cinelerra-5.1/plugins/svg/svgwin.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "svgwin.h"
  23 #include "filexml.h"
  24 #include "language.h"
  25
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29 #include <sys/types.h>
  30 #include <fcntl.h>
  31 #include <sys/stat.h>
  32 #include <errno.h>
  33
  34 #include "empty_svg.h"
  35
  36 struct fifo_struct {
  37         int pid;
  38 // 1 = update from client, 2 = client closes, 3 = quit
  39         int action;
  40 };
  41
  42 SvgWin::SvgWin(SvgMain *client)
  43  : PluginClientWindow(client, 420, 210, 420, 210, 1)
  44 {
  45         this->client = client;
  46         this->editing = 0;
  47 }
  48
  49 SvgWin::~SvgWin()
  50 {
  51 }
  52
  53 void SvgWin::create_objects()
  54 {
  55         BC_Title *title;
  56         int x0 = 10, y = 10;
  57
  58         add_tool(title = new BC_Title(x0, y, _("Out X:")));
  59         int x1 = x0 + title->get_w() + 10;
  60         out_x = new SvgCoord(this, client, x1, y, &client->config.out_x);
  61         out_x->create_objects();
  62         int x2 = x1 + out_x->get_w() + 15;
  63         add_tool(title = new BC_Title(x2, y, _("Out W:")));
  64         int x3 = x2 + title->get_w() + 10;
  65         out_w = new SvgCoord(this, client, x3, y, &client->config.out_w);
  66         out_w->create_objects();
  67         y += out_x->get_h() + 5;
  68
  69         add_tool(new BC_Title(x0, y, _("Out Y:")));
  70         out_y = new SvgCoord(this, client, x1, y, &client->config.out_y);
  71         out_y->create_objects();
  72         add_tool(title = new BC_Title(x2, y, _("Out H:")));
  73         out_h = new SvgCoord(this, client, x3, y, &client->config.out_h);
  74         out_h->create_objects();
  75         y += out_y->get_h() + 20;
  76
  77         add_tool(title = new BC_Title(x0, y, _("DPI:")));
  78         dpi = new DpiValue(this, client, x1, y, &client->config.dpi);
  79         dpi->create_objects();
  80         add_tool(dpi_button = new DpiButton(this, client, x2, y));
  81         dpi_button->create_objects();
  82         y += dpi->get_h() + 20;
  83
  84         add_tool(svg_file_title = new BC_Title(x0, y, client->config.svg_file));
  85         y += svg_file_title->get_h() + 5;
  86         struct stat st;
  87         int64_t ms_time = stat(client->config.svg_file, &st) ? 0 :
  88                 st.st_mtim.tv_sec*1000 + st.st_mtim.tv_nsec/1000000;
  89         char mtime[BCSTRLEN];  mtime[0] = 0;
  90         if( ms_time > 0 ) {
  91                 time_t tm = ms_time/1000;
  92                 ctime_r(&tm ,mtime);
  93         }
  94         add_tool(svg_file_mstime = new BC_Title(x0, y, mtime));
  95         y += svg_file_mstime->get_h() + 15;
  96
  97         y = get_h() - NewSvgButton::calculate_h() - 5;
  98         add_tool(new_svg_button = new NewSvgButton(client, this, x0, y));
  99         y = get_h() - EditSvgButton::calculate_h() - 5;
 100         add_tool(edit_svg_button = new EditSvgButton(client, this, x0+300, y));
 101
 102         show_window();
 103         flush();
 104 }
 105
 106 int SvgWin::close_event()
 107 {
 108         edit_svg_button->stop();
 109         set_done(1);
 110         return 1;
 111 }
 112
 113 int SvgWin::hide_window(int flush)
 114 {
 115         edit_svg_button->stop();
 116         return BC_WindowBase::hide_window(flush);
 117 }
 118
 119
 120 void SvgWin::update_gui(SvgConfig &config)
 121 {
 122         lock_window("SvgWin::update_gui");
 123         out_x->update(config.out_x);
 124         out_y->update(config.out_y);
 125         out_w->update(config.out_w);
 126         out_h->update(config.out_h);
 127         dpi->update(config.dpi);
 128         svg_file_title->update(config.svg_file);
 129         char mtime[BCSTRLEN];  mtime[0] = 0;
 130         if( config.ms_time > 0 ) {
 131                 time_t tm = config.ms_time/1000;
 132                 ctime_r(&tm ,mtime);
 133         }
 134         svg_file_mstime->update(mtime);
 135         unlock_window();
 136 }
 137
 138 SvgCoord::SvgCoord(SvgWin *win, SvgMain *client, int x, int y, float *value)
 139  : BC_TumbleTextBox(win, *value, (float)0, (float)3000, x, y, 100)
 140 {
 141 //printf("SvgWidth::SvgWidth %f\n", client->config.w);
 142         this->client = client;
 143         this->win = win;
 144         this->value = value;
 145 }
 146
 147 SvgCoord::~SvgCoord()
 148 {
 149 }
 150
 151 int SvgCoord::handle_event()
 152 {
 153         *value = atof(get_text());
 154         client->send_configure_change();
 155         return 1;
 156 }
 157
 158 NewSvgButton::NewSvgButton(SvgMain *client, SvgWin *window, int x, int y)
 159  : BC_GenericButton(x, y, _("New/Open SVG..."))
