notebook: save layout flags to control font and bg inheritance

this makes setting fonts and background color for tab panels work,
instead of appearing to work but then being overridden later

1 files changed, 101 insertions, 18 deletions

diff --git a/alf/alfnotebook.cpp b/alf/alfnotebook.cpp
index 143defa..501b072 100644
--- a/alf/alfnotebook.cpp
+++ b/alf/alfnotebook.cpp
@@ -19,6 +19,12 @@ typedef struct {
     DWORD    flags;
 } ALFNotebookPriv;
 
+typedef struct {
+    TCITEMHEADER header;
+    DWORD        layoutFlags;
+    HWND         panel;
+} ALFNotebookPage;
+
 static ALFNotebookPriv *
 ALF_Notebook_CreatePriv(void)
 {
@@ -49,13 +55,13 @@ ALF_Notebook_InternalTabPanel(HWND notebook, HWND tabControl, int index)
 {
     (void)notebook;
 
-    TCITEM tci;
-    ZeroMemory(&tci, sizeof(tci));
+    ALFNotebookPage p;
+    ZeroMemory(&p, sizeof(p));
 
-    tci.mask = TCIF_PARAM;
+    p.header.mask = TCIF_PARAM;
 
-    if (TabCtrl_GetItem(tabControl, index, &tci)) {
-        return (HWND)tci.lParam;
+    if (TabCtrl_GetItem(tabControl, index, &p)) {
+        return p.panel;
     } else {
         return NULL;
     }
@@ -101,8 +107,32 @@ ALF_Notebook_SetAllTabBackgrounds(HWND hwndNotebook, ALFNotebookPriv *priv)
 {
     int n = ALF_Notebook_InternalTabCount(hwndNotebook, priv->hwndTabCtrl);
     for (int i = 0; i < n; ++i) {
-        HWND panel = ALF_Notebook_InternalTabPanel(hwndNotebook, priv->hwndTabCtrl, i);
-        ALF_Notebook_SetSingleTabBackground(hwndNotebook, priv, panel);
+        ALFNotebookPage p;
+        ZeroMemory(&p, sizeof(p));
+        p.header.mask = TCIF_PARAM;
+
+        if (TabCtrl_GetItem(priv->hwndTabCtrl, i, &p)) {
+            if (p.layoutFlags & ALF_LAYOUT_INHERITBGCOLOR) {
+                ALF_Notebook_SetSingleTabBackground(hwndNotebook, priv, p.panel);
+            }
+        }
+    }
+}
+
+static void
+ALF_Notebook_PropagateFontToPages(HWND hwndNotebook, ALFNotebookPriv *priv, HFONT font, LPARAM lparam)
+{
+    int n = ALF_Notebook_InternalTabCount(hwndNotebook, priv->hwndTabCtrl);
+    for (int i = 0; i < n; ++i) {
+        ALFNotebookPage p;
+        ZeroMemory(&p, sizeof(p));
+        p.header.mask = TCIF_PARAM;
+
+        if (TabCtrl_GetItem(priv->hwndTabCtrl, i, &p)) {
+            if (p.layoutFlags & ALF_LAYOUT_INHERITFONT) {
+                SendMessage(p.panel, WM_SETFONT, (WPARAM)font, lparam);
+            }
+        }
     }
 }
 
@@ -145,14 +175,15 @@ ALF_Notebook_InternalAddTab(HWND notebook, ALFNotebookPriv *priv, const TCHAR *t
 
     ALF_Notebook_SetSingleTabBackground(notebook, priv, hwndPanel);
 
-    TCITEM tie;
-    ZeroMemory(&tie, sizeof(tie));
+    ALFNotebookPage p;
+    ZeroMemory(&p, sizeof(p));
 
-    tie.mask = TCIF_TEXT | TCIF_PARAM;
-    tie.pszText = (TCHAR*)title;
-    tie.lParam = (LPARAM)hwndPanel;
+    p.header.mask = TCIF_TEXT | TCIF_PARAM;
+    p.header.pszText = (TCHAR*)title;
+    p.layoutFlags = ALF_LAYOUT_INHERITBGCOLOR | ALF_LAYOUT_INHERITFONT;
+    p.panel = hwndPanel;
 
-    TabCtrl_InsertItem(priv->hwndTabCtrl, ALF_Notebook_InternalTabCount(notebook, priv->hwndTabCtrl), &tie);
+    TabCtrl_InsertItem(priv->hwndTabCtrl, ALF_Notebook_InternalTabCount(notebook, priv->hwndTabCtrl), &p);
     ALF_Notebook_InternalHandleTabChange(notebook, priv->hwndTabCtrl);
 
