include/wx/mac/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        window.h
   3 // Purpose:     wxWindow class
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     ??/??/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_WINDOW_H_
  13 #define _WX_WINDOW_H_
  14
  15 #ifdef __GNUG__
  16 #pragma interface "window.h"
  17 #endif
  18
  19 #include "wx/gdicmn.h"
  20 #include "wx/icon.h"
  21 #include "wx/cursor.h"
  22 #include "wx/pen.h"
  23 #include "wx/font.h"
  24 #include "wx/validate.h"
  25 #include "wx/event.h"
  26 #include "wx/string.h"
  27 #include "wx/list.h"
  28 #include "wx/region.h"
  29 #include "wx/accel.h"
  30
  31 #define wxKEY_SHIFT     1
  32 #define wxKEY_CTRL      2
  33
  34 /*
  35  * Base class for frame, panel, canvas, panel items, dialog box.
  36  *
  37  */
  38
  39 /*
  40  * Event handler: windows have themselves as their event handlers
  41  * by default, but their event handlers could be set to another
  42  * object entirely. This separation can reduce the amount of
  43  * derivation required, and allow alteration of a window's functionality
  44  * (e.g. by a resource editor that temporarily switches event handlers).
  45  */
  46
  47 class WXDLLEXPORT wxWindow;
  48 class WXDLLEXPORT wxEvent;
  49 class WXDLLEXPORT wxCommandEvent;
  50 class WXDLLEXPORT wxKeyEvent;
  51 class WXDLLEXPORT wxControl;
  52 class WXDLLEXPORT wxCursor;
  53 class WXDLLEXPORT wxColourMap;
  54 class WXDLLEXPORT wxFont;
  55 class WXDLLEXPORT wxMenu;
  56 class WXDLLEXPORT wxRect;
  57 class WXDLLEXPORT wxBitmap;
  58 class WXDLLEXPORT wxSizer;
  59 class WXDLLEXPORT wxList;
  60 class WXDLLEXPORT wxLayoutConstraints;
  61 class WXDLLEXPORT wxMouseEvent;
  62 class WXDLLEXPORT wxButton;
  63 class WXDLLEXPORT wxColour;
  64 class WXDLLEXPORT wxBrush;
  65 class WXDLLEXPORT wxPen;
  66 class WXDLLEXPORT wxIcon;
  67 class WXDLLEXPORT wxDC;
  68 class WXDLLEXPORT wxValidator;
  69
  70 #if wxUSE_DRAG_AND_DROP
  71 class WXDLLEXPORT wxDropTarget;
  72 #endif
  73
  74 #if wxUSE_WX_RESOURCES
  75 class WXDLLEXPORT wxResourceTable;
  76 class WXDLLEXPORT wxItemResource;
  77 #endif
  78
  79 WXDLLEXPORT_DATA(extern const char*) wxPanelNameStr;
  80
  81 WXDLLEXPORT_DATA(extern const wxSize) wxDefaultSize;
  82 WXDLLEXPORT_DATA(extern const wxPoint) wxDefaultPosition;
  83
  84 //-----------------------------------------------------------------------------
  85 // wxClientData
  86 //-----------------------------------------------------------------------------
  87
  88 class wxClientData
  89 {
  90 public:
  91     wxClientData() { }
  92     virtual ~wxClientData() { }
  93 };
  94
  95 //-----------------------------------------------------------------------------
  96 // wxStringClientData
  97 //-----------------------------------------------------------------------------
  98
  99 class wxStringClientData: public wxClientData
 100 {
 101 public:
 102     wxStringClientData() { }
 103     wxStringClientData( wxString &data ) { m_data = data; }
 104     void SetData( wxString &data ) { m_data = data; }
 105     wxString GetData() const { return m_data; }
 106
 107 private:
 108     wxString  m_data;
 109 };
 110
 111 class WXDLLEXPORT wxWindow: public wxEvtHandler
 112 {
 113   DECLARE_ABSTRACT_CLASS(wxWindow)
 114
 115   friend class wxDC;
 116   friend class wxPaintDC;
 117
 118 public:
 119   wxWindow();
 120   inline wxWindow(wxWindow *parent, wxWindowID id,
 121            const wxPoint& pos = wxDefaultPosition,
 122            const wxSize& size = wxDefaultSize,
 123            long style = 0,
 124            const wxString& name = wxPanelNameStr)
 125   {
 126           m_children = new wxList;
 127       Create(parent, id, pos, size, style, name);
 128   }
 129
 130   virtual ~wxWindow();
 131
 132   bool Create(wxWindow *parent, wxWindowID id,
 133            const wxPoint& pos = wxDefaultPosition,
 134            const wxSize& size = wxDefaultSize,
 135            long style = 0,
 136            const wxString& name = wxPanelNameStr);
 137
 138   // Fit the window around the items
 139   virtual void Fit();
 140
 141   // Show or hide the window
 142   virtual bool Show(bool show);
 143
 144   // Is the window shown?
