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 }
  38
  39 BC_DialogThread::~BC_DialogThread()
  40 {
  41         startup_lock->lock("BC_DialogThread::~BC_DialogThread");
  42         if(gui)
  43         {
  44                 gui->lock_window();
  45                 gui->set_done(1);
  46                 gui->unlock_window();
  47         }
  48         startup_lock->unlock();
  49
  50         delete startup_lock;
  51         delete window_lock;
  52 }
  53
  54 void BC_DialogThread::lock_window(const char *location)
  55 {
  56         window_lock->lock(location);
  57 }
  58
  59 void BC_DialogThread::unlock_window()
  60 {
  61         window_lock->unlock();
  62 }
  63
  64 int BC_DialogThread::is_running()
  65 {
  66         return Thread::running();
  67 }
  68
  69 void BC_DialogThread::start()
  70 {
  71         if(Thread::running())
  72         {
  73                 window_lock->lock("BC_DialogThread::start");
  74                 if(gui)
  75                 {
  76                         gui->lock_window("BC_DialogThread::start");
  77                         gui->raise_window(1);
  78                         gui->unlock_window();
  79                 }
  80                 window_lock->unlock();
  81                 return;
  82         }
  83
  84 // Don't allow anyone else to create the window
  85         startup_lock->lock("BC_DialogThread::start");
  86         Thread::start();
  87
  88 // Wait for startup
  89         startup_lock->lock("BC_DialogThread::start");
  90         startup_lock->unlock();
  91         gui->init_wait();
  92 }
  93
  94 void BC_DialogThread::run()
  95 {
  96         gui = new_gui();
  97         startup_lock->unlock();
  98         int result = gui->run_window();
  99
 100         handle_done_event(result);
 101
 102         window_lock->lock("BC_DialogThread::run");
 103         delete gui;
 104         gui = 0;
 105         window_lock->unlock();
 106
 107         handle_close_event(result);
 108 }
 109
 110 void BC_DialogThread::lock_gui(const char *location)
 111 {
 112         window_lock->lock(location);
 113 }
 114
 115 void BC_DialogThread::unlock_gui()
 116 {
 117         window_lock->unlock();
 118 }
 119
 120
 121 BC_Window* BC_DialogThread::new_gui()
 122 {
 123         printf("BC_DialogThread::new_gui called\n");
 124         return 0;
 125 }
 126
 127 BC_Window* BC_DialogThread::get_gui()
 128 {
 129         return gui;
 130 }
 131
 132 void BC_DialogThread::handle_done_event(int result)
 133 {
 134 }
 135
 136 void BC_DialogThread::handle_close_event(int result)
 137 {
 138 }
 139
 140 void BC_DialogThread::close_window()
 141 {
 142         lock_window("BC_DialogThread::close_window");
 143         if(gui)
 144         {
 145                 gui->lock_window("BC_DialogThread::close_window");
 146                 gui->set_done(1);
 147                 gui->unlock_window();
 148         }
 149         unlock_window();
 150         join();
 151 }
 152
 153
 154
 155