The Perl and Raku Conference 2025: Greenville, South Carolina - June 27-29 Learn more

VKON / TVision-0.22 / tvision.git / source / tvision / tmenubox.cpp 

            

              
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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149

              
/*------------------------------------------------------------*/
/* filename -       tmenubox.cpp                              */
/*                                                            */
/* function(s)                                                */
/*                  TMenuBox member functions                 */
/*------------------------------------------------------------*/
/*
 *      Turbo Vision - Version 2.0
 *
 *      Copyright (c) 1994 by Borland International
 *      All Rights Reserved.
 *
 */
#define Uses_TRect
#define Uses_TMenu
#define Uses_TMenuItem
#define Uses_TMenuBox
#include <tvision/tv.h>
#if !defined( __STRING_H )
#include <string.h>
#endif  // __STRING_H
static TRect getRect( const TRect& bounds, TMenu *aMenu )
{
    short w =  10;
    short h =  2;
    if( aMenu != 0 )
        {
        for( TMenuItem *p = aMenu->items; p != 0; p = p->next )
            {
            if( p->name != 0 )
                {
                short l = cstrlen(p->name) + 6;
                if( p->command == 0 )
                    l += 3;
                else
                    if( p->param != 0 )
                        l += cstrlen(p->param) + 2;
                w = max( l, w );
                }
            h++;
            }
        }
    TRect r( bounds );
    if( r.a.x + w < r.b.x )
        r.b.x = r.a.x + w;
    else
        r.a.x = r.b.x - w;
    if (r.a.y + h < r.b.y)
        r.b.y = r.a.y + h;
    else
        r.a.y = r.b.y - h;
    return r;
}
TMenuBox::TMenuBox( const TRect& bounds,
                    TMenu *aMenu,
                    TMenuView *aParentMenu ) noexcept :
    TMenuView( getRect( bounds, aMenu ), aMenu, aParentMenu )
{
    state |= sfShadow;
    options |= ofPreProcess;
}
static thread_local TAttrPair cNormal, color;
void TMenuBox::frameLine( TDrawBuffer& b, short n )
{
    b.moveBuf( 0, &frameChars[n], cNormal, 2 );
    b.moveChar( 2, frameChars[n+2], color, size.x - 4 );
    b.moveBuf( size.x-2, &frameChars[n+3], cNormal, 2 );
}
void TMenuBox::draw()
{
    TDrawBuffer    b;
    cNormal = getColor(0x0301);
    TAttrPair cSelect = getColor(0x0604);
    TAttrPair cNormDisabled = getColor(0x0202);
    TAttrPair cSelDisabled = getColor(0x0505);
    short y = 0;
    color =  cNormal;
    frameLine( b, 0 );
    writeBuf( 0, y++, size.x, 1, b );
    if( menu != 0 )
        {
        for( TMenuItem *p = menu->items; p != 0; p = p->next )
            {
            color = cNormal;
            if( p->name == 0 )
                frameLine( b, 15 );
            else
                {
                if( p->disabled )
                    if( p ==  current )
                        color = cSelDisabled;
                    else
                        color = cNormDisabled;
                else if( p == current )
                    color = cSelect;
                frameLine( b, 10 );
                b.moveCStr( 3, p->name, color );
                if( p->command == 0 )
                    b.putChar( size.x-4, 16 );
                else if( p->param != 0 )
                    b.moveCStr( size.x-3-cstrlen(p->param),
                                p->param,
                                color);
                }
            writeBuf( 0, y++, size.x, 1, b );
            }
        }
    color = cNormal;
    frameLine( b, 5 );
    writeBuf( 0, y, size.x, 1, b );
}
TRect TMenuBox::getItemRect( TMenuItem *item )
{
    short  y = 1;
    TMenuItem *p = menu->items;
    while( p != item )
        {
        y++;
        p =  p->next;
        }
    return TRect( 2, y, size.x-2, y+1 );
}
#if !defined(NO_STREAMABLE)
TStreamable *TMenuBox::build()
{
    return new TMenuBox( streamableInit );
}
TMenuBox::TMenuBox( StreamableInit ) noexcept : TMenuView( streamableInit )
{
}
#endif