From 67ff2fa8550f95d0aab63c96bbb4fa753a1f1799 Mon Sep 17 00:00:00 2001
From: Pietro Gagliardi <pietro10@mac.com>
Date: Mon, 24 Oct 2016 23:35:18 -0400
Subject: [PATCH] Laid out the interface for user window drags.

---
 test/page15.c | 43 ++++++++++---------------------------------
 ui.h          | 18 ++++++++++++++++++
 2 files changed, 28 insertions(+), 33 deletions(-)

diff --git a/test/page15.c b/test/page15.c
index 1b3facb4..99e402e3 100644
--- a/test/page15.c
+++ b/test/page15.c
@@ -101,41 +101,18 @@ static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *
 	if (e->Down != 1)
 		return;
 	if (ta.move.in || ta.alsomove.in) {
-		// TODO
-		return;
-	}
-	if (ta.leftresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.topresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.rightresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.bottomresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.topleftresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.toprightresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.bottomleftresize.in) {
-		// TODO
-		return;
-	}
-	if (ta.bottomrightresize.in) {
-		// TODO
+		uiAreaBeginUserWindowMove(area);
 		return;
 	}
+#define resize(cond, edge) if (cond) { uiAreaBeginUserWindowResize(area, edge); return; }
+	resize(ta.leftresize.in, uiWindowResizeEdgeLeft)
+	resize(ta.topresize.in, uiWindowResizeEdgeTop)
+	resize((ta.rightresize.in, uiWindowResizeEdgeRight)
+	resize(ta.bottomresize.in, uiWindowResizeEdgeBottom)
+	resize(ta.topleftresize.in, uiWindowResizeEdgeTopLeft)
+	resize(ta.toprightresize.in, uiWindowResizeEdgeTopRight)
+	resize(ta.bottomleftresize.in, uiWindowResizeEdgeBottomLeft)
+	resize(ta.bottomrightresize.in, uiWindowResizeEdgeBottomRight)
 	if (ta.close.in) {
 		// TODO
 		return;
diff --git a/ui.h b/ui.h
index 5cf01b50..9dbc32b6 100644
--- a/ui.h
+++ b/ui.h
@@ -289,6 +289,20 @@ struct uiAreaHandler {
 	int (*KeyEvent)(uiAreaHandler *, uiArea *, uiAreaKeyEvent *);
 };
 
+// TODO RTL layouts?
+// TODO reconcile edge and corner naming
+_UI_ENUM(uiWindowResizeEdge) {
+	uiWindowResizeEdgeLeft,
+	uiWindowResizeEdgeTop,
+	uiWindowResizeEdgeRight,
+	uiWindowResizeEdgeBottom,
+	uiWindowResizeEdgeTopLeft,
+	uiWindowResizeEdgeTopRight,
+	uiWindowResizeEdgeBottomLeft,
+	uiWindowResizeEdgeBottomRight,
+	// TODO have one for keyboard resizes?
+};
+
 #define uiArea(this) ((uiArea *) (this))
 // TODO give a better name
 // TODO document the types of width and height
@@ -296,6 +310,10 @@ _UI_EXTERN void uiAreaSetSize(uiArea *a, int width, int height);
 // TODO uiAreaQueueRedraw()
 _UI_EXTERN void uiAreaQueueRedrawAll(uiArea *a);
 _UI_EXTERN void uiAreaScrollTo(uiArea *a, double x, double y, double width, double height);
+// TODO document these can only be called within Mouse() handlers
+// TODO should these be allowed on scrolling areas?
+_UI_EXTERN void uiAreaBeginUserWindowMove(uiArea *a);
+_UI_EXTERN void uiAreaBeginUserWindowResize(uiArea *a, uiWindowResizeEdge edge);
 _UI_EXTERN uiArea *uiNewArea(uiAreaHandler *ah);
 _UI_EXTERN uiArea *uiNewScrollingArea(uiAreaHandler *ah, int width, int height);