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// 12 december 2015
package ui
import (
"unsafe"
)
// #include "ui.h"
import "C"
// Form is a Control that holds a group of Controls vertically
// with labels next to each. By default, each control has its
// preferred height; if a control is marked "stretchy", it will take
// whatever space is left over. If multiple controls are marked
// stretchy, they will be given equal shares of the leftover space.
// There can also be space between each control ("padding").
type Form struct {
ControlBase
f *C.uiForm
children []Control
}
// NewForm creates a new horizontal Form.
func NewForm() *Form {
f := new(Form)
f.f = C.uiNewForm()
f.ControlBase = NewControlBase(f, uintptr(unsafe.Pointer(f.f)))
return f
}
// Destroy destroys the Form. If the Form has children,
// Destroy calls Destroy on those Controls as well.
func (f *Form) Destroy() {
for len(f.children) != 0 {
c := f.children[0]
f.Delete(0)
c.Destroy()
}
f.ControlBase.Destroy()
}
// Append adds the given control to the end of the Form.
func (f *Form) Append(label string, child Control, stretchy bool) {
clabel := C.CString(label)
defer freestr(clabel)
c := touiControl(child.LibuiControl())
C.uiFormAppend(f.f, clabel, c, frombool(stretchy))
f.children = append(f.children, child)
}
// Delete deletes the nth control of the Form.
func (f *Form) Delete(n int) {
f.children = append(f.children[:n], f.children[n + 1:]...)
C.uiFormDelete(f.f, C.int(n))
}
// Padded returns whether there is space between each control
// of the Form.
func (f *Form) Padded() bool {
return tobool(C.uiFormPadded(f.f))
}
// SetPadded controls whether there is space between each control
// of the Form. The size of the padding is determined by the OS and
// its best practices.
func (f *Form) SetPadded(padded bool) {
C.uiFormSetPadded(f.f, frombool(padded))
}
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