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         glUseProgram(glow_link_sdr);
 141         set_uniform_float(glow_link_sdr, "tsec", time_sec);
 142         glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 143
 144         for(int i=0; i<nchildren; i++) {
 145                 FSNode *node = cur_node->children[i];
 146
 147                 if(node->type != FSTYPE_DIR) {
 148                         continue;
 149                 }
 150
 151                 float angle = (float)col++ / (float)(num_dirs - 1) * max_icon_angle - max_icon_angle * 0.5;
 152
 153                 Mat4 xform;
 154                 xform.rotate_y(angle);
 155                 xform.translate(0, -0.3, 0);
 156
 157                 glPushMatrix();
 158                 glMultMatrixf(xform[0]);
 159                 glDepthMask(0);
 160
 161                 set_uniform_float(glow_link_sdr, "phase", col * 42.0);
 162
 163                 glBegin(GL_QUADS);
 164                 glColor3f(0.2, 0.3, 0.8);
 165                 glTexCoord2f(0, 0);
 166                 glVertex3f(-0.2, 0, 0.05);
 167                 glTexCoord2f(1, 0);
 168                 glVertex3f(0.2, 0, 0.05);
 169                 glTexCoord2f(1, 1);
 170                 glVertex3f(0.2, 0, -5.0);
 171                 glTexCoord2f(0, 1);
 172                 glVertex3f(-0.2, 0, -5.0);
 173                 glColor3f(1, 1, 1);
 174                 glEnd();
 175                 glPopMatrix();
 176
 177                 glDepthMask(1);
 178         }
 179
 180         // draw the directory labels
 181         glUseProgram(glow_font_sdr);
 182         col = 0;
 183         for(int i=0; i<nchildren; i++) {
 184                 FSNode *node = cur_node->children[i];
 185
 186                 if(node->type != FSTYPE_DIR) {
 187                         continue;
 188                 }
 189
 190                 float angle = (float)col++ / (float)(num_dirs - 1) * max_icon_angle - max_icon_angle * 0.5;
 191
 192                 draw_node_name(node, angle, -0.3, radius, false);
 193         }
 194
 195         // then draw file icons
 196         glDisable(GL_BLEND);
 197         glUseProgram(0);
 198         col = 0;
 199         for(int i=0; i<nchildren; i++) {
 200                 int idx = (i + first) % nchildren;
 201                 FSNode *node = cur_node->children[idx];
 202
 203                 if(node->type == FSTYPE_DIR) {
 204                         ++num_dirs;
 205                         continue;
 206                 }
 207
 208                 float angle = icon_angle(col, ncols, max_icon_angle);
 209
 210                 Mat4 xform = rot_xform;
 211                 xform.translate(0, row * row_spacing, -radius);
 212                 xform.rotate_y(angle);
 213
 214                 glPushMatrix();
 215                 glMultMatrixf(xform[0]);
 216                 iconrend->draw(node);
 217                 glPopMatrix();
 218
 219                 if(++col >= ncols) {
 220                         col = 0;
 221                         ++row;
 222                 }
 223         }
 224
 225         // then draw the file labels
 226         glUseProgram(chrome_font_sdr);
 227         col = 0;
 228         row = 0;
 229         for(int i=0; i<nchildren; i++) {
 230                 int idx = (i + first) % nchildren;
 231                 FSNode *node = cur_node->children[idx];
 232
 233                 if(node->type == FSTYPE_DIR) {
 234                         ++num_dirs;
 235                         continue;
 236                 }
 237
 238                 float angle = icon_angle(col, ncols, max_icon_angle);
 239
 240                 draw_node_name(node, angle, row * row_spacing - 0.1, radius, false);
 241
 242                 if(++col >= ncols) {
 243                         col = 0;
 244                         ++row;
 245                 }
 246         }
 247
 248         glPopMatrix();
 249 }
 250
 251 static void draw_node_name(FSNode *node, float angle, float ypos, float dist, bool full)
 252 {
 253         dtx_use_font(fat_font, FAT_FONT_SZ);
 254         int line_height = dtx_line_height();
 255
 256         int nlines = full ? node->name_lines.size() : 1;
 257         for(int i=0; i<nlines; i++) {
 258                 const char *name = full ? node->name_lines[i].c_str() : node->short_name.c_str();
 259                 glPushMatrix();
 260                 Mat4 xform;
 261                 xform.translate(-dtx_string_width(name) / 2.0, -line_height * i, 0);
 262                 if(node->type == FSTYPE_DIR) {
 263                         xform.rotate_z(deg_to_rad(90));
 264                         xform.rotate_x(deg_to_rad(-90));
 265                         xform.scale(0.0017);
 266                 } else {
 267                         xform.scale(0.0012);
 268                 }
