#pragma once
class Button;
class Tesselator;

class ScrolledSelectionList {
private:
    static const int NO_DRAG = -1;
    static const int DRAG_OUTSIDE = -2;

    Minecraft* minecraft;
    int width;
    int height;

protected:
    int y0;
    int y1;

private:
    int x1;
    int x0;

protected:
    int itemHeight;

private:
    int upId;
    int downId;

    float yDrag;
    float yDragScale;
    float yo;

    int lastSelection;
    __int64 lastSelectionTime;

    bool renderSelection;
    bool _renderHeader;
    int headerHeight;

public:
    ScrolledSelectionList(Minecraft* minecraft, int width, int height, int y0,
                          int y1, int itemHeight);
    void setRenderSelection(bool renderSelection);

protected:
    void setRenderHeader(bool renderHeader, int headerHeight);
    virtual int getNumberOfItems() = 0;
    virtual void selectItem(int item, bool doubleClick) = 0;
    virtual bool isSelectedItem(int item) = 0;
    virtual int getMaxPosition();
    virtual void renderBackground() = 0;
    virtual void renderItem(int i, int x, int y, int h, Tesselator* t) = 0;
    void renderHeader(int x, int y, Tesselator* t);
    void clickedHeader(int headerMouseX, int headerMouseY);
    void renderDecorations(int mouseX, int mouseY);

public:
    int getItemAtPosition(int x, int y);
    void init(std::vector<Button*>* buttons, int upButtonId, int downButtonId);

private:
    void capYPosition();

public:
    void buttonClicked(Button* button);
    void render(int xm, int ym, float a);

private:
    void renderHoleBackground(int y0, int y1, int a0, int a1);
};