#include "wx/icon.h"
#endif
+//#include "device.h"
+
#include "wx/msw/private.h"
#include "wx/log.h"
if ( m_hBitmap)
{
+ // printf("About to delete bitmap %d\n", (int) (HBITMAP) m_hBitmap);
+#if 1
if ( !::DeleteObject((HBITMAP)m_hBitmap) )
{
wxLogLastError(wxT("DeleteObject(hbitmap)"));
}
+#endif
}
delete m_bitmapMask;
bool wxBitmap::Create(int w, int h, int d)
{
-#ifndef __WXMICROWIN__
UnRef();
m_refData = new wxBitmapRefData;
GetBitmapData()->m_depth = d;
HBITMAP hbmp;
-
+#ifndef __WXMICROWIN__
if ( d > 0 )
{
hbmp = ::CreateBitmap(w, h, 1, d, NULL);
}
}
else
+#endif
{
ScreenHDC dc;
hbmp = ::CreateCompatibleBitmap(dc, w, h);
GetBitmapData()->m_ok = hbmp != 0;
#endif // WXWIN_COMPATIBILITY_2
return Ok();
-#else
- return FALSE;
-#endif
}
// ----------------------------------------------------------------------------
bool wxBitmap::CreateFromImage( const wxImage& image, int depth )
{
#ifdef __WXMICROWIN__
- // TODO
- return FALSE;
+
+ // Set this to 1 to experiment with mask code,
+ // which currently doesn't work
+#define USE_MASKS 0
+
+ m_refData = new wxBitmapRefData();
+
+ // Initial attempt at a simple-minded implementation.
+ // The bitmap will always be created at the screen depth,
+ // so the 'depth' argument is ignored.
+
+ HDC hScreenDC = ::GetDC(NULL);
+ // printf("Screen planes = %d, bpp = %d\n", hScreenDC->psd->planes, hScreenDC->psd->bpp);
+ int screenDepth = ::GetDeviceCaps(hScreenDC, BITSPIXEL);
+
+ HBITMAP hBitmap = ::CreateCompatibleBitmap(hScreenDC, image.GetWidth(), image.GetHeight());
+ HBITMAP hMaskBitmap = NULL;
+ HBITMAP hOldMaskBitmap = NULL;
+ HDC hMaskDC = NULL;
+ unsigned char maskR = 0;
+ unsigned char maskG = 0;
+ unsigned char maskB = 0;
+
+ // printf("Created bitmap %d\n", (int) hBitmap);
+ if (hBitmap == NULL)
+ {
+ ::ReleaseDC(NULL, hScreenDC);
+ return FALSE;
+ }
+ HDC hMemDC = ::CreateCompatibleDC(hScreenDC);
+
+ HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap);
+ ::ReleaseDC(NULL, hScreenDC);
+
+ // created an mono-bitmap for the possible mask
+ bool hasMask = image.HasMask();
+
+ if ( hasMask )
+ {
+#if USE_MASKS
+ // FIXME: we should be able to pass bpp = 1, but
+ // GdBlit can't handle a different depth
+#if 0
+ hMaskBitmap = ::CreateBitmap( (WORD)image.GetWidth(), (WORD)image.GetHeight(), 1, 1, NULL );
+#else
+ hMaskBitmap = ::CreateCompatibleBitmap( hMemDC, (WORD)image.GetWidth(), (WORD)image.GetHeight());
+#endif
+ maskR = image.GetMaskRed();
+ maskG = image.GetMaskGreen();
+ maskB = image.GetMaskBlue();
+
+ if (!hMaskBitmap)
+ {
+ hasMask = FALSE;
+ }
+ else
+ {
+ hScreenDC = ::GetDC(NULL);
+ hMaskDC = ::CreateCompatibleDC(hScreenDC);
+ ::ReleaseDC(NULL, hScreenDC);
+
+ hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap);
+ }
+#else
+ hasMask = FALSE;
+#endif
+ }
+
+ int i, j;
+ for (i = 0; i < image.GetWidth(); i++)
+ {
+ for (j = 0; j < image.GetHeight(); j++)
+ {
+ unsigned char red = image.GetRed(i, j);
+ unsigned char green = image.GetGreen(i, j);
+ unsigned char blue = image.GetBlue(i, j);
+
+ ::SetPixel(hMemDC, i, j, PALETTERGB(red, green, blue));
