Files
wxWidgets/src/mac/bitmap.cpp
2001-04-04 23:25:06 +00:00

1435 lines
37 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"
#include "wx/image.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 <ApplicationServices/ApplicationServices.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 ) ;
}
PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask)
{
CGrafPtr origPort ;
GDHandle origDev ;
PicHandle pict; // this is the Picture we give back
RGBColor gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
RGBColor white = { 0xffff ,0xffff , 0xffff } ;
RGBColor black = { 0x0000 ,0x0000 , 0x0000 } ;
unsigned char *maskimage = NULL ;
Rect portRect ;
GetPortBounds( wp , &portRect ) ;
int width = portRect.right - portRect.left ;
int height = portRect.bottom - portRect.top ;
LockPixels( GetGWorldPixMap( wp ) ) ;
GetGWorld( &origPort , &origDev ) ;
if ( mask )
{
maskimage = (unsigned char*) malloc( width * height ) ;
SetGWorld( mask , NULL ) ;
LockPixels( GetGWorldPixMap( mask ) ) ;
for ( int y = 0 ; y < height ; y++ )
{
for( int x = 0 ; x < width ; x++ )
{
RGBColor col ;
GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
maskimage[y*width + x] = ( col.red == 0 ) ; // for monochrome masks
}
}
UnlockPixels( GetGWorldPixMap( mask ) ) ;
}
SetGWorld( wp , NULL ) ;
pict = OpenPicture(&portRect); // open a picture, this disables drawing
if(!pict)
return NULL;
if ( maskimage )
{
RGBForeColor( &black ) ;
RGBBackColor( &white ) ;
PenMode(transparent);
for ( int y = 0 ; y < height ; ++y )
{
for( int x = 0 ; x < width ; ++x )
{
if ( maskimage[y*width + x] )
{
RGBColor col ;
GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
}
else {
// With transparency set this sets a blank pixel not a white one
SetCPixel( x + portRect.left , y + portRect.top , &white);
}
}
}
free( maskimage ) ;
maskimage = NULL ;
}
else
{
RGBBackColor( &gray ) ;
EraseRect(&portRect);
RGBForeColor( &black ) ;
RGBBackColor( &white ) ;
CopyBits(GetPortBitMapForCopyBits(wp), /* src PixMap - we copy image over
* itself - */
GetPortBitMapForCopyBits(wp), // dst PixMap - no drawing occurs
&portRect, // srcRect - it will be recorded and compressed -
&portRect, // dstRect - into the picture that is open -
srcCopy,NULL); // copyMode and no clip region
}
ClosePicture(); // We are done recording the picture
UnlockPixels( GetGWorldPixMap( wp ) ) ;
SetGWorld( origPort , origDev ) ;
return pict; // return our groovy pict handle
}
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( M_BITMAPDATA->m_hBitmap ) ) ;
#ifdef __UNIX__
// bits is a word aligned array?? Don't think so
// bits is a char array on MAC OS X however using the benefit of the
// doubt I replaced references to 16 with sizeof(unsigned char)*8
unsigned char* linestart = (unsigned char*) bits ;
int linesize = ( the_width / (sizeof(unsigned char) * 8)) ;
if ( the_width % (sizeof(unsigned char) * 8) ) {
linesize += sizeof(unsigned char);
}
#else
// bits is a word aligned array
unsigned char* linestart = (unsigned char*) bits ;
int linesize = ( the_width / 16 ) * 2 ;
if ( the_width % 16 )
{
linesize += 2 ;
}
#endif
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( 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);
}
wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const
{
wxCHECK_MSG( Ok() &&
(rect.x >= 0) && (rect.y >= 0) &&
(rect.x+rect.width <= GetWidth()) &&
(rect.y+rect.height <= GetHeight()),
wxNullBitmap, wxT("invalid bitmap or bitmap region") );
wxBitmap ret( rect.width, rect.height, GetDepth() );
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
