GfxStringListBox.h

#pragma once

#include <Arduino.h>
#include <stdint.h>
#include "GfxItem.h"

class GfxStringListBox : public GfxItem {
public:
    const static uint8_t MaxItems = 10;

public:
    GfxStringListBox(uint16_t width);
    ~GfxStringListBox();

    int16_t add(const String s);

    bool remove(const uint8_t idx, bool compactAfter=true);

    void draw(uint16_t xOffset=0, uint16_t yOffset=0);
    uint16_t width();
    uint16_t height();

    int16_t find(const String s, uint8_t n=1);

    bool select(int16_t idx);

    int16_t selected();

    uint8_t scrollDown(uint8_t rows);

    uint8_t scrollUp(uint8_t rows);

    bool scrollTo(uint8_t idx);

protected:
    int16_t findGap(uint8_t startAt=0);

    int16_t findNext(uint8_t from=0);

    int16_t findPreceding(uint8_t from=MaxItems);

    // TODO: void sort();

    bool isCompacted();

    void compact();

    bool isOnScreen(uint8_t idx);

    uint8_t rowsFrom(uint8_t idx);


protected:
    String *_items[MaxItems];
    uint16_t _width;
    uint16_t _lineHeight;
    int16_t _selected;
    uint8_t _screenLines;
    uint8_t _screenStart;
    // TODO: uint8_t _frameSize; uint8_t _frameStart;

};