WtNodeStyle.h

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#pragma once
 
#include <Wt/WColor.h>
#include <Wt/WLogger.h>
 
#include <fstream>
#include <sstream>
#include <string>
#include <vector>
#include <random>
 
#include "Platform.h"
#include "json.hpp"
 
class Style
{
public:
    virtual ~Style() = default;
 
private:
    virtual void loadJsonText(std::string jsonText) = 0;
 
    virtual void loadJsonFile(std::string fileName) = 0;
 
    virtual void loadJsonFromByteArray(std::string const& jsonData) = 0;
};
 
class WtNodeStyle : public Style
{
public:
    WtNodeStyle();
 
    WtNodeStyle(std::string jsonText);
 
public:
    static void setNodeStyle(std::string jsonText);
 
private:
    void loadJsonText(std::string jsonText) override;
 
    void loadJsonFile(std::string fileName) override;
 
    void loadJsonFromByteArray(std::string const& jsonData) override;
 
public:
    Wt::WColor NormalBoundaryColor;
    Wt::WColor SelectedBoundaryColor;
    Wt::WColor SelectedDragColor;
    Wt::WColor GradientColor0;
    Wt::WColor GradientColor1;
    Wt::WColor GradientColor2;
    Wt::WColor GradientColor3;
    Wt::WColor ShadowColor;
    Wt::WColor FontColor;
    Wt::WColor FontColorFaded;
 
    Wt::WColor HotKeyColor0;
    Wt::WColor HotKeyColor1;
    Wt::WColor HotKeyColor2;
 
    Wt::WColor ConnectionPointColor;
    Wt::WColor FilledConnectionPointColor;
 
    Wt::WColor WarningColor;
    Wt::WColor ErrorColor;
 
    float PenWidth;
    float HoveredPenWidth;
 
    float ConnectionPointDiameter;
 
    float Opacity;
};
 
class WtConnectionStyle : public Style
{
public:
    WtConnectionStyle();
 
    WtConnectionStyle(std::string jsonText);
 
public:
    Wt::WColor fromHSL(int h, int s, int l) const;
 
    static void setConnectionStyle(std::string jsonText);
 
    Wt::WColor constructionColor() const;
 
    Wt::WColor normalColor() const;
 
    Wt::WColor normalColor(std::string typeId) const;
 
    Wt::WColor selectedColor() const;
 
    Wt::WColor selectedHaloColor() const;
 
    Wt::WColor hoveredColor() const;
 
    float lineWidth() const;
 
    float constructionLineWidth() const;
 
    float pointDiameter() const;
 
    bool useDataDefinedColors() const;
 
private:
    void loadJsonText(std::string jsonText) override;
 
    void loadJsonFile(std::string fileName) override;
 
    void loadJsonFromByteArray(std::string const& jsonData) override;
 
private:
 
    Wt::WColor ConstructionColor;
    Wt::WColor NormalColor;
    Wt::WColor SelectedColor;
    Wt::WColor SelectedHaloColor;
    Wt::WColor HoveredColor;
 
    float LineWidth;
    float ConstructionLineWidth;
    float PointDiameter;
 
    bool UseDataDefinedColors;
};
 
class WtFlowViewStyle : public Style
{
public:
    WtFlowViewStyle();
 
    WtFlowViewStyle(std::string jsonText);
 
public:
    static void setStyle(std::string jsonText);
 
private:
    void loadJsonText(std::string jsonText) override;
 
    void loadJsonFile(std::string fileName) override;
 
    void loadJsonFromByteArray(std::string const& jsonData) override;
 
public:
    Wt::WColor BackgroundColor;
    Wt::WColor FineGridColor;
    Wt::WColor CoarseGridColor;
};
 
class WtStyleCollection
{
public:
    static WtNodeStyle const& nodeStyle();
 
    static WtConnectionStyle const& connectionStyle();
 
    static WtFlowViewStyle const& flowViewStyle();
 
public:
    static void setNodeStyle(WtNodeStyle);
 
    static void setConnectionStyle(WtConnectionStyle);
 
    static void setFlowViewStyle(WtFlowViewStyle);
 
private:
    WtStyleCollection() = default;
 
    WtStyleCollection(WtStyleCollection const&) = delete;
 
    WtStyleCollection& operator=(WtStyleCollection const&) = delete;
 
    static WtStyleCollection& instance();
 
private:
    WtNodeStyle _nodeStyle;
    WtConnectionStyle _connectionStyle;
    WtFlowViewStyle _flowViewStyle;
};