andlabs-ui/multilineentry.go

95 lines
2.5 KiB
Go

// 12 december 2015
// TODO typing in entry in OS X crashes libui
// I've had similar issues with checkboxes on libui
// something's wrong with NSMapTable
package ui
import (
"unsafe"
)
// #include "pkgui.h"
import "C"
// MultilineEntry is a Control that represents a space that the user
// can type multiple lines of text into.
type MultilineEntry struct {
ControlBase
e *C.uiMultilineEntry
onChanged func(*MultilineEntry)
}
func finishNewMultilineEntry(ee *C.uiMultilineEntry) *MultilineEntry {
m := new(MultilineEntry)
m.e = ee
C.pkguiMultilineEntryOnChanged(m.e)
m.ControlBase = NewControlBase(m, uintptr(unsafe.Pointer(m.e)))
return m
}
// NewMultilineEntry creates a new MultilineEntry.
// The MultilineEntry soft-word-wraps and has no horizontal
// scrollbar.
func NewMultilineEntry() *MultilineEntry {
return finishNewMultilineEntry(C.uiNewMultilineEntry())
}
// NewNonWrappingMultilineEntry creates a new MultilineEntry.
// The MultilineEntry does not word-wrap and thus has horizontal
// scrollbar.
func NewNonWrappingMultilineEntry() *MultilineEntry {
return finishNewMultilineEntry(C.uiNewNonWrappingMultilineEntry())
}
// Text returns the MultilineEntry's text.
func (m *MultilineEntry) Text() string {
ctext := C.uiMultilineEntryText(m.e)
text := C.GoString(ctext)
C.uiFreeText(ctext)
return text
}
// SetText sets the MultilineEntry's text to text.
func (m *MultilineEntry) SetText(text string) {
ctext := C.CString(text)
C.uiMultilineEntrySetText(m.e, ctext)
freestr(ctext)
}
// Append adds text to the end of the MultilineEntry's text.
// TODO selection and scroll behavior
func (m *MultilineEntry) Append(text string) {
ctext := C.CString(text)
C.uiMultilineEntryAppend(m.e, ctext)
freestr(ctext)
}
// OnChanged registers f to be run when the user makes a change to
// the MultilineEntry. Only one function can be registered at a time.
func (m *MultilineEntry) OnChanged(f func(*MultilineEntry)) {
m.onChanged = f
}
//export pkguiDoMultilineEntryOnChanged
func pkguiDoMultilineEntryOnChanged(ee *C.uiMultilineEntry, data unsafe.Pointer) {
m := ControlFromLibui(uintptr(unsafe.Pointer(ee))).(*MultilineEntry)
if m.onChanged != nil {
m.onChanged(m)
}
}
// ReadOnly returns whether the MultilineEntry can be changed.
func (m *MultilineEntry) ReadOnly() bool {
return tobool(C.uiMultilineEntryReadOnly(m.e))
}
// SetReadOnly sets whether the MultilineEntry can be changed.
func (m *MultilineEntry) SetReadOnly(ro bool) {
C.uiMultilineEntrySetReadOnly(m.e, frombool(ro))
}