From 7b0a3e8292214cb68bba2b088ebe6d8296c59e6d Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Tue, 28 Apr 2015 16:33:16 -0400
Subject: [PATCH] Added darwin/container.m.

---
 new/darwin/GNUmakeinc.mk |   1 +
 new/darwin/container.m   | 170 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+)
 create mode 100644 new/darwin/container.m

diff --git a/new/darwin/GNUmakeinc.mk b/new/darwin/GNUmakeinc.mk
index 3a534413..8c363285 100644
--- a/new/darwin/GNUmakeinc.mk
+++ b/new/darwin/GNUmakeinc.mk
@@ -2,6 +2,7 @@
 
 osMFILES = \
 	darwin/alloc.m \
+	darwin/container.m \
 	darwin/init.m \
 	darwin/main.m \
 	darwin/menu.m \
diff --git a/new/darwin/container.m b/new/darwin/container.m
new file mode 100644
index 00000000..d398c900
--- /dev/null
+++ b/new/darwin/container.m
@@ -0,0 +1,170 @@
+// 28 april 2015
+#import "uipriv_darwin.h"
+
+@interface containerView : NSView {
+	uiContainer *c;
+	uiContainer *parent;
+	int hidden;
+}
+@property uiContainer *containerParent;
+@property int containerHidden;
+- (void)setContainer:(uiContainer *)cc;
+- (void)containerUpdate;
+@end
+
+@implementation containerView
+
+// TODO allocation logger
+
+- (void)setContainer:(uiContainer *)cc
+{
+	self->c = cc;
+}
+
+// These are based on measurements from Interface Builder.
+// These seem to be based on Auto Layout constants, but I don't see an API that exposes these...
+// This one is 8 for most pairs of controls that I've tried; the only difference is between two pushbuttons, where it's 12...
+#define macXPadding 8
+// Likewise, this one appears to be 12 for pairs of push buttons...
+#define macYPadding 8
+
+- (void)containerUpdate
+{
+	uiSizing d;
+	intmax_t x, y, width, height;
+
+	x = [self bounds].origin.x;
+	y = [self bounds].origin.y;
+	width = [self bounds].size.width;
+	height = [self bounds].size.height;
+	d.xPadding = macXPadding;
+	d.yPadding = macYPadding;
+	uiContainerResizeChildren(self->c, x, y, width, height, &d);
+}
+
+- (void)setFrameSize:(NSSize)s
+{
+	[super setFrameSize:s];
+	[self containerUpdate];
+}
+
+@end
+
+// subclasses override this and call back here when all children are destroyed
+static void containerDestroy(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	if (c.containerParent != NULL)
+		complain("attempt to destroy uiContainer %p while it has a parent", cc);
+	[c release];		// release our initial reference, which destroys the view
+}
+
+static uintptr_t containerHandle(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	return (uintptr_t) c;
+}
+
+static void containerSetParent(uiControl *cc, uiContainer *parent)
+{
+	containerView *c = (containerView *) (cc->Internal);
+	uiContainer *oldparent;
+	NSView *newcontainer;
+
+	oldparent = c.containerParent;
+	c.containerParent = parent;
+	if (oldparent != NULL)
+		[c removeFromSuperview];
+	if (c.containerParent != NULL) {
+		newcontainer = (NSView *) uiControlHandle(uiControl(c.containerParent));
+		[newcontainer addSubview:c];
+	}
+	if (oldparent != NULL)
+		uiContainerUpdate(oldparent);
+	if (c.containerParent != NULL)
+		uiContainerUpdate(c.containerParent);
+}
+
+static void containerResize(uiControl *cc, intmax_t x, intmax_t y, intmax_t width, intmax_t height, uiSizing *d)
+{
+	containerView *c = (containerView *) (cc->Internal);
+	NSRect r;
+
+	r.origin.x = x;
+	r.origin.y = y;
+	r.size.width = width;
+	r.size.height = height;
+	// we can safely use setFrame here since we have no alignment rect to worry about
+	[c setFrame:r];
+}
+
+static int containerVisible(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	return !c.containerHidden;
+}
+
+static void containerShow(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	[c setHidden:NO];
+	c.containerHidden = 0;
+}
+
+static void containerHide(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	[c setHidden:YES];
+	c.containerHidden = 1;
+}
+
+static void containerEnable(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	// TODO
+}
+
+static void containerDisable(uiControl *cc)
+{
+	containerView *c = (containerView *) (cc->Internal);
+
+	// TODO
+}
+
+static void containerUpdate(uiContainer *cc)
+{
+	containerView *c = (containerView *) (uiControl(cc)->Internal);
+
+	[c containerUpdate];
+}
+
+void uiMakeContainer(uiContainer *cc)
+{
+	containerView *c;
+
+	c = [[containerView alloc] initWithFrame:NSZeroRect];
+	[c setContainer:cc];
+	// keep a reference to our container so it stays alive when reparented
+	[c retain];
+
+	uiControl(cc)->Internal = c;
+	uiControl(cc)->Destroy = containerDestroy;
+	uiControl(cc)->Handle = containerHandle;
+	uiControl(cc)->SetParent = containerSetParent;
+	// PreferredSize() is provided by subclasses
+	uiControl(cc)->Resize = containerResize;
+	uiControl(cc)->Visible = containerVisible;
+	uiControl(cc)->Show = containerShow;
+	uiControl(cc)->Hide = containerHide;
+	uiControl(cc)->Enable = containerEnable;
+	uiControl(cc)->Disable = containerDisable;
+
+	// ResizeChildren() is provided by subclasses
+	uiContainer(cc)->Update = containerUpdate;
+}