-
Notifications
You must be signed in to change notification settings - Fork 0
/
file_scan.v
343 lines (319 loc) · 7.86 KB
/
file_scan.v
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
/**********************************************************************
*
* File scanner
*
* Copyright (c) 2021 Dario Deledda. All rights reserved.
* Use of this source code is governed by an MIT license
* that can be found in the LICENSE file.
*
* TODO:
**********************************************************************/
import os
// STBI supported format
// STBI_NO_JPEG *
// STBI_NO_PNG *
// STBI_NO_BMP *
// STBI_NO_PSD
// STBI_NO_TGA *
// STBI_NO_GIF *
// STBI_NO_HDR *
// STBI_NO_PIC *
// STBI_NO_PNM *
/******************************************************************************
*
* Struct and Enums
*
******************************************************************************/
enum Item_type {
file = 0
folder
// archive format
zip = 16
archive_file
// graphic format, MUST stay after the other types!!
bmp = 32
jpg
png
gif
tga
ppm
pgm
pic
hdr
}
pub
struct Item {
pub mut:
path string
name string
size u64
i_type Item_type = .file
container_index int // used if the item is in a container (.zip, .rar, etc)
container_item_index int // index in the container if the item is contained
need_extract bool // if true need to extraction from the container
drawable bool // if true the image can be showed
n_item int //
rotation int // number of rotation of PI/2
}
struct Item_list {
pub mut:
lst []Item
path_sep string
item_index int = -1 // image currently shown
n_item int // number of images scanned
loaded bool // flag that indicate that the list is ready to be used
}
/******************************************************************************
*
* Utility functions
*
******************************************************************************/
[inline]
fn modulo(x int, n int) int {
return (x % n + n) % n
}
[inline]
fn get_extension(x string) Item_type {
// 4 char extension check
if x.len > 4 {
ext4 := x[x.len-4..].to_lower()
match ext4 {
// containers
'.zip' { return .zip }
// graphic formats
'.jpg' { return .jpg }
'.png' { return .png }
'.bmp' { return .bmp }
'.gif' { return .gif }
'.tga' { return .tga }
'.ppm' { return .ppm }
'.pgm' { return .pgm }
'.pic' { return .pic }
'.hdr' { return .hdr }
else{}
}
}
// 5 char extension check
if x.len > 5 {
ext5 := x[x.len-5..].to_lower()
if ext5 == '.jpeg' {
{ return .jpg }
}
}
return .file
}
[inline]
fn is_image(x Item_type) bool {
if int(x) >= int(Item_type.bmp) {
return true
}
return false
}
[inline]
fn is_container(x Item_type) bool {
if x in [.zip, .folder] {
return true
}
return false
}
[inline]
fn (item_list Item_list ) is_inside_a_container() bool {
if item_list.lst.len <= 0 || item_list.n_item <= 0 {
return false
}
return item_list.lst[item_list.item_index].need_extract
}
[inline]
fn (item_list Item_list ) get_file_path() string {
if item_list.lst.len <= 0 || item_list.n_item <= 0 {
return ""
}
if item_list.lst[item_list.item_index].path.len > 0 {
return "${item_list.lst[item_list.item_index].path}${item_list.path_sep}${item_list.lst[item_list.item_index].name}"
}
return item_list.lst[item_list.item_index].name
}
/******************************************************************************
*
* Scan functions
*
******************************************************************************/
fn (mut item_list Item_list ) scan_folder(path string, in_index int)? {
println("Scanning [$path]")
mut folder_list := []string{}
lst := os.ls(path)?
