////////////////////////////////////////////////////////////////////////////
-// Name: bitmap.cpp
+// Name: src/msw/bitmap.cpp
// Purpose: wxBitmap
// Author: Julian Smart
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma implementation "bitmap.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#include "wx/bitmap.h"
+
#ifndef WX_PRECOMP
#include <stdio.h>
#include "wx/app.h"
#include "wx/palette.h"
#include "wx/dcmemory.h"
- #include "wx/bitmap.h"
#include "wx/icon.h"
+ #include "wx/log.h"
+ #include "wx/image.h"
#endif
#include "wx/msw/private.h"
-#include "wx/log.h"
#if wxUSE_WXDIB
-#include "wx/msw/dib.h"
+ #include "wx/msw/dib.h"
#endif
-#include "wx/image.h"
-#include "wx/xpmdecod.h"
-
#ifdef wxHAVE_RAW_BITMAP
-#include "wx/rawbmp.h"
+ #include "wx/rawbmp.h"
#endif
// missing from mingw32 header
m_selectedInto = NULL;
#endif
- // can't copy the mask as the other bitmap destroys it
+ // (deep) copy the mask if present
m_bitmapMask = NULL;
+ if (data.m_bitmapMask)
+ m_bitmapMask = new wxMask(*data.m_bitmapMask);
+
+ // FIXME: we don't copy m_hBitmap currently but we should, see wxBitmap::
+ // CloneRefData()
wxASSERT_MSG( !data.m_isDIB,
_T("can't copy bitmap locked for raw access!") );
// wxBitmap creation
// ----------------------------------------------------------------------------
-// this function should be called from all wxBitmap ctors
-void wxBitmap::Init()
-{
- // m_refData = NULL; done in the base class ctor
-}
-
wxGDIImageRefData *wxBitmap::CreateData() const
{
return new wxBitmapRefData;
if ( !data )
return NULL;
+ // FIXME: this method is backwards, it should just create a new
+ // wxBitmapRefData using its copy ctor but instead it modifies this
+ // bitmap itself and then returns its m_refData -- which works, of
+ // course (except in !wxUSE_WXDIB), but is completely illogical
wxBitmap *self = wx_const_cast(wxBitmap *, this);
#if wxUSE_WXDIB
else
#endif // wxUSE_WXDIB
{
- // don't copy the bitmap data, but do copy the size, depth, ...
+ // copy the bitmap data
self->m_refData = new wxBitmapRefData(*data);
}
+ // copy also the mask
+ wxMask * const maskSrc = data->GetMask();
+ if ( maskSrc )
+ {
+ wxBitmapRefData *selfdata = wx_static_cast(wxBitmapRefData *, m_refData);
+
+ selfdata->SetMask(new wxMask(*maskSrc));
+ }
+
return m_refData;
}
-#ifdef __WIN32__
-
-bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon)
+bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
+ wxBitmapTransparency transp)
{
#if !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
// it may be either HICON or HCURSOR
refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor;
- // the mask returned by GetIconInfo() is inversed compared to the usual
- // wxWin convention
- refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h));
+ switch ( transp )
+ {
+ default:
+ wxFAIL_MSG( _T("unknown wxBitmapTransparency value") );
+ case wxBitmapTransparency_None:
+ // nothing to do, refData->m_hasAlpha is false by default
+ break;
+
+ case wxBitmapTransparency_Auto:
+#if wxUSE_WXDIB
+ // If the icon is 32 bits per pixel then it may have alpha channel
+ // data, although there are some icons that are 32 bpp but have no
+ // alpha... So convert to a DIB and manually check the 4th byte for
+ // each pixel.
