Added a test of mouse events in a scrolled uiArea. Removed some dead code from the GTK+ uiArea. Now to make the changes to the Windows and OS X backends!

test/GNUfiles.mk

@@ -12,6 +12,7 @@ CFILES += \
 	test/page6.c \
 	test/page7.c \
 	test/page7a.c \
+	test/page7b.c \
 	test/spaced.c
 
 HFILES += \

test/page7.c

@@ -5,11 +5,20 @@ uiBox *makePage7(void)
 {
 	uiBox *page7;
 	uiGroup *group;
+	uiBox *box2;
 
 	page7 = newHorizontalBox();
 
 	group = makePage7a();
 	uiBoxAppend(page7, uiControl(group), 1);
 
+	box2 = newVerticalBox();
+	uiBoxAppend(page7, uiControl(box2), 1);
+
+	group = makePage7b();
+	uiBoxAppend(box2, uiControl(group), 1);
+
+	uiBoxAppend(box2, uiControl(uiNewLabel("")), 1);
+
 	return page7;
 }

test/page7b.c

@@ -0,0 +1,68 @@
+// 13 october 2015
+#include "test.h"
+
+static uiArea *area;
+static uiCheckbox *label;
+
+struct handler {
+	uiAreaHandler ah;
+};
+
+static struct handler handler;
+
+static void handlerDraw(uiAreaHandler *a, uiArea *area, uiAreaDrawParams *p)
+{
+	// do nothing
+}
+
+static void handlerMouseEvent(uiAreaHandler *a, uiArea *area, uiAreaMouseEvent *e)
+{
+	char pos[128];
+
+	snprintf(pos, 127, "X %g Y %g", e->X, e->Y);
+	uiCheckboxSetText(label, pos);
+}
+
+static void handlerMouseCrossed(uiAreaHandler *ah, uiArea *a, int left)
+{
+	uiCheckboxSetChecked(label, !left);
+}
+
+static void handlerDragBroken(uiAreaHandler *ah, uiArea *a)
+{
+	// do nothing
+}
+
+static int handlerKeyEvent(uiAreaHandler *ah, uiArea *a, uiAreaKeyEvent *e)
+{
+	if (e->Key == 'h' && !e->Up) {
+		// TODO hide the widget momentarily on the h key
+		return 1;
+	}
+	return 0;
+}
+
+uiGroup *makePage7b(void)
+{
+	uiGroup *group;
+	uiBox *box;
+
+	handler.ah.Draw = handlerDraw;
+	handler.ah.MouseEvent = handlerMouseEvent;
+	handler.ah.MouseCrossed = handlerMouseCrossed;
+	handler.ah.DragBroken = handlerDragBroken;
+	handler.ah.KeyEvent = handlerKeyEvent;
+
+	group = newGroup("Scrolling Mouse Test");
+
+	box = newVerticalBox();
+	uiGroupSetChild(group, uiControl(box));
+
+	area = uiNewScrollingArea((uiAreaHandler *) (&handler), 5000, 5000);
+	uiBoxAppend(box, uiControl(area), 1);
+
+	label = uiNewCheckbox("");
+	uiBoxAppend(box, uiControl(label), 0);
+
+	return group;
+}

test/test.h

@@ -60,5 +60,8 @@ extern uiBox *makePage7(void);
 // page7a.c
 extern uiGroup *makePage7a(void);
 
+// page7b.c
+extern uiGroup *makePage7b(void);
+
 // page8.c
 extern uiBox *makePage8(void);

unix/area.c

@@ -64,16 +64,6 @@ static void areaWidget_init(areaWidget *aw)
 		GDK_ENTER_NOTIFY_MASK |
 		GDK_LEAVE_NOTIFY_MASK);
 
-	// TODO are these still needed?
-/*
-	// for scrolling
-	// TODO do we need GDK_TOUCH_MASK?
-	gtk_widget_add_events(GTK_WIDGET(aw),
-		GDK_SCROLL_MASK |
-		GDK_TOUCH_MASK |
-		GDK_SMOOTH_SCROLL_MASK);
-*/
-
 	gtk_widget_set_can_focus(GTK_WIDGET(aw), TRUE);
 
 	clickCounterReset(&(aw->cc));