Exemple #1
0
/**
 * @brief Prints a block of text that fits in the dimensions given.
 *
 * Positions are based on origin being top-left.
 *
 *    @param ft_font Font to use.
 *    @param width Maximum width to print to.
 *    @param height Maximum height to print to.
 *    @param bx X position to display text at.
 *    @param by Y position to display text at.
 *    @param c Colour to use (NULL defaults to white).
 *    @param fmt Text to display formatted like printf.
 *    @return 0 on success.
 * prints text with line breaks included to a maximum width and height preset
 */
int gl_printTextRaw( const glFont *ft_font,
      const int width, const int height,
      double bx, double by,
      const glColour* c, const char *text )
{
   int p, s;
   double x,y;
   size_t i, ret;
   uint32_t ch;

   if (ft_font == NULL)
      ft_font = &gl_defFont;
   glFontStash *stsh = gl_fontGetStash( ft_font );

   x = bx;
   y = by + height - (double)stsh->h; /* y is top left corner */

   /* Clears restoration. */
   gl_printRestoreClear();

   i = 0;
   s = 0;
   p = 0; /* where we last drew up to */
   while (y - by > -1e-5) {
      ret = p + gl_printWidthForText( ft_font, &text[p], width );

      /* Must restore stuff. */
      gl_printRestoreLast();

      /* Render it. */
      gl_fontRenderStart(stsh, x, y, c);
      for (i=p; i<ret; ) {
         ch = u8_nextchar( text, &i);
         s = gl_fontRenderGlyph( stsh, ch, c, s );
      }
      gl_fontRenderEnd();

      if (ch == '\0')
         break;
      p = i;
      if ((text[p] == '\n') || (text[p] == ' '))
         p++; /* Skip "empty char". */
      y -= 1.5*(double)stsh->h; /* move position down */
   }


   return 0;
}
Exemple #2
0
/**
 * @brief Renders the overlays.
 */
void omsg_render( double dt )
{
   int i, j;
   double x, y;
   omsg_t *omsg;
   glFont *font;
   glColour col;

   /* Case nothing to do. */
   if (omsg_array == NULL)
      return;

   /* Center. */
   x  = omsg_center_x - omsg_center_w/2.;
   y  = omsg_center_y;

   /* Render. */
   for (i=0; i<array_size(omsg_array); i++) {
      omsg  = &omsg_array[i];

      /* Check if time to erase. */
      omsg->duration -= dt;
      if (omsg->duration < 0.) {
         omsg_free( omsg );
         array_erase( &omsg_array, &omsg[0], &omsg[1] );
         i--;
         continue;
      }

      /* Must have a message. */
      if (omsg->msg == NULL)
         continue;

      /* Render. */
      font = omsg_getFont( omsg->font );
      memcpy( &col, omsg->col, sizeof(glColour) );
      if (omsg->duration < 1.)
         col.a = omsg->duration;
      for (j=0; j<omsg->nlines; j++) {
         y -= font->h * 1.5;
         if (j>0)
            gl_printRestoreLast();
         gl_printMidRaw( font, omsg_center_w, x, y, &col, omsg->msg[j] );
      }
   }
}