Added Group.
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// 12 december 2015
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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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import "C"
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// Group is a Control that holds another Control and wraps it around
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// a labelled box (though some systems make this box invisible).
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// You can use this to group related controls together.
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type Group struct {
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c *C.uiControl
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g *C.uiGroup
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child Control
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}
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// NewGroup creates a new Group.
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func NewGroup(title string) *Group {
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g := new(Group)
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ctitle := C.CString(title)
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g.g = C.uiNewGroup(ctitle)
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g.c = (*C.uiControl)(unsafe.Pointer(g.g))
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freestr(ctitle)
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return g
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}
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// Destroy destroys the Group. If the Group has a child,
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// Destroy calls Destroy on that as well.
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func (g *Group) Destroy() {
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if g.child != nil {
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c := g.child
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g.SetChild(nil)
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c.Destroy()
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}
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C.uiControlDestroy(g.c)
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}
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// LibuiControl returns the libui uiControl pointer that backs
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// the Group. This is only used by package ui itself and should
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// not be called by programs.
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func (g *Group) LibuiControl() uintptr {
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return uintptr(unsafe.Pointer(g.c))
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}
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// Handle returns the OS-level handle associated with this Group.
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// On Windows this is an HWND of a standard Windows API BUTTON
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// class (as provided by Common Controls version 6).
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// On GTK+ this is a pointer to a GtkFrame.
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// On OS X this is a pointer to a NSBox.
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func (g *Group) Handle() uintptr {
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return uintptr(C.uiControlHandle(g.c))
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}
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// Show shows the Group. It uses the OS conception of "presenting"
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// the Group, whatever that may be on a given OS.
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func (g *Group) Show() {
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C.uiControlShow(g.c)
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}
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// Hide hides the Group.
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func (g *Group) Hide() {
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C.uiControlHide(g.c)
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}
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// Enable enables the Group.
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func (g *Group) Enable() {
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C.uiControlEnable(g.c)
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}
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// Disable disables the Group.
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func (g *Group) Disable() {
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C.uiControlDisable(g.c)
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}
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// Title returns the Group's title.
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func (g *Group) Title() string {
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ctitle := C.uiGroupTitle(g.g)
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title := C.GoString(ctitle)
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C.uiFreeText(ctitle)
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return title
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}
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// SetTitle sets the Group's title to title.
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func (g *Group) SetTitle(title string) {
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ctitle := C.CString(title)
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C.uiGroupSetTitle(g.g, ctitle)
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freestr(ctitle)
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}
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// SetChild sets the Group's child to child. If child is nil, the Group
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// will not have a child.
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func (g *Group) SetChild(child Control) {
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g.child = child
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c := (*C.uiControl)(nil)
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if g.child != nil {
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c = touiControl(g.child.LibuiControl())
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}
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C.uiGroupSetChild(g.g, c)
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}
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// Margined returns whether the Group has margins around its child.
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func (g *Group) Margined() bool {
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return tobool(C.uiGroupMargined(g.g))
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}
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// SetMargined controls whether the Group has margins around its
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// child. The size of the margins are determined by the OS and its
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// best practices.
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func (g *Group) SetMargined(margined bool) {
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C.uiGroupSetMargined(g.g, frombool(margined))
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}
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@ -11,9 +11,14 @@ func TestIt(t *testing.T) {
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Quit()
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return true
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})
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s := NewSlider(0, 100)
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s := NewGroup("Group")
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w.SetChild(s)
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w.SetMargined(true)
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b := NewButton("Click Me")
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b.OnClicked(func(*Button) {
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s.SetMargined(!s.Margined())
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})
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s.SetChild(b)
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w.Show()
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})
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if err != nil {
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