src/aui/floatpane.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/aui/floatpane.cpp
   3 // Purpose:     wxaui: wx advanced user interface - docking window manager
   4 // Author:      Benjamin I. Williams
   5 // Modified by:
   6 // Created:     2005-05-17
   7 // RCS-ID:      $Id$
   8 // Copyright:   (C) Copyright 2005-2006, Kirix Corporation, All Rights Reserved
   9 // Licence:     wxWindows Library Licence, Version 3.1
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_AUI
  27
  28 #include "wx/aui/framemanager.h"
  29 #include "wx/aui/floatpane.h"
  30 #include "wx/aui/dockart.h"
  31
  32 #ifndef WX_PRECOMP
  33 #endif
  34
  35 #ifdef __WXMSW__
  36 #include "wx/msw/private.h"
  37 #endif
  38
  39 IMPLEMENT_CLASS(wxAuiFloatingFrame, wxAuiFloatingFrameBaseClass)
  40
  41 wxAuiFloatingFrame::wxAuiFloatingFrame(wxWindow* parent,
  42                 wxAuiManager* owner_mgr,
  43                 const wxAuiPaneInfo& pane,
  44                 wxWindowID id /*= wxID_ANY*/,
  45                 long style /*=wxRESIZE_BORDER | wxSYSTEM_MENU | wxCAPTION |
  46                               wxFRAME_NO_TASKBAR | wxFRAME_FLOAT_ON_PARENT |
  47                               wxCLIP_CHILDREN
  48                            */)
  49                 : wxAuiFloatingFrameBaseClass(parent, id, wxEmptyString,
  50                         pane.floating_pos, pane.floating_size,
  51                         style |
  52                         (pane.HasCloseButton()?wxCLOSE_BOX:0) |
  53                         (pane.HasMaximizeButton()?wxMAXIMIZE_BOX:0) |
  54                         (pane.IsFixed()?0:wxRESIZE_BORDER)
  55                         )
  56 {
  57     m_ownerMgr = owner_mgr;
  58     m_moving = false;
  59     m_mgr.SetManagedWindow(this);
  60     m_solidDrag = true;
  61
  62     // find out if the system supports solid window drag.
  63     // on non-msw systems, this is assumed to be the case
  64 #ifdef __WXMSW__
  65     BOOL b = TRUE;
  66     SystemParametersInfo(38 /*SPI_GETDRAGFULLWINDOWS*/, 0, &b, 0);
  67     m_solidDrag = b ? true : false;
  68 #endif
  69
  70     SetExtraStyle(wxWS_EX_PROCESS_IDLE);
  71 }
  72
  73 wxAuiFloatingFrame::~wxAuiFloatingFrame()
  74 {
  75     // if we do not do this, then we can crash...
  76     if (m_ownerMgr && m_ownerMgr->m_actionWindow == this)
  77     {
  78         m_ownerMgr->m_actionWindow = NULL;
  79     }
  80
  81     m_mgr.UnInit();
  82 }
  83
  84 void wxAuiFloatingFrame::SetPaneWindow(const wxAuiPaneInfo& pane)
  85 {
  86     m_paneWindow = pane.window;
  87     m_paneWindow->Reparent(this);
  88
  89     wxAuiPaneInfo contained_pane = pane;
  90     contained_pane.Dock().Center().Show().
  91                     CaptionVisible(false).
  92                     PaneBorder(false).
  93                     Layer(0).Row(0).Position(0);
  94
  95     // Carry over the minimum size
  96     wxSize pane_min_size = pane.window->GetMinSize();
  97
  98     // if the frame window's max size is greater than the min size
  99     // then set the max size to the min size as well
 100     wxSize cur_max_size = GetMaxSize();
 101     if (cur_max_size.IsFullySpecified() &&
 102           (cur_max_size.x < pane.min_size.x ||
 103            cur_max_size.y < pane.min_size.y)
 104        )
 105     {
 106         SetMaxSize(pane_min_size);
 107     }
 108
 109     SetMinSize(pane.window->GetMinSize());
 110
 111     m_mgr.AddPane(m_paneWindow, contained_pane);
 112     m_mgr.Update();
 113
 114     if (pane.min_size.IsFullySpecified())
 115     {
 116         // because SetSizeHints() calls Fit() too (which sets the window
 117         // size to its minimum allowed), we keep the size before calling
 118         // SetSizeHints() and reset it afterwards...
