Extended Display.SetIcon to allow multiple icons.

Added Display parameter to display events.

display.go

@@ -115,8 +115,20 @@ func (d *Display) SetAsTarget() {
 	C.al_set_target_backbuffer(d.display)
 }
 
-func (d *Display) SetIcon(i *Bitmap) {
+func (d *Display) SetIcon(i ...*Bitmap) {
-	C.al_set_display_icon(d.display, i.bitmap)
+	if len(i) == 0 {
+		return
+	}
+	if len(i) == 1 {
+		C.al_set_display_icon(d.display, i[0].bitmap)
+		return
+	}
+
+	icons := make([]*C.ALLEGRO_BITMAP, len(i))
+	for j := range icons {
+		icons[j] = i[j].bitmap
+	}
+	C.al_set_display_icons(d.display, C.int(len(icons)), &(icons[0]))
 }
 
 func (d *Display) SetMouseCursor(c MouseCursor) {

event.go

@@ -21,7 +21,8 @@ import (
 )
 
 type EventQueue struct {
-	queue *C.ALLEGRO_EVENT_QUEUE
+	queue    *C.ALLEGRO_EVENT_QUEUE
+	displays map[*C.ALLEGRO_DISPLAY]*Display
 }
 
 type Event interface {
@@ -37,16 +38,33 @@ func (eb EventBase) Stamp() float64 {
 }
 
 type DisplayCloseEvent struct {
-	EventBase
+	DisplayEvent
 }
 
-type DisplayResizeEvent struct {
+type DisplayConnectedEvent struct {
-	EventBase
+	DisplayEvent
-	X, Y   int
-	Width  int
-	Height int
 }
 
+type DisplayDisconnectedEvent struct {
+	DisplayEvent
+}
+
+type DisplayEvent struct {
+	EventBase
+	Display *Display
+}
+
+type DisplayFoundEvent struct {
+	DisplayEvent
+}
+
+type DisplayHaltDrawingEvent struct {
+	DisplayEvent
+}
+
+type DisplayLostEvent struct {
+	DisplayEvent
+}
 type DisplayOrientation int
 
 const (
@@ -78,10 +96,29 @@ func toDisplayOrientation(o C.int) DisplayOrientation {
 }
 
 type DisplayOrientationEvent struct {
-	EventBase
+	DisplayEvent
 	Orientation DisplayOrientation
 }
 
+type DisplayResizeEvent struct {
+	DisplayEvent
+	X, Y   int
+	Width  int
+	Height int
+}
+
+type DisplayResumeDrawingEvent struct {
+	DisplayEvent
+}
+
+type DisplaySwitchInEvent struct {
+	DisplayEvent
+}
+
+type DisplaySwitchOutEvent struct {
+	DisplayEvent
+}
+
 type KeyEvent struct {
 	EventBase
 	KeyCode Key
@@ -125,6 +162,7 @@ type MouseEvent struct {
 	Z, W    int
 	Display *Display
 }
+
 type MouseLeaveEvent struct {
 	MouseEvent
 }
@@ -155,7 +193,7 @@ func NewEventQueue() (*EventQueue, error) {
 	if q == nil {
 		return nil, errors.New("unable to create event queue")
 	}
-	return &EventQueue{q}, nil
+	return &EventQueue{q, map[*C.ALLEGRO_DISPLAY]*Display{}}, nil
 }
 
 func (eq *EventQueue) register(source *C.ALLEGRO_EVENT_SOURCE) {
@@ -164,6 +202,7 @@ func (eq *EventQueue) register(source *C.ALLEGRO_EVENT_SOURCE) {
 
 func (eq *EventQueue) RegisterDisplay(d *Display) {
 	eq.register(C.al_get_display_event_source(d.display))
+	eq.displays[d.display] = d
 }
 
 func (eq *EventQueue) RegisterMouse() {
@@ -189,15 +228,40 @@ func (eq *EventQueue) mapEvent(e *C.ALLEGRO_EVENT) Event {
 	case C.ALLEGRO_EVENT_AUDIO_RECORDER_FRAGMENT:
 		recorder := (*C.ALLEGRO_AUDIO_RECORDER_EVENT)(unsafe.Pointer(e))
 		return &RecorderFragmentEvent{eb, unsafe.Pointer(recorder.buffer), int(recorder.samples)}
+	case C.ALLEGRO_EVENT_DISPLAY_CONNECTED:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayConnectedEvent{DisplayEvent{eb, eq.displays[display.source]}}
 	case C.ALLEGRO_EVENT_DISPLAY_CLOSE:
-		return &DisplayCloseEvent{eb}
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayCloseEvent{DisplayEvent{eb, eq.displays[display.source]}}
+	case C.ALLEGRO_EVENT_DISPLAY_DISCONNECTED:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayDisconnectedEvent{DisplayEvent{eb, eq.displays[display.source]}}
+	case C.ALLEGRO_EVENT_DISPLAY_FOUND:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayFoundEvent{DisplayEvent{eb, eq.displays[display.source]}}
+	case C.ALLEGRO_EVENT_DISPLAY_HALT_DRAWING:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayHaltDrawingEvent{DisplayEvent{eb, eq.displays[display.source]}}
+	case C.ALLEGRO_EVENT_DISPLAY_LOST:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayLostEvent{DisplayEvent{eb, eq.displays[display.source]}}
 	case C.ALLEGRO_EVENT_DISPLAY_ORIENTATION:
 		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
-		return &DisplayOrientationEvent{eb, toDisplayOrientation(display.orientation)}
+		return &DisplayOrientationEvent{DisplayEvent{eb, eq.displays[display.source]}, toDisplayOrientation(display.orientation)}
 	case C.ALLEGRO_EVENT_DISPLAY_RESIZE:
 		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
 		C.al_acknowledge_resize(display.source)
-		return &DisplayResizeEvent{eb, int(display.x), int(display.y), int(display.width), int(display.height)}
+		return &DisplayResizeEvent{DisplayEvent{eb, eq.displays[display.source]}, int(display.x), int(display.y), int(display.width), int(display.height)}
+	case C.ALLEGRO_EVENT_DISPLAY_RESUME_DRAWING:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayResumeDrawingEvent{DisplayEvent{eb, eq.displays[display.source]}}
+	case C.ALLEGRO_EVENT_DISPLAY_SWITCH_IN:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplaySwitchInEvent{DisplayEvent{eb, eq.displays[display.source]}}
+	case C.ALLEGRO_EVENT_DISPLAY_SWITCH_OUT:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplaySwitchOutEvent{DisplayEvent{eb, eq.displays[display.source]}}
 	case C.ALLEGRO_EVENT_MOUSE_AXES:
 		mouse := (*C.ALLEGRO_MOUSE_EVENT)(unsafe.Pointer(e))
 		return &MouseMoveEvent{MouseEvent{eb, int(mouse.x), int(mouse.y), int(mouse.z), int(mouse.w), nil}, int(mouse.dx), int(mouse.dy), int(mouse.dz), int(mouse.dw), float32(mouse.pressure)}

mouse.go

@@ -52,3 +52,15 @@ func IsAnyMouseButtonDown(buttons ...MouseButton) bool {
 	}
 	return false
 }
+
+func MousePosition() (int, int) {
+	var state C.ALLEGRO_MOUSE_STATE
+	C.al_get_mouse_state(&state)
+	return int(state.x), int(state.y)
+}
+
+func MousePositionScreen() (int, int, bool) {
+	var x, y C.int
+	var result = C.al_get_mouse_cursor_position(&x, &y)
+	return int(x), int(y), bool(result)
+}