+// ----------------------------------------------------------------------------
+// interactive manipulation
+// ----------------------------------------------------------------------------
+
+#define wxINTERACTIVE_RESIZE_DIR \
+ (wxINTERACTIVE_RESIZE_W | wxINTERACTIVE_RESIZE_E | \
+ wxINTERACTIVE_RESIZE_S | wxINTERACTIVE_RESIZE_N)
+
+struct wxInteractiveMoveData
+{
+ wxTopLevelWindowBase *m_window;
+ wxEventLoop *m_evtLoop;
+ int m_flags;
+ wxRect m_rect;
+ wxRect m_rectOrig;
+ wxPoint m_pos;
+ wxSize m_minSize, m_maxSize;
+};
+
+class wxInteractiveMoveHandler : public wxEvtHandler
+{
+public:
+ wxInteractiveMoveHandler(wxInteractiveMoveData& data) : m_data(data) {}
+
+private:
+ DECLARE_EVENT_TABLE()
+ void OnMouseMove(wxMouseEvent& event);
+ void OnMouseDown(wxMouseEvent& event);
+ void OnMouseUp(wxMouseEvent& event);
+ void OnKeyDown(wxKeyEvent& event);
+
+ wxInteractiveMoveData& m_data;
+};
+
+BEGIN_EVENT_TABLE(wxInteractiveMoveHandler, wxEvtHandler)
+ EVT_MOTION(wxInteractiveMoveHandler::OnMouseMove)
+ EVT_LEFT_DOWN(wxInteractiveMoveHandler::OnMouseDown)
+ EVT_LEFT_UP(wxInteractiveMoveHandler::OnMouseUp)
+ EVT_KEY_DOWN(wxInteractiveMoveHandler::OnKeyDown)
+END_EVENT_TABLE()
+
+
+static inline LINKAGEMODE
+void wxApplyResize(wxInteractiveMoveData& data, const wxPoint& diff)
+{
+ if ( data.m_flags & wxINTERACTIVE_RESIZE_W )
+ {
+ data.m_rect.x += diff.x;
+ data.m_rect.width -= diff.x;
+ }
+ else if ( data.m_flags & wxINTERACTIVE_RESIZE_E )
+ {
+ data.m_rect.width += diff.x;
+ }
+ if ( data.m_flags & wxINTERACTIVE_RESIZE_N )
+ {
+ data.m_rect.y += diff.y;
+ data.m_rect.height -= diff.y;
+ }
+ else if ( data.m_flags & wxINTERACTIVE_RESIZE_S )
+ {
+ data.m_rect.height += diff.y;
+ }
+
+ if ( data.m_minSize.x != -1 && data.m_rect.width < data.m_minSize.x )
+ {
+ if ( data.m_flags & wxINTERACTIVE_RESIZE_W )
+ data.m_rect.x -= data.m_minSize.x - data.m_rect.width;
+ data.m_rect.width = data.m_minSize.x;
+ }
+ if ( data.m_maxSize.x != -1 && data.m_rect.width > data.m_maxSize.x )
+ {
+ if ( data.m_flags & wxINTERACTIVE_RESIZE_W )
+ data.m_rect.x -= data.m_minSize.x - data.m_rect.width;
+ data.m_rect.width = data.m_maxSize.x;
+ }
+ if ( data.m_minSize.y != -1 && data.m_rect.height < data.m_minSize.y )
+ {
+ if ( data.m_flags & wxINTERACTIVE_RESIZE_N )
+ data.m_rect.y -= data.m_minSize.y - data.m_rect.height;
+ data.m_rect.height = data.m_minSize.y;
+ }
+ if ( data.m_maxSize.y != -1 && data.m_rect.height > data.m_maxSize.y )
+ {
+ if ( data.m_flags & wxINTERACTIVE_RESIZE_N )
+ data.m_rect.y -= data.m_minSize.y - data.m_rect.height;
+ data.m_rect.height = data.m_maxSize.y;
+ }
+}
+
+void wxInteractiveMoveHandler::OnMouseMove(wxMouseEvent& event)
+{
+ if ( m_data.m_flags & wxINTERACTIVE_WAIT_FOR_INPUT )
+ event.Skip();
+
+ else if ( m_data.m_flags & wxINTERACTIVE_MOVE )
+ {
+ wxPoint diff = wxGetMousePosition() - m_data.m_pos;
+ m_data.m_rect = m_data.m_rectOrig;
+ m_data.m_rect.Offset(diff);
+ m_data.m_window->Move(m_data.m_rect.GetPosition());