 160 {
 161         this->client = client;
 162         this->window = window;
 163 }
 164
 165 int NewSvgButton::handle_event()
 166 {
 167         window->editing_lock.lock();
 168         if( !window->editing ) {
 169                 window->editing = 1;
 170                 window->editing_lock.unlock();
 171                 start();
 172         }
 173         else {
 174                 flicker();
 175                 window->editing_lock.unlock();
 176         }
 177
 178         return 1;
 179 }
 180
 181 void NewSvgButton::run()
 182 {
 183 // ======================================= get path from user
 184         int result;
 185 //printf("NewSvgButton::run 1\n");
 186         result = 1;
 187         char filename[1024];
 188         strncpy(filename, client->config.svg_file, sizeof(filename));
 189 // Loop until file is chosen
 190         do {
 191                 char directory[1024];
 192                 strncpy(directory, client->config.svg_file, sizeof(directory));
 193                 char *cp = strrchr(directory, '/');
 194                 if( cp ) *cp = 0;
 195                 if( !directory[0] ) {
 196                         char *cp = getenv("HOME");
 197                         if( cp ) strncpy(directory, cp, sizeof(directory));
 198                 }
 199                 NewSvgWindow *new_window = new NewSvgWindow(client, window, directory);
 200                 new_window->create_objects();
 201                 new_window->update_filter("*.svg");
 202                 result = new_window->run_window();
 203                 const char *filepath = new_window->get_path(0);
 204                 strcpy(filename, filepath);
 205                 delete new_window;
 206                 if( result || !filepath || !*filepath ) {
 207                         window->editing_lock.lock();
 208                         window->editing = 0;
 209                         window->editing_lock.unlock();
 210                         return;              // cancel or no filename given
 211                 }
 212
 213 // Extend the filename with .svg
 214                 if( strlen(filename) < 4 ||
 215                         strcasecmp(&filename[strlen(filename) - 4], ".svg") ) {
 216                         strcat(filename, ".svg");
 217                 }
 218
 219                 if( !access(filename, R_OK) )
 220                         result = 0;
 221                 else {
 222                         FILE *out = fopen(filename,"w");
 223                         if( out ) {
 224                                 unsigned long size = sizeof(empty_svg) - 4;
 225                                 fwrite(empty_svg+4, size,  1, out);
 226                                 fclose(out);
 227                                 result = 0;
 228                         }
 229                 }
 230         } while(result);        // file doesn't exist so repeat
 231
 232         strcpy(client->config.svg_file, filename);
 233         struct stat st;
 234         client->config.ms_time = stat(filename, &st) ? 0 :
 235                 st.st_mtim.tv_sec*1000 + st.st_mtim.tv_nsec/1000000;
 236         window->update_gui(client->config);
 237         client->send_configure_change();
 238
 239         window->editing_lock.lock();
 240         window->editing = 0;
 241         window->editing_lock.unlock();
 242
 243         return;
 244 }
 245
 246 EditSvgButton::EditSvgButton(SvgMain *client, SvgWin *window, int x, int y)
 247  : BC_GenericButton(x, y, _("Edit")), Thread(1)
 248 {
 249         this->client = client;
 250         this->window = window;
 251         fh_fifo = -1;
 252 }
 253
 254 EditSvgButton::~EditSvgButton()
 255 {
 256         stop();
 257 }
 258
 259 void EditSvgButton::stop()
 260 {
 261         if( running() ) {
 262                 if( fh_fifo >= 0 ) {
 263                         struct fifo_struct fifo_buf;
 264                         fifo_buf.pid = getpid();
 265                         fifo_buf.action = 3;
 266                         write(fh_fifo, &fifo_buf, sizeof(fifo_buf));
 267                 }
 268         }
 269         join();
 270 }
 271
 272 int EditSvgButton::handle_event()
 273 {
 274
 275         window->editing_lock.lock();
 276         if( !window->editing && client->config.svg_file[0] != 0 ) {
 277                 window->editing = 1;
 278                 window->editing_lock.unlock();
 279                 start();
 280         }
 281         else {
 282                 flicker();
 283                 window->editing_lock.unlock();
 284         }
 285         return 1;
 286 }
 287
 288 void EditSvgButton::run()
 289 {
 290 // ======================================= get path from user
 291         char filename_png[1024];
 292         char filename_fifo[1024];
 293         strcpy(filename_png, client->config.svg_file);