 145   virtual bool IsShown() const;
 146
 147   // Raise the window to the top of the Z order
 148   virtual void Raise();
 149
 150   // Lower the window to the bottom of the Z order
 151   virtual void Lower();
 152
 153   // Is the window enabled?
 154   virtual bool IsEnabled() const;
 155
 156   // For compatibility
 157   inline bool Enabled() const { return IsEnabled(); }
 158
 159   // Dialog support: override these and call
 160   // base class members to add functionality
 161   // that can't be done using validators.
 162
 163   // Transfer values to controls. If returns FALSE,
 164   // it's an application error (pops up a dialog)
 165   virtual bool TransferDataToWindow();
 166
 167   // Transfer values from controls. If returns FALSE,
 168   // transfer failed: don't quit
 169   virtual bool TransferDataFromWindow();
 170
 171   // Validate controls. If returns FALSE,
 172   // validation failed: don't quit
 173   virtual bool Validate();
 174
 175   // Return code for dialogs
 176   inline void SetReturnCode(int retCode);
 177   inline int GetReturnCode();
 178
 179   // Set the cursor
 180   virtual void SetCursor(const wxCursor& cursor);
 181   inline virtual wxCursor *GetCursor() const { return (wxCursor *)& m_windowCursor; };
 182
 183   // Get the window with the focus
 184   static wxWindow *FindFocus();
 185
 186   // Get character size
 187   virtual int GetCharHeight() const;
 188   virtual int GetCharWidth() const;
 189
 190   // Get overall window size
 191   virtual void GetSize(int *width, int *height) const;
 192
 193   // Get window position, relative to parent (or screen if no parent)
 194   virtual void GetPosition(int *x, int *y) const;
 195
 196   // Get client (application-useable) size
 197   virtual void GetClientSize(int *width, int *height) const;
 198
 199   // Set overall size and position
 200   virtual void SetSize(int x, int y, int width, int height, int sizeFlags = wxSIZE_AUTO);
 201   inline virtual void SetSize(int width, int height) { SetSize(-1, -1, width, height, wxSIZE_USE_EXISTING); }
 202   inline virtual void Move(int x, int y) { SetSize(x, y, -1, -1, wxSIZE_USE_EXISTING); }
 203
 204   // Set client size
 205   virtual void SetClientSize(int width, int size);
 206
 207   // Convert client to screen coordinates
 208   virtual void ClientToScreen(int *x, int *y) const;
 209
 210   // Convert screen to client coordinates
 211   virtual void ScreenToClient(int *x, int *y) const;
 212
 213   // Set the focus to this window
 214   virtual void SetFocus();
 215
 216   // Capture/release mouse
 217   virtual void CaptureMouse();
 218   virtual void ReleaseMouse();
 219
 220   // Enable or disable the window
 221   virtual void Enable(bool enable);
 222
 223 #if wxUSE_DRAG_AND_DROP
 224   // Associate a drop target with this window (if the window already had a drop
 225   // target, it's deleted!) and return the current drop target (may be NULL).
