1 files changed, 97 insertions, 0 deletions
diff --git a/prevlib/prefsize_darwin.m b/prevlib/prefsize_darwin.m
new file mode 100644
index 0000000..4001c3e
--- /dev/null
+++ b/prevlib/prefsize_darwin.m
@@ -0,0 +1,97 @@
+// 15 may 2014
+
+#include "objc_darwin.h"
+#import <AppKit/NSControl.h>
+#import <AppKit/NSScrollView.h>
+#import <AppKit/NSTableView.h>
+#import <AppKit/NSProgressIndicator.h>
+#import <AppKit/NSView.h>
+// needed for the methods called by alignmentInfo()
+#import <AppKit/NSLayoutConstraint.h>
+
+#define to(T, x) ((T *) (x))
+#define toNSControl(x) to(NSControl, (x))
+#define toNSScrollView(x) to(NSScrollView, (x))
+#define toNSTableView(x) to(NSTableView, (x))
+#define toNSProgressIndicator(x) to(NSProgressIndicator, (x))
+#define toNSView(x) to(NSView, (x))
+
+#define inScrollView(x) ([toNSScrollView((x)) documentView])
+#define listboxInScrollView(x) toNSTableView(inScrollView((x)))
+#define areaInScrollView(x) inScrollView((x))
+
+struct xsize controlPrefSize(id control)
+{
+	NSControl *c;
+	NSRect r;
+	struct xsize s;
+
+	c = toNSControl(control);
+	[c sizeToFit];
+	r = [c frame];
+	s.width = (intptr_t) r.size.width;
+	s.height = (intptr_t) r.size.height;
+	return s;
+}
+
+struct xsize listboxPrefSize(id scrollview)
+{
+	NSTableView *c;
+	NSRect r;
+	struct xsize s;
+
+	c = listboxInScrollView(toNSScrollView(scrollview));
+	[c sizeToFit];
+	r = [c frame];
+	s.width = (intptr_t) r.size.width;
+	s.height = (intptr_t) r.size.height;
+	return s;
+}
+
+struct xsize pbarPrefSize(id control)
+{
+	NSProgressIndicator *c;
+	NSRect r;
+	struct xsize s;
+
+	c = toNSProgressIndicator(control);
+	[c sizeToFit];
+	r = [c frame];
+	s.width = (intptr_t) r.size.width;
+	s.height = (intptr_t) r.size.height;
+	return s;
+}
+
+struct xsize areaPrefSize(id scrollview)
+{
+	NSView *c;
+	NSRect r;
+	struct xsize s;
+
+	c = areaInScrollView(toNSScrollView(scrollview));
+	// don't size to fit; the frame size is already the size we want
+	r = [c frame];
+	s.width = (intptr_t) r.size.width;
+	s.height = (intptr_t) r.size.height;
+	return s;
+}
+
+struct xalignment alignmentInfo(id c, struct xrect newrect)
+{
+	NSView *v;
+	struct xalignment a;
+	NSRect r;
+
+	v = toNSView(c);
+	r = NSMakeRect((CGFloat) newrect.x,
+		(CGFloat) newrect.y,
+		(CGFloat) newrect.width,
+		(CGFloat) newrect.height);
+	r = [v alignmentRectForFrame:r];
+	a.alignmentRect.x = (intptr_t) r.origin.x;
+	a.alignmentRect.y = (intptr_t) r.origin.y;
+	a.alignmentRect.width = (intptr_t) r.size.width;
+	a.alignmentRect.height = (intptr_t) r.size.height;
+	a.baseline = (intptr_t) [v baselineOffsetFromBottom];
+	return a;
+}