 119         wxSize tmp = GetSize();
 120         GetSizer()->SetSizeHints(this);
 121         SetSize(tmp);
 122     }
 123
 124     SetTitle(pane.caption);
 125
 126     // This code is slightly awkward because we need to reset wxRESIZE_BORDER
 127     // before calling SetClientSize() below as doing it after setting the
 128     // client size would actually change it, at least under MSW, where the
 129     // total window size doesn't change and hence, as the borders size changes,
 130     // the client size does change.
 131     //
 132     // So we must call it first but doing it generates a size event and updates
 133     // pane.floating_size from inside it so we must also record its original
 134     // value before doing it.
 135     const bool hasFloatingSize = pane.floating_size != wxDefaultSize;
 136     if (pane.IsFixed())
 137     {
 138         SetWindowStyleFlag(GetWindowStyleFlag() & ~wxRESIZE_BORDER);
 139     }
 140
 141     if ( hasFloatingSize )
 142     {
 143         SetSize(pane.floating_size);
 144     }
 145     else
 146     {
 147         wxSize size = pane.best_size;
 148         if (size == wxDefaultSize)
 149             size = pane.min_size;
 150         if (size == wxDefaultSize)
 151             size = m_paneWindow->GetSize();
 152         if (m_ownerMgr && pane.HasGripper())
 153         {
 154             if (pane.HasGripperTop())
 155                 size.y += m_ownerMgr->m_art->GetMetric(wxAUI_DOCKART_GRIPPER_SIZE);
 156             else
 157                 size.x += m_ownerMgr->m_art->GetMetric(wxAUI_DOCKART_GRIPPER_SIZE);
 158         }
 159
 160         SetClientSize(size);
 161     }
 162 }
 163
 164 wxAuiManager* wxAuiFloatingFrame::GetOwnerManager() const
 165 {
 166     return m_ownerMgr;
 167 }
 168
 169
 170 void wxAuiFloatingFrame::OnSize(wxSizeEvent& WXUNUSED(event))
 171 {
 172     if (m_ownerMgr)
 173     {
 174         m_ownerMgr->OnFloatingPaneResized(m_paneWindow, GetRect());
 175     }
 176 }
 177
 178 void wxAuiFloatingFrame::OnClose(wxCloseEvent& evt)
 179 {
 180     if (m_ownerMgr)
 181     {
 182         m_ownerMgr->OnFloatingPaneClosed(m_paneWindow, evt);
 183     }
 184     if (!evt.GetVeto())
 185     {
 186         m_mgr.DetachPane(m_paneWindow);
 187         Destroy();
 188     }
 189 }
 190
 191 void wxAuiFloatingFrame::OnMoveEvent(wxMoveEvent& event)
 192 {
 193     if (!m_solidDrag)
 194     {
 195         // systems without solid window dragging need to be
 196         // handled slightly differently, due to the lack of
 197         // the constant stream of EVT_MOVING events
 198         if (!isMouseDown())
 199             return;
 200         OnMoveStart();
 201         OnMoving(event.GetRect(), wxNORTH);
 202         m_moving = true;
 203         return;
 204     }
 205
 206
 207     wxRect winRect = GetRect();
 208
 209     if (winRect == m_lastRect)
 210         return;
 211
 212     // skip the first move event
 213     if (m_lastRect.IsEmpty())
 214     {
 215         m_lastRect = winRect;
 216         return;
 217     }
 218
 219     // as on OSX moving windows are not getting all move events, only sporadically, this difference
 220     // is almost always big on OSX, so avoid this early exit opportunity
 221 #ifndef __WXOSX__
 222     // skip if moving too fast to avoid massive redraws and
 223     // jumping hint windows
 224     if ((abs(winRect.x - m_lastRect.x) > 3) ||
 225         (abs(winRect.y - m_lastRect.y) > 3))
 226     {
 227         m_last3Rect = m_last2Rect;
 228         m_last2Rect = m_lastRect;
 229         m_lastRect = winRect;
 230
 231         // However still update the internally stored position to avoid
 232         // snapping back to the old one later.
 233         if (m_ownerMgr)
 234         {
 235             m_ownerMgr->GetPane(m_paneWindow).
