Allow Windows Close (X) in more popup dialogs

- Settings
- Skins
- Copy Page
- Resolution
- Gradients
- Brush Effects
- Brush menu
- Effects
- Help / About
- Statistics
- Palette
- Palette Historgram
- 2nd palette menu

src/buttons.c

@@ -1164,7 +1164,7 @@ void Button_Settings(int btn)
     else if (Is_shortcut(Key,0x100+BUTTON_SETTINGS))
       clicked_button=4;
   }
-  while ( (clicked_button!=4) && (Key!=KEY_RETURN) );
+  while ( (clicked_button!=4) && (Key!=KEY_RETURN) && !Quit_is_required);
 
   // Checks on change
   if (Config.Show_hidden_directories!=selected_config.Show_hidden_directories
@@ -1490,7 +1490,7 @@ void Button_Skins(int btn)
         break;
     }
   }
-  while ( (clicked_button!=1) && (clicked_button !=6) && (Key != KEY_ESCAPE));
+  while ( (clicked_button!=1) && (clicked_button !=6) && (Key != KEY_ESCAPE) && !Quit_is_required);
 
   if(clicked_button == 1)
   {
@@ -1708,7 +1708,7 @@ void Button_Copy_page(int btn)
     else if (Is_shortcut(Key,0x200+BUTTON_PAGE))
       clicked_button=6;
   }
-  while (clicked_button<=0);
+  while (clicked_button<=0 && !Quit_is_required);
 
   Close_window();
   Display_cursor();
@@ -2174,7 +2174,7 @@ void Button_Resolution(int btn)
     }
 
   }
-  while ((clicked_button!=1) && (clicked_button!=2));
+  while ((clicked_button!=1) && (clicked_button!=2) && !Quit_is_required);
 
   Close_window();
 
@@ -2823,7 +2823,7 @@ void Button_Gradients(int btn)
         }
     }
   }
-  while (clicked_button!=6 && clicked_button!=7);
+  while (clicked_button!=6 && clicked_button!=7 && !Quit_is_required);
 
   Close_window();
   // The Grad rect operation uses the same button as Grad menu.
@@ -4042,7 +4042,7 @@ void Button_Brush_FX(int btn)
       clicked_button=1;
     }
   }
-  while (clicked_button<=0);
+  while (clicked_button<=0 && Quit_is_required);
 
   Close_window();
   Unselect_button(btn);
@@ -4500,7 +4500,7 @@ void Button_Airbrush_menu(int btn)
       }
     }
   }
-  while ( (clicked_button!=1) && (clicked_button!=2) );
+  while ( (clicked_button!=1) && (clicked_button!=2) && !Quit_is_required);
 
   Close_window();
 
@@ -4958,9 +4958,9 @@ void Button_Effects(int btn)
         Display_cursor();
     }
   }
-  while (clicked_button!=11);
+  while (clicked_button!=11 && !Quit_is_required);
 
-  if (exit_by_close_button)
+  if (exit_by_close_button || Quit_is_required)
     Close_window();
   else
     Hide_cursor();

src/help.c

@@ -768,7 +768,7 @@ void Window_help(int section, const char *sub_section)
     if (Is_shortcut(Key,0x100+BUTTON_HELP))
       clicked_button=1;
   }
-  while ((clicked_button!=1) && (Key!=KEY_RETURN));
+  while ((clicked_button!=1) && (Key!=KEY_RETURN) && !Quit_is_required);
 
   Key=0;
   Close_window();
@@ -1057,7 +1057,7 @@ void Button_Stats(int btn)
     if (Is_shortcut(Key,0x200+BUTTON_HELP))
       clicked_button=1;
   }
-  while ( (clicked_button!=1) && (Key!=KEY_RETURN) );
+  while ( (clicked_button!=1) && (Key!=KEY_RETURN) && !Quit_is_required);
 
   if(Key==KEY_RETURN)Key=0;
 

src/palette.c

@@ -1036,7 +1036,7 @@ int Window_Histogram(unsigned char block_start, unsigned char block_end, dword*
     if (Key == KEY_ESC)
       clicked_button=1;
 
-  } while( clicked_button < 1);
+  } while( clicked_button < 1 && !Quit_is_required);
   Close_window();
 
   if (clicked_button==2)
@@ -2832,7 +2832,7 @@ void Button_Palette(int btn)
       }
     }
   }
-  while ((clicked_button!=13) && (clicked_button!=14));
+  while ((clicked_button!=13) && (clicked_button!=14) && !Quit_is_required);
 
   if (clicked_button==14)         // Sortie par OK
   {
@@ -2862,7 +2862,7 @@ void Button_Palette(int btn)
 
   Display_cursor();
 
-  if (clicked_button==13)                         // Sortie par CANCEL
+  if (clicked_button==13 || Quit_is_required)  // CANCEL was clicked
   {
     Set_palette(Main.palette);
     if (image_is_backed_up)
@@ -3009,7 +3009,7 @@ void Button_Secondary_palette(int btn)
         break;
     }
   }
-  while (clicked_button!=1 && clicked_button!=2 && clicked_button!=3 && clicked_button!=4);
+  while ((clicked_button <= 0 || clicked_button >= 5) && !Quit_is_required);
 
   // We need to get the sliders positions before closing the window, because they will be freed.
   palette_cols=256-columns_slider->Position;
@@ -3021,7 +3021,7 @@ void Button_Secondary_palette(int btn)
   Unselect_button(BUTTON_PALETTE);
   Display_cursor();
 
-  if (clicked_button==4) // Cancel
+  if (clicked_button==4 || Quit_is_required) // Cancel
     return;
 
   if (palette_vertical != Config.Palette_vertical)