Set Z-position correctly for wxEVT_JOY_ZMOVE events.

Z-move events don't have (x, y) position, but they do have Z-position which
needs to be set.

Also don't use (x, y) position for these events in the sample.

See #748.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70279 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -475,6 +475,7 @@ MSW:
 - Fixed regression with initial focus in the dialogs in 2.9.3.
 - Added support for wxEXEC_MAKE_GROUP_LEADER to wxExecute (tteras).
 - Set wxMenu being closed in wxEVT_MENU_CLOSE events (Marcin Malich).
+- Fix coordinates and Z-position for joystick events (Markus Juergens).
 
 OSX:
 

interface/wx/event.h

@@ -1662,11 +1662,15 @@ public:
 
     /**
         Returns the x, y position of the joystick event.
+
+        These coordinates are valid for all the events except wxEVT_JOY_ZMOVE.
     */
     wxPoint GetPosition() const;
 
     /**
         Returns the z position of the joystick event.
+
+        This method can only be used for wxEVT_JOY_ZMOVE events.
     */
     int GetZPosition() const;
 

samples/joytest/joytest.cpp

@@ -119,35 +119,39 @@ MyCanvas::~MyCanvas()
 
 void MyCanvas::OnJoystickEvent(wxJoystickEvent& event)
 {
-    wxClientDC dc(this);
+    // We don't have valid (x, y) coordinates for z-move events.
-
+    if ( !event.IsZMove() )
-    wxPoint pt(event.GetPosition());
-
-    // if negative positions are possible then shift everything up
-    int xmin = wxGetApp().m_minX;
-    int xmax = wxGetApp().m_maxX;
-    int ymin = wxGetApp().m_minY;
-    int ymax = wxGetApp().m_maxY;
-    if (xmin < 0) {
-        xmax += abs(xmin);
-        pt.x += abs(xmin);
-    }
-    if (ymin < 0) {
-        ymax += abs(ymin);
-        pt.y += abs(ymin);
-    }
-
-    // Scale to canvas size
-    int cw, ch;
-    GetSize(&cw, &ch);
-
-    pt.x = (long) (((double)pt.x/(double)xmax) * cw);
-    pt.y = (long) (((double)pt.y/(double)ymax) * ch);
-
-    if (xpos > -1 && ypos > -1 && event.IsMove() && event.ButtonIsDown())
     {
-        dc.SetPen(*wxBLACK_PEN);
+        wxClientDC dc(this);
-        dc.DrawLine(xpos, ypos, pt.x, pt.y);
+
+        wxPoint pt(event.GetPosition());
+
+        // if negative positions are possible then shift everything up
+        int xmin = wxGetApp().m_minX;
+        int xmax = wxGetApp().m_maxX;
+        int ymin = wxGetApp().m_minY;
+        int ymax = wxGetApp().m_maxY;
+        if (xmin < 0) {
+            xmax += abs(xmin);
+            pt.x += abs(xmin);
+        }
+        if (ymin < 0) {
+            ymax += abs(ymin);
+            pt.y += abs(ymin);
+        }
+
+        // Scale to canvas size
+        int cw, ch;
+        GetSize(&cw, &ch);
+
+        pt.x = (long) (((double)pt.x/(double)xmax) * cw);
+        pt.y = (long) (((double)pt.y/(double)ymax) * ch);
+
+        if (xpos > -1 && ypos > -1 && event.IsMove() && event.ButtonIsDown())
+        {
+            dc.SetPen(*wxBLACK_PEN);
+            dc.DrawLine(xpos, ypos, pt.x, pt.y);
+        }
     }
 
     xpos = pt.x;
@@ -156,9 +160,9 @@ void MyCanvas::OnJoystickEvent(wxJoystickEvent& event)
 #if wxUSE_STATUSBAR
     wxString buf;
     if (event.ButtonDown())
-        buf.Printf(wxT("Joystick (%d, %d) #%i Fire!"), pt.x, pt.y, event.GetButtonChange());
+        buf.Printf(wxT("Joystick (%d, %d) #%i Fire!"), xpos, ypos, event.GetButtonChange());
     else
-        buf.Printf(wxT("Joystick (%d, %d)  "), pt.x, pt.y);
+        buf.Printf(wxT("Joystick (%d, %d)  "), xpos, ypos);
 
 /*
     for(int i = 0; i < nButtons; ++i)

src/msw/window.cpp

@@ -5950,7 +5950,10 @@ bool wxWindowMSW::HandleJoystickEvent(WXUINT msg, int x, int y, WXUINT flags)
     }
 
     wxJoystickEvent event(eventType, buttons, joystick, change);
-    event.SetPosition(wxPoint(x, y));
+    if ( eventType == wxEVT_JOY_ZMOVE )
+        event.SetZPosition(x);
+    else
+        event.SetPosition(wxPoint(x, y));
     event.SetEventObject(this);
 
     return HandleWindowEvent(event);