unicode support

[wxWidgets.git] / src / common / xpmdecod.cpp

diff --git a/src/common/xpmdecod.cpp b/src/common/xpmdecod.cpp
index 05113e9ab8b470b5ba645fd9530e1d7d0b0e218b..cc0e2bad48366147fd31b9f99f46dd9b64e392c3 100644 (file)
--- a/src/common/xpmdecod.cpp
+++ b/src/common/xpmdecod.cpp
@@ -90,7 +90,7 @@ license is as follows:
  * in this Software without prior written authorization from GROUPE BULL.
  */
 
  * in this Software without prior written authorization from GROUPE BULL.
  */
 

-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)

 #pragma implementation "xpmdecod.h"
 #endif
 
 #pragma implementation "xpmdecod.h"
 #endif
 


@@ -111,12 +111,11 @@ license is as follows:
 #include "wx/image.h"
 #include "wx/utils.h"
 #include "wx/log.h"
 #include "wx/image.h"
 #include "wx/utils.h"
 #include "wx/log.h"

+#include "wx/hashmap.h"

 #include "wx/intl.h"
 #include <string.h>
 
 #include "wx/intl.h"
 #include <string.h>
 

-#ifdef __VISUALC__

 #include <ctype.h>
 #include <ctype.h>

-#endif

 
 #include "wx/xpmdecod.h"
 
 
 #include "wx/xpmdecod.h"
 


@@ -125,10 +124,12 @@ bool wxXPMDecoder::CanRead(wxInputStream& stream)
 {
     unsigned char buf[9];
 
 {
     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)
 }
 
 wxImage wxXPMDecoder::ReadFile(wxInputStream& stream)


@@ -142,7 +143,7 @@ wxImage wxXPMDecoder::ReadFile(wxInputStream& stream)
     wxCharBuffer buffer(length);
 
     char *xpm_buffer = (char *)buffer.data();
     wxCharBuffer buffer(length);
 
     char *xpm_buffer = (char *)buffer.data();

-    if ( stream.Read(xpm_buffer, length).LastError() == wxSTREAM_READ_ERROR )
+    if ( stream.Read(xpm_buffer, length).GetLastError() == wxSTREAM_READ_ERROR )

         return wxNullImage;
     xpm_buffer[length] = '\0';
 
         return wxNullImage;
     xpm_buffer[length] = '\0';
 


@@ -487,6 +488,7 @@ static rgbRecord theRGBRecords[] =
     {"seagreen", myRGB(82, 149, 132)},
     {"seashell", myRGB(255, 245, 238)},
     {"sienna", myRGB(150, 82, 45)},
     {"seagreen", myRGB(82, 149, 132)},
     {"seashell", myRGB(255, 245, 238)},
     {"sienna", myRGB(150, 82, 45)},

+    {"silver", myRGB(192, 192, 192)},

     {"skyblue", myRGB(114, 159, 255)},
     {"slateblue", myRGB(126, 136, 171)},
     {"slategray", myRGB(112, 128, 144)},
     {"skyblue", myRGB(114, 159, 255)},
     {"slateblue", myRGB(126, 136, 171)},
     {"slategray", myRGB(112, 128, 144)},


@@ -507,7 +509,7 @@ static rgbRecord theRGBRecords[] =
     {"yellowgreen", myRGB(50, 216, 56)},
     {NULL, myRGB(0, 0, 0)}
 };
     {"yellowgreen", myRGB(50, 216, 56)},
     {NULL, myRGB(0, 0, 0)}
 };

-static int numTheRGBRecords = 234;
+static int numTheRGBRecords = 235;

 
 static unsigned char ParseHexadecimal(char digit1, char digit2)
 {
 
 static unsigned char ParseHexadecimal(char digit1, char digit2)
 {


@@ -545,8 +547,8 @@ static bool GetRGBFromName(const char *inname, bool *isNone,
         *r = ParseHexadecimal(inname[1], inname[2]);
         *g = ParseHexadecimal(inname[1*ofs+1], inname[1*ofs+2]);
         *b = ParseHexadecimal(inname[2*ofs+1], inname[2*ofs+2]);
         *r = ParseHexadecimal(inname[1], inname[2]);
         *g = ParseHexadecimal(inname[1*ofs+1], inname[1*ofs+2]);
         *b = ParseHexadecimal(inname[2*ofs+1], inname[2*ofs+2]);

-        *isNone = FALSE;
-        return TRUE;
+        *isNone = false;
+        return true;

     }
 
     name = strdup(inname);
     }
 
     name = strdup(inname);


@@ -580,12 +582,12 @@ static bool GetRGBFromName(const char *inname, bool *isNone,
     bool found;
     if ( strcmp(name, "none") == 0 )
     {
     bool found;
     if ( strcmp(name, "none") == 0 )
     {

-        *isNone = TRUE;
-        found = TRUE;
+        *isNone = true;
+        found = true;

     }
     else // not "None"
     {
     }
     else // not "None"
     {

-        found = FALSE;
+        found = false;

