add support for GIMP palettes for dye colors.

Palette file must be named palette.gpl and contain
colors with correct names.

To use it in dye string can be used character @.
Example:
    <color id="2" name="black" value="@Untitled7,Untitled8,Untitled6"/>

in all dye string it not tested.

4 files changed, 205 insertions, 50 deletions

diff --git a/src/resources/dye.cpp b/src/resources/dye.cpp
index 960ac36ae..9997fc6ae 100644
--- a/src/resources/dye.cpp
+++ b/src/resources/dye.cpp
@@ -24,6 +24,8 @@
 
 #include "logger.h"
 
+#include "resources/palettedb.h"
+
 #include <math.h>
 #include <sstream>
 
@@ -33,42 +35,52 @@ DyePalette::DyePalette(const std::string &description,
                        const int8_t blockSize) :
     mColors()
 {
-    const int size = static_cast<int>(description.length());
+    const size_t size = static_cast<int>(description.length());
     if (size == 0)
         return;
-    if (description[0] != '#')
-    {
-        // TODO: load palette from file.
-        return;
-    }
 
-    int pos = 1;
-    for ( ; ; )
+    if (description[0] == '#')
     {
-        if (pos + blockSize > size)
-            break;
-
-        Color color =
+        size_t pos = 1;
+        for ( ; ; )
         {
-            {0, 0, 0, 0}
-        };
+            if (pos + blockSize > size)
+                break;
 
-        for (int i = 0, colorIdx = 0; i < blockSize && colorIdx < 4;
-             i += 2, colorIdx ++)
-        {
-            color.value[colorIdx] = static_cast<unsigned char>((
-                hexDecode(description[pos + i]) << 4)
-                + hexDecode(description[pos + i + 1]));
-        }
-        mColors.push_back(color);
-        pos += blockSize;
+            DyeColor color(0, 0, 0, 0);
 
-        if (pos == size)
-            return;
-        if (description[pos] != ',')
-            break;
+            for (int i = 0, colorIdx = 0; i < blockSize && colorIdx < 4;
+                 i += 2, colorIdx ++)
+            {
+                color.value[colorIdx] = static_cast<unsigned char>((
+                    hexDecode(description[pos + i]) << 4)
+                    + hexDecode(description[pos + i + 1]));
+            }
+            mColors.push_back(color);
+            pos += blockSize;
 
-        ++pos;
+            if (pos == size)
+                return;
+            if (description[pos] != ',')
+                break;
+
+            ++pos;
+        }
+    }
+    else if (description[0] == '@')
+    {
+        size_t pos = 1;
+        for ( ; pos < size ; )
+        {
+            const size_t idx = description.find(',', pos);
+            if (idx == std::string::npos)
+                return;
+            if (idx == pos)
+                break;
+            mColors.push_back(PaletteDB::getColor(
+                description.substr(pos, idx - pos)));
+            pos = idx + 1;
+        }
     }
 
     logger->log("Error, invalid embedded palette: %s", description.c_str());
@@ -185,15 +197,15 @@ void DyePalette::getColor(double intensity, int color[3]) const
 
 void DyePalette::replaceSColor(uint8_t *const color) const
 {
-    std::vector<Color>::const_iterator it = mColors.begin();
-    const std::vector<Color>::const_iterator it_end = mColors.end();
+    std::vector<DyeColor>::const_iterator it = mColors.begin();
+    const std::vector<DyeColor>::const_iterator it_end = mColors.end();
     while (it != it_end)
     {
-        const Color &col = *it;
+        const DyeColor &col = *it;
         ++ it;
         if (it == it_end)
             return;
-        const Color &col2 = *it;
+        const DyeColor &col2 = *it;
         if (color[0] == col.value[0] && color[1] == col.value[1]
             && color[2] == col.value[2])
         {
@@ -208,15 +220,15 @@ void DyePalette::replaceSColor(uint8_t *const color) const
 
 void DyePalette::replaceAColor(uint8_t *const color) const
 {
-    std::vector<Color>::const_iterator it = mColors.begin();
-    const std::vector<Color>::const_iterator it_end = mColors.end();
+    std::vector<DyeColor>::const_iterator it = mColors.begin();
+    const std::vector<DyeColor>::const_iterator it_end = mColors.end();
     while (it != it_end)
     {
-        const Color &col = *it;
+        const DyeColor &col = *it;
         ++ it;
         if (it == it_end)
             return;
-        const Color &col2 = *it;
+        const DyeColor &col2 = *it;
         if (color[1] == col.value[0] && color[2] == col.value[1]
             && color[3] == col.value[2] && color[0] == col.value[3])
         {
@@ -232,15 +244,15 @@ void DyePalette::replaceAColor(uint8_t *const color) const
 