+ {
+ BITMAP bm;
+ if ( ::GetObject(iconInfo.hbmColor, sizeof(bm), &bm) &&
+ (bm.bmBitsPixel == 32) )
+ {
+ wxDIB dib(iconInfo.hbmColor);
+ if (dib.IsOk())
+ {
+ const unsigned char* pixels = dib.GetData();
+ for (int idx = 0; idx < w*h*4; idx+=4)
+ {
+ if (pixels[idx+3] != 0)
+ {
+ // If there is an alpha byte that is non-zero
+ // then set the alpha flag and stop checking
+ refData->m_hasAlpha = true;
+ break;
+ }
+ }
+ }
+ }
+ }
+ break;
+#endif // wxUSE_WXDIB
+
+ case wxBitmapTransparency_Always:
+ refData->m_hasAlpha = true;
+ break;
+ }
+
+ if ( !refData->m_hasAlpha )
+ {
+ // the mask returned by GetIconInfo() is inverted compared to the usual
+ // wxWin convention
+ refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h));
+ }
// delete the old one now as we don't need it any more
::DeleteObject(iconInfo.hbmMask);
return true;
-#else
+#else // __WXMICROWIN__ || __WXWINCE__
wxUnusedVar(icon);
+ wxUnusedVar(transp);
+
return false;
-#endif
+#endif // !__WXWINCE__/__WXWINCE__
}
-#endif // Win32
-
-bool wxBitmap::CopyFromCursor(const wxCursor& cursor)
+bool wxBitmap::CopyFromCursor(const wxCursor& cursor, wxBitmapTransparency transp)
{
UnRef();
if ( !cursor.Ok() )
return false;
- return CopyFromIconOrCursor(cursor);
+ return CopyFromIconOrCursor(cursor, transp);
}
-bool wxBitmap::CopyFromIcon(const wxIcon& icon)
+bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp)
{
UnRef();
if ( !icon.Ok() )
return false;
- return CopyFromIconOrCursor(icon);
+ return CopyFromIconOrCursor(icon, transp);
}
#ifndef NEVER_USE_DIB
wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
{
- Init();
-
#ifndef __WXMICROWIN__
wxBitmapRefData *refData = new wxBitmapRefData;
m_refData = refData;
{
// we assume that it is in XBM format which is not quite the same as
// the format CreateBitmap() wants because the order of bytes in the
- // line is inversed!
+ // line is reversed!
const size_t bytesPerLine = (width + 7) / 8;
const size_t padding = bytesPerLine % 2;
const size_t len = height * ( padding + bytesPerLine );
for ( int bits = 0; bits < 8; bits++)
{
reversed <<= 1;
- reversed |= (val & 0x01);
+ reversed |= (unsigned char)(val & 0x01);
val >>= 1;
}
- *dst++ = reversed;
+ *dst++ = ~reversed;
}
if ( padding )
#endif
}
-// Create from XPM data
-bool wxBitmap::CreateFromXpm(const char **data)
-{
-#if wxUSE_IMAGE && wxUSE_XPM
- Init();
-
- wxCHECK_MSG( data != NULL, false, wxT("invalid bitmap data") )
-
- wxXPMDecoder decoder;
- wxImage img = decoder.ReadData(data);
- wxCHECK_MSG( img.Ok(), false, wxT("invalid bitmap data") )
-
- *this = wxBitmap(img);
- return true;
-#else
- wxUnusedVar(data);
- return false;
-#endif
-}
-
wxBitmap::wxBitmap(int w, int h, int d)
{
- Init();
-
(void)Create(w, h, d);
}
wxBitmap::wxBitmap(int w, int h, const wxDC& dc)
{
- Init();
-
(void)Create(w, h, dc);
}
-wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
+wxBitmap::wxBitmap(const void* data, long type, int width, int height, int depth)
{
- Init();
-
(void)Create(data, type, width, height, depth);
}
wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
{
- Init();
-
LoadFile(filename, (int)type);
}
// wxImage to/from conversions
// ----------------------------------------------------------------------------
-#if wxUSE_WXDIB
-
bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
{
return CreateFromImage(image, depth, 0);
return CreateFromImage(image, -1, dc.GetHDC());
}
+#if wxUSE_WXDIB
+
bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
{
wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
if ( !dib.IsOk() )
return false;
+ if ( depth == -1 )
+ depth = dib.GetDepth(); // Get depth from image if none specified
// store the bitmap parameters
wxBitmapRefData *refData = new wxBitmapRefData;
hbitmap = dib.Detach();
refData->m_isDIB = true;
- refData->m_depth = dib.GetDepth();
+ refData->m_depth = depth;
}
#ifndef ALWAYS_USE_DIB
else // we need to convert DIB to DDB
{
hbitmap = dib.CreateDDB((HDC)hdc);
- refData->m_depth = depth == -1 ? dib.GetDepth() : depth;
+ refData->m_depth = depth;
}
#endif // !ALWAYS_USE_DIB
// finally also set the mask if we have one
if ( image.HasMask() )
{
- SetMask(new wxMask(*this, wxColour(image.GetMaskRed(),
