git.mutantstargoat.com Git - vrfileman/blob - src/fs.cc

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <errno.h>
   5 #include <string>
   6 #include <map>
   7 #include <algorithm>
   8 #include <unistd.h>
   9 #include <dirent.h>
  10 #include <sys/stat.h>
  11 #include "fs.h"
  12 #include "icon.h"
  13 #include "gmath/gmath.h"
  14 #include "opengl.h"
  15 #include "app.h"
  16 #include "drawtext.h"
  17 #include "sdr.h"
  18
  19 static void draw_node_name(FSNode *node, float angle, float ypos, float dist, bool full);
  20
  21 static IconRenderer *iconrend;
  22
  23 static std::map<std::string, FSNode*> node_cache;
  24 static FSNode *cur_node;
  25 static int start_child;
  26
  27 static dtx_font *fat_font;
  28 #define FAT_FONT_SZ     32
  29 static unsigned int glow_link_sdr;
  30 static unsigned int chrome_font_sdr, glow_font_sdr;
  31
  32
  33 bool init_fs(const char *path)
  34 {
  35         iconrend = new ShapesIcons;
  36         if(!iconrend->init()) {
  37                 return false;
  38         }
  39
  40         if(!(fat_font = dtx_open_font_glyphmap("data/fat.glyphmap")) ||
  41                         dtx_get_glyphmap_ptsize(dtx_get_glyphmap(fat_font, 0)) != FAT_FONT_SZ) {
  42
  43                 dtx_set(DTX_PADDING, 64);
  44
  45                 if(!(fat_font = dtx_open_font("data/fat.font", 0))) {
  46                         fprintf(stderr, "failed to open font file data/fat.font\n");
  47                         return false;
  48                 }
  49                 dtx_prepare_range(fat_font, FAT_FONT_SZ * 8, 32, 127);
  50                 dtx_calc_font_distfield(fat_font, 1, 8);
  51                 dtx_save_glyphmap("data/fat.glyphmap", dtx_get_glyphmap(fat_font, 0));
  52         }
  53         dtx_use_font(fat_font, FAT_FONT_SZ);
  54
  55         struct dtx_glyphmap *fat_gmap = dtx_get_glyphmap(fat_font, 0);
  56         Vec2 pixsz;
  57         pixsz.x = 1.0 / dtx_get_glyphmap_width(fat_gmap);
  58         pixsz.y = 1.0 / dtx_get_glyphmap_height(fat_gmap);
  59
  60         if(!(chrome_font_sdr = create_program_load("sdr/chrome_font.v.glsl", "sdr/chrome_font.p.glsl"))) {
  61                 return false;
  62         }
  63         set_uniform_float(chrome_font_sdr, "height", dtx_line_height());
  64         set_uniform_float(chrome_font_sdr, "smoothness", 0.01);
  65         set_uniform_float2(chrome_font_sdr, "pix_sz", pixsz.x, pixsz.y);
  66
  67         if(!(glow_font_sdr = create_program_load("sdr/dfont.v.glsl", "sdr/glow_font.p.glsl"))) {
  68                 return false;
  69         }
  70         set_uniform_float(glow_font_sdr, "smoothness", 0.01);
  71         set_uniform_float2(glow_font_sdr, "pix_sz", pixsz.x, pixsz.y);
  72
  73         if(!(glow_link_sdr = create_program_load("sdr/glink.v.glsl", "sdr/glink.p.glsl"))) {
  74                 return false;
  75         }
  76
  77         if(!(cur_node = get_fsnode(path))) {
  78                 return false;
  79         }
  80         cur_node->expand();
  81         return true;
  82 }
  83
  84 void cleanup_fs()
  85 {
  86         std::map<std::string, FSNode*>::iterator it = node_cache.begin();
  87         while(it != node_cache.end()) {
  88                 FSNode *node = it++->second;
  89                 delete node;
  90         }
  91         node_cache.clear();
  92         dtx_close_font(fat_font);
  93         delete iconrend;
  94 }
  95
  96 static float icon_angle(int col, int ncols, float max_angle = 0.0f)
  97 {
  98         if(max_angle > 0) {
  99                 return max_angle * ((float)col / (float)(ncols - 1) - 0.5);
 100         }
 101         return 2.0 * M_PI * (float)col / (float)ncols;
 102 }
 103
 104 void draw_fs()
 105 {
 106         static const float row_spacing = 0.25;
 107         static const float radius = 0.6;
 108         static const float umax = 0.42;
 109         static const float max_icon_angle = M_PI * 2.0 * umax;
 110
 111         int max_ncols = std::max<int>(1, umax * 12);
 112
 113         glPushMatrix();
 114         glTranslatef(0, cam_height, 0);
 115
 116         Mat4 rot_xform;
 117         rot_xform.rotate(time_sec, 0, 0);
 118         rot_xform.rotate(0, 0, time_sec * 0.5);
 119
 120         glDisable(GL_TEXTURE_2D);
 121         glEnable(GL_BLEND);
 122         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 123
 124         int nchildren = (int)cur_node->children.size();
 125         int ncols = std::min(cur_node->nfiles, max_ncols);
 126
 127         int first = start_child % ncols;
 128         int col = 0, row = 0;
 129         int num_dirs = 0;
 130
 131         // count directories ...
