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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_STARTUP_TIPS
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/button.h"
  31     #include "wx/checkbox.h"
  32     #include "wx/statbox.h"
  33     #include "wx/dialog.h"
  34     #include "wx/icon.h"
  35     #include "wx/intl.h"
  36     #include "wx/textctrl.h"
  37     #include "wx/statbmp.h"
  38     #include "wx/stattext.h"
  39     #include "wx/sizer.h"
  40 #endif // WX_PRECOMP
  41
  42 #include "wx/statline.h"
  43 #include "wx/artprov.h"
  44 #include "wx/settings.h"
  45
  46 #include "wx/tipdlg.h"
  47
  48 // ----------------------------------------------------------------------------
  49 // constants
  50 // ----------------------------------------------------------------------------
  51
  52 static const int wxID_NEXT_TIP = 32000;  // whatever
  53
  54 // ---------------------------------------------------------------------------
  55 // macros
  56 // ---------------------------------------------------------------------------
  57
  58 /* Macro for avoiding #ifdefs when value have to be different depending on size of
  59    device we display on - take it from something like wxDesktopPolicy in the future
  60  */
  61
  62 #if defined(__SMARTPHONE__)
  63     #define wxLARGESMALL(large,small) small
  64 #else
  65     #define wxLARGESMALL(large,small) large
  66 #endif
  67
  68 // ----------------------------------------------------------------------------
  69 // private classes
  70 // ----------------------------------------------------------------------------
  71
  72 // an implementation which takes the tips from the text file - each line
  73 // represents a tip
  74 class WXDLLIMPEXP_ADV wxFileTipProvider : public wxTipProvider
  75 {
  76 public:
  77     wxFileTipProvider(const wxString& filename, size_t currentTip);
  78
  79     virtual wxString GetTip();
  80
  81 private:
  82     wxTextFile m_textfile;
  83
  84     DECLARE_NO_COPY_CLASS(wxFileTipProvider)
  85 };
  86
  87 #ifdef __WIN32__
  88 // TODO an implementation which takes the tips from the given registry key
  89 class WXDLLIMPEXP_ADV wxRegTipProvider : public wxTipProvider
  90 {
  91 public:
  92     wxRegTipProvider(const wxString& keyname);
  93
  94     virtual wxString GetTip();
  95 };
  96
  97 // Empty implementation for now to keep the linker happy
  98 wxString wxRegTipProvider::GetTip()
  99 {
 100     return wxEmptyString;
 101 }
 102
 103 #endif // __WIN32__
 104
 105 // the dialog we show in wxShowTip()
 106 class WXDLLIMPEXP_ADV wxTipDialog : public wxDialog
 107 {
 108 public:
 109     wxTipDialog(wxWindow *parent,
 110                 wxTipProvider *tipProvider,
 111                 bool showAtStartup);
 112
 113     // the tip dialog has "Show tips on startup" checkbox - return true if it
 114     // was checked (or wasn't unchecked)
 115     bool ShowTipsOnStartup() const { return m_checkbox->GetValue(); }
 116
 117     // sets the (next) tip text
 118     void SetTipText() { m_text->SetValue(m_tipProvider->GetTip()); }
 119
 120     // "Next" button handler
 121     void OnNextTip(wxCommandEvent& WXUNUSED(event)) { SetTipText(); }
 122
 123 private:
 124     wxTipProvider *m_tipProvider;
 125
 126     wxTextCtrl *m_text;
 127     wxCheckBox *m_checkbox;
 128
 129     DECLARE_EVENT_TABLE()
 130     DECLARE_NO_COPY_CLASS(wxTipDialog)
 131 };
 132
 133 // ============================================================================
 134 // implementation
 135 // ============================================================================
 136
 137 // ----------------------------------------------------------------------------
 138 // wxFileTipProvider
 139 // ----------------------------------------------------------------------------
 140
 141 wxFileTipProvider::wxFileTipProvider(const wxString& filename,
 142                                      size_t currentTip)
 143                  : wxTipProvider(currentTip), m_textfile(filename)
 144 {
 145     m_textfile.Open();
 146 }
 147
 148 wxString wxFileTipProvider::GetTip()
 149 {
 150     size_t count = m_textfile.GetLineCount();
 151     if ( !count )
 152     {
 153         return _("Tips not available, sorry!");
 154     }
 155
 156     wxString tip;
 157
 158     // Comments start with a # symbol.
 159     // Loop reading lines until get the first one that isn't a comment.
 160     // The max number of loop executions is the number of lines in the
 161     // textfile so that can't go into an eternal loop in the [oddball]
 162     // case of a comment-only tips file, or the developer has vetoed
 163     // them all via PreprecessTip().
 164     for ( size_t i=0; i < count; i++ )
 165     {
 166         // The current tip may be at the last line of the textfile, (or
 167         // past it, if the number of lines in the textfile changed, such
 168         // as changing to a different textfile, with less tips). So check
 169         // to see at last line of text file, (or past it)...
 170         if ( m_currentTip >= count )
 171         {
 172             // .. and if so, wrap back to line 0.
 173             m_currentTip = 0;
 174         }
 175
 176         // Read the tip, and increment the current tip counter.
 177         tip = m_textfile.GetLine(m_currentTip++);
 178
 179         // Allow a derived class's overrided virtual to modify the tip
 180         // now if so desired.
 181         tip = PreprocessTip(tip);
 182
 183         // Break if tip isn't a comment, and isn't an empty string
 184         // (or only stray space characters).
 185         if ( !tip.StartsWith(wxT("#")) && (tip.Trim() != wxEmptyString) )
 186         {
 187             break;
 188         }
 189     }
 190
 191     // If tip starts with '_(', then it is a gettext string of format
 192     // _("My \"global\" tip text") so first strip off the leading '_("'...
 193     if ( tip.StartsWith(wxT("_(\"" ), &tip))
 194     {
 195         //...and strip off the trailing '")'...
 196         tip = tip.BeforeLast(wxT('\"'));
 197         // ...and replace escaped quotes
 198         tip.Replace(wxT("\\\""), wxT("\""));
 199     }
 200
 201     return tip;
 202 }
 203
 204 // ----------------------------------------------------------------------------
 205 // wxTipDialog
 206 // ----------------------------------------------------------------------------
 207
 208 BEGIN_EVENT_TABLE(wxTipDialog, wxDialog)
 209     EVT_BUTTON(wxID_NEXT_TIP, wxTipDialog::OnNextTip)
 210     EVT_BUTTON(wxID_CLOSE, wxTipDialog::OnCancel)
 211 END_EVENT_TABLE()
 212
 213 wxTipDialog::wxTipDialog(wxWindow *parent,
 214                          wxTipProvider *tipProvider,
 215                          bool showAtStartup)
 216            : wxDialog(parent, wxID_ANY, _("Tip of the Day"),
 217                       wxDefaultPosition, wxDefaultSize,
 218                       wxDEFAULT_DIALOG_STYLE
 219 #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__)
 220                       | wxRESIZE_BORDER
 221 #endif
 222                       )
 223 {
 224     m_tipProvider = tipProvider;
 225     bool isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
 226
 227     // 1) create all controls in tab order
 228
 229     // smart phones does not support or do not waste space for wxButtons
 230 #ifndef __SMARTPHONE__
 231     wxButton *btnClose = new wxButton(this, wxID_CLOSE);
 232 #endif
 233
 234     m_checkbox = new wxCheckBox(this, wxID_ANY, _("&Show tips at startup"));
 235     m_checkbox->SetValue(showAtStartup);
 236
 237     // smart phones does not support or do not waste space for wxButtons
 238 #ifndef __SMARTPHONE__
 239     wxButton *btnNext = new wxButton(this, wxID_NEXT_TIP, _("&Next Tip"));
 240 #endif
 241
 242     wxStaticText *text = new wxStaticText(this, wxID_ANY, _("Did you know..."));
 243
 244     if (!isPda)
 245     {
 246         wxFont font = text->GetFont();
 247         font.SetPointSize(int(1.6 * font.GetPointSize()));
 248         font.SetWeight(wxFONTWEIGHT_BOLD);
 249         text->SetFont(font);
 250     }
 251
 252     m_text = new wxTextCtrl(this, wxID_ANY, wxEmptyString,
 253                             wxDefaultPosition, wxSize(200, 160),
 254                             wxTE_MULTILINE |
 255                             wxTE_READONLY |
 256                             wxTE_NO_VSCROLL |
 257                             wxTE_RICH2 | // a hack to get rid of vert scrollbar
 258                             wxDEFAULT_CONTROL_BORDER
 259                             );
 260 #if defined(__WXMSW__)
 261     m_text->SetFont(wxFont(12, wxSWISS, wxNORMAL, wxNORMAL));
 262 #endif
 263
 264 //#if defined(__WXPM__)
 265     //
 266     // The only way to get icons into an OS/2 static bitmap control
 267     //
 268 //    wxBitmap                        vBitmap;
 269
 270 //    vBitmap.SetId(wxICON_TIP); // OS/2 specific bitmap method--OS/2 wxBitmaps all have an ID.
