->view removeConstraints:[b->view constraints]];
 
-	// first collect the views and their fitting sizes (for non-stretchy controls)
+	// first lay out all children, collect the views and their fitting sizes (for non-stretchy controls)
 	// also figure out which is the first stretchy control, if any
 	metrics = [NSMutableDictionary new];
 	views = [NSMutableDictionary new];
@@ -106,12 +106,15 @@ static void relayout(uiBox *b)
 	n = 0;
 	while (n < [b->children count]) {
 		uiControl *child;
+		uiDarwinControl *cc;
 		NSView *childView;
 		NSSize fittingSize;
 
 		child = childAt(b, n);
+		cc = uiDarwinControl(child);
 		childView = (NSView *) uiControlHandle(child);
 		[views setObject:childView forKey:viewName(n)];
+		(*(cc->Relayout))(cc);
 		fittingSize = fittingAlignmentSize(childView);
 		[metrics setObject:[NSNumber numberWithDouble:fittingSize.width]
 			forKey:widthMetricName(n)];
@@ -190,8 +193,6 @@ static void relayout(uiBox *b)
 
 	[metrics release];
 	[views release];
-
-	uiDarwinControlRelayoutParent(uiDarwinControl(b));
 }
 
 static void boxRelayout(uiDarwinControl *c)

redo/reredo/darwin/button.m

@@ -75,7 +75,7 @@ void uiButtonSetText(uiButton *b, const char *text)
 {
 	[b->button setTitle:toNSString(text)];
 	// this may result in the size of the button changing
-	// fortunately Auto Layout handles this for us
+	uiDarwinControlTriggerRelayout(uiDarwinControl(b));
 }
 
 void uiButtonOnClicked(uiButton *b, void (*f)(uiButton *, void *), void *data)

redo/reredo/darwin/checkbox.m

@@ -75,7 +75,7 @@ void uiCheckboxSetText(uiCheckbox *c, const char *text)
 {
 	[c->button setTitle:toNSString(text)];
 	// this may result in the size of the checkbox changing
-	// fortunately Auto Layout handles this for us
+	uiDarwinControlTriggerRelayout(uiDarwinControl(c));
 }
 
 void uiCheckboxOnToggled(uiCheckbox *c, void (*f)(uiCheckbox *, void *), void *data)

redo/reredo/darwin/group.m

@@ -30,6 +30,22 @@ static void onDestroy(uiGroup *g)
 
 // TODO group container update
 
+static void groupRelayout(uiDarwinControl *c)
+{
+	uiGroup *w = uiGroup(c);
+	uiDarwinControl *cc;
+	NSView *childView;
+
+	if (g->child == NULL)
+		return;
+	cc = uiDarwinControl(g->child);
+	childView = (NSView *) uiControlHandle(g->child);
+	// first relayout the child
+	(*(cc->Relayout))(cc);
+	// now relayout ourselves
+	layoutSingleView(g->box, childView, g->margined);
+}
+
 char *uiGroupTitle(uiGroup *g)
 {
 	return PUT_CODE_HERE;
@@ -39,7 +55,7 @@ void uiGroupSetTitle(uiGroup *g, const char *title)
 {
 	[g->box setTitle:toNSString(title)];
 	// changing the text might necessitate a change in the groupbox's size
-//TODO	uiControlQueueResize(uiControl(g));
+	uiDarwinControlTriggerRelayout(uiDarwinControl(g));
 }
 
 void uiGroupSetChild(uiGroup *g, uiControl *child)
@@ -56,8 +72,7 @@ void uiGroupSetChild(uiGroup *g, uiControl *child)
 		childView = (NSView *) uiControlHandle(g->child);
 		uiControlSetParent(g->child, uiControl(g));
 		[g->box addSubview:childView];
-		layoutSingleView(g->box, childView, g->margined);
+		uiDarwinControlTriggerRelayout(uiDarwinControl(g));
-		uiDarwinControlRelayoutParent(uiDarwinControl(g));
 	}
 }
 
