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e73d6fcaac
This allows using the grfid without having to dereference the grffile pointer. Uses no extra storage as it fits within otherwise wasted padding space.
225 lines
8.5 KiB
C++
225 lines
8.5 KiB
C++
/*
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* This file is part of OpenTTD.
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* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
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* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file picker_gui.h Functions/types etc. related to the picker GUI. */
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#ifndef PICKER_GUI_H
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#define PICKER_GUI_H
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#include "querystring_gui.h"
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#include "sortlist_type.h"
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#include "stringfilter_type.h"
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#include "strings_type.h"
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#include "timer/timer.h"
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#include "timer/timer_game_calendar.h"
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#include "timer/timer_window.h"
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#include "window_gui.h"
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#include "window_type.h"
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struct PickerItem {
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uint32_t grfid;
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uint16_t local_id;
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int class_index;
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int index;
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inline auto operator<=>(const PickerItem &other) const
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{
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if (auto cmp = this->grfid <=> other.grfid; cmp != 0) return cmp;
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return this->local_id <=> other.local_id;
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}
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};
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/** Class for PickerClassWindow to collect information and retain state. */
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class PickerCallbacks {
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public:
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explicit PickerCallbacks(const std::string &ini_group);
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virtual ~PickerCallbacks();
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virtual void Close(int) { }
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/** Should picker class/type selection be enabled? */
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virtual bool IsActive() const = 0;
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/** Are there multiple classes to chose from? */
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virtual bool HasClassChoice() const = 0;
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/* Class callbacks */
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/** Get the tooltip string for the class list. */
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virtual StringID GetClassTooltip() const = 0;
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/** Get the number of classes. @note Used only to estimate space requirements. */
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virtual int GetClassCount() const = 0;
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/** Get the index of the selected class. */
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virtual int GetSelectedClass() const = 0;
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/** Set the selected class. */
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virtual void SetSelectedClass(int id) const = 0;
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/** Get the name of a class. */
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virtual StringID GetClassName(int id) const = 0;
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/* Type callbacks */
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/** Get the tooltip string for the type grid. */
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virtual StringID GetTypeTooltip() const = 0;
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/** Get the number of types in a class. @note Used only to estimate space requirements. */
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virtual int GetTypeCount(int cls_id) const = 0;
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/** Get the selected type. */
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virtual int GetSelectedType() const = 0;
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/** Set the selected type. */
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virtual void SetSelectedType(int id) const = 0;
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/** Get data about an item. */
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virtual PickerItem GetPickerItem(int cls_id, int id) const = 0;
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/** Get the item of a type. */
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virtual StringID GetTypeName(int cls_id, int id) const = 0;
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/** Test if an item is currently buildable. */
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virtual bool IsTypeAvailable(int cls_id, int id) const = 0;
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/** Draw preview image of an item. */
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virtual void DrawType(int x, int y, int cls_id, int id) const = 0;
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/** Fill a set with all items that are used by the current player. */
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virtual void FillUsedItems(std::set<PickerItem> &items) = 0;
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/** Update link between grfid/localidx and class_index/index in saved items. */
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virtual std::set<PickerItem> UpdateSavedItems(const std::set<PickerItem> &src) = 0;
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Listing class_last_sorting = { false, 0 }; ///< Default sorting of #PickerClassList.
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Filtering class_last_filtering = { false, 0 }; ///< Default filtering of #PickerClassList.
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Listing type_last_sorting = { false, 0 }; ///< Default sorting of #PickerTypeList.
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Filtering type_last_filtering = { false, 0 }; ///< Default filtering of #PickerTypeList.
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const std::string ini_group; ///< Ini Group for saving favourites.
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uint8_t mode = 0; ///< Bitmask of \c PickerFilterModes.
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std::set<PickerItem> used; ///< Set of items used in the current game by the current company.
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std::set<PickerItem> saved; ///< Set of saved favourite items.
