LET'S GET THIS FINAL REWRITE EVER STARTED

1 files changed, 66 insertions, 0 deletions

diff --git a/prev/label_windows.go b/prev/label_windows.go
new file mode 100644
index 0000000..49f70fc
--- /dev/null
+++ b/prev/label_windows.go
@@ -0,0 +1,66 @@
+// 15 july 2014
+
+package ui
+
+// #include "winapi_windows.h"
+import "C"
+
+type label struct {
+	*controlSingleHWNDWithText
+}
+
+var labelclass = toUTF16("STATIC")
+
+func newLabel(text string) Label {
+	hwnd := C.newControl(labelclass,
+		// SS_NOPREFIX avoids accelerator translation; SS_LEFTNOWORDWRAP clips text past the end
+		// controls are vertically aligned to the top by default (thanks Xeek in irc.freenode.net/#winapi)
+		C.SS_NOPREFIX|C.SS_LEFTNOWORDWRAP,
+		C.WS_EX_TRANSPARENT)
+	l := &label{
+		controlSingleHWNDWithText:		newControlSingleHWNDWithText(hwnd),
+	}
+	l.fpreferredSize = l.xpreferredSize
+	l.fnTabStops = func() int {
+		// labels are not tab stops
+		return 0
+	}
+	l.SetText(text)
+	C.controlSetControlFont(l.hwnd)
+	return l
+}
+
+func (l *label) Text() string {
+	return l.text()
+}
+
+func (l *label) SetText(text string) {
+	l.setText(text)
+}
+
+const (
+	// via http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
+	labelHeight  = 8
+	labelYOffset = 3
+)
+
+func (l *label) xpreferredSize(d *sizing) (width, height int) {
+	return int(l.textlen), fromdlgunitsY(labelHeight, d)
+}
+
+/*TODO
+func (l *label) commitResize(c *allocation, d *sizing) {
+	if !l.standalone {
+		yoff := fromdlgunitsY(labelYOffset, d)
+		c.y += yoff
+		c.height -= yoff
+		// by default, labels are drawn offset by the internal leading (the space reserved for accents on uppercase letters)
+		// the above calculation assumes otherwise, so account for the difference
+		// there will be enough space left over for the internal leading anyway (at least on the standard fonts)
+		// don't do this to standalone labels, otherwise those accents get cut off!
+		c.y -= int(d.internalLeading)
+		c.height += int(d.internalLeading)
+	}
+	basecommitResize(l, c, d)
+}
+*/