Files
wxWidgets/src/mac/carbon/bitmap.cpp
Gilles Depeyrot 03e11df547 modifications for compilation under Mac OS X
applied patches extracted from submission by Marc Newsam (tested under Mac OS 9)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9372 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2001-02-15 21:51:14 +00:00

914 lines
22 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: bitmap.cpp
// Purpose: wxBitmap
// Author: AUTHOR
// Modified by:
// Created: ??/??/98
// RCS-ID: $Id$
// Copyright: (c) AUTHOR
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "bitmap.h"
#endif
#include "wx/wx.h"
#include "wx/setup.h"
#include "wx/utils.h"
#include "wx/palette.h"
#include "wx/bitmap.h"
#include "wx/icon.h"
#include "wx/log.h"
extern "C"
{
#ifdef __UNIX__
#include "xpm/xpm.h"
#else
#include "xpm.h"
#endif
} ;
#if !USE_SHARED_LIBRARIES
IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
#endif
#ifdef __UNIX__
#include <QD/PictUtils.h>
#else
#include <PictUtils.h>
#endif
CTabHandle wxMacCreateColorTable( int numColors )
{
CTabHandle newColors; /* Handle to the new color table */
/* Allocate memory for the color table */
newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) +
sizeof (ColorSpec) * (numColors - 1) );
if (newColors != nil)
{
/* Initialize the fields */
(**newColors).ctSeed = GetCTSeed();
(**newColors).ctFlags = 0;
(**newColors).ctSize = numColors - 1;
/* Initialize the table of colors */
}
return newColors ;
}
void wxMacDestroyColorTable( CTabHandle colors )
{
DisposeHandle( (Handle) colors ) ;
}
void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green , int blue )
{
(**newColors).ctTable[index].value = index;
(**newColors).ctTable[index].rgb.red = 0 ;// someRedValue;
(**newColors).ctTable[index].rgb.green = 0 ; // someGreenValue;
(**newColors).ctTable[index].rgb.blue = 0 ; // someBlueValue;
}
GWorldPtr wxMacCreateGWorld( int width , int height , int depth )
{
OSErr err = noErr ;
GWorldPtr port ;
Rect rect = { 0 , 0 , height , width } ;
if ( depth < 0 )
{
depth = wxDisplayDepth() ;
}
err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ;
if ( err == noErr )
{
return port ;
}
return NULL ;
}
void wxMacDestroyGWorld( GWorldPtr gw )
{
if ( gw )
DisposeGWorld( gw ) ;
}
wxBitmapRefData::wxBitmapRefData()
{
m_ok = FALSE;
m_width = 0;
m_height = 0;
m_depth = 0;
m_quality = 0;
m_numColors = 0;
m_bitmapMask = NULL;
m_hBitmap = NULL ;
m_hPict = NULL ;
m_bitmapType = kMacBitmapTypeUnknownType ;
}
wxBitmapRefData::~wxBitmapRefData()
{
switch (m_bitmapType)
{
case kMacBitmapTypePict :
{
if ( m_hPict )
{
KillPicture( m_hPict ) ;
m_hPict = NULL ;
}
}
break ;
case kMacBitmapTypeGrafWorld :
{
if ( m_hBitmap )
{
wxMacDestroyGWorld( m_hBitmap ) ;
m_hBitmap = NULL ;
}
}
break ;
default :
// unkown type ?
