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