 
         // binary search:
         left = 0;
 
         // binary search:
         left = 0;


@@ -600,8 +602,8 @@ static bool GetRGBFromName(const char *inname, bool *isNone,
                 *r = (unsigned char)((rgbVal >> 16) & 0xFF);
                 *g = (unsigned char)((rgbVal >> 8) & 0xFF);
                 *b = (unsigned char)((rgbVal) & 0xFF);
                 *r = (unsigned char)((rgbVal >> 16) & 0xFF);
                 *g = (unsigned char)((rgbVal >> 8) & 0xFF);
                 *b = (unsigned char)((rgbVal) & 0xFF);

-                *isNone = FALSE;
-                found = TRUE;
+                *isNone = false;
+                found = true;

                 break;
             }
             else if ( cmp < 0 )
                 break;
             }
             else if ( cmp < 0 )


@@ -652,11 +654,11 @@ static const char *ParseColor(const char *data)
     return NULL;
 }
 
     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)
 {
 
 wxImage wxXPMDecoder::ReadData(const char **xpm_data)
 {


@@ -667,8 +669,10 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data)
     wxChar key[64];
     const char *clr_def;
     bool hasMask;
     wxChar key[64];
     const char *clr_def;
     bool hasMask;

-    wxXPMColourMapData *clr_data;
-    wxHashTable clr_tbl(wxKEY_STRING);
+    wxXPMColourMapData clr_data;
+    wxXPMColourMap clr_tbl;
+    wxXPMColourMap::iterator it;
+    wxString maskKey;

 
     /*
      *  Read hints and initialize structures:
 
     /*
      *  Read hints and initialize structures:


@@ -690,10 +694,9 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data)
     img.Create(width, height);
     if ( !img.Ok() ) return img;
 
     img.Create(width, height);
     if ( !img.Ok() ) return img;
 

-    img.SetMask(FALSE);
+    img.SetMask(false);

     key[chars_per_pixel] = wxT('\0');
     key[chars_per_pixel] = wxT('\0');

-    hasMask = FALSE;
-    clr_tbl.DeleteContents(TRUE);
+    hasMask = false;

 
     /*
      *  Create colour map:
 
     /*
      *  Create colour map:


@@ -702,41 +705,55 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data)
     {
         for (i_key = 0; i_key < chars_per_pixel; i_key++)
             key[i_key] = (wxChar)xpm_data[1 + i][i_key];
     {
         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 )
         {
 
         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;
+            wxLogError(_("XPM: malformed colour definition '%s'!"),
+                       xpm_data[1+i]);
+            clr_data.R = 255, clr_data.G = 0, clr_data.B = 255;

         }
         else
         {
             bool isNone;
             if ( !GetRGBFromName(clr_def, &isNone,
         }
         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;
+                wxLogError(_("XPM: malformed colour definition '%s'!"),
+                           xpm_data[1+i]);
+                clr_data.R = 255, clr_data.G = 0, clr_data.B = 255;

             }
             else
             {
                 if ( isNone )
                 {
             }
             else
             {
                 if ( isNone )
                 {

-                    img.SetMask(TRUE);
+                    img.SetMask(true);

                     img.SetMaskColour(255, 0, 255);
                     img.SetMaskColour(255, 0, 255);

-                    hasMask = TRUE;
-                    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;
+                    hasMask = true;
+                    clr_data.R = 255, clr_data.G = 0, clr_data.B = 255;
+                    maskKey = key;

                 }
             }
         }
                 }
             }
         }

-        clr_tbl.Put(key, clr_data);
+        clr_tbl[key] = clr_data;
+    }
+
+    /*
+     *  Modify colour entries with RGB = (255,0,255) to (255,0,254) if
+     *  mask colour is present (so that existing pixels with (255,0,255)
+     *  magenta colour are not incorrectly made transparent):
+     */
+    if (hasMask)
+    {
+        for (it = clr_tbl.begin(); it != clr_tbl.end(); it++)
+        {
+            if (it->second.R == 255 && it->second.G == 0 &&
+                it->second.B == 255 &&
+                it->first != maskKey)
+            {
+                it->second.B = 254;
+            }
+        }

     }
 
     /*
     }
 
     /*


@@ -744,6 +761,9 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data)
      */
 
     unsigned char *img_data = img.GetData();
      */
 
     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 (j = 0; j < height; j++)
     {
         for (i = 0; i < width; i++, img_data += 3)


@@ -751,16 +771,22 @@ wxImage wxXPMDecoder::ReadData(const char **xpm_data)
             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];
             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!"));
             {
                 wxLogError(_("XPM: Malformed pixel data!"));

+
+                // better return right now as otherwise we risk to flood the
+                // user with error messages as something seems to be seriously
+                // wrong with the file and so we could give this message for
+                // each remaining pixel if we don't bail out
+                return wxNullImage;

             }
             else
             {
             }
             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;

             }
         }
     }
             }
         }
     }