break ;
}
if (m_bitmapMask)
{
delete m_bitmapMask;
m_bitmapMask = NULL;
}
}
wxList wxBitmap::sm_handlers;
wxBitmap::wxBitmap()
{
m_refData = NULL;
if ( wxTheBitmapList )
wxTheBitmapList->AddBitmap(this);
}
wxBitmap::~wxBitmap()
{
if (wxTheBitmapList)
wxTheBitmapList->DeleteObject(this);
}
wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits)
{
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_width = the_width ;
M_BITMAPDATA->m_height = the_height ;
M_BITMAPDATA->m_depth = no_bits ;
M_BITMAPDATA->m_numColors = 0;
if ( no_bits == 1 )
{
M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ;
M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
CGrafPtr origPort ;
GDHandle origDevice ;
GetGWorld( &origPort , &origDevice ) ;
SetGWorld( M_BITMAPDATA->m_hBitmap , NULL ) ;
LockPixels( GetGWorldPixMap( (CGrafPtr) M_BITMAPDATA->m_hBitmap ) ) ;
// bits is a word aligned array
unsigned char* linestart = (unsigned char*) bits ;
int linesize = ( the_width / 16 ) * 2 ;
if ( the_width % 16 )
{
linesize += 2 ;
}
RGBColor colors[2] = {
{ 0xFFFF , 0xFFFF , 0xFFFF } ,
{ 0, 0 , 0 }
} ;
for ( int y = 0 ; y < the_height ; ++y , linestart += linesize )
{
for ( int x = 0 ; x < the_width ; ++x )
{
int index = x / 8 ;
int bit = x % 8 ;
int mask = 1 << bit ;
if ( linestart[index] & mask )
{
SetCPixel( x , y , &colors[1] ) ;
}
else
{
SetCPixel( x , y , &colors[0] ) ;
}
}
}
UnlockPixels( GetGWorldPixMap( (CGrafPtr) M_BITMAPDATA->m_hBitmap ) ) ;
SetGWorld( origPort , origDevice ) ;
}
else
{
wxFAIL_MSG(wxT("multicolor BITMAPs not yet implemented"));
}
if ( wxTheBitmapList )
wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(int w, int h, int d)
{
(void)Create(w, h, d);
if ( wxTheBitmapList )
wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
{
(void) Create(data, type, width, height, depth);
if ( wxTheBitmapList )
wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(const wxString& filename, long type)
{
LoadFile(filename, (int)type);
if ( wxTheBitmapList )
wxTheBitmapList->AddBitmap(this);
}
wxBitmap::wxBitmap(const char **data)
{
(void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
}
wxBitmap::wxBitmap(char **data)
{
(void) Create((void *)data, wxBITMAP_TYPE_XPM_DATA, 0, 0, 0);
}
bool wxBitmap::Create(int w, int h, int d)
{
UnRef();
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_width = w;
M_BITMAPDATA->m_height = h;
M_BITMAPDATA->m_depth = d;
M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( w , h , d ) ;
M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
return M_BITMAPDATA->m_ok;
}
void wxBitmap::SetHBITMAP(WXHBITMAP bmp)
{
M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
M_BITMAPDATA->m_hBitmap = bmp ;
M_BITMAPDATA->m_ok = (M_BITMAPDATA->m_hBitmap != NULL ) ;
}
bool wxBitmap::LoadFile(const wxString& filename, long type)
{
UnRef();
m_refData = new wxBitmapRefData;
wxBitmapHandler *handler = FindHandler(type);
if ( handler == NULL ) {
wxLogWarning("no bitmap handler for type %d defined.", type);
return FALSE;
}
return handler->LoadFile(this, filename, type, -1, -1);
}
bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
{
UnRef();
m_refData = new wxBitmapRefData;
wxBitmapHandler *handler = FindHandler(type);
if ( handler == NULL ) {
wxLogWarning("no bitmap handler for type %d defined.", type);
return FALSE;
}
return handler->Create(this, data, type, width, height, depth);
}
bool wxBitmap::SaveFile(const wxString& filename, int type, const wxPalette *palette)
{
wxBitmapHandler *handler = FindHandler(type);
if ( handler == NULL ) {
wxLogWarning("no bitmap handler for type %d defined.", type);
return FALSE;
}
return handler->SaveFile(this, filename, type, palette);
}
void wxBitmap::SetWidth(int w)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_width = w;
}
void wxBitmap::SetHeight(int h)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_height = h;
}
void wxBitmap::SetDepth(int d)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_depth = d;
}
void wxBitmap::SetQuality(int q)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_quality = q;
}
void wxBitmap::SetOk(bool isOk)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_ok = isOk;
}
void wxBitmap::SetPalette(const wxPalette& palette)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_bitmapPalette = palette ;
}
void wxBitmap::SetMask(wxMask *mask)
{
if (!M_BITMAPDATA)
m_refData = new wxBitmapRefData;
M_BITMAPDATA->m_bitmapMask = mask ;
}
void wxBitmap::AddHandler(wxBitmapHandler *handler)
{
sm_handlers.Append(handler);
}
void wxBitmap::InsertHandler(wxBitmapHandler *handler)
{
sm_handlers.Insert(handler);
}
bool wxBitmap::RemoveHandler(const wxString& name)
{
wxBitmapHandler *handler = FindHandler(name);
if ( handler )
{
sm_handlers.DeleteObject(handler);
return TRUE;
}
else
return FALSE;
}
wxBitmapHandler *wxBitmap::FindHandler(const wxString& name)
{
wxNode *node = sm_handlers.First();
while ( node )
{
wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
if ( handler->GetName() == name )
return handler;
node = node->Next();
}
return NULL;
}
wxBitmapHandler *wxBitmap::FindHandler(const wxString& extension, long bitmapType)
{
wxNode *node = sm_handlers.First();
while ( node )
{
wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
if ( handler->GetExtension() == extension &&
(bitmapType == -1 || handler->GetType() == bitmapType) )
return handler;
node = node->Next();
}
return NULL;
}
wxBitmapHandler *wxBitmap::FindHandler(long bitmapType)
{
wxNode *node = sm_handlers.First();
while ( node )
{
wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
if (handler->GetType() == bitmapType)
return handler;
node = node->Next();
}
return NULL;
}
/*
* wxMask
*/
wxMask::wxMask()
{
m_maskBitmap = 0;
}
// Construct a mask from a bitmap and a colour indicating
// the transparent area
wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour)
{
m_maskBitmap = 0;
Create(bitmap, colour);
}
// Construct a mask from a bitmap and a palette index indicating
// the transparent area
wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex)
{
m_maskBitmap = 0;
Create(bitmap, paletteIndex);
}
// Construct a mask from a mono bitmap (copies the bitmap).
