1 files changed, 58 insertions, 0 deletions
diff --git a/alf/alfspacer.cpp b/alf/alfspacer.cpp
new file mode 100644
index 0000000..545dfbc
--- /dev/null
+++ b/alf/alfspacer.cpp
@@ -0,0 +1,58 @@
+#include "alfpriv.h"
+
+void
+ALF_RegisterSpacerClass(ALFAPP app)
+{
+    WNDCLASS cls;
+    ZeroMemory(&cls, sizeof(cls));
+
+    TCHAR  classNameBuf[256];
+    ALF_BuildRandomClassName(TEXT("ALFSpacer"), classNameBuf, 256);
+
+    cls.hInstance = app->hInstance;
+    cls.hCursor = LoadCursor(NULL, (LPTSTR)IDC_ARROW);
+    if (LOBYTE(LOWORD(GetVersion())) >= 4) {
+        cls.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
+    } else {
+        // NT 3.x has white dialog backgrounds
+        cls.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
+    }
+    cls.lpszClassName = classNameBuf;
+    cls.cbWndExtra = sizeof(void*);
+    cls.lpfnWndProc = DefWindowProc;
+
+    ATOM classatom = RegisterClass(&cls);
+    if (!classatom)
+        MessageBox(NULL, TEXT("FATAL: Could not register spacer class"), NULL, MB_OK);
+
+    app->spacerClass = MAKEINTATOM(classatom);
+}
+
+HWND
+ALF_AddSpacer(HWND parent, WORD id, UINT x, UINT y, UINT cptWidth, UINT cptHeight, DWORD layoutFlags)
+{
+    ALFAPP app = ALF_ApplicationFromWindow(parent);
+
+    HWND hwndSpacer = CreateWindowEx(0,
+                                     app->spacerClass,
+                                     TEXT(""),
+                                     WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN,
+                                     0, 0, 0, 0,
+                                     parent,
+                                     (HMENU)(int)id,
+                                     (HINSTANCE)GetWindowLongPtr(parent, GWLP_HINSTANCE),
+                                     (void*)app);
+
+    ALFWidgetLayoutParams p;
+    ZeroMemory(&p, sizeof(p));
+    p.hwnd = hwndSpacer;
+    p.x = x;
+    p.y = y;
+    p.width = cptWidth;
+    p.height = cptHeight;
+    p.flags = layoutFlags;
+
+    ALF_AddWidgetEx(parent, &p);
+
+    return hwndSpacer;
+}