#include "wx/image.h"
#include "wx/utils.h"
#include "wx/log.h"
+#include "wx/hashmap.h"
#include "wx/intl.h"
#include <string.h>
+#include <ctype.h>
+
#include "wx/xpmdecod.h"
#if wxUSE_STREAMS
{
unsigned char buf[9];
- stream.Read(buf, 9);
- stream.SeekI(-9, wxFromCurrent);
+ if ( !stream.Read(buf, WXSIZEOF(buf)) )
+ return FALSE;
+
+ stream.SeekI(-(off_t)WXSIZEOF(buf), wxFromCurrent);
- return (memcmp(buf, "/* XPM */", 9) == 0);
+ return memcmp(buf, "/* XPM */", WXSIZEOF(buf)) == 0;
}
wxImage wxXPMDecoder::ReadFile(wxInputStream& stream)
{
size_t length = stream.GetSize();
- wxCHECK_MSG(length != 0, wxNullImage, wxT("Cannot read XPM from stream of unknown size"));
+ wxCHECK_MSG( length != 0, wxNullImage,
+ wxT("Cannot read XPM from stream of unknown size") );
- char *xpm_buffer = new char[length];
- char *p, *q;
- size_t i;
+ // use a smart buffer to be sure to free memory even when we return on
+ // error
+ wxCharBuffer buffer(length);
- if ( stream.Read(xpm_buffer, length).LastError() != wxSTREAM_NO_ERROR )
- return FALSE;
+ char *xpm_buffer = (char *)buffer.data();
+ if ( stream.Read(xpm_buffer, length).GetLastError() == wxSTREAM_READ_ERROR )
+ return wxNullImage;
+ xpm_buffer[length] = '\0';
/*
* Remove comments from the file:
*/
+ char *p, *q;
for (p = xpm_buffer; *p != '\0'; p++)
{
if ( (*p == '"') || (*p == '\'') )
/*
* Remove unquoted characters:
*/
- i = 0;
+ size_t i = 0;
for (p = xpm_buffer; *p != '\0'; p++)
{
if ( *p != '"' )
lines_cnt++;
}
+ if ( !lines_cnt )
+ {
+ // this doesn't really look an XPM image
+ return wxNullImage;
+ }
+
xpm_lines = new const char*[lines_cnt];
xpm_lines[0] = xpm_buffer;
line = 1;
*/
wxImage img = ReadData(xpm_lines);
- delete[] xpm_buffer;
#ifdef __WIN16__
delete[] (char**) xpm_lines;
#else
delete[] xpm_lines;
#endif
+
return img;
}
#endif // wxUSE_STREAMS
typedef struct
{
- char *name;
+ const char *name;
wxUint32 rgb;
} rgbRecord;
char *name;
char *grey, *p;
- // #rrggbb are not in database, we parse them directly
- if ( *inname == '#' && strlen(inname) == 7 )
+ // Neither #rrggbb nor #rrrrggggbbbb are in database, we parse them directly
+ size_t inname_len = strlen(inname);
+ if ( *inname == '#' && (inname_len == 7 || inname_len == 13))
{
+ size_t ofs = (inname_len == 7) ? 2 : 4;
*r = ParseHexadecimal(inname[1], inname[2]);
- *g = ParseHexadecimal(inname[3], inname[4]);
- *b = ParseHexadecimal(inname[5], inname[6]);
+ *g = ParseHexadecimal(inname[1*ofs+1], inname[1*ofs+2]);
+ *b = ParseHexadecimal(inname[2*ofs+1], inname[2*ofs+2]);
*isNone = FALSE;
return TRUE;
}
return NULL;
}
-class wxXPMColourMapData : public wxObject
+struct wxXPMColourMapData
{
- public:
- unsigned char R,G,B;
+ unsigned char R,G,B;
};
+WX_DECLARE_STRING_HASH_MAP(wxXPMColourMapData, wxXPMColourMap)
wxImage wxXPMDecoder::ReadData(const char **xpm_data)
{
wxChar key[64];
const char *clr_def;
bool hasMask;
- wxXPMColourMapData *clr_data;
- wxHashTable clr_tbl(wxKEY_STRING);
+ wxXPMColourMapData clr_data;
+ wxXPMColourMap clr_tbl;
/*
* Read hints and initialize structures:
img.SetMask(FALSE);
key[chars_per_pixel] = wxT('\0');
hasMask = FALSE;
- clr_tbl.DeleteContents(TRUE);
/*
* Create colour map:
{
for (i_key = 0; i_key < chars_per_pixel; i_key++)
key[i_key] = (wxChar)xpm_data[1 + i][i_key];
- clr_def = ParseColor(xpm_data[1 + i]);
- clr_data = new wxXPMColourMapData;
+ clr_def = ParseColor(xpm_data[1 + i] + chars_per_pixel);
if ( clr_def == NULL )
{
wxLogError(_("XPM: malformed colour definition '%s'!"), xpm_data[1+i]);
- clr_data->R = 255, clr_data->G = 0, clr_data->B = 255;
+ clr_data.R = 255, clr_data.G = 0, clr_data.B = 255;
}
else
{
bool isNone;
if ( !GetRGBFromName(clr_def, &isNone,
- &clr_data->R, &clr_data->G, &clr_data->B) )
+ &clr_data.R, &clr_data.G, &clr_data.B) )
{
wxLogError(_("XPM: malformed colour definition '%s'!"), xpm_data[1+i]);
- clr_data->R = 255, clr_data->G = 0, clr_data->B = 255;
+ clr_data.R = 255, clr_data.G = 0, clr_data.B = 255;
}
else
{
img.SetMask(TRUE);
img.SetMaskColour(255, 0, 255);
hasMask = TRUE;
- clr_data->R = 255, clr_data->G = 0, clr_data->B = 255;
+ clr_data.R = 255, clr_data.G = 0, clr_data.B = 255;
}
else
{
- if ( hasMask && clr_data->R == 255 &&
- clr_data->G == 0 && clr_data->B == 255 )
- clr_data->B = 254;
+ if ( hasMask && clr_data.R == 255 &&
+ clr_data.G == 0 && clr_data.B == 255 )
+ clr_data.B = 254;
}
}
}
- clr_tbl.Put(key, clr_data);
+ clr_tbl[key] = clr_data;
}
/*
*/
unsigned char *img_data = img.GetData();
+ wxXPMColourMap::iterator entry;
+ wxXPMColourMap::iterator end = clr_tbl.end();
+
for (j = 0; j < height; j++)
{
for (i = 0; i < width; i++, img_data += 3)
for (i_key = 0; i_key < chars_per_pixel; i_key++)
key[i_key] = (wxChar)xpm_data[1 + colors_cnt + j]
[chars_per_pixel * i + i_key];
- clr_data = (wxXPMColourMapData*) clr_tbl.Get(key);
- if ( clr_data == NULL )
+ entry = clr_tbl.find(key);
+ if ( entry == end )
{
wxLogError(_("XPM: Malformed pixel data!"));
}
else
{
- img_data[0] = clr_data->R;
- img_data[1] = clr_data->G;
- img_data[2] = clr_data->B;
+ img_data[0] = entry->second.R;
+ img_data[1] = entry->second.G;
+ img_data[2] = entry->second.B;
}
}
}
return img;
}
-
#endif // wxUSE_IMAGE && wxUSE_XPM
projects / wxWidgets.git / blobdiff