#include <MouseHandler.h>

Inheritance diagram for icl::qt::MouseHandler:

Public Types
typedef void(*	mouse_handler )(const MouseEvent &event)
	mouse_handler function type
Public Slots
void	handleEvent (const MouseEvent &event)
	connected to the ICLWidget's signal mouseEventOccured
Public Member Functions
	MouseHandler (mouse_handler handler)
	Create a mouse handler with given callback function.
virtual void	process (const MouseEvent &event)
	this function is called automatically when the handleEvent slot is invoked
Protected Member Functions
	MouseHandler ()
	This constructor can be called from derived classes.
Private Attributes
mouse_handler	m_handler
	internal mouse handler function
Friends
class	ICLWidget
	ICLWidget is allowed to connect to the private slot handleEvent.

Detailed Description

MouseEvent Handler.

Here's a short example:

        #include <ICLQt/Common.h>
        #include <iterator>
        
        GenericGrabber *grabber;
        ICLWidget *widget;
        
        class Mouse : public MouseHandler{
          public:
          virtual void process(const MouseEvent &event){
            std::cout << "image location: " << event.getPos() << std::endl;    
            std::cout << "widget location: " << event.getWidgetPos() << std::endl;
        
            std::string eventNames[] = {"MoveEvent","DragEvent","PressEvent","ReleaseEvent", "EnterEvent","LeaveEvent"};
            std::cout << "type: " << eventNames[event.getType()] << std::endl;
      
            if(event.isPressEvent()){
              if(event.getColor().size()){
                std::cout << "color:";
                std::copy(event.getColor().begin(),event.getColor().end(),std::ostream_iterator<icl64f>(std::cout,","));
                std::cout << endl;
              }else{
                std::cout << "no color here!" << std::endl;
              }
            }
          } 
        } mouse;

        void init(){
          widget = new ICLWidget(0);
          widget->setGeometry(200,200,640,480);
          widget->show();
          grabber = new GenericGrabber;
          widget->install(&mouse);
        }  
        void run(){
          widget->setImage(grabber->grab());
          widget->update();
        }

        int main(int n, char **ppc){
          return ICLApp(n,ppc,"",init,run).exec();
        }

Member Typedef Documentation

typedef void(* icl::qt::MouseHandler::mouse_handler)(const MouseEvent &event)

mouse_handler function type

Constructor & Destructor Documentation

icl::qt::MouseHandler::MouseHandler ( mouse_handler handler ) [inline, explicit]

Create a mouse handler with given callback function.

In most cases a MouseHandler can be used directly by passing a mouse_handler function to it's constructor. The mouse handler function is called by virtual void process automatically

icl::qt::MouseHandler::MouseHandler ( ) [inline, protected]

This constructor can be called from derived classes.

derived classes will reimplement virtual void process(const MouseEvent &event), so in this case, no external mouse_handler function needs to be passed

Member Function Documentation

void icl::qt::MouseHandler::handleEvent ( const MouseEvent & event ) [slot]

connected to the ICLWidget's signal mouseEventOccured

virtual void icl::qt::MouseHandler::process ( const MouseEvent & event ) [virtual]

this function is called automatically when the handleEvent slot is invoked

It can be reimplemented for custom mouse interaction. If a mouse handling function is enough for your purpose, you can also pass a function of type mouse_handler to the constructor of a MouseHandler instance. The default implementation of process calls the handler function if it's not null.

Reimplemented in icl::geom::SceneMouseHandler, icl::qt::DefineRectanglesMouseHandler, icl::qt::DragRectangleMouseHandler, and icl::qt::DefineQuadrangleMouseHandler.

Friends And Related Function Documentation

friend class ICLWidget [friend]

ICLWidget is allowed to connect to the private slot handleEvent.

Member Data Documentation

mouse_handler icl::qt::MouseHandler::m_handler [private]

internal mouse handler function

The documentation for this class was generated from the following file:

/home/jenkins/workspace/icl-manual-trunk/icl-manual/ICLQt/src/ICLQt/MouseHandler.h

Public Types

Public Slots

Public Member Functions

Protected Member Functions