include/wx/qt/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
  30 #define wxKEY_SHIFT     1
  31 #define wxKEY_CTRL      2
  32
  33 /*
  34  * Base class for frame, panel, canvas, panel items, dialog box.
  35  *
  36  */
  37
  38 /*
  39  * Event handler: windows have themselves as their event handlers
  40  * by default, but their event handlers could be set to another
  41  * object entirely. This separation can reduce the amount of
  42  * derivation required, and allow alteration of a window's functionality
  43  * (e.g. by a resource editor that temporarily switches event handlers).
  44  */
  45
  46 class WXDLLEXPORT wxWindow;
  47 class WXDLLEXPORT wxEvent;
  48 class WXDLLEXPORT wxCommandEvent;
  49 class WXDLLEXPORT wxKeyEvent;
  50 class WXDLLEXPORT wxControl;
  51 class WXDLLEXPORT wxCursor;
  52 class WXDLLEXPORT wxColourMap;
  53 class WXDLLEXPORT wxFont;
  54 class WXDLLEXPORT wxMenu;
  55 class WXDLLEXPORT wxRect;
  56 class WXDLLEXPORT wxBitmap;
  57 class WXDLLEXPORT wxSizer;
  58 class WXDLLEXPORT wxList;
  59 class WXDLLEXPORT wxLayoutConstraints;
  60 class WXDLLEXPORT wxMouseEvent;
  61 class WXDLLEXPORT wxButton;
  62 class WXDLLEXPORT wxColour;
  63 class WXDLLEXPORT wxBrush;
  64 class WXDLLEXPORT wxPen;
  65 class WXDLLEXPORT wxIcon;
  66 class WXDLLEXPORT wxDC;
  67 class WXDLLEXPORT wxValidator;
  68
  69 #if wxUSE_DRAG_AND_DROP
  70 class WXDLLEXPORT wxDropTarget;
  71 #endif
  72
  73 #if wxUSE_WX_RESOURCES
  74 class WXDLLEXPORT wxResourceTable;
  75 class WXDLLEXPORT wxItemResource;
  76 #endif
  77
  78 WXDLLEXPORT_DATA(extern const char*) wxPanelNameStr;
  79
  80 WXDLLEXPORT_DATA(extern const wxSize) wxDefaultSize;
  81 WXDLLEXPORT_DATA(extern const wxPoint) wxDefaultPosition;
  82
  83 class WXDLLEXPORT wxWindow: public wxEvtHandler
  84 {
  85   DECLARE_ABSTRACT_CLASS(wxWindow)
  86
  87   friend class wxDC;
  88   friend class wxPaintDC;
  89
  90 public:
  91   wxWindow();
  92   inline wxWindow(wxWindow *parent, wxWindowID id,
  93            const wxPoint& pos = wxDefaultPosition,
  94            const wxSize& size = wxDefaultSize,
  95            long style = 0,
  96            const wxString& name = wxPanelNameStr)
  97   {
  98           m_children = new wxList;
  99       Create(parent, id, pos, size, style, name);
 100   }
 101
 102   virtual ~wxWindow();
 103
 104   bool Create(wxWindow *parent, wxWindowID id,
 105            const wxPoint& pos = wxDefaultPosition,
 106            const wxSize& size = wxDefaultSize,
 107            long style = 0,
 108            const wxString& name = wxPanelNameStr);
 109
 110   // Fit the window around the items
 111   virtual void Fit();
 112
 113   // Show or hide the window
 114   virtual bool Show(bool show);
 115
 116   // Is the window shown?
 117   virtual bool IsShown() const;
 118
 119   // Raise the window to the top of the Z order
 120   virtual void Raise();
 121
 122   // Lower the window to the bottom of the Z order
 123   virtual void Lower();
 124
 125   // Is the window enabled?
 126   virtual bool IsEnabled() const;
 127
 128   // For compatibility
 129   inline bool Enabled() const { return IsEnabled(); }
 130
 131   // Dialog support: override these and call
 132   // base class members to add functionality
 133   // that can't be done using validators.
