andlabs-ui/form.go

107 lines
2.1 KiB
Go

// 14 june 2016
package ui
import (
"unsafe"
)
// #include "ui.h"
import "C"
type Form struct {
c *C.uiControl
f *C.uiForm
children []Control
}
// NewForm creates a new Form.
func NewForm() *Form {
f := new(Form)
f.f = C.uiNewForm()
f.c = (*C.uiControl)(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()
}
C.uiControlDestroy(f.c)
}
// LibuiControl returns the libui uiControl pointer that backs
// the Form. This is only used by package ui itself and should
// not be called by programs.
func (f *Form) LibuiControl() uintptr {
return uintptr(unsafe.Pointer(f.c))
}
// Handle returns the OS-level handle associated with this Form.
func (f *Form) Handle() uintptr {
return uintptr(C.uiControlHandle(f.c))
}
// Show shows the Form.
func (f *Form) Show() {
C.uiControlShow(f.c)
}
// Hide hides the Form.
func (f *Form) Hide() {
C.uiControlHide(f.c)
}
// Enable enables the Form.
func (f *Form) Enable() {
C.uiControlEnable(f.c)
}
// Disable disables the Form.
func (f *Form) Disable() {
C.uiControlDisable(f.c)
}
// 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)
c := (*C.uiControl)(nil)
if child != nil {
c = touiControl(child.LibuiControl())
}
C.uiFormAppend(f.f, clabel, c, frombool(stretchy))
freestr(clabel)
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))
}
// TODO: InsertAt
// 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))
}