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ViewWithRect.h

Go to the documentation of this file.

#ifndef Impala_Visualization_ViewWithRect_h
#define Impala_Visualization_ViewWithRect_h

#include "Visualization/View.h"
#include "Core/Geometry/Rectangle.h"

namespace Impala
{
namespace Visualization
{


class ViewWithRect : public View
{
public:
    typedef Core::Geometry::Rectangle Rectangle;

    // 2d view
    ViewWithRect(OGLWND* oglWnd, int x, int y, int imW, int imH,
                 double scale, bool texturing, bool noTexScaling,
                 bool keepDispImage, OglGui::ViewListener* listener = 0) :
        View(oglWnd, x, y, imW, imH, scale, texturing, noTexScaling,
             keepDispImage, listener)
    {
    }

    void
    SetRect(Rectangle r)
    {
        mRect = r;
        mRect.CheckSize();
    }

    Rectangle
    GetRect()
    {
        return mRect;
    }

    virtual void
    OnDrawView()
    {
        if (!mRect.Valid())
            return;

        OGLIMAGE* oglIm = GetOGLIMAGE();
        if (!oglIm)
            return;

        OGC ogc;
        OGCSave(&ogc);
        glPushMatrix();

        viewSys.View2DImageTransform(GetOGLVIEW2D());
        SetSolidLineColor(oglRED);
        SetLineWidth(1);
        DrawRectangle(mRect.mLeft, oglIm->h - mRect.mTop - mRect.Height(),
                      mRect.Width(), mRect.Height());

        glPopMatrix();
        OGCRestore(&ogc);

        OglGui::View::OnDrawView();
    }

    virtual void
    OnMouse(int msg, int btn, int state, int x, int y)
    {
        std::cout << "MOUSE" << std::endl;
        // allow Visualization::View to set the DragRect
        Visualization::View::OnMouse(msg, btn, state, x, y);
        mRect = GetPointerDragRect();
        // make sure listeners receive the latest DragRect
        OglGui::View::OnMouse(msg, btn, state, x, y);
    }

private:

    // rectangle is in image coordinates so view should contain an image!
    Rectangle mRect;

};

} // namespace Visualization
} // namespace Impala

#endif

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