Impala Documentation

virtual void Impala::Visualization::ImageSet::MouseFunc	(	int	msg,
		int	but,
		int	state,
		int	x,
		int	y
	)			`[inline, virtual]`

This function is called by the event handling system everytime the user has moved or clicked the mouse.

So if you want a window which reacts to the mouse in a specific way, you can inherit a class from Window. Another method to implement mouse behaviour is to use a window listener (in this case you have to inherit a class from WindowListener and attach it to this window, see WindowListener for more details)

Reimplemented from Impala::Visualization::ImagesWindow.

Definition at line 253 of file ImageSet.h.

References OglGui::ScrollBar::ChangePos(), OglGui::ImagesListener::ImageSelectionEvent(), mAllowDragging, mDragImId, mDragInsertId, mDragViewNr, mDragX, mDragY, mFirstVisY, Impala::Visualization::ImagesWindow::mImages, Impala::Visualization::ImagesWindow::mImagesListener, Impala::Visualization::ImagesWindow::mImagesListenerData, mImSelected, mImSteps, mNrVisibleX, mNrVisibleY, OglGui::OglWindow::mOglWnd, OglGui::Window::MouseFunc(), Impala::Visualization::ImagesWindow::MoveImageTo(), mPropagateScrolling, mScrollBar, Impala::Visualization::ImagesWindow::mViewHeight, Redraw(), SetImageSelected(), OglGui::RepeatTimer::StartRepeatTime(), and Impala::Visualization::ImagesWindow::UpdateViewWithImage().

00254     {
00255         Window::MouseFunc(msg, but, state, x, y); // skip ImagesWindow
00256 
00257         if (msg == oglMouseWheelUp)
00258             mScrollBar->ChangePos((state&oglShift) ? -5 : -1);
00259         if (msg == oglMouseWheelDown)
00260             mScrollBar->ChangePos((state&oglShift) ? 5 : 1);
00261 
00262         // todo : use ViewListener
00263         if (mImagesListener && (msg==oglMouseDown) && (but==oglLeftButton)) 
00264         {
00265             View* view = FindView(x, y);
00266             if (view)
00267             {
00268                 int imIdx = mFirstVisY * mNrVisibleX + GetViewIdx(view);
00269                 SetImageSelected(imIdx);
00270                 int orgIdx = mImages[imIdx]->Idx();
00271                 mImagesListener->ImageSelectionEvent(this, orgIdx,
00272                                                      mImagesListenerData);
00273             } 
00274         }
00275 
00276         if (mAllowDragging && msg==oglMouseDown && but==oglRightButton)
00277         {
00278             View* dragView = FindView(x, y);
00279             if (dragView)
00280             {
00281                 mDragX = x;
00282                 mDragY = y;
00283                 mDragImId = mFirstVisY * mNrVisibleX + GetViewIdx(dragView);
00284                 mDragViewNr = NrViewers();
00285                 if (mDragViewNr > mNrVisibleX * mNrVisibleY)
00286                     mDragViewNr = mNrVisibleX * mNrVisibleY;
00287                 UpdateViewWithImage(mDragViewNr, mDragImId);
00288                 StartRepeatTime();
00289                 oglSys.SetAlwaysDraw(mOglWnd, 1);
00290             }
00291         }
00292         if (mAllowDragging && msg==oglMouseMove && (state & oglRightButton))
00293         {
00294             mDragX = x;
00295             mDragY = y;
00296 
00297             if (mDragY >= mOglWnd->height - mViewHeight/4)
00298             {
00299                 mDragY = mOglWnd->height - mViewHeight/4; 
00300                 mPropagateScrolling = y > mOglWnd->height ? -mImSteps : -1;
00301             }
00302             else if (mDragY <= mViewHeight/4)
00303             {
00304                 mDragY = mViewHeight/4;
00305                 mPropagateScrolling = y < 0 ? mImSteps : 1;
00306             }
00307             else
00308                 mPropagateScrolling = 0;
00309 
00310         }
00311         if (msg==oglMouseUp && but==oglRightButton && mDragImId != -1)
00312         {
00313             if (mDragInsertId != -1)
00314             {
00315                 MoveImageTo(mDragImId, mDragInsertId);
00316                 if (mDragImId == mImSelected)
00317                     mImSelected = mDragImId < mDragInsertId ? mDragInsertId-1
00318                                                             : mDragInsertId;
00319             }
00320             mDragImId = -1;
00321             SetViewVisible(mDragViewNr, false);
00322             mDragViewNr = -1;
00323             Redraw();
00324             oglSys.SetAlwaysDraw(mOglWnd, 0);
00325         }
00326 
00327     }

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