 294         strcat(filename_png, ".png");
 295         remove(filename_png);
 296         strcpy(filename_fifo, filename_png);
 297         strcat(filename_fifo, ".fifo");
 298         remove(filename_fifo);
 299         if( !mkfifo(filename_fifo, S_IRWXU) &&
 300             (fh_fifo = ::open(filename_fifo, O_RDWR+O_NONBLOCK)) >= 0 ) {
 301                 SvgInkscapeThread inkscape_thread(this);
 302                 inkscape_thread.start();
 303                 int done = 0;
 304                 while( inkscape_thread.running() && !done ) {
 305                         struct stat st;
 306                         int64_t ms_time = stat(client->config.svg_file, &st) ? 0 :
 307                                 st.st_mtim.tv_sec*1000 + st.st_mtim.tv_nsec/1000000;
 308                         if( client->config.ms_time != ms_time ) {
 309                                 client->config.ms_time = ms_time;
 310                                 client->send_configure_change();
 311                         }
 312                         // select(fh_fifo+1,rds,0,ers,tmo) does not work here
 313                         Timer::delay(200);
 314                         struct fifo_struct fifo_buf; fifo_buf.action = 1;
 315                         int ret = read(fh_fifo, &fifo_buf, sizeof(fifo_buf));
 316                         if( ret < 0 ) {
 317                                 if( errno == EAGAIN ) continue;
 318                                 perror("fifo");
 319                                 break;
 320                         }
 321                         if( ret != sizeof(fifo_buf) ) continue;
 322                         switch( fifo_buf.action ) {
 323                         case 1: break;
 324                         case 2: printf(_("Inkscape has exited\n"));
 325                                 break;
 326                         case 3: printf(_("Plugin window has closed\n"));
 327                                 done = 1;
 328                                 break;
 329                         }
 330                 }
 331         }
 332         else
 333                 perror(_("Error opening fifo file"));
 334         remove(filename_fifo); // fifo destroyed on last close
 335         ::close(fh_fifo);
 336         window->editing_lock.lock();
 337         window->editing = 0;
 338         window->editing_lock.unlock();
 339         struct stat st;
 340         client->config.ms_time = stat(client->config.svg_file, &st) ? 0 :
 341                 st.st_mtim.tv_sec*1000 + st.st_mtim.tv_nsec/1000000;
 342         client->send_configure_change();
 343 }
 344
 345 SvgInkscapeThread::SvgInkscapeThread(EditSvgButton *edit)
 346  : Thread(1)
 347 {
 348         this->edit = edit;;
 349 }
 350
 351 SvgInkscapeThread::~SvgInkscapeThread()
 352 {
 353         cancel();
 354         join();
 355 }
 356
 357 void SvgInkscapeThread::run()
 358 {
 359 // Runs the inkscape
 360         char command[1024];
 361         sprintf(command, "inkscape --with-gui %s", edit->client->config.svg_file);
 362         printf(_("Running external SVG editor: %s\n"), command);
 363
 364         enable_cancel();
 365         system(command);
 366         printf(_("External SVG editor finished\n"));
 367         struct fifo_struct fifo_buf;
 368         fifo_buf.pid = getpid();
 369         fifo_buf.action = 2;
 370         write(edit->fh_fifo, &fifo_buf, sizeof(fifo_buf));
 371         disable_cancel();
 372
 373         return;
 374 }
 375
 376
 377
 378 NewSvgWindow::NewSvgWindow(SvgMain *client, SvgWin *window, char *init_directory)
 379  : BC_FileBox(0,
 380         BC_WindowBase::get_resources()->filebox_h / 2,
 381         init_directory,
 382         _("SVG Plugin: Pick SVG file"),
 383         _("Open an existing SVG file or create a new one"))
 384 {
 385         this->window = window;
 386 }
 387
 388 NewSvgWindow::~NewSvgWindow() {}
 389
 390
 391 DpiValue::DpiValue(SvgWin *win, SvgMain *client, int x, int y, float *value)
 392  : BC_TumbleTextBox(win, *value, (float)10, (float)1000, x, y, 100)
 393 {
 394 //printf("SvgWidth::SvgWidth %f\n", client->config.w);
 395         this->client = client;
 396         this->win = win;
 397         this->value = value;
 398 }
 399
 400 DpiValue::~DpiValue()
 401 {
 402 }
 403
 404 int DpiValue::handle_event()
 405 {
 406         *value = atof(get_text());
 407         return 1;
 408 }
 409
 410
 411 DpiButton::DpiButton( SvgWin *window, SvgMain *client, int x, int y)
 412  : BC_GenericButton(x, y, _("update dpi"))
 413 {
 414         this->client = client;
 415         this->window = window;
 416 }
 417
 418 DpiButton::~DpiButton()
 419 {
 420 }
 421
 422 int DpiButton::handle_event()
 423 {
 424         client->send_configure_change();
 425         return 1;
 426 };
 427