 226   void          SetDropTarget(wxDropTarget *pDropTarget);
 227   wxDropTarget *GetDropTarget() const { return m_pDropTarget; }
 228 #endif
 229
 230   // Accept files for dragging
 231   virtual void DragAcceptFiles(bool accept);
 232
 233   // Update region access
 234   virtual wxRegion GetUpdateRegion() const;
 235   virtual bool IsExposed(int x, int y, int w, int h) const;
 236   virtual bool IsExposed(const wxPoint& pt) const;
 237   virtual bool IsExposed(const wxRect& rect) const;
 238
 239   // Set/get the window title
 240   virtual inline void SetTitle(const wxString& WXUNUSED(title)) {};
 241   inline virtual wxString GetTitle() const { return wxString(""); };
 242   // Most windows have the concept of a label; for frames, this is the
 243   // title; for items, this is the label or button text.
 244   inline virtual wxString GetLabel() const { return GetTitle(); }
 245
 246   // Set/get the window name (used for resource setting in X)
 247   inline virtual wxString GetName() const;
 248   inline virtual void SetName(const wxString& name);
 249
 250   // Centre the window
 251   virtual void Centre(int direction) ;
 252   inline void Center(int direction = wxHORIZONTAL) { Centre(direction); }
 253
 254   // Popup a menu
 255   virtual bool PopupMenu(wxMenu *menu, int x, int y);
 256
 257   // Send the window a refresh event
 258   virtual void Refresh(bool eraseBack = TRUE, const wxRect *rect = NULL);
 259
 260   // New functions that will replace the above.
 261   virtual void SetScrollbar(int orient, int pos, int thumbVisible,
 262     int range, bool refresh = TRUE);
 263
 264   virtual void SetScrollPos(int orient, int pos, bool refresh = TRUE);
 265   virtual int GetScrollPos(int orient) const;
 266   virtual int GetScrollRange(int orient) const;
 267   virtual int GetScrollThumb(int orient) const;
 268
 269   virtual void ScrollWindow(int dx, int dy, const wxRect *rect = NULL);
 270
 271   // Caret manipulation
 272   virtual void CreateCaret(int w, int h);
 273   virtual void CreateCaret(const wxBitmap *bitmap);
 274   virtual void DestroyCaret();
 275   virtual void ShowCaret(bool show);
 276   virtual void SetCaretPos(int x, int y);
 277   virtual void GetCaretPos(int *x, int *y) const;
 278
 279   // Tell window how much it can be sized
 280   virtual void SetSizeHints(int minW = -1, int minH = -1, int maxW = -1, int maxH = -1, int incW = -1, int incH = -1);
 281
 282   // Set/get the window's identifier
 283   inline int GetId() const;
 284   inline void SetId(int id);
 285
 286   virtual void SetAcceleratorTable(const wxAcceleratorTable& accel);
 287   inline virtual wxAcceleratorTable& GetAcceleratorTable() const { return (wxAcceleratorTable&) m_acceleratorTable; }
 288
 289   // Make the window modal (all other windows unresponsive)
 290   virtual void MakeModal(bool modal);
 291
 292   // Get the private handle (platform-dependent)
 293   inline void *GetHandle() const;
 294
 295   // Set/get the window's relatives
 296   inline wxWindow *GetParent() const;
 297   inline void SetParent(wxWindow *p) ;
 298   inline wxWindow *GetGrandParent() const;
 299   inline wxList& GetChildren() const;
 300
 301   // Set/get the window's font
 302   virtual void SetFont(const wxFont& f);
 303   inline virtual wxFont& GetFont() const;
 304
 305   // Set/get the window's validator
 306   void SetValidator(const wxValidator& validator);
 307   inline wxValidator *GetValidator() const;
 308
 309   // Set/get the window's style
 310   inline void SetWindowStyleFlag(long flag);
 311   inline long GetWindowStyleFlag() const;
 312
 313   // Handle a control command
 314   virtual void OnCommand(wxWindow& win, wxCommandEvent& event);
 315
 316   // Set/get event handler
 317   inline void SetEventHandler(wxEvtHandler *handler);
 318   inline wxEvtHandler *GetEventHandler() const;
 319
 320   // Push/pop event handler (i.e. allow a chain of event handlers
 321   // be searched)
 322   void PushEventHandler(wxEvtHandler *handler) ;
 323   wxEvtHandler *PopEventHandler(bool deleteHandler = FALSE) ;
 324
 325   // Close the window by calling OnClose, posting a deletion
 326   virtual bool Close(bool force = FALSE);
 327
 328   // Destroy the window (delayed, if a managed window)
 329   virtual bool Destroy() ;
 330
 331   // Mode for telling default OnSize members to
