[reactos] 01/02: [UXTHEME] Import DrawThemeTextEx() function from Wine (part of #6622)

[Ethan Rodensky]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=d4dc0cb54596f99b8fc40…

commit d4dc0cb54596f99b8fc40c90232823801b363cff
Author:     Ethan Rodensky <splitwirez(a)gmail.com>
AuthorDate: Thu Mar 14 14:00:52 2024 -0400
Commit:     Stanislav Motylkov <x86corez(a)gmail.com>
CommitDate: Mon Sep 9 15:26:40 2024 +0300

    [UXTHEME] Import DrawThemeTextEx() function from Wine (part of #6622)
    
    This is a Vista+ function, but it exists in Windows XP/2003 internally
    and used for drawing "Window Text" with a shadow in DrawNCPreview().
    
    And DrawThemeText() now acts as wrapper on top of it. CORE-5991
---
 dll/win32/uxtheme/draw.c   | 62 +++++++++++++++++++++++++++++++++++++++-------
 sdk/include/psdk/uxtheme.h | 53 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 106 insertions(+), 9 deletions(-)

diff --git a/dll/win32/uxtheme/draw.c b/dll/win32/uxtheme/draw.c
index c18a5986c47..c50f9128189 100644
--- a/dll/win32/uxtheme/draw.c
+++ b/dll/win32/uxtheme/draw.c
@@ -1372,11 +1372,21 @@ typedef int (WINAPI * DRAWSHADOWTEXT)(HDC hdc, LPCWSTR pszText,
UINT cch, RECT *
                           COLORREF crText, COLORREF crShadow, int ixOffset, int
iyOffset);
 
 /***********************************************************************
- *      DrawThemeText                                       (UXTHEME.@)
+ *      DrawThemeTextEx                                     (UXTHEME.@)
  */
-HRESULT WINAPI DrawThemeText(HTHEME hTheme, HDC hdc, int iPartId, int iStateId,
-                             LPCWSTR pszText, int iCharCount, DWORD dwTextFlags,
-                             DWORD dwTextFlags2, const RECT *pRect)
+HRESULT
+WINAPI
+DrawThemeTextEx(
+    _In_ HTHEME hTheme,
+    _In_ HDC hdc,
+    _In_ int iPartId,
+    _In_ int iStateId,
+    _In_ LPCWSTR pszText,
+    _In_ int iCharCount,
+    _In_ DWORD dwTextFlags,
+    _Inout_ LPRECT pRect,
+    _In_ const DTTOPTS *options
+)
 {
     HRESULT hr;
     HFONT hFont = NULL;
@@ -1389,10 +1399,14 @@ HRESULT WINAPI DrawThemeText(HTHEME hTheme, HDC hdc, int iPartId,
int iStateId,
     int oldBkMode;
     RECT rt;
     int iShadowType;
+    DWORD optFlags;
 
-    TRACE("%d %d: stub\n", iPartId, iStateId);
     if(!hTheme)
         return E_HANDLE;
+    if (!options)
+        return E_NOTIMPL;
+
+    optFlags = options->dwFlags;
 
     hr = GetThemeFont(hTheme, hdc, iPartId, iStateId, TMT_FONT, &logfont);
     if(SUCCEEDED(hr)) 
@@ -1410,10 +1424,17 @@ HRESULT WINAPI DrawThemeText(HTHEME hTheme, HDC hdc, int iPartId,
int iStateId,
 
     oldBkMode = SetBkMode(hdc, TRANSPARENT);
 
-    if(dwTextFlags2 & DTT_GRAYED)
-        textColor = GetSysColor(COLOR_GRAYTEXT);
-    else {
-        if(FAILED(GetThemeColor(hTheme, iPartId, iStateId, TMT_TEXTCOLOR,
&textColor)))
+    if (optFlags & DTT_TEXTCOLOR)
+    {
+        textColor = options->crText;
+    }
+    else
+    {
+        int textColorProp = TMT_TEXTCOLOR;
+        if (optFlags & DTT_COLORPROP)
+            textColorProp = options->iColorPropId;
+
+        if (FAILED(GetThemeColor(hTheme, iPartId, iStateId, textColorProp,
&textColor)))
             textColor = GetTextColor(hdc);
     }
 
