92 lines
2.4 KiB
Go
92 lines
2.4 KiB
Go
// 16 july 2014
|
|
|
|
package ui
|
|
|
|
import (
|
|
"unsafe"
|
|
)
|
|
|
|
// #include "objc_darwin.h"
|
|
import "C"
|
|
|
|
type label struct {
|
|
_id C.id
|
|
standalone bool
|
|
}
|
|
|
|
func finishNewLabel(text string, standalone bool) *label {
|
|
l := &label{
|
|
_id: C.newLabel(),
|
|
standalone: standalone,
|
|
}
|
|
l.SetText(text)
|
|
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 C.GoString(C.textFieldText(l._id))
|
|
}
|
|
|
|
func (l *label) SetText(text string) {
|
|
ctext := C.CString(text)
|
|
defer C.free(unsafe.Pointer(ctext))
|
|
C.textFieldSetText(l._id, ctext)
|
|
}
|
|
|
|
func (l *label) id() C.id {
|
|
return l._id
|
|
}
|
|
|
|
func (l *label) setParent(p *controlParent) {
|
|
basesetParent(l, p)
|
|
}
|
|
|
|
func (l *label) allocate(x int, y int, width int, height int, d *sizing) []*allocation {
|
|
return baseallocate(l, x, y, width, height, d)
|
|
}
|
|
|
|
func (l *label) preferredSize(d *sizing) (width, height int) {
|
|
return basepreferredSize(l, d)
|
|
}
|
|
|
|
func (l *label) commitResize(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.controlPreferredSize(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)
|
|
}
|
|
// in the other case, the most correct thing would be for Label to be aligned to the alignment rect, but I can't get this working, and it looks fine as it is anyway
|
|
}
|
|
basecommitResize(l, c, d)
|
|
}
|
|
|
|
func (l *label) getAuxResizeInfo(d *sizing) {
|
|
basegetAuxResizeInfo(l, d)
|
|
}
|