wxMask::wxMask(const wxBitmap& bitmap)
{
m_maskBitmap = 0;
Create(bitmap);
}
wxMask::~wxMask()
{
if ( m_maskBitmap )
{
wxMacDestroyGWorld( m_maskBitmap ) ;
m_maskBitmap = NULL ;
}
}
// Create a mask from a mono bitmap (copies the bitmap).
bool wxMask::Create(const wxBitmap& bitmap)
{
// TODO
return FALSE;
}
// Create a mask from a bitmap and a palette index indicating
// the transparent area
bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex)
{
// TODO
return FALSE;
}
// Create a mask from a bitmap and a colour indicating
// the transparent area
bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
{
if ( m_maskBitmap )
{
wxMacDestroyGWorld( m_maskBitmap ) ;
m_maskBitmap = NULL ;
}
wxASSERT( ((wxBitmapRefData*) bitmap.GetRefData())->m_bitmapType == kMacBitmapTypeGrafWorld ) ;
// other types would require a temporary bitmap. not yet implemented
if (!bitmap.Ok())
{
return FALSE;
}
m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 ) ;
LockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
LockPixels( GetGWorldPixMap( (CGrafPtr) ((wxBitmapRefData*) bitmap.GetRefData())->m_hBitmap ) ) ;
RGBColor maskColor = colour.GetPixel() ;
// this is not very efficient, but I can't think
// of a better way of doing it
CGrafPtr origPort ;
GDHandle origDevice ;
GetGWorld( &origPort , &origDevice ) ;
for (int w = 0; w < bitmap.GetWidth(); w++)
{
for (int h = 0; h < bitmap.GetHeight(); h++)
{
RGBColor colors[2] = {
{ 0xFFFF , 0xFFFF , 0xFFFF } ,
{ 0, 0 , 0 }
} ;
SetGWorld( ((wxBitmapRefData*) bitmap.GetRefData())->m_hBitmap , NULL ) ;
RGBColor col ;
GetCPixel( w , h , &col ) ;
SetGWorld( m_maskBitmap , NULL ) ;
if (col.red == maskColor.red && col.blue == maskColor.blue && col.green == maskColor.green)
{
SetCPixel( w , h , &colors[0] ) ;
}
else
{
SetCPixel( w , h , &colors[1] ) ;
}
}
}
UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
UnlockPixels( GetGWorldPixMap( ((wxBitmapRefData*) bitmap.GetRefData())->m_hBitmap ) ) ;
SetGWorld( origPort , origDevice ) ;
return TRUE;
}
/*
* wxBitmapHandler
*/
IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
bool wxBitmapHandler::Create(wxBitmap *bitmap, void *data, long type, int width, int height, int depth)
{
return FALSE;
}
bool wxBitmapHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long type,
int desiredWidth, int desiredHeight)
{
return FALSE;
}
bool wxBitmapHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
{
return FALSE;
}
/*
* Standard handlers
*/
class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler
{
DECLARE_DYNAMIC_CLASS(wxPICTResourceHandler)
public:
inline wxPICTResourceHandler()
{
m_name = "Macintosh Pict resource";
m_extension = "";
m_type = wxBITMAP_TYPE_PICT_RESOURCE;
};
virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight);
};
IMPLEMENT_DYNAMIC_CLASS(wxPICTResourceHandler, wxBitmapHandler)
bool wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight)
{
Str255 theName ;
#if TARGET_CARBON
c2pstrcpy( (StringPtr) theName , name ) ;
#else
strcpy( (char *) theName , name ) ;
c2pstr( (char *)theName ) ;
#endif
PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ;
if ( thePict )
{
PictInfo theInfo ;
GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ;
DetachResource( (Handle) thePict ) ;
M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ;
