Added Table.Selected()/Table.Select() and implemented them on Windows.

1 files changed, 30 insertions, 0 deletions

diff --git a/redo/table_windows.c b/redo/table_windows.c
index e10611e..a34e47a 100644
--- a/redo/table_windows.c
+++ b/redo/table_windows.c
@@ -122,3 +122,33 @@ void tableSetCheckboxImageList(HWND hwnd)
 	if (SendMessageW(hwnd, LVM_SETCALLBACKMASK, LVIS_STATEIMAGEMASK, 0) == FALSE)
 		xpanic("error marking state image list as application-managed", GetLastError());
 }
+
+// because Go won't let me do C.WPARAM(-1)
+intptr_t tableSelectedItem(HWND hwnd)
+{
+	return (intptr_t) SendMessageW(hwnd, LVM_GETNEXTITEM, (WPARAM) -1, LVNI_SELECTED);
+}
+
+void tableSelectItem(HWND hwnd, intptr_t index)
+{
+	LVITEMW item;
+	LRESULT current;
+
+	// via http://support.microsoft.com/kb/131284
+	// we don't need to clear the other bits; Tables don't support cutting or drag/drop
+	current = SendMessageW(hwnd, LVM_GETNEXTITEM, (WPARAM) -1, LVNI_SELECTED);
+	if (current != (LRESULT) -1) {
+		ZeroMemory(&item, sizeof (LVITEMW));
+		item.mask = LVIF_STATE;
+		item.state = 0;
+		item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
+		if (SendMessageW(hwnd, LVM_SETITEMSTATE, (WPARAM) current, (LPARAM) (&item)) == FALSE)
+			xpanic("error deselecting current Table item", GetLastError());
+	}
+	ZeroMemory(&item, sizeof (LVITEMW));
+	item.mask = LVIF_STATE;
+	item.state = LVIS_FOCUSED | LVIS_SELECTED;
+	item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
+	if (SendMessageW(hwnd, LVM_SETITEMSTATE, (WPARAM) index, (LPARAM) (&item)) == FALSE)
+		xpanic("error selecting new Table item", GetLastError());
+}