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TableCell.h

Go to the documentation of this file.

#ifndef VideoExcel_TableCell_h
#define VideoExcel_TableCell_h

#include "TableDataSource.h"
#include "TableViewCache.h"

#ifndef OglGui_StaticText_h
#include "OglGui/StaticText.h"
#endif

namespace Impala {
namespace Application {
namespace VideoExcel {

class TableCell : public OglGui::Window
{
public:
    typedef OglGui::Window                          Window;
    typedef OglGui::StaticText                      StaticText;

    TableCell(Window *parent, TableDataSource *source, TableViewCache *cache,
              String column) :
        Window(parent, 0, 0, parent->W(), 20)
    {
        Init(parent, source, cache, column);
    }

    void UpdateRow(int y, int row, int displaymode = DISPLAY_NOCHANGE,
                   int dispattr = NONE)
    {
        SetDimensions(0,mParent->H()-y,mParent->W(),mSource->GetRowHeight(row));
        SetVisible(true);
        //SetBorderType(2);

        if (displaymode!=DISPLAY_NOCHANGE && displaymode!=mCurrentDisplayMode)
        {
            mCurrentDisplayMode = displaymode;
            mDisplayAsText->SetVisible(mCurrentDisplayMode == DISPLAY_TEXT);
            mDisplayAsDot ->SetVisible(mCurrentDisplayMode == DISPLAY_DOT);
        }

        String txt;
        double dVal;
        switch (mCurrentDisplayMode)
        {
            case DISPLAY_TEXT:
                txt = mSource->GetSortedTextData(mColumn, row);
                mDisplayAsText->SetText(txt);
                break;
            case DISPLAY_DOT:
                dVal = mSource->GetSortedNormalizedData(mColumn, row);
                mDisplayAsDot->SetBackground(Gradient(dVal, dispattr));
                break;
            case DISPLAY_IMAGE:
                mViewCache->ShowView(mColumn, row, 0,mParent->H() - y,W(),H());
                break;
            case DISPLAY_FILLED:
                dVal = mSource->GetSortedNormalizedData(mColumn, row);
                mFillBgColor = Gradient(dVal, dispattr);
                break;
        }
    }

    virtual void DisplayFunc()
    {
        if (mCurrentDisplayMode == DISPLAY_FILLED)
        {
            OGC     myOGC;
            INT     oldBlendInfo[3];
            OGCSave(&myOGC);
            oglSys.StartBlend( &oldBlendInfo[0] );
            SetSolidFillColor(mFillBgColor);
            FillRectangle(1, 1, W(), H()-1);
            oglSys.EndBlend( &oldBlendInfo[0] );
            OGCRestore(&myOGC);
        }
        Window::DisplayFunc();
    }

private:

    int Gradient(double val, int grtype = GRADIENT_REDFADE)
    {
        int r=0,g=0,b=0, a=255;
        if (grtype == NONE) grtype = GRADIENT_BLACKFADE;
        switch (grtype)
        {
            case GRADIENT_BLACKFADE:
                a = val * 256;
                r = g = b = 0;
                break;
            case GRADIENT_REDFADE:
                a = val * 256;
                r = 128;
                break;
            case GRADIENT_GREENFADE:
                a = val * 256;
                g = 128;
                break;
            case GRADIENT_BLUEFADE:
                a = val * 256;
                b = 128;
                break;
        }
        if (a>255) a = 255;
        if (r>255) r = 255;
        if (g>255) g = 255;
        if (b>255) b = 255;
        return ARGB2COLOR(a,r,g,b);
    }

    void Init(Window *parent, TableDataSource *source, TableViewCache *cache,
              String column)
    {
        mParent             = parent;
        mSource             = source;
        mColumn             = column;
        mViewCache          = cache;
        mFillBgColor        = 0;
        mCurrentDisplayMode = DISPLAY_TEXT;
        ConnectTo(parent, OglGui::L2L|OglGui::R2R);
        SetVisible(false);

        mDisplayAsText = new StaticText(this, 0, 0, W(), H(), "");
        mDisplayAsText->ConnectTo(this);
        mDisplayAsText->SetVisible(true);
        mDisplayAsText->SetCentered(false);

        // 1, 1, W()-2, H()-2);
        mDisplayAsDot = new Window(this, W() / 2 - 4, H() / 2 - 4, 8, 8); 
        mDisplayAsDot->ScaleTo(this);
        mDisplayAsDot->SetVisible(false);

        oglSys.SetNoMouseInput(mDisplayAsText->GetOGLWND(),1);
        oglSys.SetNoMouseInput(mDisplayAsDot->GetOGLWND(),1);
    }


    unsigned long       mFillBgColor;
    int                 mCurrentDisplayMode;

    String              mColumn;

    TableDataSource*    mSource;
    TableViewCache*     mViewCache;

    Window*             mParent;
    Window*             mDisplayAsDot;
    StaticText*         mDisplayAsText;

public:
    static const int DISPLAY_NOCHANGE       = 0;
    static const int DISPLAY_TEXT           = 1;
    static const int DISPLAY_DOT            = 2;
    static const int DISPLAY_IMAGE          = 3;
    static const int DISPLAY_FILLED         = 4;

    static const int NONE                   = 0;
    static const int GRADIENT_REDFADE       = 1;
    static const int GRADIENT_GREENFADE     = 2;
    static const int GRADIENT_BLUEFADE      = 3;
    static const int GRADIENT_BLACKFADE     = 4;
};

} // namespace VideoExcel
} // namespace Application
} // namespace Impala

#endif // TableCell_h

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