cppconsui/CoreManager.h

   1 // Copyright (C) 2007 Mark Pustjens <pustjens@dds.nl>
   2 // Copyright (C) 2009-2015 Petr Pavlu <setup@dagobah.cz>
   3 //
   4 // This file is part of CenterIM.
   5 //
   6 // CenterIM is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 2 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // CenterIM is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with CenterIM.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 /// @file
  20 /// CoreManager class
  21 ///
  22 /// @ingroup cppconsui
  23
  24 #ifndef COREMANAGER_H
  25 #define COREMANAGER_H
  26
  27 #include "CppConsUI.h"
  28 #include "Window.h"
  29
  30 #include <deque>
  31 #include <iconv.h>
  32 #include <termkey.h>
  33
  34 namespace CppConsUI {
  35
  36 /// CppConsUI manager.
  37 class CoreManager : public InputProcessor {
  38 public:
  39   int initializeInput(Error &error);
  40   int finalizeInput(Error &error);
  41
  42   int initializeOutput(Error &error);
  43   int finalizeOutput(Error &error);
  44
  45   /// Reads data from the standard input. The data are first converted from the
  46   /// user locale to the internal representation (UTF-8) and then processed by
  47   /// InputProcessor.
  48   int processStandardInput(int *wait, Error &error);
  49   int processStandardInputTimeout(Error &error);
  50
  51   int resize(Error &error);
  52   int draw(Error &error);
  53
  54   void registerWindow(Window &window);
  55   void removeWindow(Window &window);
  56   void hideWindow(Window &window);
  57   void topWindow(Window &window);
  58   Window *getTopWindow();
  59
  60   void setTopInputProcessor(InputProcessor &top)
  61   {
  62     top_input_processor_ = &top;
  63   }
  64   InputProcessor *getTopInputProcessor() { return top_input_processor_; }
  65
  66   void logDebug(const char *message);
  67   void redraw(bool from_scratch = false);
  68
  69   bool isRedrawPending() const;
  70
  71   void onScreenResized();
  72
  73   void onWindowMoveResize(
  74     Window &activator, const Rect &oldsize, const Rect &newsize);
  75   void onWindowWishSizeChange(
  76     Window &activator, const Size &oldsize, const Size &newsize);
  77
  78   TermKey *getTermKeyHandle() { return tk_; };
  79
  80   sigc::signal<void> signal_resize;
  81   sigc::signal<void> signal_top_window_change;
  82
  83 private:
  84   typedef std::deque<Window *> Windows;
  85
  86   enum PendingRedraw {
  87     REDRAW_NONE,
  88     REDRAW_NORMAL,
  89     REDRAW_FROM_SCRATCH,
  90   };
  91
  92   Windows windows_;
  93   AppInterface interface_;
  94   InputProcessor *top_input_processor_;
  95
  96   TermKey *tk_;
  97   iconv_t iconv_desc_;
  98
  99   PendingRedraw pending_redraw_;
 100
 101   CoreManager(AppInterface &set_interface);
 102   ~CoreManager() {}
 103   CONSUI_DISABLE_COPY(CoreManager);
 104
 105   friend void initializeConsUI(AppInterface &interface);
 106   friend void finalizeConsUI();
 107
 108   // InputProcessor
 109   virtual bool processInput(const TermKeyKey &key) override;
 110
 111   void updateArea();
 112   void updateWindowArea(Window &window);
 113
 114   int drawWindow(Window &window, Error &error);
 115
 116   Windows::iterator findWindow(Window &window);
 117   void focusWindow();
 118
 119   void redrawScreen();
 120
 121   void declareBindables();
 122 };
 123
 124 } // namespace CppConsUI
 125
 126 #endif // COREMANGER_H
 127
 128 // vim: set tabstop=2 shiftwidth=2 textwidth=80 expandtab: