Mouse-events for further use

[Mr. W.]

Hello!

I would like to use further functionality in some event-functions used by wxMathplot.

So I implemented an event-table in my own class:

BEGIN_EVENT_TABLE(MyClass, wxFrame)
    EVT_MENU(ID_QUIT, MyClass::OnQuit)
    EVT_MENU(ID_PRINT_PREVIEW, MyClass::OnPrintPreview)
    EVT_MENU(ID_PRINT, MyClass::OnPrint)
    EVT_MOUSE_EVENTS(MyClass::OnMouseLeftDown)
END_EVENT_TABLE()

MyClass::MyClass() : wxFrame( (wxFrame *)NULL, -1, wxT("MyClass"), wxDefaultPosition, wxSize(500,500))
{
m_plot = new mpWindow(this, -1, wxPoint(0,0), wxSize(100,100), wxSUNKEN_BORDER);
}

But when I create a plot with wxMathplot and clicked the mousebutton, the event doesn't reach my event-function.

I hope you can tell me, how I have to implement my event-table to use the events forwarted by mathplot with event.Skip().

Greetings and thx for any help

[Nigel Paton]

Hi,

Not sure why this wouldn't work but then I'm no expert on wx event handling.

When adding some extras to the mathplot code I've sometimes created a new class with mpWindow as it's base class and then put the event table in the new class.

class MyMpClass : public mpWindow
{
public:
    MyMpClass(wxWindow *parent, wxWindowID id,
                const wxPoint &pos = wxDefaultPosition,
                const wxSize &size = wxDefaultSize,
                int flags = 0) : mpWindow(parent, id, pos, size, flags) {}

    void OnMouseLeftDown (wxMouseEvent     &event);

    DECLARE_EVENT_TABLE()
}

void MyMpClass::OnMouseLeftDown (wxMouseEvent     &event)
{
    // Do stuff
    event.Skip();
}

BEGIN_EVENT_TABLE(MyMpClass, mpWindow)
EVT_LEFT_DOWN(MyMpClass::OnMouseLeftDown)
END_EVENT_TABLE()

m_plot = new MyMpClass(this, -1, wxPoint(0,0), wxSize(100,100), wxSUNKEN_BORDER);

Note I've also used EVT_LEFT_DOWN rather than the more general EVT_MOUSE_EVENTS.

Cheers

[Mr. W.]

Hi!

I will remember your solution, but I'm loath to change or add something to the mathplot-library.

Cheers

[Nigel Paton]

Hi,

It's not changing the mathplot lib as this code would sit in your files. It's just allowing you to intercept the events and possibly modifying/blocking the handling.

Cheers

[cdron77]

Maybe you're not intercepting the right event. Try with EVT_LEFT_DOWN for mouse left button.

Anyway, I'm not sure that all mouse events of wxMathPlot are skipped: mouse left down is, but I did not checked all.

I hope this is helpful.

CD-RON77

[Mr. W.]

Hi!

Thanks for the fast answer.

I tried nearly all mouse-events, also EVT_LEFT_DOWN, EVT_LEFT_DCLICK and so on. But no event occurs on my event-function.
Furthermore I tested an EVT_CHAR-event. This is not used by wxMathplot, but its the same.

Greetings