VersionGraph.h

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// ###########################################################################################################################################################################################################################################################################################################################
 
#pragma once
 
// OpenTwin header
#include "OTGui/VersionGraphCfg.h"
#include "OTWidgets/GraphicsView.h"
 
namespace ot {
 
    class VersionGraphItem;
 
    class OT_WIDGETS_API_EXPORT VersionGraph : public GraphicsView {
        Q_OBJECT
    public:
        enum VersionGraphConfig {
            NoConfigFlags                     = 0 << 0, 
            IgnoreActivateRequestOnReadOnly   = 1 << 0, 
            IgnoreSelectionHandlingOnReadOnly = 1 << 1  
        };
        typedef Flags<VersionGraphConfig> VersionGraphConfigFlags;
 
        VersionGraph();
        virtual ~VersionGraph();
 
        void setupFromConfig(const VersionGraphCfg& _config);
        
        void clear(void);
 
        bool isCurrentVersionEndOfBranch(void) const;
        bool isVersionIsEndOfBranch(const std::string& _versionName) const;
 
        void setVersionGraphConfig(VersionGraphConfig _config, bool _active = true) { m_configFlags.setFlag(_config, _active); };
        void setVersionGraphConfigFlags(const VersionGraphConfigFlags& _flags) { m_configFlags = _flags; };
        const VersionGraphConfigFlags& getVersionGraphConfigFlags(void) const { return m_configFlags; };
 
    Q_SIGNALS:
        void versionDeselected(void);
        void versionSelected(const std::string& _versionName);
        void versionActivateRequest(const std::string& _versionName);
 
    public Q_SLOTS:
        void slotSelectionChanged(void);
        void slotCenterOnActiveVersion(void);
        void slotGraphicsItemDoubleClicked(const ot::GraphicsItem* _item);
        
    protected:
        virtual void showEvent(QShowEvent* _event) override;
        virtual void paintEvent(QPaintEvent* _event) override;
 
    private:
        void updateVersionPositions(void);
        QRectF calculateFittedViewportRect(void) const;
        VersionGraphItem* getVersion(const std::string& _name) const;
        void highlightVersion(const std::string& _name);
 
        bool m_updateItemPositionRequired;
        QRectF m_lastViewportRect;
        std::string m_activeVersion;
        std::string m_activeVersionBranch;
        VersionGraphItem* m_rootItem;
        VersionGraphConfigFlags m_configFlags;
    };
 
}
 
OT_ADD_FLAG_FUNCTIONS(ot::VersionGraph::VersionGraphConfig)