 134
 135   // Transfer values to controls. If returns FALSE,
 136   // it's an application error (pops up a dialog)
 137   virtual bool TransferDataToWindow();
 138
 139   // Transfer values from controls. If returns FALSE,
 140   // transfer failed: don't quit
 141   virtual bool TransferDataFromWindow();
 142
 143   // Validate controls. If returns FALSE,
 144   // validation failed: don't quit
 145   virtual bool Validate();
 146
 147   // Return code for dialogs
 148   inline void SetReturnCode(int retCode);
 149   inline int GetReturnCode();
 150
 151   // Set the cursor
 152   virtual void SetCursor(const wxCursor& cursor);
 153   inline virtual wxCursor *GetCursor() const { return (wxCursor *)& m_windowCursor; };
 154
 155   // Get the window with the focus
 156   static wxWindow *FindFocus();
 157
 158   // Get character size
 159   virtual int GetCharHeight() const;
 160   virtual int GetCharWidth() const;
 161
 162   // Get overall window size
 163   virtual void GetSize(int *width, int *height) const;
 164
 165   // Get window position, relative to parent (or screen if no parent)
 166   virtual void GetPosition(int *x, int *y) const;
 167
 168   // Get client (application-useable) size
 169   virtual void GetClientSize(int *width, int *height) const;
 170
 171   // Set overall size and position
 172   virtual void SetSize(int x, int y, int width, int height, int sizeFlags = wxSIZE_AUTO);
 173   inline virtual void SetSize(int width, int height) { SetSize(-1, -1, width, height, wxSIZE_USE_EXISTING); }
 174   inline virtual void Move(int x, int y) { SetSize(x, y, -1, -1, wxSIZE_USE_EXISTING); }
 175
 176   // Set client size
 177   virtual void SetClientSize(int width, int size);
 178
 179   // Convert client to screen coordinates
 180   virtual void ClientToScreen(int *x, int *y) const;
 181
 182   // Convert screen to client coordinates
 183   virtual void ScreenToClient(int *x, int *y) const;
 184
 185   // Set the focus to this window
 186   virtual void SetFocus();
 187
 188   // Capture/release mouse
 189   virtual void CaptureMouse();
 190   virtual void ReleaseMouse();
 191
 192   // Enable or disable the window
 193   virtual void Enable(bool enable);
 194
 195 #if wxUSE_DRAG_AND_DROP
 196   // Associate a drop target with this window (if the window already had a drop
 197   // target, it's deleted!) and return the current drop target (may be NULL).
 198   void          SetDropTarget(wxDropTarget *pDropTarget);
 199   wxDropTarget *GetDropTarget() const { return m_pDropTarget; }
 200 #endif
 201
 202   // Accept files for dragging
 203   virtual void DragAcceptFiles(bool accept);
 204
 205   // Update region access
 206   virtual wxRegion GetUpdateRegion() const;
 207   virtual bool IsExposed(int x, int y, int w, int h) const;
 208   virtual bool IsExposed(const wxPoint& pt) const;
 209   virtual bool IsExposed(const wxRect& rect) const;
 210
 211   // Set/get the window title
 212   virtual inline void SetTitle(const wxString& WXUNUSED(title)) {};
 213   inline virtual wxString GetTitle() const { return wxString(""); };
 214   // Most windows have the concept of a label; for frames, this is the
 215   // title; for items, this is the label or button text.
 216   inline virtual wxString GetLabel() const { return GetTitle(); }
 217
 218   // Set/get the window name (used for resource setting in X)
 219   inline virtual wxString GetName() const;
 220   inline virtual void SetName(const wxString& name);
 221
 222   // Centre the window
 223   virtual void Centre(int direction) ;
 224   inline void Center(int direction = wxHORIZONTAL) { Centre(direction); }
 225
 226   // Popup a menu
 227   virtual bool PopupMenu(wxMenu *menu, int x, int y);
 228
 229   // Send the window a refresh event
 230   virtual void Refresh(bool eraseBack = TRUE, const wxRect *rect = NULL);
 231
 232   // New functions that will replace the above.
