persimmon/pm_numerical.h

/*
 * File      : pm_numerical.h
 * COPYRIGHT (C) 2012-2017, Shanghai Real-Thread Technology Co., Ltd
 *
 * Change Logs:
 * Date           Author       Notes
 * 2017-11-05     realthread   the first version
 */

#pragma once

#include <vector>
#include <pm_widget.h>
#include <pm_image.h>
#include "resource.h"

namespace Persimmon
{

class Numerical : public Widget
{
public:
    enum NUM_ALIGN      //对齐方式，默认纵向居中，横向有靠左，靠右，居中
    {
        ALIGN_LEFT = 0x00,
        ALIGN_RIGHT = 0x01,
        ALIGN_CENTER = 0x02,
    };

    Numerical(const Rect& rect);
    virtual ~Numerical();

    void addImgPath(const char *img)    //添加数字图片对应路径，从0 - 9 按顺序添加
    {
        imgPath.push_back(rt_strdup(img));
    }
    
    void setNumWidth(int width)     //设置数字图片，所占宽度
    {
        numWidth = width;
    }

    void setDigit(int digit)    //设置数值位数显示，高位填0
    {
        this->digit = digit;
    }

    void setNumericalUnit(Image *image)     //设置单位显示
    {
        if (unit)
            delete unit;

        unit = image;
    }

    void setNumericalMinus(Image *image)    //设置支持显示负号
    {
        if (minus)
            delete minus;

        minus = image;
    }

    void setNumAlign(enum NUM_ALIGN algn = ALIGN_CENTER)    //设置对齐方式
    {
        numAlgn = algn;
    }
    
    void setNumerical(int value)    //设置显示数值
    {
        numerical = value;
    }

    virtual void render(struct rtgui_dc* dc, const Point &dcPoint = Point(),
                        const Rect &srcRect = Rect(),
                        RenderFlag flags = DrawNormal);

private:
    enum NUM_ALIGN numAlgn;
    std::vector<char *> imgPath;
    Image *unit, *minus;
    int numerical, numWidth, digit;
};

}