X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/70cd62e95ce3f56d2e219f3448e1923a1a988a0d..39a77f4cd9fd4494047682db3702b159e251a7d1:/src/common/image.cpp diff --git a/src/common/image.cpp b/src/common/image.cpp index 14b9e91fe3..a86831b26b 100644 --- a/src/common/image.cpp +++ b/src/common/image.cpp @@ -7,7 +7,7 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ +#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma implementation "image.h" #endif @@ -32,6 +32,7 @@ #include "wx/intl.h" #include "wx/module.h" #include "wx/hash.h" +#include "wx/utils.h" // For memcpy #include @@ -109,10 +110,6 @@ wxImage wxNullImage; IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject) -wxImage::wxImage() -{ -} - wxImage::wxImage( int width, int height, bool clear ) { Create( width, height, clear ); @@ -218,6 +215,11 @@ wxImage wxImage::Copy() const memcpy( data, GetData(), M_IMGDATA->m_width*M_IMGDATA->m_height*3 ); + // also copy the image options + wxImageRefData *imgData = (wxImageRefData *)image.m_refData; + imgData->m_optionNames = M_IMGDATA->m_optionNames; + imgData->m_optionValues = M_IMGDATA->m_optionValues; + return image; } @@ -225,7 +227,7 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const { if( xFactor == 1 && yFactor == 1 ) return Copy() ; - + wxImage image; wxCHECK_MSG( Ok(), image, wxT("invalid image") ); @@ -236,7 +238,7 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const long old_height = M_IMGDATA->m_height, old_width = M_IMGDATA->m_width; - + wxCHECK_MSG( (old_height > 0) && (old_width > 0), image, wxT("invalid old image size") ); @@ -259,14 +261,14 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const maskRed = M_IMGDATA->m_maskRed; maskGreen = M_IMGDATA->m_maskGreen; maskBlue =M_IMGDATA->m_maskBlue ; - + image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue ); } char unsigned *source_data = M_IMGDATA->m_data; char unsigned *target_data = data; - + for (long y = 0; y < height; y++) { for (long x = 0; x < width; x++) @@ -302,9 +304,9 @@ wxImage wxImage::ShrinkBy( int xFactor , int yFactor ) const } else { - *(target_data++) = avgRed / counter ; - *(target_data++) = avgGreen / counter ; - *(target_data++) = avgBlue / counter ; + *(target_data++) = (unsigned char)(avgRed / counter); + *(target_data++) = (unsigned char)(avgGreen / counter); + *(target_data++) = (unsigned char)(avgBlue / counter); } } } @@ -790,7 +792,7 @@ void wxImage::SetAlpha(int x, int y, unsigned char alpha) M_IMGDATA->m_alpha[y*w + x] = alpha; } -unsigned char wxImage::GetAlpha(int x, int y) +unsigned char wxImage::GetAlpha(int x, int y) const { wxCHECK_MSG( Ok() && HasAlpha(), 0, wxT("invalid image or no alpha channel") ); @@ -802,6 +804,33 @@ unsigned char wxImage::GetAlpha(int x, int y) return M_IMGDATA->m_alpha[y*w + x]; } +bool wxImage::ConvertColourToAlpha( unsigned char r, unsigned char g, unsigned char b ) +{ + SetAlpha( NULL ); + + int w = M_IMGDATA->m_width, + h = M_IMGDATA->m_height; + + unsigned char *alpha = GetAlpha(); + unsigned char *data = GetData(); + + int x,y; + for (y = 0; y < h; y++) + for (x = 0; x < w; x++) + { + *alpha = *data; + alpha++; + *data = r; + data++; + *data = g; + data++; + *data = b; + data++; + } + + return true; +} + void wxImage::SetAlpha( unsigned char *alpha ) { wxCHECK_RET( Ok(), wxT("invalid image") ); @@ -811,7 +840,7 @@ void wxImage::SetAlpha( unsigned char *alpha ) alpha = (unsigned char *)malloc(M_IMGDATA->m_width*M_IMGDATA->m_height); } - delete [] M_IMGDATA->m_alpha; + free(M_IMGDATA->m_alpha); M_IMGDATA->m_alpha = alpha; } @@ -891,7 +920,7 @@ bool wxImage::SetMaskFromImage(const