X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/452418c4b0763eb611432e84f077c9766e282057..99d21c0e1f8d87570702c52dccd3ad698f0a0931:/src/msw/bitmap.cpp diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp index f6e6b1820f..f3221c6e73 100644 --- a/src/msw/bitmap.cpp +++ b/src/msw/bitmap.cpp @@ -45,8 +45,6 @@ #include "wx/msw/dib.h" #endif -#include "wx/xpmdecod.h" - #ifdef wxHAVE_RAW_BITMAP #include "wx/rawbmp.h" #endif @@ -207,8 +205,13 @@ wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data) 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!") ); @@ -254,6 +257,10 @@ wxObjectRefData *wxBitmap::CloneRefData(const wxObjectRefData *dataOrig) const 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 @@ -266,16 +273,24 @@ wxObjectRefData *wxBitmap::CloneRefData(const wxObjectRefData *dataOrig) const 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 @@ -301,31 +316,51 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor; + 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(BITMAP), (LPVOID)&bm) - && bm.bmBitsPixel == 32) - { - wxDIB dib(iconInfo.hbmColor); - if (dib.IsOk()) - { - unsigned char* pixels = dib.GetData(); - for (int idx=0; idxm_hasAlpha = true; - break; + 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; } -#endif + if ( !refData->m_hasAlpha ) { // the mask returned by GetIconInfo() is inverted compared to the usual @@ -337,32 +372,32 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) ::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 @@ -1054,8 +1089,14 @@ bool wxBitmap::SaveFile(const wxString& filename, // ---------------------------------------------------------------------------- // 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) && @@ -1076,16 +1117,15 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const 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")); } @@ -1148,15 +1188,6 @@ 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() ) @@ -1200,14 +1231,6 @@ void wxBitmap::SetMask(wxMask *mask) GetBitmapData()->SetMask(mask); } -#if WXWIN_COMPATIBILITY_2_4 - -void wxBitmap::SetQuality(int WXUNUSED(quality)) -{ -} - -#endif // WXWIN_COMPATIBILITY_2_4 - // ---------------------------------------------------------------------------- // raw bitmap access support // ---------------------------------------------------------------------------- @@ -1329,6 +1352,39 @@ wxMask::wxMask() 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) @@ -1522,56 +1578,32 @@ bool wxBitmapHandler::Save(wxGDIImage *image, return bitmap && SaveFile(bitmap, name, type); } -// ---------------------------------------------------------------------------- -// DIB functions -// ---------------------------------------------------------------------------- - -#ifndef __WXMICROWIN__ -bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, - HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) +bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), + const void* WXUNUSED(data), + long WXUNUSED(type), + int WXUNUSED(width), + int WXUNUSED(height), + int WXUNUSED(depth)) { - 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 false; +} - return true; +bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + long WXUNUSED(type), + int WXUNUSED(desiredWidth), + int WXUNUSED(desiredHeight)) +{ + return false; } -void wxFreeDIB(LPBITMAPINFO lpDIBHeader) +bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), + const wxString& WXUNUSED(name), + int WXUNUSED(type), + const wxPalette *WXUNUSED(palette)) { - free(lpDIBHeader); + return false; } -#endif // ---------------------------------------------------------------------------- // global helper functions implemented here