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TagsWeekBarPlot.h

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// Author: Richard van Balen
#ifndef Impala_Application_TagsLife_TagsWeekBarPlot_h
#define Impala_Application_TagsLife_TagsWeekBarPlot_h

#ifndef OglGui_WindowView2D_h
#include "OglGui/WindowView2D.h"
#endif

#include "BarPlot.h"

namespace Impala {
namespace Application {
namespace TagsLife {

class TagsWeekBarPlot : public BarPlot
{
public:
    TagsWeekBarPlot(Window* parent, int x, int y, int w, int h) :
        BarPlot(parent, x, y, w, h)
    {
        Init(w,h);
    }

    virtual void DisplayFunc()
    {
        OGC oldOGC;
        OGCSave(&oldOGC);
        BarPlot::DisplayFunc();
        mDetailSensorWnd->SetDimensions(W(), mSlotSize);
        if (NrVisible() != 0)
        {
            SetSolidLineColor(mBarBorderColor);
            HandleDetailView();
        }
        OGCRestore(&oldOGC);
    }

    // Listener for the WindowView2D's and WeekSensorWnd
    virtual void
    WindowMouseEvent(OglGui::Window *src, int msg, int but, int state,
                     int x, int y, void *userData )
    {
        BarPlot::WindowMouseEvent(src, msg, but, state, x, y, userData);
        if (userData == (void*) WEEKWND_IDX)
                WeekWndMouseEvent(src, msg, x, y);
        if (userData == (void*) DETAILWND_IDX)
                DetailWndMouseEvent(src, msg, x, y);
    }

protected:

    // Show detail view if mouse in a view
    void DetailWndMouseEvent(Window* wnd, int msg, int x, int y)
    {
        if (msg == oglMouseMove && mRefIdx != (mFirstVisible + x / mSlotSize))
                msg = oglMouseEnter;
        if (msg == oglMouseEnter)
        {
            mDetailView->SetVisible(false);
            mRefIdx = mFirstVisible + x / mSlotSize;
                if(!mSlotSize || !mCache) return;
            OGLVIEW *v = mCache->GetViewFromCache(mSource->GetID(mRefIdx));
            if(v == 0 || v->im == 0) return;

            topX = AXIS_X+(mRefIdx-mFirstVisible+0.5)*mSlotSize-50;
            topY = -100;

            ILOG_DEBUG("Showing image of " << v->im->w << "x" << v->im->h << " at " << topX << "," << topY);

            ToTopWindow(this,topX,topY);
            mDetailView->SetDimensions(topX,topY,100,100);
            mDetailView->SetImage(v->im);
            mDetailView->SetVisible(true);
        }
        if (msg == oglMouseLeave)
            mDetailView->SetVisible(false);
    }

    // Show text representation of week nr in text balloon.
    void WeekWndMouseEvent(Window* wnd, int msg, int x, int y)
    {
        int   nrVis  = NrVisible();

        if (nrVis!=0 && (msg == oglMouseEnter || msg == oglMouseMove))
        {
            int topX = AXIS_X + x + 10;
            int topY = -30; // Fixed y position for text balloon

            ToTopWindow(this,topX,topY);
            mWeekText->SetDimensions(topX,topY,180,20);
            mWeekText->SetVisible(true);

            int idx = mFirstVisible + x / mSlotSize;
            int week = mSource->GetSortedIntData(mColumnX, idx);
            mWeekText->SetText(Tag::flickrWeekToString(week));
        }
        if (msg == oglMouseLeave)
            mWeekText->SetVisible(false);
    }

    // Draw 2 lines from view to detail view
    void HandleDetailView()
    {
        if (!mDetailView->GetVisible())
            return;

        DrawLine(AXIS_X+(mRefIdx-mFirstVisible)*mSlotSize,AXIS_Y,topX,0);
        DrawLine(AXIS_X+(mRefIdx-mFirstVisible+1)*mSlotSize,AXIS_Y,topX+100,0);
    }

private:
    void Init(int w, int h)
    {
        Window* topWnd = this;
        while(topWnd->GetParent())
            topWnd = topWnd->GetParent();
        mDetailView = new WindowView2D(topWnd,0,0,10,10,0);
        mDetailView->Texturing(false);

        mDetailView->SetVisible(false);

        mWeekSensorWnd = new Window(this,AXIS_X,0,w,AXIS_Y);
        mWeekSensorWnd->ConnectTo(this,OglGui::TOLEFTRIGHT);
        mWeekSensorWnd->SetWindowListener(this, WEEKWND_IDX);
        // Indicate that we want all mouse motion events
        mWeekSensorWnd->GetOGLWND()->allMouseMotion = 1;

        mDetailSensorWnd = new Window(this,AXIS_X,AXIS_Y,w,0);
        mDetailSensorWnd->ConnectTo(this,OglGui::TOLEFTRIGHT);
        mDetailSensorWnd->SetWindowListener(this, DETAILWND_IDX);
        // Indicate that we want all mouse motion events
        mDetailSensorWnd->GetOGLWND()->allMouseMotion = 1;

        mWeekText = new StaticText(topWnd,0,0,100,20,"");
        mWeekText->SetRoundness(20,20,20,20);
        mWeekText->SetBorderType(BEV_LINE);
        mWeekText->SetBorderFillShaded(2);
        mWeekText->SetVisible(false);
    }

    WindowView2D*                   mDetailView;
    int                                                         mRefIdx, topX, topY;

    Window*                         mWeekSensorWnd;
    Window*                         mDetailSensorWnd;
    StaticText*                     mWeekText;

    const static int WEEKWND_IDX   = 1;
    const static int DETAILWND_IDX = 2;

    ILOG_VAR_DEC;
};

ILOG_VAR_INIT(TagsWeekBarPlot, Application.TagsLife);

} // namespace TagsLife
} // namespace Application
} // namespace Impala

#endif

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