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};
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/** Helper for PickerCallbacks when the class system is based on NewGRFClass. */
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template <typename T>
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class PickerCallbacksNewGRFClass : public PickerCallbacks {
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public:
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explicit PickerCallbacksNewGRFClass(const std::string &ini_group) : PickerCallbacks(ini_group) {}
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inline typename T::index_type GetClassIndex(int cls_id) const { return static_cast<typename T::index_type>(cls_id); }
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inline const T *GetClass(int cls_id) const { return T::Get(this->GetClassIndex(cls_id)); }
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inline const typename T::spec_type *GetSpec(int cls_id, int id) const { return this->GetClass(cls_id)->GetSpec(id); }
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bool HasClassChoice() const override { return T::GetUIClassCount() > 1; }
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int GetClassCount() const override { return T::GetClassCount(); }
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int GetTypeCount(int cls_id) const override { return this->GetClass(cls_id)->GetSpecCount(); }
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PickerItem GetPickerItem(const typename T::spec_type *spec, int cls_id = -1, int id = -1) const
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{
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if (spec == nullptr) return {0, 0, cls_id, id};
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return {spec->grf_prop.grfid, spec->grf_prop.local_id, spec->class_index, spec->index};
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}
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PickerItem GetPickerItem(int cls_id, int id) const override
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{
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return GetPickerItem(GetClass(cls_id)->GetSpec(id), cls_id, id);
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}
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std::set<PickerItem> UpdateSavedItems(const std::set<PickerItem> &src) override
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{
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if (src.empty()) return {};
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std::set<PickerItem> dst;
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for (const auto &item : src) {
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const auto *spec = T::GetByGrf(item.grfid, item.local_id);
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if (spec == nullptr) {
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dst.insert({item.grfid, item.local_id, -1, -1});
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} else {
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dst.insert(GetPickerItem(spec));
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}
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}
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return dst;
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}
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};
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struct PickerFilterData : StringFilter {
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const PickerCallbacks *callbacks; ///< Callbacks for filter functions to access to callbacks.
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};
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using PickerClassList = GUIList<int, std::nullptr_t, PickerFilterData &>; ///< GUIList holding classes to display.
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using PickerTypeList = GUIList<PickerItem, std::nullptr_t, PickerFilterData &>; ///< GUIList holding classes/types to display.
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class PickerWindow : public PickerWindowBase {
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public:
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enum PickerFilterModes {
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PFM_ALL = 0, ///< Show all classes.
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PFM_USED = 1, ///< Show used types.
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PFM_SAVED = 2, ///< Show saved types.
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};
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enum PickerFilterInvalidation {
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PFI_CLASS = 1U << 0, ///< Refresh the class list.
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PFI_TYPE = 1U << 1, ///< Refresh the type list.
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PFI_POSITION = 1U << 2, ///< Update scroll positions.
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PFI_VALIDATE = 1U << 3, ///< Validate selected item.
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};
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static const int PREVIEW_WIDTH = 64; ///< Width of each preview button.
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static const int PREVIEW_HEIGHT = 48; ///< Height of each preview button.
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static const int PREVIEW_LEFT = 31; ///< Offset from left edge to draw preview.
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static const int PREVIEW_BOTTOM = 31; ///< Offset from bottom edge to draw preview.
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static const uint EDITBOX_MAX_SIZE = 16; ///< The maximum number of characters for the filter edit box.
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bool has_class_picker = false; ///< Set if this window has a class picker 'component'.
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bool has_type_picker = false; ///< Set if this window has a type picker 'component'.
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PickerWindow(WindowDesc &desc, Window *parent, int window_number, PickerCallbacks &callbacks);
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void Close(int data = 0) override;
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void UpdateWidgetSize(WidgetID widget, Dimension &size, const Dimension &padding, Dimension &fill, Dimension &resize) override;
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void DrawWidget(const Rect &r, WidgetID widget) const override;
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void OnResize() override;
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void OnClick(Point pt, WidgetID widget, int click_count) override;
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void OnInvalidateData(int data = 0, bool gui_scope = true) override;
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EventState OnHotkey(int hotkey) override;
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void OnEditboxChanged(WidgetID wid) override;
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/** Enum referring to the Hotkeys in the picker window */
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enum PickerClassWindowHotkeys {
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PCWHK_FOCUS_FILTER_BOX, ///< Focus the edit box for editing the filter string
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};
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protected:
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void ConstructWindow();
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PickerCallbacks &callbacks;
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private:
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PickerClassList classes; ///< List of classes.
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PickerFilterData class_string_filter;
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QueryString class_editbox; ///< Filter editbox.
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void BuildPickerClassList();
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void EnsureSelectedClassIsValid();
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void EnsureSelectedClassIsVisible();
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PickerTypeList types; ///< List of types.
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PickerFilterData type_string_filter;
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QueryString type_editbox; ///< Filter editbox
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void RefreshUsedTypeList();
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void BuildPickerTypeList();
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void EnsureSelectedTypeIsValid();
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void EnsureSelectedTypeIsVisible();
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IntervalTimer<TimerGameCalendar> yearly_interval = {{TimerGameCalendar::YEAR, TimerGameCalendar::Priority::NONE}, [this](auto) {
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this->SetDirty();
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}};
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IntervalTimer<TimerWindow> refresh_interval = {std::chrono::seconds(3), [this](auto) {
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RefreshUsedTypeList();
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}};
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};
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class NWidgetBase;
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std::unique_ptr<NWidgetBase> MakePickerClassWidgets();
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std::unique_ptr<NWidgetBase> MakePickerTypeWidgets();
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#endif /* PICKER_GUI_H */
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