 233   virtual void SetScrollbar(int orient, int pos, int thumbVisible,
 234     int range, bool refresh = TRUE);
 235
 236   virtual void SetScrollPos(int orient, int pos, bool refresh = TRUE);
 237   virtual int GetScrollPos(int orient) const;
 238   virtual int GetScrollRange(int orient) const;
 239   virtual int GetScrollThumb(int orient) const;
 240
 241   virtual void ScrollWindow(int dx, int dy, const wxRect *rect = NULL);
 242
 243   // Caret manipulation
 244   virtual void CreateCaret(int w, int h);
 245   virtual void CreateCaret(const wxBitmap *bitmap);
 246   virtual void DestroyCaret();
 247   virtual void ShowCaret(bool show);
 248   virtual void SetCaretPos(int x, int y);
 249   virtual void GetCaretPos(int *x, int *y) const;
 250
 251   // Tell window how much it can be sized
 252   virtual void SetSizeHints(int minW = -1, int minH = -1, int maxW = -1, int maxH = -1, int incW = -1, int incH = -1);
 253
 254   // Set/get the window's identifier
 255   inline int GetId() const;
 256   inline void SetId(int id);
 257
 258   // Make the window modal (all other windows unresponsive)
 259   virtual void MakeModal(bool modal);
 260
 261   // Get the private handle (platform-dependent)
 262   inline void *GetHandle() const;
 263
 264   // Set/get the window's relatives
 265   inline wxWindow *GetParent() const;
 266   inline void SetParent(wxWindow *p) ;
 267   inline wxWindow *GetGrandParent() const;
 268   inline wxList *GetChildren() const;
 269
 270   // Set/get the window's font
 271   virtual void SetFont(const wxFont& f);
 272   inline virtual wxFont *GetFont() const;
 273
 274   // Set/get the window's validator
 275   void SetValidator(const wxValidator& validator);
 276   inline wxValidator *GetValidator() const;
 277
 278   // Set/get the window's style
 279   inline void SetWindowStyleFlag(long flag);
 280   inline long GetWindowStyleFlag() const;
 281
 282   // Set/get event handler
 283   inline void SetEventHandler(wxEvtHandler *handler);
 284   inline wxEvtHandler *GetEventHandler() const;
 285
 286   // Push/pop event handler (i.e. allow a chain of event handlers
 287   // be searched)
 288   void PushEventHandler(wxEvtHandler *handler) ;
 289   wxEvtHandler *PopEventHandler(bool deleteHandler = FALSE) ;
 290
 291   // Close the window by calling OnClose, posting a deletion
 292   virtual bool Close(bool force = FALSE);
 293
 294   // Destroy the window (delayed, if a managed window)
 295   virtual bool Destroy() ;
 296
 297   // Mode for telling default OnSize members to
 298   // call Layout(), if not using Sizers, just top-down constraints
 299   inline void SetAutoLayout(bool a);
 300   inline bool GetAutoLayout() const;
 301
 302   // Set/get constraints
 303   inline wxLayoutConstraints *GetConstraints() const;
 304   void SetConstraints(wxLayoutConstraints *c);
 305
 306   // Set/get window background colour
 307   inline virtual void SetBackgroundColour(const wxColour& col);
 308   inline virtual wxColour GetBackgroundColour() const;
 309
 310   // Set/get window foreground colour
 311   inline virtual void SetForegroundColour(const wxColour& col);
 312   inline virtual wxColour GetForegroundColour() const;
 313
 314   // Set/get window default background colour (for children to inherit).
 315   // NOTE: these may be removed in later revisions.
