Blinker

implement color setting
Parent 268b924
Stefan Schuermans

Stefan Schuermans commited on 2019-06-09 20:32:40
Showing 3 changed files, with 120 additions and 0 deletions.

src/common/Color.cpp
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+/* Blinker
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+   Copyright 2011-2019 Stefan Schuermans <stefan@blinkenarea.org>
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+   Copyleft GNU public license - http://www.gnu.org/copyleft/gpl.html
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+   a blinkenarea.org project */
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+
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+#include <iomanip>
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+#include <sstream>
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+#include <string>
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+
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+#include "Color.h"
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+#include "StringParser.h"
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+
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+namespace Blinker {
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+
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+/// constructor
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+Color::Color():
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+  m_red(0),
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+  m_green(0),
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+  m_blue(0)
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+{
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+}
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+
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+/**
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+ * @brief parse from string
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+ * @param[in] str color as string in web format
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+ * @return if parsing was successful
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+ */
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+bool Color::fromStr(const std::string &str)
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+{
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+  StringParser parser(str);
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+  unsigned int red, green, blue;
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+  if (!parser.uintHex(2, red) ||
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+      !parser.uintHex(2, green) ||
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+      !parser.uintHex(2, blue) ||
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+      !parser.isDone()) {
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+    return false;
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+  }
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+  m_red = red;
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+  m_green = green;
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+  m_blue = blue;
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+  return true;
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+}
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+
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+/**
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+ * @brief convert to string
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+ * @return color as string in web format
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+ */
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+std::string Color::toStr() const
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+{
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+  std::stringstream strm;
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+  strm << std::hex << std::setw(2) << std::setfill('0')
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+       << m_red << m_green << m_blue;
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+  return strm.str();
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+}
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+
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+} // namespace Blinker
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+
src/common/Color.h
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+/* Blinker
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+   Copyright 2011-2019 Stefan Schuermans <stefan@blinkenarea.org>
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+   Copyleft GNU public license - http://www.gnu.org/copyleft/gpl.html
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+   a blinkenarea.org project */
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+
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+#ifndef BLINKER_COLOR_H
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+#define BLINKER_COLOR_H
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+
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+#include <string>
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+
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+namespace Blinker {
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+
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+/// a color (24 bit RGB in web notation)
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+class Color
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+{
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+public:
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+  /// constructor
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+  Color();
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+
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+public:
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+  /**
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+   * @brief parse from string
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+   * @param[in] str color as string in web format
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+   * @return if parsing was successful
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+   */
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+  bool fromStr(const std::string &str);
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+
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+  /**
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+   * @brief convert to string
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+   * @return color as string in web format
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+   */
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+  std::string toStr() const;
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+
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+public:
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+  unsigned char m_red;   ///< red channel of color
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+  unsigned char m_green; ///< red channel of color
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+  unsigned char m_blue;  ///< red channel of color
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+}; // class Color
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+
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+} // namespace Blinker
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+
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+#endif // #ifndef BLINKER_COLOR_H
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+
src/common/ColorFile.h
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+/* Blinker
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+   Copyright 2011-2019 Stefan Schuermans <stefan@blinkenarea.org>
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+   Copyleft GNU public license - http://www.gnu.org/copyleft/gpl.html
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+   a blinkenarea.org project */
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+
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+#ifndef BLINKER_COLORFILE_H
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+#define BLINKER_COLORFILE_H
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+
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+#include "Color.h"
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+#include "SettingFile_impl.h"
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+
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+namespace Blinker {
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+
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+/// setting file containting color
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+typedef SettingFile<Color> ColorFile;
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+
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+} // namespace Blinker
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+
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+#endif // #ifndef BLINKER_COLORFILE_H
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+
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