     ALF_InvalidateLayout(notebook);
@@ -222,6 +253,56 @@ ALF_Notebook_InternalPaint(HWND hwnd, ALFNotebookPriv *priv, HDC dc, RECT *f)
     FillRect(dc, f, GetSysColorBrush(COLOR_BTNFACE));
 }
 
+static DWORD
+ALF_Notebook_GetWidgetFlags(HWND hwndNotebook, ALFNotebookPriv *priv, HWND widget)
+{
+    int n = ALF_Notebook_InternalTabCount(hwndNotebook, priv->hwndTabCtrl);
+    for (int i = 0; i < n; ++i) {
+        ALFNotebookPage p;
+        ZeroMemory(&p, sizeof(p));
+        p.header.mask = TCIF_PARAM;
+
+        if (TabCtrl_GetItem(priv->hwndTabCtrl, i, &p)) {
+            if (p.panel == widget) {
+                return p.layoutFlags;
+            }
+        }
+    }
+
+    return 0;
+}
+
+static BOOL
+ALF_Notebook_SetWidgetFlags(HWND hwndNotebook, ALFNotebookPriv *priv, HWND widget, DWORD flags)
+{
+    int n = ALF_Notebook_InternalTabCount(hwndNotebook, priv->hwndTabCtrl);
+    for (int i = 0; i < n; ++i) {
+        ALFNotebookPage p;
+        ZeroMemory(&p, sizeof(p));
+        p.header.mask = TCIF_PARAM;
+
+        if (TabCtrl_GetItem(priv->hwndTabCtrl, i, &p)) {
+            if (p.panel == widget) {
+                if (p.layoutFlags == flags)
+                    return TRUE;
+
+                if ((flags & ALF_LAYOUT_INHERITFONT) && !(p.layoutFlags & ALF_LAYOUT_INHERITFONT)) {
+                    SendMessage(p.panel, WM_SETFONT, (WPARAM)SendMessage(priv->hwndTabCtrl, WM_GETFONT, 0, 0), TRUE);
+                }
+                if ((flags & ALF_LAYOUT_INHERITBGCOLOR) && !(p.layoutFlags & ALF_LAYOUT_INHERITBGCOLOR)) {
+                    ALF_Notebook_SetSingleTabBackground(hwndNotebook, priv, p.panel);
+                }
+
+                p.layoutFlags = flags;
+
+                return TabCtrl_SetItem(priv->hwndTabCtrl, i, &p);
+            }
+        }
+    }
+
+    return FALSE;
+}
+
 static LRESULT CALLBACK
 ALF__NotebookWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 {
@@ -242,6 +323,8 @@ ALF__NotebookWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
                                            ALF_HINSTANCE,
                                            NULL);
 
+        TabCtrl_SetItemExtra(priv->hwndTabCtrl, sizeof(ALFNotebookPage) - sizeof(TCITEMHEADER));
+
         ALF_Compat_SetWindowSubclass(priv->hwndTabCtrl, ALF_Notebook_TabCtrlSubclassProc, 0, 0);
 
         SetWindowLongPtr(hwnd, 0, (LONG_PTR)priv);
@@ -258,11 +341,7 @@ ALF__NotebookWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
     } else if (uMsg == WM_SETFONT) {
         SendMessage(priv->hwndTabCtrl, WM_SETFONT, wParam, lParam);
 
-        int n = ALF_Notebook_InternalTabCount(hwnd, priv->hwndTabCtrl);
-        for (int i = 0; i < n; ++i) {
-            HWND p = ALF_Notebook_InternalTabPanel(hwnd, priv->hwndTabCtrl, i);
-            SendMessage(p, WM_SETFONT, wParam, lParam);
-        }
+        ALF_Notebook_PropagateFontToPages(hwnd, priv, (HFONT)wParam, lParam);
 
         ALF_InvalidateLayout(hwnd);
     } else if (uMsg == WM_GETFONT) {
@@ -375,6 +454,10 @@ ALF__NotebookWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
         if ((oldFlags & ALF_NOTEBOOK_SOLID_TAB_BACKGROUND) != (priv->flags & ALF_NOTEBOOK_SOLID_TAB_BACKGROUND)) {
             ALF_Notebook_SetAllTabBackgrounds(hwnd, priv);
         }
+    } else if (uMsg == ALF_WM_LYT_GETWDGTFLAGS) {
+        return (LRESULT)ALF_Notebook_GetWidgetFlags(hwnd, priv, (HWND)wParam);
+    } else if (uMsg == ALF_WM_LYT_SETWDGTFLAGS) {
+        return (LRESULT)ALF_Notebook_SetWidgetFlags(hwnd, priv, (HWND)wParam, (DWORD)lParam);
     }
 
     return DefWindowProc(hwnd, uMsg, wParam, lParam);