- image.GetMaskGreen(),
- image.GetMaskBlue())));
+ const size_t len = 2*((w+15)/16);
+ BYTE *src = image.GetData();
+ BYTE *data = new BYTE[h*len];
+ memset(data, 0, h*len);
+ BYTE r = image.GetMaskRed(),
+ g = image.GetMaskGreen(),
+ b = image.GetMaskBlue();
+ BYTE *dst = data;
+ for ( int y = 0; y < h; y++, dst += len )
+ {
+ BYTE *dstLine = dst;
+ BYTE mask = 0x80;
+ for ( int x = 0; x < w; x++, src += 3 )
+ {
+ if (src[0] != r || src[1] != g || src[2] != b)
+ *dstLine |= mask;
+
+ if ( (mask >>= 1) == 0 )
+ {
+ dstLine++;
+ mask = 0x80;
+ }
+ }
+ }
+
+ hbitmap = ::CreateBitmap(w, h, 1, 1, data);
+ if ( !hbitmap )
+ {
+ wxLogLastError(_T("CreateBitmap(mask)"));
+ }
+ else
+ {
+ SetMask(new wxMask((WXHBITMAP)hbitmap));
+ }
+
+ delete[] data;
}
return true;
return image;
}
-#endif // wxUSE_WXDIB
+#else // !wxUSE_WXDIB
+
+bool
+wxBitmap::CreateFromImage(const wxImage& WXUNUSED(image),
+ int WXUNUSED(depth),
+ WXHDC WXUNUSED(hdc))
+{
+ return false;
+}
+
+wxImage wxBitmap::ConvertToImage() const
+{
+ return wxImage();
+}
+
+#endif // wxUSE_WXDIB/!wxUSE_WXDIB
#endif // wxUSE_IMAGE
return handler->LoadFile(this, filename, type, -1, -1);
}
-#if wxUSE_IMAGE
+#if wxUSE_IMAGE && wxUSE_WXDIB
else // no bitmap handler found
{
wxImage image;
return false;
}
-bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
+bool wxBitmap::Create(const void* data, long type, int width, int height, int depth)
{
UnRef();
{
return handler->SaveFile(this, filename, type, palette);
}
-#if wxUSE_IMAGE
+#if wxUSE_IMAGE && wxUSE_WXDIB
else // no bitmap handler found
{
// FIXME what about palette? shouldn't we use it?
// ----------------------------------------------------------------------------
// sub bitmap extraction
// ----------------------------------------------------------------------------
+wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect ) const
+{
+ MemoryHDC dcSrc;
+ SelectInHDC selectSrc(dcSrc, GetHbitmap());
+ return GetSubBitmapOfHDC( rect, (WXHDC)dcSrc );
+}
-wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
+wxBitmap wxBitmap::GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const
{
wxCHECK_MSG( Ok() &&
(rect.x >= 0) && (rect.y >= 0) &&
(rect.y+rect.height <= GetHeight()),
wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
- wxBitmap ret( rect.width, rect.height );
+ wxBitmap ret( rect.width, rect.height, GetDepth() );
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
#ifndef __WXMICROWIN__
- // TODO: copy alpha channel data if any
+ // handle alpha channel, if any
+ if (HasAlpha())
+ ret.UseAlpha();
// copy bitmap data
MemoryHDC dcSrc,
dcDst;
{
- SelectInHDC selectSrc(dcSrc, GetHbitmap()),
- selectDst(dcDst, GetHbitmapOf(ret));
-
- if ( !selectSrc || !selectDst )
+ SelectInHDC selectDst(dcDst, GetHbitmapOf(ret));
+
+ if ( !selectDst )
{
- wxLogLastError(_T("SelectObjct(hBitmap)"));
+ wxLogLastError(_T("SelectObject(destBitmap)"));
}
if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height,
- dcSrc, rect.x, rect.y, SRCCOPY) )
+ (HDC)hdc, rect.x, rect.y, SRCCOPY) )
{
wxLogLastError(_T("BitBlt"));
}
return GetBitmapData() ? GetBitmapData()->GetMask() : (wxMask *) NULL;
}
+wxBitmap wxBitmap::GetMaskBitmap() const
+{
+ wxBitmap bmp;
+ wxMask *mask = GetMask();
+ if ( mask )
+ bmp.SetHBITMAP(mask->GetMaskBitmap());
+ return bmp;
+}
+
#ifdef __WXDEBUG__
wxDC *wxBitmap::GetSelectedInto() const
#endif
-#if WXWIN_COMPATIBILITY_2_4
-
-int wxBitmap::GetQuality() const
-{
- return 0;
-}
-
-#endif // WXWIN_COMPATIBILITY_2_4
-
void wxBitmap::UseAlpha()
{
if ( GetBitmapData() )
GetBitmapData()->SetMask(mask);
}
-#if WXWIN_COMPATIBILITY_2_4
-
-void wxBitmap::SetQuality(int WXUNUSED(quality))
-{
-}
-
-#endif // WXWIN_COMPATIBILITY_2_4
-
// ----------------------------------------------------------------------------
// raw bitmap access support
// ----------------------------------------------------------------------------
HBITMAP hDIB;
if ( !GetBitmapData()->m_isDIB )
{
- wxCHECK_MSG( !GetBitmapData()->m_dib, FALSE,
+ wxCHECK_MSG( !GetBitmapData()->m_dib, NULL,
_T("GetRawData() may be called only once") );
wxDIB *dib = new wxDIB(*this);
data.m_height = h;
// remember that DIBs are stored in top to bottom order!