 132         for(int i=0; i<nchildren; i++) {
 133                 FSNode *node = cur_node->children[i];
 134                 if(node->type == FSTYPE_DIR) {
 135                         ++num_dirs;
 136                 }
 137         }
 138
 139         // draw the directory link lines
 140         glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 141
 142         for(int i=0; i<nchildren; i++) {
 143                 FSNode *node = cur_node->children[i];
 144
 145                 if(node->type != FSTYPE_DIR) {
 146                         continue;
 147                 }
 148
 149                 float angle = (float)col++ / (float)(num_dirs - 1) * max_icon_angle - max_icon_angle * 0.5;
 150
 151                 Mat4 xform;
 152                 xform.rotate_y(angle);
 153                 xform.translate(0, -0.3, 0);
 154
 155                 glUseProgram(glow_link_sdr);
 156                 glPushMatrix();
 157                 glMultMatrixf(xform[0]);
 158                 glDepthMask(0);
 159
 160                 glBegin(GL_QUADS);
 161                 glColor3f(0.2, 0.3, 0.8);
 162                 glTexCoord2f(0, 0);
 163                 glVertex3f(-0.25, 0, 0.05);
 164                 glTexCoord2f(1, 0);
 165                 glVertex3f(0.25, 0, 0.05);
 166                 glTexCoord2f(1, 1);
 167                 glVertex3f(0.25, 0, -2.0);
 168                 glTexCoord2f(0, 1);
 169                 glVertex3f(-0.25, 0, -2.0);
 170                 glColor3f(1, 1, 1);
 171                 glEnd();
 172                 glPopMatrix();
 173
 174                 glDepthMask(1);
 175         }
 176
 177         // draw the directory labels
 178         glUseProgram(glow_font_sdr);
 179         col = 0;
 180         for(int i=0; i<nchildren; i++) {
 181                 FSNode *node = cur_node->children[i];
 182
 183                 if(node->type != FSTYPE_DIR) {
 184                         continue;
 185                 }
 186
 187                 float angle = (float)col++ / (float)(num_dirs - 1) * max_icon_angle - max_icon_angle * 0.5;
 188
 189                 draw_node_name(node, angle, -0.3, radius, false);
 190         }
 191
 192         // then draw file icons
 193         glDisable(GL_BLEND);
 194         glUseProgram(0);
 195         col = 0;
 196         for(int i=0; i<nchildren; i++) {
 197                 int idx = (i + first) % nchildren;
 198                 FSNode *node = cur_node->children[idx];
 199
 200                 if(node->type == FSTYPE_DIR) {
 201                         ++num_dirs;
 202                         continue;
 203                 }
 204
 205                 float angle = icon_angle(col, ncols, max_icon_angle);
 206
 207                 Mat4 xform = rot_xform;
 208                 xform.translate(0, row * row_spacing, -radius);
 209                 xform.rotate_y(angle);
 210
 211                 glPushMatrix();
 212                 glMultMatrixf(xform[0]);
 213                 iconrend->draw(node);
 214                 glPopMatrix();
 215
 216                 if(++col >= ncols) {
 217                         col = 0;
 218                         ++row;
 219                 }
 220         }
 221
 222         // then draw the file labels
 223         glUseProgram(chrome_font_sdr);
 224         col = 0;
 225         row = 0;
 226         for(int i=0; i<nchildren; i++) {
 227                 int idx = (i + first) % nchildren;
 228                 FSNode *node = cur_node->children[idx];
 229
 230                 if(node->type == FSTYPE_DIR) {
 231                         ++num_dirs;
 232                         continue;
 233                 }
 234
 235                 float angle = icon_angle(col, ncols, max_icon_angle);
 236
 237                 draw_node_name(node, angle, row * row_spacing - 0.1, radius, false);
 238
 239                 if(++col >= ncols) {
 240                         col = 0;
 241                         ++row;
 242                 }
 243         }
 244
 245         glPopMatrix();
 246 }
 247
 248 static void draw_node_name(FSNode *node, float angle, float ypos, float dist, bool full)
 249 {
 250         dtx_use_font(fat_font, FAT_FONT_SZ);
 251         int line_height = dtx_line_height();
 252
 253         int nlines = full ? node->name_lines.size() : 1;
 254         for(int i=0; i<nlines; i++) {
 255                 const char *name = full ? node->name_lines[i].c_str() : node->short_name.c_str();
 256                 glPushMatrix();
 257                 Mat4 xform;
 258                 xform.translate(-dtx_string_width(name) / 2.0, -line_height * i, 0);
 259                 if(node->type == FSTYPE_DIR) {
 260                         xform.rotate_z(deg_to_rad(90));
 261                         xform.rotate_x(deg_to_rad(-90));
 262                         xform.scale(0.0017);
 263                 } else {
 264                         xform.scale(0.0012);