 269                 xform.translate(0, ypos, -dist);
 270                 xform.rotate_y(angle);
 271                 glMultMatrixf(xform[0]);
 272
 273                 dtx_string(name);
 274                 glPopMatrix();
 275         }
 276 }
 277
 278 #define MAX_NAME_SZ     16
 279
 280 FSNode *get_fsnode(const char *path)
 281 {
 282         char *abspath = make_abs_path(path);
 283
 284         FSNode *node = node_cache[abspath];
 285         if(!node) {
 286                 node = new FSNode;
 287                 node->path = path;
 288
 289                 const char *name = node->path.get_name();
 290                 if(name) {
 291                         const char *ptr = name;
 292                         while(*ptr) {
 293                                 if(ptr - name >= MAX_NAME_SZ) {
 294                                         int len = ptr - name;
 295                                         std::string s = std::string(name, len);
 296                                         if(node->short_name.empty()) {
 297                                                 node->short_name = s;
 298                                                 node->short_name[len - 1] = node->short_name[len - 2] = '.';
 299                                         }
 300                                         node->name_lines.push_back(s);
 301                                         name = ptr;
 302                                 }
 303                                 ++ptr;
 304                         }
 305                         if(*name) {
 306                                 if(node->short_name.empty()) {
 307                                         node->short_name = name;
 308                                 }
 309                                 node->name_lines.push_back(name);
 310                         }
 311                 }
 312
 313                 struct stat st;
 314                 if(stat(node->path, &st) == -1) {
 315                         fprintf(stderr, "failed to stat: %s\n", node->path.get_path());
 316                         delete node;
 317                         return 0;
 318                 }
 319                 node->size = st.st_size;
 320
 321                 switch(st.st_mode & S_IFMT) {
 322                 case S_IFREG:
 323                         node->type = FSTYPE_FILE;
 324                         break;
 325
 326                 case S_IFDIR:
 327                         node->type = FSTYPE_DIR;
 328                         break;
 329
 330                 case S_IFBLK:
 331                 case S_IFCHR:
 332                         node->type = FSTYPE_DEV;
 333                         break;
 334
 335                 default:
 336                         node->type = FSTYPE_UNKNOWN;
 337                 }
 338                 node_cache[abspath] = node;
 339         }
 340
 341         return node;
 342 }
 343
 344 FSNode *get_fsnode(const char *dir, const char *name)
 345 {
 346         if(!dir) {
 347                 return get_fsnode(name);
 348         }
 349         if(!name || *name == '/') {
 350                 return 0;
 351         }
 352
 353         int len = strlen(dir) + 1 + strlen(name);
 354         char *buf = new char[len + 1];
 355         sprintf(buf, "%s/%s", dir, name);
 356         FSNode *res = get_fsnode(buf);
 357         delete [] buf;
 358         return res;
 359 }
 360
 361 // ---- FSNode implementation ----
 362 FSNode::FSNode()
 363 {
 364         type = FSTYPE_UNKNOWN;
 365         size = 0;
 366         parent = 0;
 367         nfiles = ndirs = 0;
 368 }
 369
 370 bool FSNode::expand()
 371 {
 372         if(type != FSTYPE_DIR) {
 373                 return false;
 374         }
 375
 376         DIR *dir = opendir(path);
 377         if(!dir) {
 378                 fprintf(stderr, "failed to open dir: %s: %s\n", path.get_path(), strerror(errno));
 379                 return false;
 380         }
 381
 382         struct dirent *dent;
 383         while((dent = readdir(dir))) {
 384                 if(strcmp(dent->d_name, ".") == 0 || strcmp(dent->d_name, "..") == 0) {
 385                         continue;
 386                 }
 387
 388                 FSNode *node = get_fsnode(path, dent->d_name);
 389                 if(!node) continue;
 390
 391                 children.push_back(node);
 392                 switch(node->type) {
 393                 case FSTYPE_FILE:
 394                         ++nfiles;
 395                         break;
 396                 case FSTYPE_DIR:
 397                         ++ndirs;
 398                 default:
 399                         break;
 400                 }
 401         }
 402         printf("expanded %d children\n", (int)children.size());
 403
 404         parent = get_fsnode(path.get_parent());
 405         return true;
 406 }