include/wx/generic/progdlgg.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/generic/progdlgg.h
   3 // Purpose:     wxGenericProgressDialog 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/dialog.h"
  16
  17 class WXDLLIMPEXP_FWD_CORE wxButton;
  18 class WXDLLIMPEXP_FWD_CORE wxEventLoop;
  19 class WXDLLIMPEXP_FWD_CORE wxGauge;
  20 class WXDLLIMPEXP_FWD_CORE wxStaticText;
  21 class WXDLLIMPEXP_FWD_CORE wxWindowDisabler;
  22
  23 /*
  24     Progress dialog which shows a moving progress bar.
  25     Taken from the Mahogany project.
  26 */
  27 class WXDLLIMPEXP_CORE wxGenericProgressDialog : public wxDialog
  28 {
  29 public:
  30     wxGenericProgressDialog(const wxString& title, const wxString& message,
  31                             int maximum = 100,
  32                             wxWindow *parent = NULL,
  33                             int style = wxPD_APP_MODAL | wxPD_AUTO_HIDE);
  34
  35     virtual ~wxGenericProgressDialog();
  36
  37     virtual bool Update(int value, const wxString& newmsg = wxEmptyString, bool *skip = NULL);
  38     virtual bool Pulse(const wxString& newmsg = wxEmptyString, bool *skip = NULL);
  39
  40     void Resume();
  41
  42     int GetValue() const;
  43     int GetRange() const;
  44     wxString GetMessage() const;
  45
  46     void SetRange(int maximum);
  47
  48     // Return whether "Cancel" or "Skip" button was pressed, always return
  49     // false if the corresponding button is not shown.
  50     bool WasCancelled() const;
  51     bool WasSkipped() const;
  52
  53     // Must provide overload to avoid hiding it (and warnings about it)
  54     virtual void Update() { wxDialog::Update(); }
  55
  56     virtual bool Show( bool show = true );
  57
  58     // This enum is an implementation detail and should not be used
  59     // by user code.
  60     enum State
  61     {
  62         Uncancelable = -1,   // dialog can't be canceled
  63         Canceled,            // can be cancelled and, in fact, was
  64         Continue,            // can be cancelled but wasn't
  65         Finished,            // finished, waiting to be removed from screen
  66         Dismissed            // was closed by user after finishing
  67     };
  68
  69 protected:
  70     // This ctor is used by the native MSW implementation only.
  71     wxGenericProgressDialog(wxWindow *parent, int style);
  72
  73     void Create(const wxString& title,
  74                 const wxString& message,
  75                 int maximum,
  76                 wxWindow *parent,
  77                 int style);
  78
  79     // Update just the m_maximum field, this is used by public SetRange() but,
  80     // unlike it, doesn't update the controls state. This makes it useful for
  81     // both this class and its derived classes that don't use m_gauge to
  82     // display progress.
  83     void SetMaximum(int maximum);
  84
  85     // Return the labels to use for showing the elapsed/estimated/remaining
  86     // times respectively.
  87     static wxString GetElapsedLabel() { return wxGetTranslation("Elapsed time:"); }
  88     static wxString GetEstimatedLabel() { return wxGetTranslation("Estimated time:"); }
  89     static wxString GetRemainingLabel() { return wxGetTranslation("Remaining time:"); }
  90
  91
  92     // Similar to wxWindow::HasFlag() but tests for a presence of a wxPD_XXX
  93     // flag in our (separate) flags instead of using m_windowStyle.
  94     bool HasPDFlag(int flag) const { return (m_pdStyle & flag) != 0; }
  95
  96     // Return the progress dialog style. Prefer to use HasPDFlag() if possible.
  97     int GetPDStyle() const { return m_pdStyle; }
  98
  99
 100     // Updates estimated times from a given progress bar value and stores the
 101     // results in provided arguments.
 102     void UpdateTimeEstimates(int value,
 103                              unsigned long &elapsedTime,
 104                              unsigned long &estimatedTime,
 105                              unsigned long &remainingTime);
 106
 107     // Converts seconds to HH:mm:ss format.