 236                 floating_pos = winRect.GetPosition();
 237         }
 238
 239         return;
 240     }
 241 #endif
 242
 243     // prevent frame redocking during resize
 244     if (m_lastRect.GetSize() != winRect.GetSize())
 245     {
 246         m_last3Rect = m_last2Rect;
 247         m_last2Rect = m_lastRect;
 248         m_lastRect = winRect;
 249         return;
 250     }
 251
 252     wxDirection dir = wxALL;
 253
 254     int horiz_dist = abs(winRect.x - m_last3Rect.x);
 255     int vert_dist = abs(winRect.y - m_last3Rect.y);
 256
 257     if (vert_dist >= horiz_dist)
 258     {
 259         if (winRect.y < m_last3Rect.y)
 260             dir = wxNORTH;
 261         else
 262             dir = wxSOUTH;
 263     }
 264     else
 265     {
 266         if (winRect.x < m_last3Rect.x)
 267             dir = wxWEST;
 268         else
 269             dir = wxEAST;
 270     }
 271
 272     m_last3Rect = m_last2Rect;
 273     m_last2Rect = m_lastRect;
 274     m_lastRect = winRect;
 275
 276     if (!isMouseDown())
 277         return;
 278
 279     if (!m_moving)
 280     {
 281         OnMoveStart();
 282         m_moving = true;
 283     }
 284
 285     if (m_last3Rect.IsEmpty())
 286         return;
 287
 288     if ( event.GetEventType() == wxEVT_MOVING )
 289         OnMoving(event.GetRect(), dir);
 290     else
 291         OnMoving(wxRect(event.GetPosition(),GetSize()), dir);
 292 }
 293
 294 void wxAuiFloatingFrame::OnIdle(wxIdleEvent& event)
 295 {
 296     if (m_moving)
 297     {
 298         if (!isMouseDown())
 299         {
 300             m_moving = false;
 301             OnMoveFinished();
 302         }
 303         else
 304         {
 305             event.RequestMore();
 306         }
 307     }
 308 }
 309
 310 void wxAuiFloatingFrame::OnMoveStart()
 311 {
 312     // notify the owner manager that the pane has started to move
 313     if (m_ownerMgr)
 314     {
 315         m_ownerMgr->OnFloatingPaneMoveStart(m_paneWindow);
 316     }
 317 }
 318
 319 void wxAuiFloatingFrame::OnMoving(const wxRect& WXUNUSED(window_rect), wxDirection dir)
 320 {
 321     // notify the owner manager that the pane is moving
 322     if (m_ownerMgr)
 323     {
 324         m_ownerMgr->OnFloatingPaneMoving(m_paneWindow, dir);
 325     }
 326     m_lastDirection = dir;
 327 }
 328
 329 void wxAuiFloatingFrame::OnMoveFinished()
 330 {
 331     // notify the owner manager that the pane has finished moving
 332     if (m_ownerMgr)
 333     {
 334         m_ownerMgr->OnFloatingPaneMoved(m_paneWindow, m_lastDirection);
 335     }
 336 }
 337
 338 void wxAuiFloatingFrame::OnActivate(wxActivateEvent& event)
 339 {
 340     if (m_ownerMgr && event.GetActive())
 341     {
 342         m_ownerMgr->OnFloatingPaneActivated(m_paneWindow);
 343     }
 344 }
 345
 346 // utility function which determines the state of the mouse button
 347 // (independent of having a wxMouseEvent handy) - utimately a better
 348 // mechanism for this should be found (possibly by adding the
 349 // functionality to wxWidgets itself)
 350 bool wxAuiFloatingFrame::isMouseDown()
 351 {
 352     return wxGetMouseState().LeftIsDown();
 353 }
 354
 355
 356 BEGIN_EVENT_TABLE(wxAuiFloatingFrame, wxAuiFloatingFrameBaseClass)
 357     EVT_SIZE(wxAuiFloatingFrame::OnSize)
 358     EVT_MOVE(wxAuiFloatingFrame::OnMoveEvent)
 359     EVT_MOVING(wxAuiFloatingFrame::OnMoveEvent)
 360     EVT_CLOSE(wxAuiFloatingFrame::OnClose)
 361     EVT_IDLE(wxAuiFloatingFrame::OnIdle)
 362     EVT_ACTIVATE(wxAuiFloatingFrame::OnActivate)
 363 END_EVENT_TABLE()
 364
 365
 366 #endif // wxUSE_AUI