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#ifndef _QueueListBox_h_
#define _QueueListBox_h_
#include <boost/optional/optional.hpp>
#include "CUIControls.h"
/** A simple ListBox row containing only a static label.*/
struct PromptRow : GG::ListBox::Row {
PromptRow(GG::X w, const std::string& prompt_str);
void CompleteConstruction() override;
void SizeMove(GG::Pt ul, GG::Pt lr) override;
private:
std::shared_ptr<GG::Label> m_prompt;
};
/** A list box type for representing queues (eg the research and production queues). */
class QueueListBox :
public CUIListBox
{
public:
QueueListBox(boost::optional<std::string_view> drop_type_str, std::string prompt_str);
void CompleteConstruction() override;
void Render() override;
void SizeMove(GG::Pt ul, GG::Pt lr) override;
void AcceptDrops(GG::Pt pt, std::vector<std::shared_ptr<GG::Wnd>> wnds, GG::Flags<GG::ModKey> mod_keys) override;
void DragDropHere(GG::Pt pt, std::map<const Wnd*, bool>& drop_wnds_acceptable, GG::Flags<GG::ModKey> mod_keys) override;
void DragDropLeave() override;
GG::X RowWidth() const noexcept;
//! scans this ListBox for the input iterator \a and returns its distance
//! from begin(), or -1 if not present
int IteraterIndex(const const_iterator it);
virtual void EnableOrderIssuing(bool enable = true);
bool OrderIssuingEnabled() const noexcept { return m_order_issuing_enabled; }
bool DisplayingValidQueueItems() const noexcept; ///< whether or not this QueueListBox is displaying valid queue items, as opposed to, for example, a prompt for the user to enter an item
void Clear();
/** Change the empty list prompt text. */
void SetEmptyPromptText(std::string prompt);
boost::signals2::signal<void (GG::ListBox::iterator)> QueueItemDeletedSignal;
protected:
void KeyPress(GG::Key key, uint32_t key_code_point, GG::Flags<GG::ModKey> mod_keys) override;
virtual void ItemRightClickedImpl(GG::ListBox::iterator it, GG::Pt pt, GG::Flags<GG::ModKey> modkeys);
/** Return a functor that will signal that \p it should be moved to the top of the list.*/
virtual std::function<void()> MoveToTopAction(GG::ListBox::iterator it);
/** Return a functor that will signal that \p it should be moved to the bottom of the list.*/
virtual std::function<void()> MoveToBottomAction(GG::ListBox::iterator it);
/** Return a functor that will signal that \p it should be deleted.*/
virtual std::function<void()> DeleteAction(GG::ListBox::iterator it) const;
private:
void ItemRightClicked(GG::ListBox::iterator it, GG::Pt pt, GG::Flags<GG::ModKey> modkeys);
void EnsurePromptHiddenSlot(iterator it);
void ShowPromptSlot();
void ShowPromptConditionallySlot(iterator it);
iterator m_drop_point;
bool m_show_drop_point = false;
bool m_order_issuing_enabled = true;
bool m_showing_prompt = false;
std::string m_prompt_str;
};
#endif
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