 108     static wxString GetFormattedTime(unsigned long timeInSec);
 109
 110     // callback for optional abort button
 111     void OnCancel(wxCommandEvent&);
 112
 113     // callback for optional skip button
 114     void OnSkip(wxCommandEvent&);
 115
 116     // callback to disable "hard" window closing
 117     void OnClose(wxCloseEvent&);
 118
 119     // called to disable the other windows while this dialog is shown
 120     void DisableOtherWindows();
 121
 122     // must be called to reenable the other windows temporarily disabled while
 123     // the dialog was shown
 124     void ReenableOtherWindows();
 125
 126     // return the top level parent window of this dialog (may be NULL)
 127     wxWindow *GetTopParent() const { return m_parentTop; }
 128
 129
 130     // continue processing or not (return value for Update())
 131     State m_state;
 132
 133     // the maximum value
 134     int m_maximum;
 135
 136 #if defined(__WXMSW__ ) || defined(__WXPM__)
 137     // the factor we use to always keep the value in 16 bit range as the native
 138     // control only supports ranges from 0 to 65,535
 139     size_t m_factor;
 140 #endif // __WXMSW__
 141
 142     // time when the dialog was created
 143     unsigned long m_timeStart;
 144     // time when the dialog was closed or cancelled
 145     unsigned long m_timeStop;
 146     // time between the moment the dialog was closed/cancelled and resume
 147     unsigned long m_break;
 148
 149 private:
 150     // update the label to show the given time (in seconds)
 151     static void SetTimeLabel(unsigned long val, wxStaticText *label);
 152
 153     // common part of all ctors
 154     void Init(wxWindow *parent, int style);
 155
 156     // create the label with given text and another one to show the time nearby
 157     // as the next windows in the sizer, returns the created control
 158     wxStaticText *CreateLabel(const wxString& text, wxSizer *sizer);
 159
 160     // updates the label message
 161     void UpdateMessage(const wxString &newmsg);
 162
 163     // common part of Update() and Pulse(), returns true if not cancelled
 164     bool DoBeforeUpdate(bool *skip);
 165
 166     // common part of Update() and Pulse()
 167     void DoAfterUpdate();
 168
 169     // shortcuts for enabling buttons
 170     void EnableClose();
 171     void EnableSkip(bool enable = true);
 172     void EnableAbort(bool enable = true);
 173     void DisableSkip() { EnableSkip(false); }
 174     void DisableAbort() { EnableAbort(false); }
 175
 176     // the widget displaying current status (may be NULL)
 177     wxGauge *m_gauge;
 178     // the message displayed
 179     wxStaticText *m_msg;
 180     // displayed elapsed, estimated, remaining time
 181     wxStaticText *m_elapsed,
 182                  *m_estimated,
 183                  *m_remaining;
 184
 185     // parent top level window (may be NULL)
 186     wxWindow *m_parentTop;
 187
 188     // Progress dialog styles: this is not the same as m_windowStyle because
 189     // wxPD_XXX constants clash with the existing TLW styles so to be sure we
 190     // don't have any conflicts we just use a separate variable for storing
 191     // them.
 192     int m_pdStyle;
 193
 194     // skip some portion
 195     bool m_skip;
 196
 197 #if !defined(__SMARTPHONE__)
 198     // the abort and skip buttons (or NULL if none)
 199     wxButton *m_btnAbort;
 200     wxButton *m_btnSkip;
 201 #endif
 202
 203     // saves the time when elapsed time was updated so there is only one
 204     // update per second
 205     unsigned long m_last_timeupdate;
 206
 207     // tells how often a change of the estimated time has to be confirmed
 208     // before it is actually displayed - this reduces the frequency of updates
 209     // of estimated and remaining time
 210     int m_delay;
 211
 212     // counts the confirmations
 213     int m_ctdelay;
 214     unsigned long m_display_estimated;
 215
 216     // for wxPD_APP_MODAL case
 217     wxWindowDisabler *m_winDisabler;
 218
 219     // Temporary event loop created by the dialog itself if there is no
 220     // currently active loop when it is created.
 221     wxEventLoop *m_tempEventLoop;
 222
 223
 224     DECLARE_EVENT_TABLE()
 225     wxDECLARE_NO_COPY_CLASS(wxGenericProgressDialog);
 226 };
 227
 228 #endif // __PROGDLGH_G__