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dot_tmux/plugins/tmux-mem-cpu-load/common/powerline.cc

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+/* vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
+ *
+ * Copyright 2012 Matthew McCormick
+ * Copyright 2016 Michał Goliński
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "powerline.h"
+
+#include <string>
+#include <cstring>
+#include <sstream>
+
+#define PWL_LEFT_FILLED ""
+#define PWL_RIGHT_FILLED ""
+
+const char * bg2fg( const char s[] )
+{
+  static char buf[40] = {0};
+  const char *substr = strchr(s, ',');
+  buf[0] = '#';
+  buf[1] = '[';
+  buf[2] = 'f';
+  strcpy(buf+3, substr+2);
+  return buf;
+}
+
+
+void powerline( std::ostringstream & oss, const char color[],
+  POWERLINE_DIRECTION direction, bool background_only )
+{
+  switch( direction )
+    {
+  case NONE:
+    oss << color;
+    break;
+  case POWERLINE_LEFT:
+    if( background_only )
+      {
+      oss << ' ' << bg2fg( color );
+      }
+    else
+      {
+      std::string colorstr( color );
+      oss << "#[" << colorstr.substr( colorstr.find( "," ) + 1 )
+          << PWL_LEFT_FILLED
+          << color;
+      }
+    break;
+  case POWERLINE_RIGHT:
+    oss << ' '
+        << bg2fg( color )
+        << PWL_RIGHT_FILLED
+        << color;
+    break;
+    };
+}
+
+void powerline_char( std::ostringstream & oss, const char dynamic_color[],
+  short static_color, POWERLINE_DIRECTION direction, bool eol )
+{
+  char write_color[7];
+  sprintf(write_color, "%d", static_color);
+  switch( direction )
+  {
+    case POWERLINE_LEFT:
+      if ( eol )
+      {
+      oss << bg2fg( dynamic_color ) << "#[bg=colour" << write_color << "]";
+      }
+      else
+      {
+      oss << dynamic_color << "#[fg=colour" << write_color << "]";
+      }
+      oss << PWL_LEFT_FILLED << dynamic_color;
+    break;
+    case POWERLINE_RIGHT:
+      if ( eol )
+      {
+        oss << dynamic_color << "#[fg=colour" << write_color << "] ";
+      }
+      else
+      {
+        oss << bg2fg(dynamic_color) << " #[bg=colour" << write_color << "]";
+      }
+      oss << PWL_RIGHT_FILLED << dynamic_color;
+    break;
+  }
+}