progdlgg.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name:        progdlgg.h
// Purpose:     wxProgressDialog class
// Author:      Karsten Ball黡er
// Modified by:
// Created:     09.05.1999
// RCS-ID:      $Id: progdlgg.cpp,v 1.93 2005/04/07 14:52:22 ABX Exp $
// Copyright:   (c) Karsten Ball黡er
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma implementation "progdlgg.h"
#endif

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_PROGRESSDLG

#ifndef WX_PRECOMP
    #include "wx/utils.h"
    #include "wx/frame.h"
    #include "wx/button.h"
    #include "wx/stattext.h"
    #include "wx/sizer.h"
    #include "wx/event.h"
    #include "wx/gauge.h"
    #include "wx/intl.h"
    #include "wx/dcclient.h"
    #include "wx/timer.h"
#endif

#include "wx/generic/progdlgg.h"
#include "wx/settings.h"

// ---------------------------------------------------------------------------
// macros
// ---------------------------------------------------------------------------

/* Macro for avoiding #ifdefs when value have to be different depending on size of
   device we display on - take it from something like wxDesktopPolicy in the future
 */

#if defined(__SMARTPHONE__)
    #define wxLARGESMALL(large,small) small
#else
    #define wxLARGESMALL(large,small) large
#endif

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

#define LAYOUT_MARGIN wxLARGESMALL(8,2)

static const int wxID_SKIP = 32000;  // whatever

// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------

// update the label to show the given time (in seconds)
static void SetTimeLabel(unsigned long val, wxStaticText *label);

// ----------------------------------------------------------------------------
// event tables
// ----------------------------------------------------------------------------

BEGIN_EVENT_TABLE(wxProgressDialog, wxDialog)
    EVT_BUTTON(wxID_CANCEL, wxProgressDialog::OnCancel)
    EVT_BUTTON(wxID_SKIP, wxProgressDialog::OnSkip)

    EVT_CLOSE(wxProgressDialog::OnClose)
END_EVENT_TABLE()

IMPLEMENT_CLASS(wxProgressDialog, wxDialog)

// ============================================================================
// wxProgressDialog implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxProgressDialog creation
// ----------------------------------------------------------------------------

wxProgressDialog::wxProgressDialog(wxString const &title,
                                   wxString const &message,
                                   int maximum,
                                   wxWindow *parent,
                                   int style)
                : wxDialog(parent, wxID_ANY, title),
                  m_skip(false),
                  m_delay(3),
                  m_hasAbortButton(false),
                  m_hasSkipButton(false)
{
    // we may disappear at any moment, let the others know about it
    SetExtraStyle(GetExtraStyle() | wxWS_EX_TRANSIENT);
    m_windowStyle |= style;

    m_hasAbortButton = (style & wxPD_CAN_ABORT) != 0;
    m_hasSkipButton = (style & wxPD_CAN_SKIP) != 0;

    bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);

#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
    // we have to remove the "Close" button from the title bar then as it is
    // confusing to have it - it doesn't work anyhow
    //
    // FIXME: should probably have a (extended?) window style for this
    if ( !m_hasAbortButton )
    {
        EnableCloseButton(false);
    }
#endif // wxMSW

#if defined(__SMARTPHONE__)
    SetLeftMenu();
#endif

    m_state = m_hasAbortButton ? Continue : Uncancelable;
    m_maximum = maximum;

#if defined(__WXMSW__) || defined(__WXPM__)
    // we can't have values > 65,536 in the progress control under Windows, so
    // scale everything down
    m_factor = m_maximum / 65536 + 1;
    m_maximum /= m_factor;
#endif // __WXMSW__

    m_parentTop = wxGetTopLevelParent(parent);

    wxClientDC dc(this);
    dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
    long widthText;
    dc.GetTextExtent(message, &widthText, NULL, NULL, NULL, NULL);

    wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);

    m_msg = new wxStaticText(this, wxID_ANY, message);
    sizer->Add(m_msg, 0, wxLEFT | wxTOP, 2*LAYOUT_MARGIN);

    wxSize sizeDlg,
           sizeLabel = m_msg->GetSize();
    sizeDlg.y = 2*LAYOUT_MARGIN + sizeLabel.y;

    if ( maximum > 0 )
    {
        int gauge_style = wxGA_HORIZONTAL;
        if ( ( style & wxPD_SMOOTH ) == wxPD_SMOOTH )
            gauge_style |= wxGA_SMOOTH;
        m_gauge = new wxGauge(this, wxID_ANY, m_maximum,
                              wxDefaultPosition, wxDefaultSize,
                              gauge_style );

        sizer->Add(m_gauge, 0, wxLEFT | wxRIGHT | wxTOP | wxEXPAND, 2*LAYOUT_MARGIN);
        m_gauge->SetValue(0);

        wxSize sizeGauge = m_gauge->GetSize();
        sizeDlg.y += 2*LAYOUT_MARGIN + sizeGauge.y;
    }
    else
        m_gauge = (wxGauge *)NULL;

    // create the estimated/remaining/total time zones if requested
    m_elapsed = m_estimated = m_remaining = (wxStaticText*)NULL;
    m_display_estimated = m_last_timeupdate = m_break = 0;
    m_ctdelay = 0;

