Revision: 7949
http://playerstage.svn.sourceforge.net/playerstage/?rev=7949&view=rev
Author: rtv
Date: 2009-07-03 21:46:04 +0000 (Fri, 03 Jul 2009)
Log Message:
-----------
added missing new file
Added Paths:
-----------
code/stage/trunk/libstage/color.cc
Added: code/stage/trunk/libstage/color.cc
===================================================================
--- code/stage/trunk/libstage/color.cc (rev 0)
+++ code/stage/trunk/libstage/color.cc 2009-07-03 21:46:04 UTC (rev 7949)
@@ -0,0 +1,109 @@
+#include "stage.hh"
+using namespace Stg;
+
+#include "file_manager.hh"
+#include <errno.h>
+
+Color::Color( float r, float g, float b, float a )
+ : r(r),g(g),b(b),a(a)
+{}
+
+Color::Color() :
+ r(1.0), g(0.0), b(0.0), a(1.0)
+{}
+
+bool Color::operator!=( const Color& other )
+{
+ double epsilon = 1e-4; // small
+ return( fabs(r-other.r) > epsilon ||
+ fabs(g-other.g) > epsilon ||
+ fabs(b-other.b) > epsilon ||
+ fabs(a-other.a) > epsilon );
+}
+
+Color::Color( const char *name) :
+ r(1), g(0), b(0), a(1)
+{
+ if( name == NULL ) // no string?
+ return; // red
+
+ if( strcmp( name, "" ) == 0 ) // empty string?
+ return; // red
+
+ static FILE *file = NULL;
+ static GHashTable* table = g_hash_table_new( g_str_hash, g_str_equal );
+
+ if( file == NULL )
+ {
+ std::string rgbFile = FileManager::findFile( "rgb.txt" );
+ file = fopen( rgbFile.c_str(), "r" );
+
+ if( file == NULL )
+ {
+ PRINT_ERR1("unable to open color database: %s "
+ "(try adding rgb.txt's location to
your STAGEPATH)",
+ strerror(errno));
+ exit(0);
+ }
+
+ PRINT_DEBUG( "Success!" );
+
+ // load the file into the hash table
+ while (TRUE)
+ {
+ char line[1024];
+ if (!fgets(line, sizeof(line), file))
+ break;
+
+ // it's a macro or comment line - ignore the line
+ if (line[0] == '!' || line[0] == '#' || line[0] == '%')
+ continue;
+
+ // Trim the trailing space
+ while (strchr(" \t\n", line[strlen(line)-1]))
+ line[strlen(line)-1] = 0;
+
+ // Read the color
+ int r, g, b;
+ int chars_matched = 0;
+ sscanf( line, "%d %d %d %n", &r, &g, &b, &chars_matched
);
+
+ Color* c = new Color( r / 255.0,
+ g / 255.0,
+ b / 255.0,
+ 1.0 );
+
+ // Read the name
+ char* colorname = strdup( line + chars_matched );
+
+ // map the name to the color in the table
+ g_hash_table_insert( table, (gpointer)colorname,
(gpointer)c );
+ }
+ fclose(file);
+ }
+
+ // look up the colorname in the database
+ //stg_color_t* found = (stg_color_t*)g_hash_table_lookup( table, name );
+
+ Color* found = (Color*)g_hash_table_lookup( table, name );
+ this->r = found->r;
+ this->g = found->g;
+ this->b = found->b;
+ this->a = found->a;
+}
+
+bool Color::operator==( const Color& other )
+{
+ return( ! ((*this) != other) );
+}
+
+Color Color::RandomColor()
+{
+ return Color( drand48(), drand48(), drand48() );
+}
+
+void Color::Print( const char* prefix )
+{
+ printf( "%s [%.2f %.2f %.2f %.2f]\n", prefix, r,g,b,a );
+}
+
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