 332   // call Layout(), if not using Sizers, just top-down constraints
 333   inline void SetAutoLayout(bool a);
 334   inline bool GetAutoLayout() const;
 335
 336   // Set/get constraints
 337   inline wxLayoutConstraints *GetConstraints() const;
 338   void SetConstraints(wxLayoutConstraints *c);
 339
 340   // Set/get window background colour
 341   inline virtual void SetBackgroundColour(const wxColour& col);
 342   inline virtual wxColour GetBackgroundColour() const;
 343
 344   // Set/get window foreground colour
 345   inline virtual void SetForegroundColour(const wxColour& col);
 346   inline virtual wxColour GetForegroundColour() const;
 347
 348   // Get the default button, if there is one
 349   inline virtual wxButton *GetDefaultItem() const;
 350   inline virtual void SetDefaultItem(wxButton *but);
 351
 352   // Override to define new behaviour for default action (e.g. double clicking
 353   // on a listbox)
 354   virtual void OnDefaultAction(wxControl *initiatingItem);
 355
 356   // Resource loading
 357 #if wxUSE_WX_RESOURCES
 358   virtual bool LoadFromResource(wxWindow *parent, const wxString& resourceName, const wxResourceTable *table = NULL);
 359   virtual wxControl *CreateItem(const wxItemResource* childResource, const wxItemResource* parentResource,
 360                                  const wxResourceTable *table = (const wxResourceTable *) NULL);
 361 #endif
 362
 363   virtual void GetTextExtent(const wxString& string, int *x, int *y,
 364                              int *descent = NULL,
 365                              int *externalLeading = NULL,
 366                              const wxFont *theFont = NULL, bool use16 = FALSE) const;
 367
 368   // Is the window retained?
 369   inline bool IsRetained() const;
 370
 371   // Warp the pointer the given position
 372   virtual void WarpPointer(int x_pos, int y_pos) ;
 373
 374   // Clear the window
 375   virtual void Clear();
 376
 377   // Find a window by id or name
 378   virtual wxWindow *FindWindow(long id);
 379   virtual wxWindow *FindWindow(const wxString& name);
 380
 381   // Constraint operations
 382   bool Layout();
 383   void SetSizer(wxSizer *sizer);    // Adds sizer child to this window
 384   inline wxSizer *GetSizer() const ;
 385   inline wxWindow *GetSizerParent() const ;
 386   inline void SetSizerParent(wxWindow *win);
 387
 388   // Do Update UI processing for controls
 389   void UpdateWindowUI();
 390
 391   void OnEraseBackground(wxEraseEvent& event);
 392   void OnChar(wxKeyEvent& event);
 393   void OnPaint(wxPaintEvent& event);
 394   void OnIdle(wxIdleEvent& event);
 395
 396   // Does this window want to accept keyboard focus?
 397   virtual bool AcceptsFocus() const;
 398
 399   virtual void PrepareDC( wxDC &dc ) {};
 400
 401
 402 public:
 403   ////////////////////////////////////////////////////////////////////////
 404   //// IMPLEMENTATION
 405
 406   // For implementation purposes - sometimes decorations make the client area
 407   // smaller
 408   virtual wxPoint GetClientAreaOrigin() const;
 409
 410   // Makes an adjustment to the window position (for example, a frame that has
 411   // a toolbar that it manages itself).
 412   virtual void AdjustForParentClientOrigin(int& x, int& y, int sizeFlags);
 413
 414   // Executes the default message
 415   virtual long Default();
 416
 417 /* TODO: you may need something like this
 418   // Determine whether 3D effects are wanted
 419   virtual WXDWORD Determine3DEffects(WXDWORD defaultBorderStyle, bool *want3D);
 420 */
 421
 422   virtual void AddChild(wxWindow *child);         // Adds reference to the child object
 423   virtual void RemoveChild(wxWindow *child);   // Removes reference to child
 424                                        // (but doesn't delete the child object)
 425   virtual void DestroyChildren();  // Removes and destroys all children
 426
 427   inline bool IsBeingDeleted() const { return FALSE; } // TODO: Should probably eliminate this
 428
 429   // Constraint implementation
 430   void UnsetConstraints(wxLayoutConstraints *c);
 431   inline wxList *GetConstraintsInvolvedIn() const ;
 432   // Back-pointer to other windows we're involved with, so if we delete
 433   // this window, we must delete any constraints we're involved with.