+ }
+
+ else if ( m_data.m_flags & wxINTERACTIVE_RESIZE )
+ {
+ wxPoint diff = wxGetMousePosition() - m_data.m_pos;
+ m_data.m_rect = m_data.m_rectOrig;
+ wxApplyResize(m_data, diff);
+ m_data.m_window->SetSize(m_data.m_rect);
+ }
+}
+
+void wxInteractiveMoveHandler::OnMouseDown(wxMouseEvent& event)
+{
+ if ( m_data.m_flags & wxINTERACTIVE_WAIT_FOR_INPUT )
+ {
+ m_data.m_flags &= ~wxINTERACTIVE_WAIT_FOR_INPUT;
+ m_data.m_pos = wxGetMousePosition();
+ }
+}
+
+void wxInteractiveMoveHandler::OnKeyDown(wxKeyEvent& event)
+{
+ if ( m_data.m_flags & wxINTERACTIVE_WAIT_FOR_INPUT )
+ {
+ m_data.m_flags &= ~wxINTERACTIVE_WAIT_FOR_INPUT;
+ m_data.m_pos = wxGetMousePosition();
+ }
+
+ wxPoint diff(-1,-1);
+
+ switch ( event.GetKeyCode() )
+ {
+ case WXK_UP: diff = wxPoint(0, -16); break;
+ case WXK_DOWN: diff = wxPoint(0, 16); break;
+ case WXK_LEFT: diff = wxPoint(-16, 0); break;
+ case WXK_RIGHT: diff = wxPoint(16, 0); break;
+ case WXK_ESCAPE:
+ m_data.m_window->SetSize(m_data.m_rectOrig);
+ m_data.m_evtLoop->Exit();
+ return;
+ case WXK_RETURN:
+ m_data.m_evtLoop->Exit();
+ return;
+ }
+
+ if ( diff.x != -1 )
+ {
+ if ( m_data.m_flags & wxINTERACTIVE_MOVE )
+ {
+ m_data.m_rect.Offset(diff);
+ m_data.m_window->Move(m_data.m_rect.GetPosition());
+ }
+ else /* wxINTERACTIVE_RESIZE */
+ {
+ if ( !(m_data.m_flags & wxINTERACTIVE_RESIZE_DIR) )
+ {
+ if ( diff.y < 0 )
+ m_data.m_flags |= wxINTERACTIVE_RESIZE_N;
+ else if ( diff.y > 0 )
+ m_data.m_flags |= wxINTERACTIVE_RESIZE_S;
+ if ( diff.x < 0 )
+ m_data.m_flags |= wxINTERACTIVE_RESIZE_W;
+ else if ( diff.x > 0 )
+ m_data.m_flags |= wxINTERACTIVE_RESIZE_E;
+ }
+
+ wxApplyResize(m_data, diff);
+ m_data.m_window->SetSize(m_data.m_rect);
+ }
+ }
+}
+
+void wxInteractiveMoveHandler::OnMouseUp(wxMouseEvent& event)
+{
+ m_data.m_evtLoop->Exit();
+}
+
+
+void wxTopLevelWindow::InteractiveMove(int flags)
+{
+ wxASSERT_MSG( !((flags & wxINTERACTIVE_MOVE) && (flags & wxINTERACTIVE_RESIZE)),
+ wxT("can't move and resize window at the same time") );
+
+ wxASSERT_MSG( !(flags & wxINTERACTIVE_RESIZE) ||
+ (flags & wxINTERACTIVE_WAIT_FOR_INPUT) ||
+ (flags & wxINTERACTIVE_RESIZE_DIR),
+ wxT("direction of resizing not specified") );
+
+ wxInteractiveMoveData data;
+ wxEventLoop loop;
+ wxWindow *focus = FindFocus();
+
+ // FIXME - display resize cursor if waiting for initial input
+
+ data.m_window = this;
+ data.m_evtLoop = &loop;
+ data.m_flags = flags;
+ data.m_rect = data.m_rectOrig = GetRect();
+ data.m_pos = wxGetMousePosition();
+ data.m_minSize = wxSize(GetMinWidth(), GetMinHeight());
+ data.m_maxSize = wxSize(GetMaxWidth(), GetMaxHeight());
+
+ this->PushEventHandler(new wxInteractiveMoveHandler(data));
+ if ( focus )
+ focus->PushEventHandler(new wxInteractiveMoveHandler(data));
+
+ CaptureMouse();
+ loop.Run();
+ ReleaseMouse();
+
+ this->PopEventHandler(TRUE/*delete*/);
+ if ( focus )
+ focus->PopEventHandler(TRUE/*delete*/);
+}
+
projects / wxWidgets.git / blobdiff