WXHBITMAP origPort;
GDHandle origDevice;
GetGWorld( &origPort, &origDevice );
// Update the subbitmaps reference data
wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData();
ref->m_numColors = M_BITMAPDATA->m_numColors;
ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette;
ref->m_bitmapType = M_BITMAPDATA->m_bitmapType;
// Copy sub region of this bitmap
if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict)
{
printf("GetSubBitmap: Copy a region of a Pict structure - TODO\n");
}
else if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypeGrafWorld)
{
// Copy mask
if(GetMask())
{
WXHBITMAP submask, mask;
RGBColor color;
mask = GetMask()->GetMaskBitmap();
submask = wxMacCreateGWorld(rect.width, rect.height, 1);
LockPixels(GetGWorldPixMap(mask));
LockPixels(GetGWorldPixMap(submask));
for(int yy = 0; yy < rect.height; yy++)
{
for(int xx = 0; xx < rect.width; xx++)
{
SetGWorld(mask, NULL);
GetCPixel(rect.x + xx, rect.y + yy, &color);
SetGWorld(submask, NULL);
SetCPixel(xx,yy, &color);
}
}
UnlockPixels(GetGWorldPixMap(mask));
UnlockPixels(GetGWorldPixMap(submask));
ref->m_bitmapMask = new wxMask;
ref->m_bitmapMask->SetMaskBitmap(submask);
}
// Copy bitmap
if(GetHBITMAP())
{
WXHBITMAP subbitmap, bitmap;
RGBColor color;
bitmap = GetHBITMAP();
subbitmap = wxMacCreateGWorld(rect.width, rect.height, GetDepth());
LockPixels(GetGWorldPixMap(bitmap));
LockPixels(GetGWorldPixMap(subbitmap));
for(int yy = 0; yy < rect.height; yy++)
{
for(int xx = 0; xx < rect.width; xx++)
{
SetGWorld(bitmap, NULL);
GetCPixel(rect.x + xx, rect.y + yy, &color);
SetGWorld(subbitmap, NULL);
SetCPixel(xx, yy, &color);
}
}
UnlockPixels(GetGWorldPixMap(bitmap));
UnlockPixels(GetGWorldPixMap(subbitmap));
ret.SetHBITMAP(subbitmap);
}
}
SetGWorld( origPort, origDevice );
return ret;
}
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;
}
int wxBitmap::GetBitmapType() const
{
wxCHECK_MSG( Ok(), kMacBitmapTypeUnknownType, wxT("invalid bitmap") );
return M_BITMAPDATA->m_bitmapType;
}
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);
}
wxBitmap::wxBitmap(const wxImage& image, int depth)
{
wxCHECK_RET( image.Ok(), wxT("invalid image") )
wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") )
m_refData = new wxBitmapRefData();
if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
// width and height of the device-dependent bitmap
int width = image.GetWidth();
int height = image.GetHeight();
// Create picture
Create( width , height , wxDisplayDepth() ) ;
wxBitmap maskBitmap( width, height, 1);
CGrafPtr origPort ;
GDHandle origDevice ;
LockPixels( GetGWorldPixMap(GetHBITMAP()) );
LockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
GetGWorld( &origPort , &origDevice ) ;
SetGWorld( GetHBITMAP() , NULL ) ;
// Render image
wxColour rgb, maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue());
RGBColor color;
RGBColor white = { 0xffff, 0xffff, 0xffff };
RGBColor black = { 0 , 0 , 0 };
register unsigned char* data = image.GetData();
int index = 0;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
rgb.Set(data[index++], data[index++], data[index++]);
color = rgb.GetPixel();
SetCPixel( x , y , &color ) ;
if (image.HasMask())
{
SetGWorld(maskBitmap.GetHBITMAP(), NULL);
if (rgb == maskcolor) {
SetCPixel(x,y, &white);
}
else {
SetCPixel(x,y, &black);
}
SetGWorld(GetHBITMAP(), NULL);
}
}
} // for height
// Create mask
if ( image.HasMask() ) {
wxMask *mask = new wxMask( maskBitmap );
}
UnlockPixels( GetGWorldPixMap(GetHBITMAP()) );
UnlockPixels( GetGWorldPixMap(maskBitmap.GetHBITMAP()) );
SetGWorld( origPort, origDevice );
