Subversion Repositories Games.Chess Giants

// interlocutor.cpp

#include "common.h"

// global variables used in this module only

static const wchar_t rtf_header[] = L"{\\rtf1\\ansi"

                                       L"{\\fonttbl\\f0\\f{Comic Sans MS};}"

                                       L"{\\colortbl;\\red0\\green0\\blue0;\\red192\\green192\\blue192;\\red0\\green0\\blue100;\\red160\\green160\\blue160;}"

                                       L"\\f0\\fs18\\cf3\\pard\n"

                                    L"}\n";

static wchar_t text_buffer[1024 * 1024];

void Interlocutors_Init (void)

{

   // this function resets the interlocutors array, preparing it for a new use

   interlocutors = NULL; // reset the array pointer

   interlocutor_count = 0; // and set the element count to zero

   return; // that's all there is

}

void Interlocutors_Shutdown (void)

{

   // this function empties the interlocutors array, closing windows and freeing allocated resources

   int interlocutor_index;

   // for each player card we know...

   for (interlocutor_index = 0; interlocutor_index < interlocutor_count; interlocutor_index++)

   {

      if (IsWindow (interlocutors[interlocutor_index].hWnd))

         DestroyWindow (interlocutors[interlocutor_index].hWnd); // destroy any eventual opened chat window

      SAFE_free ((void **) &interlocutors[interlocutor_index].dialogtext); // free the interlocutor's dialog text buffer

      interlocutors[interlocutor_index].dialogtext_size = 0; // and reset this buffer's size

   }

   SAFE_free ((void **) &interlocutors); // free the chat interlocutors array

   interlocutor_count = 0; // and reset the interlocutors count

   return; // finished

}

interlocutor_t *Interlocutor_FindOrCreate (const wchar_t *nickname)

{

   // this function returns a pointer to the interlocutor whose nickname is specified,

   // creating a new slot for him in the interlocutors array if he can't be found.

   interlocutor_t *interlocutor;

   int interlocutor_index;

   // see if we already know this interlocutor, loop through all of them...

   for (interlocutor_index = 0; interlocutor_index < interlocutor_count; interlocutor_index++)

      if (_wcsicmp (nickname, interlocutors[interlocutor_index].nickname) == 0)

         break; // break as soon as we find it

   // have we found it ?

   if (interlocutor_index < interlocutor_count)

   {

      // get a quick access to interlocutor

      interlocutor = &interlocutors[interlocutor_index];

      // is this interlocutor NO LONGER active ?

      if (!interlocutor->is_active)

      {

         interlocutor->hWnd = NULL; // reset some values for this interlocutor

         interlocutor->current_displaypicture = 0;

         interlocutor->is_active = true; // remember it's becoming active again

         Window_Chat (interlocutor_index); // his chat window has been closen, so fire it up again

      }

      else

      {

         // does the chat window exist AND is it currently NOT the foreground window ?

         if (IsWindow (interlocutor->hWnd) && (GetForegroundWindow () != interlocutor->hWnd))

         {

            interlocutor->update_dialog = true; // update this interlocutor's window

            ShowWindow (interlocutor->hWnd, SW_RESTORE); // restore it from the taskbar

            SetForegroundWindow (interlocutor->hWnd); // bring the window to front if necessary

         }

      }

   }

   // else we haven't found it

   else

   {

      // so resize our interlocutors array and add this interlocutor to it

      interlocutors = (interlocutor_t *) SAFE_realloc (interlocutors, interlocutor_count, interlocutor_count + 1, sizeof (interlocutor_t), false);

      interlocutor_count++; // we know now one interlocutor more

      // get a quick access to interlocutor. Only do it after the realloc, as the array may have moved.

      interlocutor = &interlocutors[interlocutor_index];

      // reset some values for this new interlocutor

      wcscpy_s (interlocutor->nickname, WCHAR_SIZEOF (interlocutor->nickname), nickname); // save nickname

      interlocutor->hWnd = NULL;

      interlocutor->dialogtext = NULL; // no dialog text yet

      interlocutor->dialogtext_size = 0;

      interlocutor->current_displaypicture = 0;

      interlocutor->is_active = true;

      // and fire up the new chat window

      Window_Chat (interlocutor_index);

   }

   return (interlocutor); // return pointer to interlocutor

}

interlocutor_t *Interlocutor_FindByWindowHandle (HWND window_handle)

{

   // this function returns a pointer to the interlocutor whose chat window handle

   // matches the one specified. If no such chat window exists, NULL is returned.

   int interlocutor_index;

   // cycle through all interlocutors and find the one we want...

   for (interlocutor_index = 0; interlocutor_index < interlocutor_count; interlocutor_index++)

      if (interlocutors[interlocutor_index].hWnd == window_handle)

         return (&interlocutors[interlocutor_index]); // found it, return its pointer

   return (NULL); // we couldn't find that interlocutor, return FALSE

}

void Interlocutor_Chat (interlocutor_t *interlocutor, const wchar_t *sender, bool is_localsender, const wchar_t *fmt, ...)

{

   // helper function to quickly add an entry to an interlocutor's RTF chat window

   // {\rtf1\ansi{\fonttbl\f0\fswiss Helvetica;}\f0\pard

   // This is some {\b bold} text.\par

   // }

   // NOTE: color table indices are 1-based

   static const wchar_t rtf_template[] = L"{\\cf%d\\b %s}\\par\n"

                                         L"   %s\\par\n"

                                         L"}\n";

   static const int template_length = WCHAR_SIZEOF (rtf_template) - 6 - 2; // don't take in account closing brace, it's counted in the header

   va_list argptr;

   int sender_length;

   int text_length;

   int smiley_index;

   smiley_t *smiley;

   wchar_t *smiley_text;

   wchar_t *after_smiley;

   // if dialog is just starting, we need to insert a RTF header

   if (interlocutor->dialogtext == NULL)

   {

      interlocutor->dialogtext = (wchar_t *) SAFE_malloc (WCHAR_SIZEOF (rtf_header), sizeof (wchar_t), false); // allocate space for it

      wcscpy_s (interlocutor->dialogtext, WCHAR_SIZEOF (rtf_header), rtf_header); // copy RTF header

      interlocutor->dialogtext_size = WCHAR_SIZEOF (rtf_header); // save RTF header length

   }

   // concatenate all the arguments in one string, but have a space before and after it

   wcscpy_s (text_buffer, WCHAR_SIZEOF (text_buffer), L" ");

   va_start (argptr, fmt);

   vswprintf_s (&text_buffer[1], WCHAR_SIZEOF (text_buffer), fmt, argptr);

   va_end (argptr);

   wcscat_s (text_buffer, WCHAR_SIZEOF (text_buffer), L" ");

   // as long as there are smilies in this text, replace them with their equivalent data

   for (smiley_index = 0; smiley_index < smiley_count; smiley_index++)

   {

      smiley = &smilies[smiley_index]; // quick access to smiley

      while ((smiley_text = wcsistr (text_buffer, smiley->name)) != NULL)

      {

         after_smiley = smiley_text + wcslen (smiley->name);

         memmove (smiley_text + smiley->rtf_len, after_smiley, (wcslen (after_smiley) + 1) * sizeof (wchar_t));

         memcpy (smiley_text, smiley->rtf_data, smiley->rtf_len * sizeof (wchar_t));

      }

   }

   // get sender and text lengths

   sender_length = wcslen (sender);

   text_length = wcslen (text_buffer);

   // resize the chat text buffer

   interlocutor->dialogtext = (wchar_t *) SAFE_realloc (interlocutor->dialogtext,

                                                        interlocutor->dialogtext_size,

                                                        interlocutor->dialogtext_size + template_length + 1 + sender_length + text_length,

                                                        sizeof (wchar_t), false);

   // append the message to the chat text and save the new text length (overwrite the closing brace)

   swprintf_s (&interlocutor->dialogtext[wcslen (interlocutor->dialogtext) - 2],

               template_length + 1 + sender_length + text_length + 2 + 1, // +1 for null terminator

               rtf_template, (is_localsender ? 2 : 1), sender, text_buffer);

   interlocutor->dialogtext_size += template_length + 1 + sender_length + text_length; // save new string length

   // and tell our chat window there's a new message to display

   interlocutor->update_dialog = true;

   return; // finished

}

void Interlocutor_Notify (interlocutor_t *interlocutor, const wchar_t *fmt, ...)

{

   // helper function to quickly add an entry to an interlocutor's RTF chat window

   // {\rtf1\ansi{\fonttbl\f0\fswiss Helvetica;}\f0\pard

   // This is some {\b bold} text.\par

   // }

   // NOTE: color table indices are 1-based

   static const wchar_t rtf_template[] = L"{\\cf4\\fs16\\i • %s}\\par\n"

                                         L"}\n";

   static const int template_length = WCHAR_SIZEOF (rtf_template) - 2 - 2; // don't take in account closing brace, it's counted in the header

   va_list argptr;

   int text_length;

   // if dialog is just starting, we need to insert a RTF header

   if (interlocutor->dialogtext == NULL)

   {

      interlocutor->dialogtext = (wchar_t *) SAFE_malloc (WCHAR_SIZEOF (rtf_header), sizeof (wchar_t), false); // allocate space for it

      wcscpy_s (interlocutor->dialogtext, WCHAR_SIZEOF (rtf_header), rtf_header); // copy RTF header

      interlocutor->dialogtext_size = WCHAR_SIZEOF (rtf_header); // save RTF header length

   }

   // concatenate all the arguments in one string

   va_start (argptr, fmt);

   vswprintf_s (text_buffer, WCHAR_SIZEOF (text_buffer), fmt, argptr);

   va_end (argptr);

   // get text length

   text_length = wcslen (text_buffer);

   // resize the chat text buffer

   interlocutor->dialogtext = (wchar_t *) SAFE_realloc (interlocutor->dialogtext,

                                                        interlocutor->dialogtext_size,

                                                        interlocutor->dialogtext_size + template_length + text_length,

                                                        sizeof (wchar_t), false);

   // append the message to the chat text and save the new text length (overwrite the closing brace)

   swprintf_s (&interlocutor->dialogtext[wcslen (interlocutor->dialogtext) - 2],

               template_length + text_length + 2 + 1, // +1 for null terminator

               rtf_template, text_buffer);

   interlocutor->dialogtext_size += template_length + text_length; // save new string length

   // and tell our chat window there's a new message to display

   interlocutor->update_dialog = true;

   return; // finished

}