src/generic/tipdlg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tipdlg.cpp
   3 // Purpose:     implementation of wxTipDialog
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     28.06.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "tipdlg.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_STARTUP_TIPS
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/button.h"
  35     #include "wx/checkbox.h"
  36     #include "wx/statbox.h"
  37     #include "wx/dialog.h"
  38     #include "wx/icon.h"
  39     #include "wx/intl.h"
  40     #include "wx/settings.h"
  41     #include "wx/textctrl.h"
  42     #include "wx/statbmp.h"
  43     #include "wx/stattext.h"
  44     #include "wx/sizer.h"
  45 #endif // WX_PRECOMP
  46
  47 #include "wx/statline.h"
  48 #include "wx/artprov.h"
  49
  50 #include "wx/tipdlg.h"
  51
  52 // ----------------------------------------------------------------------------
  53 // constants
  54 // ----------------------------------------------------------------------------
  55
  56 static const int wxID_NEXT_TIP = -100;  // whatever
  57
  58 // ----------------------------------------------------------------------------
  59 // private classes
  60 // ----------------------------------------------------------------------------
  61
  62 // an implementation which takes the tips from the text file - each line
  63 // represents a tip
  64 class WXDLLEXPORT wxFileTipProvider : public wxTipProvider
  65 {
  66 public:
  67     wxFileTipProvider(const wxString& filename, size_t currentTip);
  68
  69     virtual wxString GetTip();
  70
  71 private:
  72     wxTextFile m_textfile;
  73 };
  74
  75 #ifdef __WIN32__
  76 // TODO an implementation which takes the tips from the given registry key
  77 class WXDLLEXPORT wxRegTipProvider : public wxTipProvider
  78 {
  79 public:
  80     wxRegTipProvider(const wxString& keyname);
  81
  82     virtual wxString GetTip();
  83 };
  84
  85 // Empty implementation for now to keep the linker happy
  86 wxString wxRegTipProvider::GetTip()
  87 {
  88     return wxEmptyString;
  89 }
  90
  91 #endif // __WIN32__
  92
  93 // the dialog we show in wxShowTip()
  94 class WXDLLEXPORT wxTipDialog : public wxDialog
  95 {
  96 public:
  97     wxTipDialog(wxWindow *parent,
  98                 wxTipProvider *tipProvider,
  99                 bool showAtStartup);
 100
 101     // the tip dialog has "Show tips on startup" checkbox - return TRUE if it
 102     // was checked (or wasn't unchecked)
 103     bool ShowTipsOnStartup() const { return m_checkbox->GetValue(); }
 104
 105     // sets the (next) tip text
 106     void SetTipText() { m_text->SetValue(m_tipProvider->GetTip()); }
 107
 108     // "Next" button handler
 109     void OnNextTip(wxCommandEvent& WXUNUSED(event)) { SetTipText(); }
 110
 111 private:
 112     wxTipProvider *m_tipProvider;
 113
 114     wxTextCtrl *m_text;
 115     wxCheckBox *m_checkbox;
 116
 117     DECLARE_EVENT_TABLE()
 118     DECLARE_NO_COPY_CLASS(wxTipDialog)
 119 };
 120
 121 // ============================================================================
 122 // implementation
 123 // ============================================================================
 124
 125 // ----------------------------------------------------------------------------
 126 // wxFileTipProvider
 127 // ----------------------------------------------------------------------------
 128
 129 wxFileTipProvider::wxFileTipProvider(const wxString& filename,
 130                                      size_t currentTip)
 131                  : wxTipProvider(currentTip), m_textfile(filename)
 132 {
 133     m_textfile.Open();
 134 }
 135
 136 wxString wxFileTipProvider::GetTip()
 137 {
 138     size_t count = m_textfile.GetLineCount();
 139     if ( !count )
 140     {
 141         return _("Tips not available, sorry!");
 142     }
 143
 144     wxString tip;
 145
 146     // Comments start with a # symbol.
 147     // Loop reading lines until get the first one that isn't a comment.
 148     // The max number of loop executions is the number of lines in the
 149     // textfile so that can't go into an eternal loop in the [oddball]
 150     // case of a comment-only tips file, or the developer has vetoed
 151     // them all via PreprecessTip().
 152     for ( size_t i=0; i < count; i++ )
 153     {
 154         // The current tip may be at the last line of the textfile, (or
 155         // past it, if the number of lines in the textfile changed, such
 156         // as changing to a different textfile, with less tips). So check
 157         // to see at last line of text file, (or past it)...
 158         if ( m_currentTip >= count )
 159         {
 160             // .. and if so, wrap back to line 0.
 161             m_currentTip = 0;
 162         }
 163
 164         // Read the tip, and increment the current tip counter.
 165         tip = m_textfile.GetLine(m_currentTip++);
 166
 167         // Allow a derived class's overrided virtual to modify the tip
 168         // now if so desired.
 169         tip = PreprocessTip(tip);
 170
 171         // Break if tip isn't a comment, and isn't an empty string
 172         // (or only stray space characters).
 173         if ( !tip.StartsWith(wxT("#")) && (tip.Trim() != wxEmptyString) )
 174         {
 175             break;
 176         }
 177     }
 178
 179     // If tip starts with '_(', then it is a gettext string of format
 180     // _("My \"global\" tip text") so first strip off the leading '_("'...
 181     if ( tip.StartsWith(wxT("_(\"" ), &tip))
 182     {
 183         //...and strip off the trailing '")'...
