Common structures and data types

Below are the common structures and types used in the framework

color

A type for storing color, defined as follows: typedef unsigned long color;

Has the following helpers:

• color make_color(unsigned char red, unsigned char green, unsigned char blue)
• unsigned char get_red(color rgb)
• unsigned char get_green(color rgb)
• unsigned char get_blue(color rgb)

font

Structure containing font parameters

enum class decorations : uint32_t
{
    normal = 0,
    bold = (1 << 0),
    italic = (1 << 1),
    underline = (1 << 2),
    strike_out = (1 << 3)
};

struct font
{
    std::string name;
    int32_t size;
    decorations decorations_;
};

• name - name of the system font, e.g. sans
• `size - the size of the font in pixels
• `decorations - bitmask defining font layout variants

rect

Structure, to transfer coordinates and simplify work with them

struct rect
{
    int32_t left, top, right, bottom;

    inline bool operator==(const rect &lv);
    inline bool operator>(const rect &lv);
    inline rect operator+(const rect &lv);

    inline bool in(int32_t x, int32_t y) const;
    inline bool in(const rect &outer) const;

    inline bool is_null() const;

    inline int32_t width() const;
    inline int32_t height() const;

    inline void move(int32_t x, int32_t y);
    inline void put(int32_t x, int32_t y);
};

• `left, top, right, bottom - coordinates relative to the upper left corner of the window
• operator==, operator>, operator+ - operators
• in(int32_t x, int32_t y) - determines whether a point is included in the coordinate area or not.
• `in(const rect &outer) - determines whether the coordinates are included in the outer coordinate area
• is_null() - determines if the coordinates are set (true if all are null)
• width(), height() - width and height
• move(int32_t x, int32_t y) - shifts coordinates by x and y
• put(int32_t x, int32_t y) - sets left and top to x and y