don't overwrite the existing local file if we failed to open it but it does exist

[wxWidgets.git] / src / msw / palette.cpp

diff --git a/src/msw/palette.cpp b/src/msw/palette.cpp
index 50caee20578169e8bc0ee275fc9694db2e318a71..989ff48e22a5417ab81029bedcf11495d2149d4d 100644 (file)
--- a/src/msw/palette.cpp
+++ b/src/msw/palette.cpp
@@ -1,18 +1,14 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        palette.cpp
+// Name:        src/msw/palette.cpp
 // Purpose:     wxPalette
 // Author:      Julian Smart
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "palette.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -22,8 +18,9 @@
 
 #if wxUSE_PALETTE
 
+#include "wx/palette.h"
+
 #ifndef WX_PRECOMP
-    #include "wx/palette.h"
 #endif
 
 #include "wx/msw/private.h"
@@ -37,7 +34,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject)
 
 wxPaletteRefData::wxPaletteRefData(void)
 {
-  m_hPalette = 0;
+    m_hPalette = 0;
 }
 
 wxPaletteRefData::~wxPaletteRefData(void)
@@ -46,96 +43,108 @@ wxPaletteRefData::~wxPaletteRefData(void)
         ::DeleteObject((HPALETTE) m_hPalette);
 }
 
-wxPalette::wxPalette(void)
+wxPalette::wxPalette()
 {
 }
 
 wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
 {
-  Create(n, red, green, blue);
+    Create(n, red, green, blue);
 }
 
 wxPalette::~wxPalette(void)
 {
-//    FreeResource(TRUE);
+//    FreeResource(true);
 }
 
 bool wxPalette::FreeResource(bool WXUNUSED(force))
 {
     if ( M_PALETTEDATA && M_PALETTEDATA->m_hPalette)
     {
-      DeleteObject((HPALETTE)M_PALETTEDATA->m_hPalette);
+        DeleteObject((HPALETTE)M_PALETTEDATA->m_hPalette);
+    }
+
+    return true;
+}
+
+int wxPalette::GetColoursCount() const
+{
+    if ( M_PALETTEDATA && M_PALETTEDATA->m_hPalette)
+    {
+        return ::GetPaletteEntries((HPALETTE) M_PALETTEDATA->m_hPalette, 0, 0, NULL );
     }
-    return TRUE;
+
+    return 0;
 }
 
 bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
 {
-  UnRef();
+    UnRef();
 
 #if defined(__WXMICROWIN__)
 
-  return (FALSE);
+    return false;
 
 #else
 
-  m_refData = new wxPaletteRefData;
+    m_refData = new wxPaletteRefData;
 
-  NPLOGPALETTE npPal = (NPLOGPALETTE)LocalAlloc(LMEM_FIXED, sizeof(LOGPALETTE) +
-                        (WORD)n * sizeof(PALETTEENTRY));
-  if (!npPal)
-    return(FALSE);
+    NPLOGPALETTE npPal = (NPLOGPALETTE)LocalAlloc(LMEM_FIXED, sizeof(LOGPALETTE) +
+                          (WORD)n * sizeof(PALETTEENTRY));
+    if (!npPal)
+        return false;
 
-  npPal->palVersion = 0x300;
-  npPal->palNumEntries = n;
+    npPal->palVersion = 0x300;
+    npPal->palNumEntries = (WORD)n;
 
-  int i;
-  for (i = 0; i < n; i ++)
-  {
-    npPal->palPalEntry[i].peRed = red[i];
-    npPal->palPalEntry[i].peGreen = green[i];
-    npPal->palPalEntry[i].peBlue = blue[i];
-    npPal->palPalEntry[i].peFlags = 0;
-  }
-  M_PALETTEDATA->m_hPalette = (WXHPALETTE) CreatePalette((LPLOGPALETTE)npPal);
-  LocalFree((HANDLE)npPal);
-  return TRUE;
+    int i;
+    for (i = 0; i < n; i ++)
+    {
+        npPal->palPalEntry[i].peRed = red[i];
+        npPal->palPalEntry[i].peGreen = green[i];
+        npPal->palPalEntry[i].peBlue = blue[i];
+        npPal->palPalEntry[i].peFlags = 0;
+    }
+    M_PALETTEDATA->m_hPalette = (WXHPALETTE) CreatePalette((LPLOGPALETTE)npPal);
+    LocalFree((HANDLE)npPal);
+    return true;
 
 #endif
 }
 
-int wxPalette::GetPixel(const unsigned char red, const unsigned char green, const unsigned char blue) const
+int wxPalette::GetPixel(unsigned char red, unsigned char green, unsigned char blue) const
 {
 #ifdef __WXMICROWIN__
-  return FALSE;
+    return wxNOT_FOUND;
 #else
-  if ( !m_refData )
-    return FALSE;
+    if ( !m_refData )
+        return wxNOT_FOUND;
 
-  return ::GetNearestPaletteIndex((HPALETTE) M_PALETTEDATA->m_hPalette, PALETTERGB(red, green, blue));
+    return ::GetNearestPaletteIndex((HPALETTE) M_PALETTEDATA->m_hPalette, PALETTERGB(red, green, blue));
 #endif
 }
 
 bool wxPalette::GetRGB(int index, unsigned char *red, unsigned char *green, unsigned char *blue) const
 {
 #ifdef __WXMICROWIN__
-  return FALSE;
+    return false;
 #else
-  if ( !m_refData )
-    return FALSE;
-
-  if (index < 0 || index > 255)
-         return FALSE;
-
-  PALETTEENTRY entry;
-  if (::GetPaletteEntries((HPALETTE) M_PALETTEDATA->m_hPalette, index, 1, &entry))
-  {
-         *red = entry.peRed;
-         *green = entry.peGreen;
-         *blue = entry.peBlue;
-         return TRUE;
-  } else
-         return FALSE;
+    if ( !m_refData )
+        return false;
+
+    if (index < 0 || index > 255)
+        return false;
+
+    PALETTEENTRY entry;
+    if (::GetPaletteEntries((HPALETTE) M_PALETTEDATA->m_hPalette, index, 1, &entry))
+    {
+        *red = entry.peRed;
+        *green = entry.peGreen;
+        *blue = entry.peBlue;
+        return true;
+    }
+    else
+        return false;
 #endif
 }
 
@@ -148,4 +157,3 @@ void wxPalette::SetHPALETTE(WXHPALETTE pal)
 }
 
 #endif // wxUSE_PALETTE
-