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Diffstat (limited to 'canvas.h')
| -rw-r--r-- | canvas.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/canvas.h b/canvas.h new file mode 100644 index 0000000..d918013 --- /dev/null +++ b/canvas.h @@ -0,0 +1,101 @@ +/* Copyright (c) 2008, 2009 + * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) + * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) + * Micah Cowan (micah@cowan.name) + * Sadrul Habib Chowdhury (sadrul@users.sourceforge.net) + * Copyright (c) 1993-2002, 2003, 2005, 2006, 2007 + * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de) + * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de) + * Copyright (c) 1987 Oliver Laumann + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program (see the file COPYING); if not, see + * https://www.gnu.org/licenses/, or contact Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA + * + **************************************************************** + * $Id$ GNU + */ + +#ifndef SCREEN_CANVAS_H +#define SCREEN_CANVAS_H + +#define SLICE_UNKN 0 +#define SLICE_VERT (1 << 0) +#define SLICE_HORI (1 << 1) + +#define SLICE_THIS (1 << 2) /* used in equal test */ +#define SLICE_GLOBAL (1 << 3) + +struct canvas +{ + struct canvas *c_next; /* next canvas on display */ + struct display *c_display; /* back pointer to display */ + + struct canvas *c_slnext; /* next canvas in display slice */ + struct canvas *c_slprev; /* prev canvas in display slice */ + struct canvas *c_slperp; /* perpendicular slice */ + struct canvas *c_slback; /* perpendicular slice back pointer */ + int c_slorient; /* our slice orientation */ + int c_slweight; /* size ratio */ + + struct viewport *c_vplist; + struct layer *c_layer; /* layer on this canvas */ + struct canvas *c_lnext; /* next canvas that displays layer */ + struct layer c_blank; /* bottom layer, always blank */ + int c_xoff; /* canvas x offset on display */ + int c_yoff; /* canvas y offset on display */ + int c_xs; + int c_xe; + int c_ys; + int c_ye; + struct event c_captev; /* caption changed event */ +}; + +struct win; /* forward declaration */ + +extern void SetCanvasWindow __P((struct canvas *, struct win *)); +extern void SetForeCanvas __P((struct display *, struct canvas *)); +extern struct canvas *FindCanvas __P((int, int)); +extern int MakeDefaultCanvas __P((void)); +extern int AddCanvas __P((int)); +extern void RemCanvas __P((void)); +extern void OneCanvas __P((void)); +extern void FreeCanvas __P((struct canvas *)); +extern void ResizeCanvas __P((struct canvas *)); +extern void RecreateCanvasChain __P((void)); +extern void RethinkViewportOffsets __P((struct canvas *)); +extern int CountCanvasPerp __P((struct canvas *)); +extern void EqualizeCanvas __P((struct canvas *, int)); +extern void DupLayoutCv __P((struct canvas *, struct canvas *, int)); +extern void PutWindowCv __P((struct canvas *)); + +#define CV_CALL(cv, cmd) \ +{ \ + struct display *olddisplay = display; \ + struct layer *oldflayer = flayer; \ + struct layer *l = cv->c_layer; \ + struct canvas *cvlist = l->l_cvlist; \ + struct canvas *cvlnext = cv->c_lnext; \ + flayer = l; \ + l->l_cvlist = cv; \ + cv->c_lnext = 0; \ + cmd; \ + flayer = oldflayer; \ + l->l_cvlist = cvlist; \ + cv->c_lnext = cvlnext; \ + display = olddisplay; \ +} + +#endif /* SCREEN_CANVAS_H */ + |