M_BITMAPHANDLERDATA->m_hPict = thePict ;
M_BITMAPHANDLERDATA->m_width = theInfo.sourceRect.right - theInfo.sourceRect.left ;
M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ;
M_BITMAPHANDLERDATA->m_depth = theInfo.depth ;
M_BITMAPHANDLERDATA->m_ok = true ;
M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ;
// M_BITMAPHANDLERDATA->m_bitmapPalette;
// M_BITMAPHANDLERDATA->m_quality;
return TRUE ;
}
return FALSE ;
}
/* TODO: bitmap handlers, a bit like this:
class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
{
DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
public:
inline wxBMPResourceHandler()
{
m_name = "Windows bitmap resource";
m_extension = "";
m_type = wxBITMAP_TYPE_BMP_RESOURCE;
};
virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight);
};
IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
*/
class WXDLLEXPORT wxXPMFileHandler: public wxBitmapHandler
{
DECLARE_DYNAMIC_CLASS(wxXPMFileHandler)
public:
inline wxXPMFileHandler(void)
{
m_name = "XPM bitmap file";
m_extension = "xpm";
m_type = wxBITMAP_TYPE_XPM;
};
virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth = -1, int desiredHeight = -1);
virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
};
IMPLEMENT_DYNAMIC_CLASS(wxXPMFileHandler, wxBitmapHandler)
bool wxXPMFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight)
{
#if USE_XPM_IN_MSW
XImage *ximage;
XpmAttributes xpmAttr;
HDC dc;
M_BITMAPHANDLERDATA->m_ok = FALSE;
dc = CreateCompatibleDC(NULL);
if (dc)
{
xpmAttr.valuemask = XpmReturnPixels;
int errorStatus = XpmReadFileToImage(&dc, WXSTRINGCAST name, &ximage, (XImage **) NULL, &xpmAttr);
DeleteDC(dc);
if (errorStatus == XpmSuccess)
{
M_BITMAPHANDLERDATA->m_hBitmap = (WXHBITMAP) ximage->bitmap;
BITMAP bm;
GetObject((HBITMAP)M_BITMAPHANDLERDATA->m_hBitmap, sizeof(bm), (LPSTR) & bm);
M_BITMAPHANDLERDATA->m_width = (bm.bmWidth);
M_BITMAPHANDLERDATA->m_height = (bm.bmHeight);
M_BITMAPHANDLERDATA->m_depth = (bm.bmPlanes * bm.bmBitsPixel);
M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
XpmFreeAttributes(&xpmAttr);
XImageFree(ximage);
M_BITMAPHANDLERDATA->m_ok = TRUE;
return TRUE;
}
else
{
M_BITMAPHANDLERDATA->m_ok = FALSE;
return FALSE;
}
}
#endif
return FALSE;
}
bool wxXPMFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette)
{
#if USE_XPM_IN_MSW
HDC dc = NULL;
Visual *visual = NULL;
XImage ximage;
dc = CreateCompatibleDC(NULL);
if (dc)
{
if (SelectObject(dc, (HBITMAP) M_BITMAPHANDLERDATA->m_hBitmap))
{
ximage.width = M_BITMAPHANDLERDATA->m_width;
ximage.height = M_BITMAPHANDLERDATA->m_height;
ximage.depth = M_BITMAPHANDLERDATA->m_depth;
ximage.bitmap = (void *)M_BITMAPHANDLERDATA->m_hBitmap;
int errorStatus = XpmWriteFileFromImage(&dc, WXSTRINGCAST name,
&ximage, (XImage *) NULL, (XpmAttributes *) NULL);
if (dc)
DeleteDC(dc);
if (errorStatus == XpmSuccess)
return TRUE;
else
return FALSE;
} else return FALSE;
} else return FALSE;
#else
return FALSE;
#endif
}
class WXDLLEXPORT wxXPMDataHandler: public wxBitmapHandler
{
DECLARE_DYNAMIC_CLASS(wxXPMDataHandler)
public:
inline wxXPMDataHandler(void)
{
m_name = "XPM bitmap data";
m_extension = "xpm";
m_type = wxBITMAP_TYPE_XPM_DATA;
};
virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1);
};
IMPLEMENT_DYNAMIC_CLASS(wxXPMDataHandler, wxBitmapHandler)