wxImage& mask, // check that the images are the same size if ( (M_IMGDATA->m_height != mask.GetHeight() ) || (M_IMGDATA->m_width != mask.GetWidth () ) ) { - wxLogError( _("Image and Mask have different sizes") ); + wxLogError( _("Image and mask have different sizes.") ); return false; } @@ -899,7 +928,7 @@ bool wxImage::SetMaskFromImage(const wxImage& mask, unsigned char r,g,b ; if (!FindFirstUnusedColour(&r, &g, &b)) { - wxLogError( _("No Unused Color in image being masked") ); + wxLogError( _("No unused colour in image being masked.") ); return false ; } @@ -930,6 +959,46 @@ bool wxImage::SetMaskFromImage(const wxImage& mask, return true; } +bool wxImage::ConvertAlphaToMask(unsigned char threshold) +{ + if (!HasAlpha()) + return true; + + unsigned char mr, mg, mb; + if (!FindFirstUnusedColour(&mr, &mg, &mb)) + { + wxLogError( _("No unused colour in image being masked.") ); + return false; + } + + SetMask(true); + SetMaskColour(mr, mg, mb); + + unsigned char *imgdata = GetData(); + unsigned char *alphadata = GetAlpha(); + + int w = GetWidth(); + int h = GetHeight(); + + for (int y = 0; y < h; y++) + { + for (int x = 0; x < w; x++, imgdata += 3, alphadata++) + { + if (*alphadata < threshold) + { + imgdata[0] = mr; + imgdata[1] = mg; + imgdata[2] = mb; + } + } + } + + free(M_IMGDATA->m_alpha); + M_IMGDATA->m_alpha = NULL; + + return true; +} + #if wxUSE_PALETTE // Palette functions @@ -1127,7 +1196,7 @@ bool wxImage::CanRead( wxInputStream &stream ) { const wxList& list = GetHandlers(); - for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() ) + for ( wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext() ) { wxImageHandler *handler=(wxImageHandler*)node->GetData(); if (handler->CanRead( stream )) @@ -1145,7 +1214,7 @@ int wxImage::GetImageCount( wxInputStream &stream, long type ) { wxList &list=GetHandlers(); - for (wxList::Node *node = list.GetFirst(); node; node = node->GetNext()) + for (wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext()) { handler=(wxImageHandler*)node->GetData(); if ( handler->CanRead(stream) ) @@ -1188,7 +1257,7 @@ bool wxImage::LoadFile( wxInputStream& stream, long type, int index ) { wxList &list=GetHandlers(); - for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() ) + for ( wxList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext() ) { handler=(wxImageHandler*)node->GetData(); if ( handler->CanRead(stream) ) @@ -1265,9 +1334,6 @@ bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) const void wxImage::AddHandler( wxImageHandler *handler ) { - // make sure that the memory will be freed at the program end - sm_handlers.DeleteContents(true); - // Check for an existing handler of the type being added. if (FindHandler( handler->GetType() ) == 0) { @@ -1289,9 +1355,6 @@ void wxImage::AddHandler( wxImageHandler *handler ) void wxImage::InsertHandler( wxImageHandler *handler ) { - // make sure that the memory will be freed at the program end - sm_handlers.DeleteContents(true); - // Check for an existing handler of the type being added. if (FindHandler( handler->GetType() ) == 0) { @@ -1312,6 +1375,7 @@ bool wxImage::RemoveHandler( const wxString& name ) if (handler) { sm_handlers.DeleteObject(handler); + delete handler; return true; } else @@ -1320,7 +1384,7 @@ bool wxImage::RemoveHandler( const wxString& name ) wxImageHandler *wxImage::FindHandler( const wxString& name ) { - wxNode *node = sm_handlers.GetFirst(); + wxList::compatibility_iterator node = sm_handlers.GetFirst(); while (node) { wxImageHandler *handler = (wxImageHandler*)node->GetData(); @@ -1333,7 +1397,7 @@ wxImageHandler *wxImage::FindHandler( const wxString& name ) wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType ) { - wxNode *node = sm_handlers.GetFirst(); + wxList::compatibility_iterator node = sm_handlers.GetFirst(); while (node) { wxImageHandler *handler = (wxImageHandler*)node->GetData(); @@ -1347,7 +1411,7 @@ wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType wxImageHandler *wxImage::FindHandler( long bitmapType ) { - wxNode *node = sm_handlers.GetFirst(); + wxList::compatibility_iterator node = sm_handlers.GetFirst(); while (node) { wxImageHandler *handler = (wxImageHandler *)node->GetData(); @@ -1359,7 +1423,7 @@ wxImageHandler *wxImage::FindHandler( long bitmapType ) wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype ) { - wxNode *node = sm_handlers.GetFirst(); + wxList::compatibility_iterator node = sm_handlers.GetFirst(); while (node) { wxImageHandler *handler = (wxImageHandler *)node->GetData(); @@ -1378,17 +1442,34 @@ void wxImage::InitStandardHandlers() void wxImage::CleanUpHandlers() { - wxNode *node = sm_handlers.GetFirst(); + wxList::compatibility_iterator node = sm_handlers.GetFirst(); while (node) { wxImageHandler *handler = (wxImageHandler *)node->GetData(); - wxNode *next = node->GetNext(); + wxList::compatibility_iterator next = node->GetNext(); delete handler; - delete node; node = next; } + + sm_handlers.Clear(); } +wxString wxImage::GetImageExtWildcard() +{ + wxString fmts; + + wxList& Handlers = wxImage::GetHandlers(); + wxList::compatibility_iterator Node = Handlers.GetFirst(); + while ( Node ) + { + wxImageHandler* Handler = (wxImageHandler*)Node->GetData(); + fmts += wxT("*.") + Handler->GetExtension(); + Node = Node->GetNext(); + if ( Node ) fmts += wxT(";"); + } + + return wxT("(") + fmts + wxT(")|") + fmts; +} //----------------------------------------------------------------------------- // wxImageHandler @@ -1427,7 +1508,7 @@ bool wxImageHandler::CanRead( const wxString& name ) bool wxImageHandler::CallDoCanRead(wxInputStream& stream) { - off_t posOld = stream.TellI(); + wxFileOffset posOld = stream.TellI(); if ( posOld == wxInvalidOffset ) { // can't test unseekable stream @@ -1450,37 +1531,6 @@ bool wxImageHandler::CallDoCanRead(wxInputStream& stream) #endif // wxUSE_STREAMS - - -//----------------------------------------------------------------------------- -// Deprecated wxBitmap conversion routines -//----------------------------------------------------------------------------- - -#if WXWIN_COMPATIBILITY_2_2 && wxUSE_GUI - -#ifdef __WXGTK__ -wxBitmap wxImage::ConvertToMonoBitmap( unsigned char red, unsigned char green, unsigned char blue ) const -{ - wxImage mono = this->ConvertToMono( red, green, blue ); - wxBitmap bitmap( mono, 1 ); - return bitmap; -} -#endif - -wxBitmap wxImage::ConvertToBitmap() const -{ - wxBitmap bitmap( *this ); - return bitmap; -} - -wxImage::wxImage( const wxBitmap &bitmap ) -{ - *this = bitmap.ConvertToImage(); -} - -#endif // WXWIN_COMPATIBILITY_2_2 && wxUSE_GUI - - // ---------------------------------------------------------------------------- // image histogram stuff // ---------------------------------------------------------------------------- @@ -1509,7 +1559,7 @@ wxImageHistogram::FindFirstUnusedColour(unsigned char *r, b2++; if ( b2 >= 255 ) { - wxLogError(_("GetUnusedColour:: No Unused Color in image ") ); + wxLogError(_("No unused colour in image.") ); return false; } } @@ -1645,15 +1695,25 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i { int i; angle = -angle; // screen coordinates are a mirror image of "real" coordinates + + bool has_alpha = HasAlpha(); // Create