diff options
Diffstat (limited to 'ncurses-5.3/c++/cursespad.cc')
| -rw-r--r-- | ncurses-5.3/c++/cursespad.cc | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/ncurses-5.3/c++/cursespad.cc b/ncurses-5.3/c++/cursespad.cc new file mode 100644 index 0000000..5e9c248 --- /dev/null +++ b/ncurses-5.3/c++/cursespad.cc @@ -0,0 +1,276 @@ +// * this is for making emacs happy: -*-Mode: C++;-*- +/**************************************************************************** + * Copyright (c) 1998-2001,2002 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 * + * Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en * + ****************************************************************************/ + +#include "internal.h" +#include "etip.h" +#include "cursesw.h" + +MODULE_ID("$Id$") + +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 = ⊂ +} + +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); + } +} |