cinelerra-5.1/guicast/bcdialog.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 "bcdialog.h"
  23 #include "bcsignals.h"
  24 #include "condition.h"
  25 #include "mutex.h"
  26
  27
  28
  29
  30
  31 BC_DialogThread::BC_DialogThread()
  32  : Thread(0, 0, 0)
  33 {
  34         gui = 0;
  35         startup_lock = new Condition(1, "BC_DialogThread::startup_lock");
  36         window_lock = new Mutex("BC_DialogThread::window_lock");
  37         active_lock = new Mutex("BC_DialogThread::active_lock");
  38 }
  39
  40 BC_DialogThread::~BC_DialogThread()
  41 {
  42         startup_lock->lock("BC_DialogThread::~BC_DialogThread");
  43         if(gui)
  44         {
  45                 gui->lock_window();
  46                 gui->set_done(1);
  47                 gui->unlock_window();
  48         }
  49         startup_lock->unlock();
  50
  51         delete startup_lock;
  52         delete window_lock;
  53         delete active_lock;
  54 }
  55
  56 void BC_DialogThread::lock_dialog(const char *location)
  57 {
  58         window_lock->lock(location);
  59 }
  60
  61 void BC_DialogThread::unlock_dialog()
  62 {
  63         window_lock->unlock();
  64 }
  65
  66 int BC_DialogThread::is_running()
  67 {
  68         return Thread::running();
  69 }
  70
  71 void BC_DialogThread::start()
  72 {
  73         if(Thread::running())
  74         {
  75                 window_lock->lock("BC_DialogThread::start");
  76                 if(gui)
  77                 {
  78                         gui->lock_window("BC_DialogThread::start");
  79                         gui->raise_window(1);
  80                         gui->unlock_window();
  81                 }
  82                 window_lock->unlock();
  83                 return;
  84         }
  85
  86 // Don't allow anyone else to create the window
  87         startup_lock->lock("BC_DialogThread::start");
  88         Thread::start();
  89
  90 // Wait for startup
  91         startup_lock->lock("BC_DialogThread::start");
  92         startup_lock->unlock();
  93         gui->init_wait();
  94 }
  95
  96 void BC_DialogThread::run()
  97 {
  98         active_lock->lock("BC_DialogThread::run");
  99         gui = new_gui();
 100         startup_lock->unlock();
 101         int result = gui->run_window();
 102
 103         handle_done_event(result);
 104
 105         window_lock->lock("BC_DialogThread::run");
 106         delete gui;
 107         gui = 0;
 108         window_lock->unlock();
 109
 110         handle_close_event(result);
 111         active_lock->unlock();
 112 }
 113
 114 BC_Window* BC_DialogThread::new_gui()
 115 {
 116         printf("BC_DialogThread::new_gui called\n");
 117         return 0;
 118 }
 119
 120 BC_Window* BC_DialogThread::get_gui()
 121 {
 122         return gui;
 123 }
 124
 125 void BC_DialogThread::handle_done_event(int result)
 126 {
 127 }
 128
 129 void BC_DialogThread::handle_close_event(int result)
 130 {
 131 }
 132
 133 void BC_DialogThread::close_window()
 134 {
 135         lock_dialog("BC_DialogThread::close_window");
 136         if(gui)
 137         {
 138                 gui->lock_window("BC_DialogThread::close_window");
 139                 gui->set_done(1);
 140                 gui->unlock_window();
 141         }
 142         unlock_dialog();
 143         join();
 144 }
 145
 146 void BC_DialogThread::join()
 147 {
 148         if( !running() ) return;
 149         active_lock->lock("BC_DialogThread::join");
 150         active_lock->unlock();
 151 }
 152
 153