include/wx/generic/progdlgg.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        progdlgg.h
   3 // Purpose:     wxProgressDialog class
   4 // Author:      Karsten Ballueder
   5 // Modified by: Francesco Montorsi
   6 // Created:     09.05.1999
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Karsten Ballueder
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __PROGDLGH_G__
  13 #define __PROGDLGH_G__
  14
  15 #include "wx/defs.h"
  16 #include "wx/progdlg.h"
  17
  18 #if wxUSE_PROGRESSDLG
  19
  20 #include "wx/dialog.h"
  21
  22 class WXDLLIMPEXP_FWD_CORE wxButton;
  23 class WXDLLIMPEXP_FWD_CORE wxGauge;
  24 class WXDLLIMPEXP_FWD_CORE wxStaticText;
  25
  26 /*
  27     Progress dialog which shows a moving progress bar.
  28     Taken from the Mahogany project.
  29 */
  30 class WXDLLIMPEXP_CORE wxProgressDialog : public wxDialog
  31 {
  32 public:
  33     wxProgressDialog(const wxString& title, const wxString& message,
  34                      int maximum = 100,
  35                      wxWindow *parent = NULL,
  36                      int style = wxPD_APP_MODAL | wxPD_AUTO_HIDE);
  37
  38     virtual ~wxProgressDialog();
  39
  40     virtual bool Update(int value, const wxString& newmsg = wxEmptyString, bool *skip = NULL);
  41     virtual bool Pulse(const wxString& newmsg = wxEmptyString, bool *skip = NULL);
  42
  43     void Resume();
  44
  45     int GetValue() const;
  46     int GetRange() const;
  47     wxString GetMessage() const;
  48
  49     void SetRange(int maximum);
  50
  51     // Return whether "Cancel" or "Skip" button was pressed, always return
  52     // false if the corresponding button is not shown.
  53     bool WasCancelled() const;
  54     bool WasSkipped() const;
  55
  56     // Must provide overload to avoid hiding it (and warnings about it)
  57     virtual void Update() { wxDialog::Update(); }
  58
  59     virtual bool Show( bool show = true );
  60
  61 protected:
  62     // callback for optional abort button
  63     void OnCancel(wxCommandEvent&);
  64
  65     // callback for optional skip button
  66     void OnSkip(wxCommandEvent&);
  67
  68     // callback to disable "hard" window closing
  69     void OnClose(wxCloseEvent&);
  70
  71     // must be called to reenable the other windows temporarily disabled while
  72     // the dialog was shown
  73     void ReenableOtherWindows();
  74
  75 private:
  76     // create the label with given text and another one to show the time nearby
  77     // as the next windows in the sizer, returns the created control
  78     wxStaticText *CreateLabel(const wxString& text, wxSizer *sizer);
  79
  80     // updates the label message
  81     void UpdateMessage(const wxString &newmsg);
  82
  83     // common part of Update() and Pulse(), returns true if not cancelled
  84     bool DoBeforeUpdate(bool *skip);
  85
  86     // common part of Update() and Pulse()
  87     void DoAfterUpdate();
  88
  89     // shortcuts for enabling buttons
  90     void EnableClose();
  91     void EnableSkip(bool enable = true);
  92     void EnableAbort(bool enable = true);
  93     void DisableSkip() { EnableSkip(false); }
  94     void DisableAbort() { EnableAbort(false); }
  95
  96     // the widget displaying current status (may be NULL)
  97     wxGauge *m_gauge;
  98     // the message displayed
  99     wxStaticText *m_msg;
 100     // displayed elapsed, estimated, remaining time
 101     wxStaticText *m_elapsed,
 102                  *m_estimated,
 103                  *m_remaining;
 104     // time when the dialog was created
 105     unsigned long m_timeStart;
 106     // time when the dialog was closed or cancelled
 107     unsigned long m_timeStop;
 108     // time between the moment the dialog was closed/cancelled and resume
 109     unsigned long m_break;
 110
 111     // parent top level window (may be NULL)
 112     wxWindow *m_parentTop;
 113
 114     // continue processing or not (return value for Update())
 115     enum
 116     {
 117         Uncancelable = -1,   // dialog can't be canceled
 118         Canceled,            // can be cancelled and, in fact, was
 119         Continue,            // can be cancelled but wasn't
 120         Finished             // finished, waiting to be removed from screen
 121     } m_state;
 122
 123     // skip some portion
 124     bool m_skip;
 125
 126 #if !defined(__SMARTPHONE__)
 127     // the abort and skip buttons (or NULL if none)
 128     wxButton *m_btnAbort;
 129     wxButton *m_btnSkip;
 130 #endif
 131
 132     // the maximum value
 133     int m_maximum;
 134
 135     // saves the time when elapsed time was updated so there is only one
 136     // update per second
 137     unsigned long m_last_timeupdate;
 138     // tells how often a change of the estimated time has to be confirmed
 139     // before it is actually displayed - this reduces the frequence of updates
 140     // of estimated and remaining time
 141     const int m_delay;
 142     // counts the confirmations
 143     int m_ctdelay;
 144     unsigned long m_display_estimated;
 145
 146     bool m_hasAbortButton,
 147          m_hasSkipButton;
 148
 149 #if defined(__WXMSW__ ) || defined(__WXPM__)
 150     // the factor we use to always keep the value in 16 bit range as the native
 151     // control only supports ranges from 0 to 65,535
 152     size_t m_factor;
 153 #endif // __WXMSW__
 154
 155     // for wxPD_APP_MODAL case
 156     class WXDLLIMPEXP_FWD_CORE wxWindowDisabler *m_winDisabler;
 157
 158     DECLARE_EVENT_TABLE()
 159     DECLARE_DYNAMIC_CLASS(wxProgressDialog)
 160     wxDECLARE_NO_COPY_CLASS(wxProgressDialog);
 161 };
 162
 163 #endif // wxUSE_PROGRESSDLG
 164
 165 #endif // __PROGDLGH_G__