/////////////////////////////////////////////////////////////////////////////
-// Name: palette.cpp
+// Name: src/msw/palette.cpp
// Purpose: wxPalette
// Author: Julian Smart
// Modified by:
// 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"
#if wxUSE_PALETTE
-#ifndef WX_PRECOMP
- #include "wx/palette.h"
-#endif
+#include "wx/palette.h"
#include "wx/msw/private.h"
+// ============================================================================
+// wxPaletteRefData
+// ============================================================================
+
+class WXDLLEXPORT wxPaletteRefData: public wxGDIRefData
+{
+public:
+ wxPaletteRefData() { Init(); }
+
+ wxPaletteRefData(int n,
+ unsigned char *red,
+ unsigned char *green,
+ unsigned char *blue)
+ {
+ Init();
+
+ LOGPALETTE *pPal = Alloc(n);
+ if ( !pPal )
+ return;
+
+ for ( int i = 0; i < n; i++ )
+ {
+ pPal->palPalEntry[i].peRed = red[i];
+ pPal->palPalEntry[i].peGreen = green[i];
+ pPal->palPalEntry[i].peBlue = blue[i];
+ pPal->palPalEntry[i].peFlags = 0;
+ }
+
+ m_hPalette = ::CreatePalette(pPal);
+ free(pPal);
+ }
+
+ wxPaletteRefData(const wxPaletteRefData& data)
+ : wxGDIRefData()
+ {
+ Init();
+
+ const UINT n = data.GetEntries();
+ if ( !n )
+ return;
+
+ LOGPALETTE *pPal = Alloc(n);
+ if ( !pPal )
+ return;
+
+ if ( ::GetPaletteEntries(data.m_hPalette, 0, n, pPal->palPalEntry) )
+ m_hPalette = ::CreatePalette(pPal);
+
+ free(pPal);
+ }
+
+ virtual ~wxPaletteRefData()
+ {
+ if ( m_hPalette )
+ ::DeleteObject(m_hPalette);
+ }
+
+ virtual bool IsOk() const { return m_hPalette != 0; }
+
+ UINT GetEntries() const
+ {
+ return ::GetPaletteEntries(m_hPalette, 0, 0, NULL);
+ }
+
+private:
+ // caller must free() the pointer
+ static LOGPALETTE *Alloc(UINT numEntries)
+ {
+ LOGPALETTE *pPal = (LOGPALETTE *)
+ malloc(sizeof(LOGPALETTE) + numEntries*sizeof(PALETTEENTRY));
+ if ( pPal )
+ {
+ pPal->palVersion = 0x300;
+ pPal->palNumEntries = numEntries;
+ }
+
+ return pPal;
+ }
+
+ void Init() { m_hPalette = 0; }
+
+ HPALETTE m_hPalette;
+
+ friend class WXDLLIMPEXP_FWD_CORE wxPalette;
+};
+
+// ============================================================================
+// wxPalette
+// ============================================================================
+
IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject)
-/*
- * Palette
- *
- */
+#define M_PALETTEDATA ((wxPaletteRefData *)m_refData)
-wxPaletteRefData::wxPaletteRefData(void)
+bool wxPalette::Create(int n,
+ unsigned char *red,
+ unsigned char *green,
+ unsigned char *blue)
{
- m_hPalette = 0;
-}
+ m_refData = new wxPaletteRefData(n, red, green, blue);
-wxPaletteRefData::~wxPaletteRefData(void)
-{
- if ( m_hPalette )
- ::DeleteObject((HPALETTE) m_hPalette);
+ return IsOk();
}
-wxPalette::wxPalette(void)
+wxGDIRefData *wxPalette::CreateGDIRefData() const
{
+ return new wxPaletteRefData;
}
-wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
+wxGDIRefData *wxPalette::CloneGDIRefData(const wxGDIRefData *data) const
{
- Create(n, red, green, blue);
+ return new wxPaletteRefData(*static_cast<const wxPaletteRefData *>(data));
}
-wxPalette::~wxPalette(void)
+int wxPalette::GetColoursCount() const
{
-// FreeResource(true);
+ return IsOk() ? M_PALETTEDATA->GetEntries() : 0;
}
-bool wxPalette::FreeResource(bool WXUNUSED(force))
+int wxPalette::GetPixel(unsigned char red,
+ unsigned char green,
+ unsigned char blue) const
{
- if ( M_PALETTEDATA && M_PALETTEDATA->m_hPalette)
- {
- DeleteObject((HPALETTE)M_PALETTEDATA->m_hPalette);
- }
- return true;
+ if ( !m_refData )
+ return wxNOT_FOUND;
+
+ return ::GetNearestPaletteIndex(M_PALETTEDATA->m_hPalette,
+ PALETTERGB(red, green, blue));
}
-bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
+bool wxPalette::GetRGB(int index,
+ unsigned char *red,
+ unsigned char *green,
+ unsigned char *blue) const
{
- UnRef();
-
-#if defined(__WXMICROWIN__)
-
- return false;
-
-#else
-
- m_refData = new wxPaletteRefData;
+ if ( !m_refData )
+ return false;
- NPLOGPALETTE npPal = (NPLOGPALETTE)LocalAlloc(LMEM_FIXED, sizeof(LOGPALETTE) +
- (WORD)n * sizeof(PALETTEENTRY));
- if (!npPal)
- return false;
+ if (index < 0 || index > 255)
+ return false;
- npPal->palVersion = 0x300;
- npPal->palNumEntries = n;
+ PALETTEENTRY entry;
+ if ( !::GetPaletteEntries(M_PALETTEDATA->m_hPalette, index, 1, &entry) )
+ return false;
- 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;
+ *red = entry.peRed;
+ *green = entry.peGreen;
+ *blue = entry.peBlue;
-#endif
-}
-
-int wxPalette::GetPixel(const unsigned char red, const unsigned char green, const unsigned char blue) const
-{
-#ifdef __WXMICROWIN__
- return 0;
-#else
- if ( !m_refData )
- return 0;
-
- return ::GetNearestPaletteIndex((HPALETTE) M_PALETTEDATA->m_hPalette, PALETTERGB(red, green, blue));
-#endif
+ return true;
}
-bool wxPalette::GetRGB(int index, unsigned char *red, unsigned char *green, unsigned char *blue) const
+WXHPALETTE wxPalette::GetHPALETTE() const
{
-#ifdef __WXMICROWIN__
- 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;
-#endif
+ return M_PALETTEDATA ? (WXHPALETTE)M_PALETTEDATA->m_hPalette : 0;
}
void wxPalette::SetHPALETTE(WXHPALETTE pal)
{
- if ( !m_refData )
- m_refData = new wxPaletteRefData;
+ AllocExclusive();
- M_PALETTEDATA->m_hPalette = pal;
+ M_PALETTEDATA->m_hPalette = (HPALETTE)pal;
}
#endif // wxUSE_PALETTE
-
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