 265                 }
 266                 xform.translate(0, ypos, -dist);
 267                 xform.rotate_y(angle);
 268                 glMultMatrixf(xform[0]);
 269
 270                 dtx_string(name);
 271                 glPopMatrix();
 272         }
 273 }
 274
 275 #define MAX_NAME_SZ     16
 276
 277 FSNode *get_fsnode(const char *path)
 278 {
 279         char *abspath = make_abs_path(path);
 280
 281         FSNode *node = node_cache[abspath];
 282         if(!node) {
 283                 node = new FSNode;
 284                 node->path = path;
 285
 286                 const char *name = node->path.get_name();
 287                 if(name) {
 288                         const char *ptr = name;
 289                         while(*ptr) {
 290                                 if(ptr - name >= MAX_NAME_SZ) {
 291                                         int len = ptr - name;
 292                                         std::string s = std::string(name, len);
 293                                         if(node->short_name.empty()) {
 294                                                 node->short_name = s;
 295                                                 node->short_name[len - 1] = node->short_name[len - 2] = '.';
 296                                         }
 297                                         node->name_lines.push_back(s);
 298                                         name = ptr;
 299                                 }
 300                                 ++ptr;
 301                         }
 302                         if(*name) {
 303                                 if(node->short_name.empty()) {
 304                                         node->short_name = name;
 305                                 }
 306                                 node->name_lines.push_back(name);
 307                         }
 308                 }
 309
 310                 struct stat st;
 311                 if(stat(node->path, &st) == -1) {
 312                         fprintf(stderr, "failed to stat: %s\n", node->path.get_path());
 313                         delete node;
 314                         return 0;
 315                 }
 316                 node->size = st.st_size;
 317
 318                 switch(st.st_mode & S_IFMT) {
 319                 case S_IFREG:
 320                         node->type = FSTYPE_FILE;
 321                         break;
 322
 323                 case S_IFDIR:
 324                         node->type = FSTYPE_DIR;
 325                         break;
 326
 327                 case S_IFBLK:
 328                 case S_IFCHR:
 329                         node->type = FSTYPE_DEV;
 330                         break;
 331
 332                 default:
 333                         node->type = FSTYPE_UNKNOWN;
 334                 }
 335                 node_cache[abspath] = node;
 336         }
 337
 338         return node;
 339 }
 340
 341 FSNode *get_fsnode(const char *dir, const char *name)
 342 {
 343         if(!dir) {
 344                 return get_fsnode(name);
 345         }
 346         if(!name || *name == '/') {
 347                 return 0;
 348         }
 349
 350         int len = strlen(dir) + 1 + strlen(name);
 351         char *buf = new char[len + 1];
 352         sprintf(buf, "%s/%s", dir, name);
 353         FSNode *res = get_fsnode(buf);
 354         delete [] buf;
 355         return res;
 356 }
 357
 358 // ---- FSNode implementation ----
 359 FSNode::FSNode()
 360 {
 361         type = FSTYPE_UNKNOWN;
 362         size = 0;
 363         parent = 0;
 364         nfiles = ndirs = 0;
 365 }
 366
 367 bool FSNode::expand()
 368 {
 369         if(type != FSTYPE_DIR) {
 370                 return false;
 371         }
 372
 373         DIR *dir = opendir(path);
 374         if(!dir) {
 375                 fprintf(stderr, "failed to open dir: %s: %s\n", path.get_path(), strerror(errno));
 376                 return false;
 377         }
 378
 379         struct dirent *dent;
 380         while((dent = readdir(dir))) {
 381                 if(strcmp(dent->d_name, ".") == 0 || strcmp(dent->d_name, "..") == 0) {
 382                         continue;
 383                 }
 384
 385                 FSNode *node = get_fsnode(path, dent->d_name);
 386                 if(!node) continue;
 387
 388                 children.push_back(node);
 389                 switch(node->type) {
 390                 case FSTYPE_FILE:
 391                         ++nfiles;
 392                         break;
 393                 case FSTYPE_DIR:
 394                         ++ndirs;
 395                 default:
 396                         break;
 397                 }
 398         }
 399         printf("expanded %d children\n", (int)children.size());
 400
 401         parent = get_fsnode(path.get_parent());
 402         return true;
 403 }