bool wxXPMDataHandler::Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth)
{
XImage * ximage = NULL ;
XImage * xshapeimage = NULL ;
int ErrorStatus;
XpmAttributes xpmAttr;
xpmAttr.valuemask = XpmReturnInfos; // get infos back
ErrorStatus = XpmCreateImageFromData( GetMainDevice() , (char **)data,
&ximage, &xshapeimage, &xpmAttr);
if (ErrorStatus == XpmSuccess)
{
M_BITMAPHANDLERDATA->m_ok = FALSE;
M_BITMAPHANDLERDATA->m_numColors = 0;
M_BITMAPHANDLERDATA->m_hBitmap = ximage->gworldptr ;
M_BITMAPHANDLERDATA->m_width = ximage->width;
M_BITMAPHANDLERDATA->m_height = ximage->height;
M_BITMAPHANDLERDATA->m_depth = ximage->depth;
M_BITMAPHANDLERDATA->m_numColors = xpmAttr.npixels;
XpmFreeAttributes(&xpmAttr);
M_BITMAPHANDLERDATA->m_ok = TRUE;
ximage->gworldptr = NULL ;
XImageFree(ximage); // releases the malloc, but does not detroy
// the bitmap
M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypeGrafWorld ;
if ( xshapeimage != NULL )
{
wxMask* m = new wxMask() ;
m->SetMaskBitmap( xshapeimage->gworldptr ) ;
M_BITMAPHANDLERDATA->m_bitmapMask = m ;
}
return TRUE;
}
else
{
M_BITMAPHANDLERDATA->m_ok = FALSE;
return FALSE;
}
return FALSE;
}
class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
{
DECLARE_DYNAMIC_CLASS(wxBMPResourceHandler)
public:
inline wxBMPResourceHandler()
{
m_name = "Windows bitmap resource";
m_extension = "";
m_type = wxBITMAP_TYPE_BMP_RESOURCE;
};
virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight);
};
IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight)
{
// TODO: load colourmap.
// it's probably not found
wxLogError("Can't load bitmap '%s' from resources! Check .rc file.", name.c_str());
return FALSE;
}
class WXDLLEXPORT wxBMPFileHandler: public wxBitmapHandler
{
DECLARE_DYNAMIC_CLASS(wxBMPFileHandler)
public:
inline wxBMPFileHandler(void)
{
m_name = "Windows bitmap file";
m_extension = "bmp";
m_type = wxBITMAP_TYPE_BMP;
};
virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight);
virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL);
};
IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap, const wxString& name, long flags,
int desiredWidth, int desiredHeight)
{
#if USE_IMAGE_LOADING_IN_MSW
wxPalette *palette = NULL;
bool success = FALSE;
success = (wxLoadIntoBitmap(WXSTRINGCAST name, bitmap, &palette) != 0);
if (!success && palette)
{
delete palette;
palette = NULL;
}
if (palette)
M_BITMAPHANDLERDATA->m_bitmapPalette = *palette;
return success;
#else
return FALSE;
#endif
}
bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *pal)
{
#if USE_IMAGE_LOADING_IN_MSW
wxPalette *actualPalette = (wxPalette *)pal;
if (!actualPalette && (!M_BITMAPHANDLERDATA->m_bitmapPalette.IsNull()))
actualPalette = & (M_BITMAPHANDLERDATA->m_bitmapPalette);
return (wxSaveBitmap(WXSTRINGCAST name, bitmap, actualPalette) != 0);
#else
return FALSE;
#endif
}
void wxBitmap::CleanUpHandlers()
{
wxNode *node = sm_handlers.First();
while ( node )
{
wxBitmapHandler *handler = (wxBitmapHandler *)node->Data();
wxNode *next = node->Next();
delete handler;
delete node;
node = next;
}
}
void wxBitmap::InitStandardHandlers()
{
AddHandler( new wxPICTResourceHandler ) ;
AddHandler( new wxICONResourceHandler ) ;
AddHandler(new wxXPMFileHandler);
AddHandler(new wxXPMDataHandler);
AddHandler(new wxBMPResourceHandler);
AddHandler(new wxBMPFileHandler);
}