@@ -1473,6 +1494,29 @@ cleanup:
     return S_OK;
 }
 
+/***********************************************************************
+ *      DrawThemeText                                       (UXTHEME.@)
+ */
+HRESULT WINAPI DrawThemeText(HTHEME hTheme, HDC hdc, int iPartId, int iStateId,
+                             LPCWSTR pszText, int iCharCount, DWORD dwTextFlags,
+                             DWORD dwTextFlags2, const RECT *pRect)
+{
+    DTTOPTS opts = { 0 };
+    RECT rt = *pRect;
+
+    TRACE("(%p %p %d %d %s:%d 0x%08lx 0x%08lx %p)\n", hTheme, hdc, iPartId,
iStateId,
+        debugstr_wn(pszText, iCharCount), iCharCount, dwTextFlags, dwTextFlags2, pRect);
+
+    if (dwTextFlags2 & DTT_GRAYED)
+    {
+        opts.dwFlags = DTT_TEXTCOLOR;
+        opts.crText = GetSysColor(COLOR_GRAYTEXT);
+    }
+    opts.dwSize = sizeof(opts);
+
+    return DrawThemeTextEx(hTheme, hdc, iPartId, iStateId, pszText, iCharCount,
dwTextFlags, &rt, &opts);
+}
+
 /***********************************************************************
  *      GetThemeBackgroundContentRect                       (UXTHEME.@)
  */
diff --git a/sdk/include/psdk/uxtheme.h b/sdk/include/psdk/uxtheme.h
index cd98a46ae19..2b9a4f32a37 100644
--- a/sdk/include/psdk/uxtheme.h
+++ b/sdk/include/psdk/uxtheme.h
@@ -15,6 +15,24 @@ extern "C" {
 #define DTBG_COMPUTINGREGION        0x00000010
 #define DTBG_MIRRORDC               0x00000020
 #define DTT_GRAYED                  0x00000001
+
+/* DTTOPTS.dwFlags bits */
+#define DTT_TEXTCOLOR               0x00000001
+#define DTT_BORDERCOLOR             0x00000002
+#define DTT_SHADOWCOLOR             0x00000004
+#define DTT_SHADOWTYPE              0x00000008
+#define DTT_SHADOWOFFSET            0x00000010
+#define DTT_BORDERSIZE              0x00000020
+#define DTT_FONTPROP                0x00000040
+#define DTT_COLORPROP               0x00000080
+#define DTT_STATEID                 0x00000100
+#define DTT_CALCRECT                0x00000200
+#define DTT_APPLYOVERLAY            0x00000400
+#define DTT_GLOWSIZE                0x00000800
+#define DTT_CALLBACK                0x00001000
+#define DTT_COMPOSITED              0x00002000
+#define DTT_VALIDBITS               0x00003fff
+
 #define ETDT_DISABLE                0x00000001
 #define ETDT_ENABLE                 0x00000002
 #define ETDT_USETABTEXTURE          0x00000004
@@ -39,6 +57,7 @@ extern "C" {
 
 typedef HANDLE HPAINTBUFFER;
 typedef HANDLE HTHEME;
+typedef int (WINAPI *DTT_CALLBACK_PROC)(HDC,LPWSTR,int,RECT*,UINT,LPARAM);
 
 typedef enum _BP_BUFFERFORMAT
 {
@@ -90,6 +109,24 @@ typedef struct _MARGINS {
     int cyBottomHeight;
 } MARGINS, *PMARGINS;
 
+typedef struct _DTTOPTS {
+    DWORD dwSize;
+    DWORD dwFlags;
+    COLORREF crText;
+    COLORREF crBorder;
+    COLORREF crShadow;
+    int iTextShadowType;
+    POINT ptShadowOffset;
+    int iBorderSize;
+    int iFontPropId;
+    int iColorPropId;
+    int iStateId;
+    BOOL fApplyOverlay;
+    int iGlowSize;
+    DTT_CALLBACK_PROC pfnDrawTextCallback;
+    LPARAM lParam;
+} DTTOPTS, *PDTTOPTS;
+
 HRESULT WINAPI CloseThemeData(HTHEME);
 HRESULT WINAPI DrawThemeBackground(HTHEME,HDC,int,int,const RECT*,const RECT*);
 HRESULT WINAPI DrawThemeBackgroundEx(HTHEME,HDC,int,int,const RECT*,const DTBGOPTS*);
@@ -139,6 +176,22 @@ HTHEME WINAPI OpenThemeData(HWND,LPCWSTR);
 HTHEME WINAPI OpenThemeDataEx(HWND,LPCWSTR,DWORD);
 void WINAPI SetThemeAppProperties(DWORD);
 HRESULT WINAPI SetWindowTheme(HWND,LPCWSTR,LPCWSTR);
+
+/* Undocumented and not exported in Windows XP/2003
+ * In public headers since Vista+ */
+HRESULT
+WINAPI
+DrawThemeTextEx(
+    _In_ HTHEME hTheme,
+    _In_ HDC hdc,
+    _In_ int iPartId,
+    _In_ int iStateId,
+    _In_ LPCWSTR pszText,
+    _In_ int iCharCount,
+    _In_ DWORD dwTextFlags,
+    _Inout_ LPRECT pRect,
+    _In_ const DTTOPTS *options
+);
 #endif
 
 #ifdef __cplusplus