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/////////////////////////////////////////////////////////////////////////////
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// Name: progdlg.h
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2008-03-10 11:24:38 -04:00
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// Purpose: interface of wxProgressDialog
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// Author: wxWidgets team
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// RCS-ID: $Id$
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2010-07-13 09:29:13 -04:00
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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@class wxProgressDialog
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This class represents a dialog that shows a short message and a
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progress bar. Optionally, it can display ABORT and SKIP buttons, and
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the elapsed, remaining and estimated time for the end of the progress.
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Note that you must be aware that wxProgressDialog internally calls
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wxEventLoopBase::YieldFor with @c wxEVT_CATEGORY_UI and @c wxEVT_CATEGORY_USER_INPUT
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and this may cause unwanted re-entrancies or the out-of-order processing
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of pending events (to help preventing the last problem if you're using
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wxProgressDialog in a multi-threaded application you should be sure to use
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wxThreadEvent for your inter-threads communications).
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@beginStyleTable
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@style{wxPD_APP_MODAL}
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Make the progress dialog modal. If this flag is not given, it is
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only "locally" modal - that is the input to the parent window is
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disabled, but not to the other ones.
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@style{wxPD_AUTO_HIDE}
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Causes the progress dialog to disappear from screen as soon as the
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maximum value of the progress meter has been reached.
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If this style is not present, the dialog will become a modal dialog
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(see wxDialog::ShowModal) once the maximum value has been reached
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and wait for the user to dismiss it.
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@style{wxPD_SMOOTH}
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Causes smooth progress of the gauge control (uses a wxGauge with the
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@c wxGA_SMOOTH style).
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@style{wxPD_CAN_ABORT}
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This flag tells the dialog that it should have a "Cancel" button
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which the user may press. If this happens, the next call to
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Update() will return @false.
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@style{wxPD_CAN_SKIP}
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This flag tells the dialog that it should have a "Skip" button
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which the user may press. If this happens, the next call to
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Update() will return @true in its skip parameter.
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@style{wxPD_ELAPSED_TIME}
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This flag tells the dialog that it should show elapsed time (since
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creating the dialog).
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@style{wxPD_ESTIMATED_TIME}
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This flag tells the dialog that it should show estimated time.
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@style{wxPD_REMAINING_TIME}
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This flag tells the dialog that it should show remaining time.
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@endStyleTable
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@library{wxbase}
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@category{cmndlg}
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*/
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class wxProgressDialog : public wxDialog
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{
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public:
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/**
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Constructor. Creates the dialog, displays it and disables user input
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for other windows, or, if @c wxPD_APP_MODAL flag is not given, for its
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parent window only.
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@param title
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Dialog title to show in titlebar.
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@param message
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Message displayed above the progress bar.
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@param maximum
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Maximum value for the progress bar.
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In the generic implementation the progress bar is constructed
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only if this value is greater than zero.
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@param parent
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Parent window.
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@param style
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The dialog style. See wxProgressDialog.
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*/
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wxProgressDialog(const wxString& title, const wxString& message,
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int maximum = 100,
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wxWindow* parent = NULL,
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int style = wxPD_AUTO_HIDE | wxPD_APP_MODAL);
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/**
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Destructor. Deletes the dialog and enables all top level windows.
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*/
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virtual ~wxProgressDialog();
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/**
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Returns the last value passed to the Update() function or
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@c wxNOT_FOUND if the dialog has no progress bar.
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@since 2.9.0
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*/
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int GetValue() const;
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/**
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Returns the maximum value of the progress meter, as passed to
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the constructor or @c wxNOT_FOUND if the dialog has no progress bar.
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@since 2.9.0
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*/
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int GetRange() const;
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/**
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Returns the last message passed to the Update() function;
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if you always passed wxEmptyString to Update() then the message
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set through the constructor is returned.
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@since 2.9.0
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*/
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wxString GetMessage() const;
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/**
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Like Update() but makes the gauge control run in indeterminate mode.
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In indeterminate mode the remaining and the estimated time labels (if
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present) are set to to "Unknown" or to @a newmsg (if it's non-empty).
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Each call to this function moves the progress bar a bit to indicate
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that some progress was done.
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@see wxGauge::Pulse(), Update()
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*/
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virtual bool Pulse(const wxString& newmsg = wxEmptyString, bool* skip = NULL);
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/**
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Can be used to continue with the dialog, after the user had clicked the "Abort" button.
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*/
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void Resume();
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/**
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Changes the maximum value of the progress meter given in the constructor.
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This function can only be called (with a positive value) if the value passed
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in the constructor was positive.
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@since 2.9.1
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*/
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void SetRange(int maximum);
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/**
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Returns true if the "Cancel" button was pressed.
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Normally a Cancel button press is indicated by Update() returning
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@false but sometimes it may be more convenient to check if the dialog
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was cancelled from elsewhere in the code and this function allows to
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do it.
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It always returns @false if the Cancel button is not shown at all.
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@since 2.9.1
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*/
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bool WasCancelled() const;
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/**
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Returns true if the "Skip" button was pressed.
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This is similar to WasCancelled() but returns @true if the "Skip"
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button was pressed, not the "Cancel" one.
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@since 2.9.1
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*/
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bool WasSkipped() const;
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/**
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Updates the dialog, setting the progress bar to the new value and
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updating the message if new one is specified.
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Returns @true unless the "Cancel" button has been pressed.
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If @false is returned, the application can either immediately destroy the
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dialog or ask the user for the confirmation and if the abort is not confirmed
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the dialog may be resumed with Resume() function.
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If @a value is the maximum value for the dialog, the behaviour of the
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function depends on whether @c wxPD_AUTO_HIDE was used when the dialog
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was created. If it was, the dialog is hidden and the function returns
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immediately. If it was not, the dialog becomes a modal dialog and waits
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for the user to dismiss it, meaning that this function does not return
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until this happens.
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2009-03-23 08:31:26 -04:00
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Notice that you may want to call Fit() to change the dialog size to
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conform to the length of the new message if desired. The dialog does
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not do this automatically.
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@param value
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The new value of the progress meter. It should be less than or equal to
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the maximum value given to the constructor.
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@param newmsg
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The new messages for the progress dialog text, if it is
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empty (which is the default) the message is not changed.
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@param skip
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If "Skip" button was pressed since last Update() call,
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this is set to @true.
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*/
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virtual bool Update(int value, const wxString& newmsg = wxEmptyString,
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bool* skip = NULL);
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};
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