Add new API functions to get and set the visibility of table headers.

darwin/table.m

@@ -14,8 +14,10 @@ - (id)initWithModel:(uiTableModel *)model;
 @interface uiprivTableView : NSTableView {
 	uiTable *uiprivT;
 	uiTableModel *uiprivM;
+	NSTableHeaderView *headerViewRef;
 }
 - (id)initWithFrame:(NSRect)r uiprivT:(uiTable *)t uiprivM:(uiTableModel *)m;
+- (void)restoreHeaderView;
 @end
 
 @implementation uiprivTableView
@@ -26,10 +28,16 @@ - (id)initWithFrame:(NSRect)r uiprivT:(uiTable *)t uiprivM:(uiTableModel *)m
 	if (self) {
 		self->uiprivT = t;
 		self->uiprivM = m;
+		self->headerViewRef = [self headerView];
 	}
 	return self;
 }
 
+- (void)restoreHeaderView
+{
+	[self setHeaderView:self->headerViewRef];
+}
+
 // TODO is this correct for overflow scrolling?
 static void setBackgroundColor(uiprivTableView *t, NSTableRowView *rv, NSInteger row)
 {
@@ -170,6 +178,19 @@ static void uiTableDestroy(uiControl *c)
 	uiFreeControl(uiControl(t));
 }
 
+int uiTableHeaderVisible(uiTable *t)
+{
+	return [t->tv headerView] != nil;
+}
+
+void uiTableHeaderSetVisible(uiTable *t, int visible)
+{
+	if (visible)
+		[(uiprivTableView*)t->tv restoreHeaderView];
+	else
+		[t->tv setHeaderView:nil];
+}
+
 uiTable *uiNewTable(uiTableParams *p)
 {
 	uiTable *t;

test/page16.c

@@ -98,11 +98,20 @@ static void modelSetCellValue(uiTableModelHandler *mh, uiTableModel *m, int row,
 		checkStates[row] = uiTableValueInt(val);
 }
 
+void headerVisibleToggled(uiCheckbox *c, void *data)
+{
+	uiTable *t = data;
+	uiTableHeaderSetVisible(t, uiCheckboxChecked(c));
+	uiCheckboxSetChecked(c, uiTableHeaderVisible(t));
+}
+
 static uiTableModel *m;
 
 uiBox *makePage16(void)
 {
 	uiBox *page16;
+	uiBox *controls;
+	uiCheckbox *headerVisible;
 	uiTable *t;
 	uiTableParams p;
 	uiTableTextColumnOptionalParams tp;
@@ -119,6 +128,8 @@ uiBox *makePage16(void)
 	memset(checkStates, 0, 15 * sizeof (int));
 
 	page16 = newVerticalBox();
+	controls = newHorizontalBox();
+	uiBoxAppend(page16, uiControl(controls), 0);
 
 	mh.NumColumns = modelNumColumns;
 	mh.ColumnType = modelColumnType;
@@ -152,6 +163,11 @@ uiBox *makePage16(void)
 	uiTableAppendProgressBarColumn(t, "Progress Bar",
 		8);
 
+	headerVisible = uiNewCheckbox("Header Visible");
+	uiCheckboxSetChecked(headerVisible, uiTableHeaderVisible(t));
+	uiCheckboxOnToggled(headerVisible, headerVisibleToggled, t);
+	uiBoxAppend(controls, uiControl(headerVisible), 0);
+
 	return page16;
 }
 

ui.h

@@ -1455,6 +1455,13 @@ _UI_EXTERN void uiTableAppendButtonColumn(uiTable *t,
 	int buttonModelColumn,
 	int buttonClickableModelColumn);
 
+// uiTableHeaderVisible() returns whether the table header is visible
+// or not.
+_UI_EXTERN int uiTableHeaderVisible(uiTable *t);
+
+// uiTableHeaderSetVisible() sets the visibility of the table header.
+_UI_EXTERN void uiTableHeaderSetVisible(uiTable *t, int visible);
+
 // uiNewTable() creates a new uiTable with the specified parameters.
 _UI_EXTERN uiTable *uiNewTable(uiTableParams *params);
 

unix/table.c

@@ -477,6 +477,16 @@ void uiTableAppendButtonColumn(uiTable *t, const char *name, int buttonModelColu
 	g_ptr_array_add(t->columnParams, p);
 }
 
+int uiTableHeaderVisible(uiTable *t)
+{
+	return gtk_tree_view_get_headers_visible(t->tv);
+}
+
+void uiTableHeaderSetVisible(uiTable *t, int visible)
+{
+	gtk_tree_view_set_headers_visible(t->tv, visible);
+}
+
 uiUnixControlAllDefaultsExceptDestroy(uiTable)
 
 static void uiTableDestroy(uiControl *c)

windows/table.cpp

@@ -479,6 +479,26 @@ void uiTableAppendButtonColumn(uiTable *t, const char *name, int buttonModelColu
 	p->buttonClickableModelColumn = buttonClickableModelColumn;
 }
 
+int uiTableHeaderVisible(uiTable *t)
+{
+	HWND header = ListView_GetHeader(t->hwnd);
+	if (header) {
+		LONG style = GetWindowLong(header, GWL_STYLE);
+		return !(style & HDS_HIDDEN);
+	}
+	// TODO abort here?
+	return 0;
+}
+
+void uiTableHeaderSetVisible(uiTable *t, int visible)
+{
+	LONG style = GetWindowLong(t->hwnd, GWL_STYLE);
+	if (visible)
+		SetWindowLong(t->hwnd, GWL_STYLE, style & ~LVS_NOCOLUMNHEADER);
+	else
+		SetWindowLong(t->hwnd, GWL_STYLE, style | LVS_NOCOLUMNHEADER);
+}
+
 uiTable *uiNewTable(uiTableParams *p)
 {
 	uiTable *t;