Impala Documentation

virtual void OglGui::ViewerPointCloudNavigator::MouseFunc	(	int	msg,
		int	btn,
		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 OglGui::Window.

Definition at line 109 of file ViewerPointCloudNavigator.h.

References OglGui::OglWindow::H(), mMaxX, mMaxY, mMinX, mMinY, OglGui::Window::MouseFunc(), mViewerPointCloud, OglGui::ViewerPointCloud::Scale(), OglGui::ViewerPointCloud::SetPtDocXY(), ToViewerPointCloudMouse(), and OglGui::OglWindow::W().

00110     {
00111         static bool isDragging = false;
00112         static int  lastX;
00113 
00114         Window::MouseFunc(msg, btn, state, x, y);
00115         if (msg == oglMouseDown && btn == oglRightButton)
00116         {
00117             isDragging = true;
00118             lastX = x;
00119         }
00120 
00121         if (msg == oglMouseUp)
00122             isDragging = false;
00123 
00124         if (!isDragging)
00125         {
00126             ToViewerPointCloudMouse(msg, btn, state, x, y);
00127             return;
00128         }
00129 
00130         if (state&oglShift)
00131         {
00132             float scale = mViewerPointCloud->Scale();
00133             mViewerPointCloud->Scale(scale * (1.f+((x - lastX)/50.f)));
00134         }
00135         else
00136         {
00137             float   vpcW = mViewerPointCloud->W();
00138             float   vpcH = mViewerPointCloud->H();
00139             float   xFact = x / (float) W();
00140             float   yFact = y / (float) H();
00141             float   pX = (vpcW/2) - (mMinX+(xFact * (mMaxX-mMinX)));
00142             float   pY = (vpcH/2) - (mMinY+(yFact * (mMaxY-mMinY)));
00143             mViewerPointCloud->SetPtDocXY(pX, pY);
00144         }
00145         lastX = x;
00146     }

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