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[Rafał Cieślak <rafalcieslak256@xxxxxxxxx>]

** Branch unlinked: lp:~rafalcieslak256/millenniumduel/cached-redrawing

** Changed in: millenniumduel
     Assignee: Rafał Cieślak (rafalcieslak256) => Adam Malinowski (adayah)

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https://bugs.launchpad.net/bugs/1204852

Title:
  Incorrect on_clicked propagation by HBox and VBox.

Status in Millennium Duel - a GUI frontend for Millennium:
  Triaged

Bug description:
  In function

  HBox::on_clicked

  there is a piece of code:

      for(auto i : children){
          sum += i.size;
          if(p.x <= sum) { // This item was clicked!
              i.item.on_clicked(SCoordinates(p.x - sum, p.y));
              return;
          }
          sum += spacing;
          if(p.x <= sum){ // Empty space between items was clicked
              return;
          }
      }

  It probably causes click event to be propagated to item i with wrong
  coordinates. Line

              i.item.on_clicked(SCoordinates(p.x - sum, p.y));

  should be replaced with

              i.item.on_clicked(SCoordinates(p.x - (sum - i.size),
  p.y));

  or, more elegantly, addition to sum could be delayed:

      for(auto i : children){
          if(p.x <= sum + i.size) { // This item was clicked!
              i.item.on_clicked(SCoordinates(p.x - sum, p.y));
              return;
          }
          sum += i.size;
          sum += spacing;
          if(p.x <= sum){ // Empty space between items was clicked
              return;
          }
      }

  The same bug affects function VBox::on_clicked.

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