f994a8ac8d
Although the information about "Cancel" and "Skip" buttons presses is returned from Update(), sometimes it may be more convenient to ask the dialog about whether it was cancelled or skipped instead of storing it in the program itself. Add the methods which allow to check for this. Closes #10903. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@64057 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
196 lines
7.2 KiB
Objective-C
196 lines
7.2 KiB
Objective-C
/////////////////////////////////////////////////////////////////////////////
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// Name: progdlg.h
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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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// Licence: wxWindows license
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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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this results in processing of pending events and may cause
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unwanted re-entrancies.
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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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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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See @c wxPD_AUTO_HIDE style for more info about the behaviour of
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wxProgressDialog when @a value is the maximum value given in the ctor.
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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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