// manage the single files
for c, x in lst {
pt := "${path}${item_list.path_sep}${x}"
mut item := Item{
path: path
name: x
container_index: in_index
container_item_index: c
}
if os.is_dir(pt) {
folder_list << x
} else {
ext := get_extension(x)
if ext == .zip {
item.i_type = .zip
item_list.lst << item
item_list.scan_zip(pt, item_list.lst.len-1)?
continue
}
if is_image(ext) == true {
item_list.n_item += 1
item.n_item = item_list.n_item
item.i_type = ext
item.drawable = true
item_list.lst << item
continue
}
}
}
// manage the folders
for x in folder_list {
pt := "${path}${item_list.path_sep}${x}"
item := Item{
path: path
name: x
i_type: .folder
}
item_list.lst << item
item_list.scan_folder(pt, item_list.lst.len - 1 )?
}
//println(item_list.lst.len)
//println("==================================")
}
fn (item_list Item_list )print_list() {
println("================================")
for x in item_list.lst {
if x.i_type == .folder {
print("[]")
}
if x.i_type == .zip {
print("[ZIP]")
}
println("${x.path} => ${x.container_index} ${x.container_item_index} ${x.name} ne:${x.need_extract}")
}
println("n_item: ${item_list.n_item} index: ${item_list.item_index}")
println("================================")
}
fn (mut item_list Item_list ) get_items_list(args []string) {
item_list.loaded = false
println("Args: ${args}")
item_list.path_sep = $if windows { '\\' } $else { '/' }
for x in args {
// scan folder
if os.is_dir(x) {
mut item := Item{
path: x
name: x
container_index: item_list.lst.len
i_type: .folder
}
item_list.lst << item
item_list.scan_folder(x, item_list.lst.len - 1) or {
eprintln("ERROR: scanning folder [$x]!")
continue
}
} else {
mut item := Item{
path: ""
name: x
container_index: -1
}
ext := get_extension(x)
// scan .zip
if ext == .zip {
item.i_type = .zip
item_list.lst << item
item_list.scan_zip(x, item_list.lst.len-1) or {
eprintln("ERROR: scanning zip [$x]!")
continue
}
continue
}
// single images
if is_image(ext) == true {
item_list.n_item += 1
item.n_item = item_list.n_item
item.i_type = ext
item.drawable = true
item_list.lst << item
continue
}
}
}
// debug call for list all the loaded items
//item_list.print_list()
println("Items: ${item_list.n_item}")
println("Scanning done.")
item_list.get_next_item(1)
item_list.loaded = true
}
/******************************************************************************
*
* Navigation functions
*
******************************************************************************/
fn (mut item_list Item_list ) get_next_item(in_inc int) {
// if empty exit
if item_list.lst.len <= 0 || item_list.n_item <= 0 {
return
}
inc := if in_inc > 0 {1} else {-1}
mut i := item_list.item_index + in_inc
i = modulo(i, item_list.lst.len)
start := i
for {
if item_list.lst[i].drawable == true {
item_list.item_index = i
break
}
i = i + inc
i = modulo(i, item_list.lst.len)
// if we are in a loop break it
if i == start {
break
}
}
//println("Found: ${item_list.item_index}")
}
fn (mut item_list Item_list ) go_to_next_container(in_inc int) {
// if empty exit
if item_list.lst.len <= 0 || item_list.n_item <= 0 {
return
}
inc := if in_inc > 0 {1} else {-1}
mut i := item_list.item_index + in_inc
i = modulo(i, item_list.lst.len)
start := i
for {
// check if we found a folder
if is_container(item_list.lst[i].i_type) == true && i != item_list.lst[item_list.item_index].container_index {
item_list.item_index = i
item_list.get_next_item(1)
break
}
// continue to search
i = i + inc
i = modulo(i, item_list.lst.len)
// if we are in a loop break it
if i == start {
break
}
}
}
/******************************************************************************
*
* Other functions
*
******************************************************************************/
[inline]
fn (mut item_list Item_list ) rotate(in_inc int) {
item_list.lst[item_list.item_index].rotation += in_inc
if item_list.lst[item_list.item_index].rotation >= 4 {
item_list.lst[item_list.item_index].rotation = 0
}
}