cinelerra-5.0/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         cancel();
  50         join();
  51
  52         delete startup_lock;
  53         delete window_lock;
  54 }
  55
  56 void BC_DialogThread::lock_window(const char *location)
  57 {
  58         window_lock->lock(location);
  59 }
  60
  61 void BC_DialogThread::unlock_window()
  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         gui = new_gui();
  99         startup_lock->unlock();
 100         int result = gui->run_window();
 101
 102         handle_done_event(result);
 103
 104         window_lock->lock("BC_DialogThread::run");
 105         delete gui;
 106         gui = 0;
 107         window_lock->unlock();
 108
 109         handle_close_event(result);
 110 }
 111
 112 void BC_DialogThread::lock_gui(const char *location)
 113 {
 114         window_lock->lock(location);
 115 }
 116
 117 void BC_DialogThread::unlock_gui()
 118 {
 119         window_lock->unlock();
 120 }
 121
 122
 123 BC_Window* BC_DialogThread::new_gui()
 124 {
 125         printf("BC_DialogThread::new_gui called\n");
 126         return 0;
 127 }
 128
 129 BC_Window* BC_DialogThread::get_gui()
 130 {
 131         return gui;
 132 }
 133
 134 void BC_DialogThread::handle_done_event(int result)
 135 {
 136 }
 137
 138 void BC_DialogThread::handle_close_event(int result)
 139 {
 140 }
 141
 142 void BC_DialogThread::close_window()
 143 {
 144         lock_window("BC_DialogThread::close_window");
 145         if(gui)
 146         {
 147                 gui->lock_window("BC_DialogThread::close_window");
 148                 gui->set_done(1);
 149                 gui->unlock_window();
 150         }
 151         unlock_window();
 152 }
 153
 154
 155
 156