Dylan Smith : richedit: Use system colour for highlighting after v2.0.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 0f14d65c70f4aea75b6cb4ac61a5572ac9b3449c
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=0f14d65c70f4aea75b6cb4ac61...

Author: Dylan Smith <dylan.ah.smith(a)gmail.com>
Date:   Thu Jul 10 18:28:45 2008 -0400

richedit: Use system colour for highlighting after v2.0.

In version 1.0 of the richedit controls highlighting is done by
inverting the colours.  Version 2.0 and up highlight instead draw
the text using system colours for the background and the text.

---

 dlls/riched20/paint.c |  132 ++++++++++++++++++++++++++++++++++++------------
 1 files changed, 99 insertions(+), 33 deletions(-)

diff --git a/dlls/riched20/paint.c b/dlls/riched20/paint.c
index ec39953..c2e8b06 100644
--- a/dlls/riched20/paint.c
+++ b/dlls/riched20/paint.c
@@ -192,7 +192,20 @@ static void ME_HighlightSpace(ME_Context *c, int x, int y, LPCWSTR szText,
   }
   ME_UnselectStyleFont(c, s, hOldFont);
 
-  PatBlt(hDC, x, ymin, selWidth, cy, DSTINVERT);
+  if (c->editor->bEmulateVersion10)
+    PatBlt(hDC, x, ymin, selWidth, cy, DSTINVERT);
+  else
+  {
+    RECT rect;
+    HBRUSH hBrush;
+    rect.left = x;
+    rect.top = ymin;
+    rect.right = x + selWidth;
+    rect.bottom = ymin + cy;
+    hBrush = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
+    FillRect(hDC, &rect, hBrush);
+    DeleteObject(hBrush);
+  }
 }
 
 static void ME_DrawTextWithStyle(ME_Context *c, int x, int y, LPCWSTR szText,
@@ -205,6 +218,10 @@ static void ME_DrawTextWithStyle(ME_Context *c, int x, int y, LPCWSTR szText,
   int yOffset = 0, yTwipsOffset = 0;
   SIZE          sz;
   COLORREF      rgb;
+  HPEN hPen = NULL, hOldPen = NULL;
+  BOOL bHighlightedText = (nSelFrom < nChars && nSelTo >= 0
+                           && nSelFrom < nSelTo && !c->editor->bHideSelection);
+  int xSelStart = x, xSelEnd = x;
   int *lpDx = NULL;
   /* lpDx is only needed for tabs to make sure the underline done automatically
    * by the font extends to the end of the tab. Tabs are always stored as
@@ -214,13 +231,6 @@ static void ME_DrawTextWithStyle(ME_Context *c, int x, int y, LPCWSTR szText,
       lpDx = &width; /* Make sure underline for tab extends across tab space */
 
   hOldFont = ME_SelectStyleFont(c, s);
-  if ((s->fmt.dwMask & CFM_LINK) && (s->fmt.dwEffects & CFE_LINK))
-    rgb = RGB(0,0,255);
-  else if ((s->fmt.dwMask & CFM_COLOR) && (s->fmt.dwEffects & CFE_AUTOCOLOR))
-    rgb = GetSysColor(COLOR_WINDOWTEXT);
-  else
-    rgb = s->fmt.crTextColor;
-  rgbOld = SetTextColor(hDC, rgb);
   if ((s->fmt.dwMask & s->fmt.dwEffects) & CFM_OFFSET) {
     yTwipsOffset = s->fmt.yOffset;
   }
@@ -230,15 +240,45 @@ static void ME_DrawTextWithStyle(ME_Context *c, int x, int y, LPCWSTR szText,
   }
   if (yTwipsOffset)
     yOffset = ME_twips2pointsY(c, yTwipsOffset);
-  ExtTextOutW(hDC, x, y-yOffset, 0, NULL, szText, nChars, lpDx);
+
+  if ((s->fmt.dwMask & CFM_LINK) && (s->fmt.dwEffects & CFE_LINK))
+    rgb = RGB(0,0,255);
+  else if ((s->fmt.dwMask & CFM_COLOR) && (s->fmt.dwEffects & CFE_AUTOCOLOR))
+    rgb = GetSysColor(COLOR_WINDOWTEXT);
+  else
+    rgb = s->fmt.crTextColor;
+
+  /* Determine the area that is selected in the run. */
   GetTextExtentPoint32W(hDC, szText, nChars, &sz);
   /* Treat width as an optional parameter.  We can get the width from the
    * text extent of the string if it isn't specified. */
   if (!width) width = sz.cx;
+  if (bHighlightedText)
+  {
+    if (nSelFrom <= 0)
+    {
+      nSelFrom = 0;
+    }
+    else
+    {
+      GetTextExtentPoint32W(hDC, szText, nSelFrom, &sz);
+      xSelStart = x + sz.cx;
+    }
+    if (nSelTo >= nChars)
+    {
+      nSelTo = nChars;
+      xSelEnd = x + width;
+    }
+    else
+    {
+      GetTextExtentPoint32W(hDC, szText+nSelFrom, nSelTo-nSelFrom, &sz);
+      xSelEnd = xSelStart + sz.cx;
+    }
+  }
 