+
+ if (hasMask)
+ {
+ // scan the bitmap for the transparent colour and set the corresponding
+ // pixels in the mask to BLACK and the rest to WHITE
+ if (maskR == red && maskG == green && maskB == blue)
+ ::SetPixel(hMaskDC, i, j, PALETTERGB(0, 0, 0));
+ else
+ ::SetPixel(hMaskDC, i, j, PALETTERGB(255, 255, 255));
+ }
+ }
+ }
+
+ ::SelectObject(hMemDC, hOldBitmap);
+ ::DeleteDC(hMemDC);
+ if (hasMask)
+ {
+ ::SelectObject(hMaskDC, hOldMaskBitmap);
+ ::DeleteDC(hMaskDC);
+
+ ((wxBitmapRefData*)m_refData)->m_bitmapMask = new wxMask((WXHBITMAP) hMaskBitmap);
+ }
+
+ SetWidth(image.GetWidth());
+ SetHeight(image.GetHeight());
+ SetDepth(screenDepth);
+ SetHBITMAP( (WXHBITMAP) hBitmap );
+
+#if wxUSE_PALETTE
+ // Copy the palette from the source image
+ SetPalette(image.GetPalette());
+#endif // wxUSE_PALETTE
+
+#if WXWIN_COMPATIBILITY_2
+ // check the wxBitmap object
+ GetBitmapData()->SetOk();
+#endif // WXWIN_COMPATIBILITY_2
+
+ return TRUE;
+
#else
wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") )
if (depth == -1) depth = wxDisplayDepth();
SetDepth( depth );
+#if wxUSE_PALETTE
// Copy the palette from the source image
SetPalette(image.GetPalette());
+#endif // wxUSE_PALETTE
// create a DIB header
int headersize = sizeof(BITMAPINFOHEADER);
wxImage wxBitmap::ConvertToImage() const
{
#ifdef __WXMICROWIN__
- // TODO
- return wxImage();
-#else
+ // Initial attempt at a simple-minded implementation.
+ // The bitmap will always be created at the screen depth,
+ // so the 'depth' argument is ignored.
+ // TODO: transparency (create a mask image)
+
+ if (!Ok())
+ {
+ wxFAIL_MSG( wxT("bitmap is invalid") );
+ return wxNullImage;
+ }
+
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
+
+ // create an wxImage object
+ int width = GetWidth();
+ int height = GetHeight();
+ image.Create( width, height );
+ unsigned char *data = image.GetData();
+ if( !data )
+ {
+ wxFAIL_MSG( wxT("could not allocate data for image") );
+ return wxNullImage;
+ }
+
+ HDC hScreenDC = ::GetDC(NULL);
+
+ HDC hMemDC = ::CreateCompatibleDC(hScreenDC);
+ ::ReleaseDC(NULL, hScreenDC);
+
+ HBITMAP hBitmap = (HBITMAP) GetHBITMAP();
+
+ HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap);
+
+ int i, j;
+ for (i = 0; i < GetWidth(); i++)
+ {
+ for (j = 0; j < GetHeight(); j++)
+ {
+ COLORREF color = ::GetPixel(hMemDC, i, j);
+ unsigned char red = GetRValue(color);
+ unsigned char green = GetGValue(color);
+ unsigned char blue = GetBValue(color);
+
+ image.SetRGB(i, j, red, green, blue);
+ }
+ }
+
+ ::SelectObject(hMemDC, hOldBitmap);
+ ::DeleteDC(hMemDC);
+
+#if wxUSE_PALETTE
+ // Copy the palette from the source image
+ if (GetPalette())
+ image.SetPalette(* GetPalette());
+#endif // wxUSE_PALETTE
+
+ return image;
+
+#else // __MICROWIN__
+
wxImage image;
wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
wxImage image;
if ( image.LoadFile( filename, type ) && image.Ok() )
{
- *this = image.ConvertToBitmap();
+ *this = wxBitmap(image);
return TRUE;
}
else
{
// FIXME what about palette? shouldn't we use it?