- const LONG bytesPerRow = ds.dsBm.bmWidthBytes;
+ // (We can't just use ds.dsBm.bmWidthBytes here, because it isn't always a
+ // multiple of 2, as required by the documentation. So we use the official
+ // formula, which we already use elsewhere.)
+ const LONG bytesPerRow =
+ wxDIB::GetLineSize(ds.dsBm.bmWidth, ds.dsBm.bmBitsPixel);
data.m_stride = -bytesPerRow;
char *bits = (char *)ds.dsBm.bmBits;
if ( !Ok() )
return;
- // the cast is ugly but we can't do without it and without making this
- // function template (and hence inline) unfortunately
- typedef wxPixelData<wxBitmap, wxAlphaPixelFormat> PixelData;
- PixelData& data = (PixelData &)dataBase;
-
- if ( !data )
+ if ( !&dataBase )
{
// invalid data, don't crash -- but don't assert neither as we're
// called automatically from wxPixelDataBase dtor and so there is no
return;
}
- if ( GetBitmapData()->m_hasAlpha )
- {
- // AlphaBlend() wants to have premultiplied source alpha but
- // wxRawBitmap API uses normal, not premultiplied, colours, so adjust
- // them here now
- PixelData::Iterator p(data);
-
- const int w = data.GetWidth();
- const int h = data.GetHeight();
-
- for ( int y = 0; y < h; y++ )
- {
- PixelData::Iterator rowStart = p;
-
- for ( int x = 0; x < w; x++ )
- {
- const unsigned alpha = p.Alpha();
-
- p.Red() = (p.Red() * alpha + 127) / 255;
- p.Blue() = (p.Blue() * alpha + 127) / 255;
- p.Green() = (p.Green() * alpha + 127) / 255;
-
- ++p;
- }
-
- p = rowStart;
- p.OffsetY(data, 1);
- }
- }
-
// if we're a DDB we need to convert DIB back to DDB now to make the
// changes made via raw bitmap access effective
if ( !GetBitmapData()->m_isDIB )
m_maskBitmap = 0;
}
+// Copy constructor
+wxMask::wxMask(const wxMask &mask)
+ : wxObject()
+{
+ BITMAP bmp;
+
+ HDC srcDC = CreateCompatibleDC(0);
+ HDC destDC = CreateCompatibleDC(0);
+
+ // GetBitmapDimensionEx won't work if SetBitmapDimensionEx wasn't used
+ // so we'll use GetObject() API here:
+ if (::GetObject((HGDIOBJ)mask.m_maskBitmap, sizeof(bmp), &bmp) == 0)
+ {
+ wxFAIL_MSG(wxT("Cannot retrieve the dimensions of the wxMask to copy"));
+ return;
+ }
+
+ // create our HBITMAP
+ int w = bmp.bmWidth, h = bmp.bmHeight;
+ m_maskBitmap = (WXHBITMAP)CreateCompatibleBitmap(srcDC, w, h);
+
+ // copy the mask's HBITMAP into our HBITMAP
+ SelectObject(srcDC, (HBITMAP) mask.m_maskBitmap);
+ SelectObject(destDC, (HBITMAP) m_maskBitmap);
+
+ BitBlt(destDC, 0, 0, w, h, srcDC, 0, 0, SRCCOPY);
+
+ SelectObject(srcDC, 0);
+ DeleteDC(srcDC);
+ SelectObject(destDC, 0);
+ DeleteDC(destDC);
+}
+
// Construct a mask from a bitmap and a colour indicating
// the transparent area
wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
// ----------------------------------------------------------------------------
bool wxBitmapHandler::Create(wxGDIImage *image,
- void *data,
+ const void* data,
long flags,
int width, int height, int depth)
{
wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
- return bitmap ? Create(bitmap, data, flags, width, height, depth) : false;
+ return bitmap && Create(bitmap, data, flags, width, height, depth);
}
bool wxBitmapHandler::Load(wxGDIImage *image,
{
wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
- return bitmap ? LoadFile(bitmap, name, flags, width, height) : false;
