include/wx/display.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/display.h
   3 // Purpose:     wxDisplay class
   4 // Author:      Royce Mitchell III
   5 // Modified by: Vadim Zeitlin (resolution changes, display modes, ...)
   6 // Created:     06/21/02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2002-2003 wxWindows team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DISPLAY_H_BASE_
  13 #define _WX_DISPLAY_H_BASE_
  14
  15 #if wxUSE_DISPLAY
  16
  17 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  18     #pragma interface "displaybase.h"
  19 #endif
  20
  21 #include "wx/dynarray.h"
  22 #include "wx/vidmode.h"
  23
  24 class WXDLLEXPORT wxWindow;
  25 class WXDLLEXPORT wxPoint;
  26 class WXDLLEXPORT wxRect;
  27 class WXDLLEXPORT wxString;
  28
  29 WX_DECLARE_EXPORTED_OBJARRAY(wxVideoMode, wxArrayVideoModes);
  30
  31 // default, uninitialized, video mode object
  32 WXDLLEXPORT_DATA(extern const wxVideoMode) wxDefaultVideoMode;
  33
  34 // ----------------------------------------------------------------------------
  35 // wxDisplayBase: represents a display/monitor attached to the system
  36 // ----------------------------------------------------------------------------
  37
  38 class WXDLLEXPORT wxDisplayBase
  39 {
  40 public:
  41     // initialize the object containing all information about the given
  42     // display
  43     //
  44     // the displays are numbered from 0 to GetCount() - 1, 0 is always the
  45     // primary display and the only one which is always supported
  46     wxDisplayBase(size_t index = 0);
  47
  48     // return the number of available displays, valid parameters to
  49     // wxDisplay ctor are from 0 up to this number
  50     static size_t GetCount();
  51
  52     // find the display where the given point lies, return wxNOT_FOUND if
  53     // it doesn't belong to any display
  54     static int GetFromPoint(const wxPoint& pt);
  55
  56     // find the display where the given window lies, return wxNOT_FOUND if it
  57     // is not shown at all
  58     static int GetFromWindow(wxWindow *window);
  59
  60
  61     // return true if the object was initialized successfully
  62     virtual bool IsOk() const { return true; }
  63
  64     // get the display size
  65     virtual wxRect GetGeometry() const = 0;
  66
  67     // name may be empty
  68     virtual wxString GetName() const = 0;
  69
  70     // display 0 is always the primary display
  71     bool IsPrimary() const { return m_index == 0; }
  72
  73
  74     // enumerate all video modes supported by this display matching the given
  75     // one (in the sense of wxVideoMode::Match())
  76     //
  77     // as any mode matches the default value of the argument and there is
  78     // always at least one video mode supported by display, the returned array
  79     // is only empty for the default value of the argument if this function is
  80     // not supported at all on this platform
  81     virtual wxArrayVideoModes
  82         GetModes(const wxVideoMode& mode = wxDefaultVideoMode) const = 0;
  83
  84     // get current video mode
  85     virtual wxVideoMode GetCurrentMode() const = 0;
  86
  87     // change current mode, return true if succeeded, false otherwise
  88     //
  89     // for the default value of the argument restores the video mode to default
  90     virtual bool ChangeMode(const wxVideoMode& mode = wxDefaultVideoMode) = 0;
  91
  92     // restore the default video mode (just a more readable synonym)
  93     void ResetMode() { (void)ChangeMode(); }
  94
  95     // virtual dtor as for any base class
  96     virtual ~wxDisplayBase() { }
  97
  98 protected:
  99     // the index of this display (0 is always the primary one)
 100     size_t m_index;
 101
 102     DECLARE_NO_COPY_CLASS(wxDisplayBase)
 103 };
 104
 105
 106 #if defined(__WXMSW__)
 107     #include "wx/msw/display.h"
 108 #elif defined(__WXMOTIF__)
 109     #include "wx/unix/displayx11.h"
 110 #elif defined(__WXGTK__)
 111     #include "wx/unix/displayx11.h"
 112 #elif defined(__WXMAC__)
 113     #include "wx/mac/display.h"
 114 #elif defined(__WXPM__)
 115     #include "wx/os2/display.h"
 116 #endif
 117
 118 #endif // wxUSE_DISPLAY
 119
 120 #endif // _WX_DISPLAY_H_BASE_