 434   void AddConstraintReference(wxWindow *otherWin);
 435   void RemoveConstraintReference(wxWindow *otherWin);
 436   void DeleteRelatedConstraints();
 437
 438   virtual void ResetConstraints();
 439   virtual void SetConstraintSizes(bool recurse = TRUE);
 440   virtual bool LayoutPhase1(int *noChanges);
 441   virtual bool LayoutPhase2(int *noChanges);
 442   virtual bool DoPhase(int);
 443   // Transforms from sizer coordinate space to actual
 444   // parent coordinate space
 445   virtual void TransformSizerToActual(int *x, int *y) const ;
 446
 447   // Set size with transformation to actual coordinates if nec.
 448   virtual void SizerSetSize(int x, int y, int w, int h);
 449   virtual void SizerMove(int x, int y);
 450
 451   // Only set/get the size/position of the constraint (if any)
 452   virtual void SetSizeConstraint(int x, int y, int w, int h);
 453   virtual void MoveConstraint(int x, int y);
 454   virtual void GetSizeConstraint(int *w, int *h) const ;
 455   virtual void GetClientSizeConstraint(int *w, int *h) const ;
 456   virtual void GetPositionConstraint(int *x, int *y) const ;
 457
 458   // Dialog units translations. Implemented in wincmn.cpp.
 459   wxPoint ConvertPixelsToDialog(const wxPoint& pt) ;
 460   wxPoint ConvertDialogToPixels(const wxPoint& pt) ;
 461   inline wxSize ConvertPixelsToDialog(const wxSize& sz)
 462   { wxPoint pt(ConvertPixelsToDialog(wxPoint(sz.x, sz.y))); return wxSize(pt.x, pt.y); }
 463   inline wxSize ConvertDialogToPixels(const wxSize& sz)
 464   { wxPoint pt(ConvertDialogToPixels(wxPoint(sz.x, sz.y))); return wxSize(pt.x, pt.y); }
 465
 466   wxObject *GetChild(int number) const ;
 467
 468   // Generates a new id for controls
 469   static int NewControlId();
 470
 471   // Responds to colour changes: passes event on to children.
 472   void OnSysColourChanged(wxSysColourChangedEvent& event);
 473
 474   // Transfers data to any child controls
 475   void OnInitDialog(wxInitDialogEvent& event);
 476
 477   // Sends an OnInitDialog event, which in turns transfers data to
 478   // to the window via validators.
 479   virtual void InitDialog();
 480
 481   ////////////////////////////////////////////////////////////////////////
 482   //// PROTECTED DATA
 483 protected:
 484   int                   m_windowId;
 485   long                  m_windowStyle;                  // Store the window's style
 486   wxEvtHandler *        m_windowEventHandler;   // Usually is 'this'
 487   wxLayoutConstraints * m_constraints;           // Constraints for this window
 488   wxList *              m_constraintsInvolvedIn; // List of constraints we're involved in
 489   wxSizer *             m_windowSizer;                       // Window's top-level sizer (if any)
 490   wxWindow *            m_sizerParent;                      // Window's parent sizer (if any)
 491   bool                  m_autoLayout;                            // Whether to call Layout() in OnSize
 492   wxWindow *            m_windowParent;                     // Each window always knows its parent
 493   wxValidator *         m_windowValidator;
 494   int                   m_minSizeX;
 495   int                   m_minSizeY;
 496   int                   m_maxSizeX;
 497   int                   m_maxSizeY;
 498
 499   // Caret data
 500   int                   m_caretWidth;
 501   int                   m_caretHeight;
 502   bool                  m_caretEnabled;
 503   bool                  m_caretShown;
 504   wxFont                m_windowFont;                               // Window's font
 505   wxCursor              m_windowCursor;                        // Window's cursor