 void DyePalette::replaceSOGLColor(uint8_t *const color) const
 {
-    std::vector<Color>::const_iterator it = mColors.begin();
-    const std::vector<Color>::const_iterator it_end = mColors.end();
+    std::vector<DyeColor>::const_iterator it = mColors.begin();
+    const std::vector<DyeColor>::const_iterator it_end = mColors.end();
     while (it != it_end)
     {
-        const Color &col = *it;
+        const DyeColor &col = *it;
         ++ it;
         if (it == it_end)
             return;
-        const Color &col2 = *it;
+        const DyeColor &col2 = *it;
         if (color[2] == col.value[0] && color[1] == col.value[1]
             && color[0] == col.value[2])
         {
@@ -255,15 +267,15 @@ void DyePalette::replaceSOGLColor(uint8_t *const color) const
 
 void DyePalette::replaceAOGLColor(uint8_t *const color) const
 {
-    std::vector<Color>::const_iterator it = mColors.begin();
-    const std::vector<Color>::const_iterator it_end = mColors.end();
+    std::vector<DyeColor>::const_iterator it = mColors.begin();
+    const std::vector<DyeColor>::const_iterator it_end = mColors.end();
     while (it != it_end)
     {
-        const Color &col = *it;
+        const DyeColor &col = *it;
         ++ it;
         if (it == it_end)
             return;
-        const Color &col2 = *it;
+        const DyeColor &col2 = *it;
         if (color[2] == col.value[0] && color[1] == col.value[1]
             && color[0] == col.value[2] && color[3] == col.value[3])
         {
diff --git a/src/resources/dye.h b/src/resources/dye.h
index 442a514d7..efcf95420 100644
--- a/src/resources/dye.h
+++ b/src/resources/dye.h
@@ -23,11 +23,11 @@
 #ifndef DYE_H
 #define DYE_H
 
+#include "resources/dyecolor.h"
+
 #include <string>
 #include <vector>
 
-#include <SDL_stdinc.h>
-
 #include "localconsts.h"
 
 const int dyePalateSize = 9;
@@ -83,10 +83,7 @@ class DyePalette final
         static int hexDecode(const signed char c) A_WARN_UNUSED;
 
     private:
-        struct Color
-        { unsigned char value[4]; };
-
-        std::vector<Color> mColors;
+        std::vector<DyeColor> mColors;
 };
 
 /**
diff --git a/src/resources/palettedb.cpp b/src/resources/palettedb.cpp
new file mode 100644
index 000000000..c770a9cdc
--- /dev/null
+++ b/src/resources/palettedb.cpp
@@ -0,0 +1,107 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2013  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "resources/palettedb.h"
+
+#include "logger.h"
+
+#include "resources/dyecolor.h"
+#include "resources/resourcemanager.h"
+
+#include "utils/stringvector.h"
+
+#include <map>
+
+#include "debug.h"
+
+namespace
+{
+    bool mLoaded = false;
+    std::map<std::string, DyeColor> mColors;
+    DyeColor mEmpty(0, 0, 0, 0);
+}
+
+void PaletteDB::load()
+{
+    if (mLoaded)
+        unload();
+
+    loadPalette();
+}
+
+void PaletteDB::loadPalette()
+{
+    mLoaded = true;
+    StringVect lines;
+    ResourceManager::loadTextFile("palette.gpl", lines);
+    StringVectCIter it = lines.begin();
+    if (it == lines.end())
+    {
+        logger->log("missing GIMP palette file");
+        return;
+    }
+    if (*it != "GIMP Palette")
+    {
+        logger->log("wrong GIMP palette file");
+        return;
+    }
+    ++ it;
+    // skip header
+    while (it != lines.end())
+    {
+        const std::string line = *it;
+        if (!line.empty() && line[0] == '#')
+            break;
+        ++ it;
+    }
+
+    char name[101];
+
+    // process colors and ignore commets
+    while (it != lines.end())
+    {
+        const std::string line = *it;
+        ++ it;
+
+        if (line.empty() || line[0] == '#')
+            continue;
+
+        unsigned int r;
+        unsigned int g;
+        unsigned int b;
+
+        if (sscanf(line.c_str(), "%u %u %u\t%s", &r, &g, &b, name) == 4)
+            mColors[name] = DyeColor(r, g, b);
+    }
+}
+
+void PaletteDB::unload()
+{
+    mColors.clear();
+}
+
+const DyeColor &PaletteDB::getColor(const std::string &name)
+{
+    std::map<std::string, DyeColor>::const_iterator it = mColors.find(name);
+    if (it != mColors.end())
+        return (*it).second;
+    else
+        return mEmpty;
+}
diff --git a/src/resources/palettedb.h b/src/resources/palettedb.h
new file mode 100644
index 000000000..28b901799
--- /dev/null
+++ b/src/resources/palettedb.h
@@ -0,0 +1,39 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2013  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PALETTEDB_H
+#define PALETTEDB_H
+
+#include "localconsts.h"
+
+#include <string>
+
+struct DyeColor;
+
+namespace PaletteDB
+{
+    void load();
+    void unload();
+    void loadPalette();
+    const DyeColor &getColor(const std::string &name);
+
+}  // namespace PaletteDB
+
+#endif