}
wxImage wxBitmap::ConvertToImage() const
{
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();
wxCHECK_MSG( data, wxNullImage, wxT("Could not allocate data for image") );
WXHBITMAP origPort;
GDHandle origDevice;
int index;
RGBColor color;
// background color set to RGB(16,16,16) in consistent with wxGTK
unsigned char mask_r=16, mask_g=16, mask_b=16;
SInt16 r,g,b;
wxMask *mask = GetMask();
GetGWorld( &origPort, &origDevice );
LockPixels(GetGWorldPixMap(GetHBITMAP()));
SetGWorld( GetHBITMAP(), NULL);
// Copy data into image
index = 0;
for (int yy = 0; yy < height; yy++)
{
for (int xx = 0; xx < width; xx++)
{
GetCPixel(xx,yy, &color);
r = ((color.red ) >> 8);
g = ((color.green ) >> 8);
b = ((color.blue ) >> 8);
data[index ] = r;
data[index + 1] = g;
data[index + 2] = b;
if (mask)
{
if (mask->PointMasked(xx,yy))
{
data[index ] = mask_r;
data[index + 1] = mask_g;
data[index + 2] = mask_b;
}
}
index += 3;
}
}
if (mask)
{
image.SetMaskColour( mask_r, mask_g, mask_b );
image.SetMask( true );
}
// Free resources
UnlockPixels(GetGWorldPixMap(GetHBITMAP()));
SetGWorld(origPort, origDevice);
return image;
}
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);
}
bool wxBitmap::Ok() const
{
return (M_BITMAPDATA && M_BITMAPDATA->m_ok);
}
int wxBitmap::GetHeight() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BITMAPDATA->m_height;
}
int wxBitmap::GetWidth() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BITMAPDATA->m_width;
}
int wxBitmap::GetDepth() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BITMAPDATA->m_depth;
}
int wxBitmap::GetQuality() const
{
wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
return M_BITMAPDATA->m_quality;
}
wxMask *wxBitmap::GetMask() const
{
wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
return M_BITMAPDATA->m_bitmapMask;
}
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;
}
wxPalette *wxBitmap::GetPalette() const
{
wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap GetPalette()") );
return &M_BITMAPDATA->m_bitmapPalette;
}
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 ;
}
WXHBITMAP wxBitmap::GetHBITMAP() const
{
wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
return M_BITMAPDATA->m_hBitmap;
}
PicHandle wxBitmap::GetPict() const
{
wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
PicHandle picture; // This is the returned picture
// If bitmap already in Pict format return pointer
if(M_BITMAPDATA->m_bitmapType == kMacBitmapTypePict) {
return M_BITMAPDATA->m_hPict;
}
else if(M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld) {
// Invalid bitmap
return NULL;
}
RGBColor gray = { 0xCCCC ,0xCCCC , 0xCCCC } ;
RGBColor white = { 0xffff ,0xffff , 0xffff } ;
RGBColor black = { 0x0000 ,0x0000 , 0x0000 } ;
CGrafPtr origPort;
GDHandle origDev ;
wxMask *mask;
Rect portRect ;
GetPortBounds( GetHBITMAP() , &portRect ) ;
int width = portRect.right - portRect.left ;
int height = portRect.bottom - portRect.top ;
LockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
GetGWorld( &origPort , &origDev ) ;
mask = GetMask();
SetGWorld( GetHBITMAP() , NULL ) ;
picture = OpenPicture(&portRect); // open a picture, this disables drawing
if(!picture) {
return NULL;
}
if( mask )
{
#ifdef __UNIX__
RGBColor trans = white;
#else
RGBBackColor( &gray );
EraseRect( &portRect );
RGBColor trans = gray;
#endif
RGBForeColor( &black ) ;
RGBBackColor( &white ) ;
PenMode(transparent);
for ( int y = 0 ; y < height ; ++y )
{
for( int x = 0 ; x < width ; ++x )
{
if ( !mask->PointMasked(x,y) )
{
RGBColor col ;
GetCPixel( x + portRect.left , y + portRect.top , &col ) ;
