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// 15 july 2014
package ui
// #include "winapi_windows.h"
import "C"
type label struct {
*controlbase
standalone bool
supercommitResize func(c *allocation, d *sizing)
}
var labelclass = toUTF16("STATIC")
func finishNewLabel(text string, standalone bool) *label {
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,
0)
c.setText(text)
C.controlSetControlFont(c.hwnd)
l := &label{
controlbase: c,
standalone: standalone,
}
l.fpreferredSize = l.labelpreferredSize
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) 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
// TODO the label is offset slightly by default...
)
func (l *label) labelpreferredSize(d *sizing) (width, height int) {
return int(l.textlen), fromdlgunitsY(labelHeight, d)
}
func (l *label) labelcommitResize(c *allocation, d *sizing) {
if !l.standalone {
yoff := fromdlgunitsY(labelYOffset, d)
c.y += yoff
c.height -= yoff
}
l.supercommitResize(c, d)
}
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