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tipdlg.cpp
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C/C++ Source or Header
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2002-09-14
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309 lines
///////////////////////////////////////////////////////////////////////////////
// Name: tipdlg.cpp
// Purpose: implementation of wxTipDialog
// Author: Vadim Zeitlin
// Modified by:
// Created: 28.06.99
// RCS-ID: $Id: tipdlg.cpp,v 1.21 2002/09/14 02:10:24 DW Exp $
// Copyright: (c) Vadim Zeitlin
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "tipdlg.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_STARTUP_TIPS
#ifndef WX_PRECOMP
#include "wx/button.h"
#include "wx/checkbox.h"
#include "wx/statbox.h"
#include "wx/dialog.h"
#include "wx/icon.h"
#include "wx/intl.h"
#include "wx/settings.h"
#include "wx/textctrl.h"
#include "wx/statbmp.h"
#include "wx/stattext.h"
#include "wx/sizer.h"
#endif // WX_PRECOMP
#include "wx/statline.h"
#include "wx/artprov.h"
#include "wx/tipdlg.h"
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
static const int wxID_NEXT_TIP = -100; // whatever
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// an implementation which takes the tips from the text file - each line
// represents a tip
class WXDLLEXPORT wxFileTipProvider : public wxTipProvider
{
public:
wxFileTipProvider(const wxString& filename, size_t currentTip);
virtual wxString GetTip();
private:
wxTextFile m_textfile;
};
#ifdef __WIN32__
// TODO an implementation which takes the tips from the given registry key
class WXDLLEXPORT wxRegTipProvider : public wxTipProvider
{
public:
wxRegTipProvider(const wxString& keyname);
virtual wxString GetTip();
};
// Empty implementation for now to keep the linker happy
wxString wxRegTipProvider::GetTip()
{
return wxEmptyString;
}
#endif // __WIN32__
// the dialog we show in wxShowTip()
class WXDLLEXPORT wxTipDialog : public wxDialog
{
public:
wxTipDialog(wxWindow *parent,
wxTipProvider *tipProvider,
bool showAtStartup);
// the tip dialog has "Show tips on startup" checkbox - return TRUE if it
// was checked (or wasn't unchecked)
bool ShowTipsOnStartup() const { return m_checkbox->GetValue(); }
// sets the (next) tip text
void SetTipText() { m_text->SetValue(m_tipProvider->GetTip()); }
// "Next" button handler
void OnNextTip(wxCommandEvent& WXUNUSED(event)) { SetTipText(); }
private:
wxTipProvider *m_tipProvider;
wxTextCtrl *m_text;
wxCheckBox *m_checkbox;
DECLARE_EVENT_TABLE()
};
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxFileTipProvider
// ----------------------------------------------------------------------------
wxFileTipProvider::wxFileTipProvider(const wxString& filename,
size_t currentTip)
: wxTipProvider(currentTip), m_textfile(filename)
{
m_textfile.Open();
}
wxString wxFileTipProvider::GetTip()
{
size_t count = m_textfile.GetLineCount();
if ( !count )
{
return _("Tips not available, sorry!");
}
wxString tip;
// Comments start with a # symbol.
// Loop reading lines until get the first one that isn't a comment.
// The max number of loop executions is the number of lines in the
// textfile so that can't go into an eternal loop in the [oddball]
// case of a comment-only tips file, or the developer has vetoed
// them all via PreprecessTip().
for ( size_t i=0; i < count; i++ )
{
// The current tip may be at the last line of the textfile, (or
// past it, if the number of lines in the textfile changed, such
// as changing to a different textfile, with less tips). So check
// to see at last line of text file, (or past it)...
if ( m_currentTip >= count )
{
// .. and if so, wrap back to line 0.
m_currentTip = 0;
}
// Read the tip, and increment the current tip counter.
tip = m_textfile.GetLine(m_currentTip++);
// Allow a derived class's overrided virtual to modify the tip
// now if so desired.
tip = PreprocessTip(tip);
// Break if tip isn't a comment, and isn't an empty string
// (or only stray space characters).
if ( !tip.StartsWith(wxT("#")) && (tip.Trim() != wxEmptyString) )
{
break;
}
}
// If tip starts with '_(', then it is a gettext string of format
// _("My \"global\" tip text") so first strip off the leading '_("'...
if ( tip.StartsWith(wxT("_(\"" ), &tip))
{
//...and strip off the trailing '")'...
