improve disabled text drawingHEADmaster

now working pretty much exactly like the standard controls,
even on Win3.1 and on Win95 with monochrome displays

1 files changed, 49 insertions, 25 deletions

diff --git a/alf/alfcompat.cpp b/alf/alfcompat.cpp
index d764895..3efe210 100644
--- a/alf/alfcompat.cpp
+++ b/alf/alfcompat.cpp
@@ -579,6 +579,26 @@ ALF_Compat_DrawDisabledTextEmbossed(HDC     hdc,
                      DST_COMPLEX | DSS_DISABLED);
 }
 
+struct ALF_Compat_DrawDisabledText_GrayTextClosure {
+    const TCHAR *text;
+    int cchText;
+    LONG width;
+    LONG height;
+    UINT format;
+};
+
+static BOOL CALLBACK
+ALF_Compat_DrawDisabledText_GrayTextProc(HDC hdc, LPARAM lpdata, int cchData)
+{
+    (void)cchData;
+
+    struct ALF_Compat_DrawDisabledText_GrayTextClosure *c = (struct ALF_Compat_DrawDisabledText_GrayTextClosure *)lpdata;
+
+    RECT rc = { 0, 0, c->width, c->height };
+    DrawText(hdc, c->text, c->cchText, &rc, c->format);
+    return TRUE;
+}
+
 static int
 ALF_Compat_DrawDisabledTextSolid(HDC     hdc,
                                  LPCTSTR lpchText,
@@ -586,24 +606,32 @@ ALF_Compat_DrawDisabledTextSolid(HDC     hdc,
                                  LPRECT  lprc,
                                  UINT    format)
 {
-    COLORREF oldcolor = SetTextColor(hdc, GetSysColor(COLOR_GRAYTEXT));
-    int r = DrawText(hdc, lpchText, cchText, lprc, format);
-    SetTextColor(hdc, oldcolor);
-    return r;
-}
-
-// FIXME! This is how NT 3.x does it, need to figure out how to get the real 16bit look
-static int
-ALF_Compat_DrawDisabledText31(HDC     hdc,
-                              LPCTSTR lpchText,
-                              int     cchText,
-                              LPRECT  lprc,
-                              UINT    format)
-{
-    COLORREF oldcolor = SetTextColor(hdc, GetSysColor(COLOR_BTNSHADOW));
-    int r = DrawText(hdc, lpchText, cchText, lprc, format);
-    SetTextColor(hdc, oldcolor);
-    return r;
+    DWORD graytext = GetSysColor(COLOR_GRAYTEXT);
+    if (graytext && graytext != GetSysColor(COLOR_BTNFACE)) {
+        // real gray color is available, use it for drawing
+        COLORREF oldcolor = SetTextColor(hdc, graytext);
+        int r = DrawText(hdc, lpchText, cchText, lprc, format);
+        SetTextColor(hdc, oldcolor);
+        return r;
+    } else {
+        // no real gray color (monochrome display or other weird color palette)
+        // need to go via GrayString
+        struct ALF_Compat_DrawDisabledText_GrayTextClosure c = {
+            lpchText,
+            cchText,
+            lprc->right - lprc->left,
+            lprc->bottom - lprc->top,
+            format
+        };
+
+        return GrayString(hdc,
+                          GetSysColorBrush(COLOR_BTNTEXT),
+                          ALF_Compat_DrawDisabledText_GrayTextProc,
+                          (LPARAM)&c,
+                          42,
+                          lprc->left, lprc->top,
+                          lprc->right - lprc->left, lprc->bottom - lprc->top);
+    }
 }
 
 
@@ -696,14 +724,10 @@ void ALF_LoadCompatFunctions(void)
     LOAD_FUNC(comctl32, LoadIconWithScaleDown);
 
     // initialize helper function for disabled text
-    if (ALF_Compat_Is40()) {
-        if (GetSystemMetrics(SM_SLOWMACHINE)) {
-            ALF_Compat_DrawDisabledText = ALF_Compat_DrawDisabledTextSolid;
-        } else {
-            ALF_Compat_DrawDisabledText = ALF_Compat_DrawDisabledTextEmbossed;
-        }
+    if (!ALF_Compat_Is40() || GetSystemMetrics(SM_SLOWMACHINE)) {
+        ALF_Compat_DrawDisabledText = ALF_Compat_DrawDisabledTextSolid;
     } else {
-        ALF_Compat_DrawDisabledText = ALF_Compat_DrawDisabledText31;
+        ALF_Compat_DrawDisabledText = ALF_Compat_DrawDisabledTextEmbossed;
     }
 
     // initialize double buffering wrapper