pointer-based array to accelerate access to wxImage's data unsigned char ** data = new unsigned char * [GetHeight()]; - data[0] = GetData(); - for (i = 1; i < GetHeight(); i++) data[i] = data[i - 1] + (3 * GetWidth()); + // Same for alpha channel + unsigned char ** alpha = NULL; + if (has_alpha) + { + alpha = new unsigned char * [GetHeight()]; + alpha[0] = GetAlpha(); + for (i = 1; i < GetHeight(); i++) + alpha[i] = alpha[i - 1] + GetWidth(); + } + // precompute coefficients for rotation formula // (sine and cosine of the angle) const double cos_angle = cos(angle); @@ -1675,7 +1735,11 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i int x2 = (int) ceil (wxMax (wxMax(p1.x, p2.x), wxMax(p3.x, p4.x))); int y2 = (int) ceil (wxMax (wxMax(p1.y, p2.y), wxMax(p3.y, p4.y))); + // Create rotated image wxImage rotated (x2 - x1 + 1, y2 - y1 + 1, false); + // With alpha channel + if (has_alpha) + rotated.SetAlpha(); if (offset_after_rotation != NULL) { @@ -1687,6 +1751,10 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i // array here (and in fact it would be slower). // unsigned char * dst = rotated.GetData(); + + unsigned char * alpha_dst = NULL; + if (has_alpha) + alpha_dst = rotated.GetAlpha(); // GRG: if the original image has a mask, use its RGB values // as the blank pixel, else, fall back to default (black). @@ -1773,28 +1841,52 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i unsigned char *p = data[y1] + (3 * x1); *(dst++) = *(p++); *(dst++) = *(p++); - *(dst++) = *(p++); + *(dst++) = *p; + + if (has_alpha) + { + unsigned char *p = alpha[y1] + x1; + *(alpha_dst++) = *p; + } } else if (d2 < gs_Epsilon) { unsigned char *p = data[y1] + (3 * x2); *(dst++) = *(p++); *(dst++) = *(p++); - *(dst++) = *(p++); + *(dst++) = *p; + + if (has_alpha) + { + unsigned char *p = alpha[y1] + x2; + *(alpha_dst++) = *p; + } } else if (d3 < gs_Epsilon) { unsigned char *p = data[y2] + (3 * x2); *(dst++) = *(p++); *(dst++) = *(p++); - *(dst++) = *(p++); + *(dst++) = *p; + + if (has_alpha) + { + unsigned char *p = alpha[y2] + x2; + *(alpha_dst++) = *p; + } } else if (d4 < gs_Epsilon) { unsigned char *p = data[y2] + (3 * x1); *(dst++) = *(p++); *(dst++) = *(p++); - *(dst++) = *(p++); + *(dst++) = *p; + + if (has_alpha) + { + unsigned char *p = alpha[y2] + x1; + *(alpha_dst++) = *p; + } } else { @@ -1817,9 +1909,22 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i w3 * *(v3++) + w4 * *(v4++)) / (w1 + w2 + w3 + w4) ); *(dst++) = (unsigned char) - ( (w1 * *(v1++) + w2 * *(v2++) + - w3 * *(v3++) + w4 * *(v4++)) / + ( (w1 * *v1 + w2 * *v2 + + w3 * *v3 + w4 * *v4) / (w1 + w2 + w3 + w4) ); + + if (has_alpha) + { + unsigned char *v1 = alpha[y1] + (x1); + unsigned char *v2 = alpha[y1] + (x2); + unsigned char *v3 = alpha[y2] + (x2); + unsigned char *v4 = alpha[y2] + (x1); + + *(alpha_dst++) = (unsigned char) + ( (w1 * *v1 + w2 * *v2 + + w3 * *v3 + w4 * *v4) / + (w1 + w2 + w3 + w4) ); + } } } else @@ -1827,6 +1932,9 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i *(dst++) = blank_r; *(dst++) = blank_g; *(dst++) = blank_b; + + if (has_alpha) + *(alpha_dst++) = 0; } } } @@ -1848,19 +1956,31 @@ wxImage wxImage::Rotate(double angle, const wxPoint & centre_of_rotation, bool i unsigned char *p = data[ys] + (3 * xs); *(dst++) = *(p++); *(dst++) = *(p++); - *(dst++) = *(p++); + *(dst++) = *p; + + if (has_alpha) + { + unsigned char *p = alpha[ys] + (xs); + *(alpha_dst++) = *p; + } } else { *(dst++) = blank_r; *(dst++) = blank_g; *(dst++) = blank_b; + + if (has_alpha) + *(alpha_dst++) = 255; } } } } delete [] data; + + if (has_alpha) + delete [] alpha; return rotated; }