 316   inline virtual void SetDefaultBackgroundColour(const wxColour& col);
 317   inline virtual wxColour GetDefaultBackgroundColour(void) const;
 318
 319   // Set/get window default foreground colour (for children to inherit)
 320   inline virtual void SetDefaultForegroundColour(const wxColour& col);
 321   inline virtual wxColour GetDefaultForegroundColour(void) const;
 322
 323   // Get the default button, if there is one
 324   inline virtual wxButton *GetDefaultItem() const;
 325   inline virtual void SetDefaultItem(wxButton *but);
 326
 327   // Override to define new behaviour for default action (e.g. double clicking
 328   // on a listbox)
 329   virtual void OnDefaultAction(wxControl *initiatingItem);
 330
 331   // Resource loading
 332 #if wxUSE_WX_RESOURCES
 333   virtual bool LoadFromResource(wxWindow *parent, const wxString& resourceName, const wxResourceTable *table = NULL);
 334   virtual wxControl *CreateItem(const wxItemResource *childResource, const wxResourceTable *table = NULL);
 335 #endif
 336
 337   // Native resource loading
 338   virtual bool LoadNativeDialog(wxWindow* parent, wxWindowID& id);
 339   virtual bool LoadNativeDialog(wxWindow* parent, const wxString& name);
 340   virtual wxWindow* GetWindowChild1(wxWindowID& id);
 341   virtual wxWindow* GetWindowChild(wxWindowID& id);
 342
 343   virtual void GetTextExtent(const wxString& string, int *x, int *y,
 344                              int *descent = NULL,
 345                              int *externalLeading = NULL,
 346                              const wxFont *theFont = NULL, bool use16 = FALSE) const;
 347
 348   // Is the window retained?
 349   inline bool IsRetained() const;
 350
 351   // Warp the pointer the given position
 352   virtual void WarpPointer(int x_pos, int y_pos) ;
 353
 354   // Clear the window
 355   virtual void Clear();
 356
 357   // Find a window by id or name
 358   virtual wxWindow *FindWindow(long id);
 359   virtual wxWindow *FindWindow(const wxString& name);
 360
 361   // Constraint operations
 362   bool Layout();
 363   void SetSizer(wxSizer *sizer);    // Adds sizer child to this window
 364   inline wxSizer *GetSizer() const ;
 365   inline wxWindow *GetSizerParent() const ;
 366   inline void SetSizerParent(wxWindow *win);
 367
 368   // Do Update UI processing for controls
 369   void UpdateWindowUI();
 370
 371   void OnEraseBackground(wxEraseEvent& event);
 372   void OnChar(wxKeyEvent& event);
 373   void OnPaint(wxPaintEvent& event);
 374   void OnIdle(wxIdleEvent& event);
 375
 376   // Does this window want to accept keyboard focus?
 377   virtual bool AcceptsFocus() const;
 378
 379 public:
 380   ////////////////////////////////////////////////////////////////////////
 381   //// IMPLEMENTATION
 382
 383   // For implementation purposes - sometimes decorations make the client area
 384   // smaller
 385   virtual wxPoint GetClientAreaOrigin() const;
 386
 387   // Makes an adjustment to the window position (for example, a frame that has
 388   // a toolbar that it manages itself).
 389   virtual void AdjustForParentClientOrigin(int& x, int& y, int sizeFlags);
 390
 391   // Executes the default message
 392   virtual long Default();
 393
 394 /* TODO: you may need something like this
 395   // Determine whether 3D effects are wanted
 396   virtual WXDWORD Determine3DEffects(WXDWORD defaultBorderStyle, bool *want3D);
 397 */
 398
 399   virtual void AddChild(wxWindow *child);         // Adds reference to the child object
 400   virtual void RemoveChild(wxWindow *child);   // Removes reference to child
 401                                        // (but doesn't delete the child object)
 402   virtual void DestroyChildren();  // Removes and destroys all children
 403
 404   // Constraint implementation
 405   void UnsetConstraints(wxLayoutConstraints *c);
 406   inline wxList *GetConstraintsInvolvedIn() const ;
 407   // Back-pointer to other windows we're involved with, so if we delete
 408   // this window, we must delete any constraints we're involved with.
