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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
* Smithsonian Astrophysical Observatory, Cambridge, MA, USA
* This code has been modified under the terms listed below and is made
* available under the same terms.
*/
/*
* Copyright 1993-2004 George A Howlett.
*
* 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, 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 AUTHORS OR 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.
*/
#ifndef _BLT_GR_MARKER_POLYGON_H
#define _BLT_GR_MARKER_POLYGON_H
#include "bltGrMarker.h"
class PolygonMarker {
public:
GraphObj obj; /* Must be first field in marker. */
MarkerClass *classPtr;
Tk_OptionTable optionTable; /* Configuration specifications */
Tcl_HashEntry *hashPtr;
Blt_ChainLink link;
const char* elemName; /* Element associated with marker. Let's
* you link a marker to an element. The
* marker is drawn only if the element
* is also visible. */
Axis2d axes;
Point2d *worldPts; /* Coordinate array to position
* marker. */
int nWorldPts; /* Number of points in above array */
int drawUnder; /* If non-zero, draw the marker
* underneath any elements. This can be
* a performance penalty because the
* graph must be redraw entirely each
* time the marker is redrawn. */
int clipped; /* Indicates if the marker is totally
* clipped by the plotting area. */
int hide;
unsigned int flags;
int xOffset, yOffset; /* Pixel offset from graph position */
int state;
// derived
Point2d *screenPts; /* Array of points representing the
* polygon in screen coordinates. It's
* not used for drawing, but to generate
* the outlinePts and fillPts arrays
* that are the coordinates of the
* possibly clipped outline and filled
* polygon. */
XColor* outline;
XColor* outlineBg;
XColor* fill;
XColor* fillBg;
Pixmap stipple; /* Stipple pattern to fill the
* polygon. */
int lineWidth; /* Width of polygon outline. */
int capStyle;
int joinStyle;
Blt_Dashes dashes; /* List of dash values. Indicates how
* to draw the dashed line. If no dash
* values are provided, or the first
* value is zero, then the line is drawn
* solid. */
GC outlineGC; /* Graphics context to draw the outline
* of the polygon. */
GC fillGC; /* Graphics context to draw the filled
* polygon. */
Point2d *fillPts; /* Malloc'ed array of points used to
* draw the filled polygon. These points
* may form a degenerate polygon after
* clipping. */
int nFillPts; /* # points in the above array. */
Segment2d *outlinePts; /* Malloc'ed array of points.
* Represents individual line segments
* (2 points per segment) comprising the
* outline of the polygon. The segments
* may not necessarily be closed or
* connected after clipping. */
int nOutlinePts; /* # points in the above array. */
int xorr;
int xorState; /* State of the XOR drawing. Indicates
* if the marker is visible. We have to
* drawn it again to erase it. */
};
#endif
|
