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1 | /* Copyright (c) 2006 by Arkkra Enterprises */ |
2 | /* All rights reserved */ | |
3 | ||
4 | #ifndef _UTILS_H_ | |
5 | #define _UTILS_H_ | |
6 | ||
7 | // This file defines miscellaneous things that don't seem to really | |
8 | // belong with any particular menu. | |
9 | ||
10 | #include <FL/Fl.H> | |
11 | #include <FL/Fl_Int_Input.H> | |
12 | ||
13 | #ifdef OS_LIKE_WIN32 | |
14 | // For some reason mingw doesn't seem to properly define va_list anywhere. | |
15 | // I guess it needs a compiler-specific header file. | |
16 | // We don't actually use any functions that use va_list, | |
17 | // so just need to try to keep the compiler happy. | |
18 | #ifndef va_list | |
19 | #define va_list __VALIST | |
20 | #endif | |
21 | #endif | |
22 | ||
23 | // The FLTK Fl_Int_Input is almost what we want, but it allows | |
24 | // octal and hex input via leading 0 and 0x respectively. | |
25 | // So the Int_Input derived class intercepts the input and throws away | |
26 | // characters from the set [xX] and leading zeros. | |
27 | // Sometimes we also want to restrict to positive numbers, | |
28 | // so the Positive_Int_Input class discards the - character as well. | |
29 | ||
30 | class Int_Input : public Fl_Int_Input { | |
31 | public: | |
32 | Int_Input(int x, int y, int w, int h, const char * label); | |
33 | int handle(int event); | |
34 | protected: | |
35 | bool allow_negative; | |
36 | }; | |
37 | ||
38 | class Positive_Int_Input : public Int_Input { | |
39 | public: | |
40 | Positive_Int_Input(int x, int y, int w, int h, const char * label); | |
41 | }; | |
42 | ||
43 | ||
44 | // Return the native OS's directory separator character | |
45 | char dir_separator(void); | |
46 | // Return the native OS's path separator character | |
47 | char path_separator(void); | |
48 | ||
49 | // Set the $MUPPATH value | |
50 | extern void set_muppath(const char * new_muppath); | |
51 | ||
52 | // Get value of PATH from third argument to main(), or failing that, | |
53 | // from getenv(), and save it. | |
54 | extern void get_path(const char ** const env_p); | |
55 | ||
56 | // Return true if given path is an absoluate path | |
57 | extern bool is_absolute(const char * const path); | |
58 | ||
59 | // Find full path to an executable. | |
60 | // If found, true is returned and full path is filled into location, | |
61 | // which must be at least FL_PATH_MAX bytes long. | |
62 | // If executable is not found, false is returned, and the contents of | |
63 | // location is not defined. | |
64 | extern bool find_executable(const char * const pgm_name, char * location); | |
65 | ||
66 | // Returns path to magic file saying user agrees to license | |
67 | extern const char * magic_file(const char * pname = 0, const char ** env_p = 0); | |
68 | ||
69 | #ifdef OS_LIKE_WIN32 | |
70 | // On Windows, we read the registry to try to determine the proper | |
71 | // program to use for a given file type, like .mid or .ps files. | |
72 | // This function will return the path to the appropriate file, | |
73 | // if found, in a static area that may get overwritten on next call, | |
74 | // so caller needs to make its own copy. If program is not found, | |
75 | // returns null. | |
76 | extern char * lookup_pgm_for_file_suffix(const char * file_suffix); | |
77 | ||
78 | // Look for likely default directory for Mup files. | |
79 | // Use the current user's "My Music" place if there is one, | |
80 | // otherwise try their "My Documents" folder. | |
81 | // Returns path in static area or null on failure. | |
82 | extern char * find_music_folder(void); | |
83 | ||
84 | #endif | |
85 | ||
86 | #endif |