 409   void AddConstraintReference(wxWindow *otherWin);
 410   void RemoveConstraintReference(wxWindow *otherWin);
 411   void DeleteRelatedConstraints();
 412
 413   virtual void ResetConstraints();
 414   virtual void SetConstraintSizes(bool recurse = TRUE);
 415   virtual bool LayoutPhase1(int *noChanges);
 416   virtual bool LayoutPhase2(int *noChanges);
 417   virtual bool DoPhase(int);
 418   // Transforms from sizer coordinate space to actual
 419   // parent coordinate space
 420   virtual void TransformSizerToActual(int *x, int *y) const ;
 421
 422   // Set size with transformation to actual coordinates if nec.
 423   virtual void SizerSetSize(int x, int y, int w, int h);
 424   virtual void SizerMove(int x, int y);
 425
 426   // Only set/get the size/position of the constraint (if any)
 427   virtual void SetSizeConstraint(int x, int y, int w, int h);
 428   virtual void MoveConstraint(int x, int y);
 429   virtual void GetSizeConstraint(int *w, int *h) const ;
 430   virtual void GetClientSizeConstraint(int *w, int *h) const ;
 431   virtual void GetPositionConstraint(int *x, int *y) const ;
 432
 433   wxObject *GetChild(int number) const ;
 434
 435   inline void SetShowing(bool show);
 436   inline bool IsUserEnabled() const;
 437   inline bool GetTransparentBackground() const ;
 438
 439   // Responds to colour changes: passes event on to children.
 440   void OnSysColourChanged(wxSysColourChangedEvent& event);
 441
 442   // Transfers data to any child controls
 443   void OnInitDialog(wxInitDialogEvent& event);
 444
 445   // Sends an OnInitDialog event, which in turns transfers data to
 446   // to the window via validators.
 447   virtual void InitDialog();
 448
 449   ////////////////////////////////////////////////////////////////////////
 450   //// PROTECTED DATA
 451 protected:
 452   int                   m_windowId;
 453   long                  m_windowStyle;                  // Store the window's style
 454   wxEvtHandler *        m_windowEventHandler;   // Usually is 'this'
 455   wxLayoutConstraints * m_constraints;           // Constraints for this window
 456   wxList *              m_constraintsInvolvedIn; // List of constraints we're involved in
 457   wxSizer *             m_windowSizer;                       // Window's top-level sizer (if any)
 458   wxWindow *            m_sizerParent;                      // Window's parent sizer (if any)
 459   bool                  m_autoLayout;                            // Whether to call Layout() in OnSize
 460   wxWindow *            m_windowParent;                     // Each window always knows its parent
 461   wxValidator *         m_windowValidator;
 462   int                   m_minSizeX;
 463   int                   m_minSizeY;
 464   int                   m_maxSizeX;
 465   int                   m_maxSizeY;
 466
 467   // Caret data
 468   int                   m_caretWidth;
 469   int                   m_caretHeight;
 470   bool                  m_caretEnabled;
 471   bool                  m_caretShown;
 472   wxFont                m_windowFont;                               // Window's font
 473   wxCursor              m_windowCursor;                        // Window's cursor
 474   wxString              m_windowName;                            // Window name
 475
 476   wxButton *            m_defaultItem;
 477
 478   wxColour              m_backgroundColour ;
 479   wxColour              m_foregroundColour ;
 480   wxColour              m_defaultBackgroundColour;
 481   wxColour              m_defaultForegroundColour;
 482
 483 #if wxUSE_DRAG_AND_DROP
 484   wxDropTarget         *m_pDropTarget;    // the current drop target or NULL
 485 #endif  //USE_DRAG_AND_DROP
 486
 487 public:
 488   wxRegion              m_updateRegion;
 489   wxList *              m_children;                           // Window's children
