func FrameFunc() int {
if input.NewKey(input.K_ESCAPE).State() {
return 1
}
return 0
}
func (g *GUI) Update(dt float64) int {
// Update the mouse variables
g.mouse.Pos()
g.lPressed = input.NewKey(input.K_LBUTTON).Down()
g.lReleased = input.NewKey(input.K_LBUTTON).Up()
g.rPressed = input.NewKey(input.K_RBUTTON).Down()
g.rReleased = input.NewKey(input.K_RBUTTON).Up()
g.mouse.WheelMovement()
// Update all controls
for e := g.ctrls.Front(); e != nil; e = e.Next() {
e.Value.(*GUIObject).Update(dt)
}
// Handle Enter/Leave
if g.enterLeave > 0 {
done := true
for e := g.ctrls.Front(); e != nil; e = e.Next() {
if !e.Value.(*GUIObject).IsDone() {
done = false
break
}
}
if !done {
return 0
} else {
if g.enterLeave == 1 {
return -1
} else {
g.enterLeave = 0
}
}
}
// Handle keys
key := input.GetKey()
if ((g.navMode&GUI_LEFTRIGHT) == GUI_LEFTRIGHT && key == input.K_LEFT) ||
((g.navMode&GUI_UPDOWN) == GUI_UPDOWN && key == input.K_UP) {
ctrl := g.ctrlFocus
if ctrl == nil {
e := g.ctrls.Front()
if e == nil {
return 0
}
ctrl = e.Value.(*GUIObject)
if ctrl == nil {
return 0
}
}
for e := elementById(ctrl.Id, g.ctrls).Prev(); ; e = e.Prev() {
if e == nil && (g.navMode&GUI_CYCLED) == GUI_CYCLED || g.ctrlFocus == nil {
ctrl = g.ctrls.Back().Value.(*GUIObject)
} else {
ctrl = e.Value.(*GUIObject)
}
if ctrl == g.ctrlFocus {
break
}
if ctrl.Static == false || ctrl.Visible == true || ctrl.Enabled == true {
break
}
}
if ctrl != g.ctrlFocus {
if g.ctrlFocus != nil {
g.ctrlFocus.Focus(false)
}
if ctrl != nil {
ctrl.Focus(true)
}
g.ctrlFocus = ctrl
}
} else if ((g.navMode&GUI_LEFTRIGHT) == GUI_LEFTRIGHT && key == input.K_RIGHT) ||
((g.navMode&GUI_UPDOWN) == GUI_UPDOWN && key == input.K_DOWN) {
ctrl := g.ctrlFocus
if ctrl == nil {
e := g.ctrls.Back()
if e == nil {
return 0
}
ctrl = e.Value.(*GUIObject)
if ctrl == nil {
return 0
}
}
for e := elementById(ctrl.Id, g.ctrls).Next(); ; e = e.Next() {
if e == nil && (g.navMode&GUI_CYCLED) == GUI_CYCLED || g.ctrlFocus == nil {
ctrl = g.ctrls.Front().Value.(*GUIObject)
} else {
ctrl = e.Value.(*GUIObject)
}
if ctrl == g.ctrlFocus {
break
}
if ctrl.Static == false || ctrl.Visible == true || ctrl.Enabled == true {
break
}
}
if ctrl != g.ctrlFocus {
if g.ctrlFocus != nil {
g.ctrlFocus.Focus(false)
}
if ctrl != nil {
ctrl.Focus(true)
}
g.ctrlFocus = ctrl
}
} else if g.ctrlFocus != nil && key > 0 && key != input.K_LBUTTON && key != input.K_RBUTTON {
if g.ctrlFocus.KeyClick(key, input.GetChar()) {
return g.ctrlFocus.Id
}
}
// Handle mouse
lDown := input.NewKey(input.K_LBUTTON).State()
rDown := input.NewKey(input.K_RBUTTON).State()
if g.ctrlLock != nil {
ctrl := g.ctrlLock
if !lDown && !rDown {
g.ctrlLock = nil
}
if g.process(ctrl) {
return ctrl.Id
}
} else {
for e := g.ctrls.Front(); e != nil; e = e.Next() {
ctrl := e.Value.(*GUIObject)
if ctrl.Rect.TestPoint(g.mouse.X, g.mouse.Y) && ctrl.Enabled {
if g.ctrlOver != ctrl {
if g.ctrlOver != nil {
g.ctrlOver.MouseOver(false)
}
ctrl.MouseOver(true)
g.ctrlOver = ctrl
}
if g.process(ctrl) {
return ctrl.Id
} else {
return 0
}
}
}
if g.ctrlOver != nil {
g.ctrlOver.MouseOver(false)
g.ctrlOver = nil
}
}
return 0
}
func (h *HGE) Input_GetKeyName(key int) string {
return input.NewKey(key).Name()
}
func (h *HGE) Input_GetKeyState(key int) bool {
return input.NewKey(key).State()
}
func (h *HGE) Input_KeyUp(key int) bool {
return input.NewKey(key).Up()
}
func (h *HGE) Input_KeyDown(key int) bool {
return input.NewKey(key).Down()
}