GUIDropDownController.h

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#pragma once
 
#include <string>
#include <vector>
 
#include <tdme/tdme.h>
#include <tdme/gui/elements/fwd-tdme.h>
#include <tdme/gui/events/fwd-tdme.h>
#include <tdme/gui/nodes/fwd-tdme.h>
#include <tdme/gui/nodes/GUIElementController.h>
#include <tdme/utilities/MutableString.h>
 
using std::string;
using std::vector;
 
using tdme::gui::events::GUIKeyboardEvent;
using tdme::gui::events::GUIMouseEvent;
using tdme::gui::nodes::GUIElementController;
using tdme::gui::nodes::GUIElementNode;
using tdme::gui::nodes::GUINode;
using tdme::gui::nodes::GUINodeController;
using tdme::gui::nodes::GUIParentNode;
using tdme::utilities::MutableString;
 
/**
 * GUI drop down controller
 * @author Andreas Drewke
 */
class tdme::gui::elements::GUIDropDownController final
    : public GUIElementController
{
    friend class GUIDropDown;
    friend class GUIDropDownOptionController;
 
private:
    STATIC_DLL_IMPEXT static string CONDITION_DISABLED;
    STATIC_DLL_IMPEXT static string CONDITION_ENABLED;
    STATIC_DLL_IMPEXT static string CONDITION_OPENED;
    STATIC_DLL_IMPEXT static string CONDITION_CLOSED;
    vector<GUIDropDownOptionController*> dropDownOptionControllers;
    bool open;
    bool disabled;
    GUIParentNode* dropDownContainerNode { nullptr };
    GUIElementNode* arrowNode { nullptr };
    GUIElementNode* textElementNode { nullptr };
    MutableString value;
    string search;
    int selectedDropDownOptionControllerIdx { -1 };
    int lastSelectedDropDownOptionControllerIdx { -1 };
 
private:
    // forbid class copy
    FORBID_CLASS_COPY(GUIDropDownController)
 
    /**
     * Private constructor
     * @param node node
     */
    GUIDropDownController(GUINode* node);
 
    /**
     * @return drop down open state
     */
    bool isOpen();
 
    /**
     * Unselect
     */
    void unselect();
 
    /**
     * Select by index
     * @param idx index
     */
    void select(int idx);
 
    /**
     * Select by option element node
     * @param selectedDropDownOptionElementNode selected drop down option element node
     */
    void select(GUIElementNode* selectedDropDownOptionElementNode);
 
    /**
     * Toggle open state
     */
    void toggleOpenState();
 
    /**
     * Determine drop down option controllers
     */
    void determineDropDownOptionControllers();
 
    /**
     * Select next node
     */
    void selectNext();
 
    /**
     * Select previous
     */
    void selectPrevious();
 
    /**
     * Select last
     */
    void selectLast();
 
    /**
     * Do search
     */
    void doSearch();
 
public:
    // overridden methods
    bool isDisabled() override;
    void setDisabled(bool disabled) override;
    void initialize() override;
    void dispose() override;
    void postLayout() override;
    void handleMouseEvent(GUINode* node, GUIMouseEvent* event) override;
    void handleKeyboardEvent(GUIKeyboardEvent* event) override;
    void tick() override;
    void onFocusGained() override;
    void onFocusLost() override;
    bool hasValue() override;
    const MutableString& getValue() override;
    void setValue(const MutableString& value) override;
    void onSubTreeChange() override;
 
};