panel: support edge (like delphi)

mainly to force me to implement layout margins

1 files changed, 7 insertions, 3 deletions

diff --git a/alf/alflayout.h b/alf/alflayout.h
index bd966cc..9170db7 100644
--- a/alf/alflayout.h
+++ b/alf/alflayout.h
@@ -37,10 +37,11 @@ typedef struct {
     int allocatedPosition;
 } ALFLayoutRowOrColumn;
 
-#define ALF_LAYOUT_NEED_RECALC   ((DWORD)1)
-#define ALF_LAYOUT_NEED_REAPPLY  ((DWORD)2)
+#define ALF_LAYOUT_NEED_RECALC           ((DWORD)1)
+#define ALF_LAYOUT_NEED_REAPPLY          ((DWORD)2)
+#define ALF_LAYOUT_NEED_RECALC_CONTAINER ((DWORD)4)
 
-typedef struct {
+typedef struct tagALFLayout {
     ALFListHeader         widgets;
     ALFLayoutRowOrColumn *columns;
     ALFLayoutRowOrColumn *rows;
@@ -56,6 +57,9 @@ typedef struct {
     int                   dpi;
     HFONT                 font;
     ALFColor              bgcolor;
+    RECT                  containerMargins;
+    void                (*calculateContainerMetrics)(struct tagALFLayout *layout, HWND hwnd, RECT *margins, SIZE *minSize);
+    RECT                  allocatedWidgetRect;
 } ALFLayout;
 
 void