+ return bitmap && LoadFile(bitmap, name, flags, width, height);
}
bool wxBitmapHandler::Save(wxGDIImage *image,
{
wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
- return bitmap ? SaveFile(bitmap, name, type) : false;
+ return bitmap && SaveFile(bitmap, name, type);
}
bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap),
- void *WXUNUSED(data),
+ const void* WXUNUSED(data),
long WXUNUSED(type),
int WXUNUSED(width),
int WXUNUSED(height),
return false;
}
-// ----------------------------------------------------------------------------
-// DIB functions
-// ----------------------------------------------------------------------------
-
-#ifndef __WXMICROWIN__
-bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel,
- HPALETTE hPal, LPBITMAPINFO* lpDIBHeader)
-{
- unsigned long i, headerSize;
-
- // Allocate space for a DIB header
- headerSize = (sizeof(BITMAPINFOHEADER) + (256 * sizeof(PALETTEENTRY)));
- LPBITMAPINFO lpDIBheader = (BITMAPINFO *) malloc(headerSize);
- LPPALETTEENTRY lpPe = (PALETTEENTRY *)((BYTE*)lpDIBheader + sizeof(BITMAPINFOHEADER));
-
- GetPaletteEntries(hPal, 0, 256, lpPe);
-
- memset(lpDIBheader, 0x00, sizeof(BITMAPINFOHEADER));
-
- // Fill in the static parts of the DIB header
- lpDIBheader->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
- lpDIBheader->bmiHeader.biWidth = xSize;
- lpDIBheader->bmiHeader.biHeight = ySize;
- lpDIBheader->bmiHeader.biPlanes = 1;
-
- // this value must be 1, 4, 8 or 24 so PixelDepth can only be
- lpDIBheader->bmiHeader.biBitCount = (WORD)(bitsPerPixel);
- lpDIBheader->bmiHeader.biCompression = BI_RGB;
- lpDIBheader->bmiHeader.biSizeImage = xSize * abs(ySize) * bitsPerPixel >> 3;
- lpDIBheader->bmiHeader.biClrUsed = 256;
-
-
- // Initialize the DIB palette
- for (i = 0; i < 256; i++) {
- lpDIBheader->bmiColors[i].rgbReserved = lpPe[i].peFlags;
- lpDIBheader->bmiColors[i].rgbRed = lpPe[i].peRed;
- lpDIBheader->bmiColors[i].rgbGreen = lpPe[i].peGreen;
- lpDIBheader->bmiColors[i].rgbBlue = lpPe[i].peBlue;
- }
-
- *lpDIBHeader = lpDIBheader;
-
- return true;
-}
-
-void wxFreeDIB(LPBITMAPINFO lpDIBHeader)
-{
- free(lpDIBHeader);
-}
-#endif
-
// ----------------------------------------------------------------------------
// global helper functions implemented here
// ----------------------------------------------------------------------------
return 0;
}
- wxMask *mask = bmp.GetMask();
+ if ( bmp.HasAlpha() )
+ {
+ // Create an empty mask bitmap.
+ // it doesn't seem to work if we mess with the mask at all.
+ HBITMAP hMonoBitmap = CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL);
+
+ ICONINFO iconInfo;
+ wxZeroMemory(iconInfo);
+ iconInfo.fIcon = iconWanted; // do we want an icon or a cursor?
+ if ( !iconWanted )
+ {
+ iconInfo.xHotspot = hotSpotX;
+ iconInfo.yHotspot = hotSpotY;
+ }
+
+ iconInfo.hbmMask = hMonoBitmap;
+ iconInfo.hbmColor = GetHbitmapOf(bmp);
+
+ HICON hicon = ::CreateIconIndirect(&iconInfo);
+
+ ::DeleteObject(hMonoBitmap);
+
+ return hicon;
+ }
+
+ wxMask* mask = bmp.GetMask();
+
if ( !mask )
{
// we must have a mask for an icon, so even if it's probably incorrect,
HICON hicon = ::CreateIconIndirect(&iconInfo);
- if ( !bmp.GetMask() )
+ if ( !bmp.GetMask() && !bmp.HasAlpha() )
{
// we created the mask, now delete it
delete mask;
projects / wxWidgets.git / blobdiff