cpp/openttd-patchpack/source Changeset - r28708:87001b4757db

Changeset - r28708:87001b4757db

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Peter Nelson - 6 months ago 2023-11-11 21:57:49
peter1138@openttd.org

Codechange: Add method to replace the content of a dropdown menu.

If necessary the dropdown list window will be resized and scrollbar enabled/disabled.

2 files changed with 18 insertions and 1 deletions:

src/widgets/dropdown.cpp

src/widgets/dropdown_type.h

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src/widgets/dropdown.cpp

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@@ @@ -42,7 +42,7 @@ static WindowDesc _dropdown_desc(__FILE_ @@
 struct DropdownWindow : Window {
 	WidgetID parent_button;       ///< Parent widget number where the window is dropped from.
 	Rect wi_rect;                 ///< Rect of the button that opened the dropdown.
-	const DropDownList list;      ///< List with dropdown menu items.
+	DropDownList list;            ///< List with dropdown menu items.
 	int selected_result;          ///< Result value of the selected item in the list.
 	byte click_delay = 0;         ///< Timer to delay selection.
 	bool drag_mode = true;
@@ @@ -303,8 +303,23 @@ struct DropdownWindow : Window { @@
+			}
+		}
+	}
 	void ReplaceList(DropDownList &&list)
+	{
 		this->list = std::move(list);
 		this->UpdateSizeAndPosition();
 		this->ReInit(0, 0);
 		this->InitializePositionSize(this->position.x, this->position.y, this->nested_root->smallest_x, this->nested_root->smallest_y);
 		this->SetDirty();
+	}
 };
 void ReplaceDropDownList(Window *parent, DropDownList &&list)
+{
 	DropdownWindow *ddw = dynamic_cast<DropdownWindow *>(parent->FindChildWindow(WC_DROPDOWN_MENU));
 	if (ddw != nullptr) ddw->ReplaceList(std::move(list));
+}
 /**
  * Determine width and height required to fully display a DropDownList
  * @param list The list.

src/widgets/dropdown_type.h

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@@ @@ -215,4 +215,6 @@ void ShowDropDownList(Window *w, DropDow @@
 Dimension GetDropDownListDimension(const DropDownList &list);
 void ReplaceDropDownList(Window *parent, DropDownList &&list);
 #endif /* WIDGETS_DROPDOWN_TYPE_H */

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