 271 //                               // and for StatBmp's under OS/2 it MUST be a valid resource ID.
 272 //
 273 //    wxStaticBitmap*                 bmp = new wxStaticBitmap(this, wxID_ANY, vBitmap);
 274 //
 275 //#else
 276
 277     wxIcon icon = wxArtProvider::GetIcon(wxART_TIP, wxART_CMN_DIALOG);
 278     wxStaticBitmap *bmp = new wxStaticBitmap(this, wxID_ANY, icon);
 279
 280 //#endif
 281
 282     // 2) put them in boxes
 283
 284     wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
 285
 286     wxBoxSizer *icon_text = new wxBoxSizer( wxHORIZONTAL );
 287     icon_text->Add( bmp, 0, wxCENTER );
 288     icon_text->Add( text, 1, wxCENTER | wxLEFT, wxLARGESMALL(20,0) );
 289     topsizer->Add( icon_text, 0, wxEXPAND | wxALL, wxLARGESMALL(10,0) );
 290
 291     topsizer->Add( m_text, 1, wxEXPAND | wxLEFT|wxRIGHT, wxLARGESMALL(10,0) );
 292
 293     wxBoxSizer *bottom = new wxBoxSizer( wxHORIZONTAL );
 294     if (isPda)
 295         topsizer->Add( m_checkbox, 0, wxCENTER|wxTOP );
 296     else
 297         bottom->Add( m_checkbox, 0, wxCENTER );
 298
 299     // smart phones does not support or do not waste space for wxButtons
 300 #ifdef __SMARTPHONE__
 301     SetRightMenu(wxID_NEXT_TIP, _("Next"));
 302     SetLeftMenu(wxID_CLOSE);
 303 #else
 304     if (!isPda)
 305         bottom->Add( 10,10,1 );
 306     bottom->Add( btnNext, 0, wxCENTER | wxLEFT, wxLARGESMALL(10,0) );
 307     bottom->Add( btnClose, 0, wxCENTER | wxLEFT, wxLARGESMALL(10,0) );
 308 #endif
 309
 310     if (isPda)
 311         topsizer->Add( bottom, 0, wxCENTER | wxALL, 5 );
 312     else
 313         topsizer->Add( bottom, 0, wxEXPAND | wxALL, wxLARGESMALL(10,0) );
 314
 315     SetTipText();
 316
 317     SetSizer( topsizer );
 318
 319 #if !defined(__SMARTPHONE__) && !defined(__POCKETPC__)
 320     topsizer->SetSizeHints( this );
 321     topsizer->Fit( this );
 322
 323     Centre(wxBOTH | wxCENTER_FRAME);
 324 #endif
 325 }
 326
 327 // ----------------------------------------------------------------------------
 328 // our public interface
 329 // ----------------------------------------------------------------------------
 330
 331 wxTipProvider *wxCreateFileTipProvider(const wxString& filename,
 332                                        size_t currentTip)
 333 {
 334     return new wxFileTipProvider(filename, currentTip);
 335 }
 336
 337 bool wxShowTip(wxWindow *parent,
 338                wxTipProvider *tipProvider,
 339                bool showAtStartup)
 340 {
 341     wxTipDialog dlg(parent, tipProvider, showAtStartup);
 342     dlg.ShowModal();
 343
 344     return dlg.ShowTipsOnStartup();
 345 }
 346
 347 #endif // wxUSE_STARTUP_TIPS
 348