tdf#119282 Area tab, Pattern color change

regression from

    commit ccd316d1cb310734848bd20244f509024b549b8c
	use VirtualDevice in createHistorical8x8FromArray

Move the code inside vcl so we don't need to expose BitmapWriteAccess.

I tried to detect this thing by counting the number of independent
colors in the bitmap, but that didn't work. It is used from more than
one place, and appears to be very determined that it needs a 2-color
palette to work properly.

Change-Id: Id11dd9ea78e5e522a6083d6a799e801cac81fd5b
Reviewed-on: https://gerrit.libreoffice.org/59331
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
Tested-by: Jenkins

2 files changed, 6 insertions, 64 deletions

diff --git a/svx/source/xoutdev/xattrbmp.cxx b/svx/source/xoutdev/xattrbmp.cxx
index 2e9269857935..262870a8ad8b 100644
--- a/svx/source/xoutdev/xattrbmp.cxx
+++ b/svx/source/xoutdev/xattrbmp.cxx
@@ -144,65 +144,6 @@ XFillBitmapItem::XFillBitmapItem(const XFillBitmapItem& rItem)
 {
 }
 
-BitmapEx createHistorical8x8FromArray(std::array<sal_uInt8,64> const & pArray, Color aColorPix, Color aColorBack)
-{
-    vcl::bitmap::RawBitmap aBitmap(Size(8, 8), 24);
-
-    for(sal_uInt16 a(0); a < 8; a++)
-    {
-        for(sal_uInt16 b(0); b < 8; b++)
-        {
-            if(pArray[(a * 8) + b])
-            {
-                aBitmap.SetPixel(a, b, aColorBack);
-            }
-            else
-            {
-                aBitmap.SetPixel(a, b, aColorPix);
-            }
-        }
-    }
-
-    return vcl::bitmap::CreateFromData(std::move(aBitmap));
-}
-
-bool isHistorical8x8(const BitmapEx& rBitmapEx, BitmapColor& o_rBack, BitmapColor& o_rFront)
-{
-    bool bRet(false);
-
-    if(!rBitmapEx.IsTransparent())
-    {
-        Bitmap aBitmap(rBitmapEx.GetBitmap());
-
-        if(8 == aBitmap.GetSizePixel().Width() && 8 == aBitmap.GetSizePixel().Height())
-        {
-            if(2 == aBitmap.GetColorCount())
-            {
-                BitmapReadAccess* pRead = aBitmap.AcquireReadAccess();
-
-                if(pRead)
-                {
-                    if(pRead->HasPalette() && 2 == pRead->GetPaletteEntryCount())
-                    {
-                        const BitmapPalette& rPalette = pRead->GetPalette();
-
-                        // #i123564# background and foreground were exchanged; of course
-                        // rPalette[0] is the background color
-                        o_rFront = rPalette[1];
-                        o_rBack = rPalette[0];
-
-                        bRet = true;
-                    }
-
-                    Bitmap::ReleaseAccess(pRead);
-                }
-            }
-        }
-    }
-
-    return bRet;
-}
-
 XFillBitmapItem::XFillBitmapItem(const GraphicObject& rGraphicObject)
     : NameOrIndex(XATTR_FILLBITMAP, -1)
     , maGraphicObject(rGraphicObject)
@@ -224,7 +165,7 @@ bool XFillBitmapItem::operator==(const SfxPoolItem& rItem) const
 bool XFillBitmapItem::isPattern() const
 {
     BitmapColor aBack, aFront;
-    return isHistorical8x8(GetGraphicObject().GetGraphic().GetBitmapEx(), aBack, aFront);
+    return vcl::bitmap::isHistorical8x8(GetGraphicObject().GetGraphic().GetBitmapEx(), aBack, aFront);
 }
 
 sal_uInt16 XFillBitmapItem::GetVersion(sal_uInt16 /*nFileFormatVersion*/) const
diff --git a/svx/source/xoutdev/xtabptrn.cxx b/svx/source/xoutdev/xtabptrn.cxx
index 853fd24a819e..d207bb15de4c 100644
--- a/svx/source/xoutdev/xtabptrn.cxx
+++ b/svx/source/xoutdev/xtabptrn.cxx
@@ -29,6 +29,7 @@
 #include <svx/xbtmpit.hxx>
 #include <vcl/settings.hxx>
 #include <vcl/svapp.hxx>
+#include <vcl/BitmapTools.hxx>
 
 #include <o3tl/make_unique.hxx>
 
@@ -56,28 +57,28 @@ bool XPatternList::Create()
 
     // white/white bitmap
     aStr.append(" 1");
-    aBitmap = createHistorical8x8FromArray(aArray, COL_WHITE, COL_WHITE);
+    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_WHITE, COL_WHITE);
     Insert(o3tl::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));
 
     // black/white bitmap
     aArray[ 0] = 1; aArray[ 9] = 1; aArray[18] = 1; aArray[27] = 1;
     aArray[36] = 1; aArray[45] = 1; aArray[54] = 1; aArray[63] = 1;
     aStr[nLen] = '2';
-    aBitmap = createHistorical8x8FromArray(aArray, COL_BLACK, COL_WHITE);
+    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_BLACK, COL_WHITE);
     Insert(o3tl::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));
 
     // lightred/white bitmap
     aArray[ 7] = 1; aArray[14] = 1; aArray[21] = 1; aArray[28] = 1;
     aArray[35] = 1; aArray[42] = 1; aArray[49] = 1; aArray[56] = 1;
     aStr[nLen] = '3';
-    aBitmap = createHistorical8x8FromArray(aArray, COL_LIGHTRED, COL_WHITE);
+    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_LIGHTRED, COL_WHITE);
     Insert(o3tl::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));
 
     // lightblue/white bitmap
     aArray[24] = 1; aArray[25] = 1; aArray[26] = 1;
     aArray[29] = 1; aArray[30] = 1; aArray[31] = 1;
     aStr[nLen] = '4';
-    aBitmap = createHistorical8x8FromArray(aArray, COL_LIGHTBLUE, COL_WHITE);
+    aBitmap = vcl::bitmap::createHistorical8x8FromArray(aArray, COL_LIGHTBLUE, COL_WHITE);
     Insert(o3tl::make_unique<XBitmapEntry>(Graphic(aBitmap), aStr.toString()));
 
     return true;