X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/36abe9d421ebb33873f012a63fbdb210ff771682..b53aea81d2e102224b452ef5bf7aee1132f37c6f:/src/common/image.cpp

diff --git a/src/common/image.cpp b/src/common/image.cpp
index 07ae7ac0ac..d3bf74c5c4 100644
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -195,13 +195,15 @@ bool wxImage::Create( int width, int height, bool clear )
         return false;
     }
 
-    if (clear)
-        memset(M_IMGDATA->m_data, 0, width*height*3);
-
     M_IMGDATA->m_width = width;
     M_IMGDATA->m_height = height;
     M_IMGDATA->m_ok = true;
 
+    if (clear)
+    {
+        Clear();
+    }
+
     return true;
 }
 
@@ -236,6 +238,7 @@ bool wxImage::Create( int width, int height, unsigned char* data, unsigned char*
     M_IMGDATA->m_height = height;
     M_IMGDATA->m_ok = true;
     M_IMGDATA->m_static = static_data;
+    M_IMGDATA->m_staticAlpha = static_data;
 
     return true;
 }
@@ -245,6 +248,11 @@ void wxImage::Destroy()
     UnRef();
 }
 
+void wxImage::Clear(unsigned char value)
+{
+    memset(M_IMGDATA->m_data, value, M_IMGDATA->m_width*M_IMGDATA->m_height*3);
+}
+
 wxObjectRefData* wxImage::CreateRefData() const
 {
     return new wxImageRefData;
@@ -1897,16 +1905,28 @@ bool wxImage::SetMaskFromImage(const wxImage& mask,
 
 bool wxImage::ConvertAlphaToMask(unsigned char threshold)
 {
-    if (!HasAlpha())
+    if ( !HasAlpha() )
         return true;
 
     unsigned char mr, mg, mb;
-    if (!FindFirstUnusedColour(&mr, &mg, &mb))
+    if ( !FindFirstUnusedColour(&mr, &mg, &mb) )
     {
         wxLogError( _("No unused colour in image being masked.") );
         return false;
     }
 
+    ConvertAlphaToMask(mr, mg, mb, threshold);
+    return true;
+}
+
+void wxImage::ConvertAlphaToMask(unsigned char mr,
+                                 unsigned char mg,
+                                 unsigned char mb,
+                                 unsigned char threshold)
+{
+    if ( !HasAlpha() )
+        return;
+
     AllocExclusive();
 
     SetMask(true);
@@ -1931,13 +1951,11 @@ bool wxImage::ConvertAlphaToMask(unsigned char threshold)
         }
     }
 
-    if( !M_IMGDATA->m_staticAlpha )
+    if ( !M_IMGDATA->m_staticAlpha )
         free(M_IMGDATA->m_alpha);
 
     M_IMGDATA->m_alpha = NULL;
     M_IMGDATA->m_staticAlpha = false;
-
-    return true;
 }
 
 // ----------------------------------------------------------------------------