include/wx/generic/progdlgg.h

   1 ////////////////////////////////////////////////////
   2 // Name:        progdlgg.h
   3 // Purpose:     wxProgressDialog class
   4 // Author:      Karsten Ballüder
   5 // Modified by:
   6 // Created:     09.05.1999
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Karsten Ballüder
   9 // Licence:     wxWindows license
  10 ////////////////////////////////////////////////////
  11
  12 #ifndef __PROGDLGH_G__
  13 #define __PROGDLGH_G__
  14
  15 #ifdef __GNUG__
  16 #pragma interface "progdlgg.h"
  17 #endif
  18
  19 #include "wx/setup.h"
  20
  21 #if wxUSE_PROGRESSDLG
  22
  23 #include "wx/dialog.h"
  24
  25 class WXDLLEXPORT wxButton;
  26 class WXDLLEXPORT wxGauge;
  27 class WXDLLEXPORT wxStaticText;
  28
  29 /* Progress dialog which shows a moving progress bar.
  30     Taken from the Mahogany project.*/
  31
  32 class WXDLLEXPORT wxProgressDialog : public wxDialog
  33 {
  34 DECLARE_DYNAMIC_CLASS(wxProgressDialog)
  35 public:
  36    /* Creates and displays dialog, disables event handling for other
  37        frames or parent frame to avoid recursion problems.
  38        @param title title for window
  39        @param message message to display in window
  40        @param maximum value for status bar, if <= 0, no bar is shown
  41        @param parent window or NULL
  42        @param style is the bit mask of wxPD_XXX constants from wx/defs.h
  43    */
  44    wxProgressDialog(const wxString &title, wxString const &message,
  45                     int maximum = 100,
  46                     wxWindow *parent = NULL,
  47                     int style = wxPD_APP_MODAL | wxPD_AUTO_HIDE);
  48    /* Destructor.
  49        Re-enables event handling for other windows.
  50    */
  51    ~wxProgressDialog();
  52
  53    /* Update the status bar to the new value.
  54        @param value new value
  55        @param newmsg if used, new message to display
  56        @returns true if ABORT button has not been pressed
  57    */
  58    bool Update(int value, const wxString& newmsg = wxT(""));
  59
  60    /* Can be called to continue after the cancel button has been pressed, but
  61        the program decided to continue the operation (e.g., user didn't
  62        confirm it)
  63    */
  64    void Resume() { m_state = Continue; }
  65
  66 protected:
  67    // callback for optional abort button
  68    void OnCancel(wxCommandEvent& event);
  69
  70    // callback to disable "hard" window closing
  71    void OnClose(wxCloseEvent& event);
  72
  73    // must be called to reenable the other windows temporarily disabled while
  74    // the dialog was shown
  75    void ReenableOtherWindows();
  76
  77 private:
  78    // create the label with given text and another one to show the time nearby
  79    // under the lastWindow and modify it to be the same as the control created
  80    // (which is returned)
  81    wxStaticText *CreateLabel(const wxString& text, wxWindow **lastWindow);
  82
  83    // the status bar
  84    wxGauge *m_gauge;
  85    // the message displayed
  86    wxStaticText *m_msg;
  87    // displayed elapsed, estimated, remaining time
  88    class wxStaticText *m_elapsed,
  89                       *m_estimated,
  90                       *m_remaining;
  91    // time when the dialog was created
  92    unsigned long m_timeStart;
  93
  94    // parent top level window (may be NULL)
  95    wxWindow *m_parentTop;
  96
  97    // continue processing or not (return value for Update())
  98    enum
  99    {
 100       Uncancelable = -1,   // dialog can't be canceled
 101       Canceled,            // can be cancelled and, in fact, was
 102       Continue,            // can be cancelled but wasn't
 103       Finished             // finished, waiting to be removed from screen
 104    } m_state;
 105
 106    // the abort button (or NULL if none)
 107    wxButton *m_btnAbort;
 108
 109    // the maximum value
 110    int m_maximum;
 111
 112 #ifdef __WXMSW__
 113    // the factor we use to always keep the value in 16 bit range as the native
 114    // control only supports ranges from 0 to 65,535
 115    size_t m_factor;
 116 #endif // __WXMSW__
 117
 118    // for wxPD_APP_MODAL case
 119    class WXDLLEXPORT wxWindowDisabler *m_winDisabler;
 120
 121    DECLARE_EVENT_TABLE()
 122 private:
 123     // Virtual function hiding supression
 124     virtual void Update() { wxDialog::Update(); }
 125 };
 126 #endif
 127
 128 #endif
 129     // __PROGDLGH_G__