rework grid layout

Fractional expand is now supported like Qt, and also per row/column
instead of as a widget attribute.

Instead of margins, you're now supposed to use empty rows/columns instead.
Spacer is also gone, use empty rows/columns with minimum size.

Layout engine is prepared to directly calculate edit, button, etc.
sizes without subclassing these controls

1 files changed, 2 insertions, 11 deletions

diff --git a/alf/alfbutton.cpp b/alf/alfbutton.cpp
index be9a276..67a7236 100644
--- a/alf/alfbutton.cpp
+++ b/alf/alfbutton.cpp
@@ -485,7 +485,7 @@ ALF__ButtonSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT
 }
 
 HWND
-ALF_AddButton(HWND win, WORD id, UINT x, UINT y, const TCHAR *text)
+ALF_AddButton(HWND win, WORD id, int x, int y, const TCHAR *text)
 {
     HWND hwndButton  = CreateWindowEx(0,
                                       TEXT("BUTTON"),
@@ -505,16 +505,7 @@ ALF_AddButton(HWND win, WORD id, UINT x, UINT y, const TCHAR *text)
 
     SendMessage(hwndButton, WM_THEMECHANGED, 0, 0);
 
-    ALFWidgetLayoutParams p;
-    ZeroMemory(&p, sizeof(p));
-    p.hwnd = hwndButton;
-    p.x = x;
-    p.y = y;
-    p.width = 0;
-    p.height = 0;
-    p.flags = ALF_QUERYSIZE | ALF_INHERITFONT;
-
-    ALF_AddWidgetEx(win, &p);
+    ALF_AddWidget(win, x, y, hwndButton, 0, 0, ALF_LAYOUT_SIZE_QUERY | ALF_LAYOUT_INHERITFONT);
 
     return hwndButton;
 }