From e8ff8c35fe8ef58805423ae5dbbb22d316785c77 Mon Sep 17 00:00:00 2001
From: Sander Schobers <sander@schobers.eu>
Date: Mon, 12 Feb 2018 19:49:10 +0100
Subject: [PATCH] Added Maximized flag to new display options. Added display
 resize & orientation event.

---
 allegro5/display.go |  4 ++++
 allegro5/event.go   | 50 ++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/allegro5/display.go b/allegro5/display.go
index 3f73ff2..cd2c5cb 100644
--- a/allegro5/display.go
+++ b/allegro5/display.go
@@ -19,6 +19,7 @@ type NewDisplayOptions struct {
 	Fullscreen bool
 	Resizable  bool
 	Windowed   bool
+	Maximized  bool
 }
 
 // NewDisplay creates a display
@@ -33,6 +34,9 @@ func NewDisplay(options NewDisplayOptions) (*Display, error) {
 	}
 	if options.Resizable {
 		flags |= C.ALLEGRO_RESIZABLE
+		if options.Maximized {
+			flags |= C.ALLEGRO_MAXIMIZED
+		}
 	}
 	C.al_set_new_display_flags(flags)
 	d := C.al_create_display(C.int(options.Width), C.int(options.Height))
diff --git a/allegro5/event.go b/allegro5/event.go
index 8aaf11f..8501c13 100644
--- a/allegro5/event.go
+++ b/allegro5/event.go
@@ -28,6 +28,48 @@ type DisplayCloseEvent struct {
 	EventBase
 }
 
+type DisplayResizeEvent struct {
+	EventBase
+	X, Y   int
+	Width  int
+	Height int
+}
+
+type DisplayOrientation int
+
+const (
+	DisplayOrientation0Degrees DisplayOrientation = iota
+	DisplayOrientation90Degrees
+	DisplayOrientation180Degrees
+	DisplayOrientation270Degrees
+	DisplayOrientationFaceUp
+	DisplayOrientationFaceDown
+)
+
+func toDisplayOrientation(o C.int) DisplayOrientation {
+	switch o {
+	case C.ALLEGRO_DISPLAY_ORIENTATION_0_DEGREES:
+		return DisplayOrientation0Degrees
+	case C.ALLEGRO_DISPLAY_ORIENTATION_90_DEGREES:
+		return DisplayOrientation90Degrees
+	case C.ALLEGRO_DISPLAY_ORIENTATION_180_DEGREES:
+		return DisplayOrientation180Degrees
+	case C.ALLEGRO_DISPLAY_ORIENTATION_270_DEGREES:
+		return DisplayOrientation270Degrees
+	case C.ALLEGRO_DISPLAY_ORIENTATION_FACE_UP:
+		return DisplayOrientationFaceUp
+	case C.ALLEGRO_DISPLAY_ORIENTATION_FACE_DOWN:
+		return DisplayOrientationFaceDown
+	default:
+		panic("not supported")
+	}
+}
+
+type DisplayOrientationEvent struct {
+	EventBase
+	Orientation DisplayOrientation
+}
+
 type KeyEvent struct {
 	EventBase
 	KeyCode int
@@ -104,7 +146,13 @@ func (eq *EventQueue) mapEvent(e *C.ALLEGRO_EVENT) Event {
 	eb := EventBase{float64(any.timestamp)}
 	switch any._type {
 	case C.ALLEGRO_EVENT_DISPLAY_CLOSE:
-		return &DisplayCloseEvent{EventBase{float64(any.timestamp)}}
+		return &DisplayCloseEvent{eb}
+	case C.ALLEGRO_EVENT_DISPLAY_ORIENTATION:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayOrientationEvent{eb, toDisplayOrientation(display.orientation)}
+	case C.ALLEGRO_EVENT_DISPLAY_RESIZE:
+		display := (*C.ALLEGRO_DISPLAY_EVENT)(unsafe.Pointer(e))
+		return &DisplayResizeEvent{eb, int(display.x), int(display.y), int(display.width), int(display.height)}
 	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)}