style.hpp

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#pragma once
#ifndef STYLE_HPP
#define STYLE_HPP

#include "settings.hpp"


class GeoObject;
class Stylesheet;
class StyleTemplate;

class Style
{
public:
    enum TextPosition {
        POSITION_LINE = 0,
        POSITION_CENTER,
        POSITION_NULL
    };
    enum LineCap {
        CAP_NONE = 0,
        CAP_ROUND,
        CAP_SQUARE
    };
    enum LineJoin {
        JOIN_MITER = 0,
        JOIN_BEVEL,
        JOIN_ROUND
    };
    enum ShieldShape {
        ROUNDED = 0,
        RECTANGULAR
    };
    enum FontWeight {
        WEIGHT_NORMAL = 0,
        WEIGHT_BOLD
    };
    enum FontStyle {
        STYLE_NORMAL = 0,
        STYLE_ITALIC
    };

    TESTABLE void overmerge(GeoObject* obj, const shared_ptr<StyleTemplate>& style);

    void finish(GeoObject* associatedObject, shared_ptr<const Stylesheet> stylesheet);

    Color color;
    Color fill_color;

    MaybeCachedString image;
    MaybeCachedString fill_image;

    float width;
    float casing_width;
    Color casing_color;

    MaybeCachedString text;
    TextPosition text_position;
    Color text_color;
    float text_offset;
    float font_size;
    MaybeCachedString font_family;
    FontWeight font_weight;
    FontStyle font_style;

    // The colour (hex or CSS) of the 'halo' or 'pull-out' used to make the text stand out from features underneath it
    Color text_halo_color;
    float text_halo_radius;

    LineCap linecap;
    LineJoin linejoin;
    LineCap casing_linecap;
    LineJoin casing_linejoin;

    MaybeCachedString icon_image;
    float icon_width;
    float icon_height;
    float icon_opacity;


    Color shield_color;
    // How transparent the shield is, from 0 (transparent) to 1 (opaque)
    float shield_opacity;
    Color shield_frame_color;
    // Width of the frame. If 0, no frame is rendered
    float shield_frame_width;
    Color shield_casing_color;
    float shield_casing_width;
    MaybeCachedString shield_text;
    MaybeCachedString shield_image;
    ShieldShape shield_shape;


    std::vector<double> dashes;
    std::vector<double> casing_dashes;

    int z_index;

    Style();
};

template<typename Stream>
Stream& operator >> (Stream& stream, Style::TextPosition& position)
{
    string expr;
    stream >> expr;

    if(expr == "line")
        position = Style::POSITION_LINE;
    else if(expr == "center")
        position = Style::POSITION_CENTER;

    return stream;
}

template<typename Stream>
Stream& operator >> (Stream& stream, Style::LineCap& cap)
{
    string expr;
    stream >> expr;

    if(expr == "round")
        cap = Style::CAP_ROUND;
    else if(expr == "square")
        cap = Style::CAP_SQUARE;

    return stream;
}

template<typename Stream>
Stream& operator >> (Stream& stream, Style::LineJoin& join)
{
    string expr;
    stream >> expr;

    if(expr == "bevel")
        join = Style::JOIN_BEVEL;
    else if(expr == "miter")
        join = Style::JOIN_MITER;
    else if(expr == "round")
        join = Style::JOIN_ROUND;

    return stream;
}

template<typename Stream>
Stream& operator >> (Stream& stream, Style::ShieldShape& shape)
{
    string expr;
    stream >> expr;

    if(expr == "rounded")
        shape = Style::ROUNDED;
    else if(expr == "rectangular")
        shape = Style::RECTANGULAR;

    return stream;
}

template<typename Stream>
Stream& operator >> (Stream& stream, Style::FontWeight& weight)
{
    string expr;
    stream >> expr;

    if(expr == "normal")
        weight = Style::WEIGHT_NORMAL;
    else if(expr == "bold")
        weight = Style::WEIGHT_BOLD;

    return stream;
}

template<typename Stream>
Stream& operator >> (Stream& stream, Style::FontStyle& style)
{
    string expr;
    stream >> expr;

    if(expr == "normal")
        style = Style::STYLE_NORMAL;
    else if(expr == "italic")
        style = Style::STYLE_ITALIC;

    return stream;
}

#endif