Marisa the Magician
31c8dde32f
cecd34301 Delay load DPI-related functions bfc172f70 Added exception to some unimplemented functions 7c8d469bc Added item modifications functions 847d0e6d9 Improved keyboard navigation 8c4270e0f Dropdown can now be closed by re-selecting it 91402c31e Fix dropdown positioning in x11 and win32 02da8cdc0 Added ListView::GetPreferredWidth, ListView::GetPreferredHeight, ListView::GetMinHeight 04bf153d9 Added event subscriber system 1ce55e5da Added Dropdown Known issues: does not hide when parent widget's visibility changes git-subtree-dir: libraries/ZWidget git-subtree-split: cecd34301d369400227eb0f27bad2ab41ad756d2
69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
#pragma once
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#include <string>
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#include <vector>
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#include <functional>
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#include "../../core/widget.h"
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#include "../../widgets/listview/listview.h"
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class DropdownList : public ListView
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{
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public:
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DropdownList(Widget* parent, Dropdown* owner);
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protected:
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void OnKeyDown(InputKey key) override;
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Dropdown* owner;
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};
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class Dropdown : public Widget
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{
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public:
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Dropdown(Widget* parent);
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void AddItem(const std::string& text, int index = -1);
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bool UpdateItem(const std::string& text, int index);
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bool RemoveItem(int index = -1);
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void ClearItems();
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const std::string& GetItem(int index);
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void SetMaxDisplayItems(int items);
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void SetDropdownDirection(bool below);
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int GetSelectedItem() const { return selectedItem; }
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void SetSelectedItem(int index);
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double GetPreferredHeight() const;
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double GetPreferredWidth() const;
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std::function<void(int)> OnChanged;
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protected:
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void OnPaint(Canvas* canvas) override;
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bool OnMouseDown(const Point& pos, InputKey key) override;
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void OnKeyDown(InputKey key) override;
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void OnGeometryChanged() override;
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void OnLostFocus() override;
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void Notify(Widget* source, const WidgetEvent type) override;
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private:
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void ItemsChanged();
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bool OpenDropdown();
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bool CloseDropdown();
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void OnDropdownActivated();
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size_t GetDisplayItems();
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std::vector<std::string> items;
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int selectedItem = -1;
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std::string text;
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bool dropdownOpen = false;
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Widget* dropdown = nullptr;
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DropdownList* listView = nullptr;
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int maxDisplayItems = 0;
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bool dropdownDirection = true;
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friend DropdownList;
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};
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