preview mode mods, powerpc signal handler tweak, default wdws for 3 or more screens

[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / mainsession.C

diff --git a/cinelerra-5.1/cinelerra/mainsession.C b/cinelerra-5.1/cinelerra/mainsession.C
index f1b1974e05f2537fb3bc00d7799e0c29b3df968b..e40f343efbc16adc8a414a8c559a971442186c82 100644 (file)
--- a/cinelerra-5.1/cinelerra/mainsession.C
+++ b/cinelerra-5.1/cinelerra/mainsession.C
@@ -201,9 +201,42 @@ void MainSession::default_window_positions(int window_config)
        int border_bottom = display_info.get_bottom_border();
 
        int dual_head = screens > 1 ? 1 : 0;
-       int right_w = root_w;
+       int left_w = 0, right_w = root_w;
+       int xin_screens = display_info.get_xinerama_screens();
+       if( xin_screens > 1 ) {
+               dual_head = 1;
+               int x, y, w, h;
+               for( int s=0; s<xin_screens; ++s ) {
+                       if( display_info.xinerama_geometry(s, x, y, w, h) )
+                               continue;
+                       if( !y && !x ) {
+                               left_w = w;
+                               break;
+                       }
+               }
+               if( left_w > 0 ) {
+                       for( int s=0; s<xin_screens; ++s ) {
+                               if( display_info.xinerama_geometry(s, x, y, w, h) )
+                                       continue;
+                               if( !y && x == left_w ) {
+                                       right_w = w;
+                                       screens = 2;
+                                       break;
+                               }
+                       }
+                       if( window_config == 1 ) {
+                               root_x = left_w;
+                               root_w = right_w;
+                       }
+                       else {
+                       // use same aspect ratio to compute left height
+                               root_w = left_w;
+                               root_h = (root_w*root_h) / right_w;
+                       }
+               }
+       }
 // Wider than 16:9, narrower than dual head
-       if( screens < 2 && (float)root_w / root_h > 1.8) {
+       if( screens < 2 && (float)root_w / root_h > 1.8 ) {
                dual_head = 1;
                switch( root_h ) {
                case 600:  right_w = 800;   break;