Re-added uiControlContainerShow() and uiControlContainerHide(). This is needed on Windows for uiTab.

TODO.md

@@ -38,3 +38,4 @@ notes to self
 - note that if a menu is requested on systems with menubars on windows but no menus are defined, the result is a blank menubar, with whatever that means left up to the OS to decide
 - note that type mixing == undefined behavior
 - note that handling of multiple consecutive separators in menus, leading separators in menus, and trailing separators in menus are all implementation-defined
+- note that ContainerVisible() returns true if both user and container not hidden; container use only

redo/ui.idl

@@ -50,9 +50,11 @@ interface Control {
 	func QueueResize(void);
 	func GetSizing(d *Sizing);
 	func ComputeChildSize(x *intmax_t, y *intmax_t, width *intmax_t, height *intmax_t, d *Sizing);
-	func Visible(void) int;
+	func ContainerVisible(void) int;
 	func Show(void);
 	func Hide(void);
+	func ContainerShow(void);
+	func ContainerHide(void);
 	func Enable(void);
 	func Disable(void);
 	func ContainerEnable(void);

redo/windows/control.c

@@ -8,7 +8,8 @@ struct singleHWND {
 	void (*onDestroy)(void *);
 	void *onDestroyData;
 	uiContainer *parent;
-	int hidden;
+	int userHidden;
+	int containerHidden;
 	int userDisabled;
 	int containerDisabled;
 };
@@ -76,19 +77,20 @@ static void singleComputeChildSize(uiControl *c, intmax_t *x, intmax_t *y, intma
 	complain("attempt to call uiControlComputeChildSize() on a non-container");
 }
 
-static int singleVisible(uiControl *c)
+static int singleContainerVisible(uiControl *c)
 {
 	struct singleHWND *s = (struct singleHWND *) (c->Internal);
 
-	return !s->hidden;
+	return !s->userHidden && !s->containerHidden;
 }
 
 static void singleShow(uiControl *c)
 {
 	struct singleHWND *s = (struct singleHWND *) (c->Internal);
 
-	ShowWindow(s->hwnd, SW_SHOW);
-	s->hidden = 0;
+	s->userHidden = 0;
+	if (!s->containerHidden)
+		ShowWindow(s->hwnd, SW_SHOW);
 	if (s->parent != NULL)
 		uiContainerUpdate(s->parent);
 }
@@ -97,8 +99,29 @@ static void singleHide(uiControl *c)
 {
 	struct singleHWND *s = (struct singleHWND *) (c->Internal);
 
+	s->userHidden = 1;
+	ShowWindow(s->hwnd, SW_HIDE);
+	if (s->parent != NULL)
+		uiContainerUpdate(s->parent);
+}
+
+static void singleContainerShow(uiControl *c)
+{
+	struct singleHWND *s = (struct singleHWND *) (c->Internal);
+
+	s->containerHidden = 0;
+	if (!s->userHidden)
+		ShowWindow(s->hwnd, SW_SHOW);
+	if (s->parent != NULL)
+		uiContainerUpdate(s->parent);
+}
+
+static void singleContainerHide(uiControl *c)
+{
+	struct singleHWND *s = (struct singleHWND *) (c->Internal);
+
+	s->containerHidden = 1;
 	ShowWindow(s->hwnd, SW_HIDE);
-	s->hidden = 1;
 	if (s->parent != NULL)
 		uiContainerUpdate(s->parent);
 }
@@ -219,9 +242,11 @@ void uiWindowsMakeControl(uiControl *c, uiWindowsMakeControlParams *p)
 	uiControl(c)->QueueResize = singleQueueResize;
 	uiControl(c)->GetSizing = singleGetSizing;
 	uiControl(c)->ComputeChildSize = singleComputeChildSize;
-	uiControl(c)->Visible = singleVisible;
+	uiControl(c)->ContainerVisible = singleContainerVisible;
 	uiControl(c)->Show = singleShow;
 	uiControl(c)->Hide = singleHide;
+	uiControl(c)->ContainerShow = singleContainerShow;
+	uiControl(c)->ContainerHide = singleContainerHide;
 	uiControl(c)->Enable = singleEnable;
 	uiControl(c)->Disable = singleDisable;
 	uiControl(c)->ContainerEnable = singleContainerEnable;

redo/windows/window.c

@@ -8,7 +8,6 @@ struct window {
 	HWND hwnd;
 	HMENU menubar;
 	uiControl *child;
-	int hidden;
 	BOOL shownOnce;
 	int (*onClosing)(uiWindow *, void *);
 	void *onClosingData;
@@ -156,11 +155,9 @@ static void windowComputeChildSize(uiControl *c, intmax_t *x, intmax_t *y, intma
 	}
 }
 
-static int windowVisible(uiControl *c)
+static int windowContainerVisible(uiControl *c)
 {
-	struct window *w = (struct window *) c;
-
-	return !w->hidden;
+	complain("attempt to get container visibility state of uiWindow %p", c);
 }
 
 static void windowShow(uiControl *c)
@@ -169,7 +166,6 @@ static void windowShow(uiControl *c)
 
 	if (w->shownOnce) {
 		ShowWindow(w->hwnd, SW_SHOW);
-		w->hidden = 0;
 		return;
 	}
 	w->shownOnce = TRUE;
@@ -178,7 +174,6 @@ static void windowShow(uiControl *c)
 	ShowWindow(w->hwnd, nCmdShow);
 	if (UpdateWindow(w->hwnd) == 0)
 		logLastError("error calling UpdateWindow() after showing uiWindow for the first time in windowShow()");
-	w->hidden = 0;
 }
 
 static void windowHide(uiControl *c)
@@ -186,7 +181,16 @@ static void windowHide(uiControl *c)
 	struct window *w = (struct window *) c;
 
 	ShowWindow(w->hwnd, SW_HIDE);
-	w->hidden = 1;
+}
+
+static void windowContainerShow(uiControl *c)
+{
+	complain("attempt to container show uiWindow %p", c);
+}
+
+static void windowContainerHide(uiControl *c)
+{
+	complain("attempt to container hide uiWindow %p", c);
 }
 
 static void windowEnable(uiControl *c)
@@ -357,9 +361,11 @@ uiWindow *uiNewWindow(const char *title, int width, int height, int hasMenubar)
 	uiControl(w)->QueueResize = windowQueueResize
 	uiControl(w)->GetSizing = windowGetSizing;
 	uiControl(w)->ComputeChildSize = windowComputeChildSize;
-	uiControl(w)->Visible = windowVisible;
+	uiControl(w)->ContainerVisible = windowContainerVisible;
 	uiControl(w)->Show = windowShow;
 	uiControl(w)->Hide = windowHide;
+	uiControl(w)->ContainerShow = windowContainerShow;
+	uiControl(w)->ContainerHide = windowContainerHide;
 	uiControl(w)->Enable = windowEnable;
 	uiControl(w)->Disable = windowDisable;
 	uiControl(w)->ContainerEnable = windowContainerEnable;