    // if we are going to have at least one label, remmeber it in this var
    wxStaticText *label = NULL;

    // also count how many labels we really have
    size_t nTimeLabels = 0;

    if ( style & wxPD_ELAPSED_TIME )
    {
        nTimeLabels++;

        label =
        m_elapsed = CreateLabel(_("Elapsed time : "), sizer);
    }

    if ( style & wxPD_ESTIMATED_TIME )
    {
        nTimeLabels++;

        label =
        m_estimated = CreateLabel(_("Estimated time : "), sizer);
    }

    if ( style & wxPD_REMAINING_TIME )
    {
        nTimeLabels++;

        label =
        m_remaining = CreateLabel(_("Remaining time : "), sizer);
    }

    if ( nTimeLabels > 0 )
    {
        // set it to the current time
        m_timeStart = wxGetCurrentTime();
        sizeDlg.y += nTimeLabels * (label->GetSize().y + LAYOUT_MARGIN);
    }

#if defined(__SMARTPHONE__)
    if ( m_hasSkipButton )
        SetRightMenu(wxID_SKIP, _("Skip"));
    if ( m_hasAbortButton )
        SetLeftMenu(wxID_CANCEL);
#else
    m_btnAbort = m_btnSkip = (wxButton *)NULL;
    bool sizeDlgModified = false;
    wxBoxSizer *buttonSizer = new wxBoxSizer(wxHORIZONTAL);

    const int sizerFlags =
#if defined(__WXMSW__) || defined(__WXPM__)
                           wxALIGN_RIGHT | wxALL
#else // !MSW
                           wxALIGN_CENTER_HORIZONTAL | wxBOTTOM | wxTOP
#endif // MSW/!MSW
                           ;

    if ( m_hasSkipButton )
    {
        m_btnSkip = new wxButton(this, wxID_SKIP, _("Skip"));

        // Windows dialogs usually have buttons in the lower right corner
        buttonSizer->Add(m_btnSkip, 0, sizerFlags, LAYOUT_MARGIN);
        sizeDlg.y += 2*LAYOUT_MARGIN + wxButton::GetDefaultSize().y;
        sizeDlgModified = true;
    }

    if ( m_hasAbortButton )
    {
        m_btnAbort = new wxButton(this, wxID_CANCEL);

        // Windows dialogs usually have buttons in the lower right corner
        buttonSizer->Add(m_btnAbort, 0, sizerFlags, LAYOUT_MARGIN);
        if(!sizeDlgModified)
            sizeDlg.y += 2*LAYOUT_MARGIN + wxButton::GetDefaultSize().y;
    }

    sizer->Add(buttonSizer, 0, sizerFlags, LAYOUT_MARGIN );
#endif // __SMARTPHONE__/!__SMARTPHONE__

    SetSizerAndFit(sizer);

    if (!isPda)
    {
        sizeDlg.y += 2*LAYOUT_MARGIN;

        // try to make the dialog not square but rectangular of reasonable width
        sizeDlg.x = (wxCoord)wxMax(widthText, 4*sizeDlg.y/3);
        sizeDlg.x *= 3;
        sizeDlg.x /= 2;
        SetClientSize(sizeDlg);
    }

    Centre(wxCENTER_FRAME | wxBOTH);

    if ( style & wxPD_APP_MODAL )
    {
        m_winDisabler = new wxWindowDisabler(this);
    }
    else
    {
        if ( m_parentTop )
            m_parentTop->Disable();
        m_winDisabler = NULL;
    }

    Show();
    Enable();

    // this one can be initialized even if the others are unknown for now
    //
    // NB: do it after calling Layout() to keep the labels correctly aligned
    if ( m_elapsed )
    {
        SetTimeLabel(0, m_elapsed);
    }

    Update();
}

wxStaticText *wxProgressDialog::CreateLabel(const wxString& text,
                                            wxSizer *sizer)
{
    wxBoxSizer *locsizer = new wxBoxSizer(wxLARGESMALL(wxHORIZONTAL,wxVERTICAL));

    wxStaticText *dummy = new wxStaticText(this, wxID_ANY, text);
    wxStaticText *label = new wxStaticText(this, wxID_ANY, _("unknown"));

    // select placement most native or nice on target GUI
#if defined(__SMARTPHONE__)
    // label and time to the left in two rows
    locsizer->Add(dummy, 1, wxALIGN_LEFT);
    locsizer->Add(label, 1, wxALIGN_LEFT);
    sizer->Add(locsizer, 0, wxALIGN_LEFT | wxTOP | wxLEFT, LAYOUT_MARGIN);
#elif defined(__WXMSW__) || defined(__WXPM__) || defined(__WXMAC__)
    // label and time centered in one row
    locsizer->Add(dummy, 1, wxLARGESMALL(wxALIGN_RIGHT,wxALIGN_LEFT));
    locsizer->Add(label, 1, wxALIGN_LEFT | wxLEFT, LAYOUT_MARGIN);
    sizer->Add(locsizer, 0, wxALIGN_CENTER_HORIZONTAL | wxTOP, LAYOUT_MARGIN);
#else
    // label and time to the right in one row