Program Listing for File help_panel.h

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#ifndef LOG_VIEW_HELP_PANEL_H_
#define LOG_VIEW_HELP_PANEL_H_

#include <string>
#include <vector>

#include <log_view/panel_interface.h>

namespace log_view {

struct HelpText {
  int line;
  std::string key;
  std::string description;
};

class HelpPanel : public PanelInterface {
  public:
  HelpPanel(int height, int width, int y, int x);
  virtual ~HelpPanel() {}
  virtual void refresh();
  virtual void resize(int height, int width, int y, int x);
  virtual bool handleMouse(const MEVENT& event) { return !hidden(); }
  virtual bool handleKey(int key);

  protected:
  virtual bool canNavigate() const { return !hidden(); }

  void printKeybinding(const HelpText& text);

  std::vector<HelpText> keys_;
  size_t longest_key_ = 0;
  size_t longest_line_ = 0;
};
typedef std::shared_ptr<HelpPanel> HelpPanelPtr;

}  // namespace log_view

#endif  // LOG_VIEW_HELP_PANEL_H_