tip = tip.BeforeLast(wxT('\"'));
// ...and replace escaped quotes
tip.Replace(wxT("\\\""), wxT("\""));
}
return tip;
}
// ----------------------------------------------------------------------------
// wxTipDialog
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(wxTipDialog, wxDialog)
EVT_BUTTON(wxID_NEXT_TIP, wxTipDialog::OnNextTip)
END_EVENT_TABLE()
wxTipDialog::wxTipDialog(wxWindow *parent,
wxTipProvider *tipProvider,
bool showAtStartup)
: wxDialog(parent, -1, _("Tip of the Day"),
wxDefaultPosition, wxDefaultSize,
wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
{
m_tipProvider = tipProvider;
// 1) create all controls in tab order
wxButton *btnClose = new wxButton(this, wxID_CANCEL, _("&Close"));
m_checkbox = new wxCheckBox(this, -1, _("&Show tips at startup"));
m_checkbox->SetValue(showAtStartup);
wxButton *btnNext = new wxButton(this, wxID_NEXT_TIP, _("&Next Tip"));
wxStaticText *text = new wxStaticText(this, -1, _("Did you know..."), wxDefaultPosition, wxSize(-1,30) );
#if defined(__WXMSW__) || defined(__WXPM__)
text->SetFont(wxFont(16, wxSWISS, wxNORMAL, wxBOLD));
#else
text->SetFont(wxFont(18, wxSWISS, wxNORMAL, wxBOLD));
#endif
//
// text->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
m_text = new wxTextCtrl(this, -1, wxT(""),
wxDefaultPosition, wxSize(200, 160),
wxTE_MULTILINE |
wxTE_READONLY |
wxTE_NO_VSCROLL |
wxTE_RICH | // a hack to get rid of vert scrollbar
wxSUNKEN_BORDER);
#if defined(__WXMSW__)
m_text->SetFont(wxFont(12, wxSWISS, wxNORMAL, wxNORMAL));
#else
m_text->SetFont(wxFont(14, wxSWISS, wxNORMAL, wxNORMAL));
#endif
//#if defined(__WXPM__)
//
// The only way to get icons into an OS/2 static bitmap control
//
// wxBitmap vBitmap;
// vBitmap.SetId(wxICON_TIP); // OS/2 specific bitmap method--OS/2 wxBitmaps all have an ID.
// // and for StatBmp's under OS/2 it MUST be a valid resource ID.
//
// wxStaticBitmap* bmp = new wxStaticBitmap(this, -1, vBitmap);
//
//#else
wxIcon icon = wxArtProvider::GetIcon(wxART_TIP, wxART_CMN_DIALOG);
wxStaticBitmap *bmp = new wxStaticBitmap(this, -1, icon);
//#endif
// 2) put them in boxes
wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
wxBoxSizer *icon_text = new wxBoxSizer( wxHORIZONTAL );
icon_text->Add( bmp, 0, wxCENTER );
icon_text->Add( text, 1, wxCENTER | wxLEFT, 20 );
topsizer->Add( icon_text, 0, wxEXPAND | wxALL, 10 );
topsizer->Add( m_text, 1, wxEXPAND | wxLEFT|wxRIGHT, 10 );
wxBoxSizer *bottom = new wxBoxSizer( wxHORIZONTAL );
bottom->Add( m_checkbox, 0, wxCENTER );
bottom->Add( 10,10,1 );
bottom->Add( btnNext, 0, wxCENTER | wxLEFT, 10 );
bottom->Add( btnClose, 0, wxCENTER | wxLEFT, 10 );
topsizer->Add( bottom, 0, wxEXPAND | wxALL, 10 );
SetTipText();
SetAutoLayout(TRUE);
SetSizer( topsizer );
topsizer->SetSizeHints( this );
topsizer->Fit( this );
Centre(wxBOTH | wxCENTER_FRAME);
}
// ----------------------------------------------------------------------------
// our public interface
// ----------------------------------------------------------------------------
wxTipProvider *wxCreateFileTipProvider(const wxString& filename,
size_t currentTip)
{
return new wxFileTipProvider(filename, currentTip);
}
bool wxShowTip(wxWindow *parent,
wxTipProvider *tipProvider,
bool showAtStartup)
{
wxTipDialog dlg(parent, tipProvider, showAtStartup);
dlg.ShowModal();
return dlg.ShowTipsOnStartup();
}
#endif // wxUSE_STARTUP_TIPS