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annotate src/fios.h @ 9031:9c6b04429f26 draft

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(svn r12848) -Cleanup/Codechange: Use correct variable types, don't prefix with _ for non-globals, and use implicit enum numbering.
author peter1138 <peter1138@openttd.org>
date Wed, 23 Apr 2008 12:03:47 +0000
parents 2495310e220f
children bfbde09b4346
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* $Id$ */
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2
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3 /** @file fios.h Declarations for savegames operations */
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4
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5 #ifndef FIOS_H
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6 #define FIOS_H
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7
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8 #include "strings_type.h"
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9
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10 enum {
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11 /**
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12 * Slot used for the GRF scanning and such. This slot cannot be reused
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13 * as it will otherwise cause issues when pressing "rescan directories".
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14 * It can furthermore not be larger than LAST_GRF_SLOT as that complicates
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15 * the testing for "too much NewGRFs".
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16 */
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17 CONFIG_SLOT = 0,
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18 /** Slot for the sound. */
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19 SOUND_SLOT = 1,
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20 /** First slot useable for (New)GRFs used during the game. */
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21 FIRST_GRF_SLOT = 2,
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22 /** Last slot useable for (New)GRFs used during the game. */
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23 LAST_GRF_SLOT = 63,
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24 /** Maximum number of slots. */
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25 MAX_FILE_SLOTS = 64
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26 };
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27
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28 enum SaveLoadDialogMode{
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29 SLD_LOAD_GAME,
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30 SLD_LOAD_SCENARIO,
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31 SLD_SAVE_GAME,
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32 SLD_SAVE_SCENARIO,
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33 SLD_LOAD_HEIGHTMAP,
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34 SLD_NEW_GAME,
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35 };
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36
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37 /* The different types of files been handled by the system */
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38 enum FileType {
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39 FT_NONE, ///< nothing to do
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40 FT_SAVEGAME, ///< old or new savegame
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41 FT_SCENARIO, ///< old or new scenario
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42 FT_HEIGHTMAP, ///< heightmap file
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43 };
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44
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45 enum FiosType {
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46 FIOS_TYPE_DRIVE,
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47 FIOS_TYPE_PARENT,
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48 FIOS_TYPE_DIR,
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49 FIOS_TYPE_FILE,
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50 FIOS_TYPE_OLDFILE,
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51 FIOS_TYPE_SCENARIO,
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52 FIOS_TYPE_OLD_SCENARIO,
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53 FIOS_TYPE_DIRECT,
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54 FIOS_TYPE_PNG,
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55 FIOS_TYPE_BMP,
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56 FIOS_TYPE_INVALID = 255,
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57 };
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58
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59 /* Deals with finding savegames */
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60 struct FiosItem {
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61 FiosType type;
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62 uint64 mtime;
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63 char title[64];
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64 char name[256 - 12 - 64];
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65 };
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66
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67 /* Deals with the type of the savegame, independent of extension */
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68 struct SmallFiosItem {
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69 int mode; ///< savegame/scenario type (old, new)
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70 FileType filetype; ///< what type of file are we dealing with
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71 char name[MAX_PATH]; ///< name
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72 char title[255]; ///< internal name of the game
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73 };
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74
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75 /* Variables to display file lists */
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76 extern FiosItem *_fios_list; ///< defined in misc_gui.cpp
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77 extern int _fios_num; ///< defined in fios.cpp, read_only version of _fios_count
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78 extern SmallFiosItem _file_to_saveload;
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79 extern SaveLoadDialogMode _saveload_mode; ///< defined in misc_gui.cpp
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80
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81 /* Launch save/load dialog */
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82 void ShowSaveLoadDialog(SaveLoadDialogMode mode);
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83
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84 /* Get a list of savegames */
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85 FiosItem *FiosGetSavegameList(SaveLoadDialogMode mode);
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86 /* Get a list of scenarios */
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87 FiosItem *FiosGetScenarioList(SaveLoadDialogMode mode);
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88 /* Get a list of Heightmaps */
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89 FiosItem *FiosGetHeightmapList(SaveLoadDialogMode mode);
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90 /* Free the list of savegames */
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91 void FiosFreeSavegameList();
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92 /* Browse to. Returns a filename w/path if we reached a file. */
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93 char *FiosBrowseTo(const FiosItem *item);
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94 /* Return path, free space and stringID */
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95 StringID FiosGetDescText(const char **path, uint32 *total_free);
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96 /* Delete a name */
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97 bool FiosDelete(const char *name);
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98 /* Make a filename from a name */
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99 void FiosMakeSavegameName(char *buf, const char *name, size_t size);
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100 /* Allocate a new FiosItem */
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101 FiosItem *FiosAlloc();
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102
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103 int CDECL compare_FiosItems(const void *a, const void *b);
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104
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105 /* Implementation of opendir/readdir/closedir for Windows */
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106 #if defined(WIN32)
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107 #include <windows.h>
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108 struct DIR;
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109
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110 struct dirent { // XXX - only d_name implemented
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111 TCHAR *d_name; // name of found file
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112 /* little hack which will point to parent DIR struct which will
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113 * save us a call to GetFileAttributes if we want information
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114 * about the file (for example in function fio_bla) */
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115 DIR *dir;
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116 };
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117
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118 struct DIR {
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119 HANDLE hFind;
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120 /* the dirent returned by readdir.
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121 * note: having only one global instance is not possible because
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122 * multiple independent opendir/readdir sequences must be supported. */
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123 dirent ent;
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124 WIN32_FIND_DATA fd;
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125 /* since opendir calls FindFirstFile, we need a means of telling the
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126 * first call to readdir that we already have a file.
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127 * that's the case iff this is true */
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128 bool at_first_entry;
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129 };
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130
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131 DIR *opendir(const TCHAR *path);
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132 struct dirent *readdir(DIR *d);
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133 int closedir(DIR *d);
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134 #else
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135 /* Use system-supplied opendir/readdir/closedir functions */
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136 # include <sys/types.h>
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137 # include <dirent.h>
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138 #endif /* defined(WIN32) */
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139
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140 /**
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141 * A wrapper around opendir() which will convert the string from
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142 * OPENTTD encoding to that of the filesystem. For all purposes this
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143 * function behaves the same as the original opendir function
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144 * @param path string to open directory of
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145 * @return DIR pointer
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146 */
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147 static inline DIR *ttd_opendir(const char *path)
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148 {
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149 return opendir(OTTD2FS(path));
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150 }
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151
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152 #endif /* FIOS_H */