From d018953d7ef1b276cc3229e04ba6fc75018c888a Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Sat, 2 Aug 2014 22:35:58 -0400
Subject: Split all the Control implementations into their own files and
 renamed the containerctrls implementation files to say tab instead as they
 only hold Tab. This is the first part of what should hopefully be the final
 restructuring.

---
 redo/label_darwin.go | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 redo/label_darwin.go

(limited to 'redo/label_darwin.go')

diff --git a/redo/label_darwin.go b/redo/label_darwin.go
new file mode 100644
index 0000000..2e73b2e
--- /dev/null
+++ b/redo/label_darwin.go
@@ -0,0 +1,61 @@
+// 16 july 2014
+
+package ui
+
+// #include "objc_darwin.h"
+import "C"
+
+// cheap trick
+type label struct {
+	*textField
+	standalone			bool
+	supercommitResize		func(c *allocation, d *sizing)
+}
+
+func finishNewLabel(text string, standalone bool) *label {
+	l := &label{
+		textField:		finishNewTextField(C.newLabel()),
+		standalone:	standalone,
+	}
+	l.SetText(text)
+	l.supercommitResize = l.fcommitResize
+	l.fcommitResize = l.labelcommitResize
+	return l
+}
+
+func newLabel(text string) Label {
+	return finishNewLabel(text, false)
+}
+
+func newStandaloneLabel(text string) Label {
+	return finishNewLabel(text, true)
+}
+
+func (l *label) labelcommitResize(c *allocation, d *sizing) {
+	if !l.standalone && c.neighbor != nil {
+		c.neighbor.getAuxResizeInfo(d)
+		if d.neighborAlign.baseline != 0 {		// no adjustment needed if the given control has no baseline
+			// in order for the baseline value to be correct, the label MUST BE AT THE HEIGHT THAT OS X WANTS IT TO BE!
+			// otherwise, the baseline calculation will be relative to the bottom of the control, and everything will be wrong
+			origsize := C.controlPrefSize(l.id)
+			c.height = int(origsize.height)
+			newrect := C.struct_xrect{
+				x:		C.intptr_t(c.x),
+				y:		C.intptr_t(c.y),
+				width:	C.intptr_t(c.width),
+				height:	C.intptr_t(c.height),
+			}
+			ourAlign := C.alignmentInfo(l.id, newrect)
+			// we need to find the exact Y positions of the baselines
+			// fortunately, this is easy now that (x,y) is the bottom-left corner
+			thisbasey := ourAlign.rect.y + ourAlign.baseline
+			neighborbasey := d.neighborAlign.rect.y + d.neighborAlign.baseline
+			// now the amount we have to move the label down by is easy to find
+			yoff := neighborbasey - thisbasey
+			// and we just add that
+			c.y += int(yoff)
+		}
+		// TODO if there's no baseline, the alignment should be to the top /of the alignment rect/, not the frame
+	}
+	l.supercommitResize(c, d)
+}
-- 
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