126 lines
2.7 KiB
Go
126 lines
2.7 KiB
Go
// 12 december 2015
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// TODO typing in entry in OS X crashes libui
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// I've had similar issues with checkboxes on libui
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// something's wrong with NSMapTable
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package ui
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import (
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"unsafe"
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)
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// #include "ui.h"
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// extern void doEntryOnChanged(uiEntry *, void *);
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// static inline void realuiEntryOnChanged(uiEntry *b)
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// {
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// uiEntryOnChanged(b, doEntryOnChanged, NULL);
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// }
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import "C"
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// no need to lock this; only the GUI thread can access it
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var entries = make(map[*C.uiEntry]*Entry)
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// Entry is a Control that represents a space that the user can
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// type a single line of text into.
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type Entry struct {
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c *C.uiControl
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e *C.uiEntry
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onChanged func(*Entry)
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}
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// NewEntry creates a new Entry.
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func NewEntry() *Entry {
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e := new(Entry)
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e.e = C.uiNewEntry()
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e.c = (*C.uiControl)(unsafe.Pointer(e.e))
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C.realuiEntryOnChanged(e.e)
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entries[e.e] = e
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return e
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}
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// Destroy destroys the Entry.
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func (e *Entry) Destroy() {
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delete(entries, e.e)
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C.uiControlDestroy(e.c)
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}
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// LibuiControl returns the libui uiControl pointer that backs
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// the Window. This is only used by package ui itself and should
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// not be called by programs.
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func (e *Entry) LibuiControl() uintptr {
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return uintptr(unsafe.Pointer(e.c))
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}
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// Handle returns the OS-level handle associated with this Entry.
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// On Windows this is an HWND of a standard Windows API EDIT
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// class (as provided by Common Controls version 6).
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// On GTK+ this is a pointer to a GtkEntry.
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// On OS X this is a pointer to a NSTextField.
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func (e *Entry) Handle() uintptr {
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return uintptr(C.uiControlHandle(e.c))
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}
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// Show shows the Entry.
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func (e *Entry) Show() {
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C.uiControlShow(e.c)
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}
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// Hide hides the Entry.
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func (e *Entry) Hide() {
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C.uiControlHide(e.c)
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}
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// Enable enables the Entry.
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func (e *Entry) Enable() {
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C.uiControlEnable(e.c)
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}
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// Disable disables the Entry.
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func (e *Entry) Disable() {
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C.uiControlDisable(e.c)
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}
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// Text returns the Entry's text.
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func (e *Entry) Text() string {
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ctext := C.uiEntryText(e.e)
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text := C.GoString(ctext)
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C.uiFreeText(ctext)
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return text
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}
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// SetText sets the Entry's text to text.
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func (e *Entry) SetText(text string) {
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ctext := C.CString(text)
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C.uiEntrySetText(e.e, ctext)
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freestr(ctext)
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}
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// OnChanged registers f to be run when the user makes a change to
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// the Entry. Only one function can be registered at a time.
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func (e *Entry) OnChanged(f func(*Entry)) {
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e.onChanged = f
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}
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//export doEntryOnChanged
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func doEntryOnChanged(ee *C.uiEntry, data unsafe.Pointer) {
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e := entries[ee]
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if e.onChanged != nil {
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e.onChanged(e)
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}
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}
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// ReadOnly returns whether the Entry can be changed.
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func (e *Entry) ReadOnly() bool {
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return tobool(C.uiEntryReadOnly(e.e))
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}
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// SetReadOnly sets whether the Entry can be changed.
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func (e *Entry) SetReadOnly(ro bool) {
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C.uiEntrySetReadOnly(e.e, frombool(ro))
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}
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