1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* 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
* http://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)
typedef struct Display Display;
typedef struct Viewport Viewport;
typedef struct Window Window;
typedef struct Canvas Canvas;
struct Canvas {
Canvas *c_next; /* next canvas on display */
Display *c_display; /* back pointer to display */
Canvas *c_slnext; /* next canvas in display slice */
Canvas *c_slprev; /* prev canvas in display slice */
Canvas *c_slperp; /* perpendicular slice */
Canvas *c_slback; /* perpendicular slice back pointer */
int c_slorient; /* our slice orientation */
int c_slweight; /* size ratio */
Viewport *c_vplist;
Layer *c_layer; /* layer on this canvas */
Canvas *c_lnext; /* next canvas that displays layer */
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;
Event c_captev; /* caption changed event */
};
void SetCanvasWindow (Canvas *, Window *);
void SetForeCanvas (Display *, Canvas *);
Canvas *FindCanvas (int, int);
int MakeDefaultCanvas (void);
int AddCanvas (int);
void RemCanvas (void);
void OneCanvas (void);
void FreeCanvas (Canvas *);
int CountCanvas (Canvas *);
void ResizeCanvas (Canvas *);
void RecreateCanvasChain (void);
void RethinkViewportOffsets (Canvas *);
int CountCanvasPerp (Canvas *);
void EqualizeCanvas (Canvas *, int);
void DupLayoutCv (Canvas *, Canvas *, int);
void PutWindowCv (Canvas *);
#define CV_CALL(cv, cmd) \
{ \
Display *olddisplay = display; \
Layer *oldflayer = flayer; \
Layer *l = cv->c_layer; \
Canvas *cvlist = l->l_cvlist; \
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 */
|