- wxImage image( *this );
+ wxImage image = ConvertToImage();
if ( image.Ok() )
{
return image.SaveFile(filename, type);
wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
{
-#ifndef __WXMICROWIN__
wxCHECK_MSG( Ok() &&
(rect.x >= 0) && (rect.y >= 0) &&
(rect.x+rect.width <= GetWidth()) &&
wxBitmap ret( rect.width, rect.height, GetDepth() );
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
+#ifndef __WXMICROWIN__
// copy bitmap data
- HDC dcSrc = ::CreateCompatibleDC(NULL);
- HDC dcDst = ::CreateCompatibleDC(NULL);
- SelectObject(dcSrc, (HBITMAP) GetHBITMAP());
- SelectObject(dcDst, (HBITMAP) ret.GetHBITMAP());
- BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY);
+ MemoryHDC dcSrc, dcDst;
+
+ {
+ SelectInHDC selectSrc(dcSrc, GetHbitmap()),
+ selectDst(dcDst, GetHbitmapOf(ret));
+
+ if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height,
+ dcSrc, rect.x, rect.y, SRCCOPY) )
+ {
+ wxLogLastError(_T("BitBlt"));
+ }
+ }
// copy mask if there is one
- if (GetMask())
+ if ( GetMask() )
{
HBITMAP hbmpMask = ::CreateBitmap(rect.width, rect.height, 1, 1, 0);
- SelectObject(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap());
- SelectObject(dcDst, (HBITMAP) hbmpMask);
- BitBlt(dcDst, 0, 0, rect.width, rect.height, dcSrc, rect.x, rect.y, SRCCOPY);
+ SelectInHDC selectSrc(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap()),
+ selectDst(dcDst, hbmpMask);
+
+ if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height,
+ dcSrc, rect.x, rect.y, SRCCOPY) )
+ {
+ wxLogLastError(_T("BitBlt"));
+ }
wxMask *mask = new wxMask((WXHBITMAP) hbmpMask);
ret.SetMask(mask);
}
-
- SelectObject(dcDst, NULL);
- SelectObject(dcSrc, NULL);
- DeleteDC(dcDst);
- DeleteDC(dcSrc);
+#endif // !__WXMICROWIN__
return ret;
-#else
- return wxBitmap();
-#endif
}
// ----------------------------------------------------------------------------
wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const
{
#ifdef __WXMICROWIN__
- return wxBitmap();
+ return *this;
#else
wxMemoryDC memDC;
wxBitmap tmpBitmap(GetWidth(), GetHeight(), dc.GetDepth());
// scan the bitmap for the transparent colour and set the corresponding
// pixels in the mask to BLACK and the rest to WHITE
- COLORREF maskColour = RGB(colour.Red(), colour.Green(), colour.Blue());
+ COLORREF maskColour = wxColourToPalRGB(colour);
m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0);
HDC srcDC = ::CreateCompatibleDC(NULL);
ok = FALSE;
}
- // this is not very efficient, but I can't think of a better way of doing
- // it
- for ( int w = 0; ok && (w < width); w++ )
+ if ( ok )
{
- for ( int h = 0; ok && (h < height); h++ )
- {
- COLORREF col = GetPixel(srcDC, w, h);
- if ( col == CLR_INVALID )
- {
- wxLogLastError(wxT("GetPixel"));
-
- // doesn't make sense to continue
- ok = FALSE;
-
- break;
- }
-
- if ( col == maskColour )
- {
- ::SetPixel(destDC, w, h, RGB(0, 0, 0));
- }
- else
- {
- ::SetPixel(destDC, w, h, RGB(255, 255, 255));
- }
- }
+ // this will create a monochrome bitmap with 0 points for the pixels
+ // which have the same value as the background colour and 1 for the
+ // others
+ ::SetBkColor(srcDC, maskColour);
+ ::BitBlt(destDC, 0, 0, width, height, srcDC, 0, 0, NOTSRCCOPY);
}
::SelectObject(srcDC, hbmpSrcOld);
::DeleteDC(destDC);
return ok;
-#else
+#else // __WXMICROWIN__
return FALSE;
-#endif
+#endif // __WXMICROWIN__/!__WXMICROWIN__
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff