// * this is for making emacs happy: -*-Mode: C++;-*-/**************************************************************************** * Copyright (c) 1998-2002,2003 Free Software Foundation, Inc.              * *                                                                          * * Permission is hereby granted, free of charge, to any person obtaining a  * * copy of this software and associated documentation files (the            * * "Software"), to deal in the Software without restriction, including      * * without limitation the rights to use, copy, modify, merge, publish,      * * distribute, distribute with modifications, sublicense, and/or sell       * * copies of the Software, and to permit persons to whom the Software is    * * furnished to do so, subject to the following conditions:                 * *                                                                          * * The above copyright notice and this permission notice shall be included  * * in all copies or substantial portions of the Software.                   * *                                                                          * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    * * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               * *                                                                          * * Except as contained in this notice, the name(s) of the above copyright   * * holders shall not be used in advertising or otherwise to promote the     * * sale, use or other dealings in this Software without prior written       * * authorization.                                                           * ****************************************************************************//**************************************************************************** *   Author: Juergen Pfeifer, 1999                                          * ****************************************************************************/#include "internal.h"#include "etip.h"#include "cursesw.h"MODULE_ID("$Id: cursespad.cc,v 1.7 2003/10/25 15:04:46 tom Exp $")NCursesPad::NCursesPad(int lines, int cols)  : NCursesWindow(),    viewWin((NCursesWindow*)0),    viewSub((NCursesWindow*)0),    h_gridsize(0), v_gridsize(0),    min_row(0), min_col(0){  w = ::newpad(lines,cols);  if ((WINDOW*)0==w) {    count--;    err_handler("Cannot construct window");  }  alloced = TRUE;}int NCursesPad::driver (int key){  // Default implementation  switch(key) {  case KEY_UP:    // =======    return REQ_PAD_UP;  case KEY_DOWN:    // =========    return REQ_PAD_DOWN;  case KEY_LEFT:    // =========    return REQ_PAD_LEFT;  case KEY_RIGHT:    // ==========    return REQ_PAD_RIGHT;  case KEY_EXIT:    // =========  case CTRL('X'):    // ==========    return REQ_PAD_EXIT;  default: return(key);  }}void NCursesPad::operator()(void){  NCursesWindow* W = Win();  if ((NCursesWindow*)0 != W) {    int Width  = W->width();    int Height = W->height();    int req = REQ_PAD_REFRESH;    W->keypad(TRUE);    W->meta(TRUE);    refresh();    do {      bool changed = FALSE;      switch (req) {      case REQ_PAD_REFRESH:	// ================	changed = TRUE;	break;      case REQ_PAD_LEFT:	// =============	if (min_col > 0) {	  changed = TRUE;	  if (min_col < h_gridsize)	    min_col = 0;	  else	    min_col -= h_gridsize;	}	else	  OnNavigationError(req);	break;      case REQ_PAD_RIGHT:	// ==============	if (min_col < (width() - Width - 1)) {	  changed = TRUE;	  if (min_col > (width() - Width - h_gridsize - 1))	    min_col = width() - Width - 1;	  else	    min_col += h_gridsize;	}	else	  OnNavigationError(req);	break;      case REQ_PAD_UP:	// ===========	if (min_row > 0) {	  changed = TRUE;	  if (min_row < v_gridsize)	    min_row = 0;	  else	    min_row -= v_gridsize;	}	else	  OnNavigationError(req);	break;      case REQ_PAD_DOWN:	// =============	if (min_row < (height() - Height - 1)) {	  changed = TRUE;	  if (min_row > (height() - Height - v_gridsize - 1))	    min_row = height() - Height - 1;	  else	    min_row += v_gridsize;	}	else	  OnNavigationError(req);	break;      default:	OnUnknownOperation(req);      }      if (changed) {	noutrefresh();	W->syncup();	OnOperation(req);	viewWin->refresh();      }    } while( (req=driver(W->getch())) != REQ_PAD_EXIT );  }}int NCursesPad::refresh(){  int res = noutrefresh();  if (res==OK && ((NCursesWindow*)0 != viewWin)) {    res = (viewWin->refresh());  }  return(res);}int NCursesPad::noutrefresh(){  int res = OK;  NCursesWindow* W = Win();  if ((NCursesWindow*)0 != W) {    res = copywin(*W,min_row,min_col,		  0,0,W->maxy(),W->maxx(),		  FALSE);    if (res==OK) {      W->syncup();      res = viewWin->noutrefresh();    }  }  return (res);}void NCursesPad::setWindow(NCursesWindow& view,			   int v_grid NCURSES_PARAM_INIT(1),			   int h_grid NCURSES_PARAM_INIT(1)){  viewWin = &view;  min_row = min_col = 0;  if (h_grid <=0 || v_grid <= 0)    err_handler("Illegal Gridsize");  else {    h_gridsize = h_grid;    v_gridsize = v_grid;  }}void NCursesPad::setSubWindow(NCursesWindow& sub){  if ((NCursesWindow*)0 == viewWin)    err_handler("Pad has no viewport");  if (!viewWin->isDescendant(sub))    THROW(new NCursesException("NCursesFramePad", E_SYSTEM_ERROR));  viewSub = &sub;}void NCursesFramedPad::OnOperation(int pad_req){  NCursesWindow* W = Win();  NCursesWindow* Win = getWindow();  if (((NCursesWindow*)0 != W) && ((NCursesWindow*)0 != Win)) {    int Width  = W->width();    int Height = W->height();    int i, row, col, h_len, v_len;    h_len = (Width*Width + width() - 1)/width();    if (h_len==0)      h_len = 1;    if (h_len > Width)      h_len = Width;    v_len = (Height*Height + height() - 1)/height();    if (v_len==0)      v_len = 1;    if (v_len > Height)      v_len = Height;    col  = (min_col * Width + width() - 1)  / width();    if (col + h_len > Width)      col = Width - h_len;    row  = (min_row * Height + height() - 1) / height();    if (row + v_len > Height)      row = Height - v_len;    Win->vline(1,Width+1,Height);    Win->attron(A_REVERSE);    if (v_len>=2) {      Win->addch(row+1,Width+1,ACS_UARROW);      for(i=2;i<v_len;i++)	Win->addch(row+i,Width+1,' ');      Win->addch(row+v_len,Width+1,ACS_DARROW);    }    else {      for(i=1;i<=v_len;i++)	Win->addch(row+i,Width+1,' ');    }    Win->attroff(A_REVERSE);    Win->hline(Height+1,1,Width);    Win->attron(A_REVERSE);    if (h_len >= 2) {      Win->addch(Height+1,col+1,ACS_LARROW);      for(i=2;i<h_len;i++)	Win->addch(Height+1,col+i,' ');      Win->addch(Height+1,col+h_len,ACS_RARROW);    }    else {      for(i=1;i<=h_len;i++)	Win->addch(Height+1,col+i,' ');    }    Win->attroff(A_REVERSE);  }}