 506   wxString              m_windowName;                            // Window name
 507
 508   wxButton *            m_defaultItem;
 509
 510   wxColour              m_backgroundColour ;
 511   wxColour              m_foregroundColour ;
 512   wxAcceleratorTable    m_acceleratorTable;
 513
 514 #if wxUSE_DRAG_AND_DROP
 515   wxDropTarget         *m_pDropTarget;    // the current drop target or NULL
 516 #endif  //USE_DRAG_AND_DROP
 517
 518 public:
 519   wxRegion              m_updateRegion;
 520   wxList *              m_children;                           // Window's children
 521   int                   m_returnCode;
 522
 523 DECLARE_EVENT_TABLE()
 524 };
 525
 526 ////////////////////////////////////////////////////////////////////////
 527 //// INLINES
 528
 529 inline void *wxWindow::GetHandle() const { return (void *)NULL; }
 530 inline int wxWindow::GetId() const { return m_windowId; }
 531 inline void wxWindow::SetId(int id) { m_windowId = id; }
 532 inline wxWindow *wxWindow::GetParent() const { return m_windowParent; }
 533 inline void wxWindow::SetParent(wxWindow *p) { m_windowParent = p; }
 534 inline wxWindow *wxWindow::GetGrandParent() const { return (m_windowParent ? m_windowParent->m_windowParent : (wxWindow*) NULL); }
 535 inline wxList& wxWindow::GetChildren() const { return (wxList&) * m_children; }
 536 inline wxFont& wxWindow::GetFont() const { return (wxFont&) m_windowFont; }
 537 inline wxString wxWindow::GetName() const { return m_windowName; }
 538 inline void wxWindow::SetName(const wxString& name) { m_windowName = name; }
 539 inline long wxWindow::GetWindowStyleFlag() const { return m_windowStyle; }
 540 inline void wxWindow::SetWindowStyleFlag(long flag) { m_windowStyle = flag; }
 541 inline void wxWindow::SetEventHandler(wxEvtHandler *handler) { m_windowEventHandler = handler; }
 542 inline wxEvtHandler *wxWindow::GetEventHandler() const { return m_windowEventHandler; }
 543 inline void wxWindow::SetAutoLayout(bool a) { m_autoLayout = a; }
 544 inline bool wxWindow::GetAutoLayout() const { return m_autoLayout; }
 545 inline wxLayoutConstraints *wxWindow::GetConstraints() const { return m_constraints; }
 546 inline void wxWindow::SetBackgroundColour(const wxColour& col) { m_backgroundColour = col; };
 547 inline wxColour wxWindow::GetBackgroundColour() const { return m_backgroundColour; };
 548 inline void wxWindow::SetForegroundColour(const wxColour& col) { m_foregroundColour = col; };
 549 inline wxColour wxWindow::GetForegroundColour() const { return m_foregroundColour; };
 550
 551 inline wxButton *wxWindow::GetDefaultItem() const { return m_defaultItem; }
 552 inline void wxWindow::SetDefaultItem(wxButton *but) { m_defaultItem = but; }
 553 inline bool wxWindow::IsRetained() const { return ((m_windowStyle & wxRETAINED) == wxRETAINED); }
 554
 555 inline wxList *wxWindow::GetConstraintsInvolvedIn() const { return m_constraintsInvolvedIn; }
 556 inline wxSizer *wxWindow::GetSizer() const { return m_windowSizer; }
 557 inline wxWindow *wxWindow::GetSizerParent() const { return m_sizerParent; }
 558 inline void wxWindow::SetSizerParent(wxWindow *win) { m_sizerParent = win; }
 559 inline wxValidator *wxWindow::GetValidator() const { return m_windowValidator; }
 560 inline void wxWindow::SetReturnCode(int retCode) { m_returnCode = retCode; }
 561 inline int wxWindow::GetReturnCode() { return m_returnCode; }
 562
 563 // Get the active window.
 564 wxWindow* WXDLLEXPORT wxGetActiveWindow();
 565
 566 WXDLLEXPORT_DATA(extern wxList) wxTopLevelWindows;
 567
 568 #endif
 569     // _WX_WINDOW_H_