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1 | /* |
2 | * dselect - Debian package maintenance user interface | |
3 | * dselect.h - external definitions for this program | |
4 | * | |
5 | * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk> | |
6 | * Copyright © 2001 Wichert Akkerman <wakkerma@debian.org> | |
7 | * | |
8 | * This is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
20 | */ | |
21 | ||
22 | #ifndef DSELECT_H | |
23 | #define DSELECT_H | |
24 | ||
25 | #include <signal.h> | |
26 | ||
27 | #include <algorithm> | |
28 | ||
29 | using std::min; | |
30 | using std::max; | |
31 | ||
32 | #include <dpkg/debug.h> | |
33 | ||
34 | #include "dselect-curses.h" | |
35 | ||
36 | #define DSELECT "dselect" | |
37 | ||
38 | #define TOTAL_LIST_WIDTH 180 | |
39 | #define MAX_DISPLAY_INFO 120 | |
40 | ||
41 | struct helpmenuentry { | |
42 | char key; | |
43 | const struct helpmessage *msg; | |
44 | }; | |
45 | ||
46 | struct keybindings; | |
47 | ||
48 | enum screenparts { | |
49 | background, | |
50 | list, | |
51 | listsel, | |
52 | title, | |
53 | thisstate, | |
54 | selstate, | |
55 | selstatesel, | |
56 | colheads, | |
57 | query, | |
58 | info_body, | |
59 | info_head, | |
60 | whatinfo, | |
61 | helpscreen, | |
62 | numscreenparts, | |
63 | }; | |
64 | ||
65 | struct column { | |
66 | column(): title(nullptr), x(0), width(0) {}; | |
67 | void blank() { title = nullptr; x = 0; width = 0; }; | |
68 | ||
69 | const char *title; | |
70 | int x; | |
71 | int width; | |
72 | }; | |
73 | ||
74 | class baselist { | |
75 | protected: | |
76 | // Screen dimensions &c. | |
77 | int xmax, ymax; | |
78 | int title_height, colheads_height, list_height; | |
79 | int thisstate_height, info_height, whatinfo_height; | |
80 | int colheads_row, thisstate_row, info_row, whatinfo_row, list_row; | |
81 | ||
82 | int part_attr[numscreenparts]; | |
83 | ||
84 | int gap_width; | |
85 | int col_cur_x; | |
86 | int total_width; | |
87 | ||
88 | void add_column(column &col, const char *title, int width); | |
89 | void end_column(column &col, const char *title); | |
90 | void draw_column_head(column &col); | |
91 | void draw_column_sep(column &col, int y); | |
92 | void draw_column_item(column &col, int y, const char *item); | |
93 | ||
94 | // (n)curses stuff | |
95 | WINDOW *listpad, *infopad, *colheadspad, *thisstatepad; | |
96 | WINDOW *titlewin, *whatinfowin, *querywin; | |
97 | // If listpad is null, then we have not started to display yet, and | |
98 | // so none of the auto-displaying update routines need to display. | |
99 | ||
100 | // SIGWINCH handling | |
101 | void sigwinch_mask(int how); | |
102 | void setupsigwinch(); | |
103 | ||
104 | static baselist *signallist; | |
105 | static void sigwinchhandler(int); | |
106 | ||
107 | int nitems, ldrawnstart, ldrawnend, showinfo; | |
108 | int topofscreen, leftofscreen, cursorline; | |
109 | int infotopofscreen, infolines; | |
110 | varbuf whatinfovb; | |
111 | char searchstring[128]; | |
112 | ||
113 | virtual void setheights(); | |
114 | void unsizes(); | |
115 | void dosearch(); | |
116 | void displayhelp(const struct helpmenuentry *menu, int key); | |
117 | void displayerror(const char *str); | |
118 | ||
119 | void redrawall(); | |
120 | void redrawitemsrange(int start /*inclusive*/, int end /*exclusive*/); | |
121 | void redraw1item(int index); | |
122 | void refreshlist(); | |
123 | void refreshinfo(); | |
124 | void refreshcolheads(); | |
125 | void setcursor(int index); | |
126 | ||
127 | void itd_keys(); | |
128 | ||
129 | virtual void redraw1itemsel(int index, int selected) =0; | |
130 | virtual void redrawcolheads() =0; | |
131 | virtual void redrawthisstate() =0; | |
132 | virtual void redrawinfo() =0; | |
133 | virtual void redrawtitle() =0; | |
134 | virtual void setwidths() =0; | |
135 | virtual const char *itemname(int index) =0; | |
136 | virtual const struct helpmenuentry *helpmenulist() =0; | |
137 | ||
138 | virtual bool checksearch(char *str); | |
139 | virtual bool matchsearch(int index); | |
140 | void wordwrapinfo(int offset, const char *string); | |
141 | ||
142 | public: | |
143 | ||
144 | keybindings *bindings; | |
145 | ||
146 | void kd_up(); | |
147 | void kd_down(); | |
148 | void kd_redraw(); | |
149 | void kd_scrollon(); | |
150 | void kd_scrollback(); | |
151 | void kd_scrollon1(); | |
152 | void kd_scrollback1(); | |
153 | void kd_panon(); | |
154 | void kd_panback(); | |
155 | void kd_panon1(); | |
156 | void kd_panback1(); | |
157 | void kd_top(); | |
158 | void kd_bottom(); | |
159 | void kd_iscrollon(); | |
160 | void kd_iscrollback(); | |
161 | void kd_iscrollon1(); | |
162 | void kd_iscrollback1(); | |
163 | void kd_search(); | |
164 | void kd_searchagain(); | |
165 | void kd_help(); | |
166 | ||
167 | void startdisplay(); | |
168 | void enddisplay(); | |
169 | ||
170 | baselist(keybindings *); | |
171 | virtual ~baselist(); | |
172 | }; | |
173 | ||
174 | void displayhelp(const struct helpmenuentry *menu, int key); | |
175 | ||
176 | void mywerase(WINDOW *win); | |
177 | ||
178 | void curseson(); | |
179 | void cursesoff(); | |
180 | ||
181 | extern bool expertmode; | |
182 | ||
183 | struct colordata { | |
184 | int fore; | |
185 | int back; | |
186 | int attr; | |
187 | }; | |
188 | extern colordata color[]; | |
189 | ||
190 | /* Evil recommends flag variable. */ | |
191 | extern bool manual_install; | |
192 | ||
193 | enum urqresult { urqr_normal, urqr_fail, urqr_quitmenu }; | |
194 | enum quitaction { qa_noquit, qa_quitchecksave, qa_quitnochecksave }; | |
195 | ||
196 | typedef urqresult urqfunction(void); | |
197 | urqfunction urq_list, urq_quit, urq_menu; | |
198 | urqfunction urq_setup, urq_update, urq_install, urq_config, urq_remove; | |
199 | ||
200 | #endif /* DSELECT_H */ |