+// * this is for making emacs happy: -*-Mode: C++;-*-
+/****************************************************************************
+ * Copyright (c) 1999 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 <juergen.pfeifer@gmx.net> 1999 *
+ ****************************************************************************/
+
+#include "etip.h"
+#include "cursesw.h"
+#include "internal.h"
+
+MODULE_ID("$Id: cursespad.cc,v 1.2 1999/09/11 23:25:54 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 = ⊂
+}
+
+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);
+ }
+}
projects / ncurses.git / blobdiff