 490   int                   m_returnCode;
 491
 492 DECLARE_EVENT_TABLE()
 493 };
 494
 495 ////////////////////////////////////////////////////////////////////////
 496 //// INLINES
 497
 498 inline void *wxWindow::GetHandle() const { return (void *)NULL; }
 499 inline int wxWindow::GetId() const { return m_windowId; }
 500 inline void wxWindow::SetId(int id) { m_windowId = id; }
 501 inline wxWindow *wxWindow::GetParent() const { return m_windowParent; }
 502 inline void wxWindow::SetParent(wxWindow *p) { m_windowParent = p; }
 503 inline wxWindow *wxWindow::GetGrandParent() const { return (m_windowParent ? m_windowParent->m_windowParent : NULL); }
 504 inline wxList *wxWindow::GetChildren() const { return m_children; }
 505 inline wxFont *wxWindow::GetFont() const { return (wxFont *) & m_windowFont; }
 506 inline wxString wxWindow::GetName() const { return m_windowName; }
 507 inline void wxWindow::SetName(const wxString& name) { m_windowName = name; }
 508 inline long wxWindow::GetWindowStyleFlag() const { return m_windowStyle; }
 509 inline void wxWindow::SetWindowStyleFlag(long flag) { m_windowStyle = flag; }
 510 inline void wxWindow::SetDoubleClick(bool flag) { m_doubleClickAllowed = flag; }
 511 inline bool wxWindow::GetDoubleClick() const { return m_doubleClickAllowed; }
 512 inline void wxWindow::SetEventHandler(wxEvtHandler *handler) { m_windowEventHandler = handler; }
 513 inline wxEvtHandler *wxWindow::GetEventHandler() const { return m_windowEventHandler; }
 514 inline void wxWindow::SetAutoLayout(bool a) { m_autoLayout = a; }
 515 inline bool wxWindow::GetAutoLayout() const { return m_autoLayout; }
 516 inline wxLayoutConstraints *wxWindow::GetConstraints() const { return m_constraints; }
 517 inline void wxWindow::SetBackgroundColour(const wxColour& col) { m_backgroundColour = col; };
 518 inline wxColour wxWindow::GetBackgroundColour() const { return m_backgroundColour; };
 519 inline void wxWindow::SetForegroundColour(const wxColour& col) { m_foregroundColour = col; };
 520 inline wxColour wxWindow::GetForegroundColour() const { return m_foregroundColour; };
 521 inline void wxWindow::SetDefaultForegroundColour(const wxColour& col) { m_defaultForegroundColour = col; };
 522 inline wxColour wxWindow::GetDefaultForegroundColour(void) const { return m_defaultForegroundColour; };
 523 inline void wxWindow::SetDefaultBackgroundColour(const wxColour& col) { m_defaultBackgroundColour = col; };
 524 inline wxColour wxWindow::GetDefaultBackgroundColour(void) const { return m_defaultBackgroundColour; };
 525
 526 inline wxButton *wxWindow::GetDefaultItem() const { return m_defaultItem; }
 527 inline void wxWindow::SetDefaultItem(wxButton *but) { m_defaultItem = but; }
 528 inline bool wxWindow::IsRetained() const { return ((m_windowStyle & wxRETAINED) == wxRETAINED); }
 529
 530 inline void wxWindow::SetShowing(bool show) { m_isShown = show; }
 531 inline wxList *wxWindow::GetConstraintsInvolvedIn() const { return m_constraintsInvolvedIn; }
 532 inline wxSizer *wxWindow::GetSizer() const { return m_windowSizer; }
 533 inline wxWindow *wxWindow::GetSizerParent() const { return m_sizerParent; }
 534 inline void wxWindow::SetSizerParent(wxWindow *win) { m_sizerParent = win; }
 535 inline wxValidator *wxWindow::GetValidator() const { return m_windowValidator; }
 536 inline bool wxWindow::IsUserEnabled() const { return m_winEnabled; }
 537 inline bool wxWindow::GetTransparentBackground() const { return m_backgroundTransparent; }
 538 inline void wxWindow::SetReturnCode(int retCode) { m_returnCode = retCode; }
 539 inline int wxWindow::GetReturnCode() { return m_returnCode; }
 540
 541 // Get the active window.
 542 wxWindow* WXDLLEXPORT wxGetActiveWindow();
 543
 544 WXDLLEXPORT_DATA(extern wxList) wxTopLevelWindows;
 545
 546 #endif
 547     // _WX_WINDOW_H_