+  /* Choose the pen type for underlining the text. */
   if (s->fmt.dwMask & CFM_UNDERLINETYPE)
   {
-    HPEN    hPen = NULL;
     switch (s->fmt.bUnderlineType)
     {
     case CFU_UNDERLINE:
@@ -257,41 +297,67 @@ static void ME_DrawTextWithStyle(ME_Context *c, int x, int y, LPCWSTR szText,
       hPen = NULL;
       break;
     }
-    if (hPen != NULL)
+    if (hPen)
     {
-      HPEN hOldPen = SelectObject(hDC, hPen);
-      /* FIXME: should use textmetrics info for Descent info */
-      MoveToEx(hDC, x, y - yOffset + 1, NULL);
-      LineTo(hDC, x + width, y - yOffset + 1);
-      SelectObject(hDC, hOldPen);
-      DeleteObject(hPen);
+      hOldPen = SelectObject(hDC, hPen);
     }
   }
-  if (nSelFrom < nChars && nSelTo >= 0 && nSelFrom < nSelTo
-      && !c->editor->bHideSelection)
+
+  rgbOld = SetTextColor(hDC, rgb);
+  if (bHighlightedText && !c->editor->bEmulateVersion10)
   {
-    int xSelStart, xSelEnd;
-    if (nSelFrom <= 0)
+    COLORREF rgbBackOld;
+    RECT dim;
+    /* FIXME: should use textmetrics info for Descent info */
+    if (hPen)
+      MoveToEx(hDC, x, y - yOffset + 1, NULL);
+    if (xSelStart > x)
     {
-      nSelFrom = 0;
-      xSelStart = x;
+      ExtTextOutW(hDC, x, y-yOffset, 0, NULL, szText, nSelFrom, NULL);
+      if (hPen)
+        LineTo(hDC, xSelStart, y - yOffset + 1);
     }
-    else
+    dim.top = ymin;
+    dim.bottom = ymin + cy;
+    dim.left = xSelStart;
+    dim.right = xSelEnd;
+    SetTextColor(hDC, GetSysColor(COLOR_HIGHLIGHTTEXT));
+    rgbBackOld = SetBkColor(hDC, GetSysColor(COLOR_HIGHLIGHT));
+    ExtTextOutW(hDC, xSelStart, y-yOffset, ETO_OPAQUE, &dim,
+                szText+nSelFrom, nSelTo-nSelFrom, lpDx);
+    if (hPen)
+      LineTo(hDC, xSelEnd, y - yOffset + 1);
+    SetBkColor(hDC, rgbBackOld);
+    if (xSelEnd < x + width)
     {
-      GetTextExtentPoint32W(hDC, szText, nSelFrom, &sz);
-      xSelStart = x + sz.cx;
+      SetTextColor(hDC, rgb);
+      ExtTextOutW(hDC, xSelEnd, y-yOffset, 0, NULL, szText+nSelTo,
+                  nChars-nSelTo, NULL);
+      if (hPen)
+        LineTo(hDC, x + width, y - yOffset + 1);
     }
-    if (nSelTo >= nChars)
+  }
+  else
+  {
+    ExtTextOutW(hDC, x, y-yOffset, 0, NULL, szText, nChars, lpDx);
+
+    /* FIXME: should use textmetrics info for Descent info */
+    if (hPen)
     {
-      nSelTo = nChars;
-      xSelEnd = x + width;
+      MoveToEx(hDC, x, y - yOffset + 1, NULL);
+      LineTo(hDC, x + width, y - yOffset + 1);
     }
-    else
+
+    if (bHighlightedText) /* v1.0 inverts the selection */
     {
-      GetTextExtentPoint32W(hDC, szText+nSelFrom, nSelTo-nSelFrom, &sz);
-      xSelEnd = xSelStart + sz.cx;
+      PatBlt(hDC, xSelStart, ymin, xSelEnd-xSelStart, cy, DSTINVERT);
     }
-    PatBlt(hDC, xSelStart, ymin, xSelEnd-xSelStart, cy, DSTINVERT);
+  }
+
+  if (hPen)
+  {
+    SelectObject(hDC, hOldPen);
+    DeleteObject(hPen);
   }
   SetTextColor(hDC, rgbOld);
   ME_UnselectStyleFont(c, s, hOldFont);