SetCPixel( x + portRect.left , y + portRect.top , &col ) ;
}
else {
// With transparency this sets a blank pixel
SetCPixel( x + portRect.left , y + portRect.top , &trans);
}
}
}
}
else
{
RGBBackColor( &gray ) ;
EraseRect(&portRect);
RGBForeColor( &black ) ;
RGBBackColor( &white ) ;
CopyBits(GetPortBitMapForCopyBits(GetHBITMAP()),
// src PixMap - we copy image over itself -
GetPortBitMapForCopyBits(GetHBITMAP()),
// dst PixMap - no drawing occurs
&portRect, // srcRect - it will be recorded and compressed -
&portRect, // dstRect - into the picture that is open -
srcCopy,NULL); // copyMode and no clip region
}
ClosePicture(); // We are done recording the picture
UnlockPixels( GetGWorldPixMap( GetHBITMAP() ) ) ;
SetGWorld( origPort , origDev ) ;
return picture; // return our groovy pict handle
}
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)
{
if ( m_maskBitmap )
{
wxMacDestroyGWorld( m_maskBitmap ) ;
m_maskBitmap = NULL ;
}
wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
wxT("Cannot create mask from this bitmap type (TODO)"));
// other types would require a temporary bitmap. not yet implemented
wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap"));
wxCHECK_MSG(bitmap.GetDepth() == 1, false,
wxT("Cannot create mask from colour bitmap"));
m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), 1);
Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() };
LockPixels( GetGWorldPixMap(m_maskBitmap) );
LockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
CopyBits(GetPortBitMapForCopyBits(bitmap.GetHBITMAP()),
GetPortBitMapForCopyBits(m_maskBitmap),
&rect, &rect, srcCopy, 0);
UnlockPixels( GetGWorldPixMap(m_maskBitmap) );
UnlockPixels( GetGWorldPixMap(bitmap.GetHBITMAP()) );
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
wxCHECK_MSG( 0, false, wxT("Not implemented"));
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 ;
}
wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false,
wxT("Cannot create mask from this bitmap type (TODO)"));
// other types would require a temporary bitmap. not yet implemented
wxCHECK_MSG( bitmap.Ok(), false, wxT("Illigal bitmap"));
m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 );
LockPixels( GetGWorldPixMap( m_maskBitmap ) );
LockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) );
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 ;
RGBColor col;
RGBColor colors[2] = {
{ 0xFFFF, 0xFFFF, 0xFFFF },
{ 0, 0, 0 }};
GetGWorld( &origPort , &origDevice ) ;
for (int w = 0; w < bitmap.GetWidth(); w++)
{
for (int h = 0; h < bitmap.GetHeight(); h++)
{
SetGWorld( bitmap.GetHBITMAP(), NULL ) ;
GetCPixel( w , h , &col ) ;
SetGWorld( m_maskBitmap , NULL ) ;
if (col.red == maskColor.red && col.green == maskColor.green && col.blue == maskColor.blue)
{
SetCPixel( w , h , &colors[0] ) ;
}
else
{
SetCPixel( w , h , &colors[1] ) ;
}
}
}
UnlockPixels( GetGWorldPixMap( (CGrafPtr) m_maskBitmap ) ) ;
UnlockPixels( GetGWorldPixMap( bitmap.GetHBITMAP() ) ) ;
SetGWorld( origPort , origDevice ) ;
return TRUE;
}
bool wxMask::PointMasked(int x, int y)
{
WXHBITMAP origPort;
GDHandle origDevice;
RGBColor color;
bool masked = true;
GetGWorld( &origPort, &origDevice);
//Set port to mask and see if it masked (1) or not ( 0 )
SetGWorld(m_maskBitmap, NULL);
LockPixels(GetGWorldPixMap(m_maskBitmap));
GetCPixel(x,y, &color);
masked = !(color.red == 0 && color.green == 0 && color.blue == 0);
UnlockPixels(GetGWorldPixMap(m_maskBitmap));
SetGWorld( origPort, origDevice);
return masked;
}
/*
* 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);
}