@@ -68,14 +83,9 @@ int uiGroupMargined(uiGroup *g)
 
 void uiGroupSetMargined(uiGroup *g, int margined)
 {
-	NSView *childView;
-
 	g->margined = margined;
-	if (g->child != NULL) {
+	if (g->child != NULL)
-		childView = (NSView *) uiControlHandle(g->child);
+		uiDarwinControlTriggerRelayout(uiDarwinControl(g));
-		layoutSingleView(g->box, childView, g->margined);
-		uiDarwinControlRelayoutParent(uiDarwinControl(g));
-	}
 }
 
 uiGroup *uiNewGroup(const char *title)
@@ -94,6 +104,7 @@ uiGroup *uiNewGroup(const char *title)
 	[g->box setTitleFont:[NSFont systemFontOfSize:[NSFont systemFontSizeForControlSize:NSSmallControlSize]]];
 
 	uiDarwinFinishNewControl(g, uiGroup);
+	uiDarwinControl(g)->Relayout = groupRelayout;
 
 	return g;
 }

redo/reredo/darwin/label.m

@@ -21,7 +21,7 @@ void uiLabelSetText(uiLabel *l, const char *text)
 {
 	[l->textfield setStringValue:toNSString(text)];
 	// changing the text might necessitate a change in the label's size
-	// fortunately Auto Layout handles this for us
+	uiDarwinControlTriggerRelayout(uiDarwinControl(l));
 }
 
 uiLabel *uiNewLabel(const char *text)

redo/reredo/darwin/radiobuttons.m

@@ -15,7 +15,7 @@ uiDarwinDefineControl(
 void uiRadioButtonsAppend(uiRadioButtons *r, const char *text)
 {
 	// TODO
-//TODO	uiControlQueueResize(uiControl(r));
+	uiDarwinControlTriggerRelayout(uiDarwinControl(r));
 }
 
 uiRadioButtons *uiNewRadioButtons(void)

redo/reredo/darwin/window.m

@@ -116,6 +116,22 @@ static void windowCommitHide(uiControl *c)
 
 // TODO container update state
 
+static void windowRelayout(uiDarwinControl *c)
+{
+	uiWindow *w = uiWindow(c);
+	uiDarwinControl *cc;
+	NSView *childView;
+
+	if (w->child == NULL)
+		return;
+	cc = uiDarwinControl(w->child);
+	childView = (NSView *) uiControlHandle(w->child);
+	// first relayout the child
+	(*(cc->Relayout))(cc);
+	// now relayout ourselves
+	layoutSingleView([w->window contentView], childView, w->margined);
+}
+
 char *uiWindowTitle(uiWindow *w)
 {
 	return uiDarwinNSStringToText([w->window title]);
@@ -146,7 +162,7 @@ void uiWindowSetChild(uiWindow *w, uiControl *child)
 		uiControlSetParent(w->child, uiControl(w));
 		childView = (NSView *) uiControlHandle(w->child);
 		[[w->window contentView] addSubview:childView];
-		layoutSingleView([w->window contentView], childView, w->margined);
+		uiDarwinControlTriggerRelayout(uiDarwinControl(w));
 	}
 }
 
@@ -157,14 +173,9 @@ int uiWindowMargined(uiWindow *w)
 
 void uiWindowSetMargined(uiWindow *w, int margined)
 {
-	NSView *childView;
-
 	w->margined = margined;
-	if (w->child != NULL) {
+	if (w->child != NULL)
-		childView = (NSView *) uiControlHandle(w->child);
+		uiDarwinControlTriggerRelayout(uiDarwinControl(w));
-		[[w->window contentView] addSubview:childView];
-		layoutSingleView([w->window contentView], childView, w->margined);
-	}
 }
 
 static int defaultOnClosing(uiWindow *w, void *data)
@@ -200,6 +211,7 @@ uiWindow *uiNewWindow(const char *title, int width, int height, int hasMenubar)
 	uiDarwinFinishNewControl(w, uiWindow);
 //TODO	uiControl(w)->CommitShow = windowCommitShow;
 //TODO	uiControl(w)->CommitHide = windowCommitHide;
+	uiDarwinControl(w)->Relayout = windowRelayout;
 
 	return w;
 }