 184         tip = tip.BeforeLast(wxT('\"'));
 185         // ...and replace escaped quotes
 186         tip.Replace(wxT("\\\""), wxT("\""));
 187     }
 188
 189     return tip;
 190 }
 191
 192 // ----------------------------------------------------------------------------
 193 // wxTipDialog
 194 // ----------------------------------------------------------------------------
 195
 196 BEGIN_EVENT_TABLE(wxTipDialog, wxDialog)
 197     EVT_BUTTON(wxID_NEXT_TIP, wxTipDialog::OnNextTip)
 198 END_EVENT_TABLE()
 199
 200 wxTipDialog::wxTipDialog(wxWindow *parent,
 201                          wxTipProvider *tipProvider,
 202                          bool showAtStartup)
 203            : wxDialog(parent, -1, _("Tip of the Day"),
 204                       wxDefaultPosition, wxDefaultSize,
 205                       wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 206 {
 207     m_tipProvider = tipProvider;
 208
 209     // 1) create all controls in tab order
 210
 211     wxButton *btnClose = new wxButton(this, wxID_CANCEL, _("&Close"));
 212
 213     m_checkbox = new wxCheckBox(this, -1, _("&Show tips at startup"));
 214     m_checkbox->SetValue(showAtStartup);
 215
 216     wxButton *btnNext = new wxButton(this, wxID_NEXT_TIP, _("&Next Tip"));
 217
 218     wxStaticText *text = new wxStaticText(this, -1, _("Did you know..."), wxDefaultPosition, wxSize(-1,30) );
 219 #if defined(__WXMSW__) || defined(__WXPM__)
 220     text->SetFont(wxFont(16, wxSWISS, wxNORMAL, wxBOLD));
 221 #else
 222     text->SetFont(wxFont(18, wxSWISS, wxNORMAL, wxBOLD));
 223 #endif
 224 //
 225 //    text->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
 226
 227     m_text = new wxTextCtrl(this, -1, wxT(""),
 228                             wxDefaultPosition, wxSize(200, 160),
 229                             wxTE_MULTILINE |
 230                             wxTE_READONLY |
 231                             wxTE_NO_VSCROLL |
 232                             wxTE_RICH | // a hack to get rid of vert scrollbar
 233                             wxSUNKEN_BORDER);
 234 #if defined(__WXMSW__)
 235     m_text->SetFont(wxFont(12, wxSWISS, wxNORMAL, wxNORMAL));
 236 #else
 237     m_text->SetFont(wxFont(14, wxSWISS, wxNORMAL, wxNORMAL));
 238 #endif
 239
 240 //#if defined(__WXPM__)
 241     //
 242     // The only way to get icons into an OS/2 static bitmap control
 243     //
 244 //    wxBitmap                        vBitmap;
 245
 246 //    vBitmap.SetId(wxICON_TIP); // OS/2 specific bitmap method--OS/2 wxBitmaps all have an ID.
 247 //                               // and for StatBmp's under OS/2 it MUST be a valid resource ID.
 248 //
 249 //    wxStaticBitmap*                 bmp = new wxStaticBitmap(this, -1, vBitmap);
 250 //
 251 //#else
 252
 253     wxIcon icon = wxArtProvider::GetIcon(wxART_TIP, wxART_CMN_DIALOG);
 254     wxStaticBitmap *bmp = new wxStaticBitmap(this, -1, icon);
 255
 256 //#endif
 257
 258     // 2) put them in boxes
 259
 260     wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
 261
 262     wxBoxSizer *icon_text = new wxBoxSizer( wxHORIZONTAL );
 263     icon_text->Add( bmp, 0, wxCENTER );
 264     icon_text->Add( text, 1, wxCENTER | wxLEFT, 20 );
 265     topsizer->Add( icon_text, 0, wxEXPAND | wxALL, 10 );
 266
 267     topsizer->Add( m_text, 1, wxEXPAND | wxLEFT|wxRIGHT, 10 );
 268
 269     wxBoxSizer *bottom = new wxBoxSizer( wxHORIZONTAL );
 270     bottom->Add( m_checkbox, 0, wxCENTER );
 271     bottom->Add( 10,10,1 );
 272     bottom->Add( btnNext, 0, wxCENTER | wxLEFT, 10 );
 273     bottom->Add( btnClose, 0, wxCENTER | wxLEFT, 10 );
 274     topsizer->Add( bottom, 0, wxEXPAND | wxALL, 10 );
 275
 276     SetTipText();
 277
 278     SetAutoLayout(TRUE);
 279     SetSizer( topsizer );
 280
 281     topsizer->SetSizeHints( this );
 282     topsizer->Fit( this );
 283
 284     Centre(wxBOTH | wxCENTER_FRAME);
 285
 286 }
 287
 288 // ----------------------------------------------------------------------------
 289 // our public interface
 290 // ----------------------------------------------------------------------------
 291
 292 wxTipProvider *wxCreateFileTipProvider(const wxString& filename,
 293                                        size_t currentTip)
 294 {
 295     return new wxFileTipProvider(filename, currentTip);
 296 }
 297
 298 bool wxShowTip(wxWindow *parent,
 299                wxTipProvider *tipProvider,
 300                bool showAtStartup)
 301 {
 302     wxTipDialog dlg(parent, tipProvider, showAtStartup);
 303     dlg.ShowModal();
 304
 305     return dlg.ShowTipsOnStartup();
 306 }
 307
 308 #endif // wxUSE_STARTUP_TIPS
 309