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/layout.h"
  41     #include "wx/settings.h"
  42     #include "wx/textctrl.h"
  43     #include "wx/statbmp.h"
  44 #endif // WX_PRECOMP
  45
  46 #include "wx/statline.h"
  47
  48 #include "wx/tipdlg.h"
  49
  50 // ----------------------------------------------------------------------------
  51 // constants
  52 // ----------------------------------------------------------------------------
  53
  54 static const int wxID_NEXT_TIP = -100;  // whatever
  55
  56 // ----------------------------------------------------------------------------
  57 // private classes
  58 // ----------------------------------------------------------------------------
  59
  60 // an implementation which takes the tips from the text file - each line
  61 // represents a tip
  62 class WXDLLEXPORT wxFileTipProvider : public wxTipProvider
  63 {
  64 public:
  65     wxFileTipProvider(const wxString& filename, size_t currentTip);
  66
  67     virtual wxString GetTip();
  68
  69 private:
  70     wxTextFile m_textfile;
  71 };
  72
  73 #ifdef __WIN32__
  74 // TODO an implementation which takes the tips from the given registry key
  75 class WXDLLEXPORT wxRegTipProvider : public wxTipProvider
  76 {
  77 public:
  78     wxRegTipProvider(const wxString& keyname);
  79
  80     virtual wxString GetTip();
  81 };
  82
  83 // Empty implementation for now to keep the linker happy
  84 wxString wxRegTipProvider::GetTip()
  85 {
  86     return "";
  87 }
  88
  89 #endif // __WIN32__
  90
  91 // the dialog we show in wxShowTip()
  92 class WXDLLEXPORT wxTipDialog : public wxDialog
  93 {
  94 public:
  95     wxTipDialog(wxWindow *parent,
  96                 wxTipProvider *tipProvider,
  97                 bool showAtStartup);
  98
  99     // the tip dialog has "Show tips on startup" checkbox - return TRUE if it
 100     // was checked (or wasn't unchecked)
 101     bool ShowTipsOnStartup() const { return m_checkbox->GetValue(); }
 102
 103     // sets the (next) tip text
 104     void SetTipText() { m_text->SetValue(m_tipProvider->GetTip()); }
 105
 106     // "Next" button handler
 107     void OnNextTip(wxCommandEvent& WXUNUSED(event)) { SetTipText(); }
 108
 109 private:
 110     wxTipProvider *m_tipProvider;
 111
 112     wxTextCtrl *m_text;
 113     wxCheckBox *m_checkbox;
 114
 115     DECLARE_EVENT_TABLE()
 116 };
 117
 118 // ============================================================================
 119 // implementation
 120 // ============================================================================
 121
 122 // ----------------------------------------------------------------------------
 123 // wxFileTipProvider
 124 // ----------------------------------------------------------------------------
 125
 126 wxFileTipProvider::wxFileTipProvider(const wxString& filename,
 127                                      size_t currentTip)
 128                  : wxTipProvider(currentTip), m_textfile(filename)
 129 {
 130     m_textfile.Open();
 131 }
 132
 133 wxString wxFileTipProvider::GetTip()
 134 {
 135     size_t count = m_textfile.GetLineCount();
 136     if ( !count )
 137         return _("Tips not available, sorry!");
 138
 139     // notice that it may be greater, actually, if we remembered it from the
 140     // last time and the number of tips changed
 141     if ( m_currentTip == count )
 142     {
 143         // wrap
 144         m_currentTip = 0;
 145     }
 146
 147     return m_textfile.GetLine(m_currentTip++);
 148 }
 149
 150 // ----------------------------------------------------------------------------
 151 // wxTipDialog
 152 // ----------------------------------------------------------------------------
 153
 154 BEGIN_EVENT_TABLE(wxTipDialog, wxDialog)
 155     EVT_BUTTON(wxID_NEXT_TIP, OnNextTip)
 156 END_EVENT_TABLE()
 157
 158 wxTipDialog::wxTipDialog(wxWindow *parent,
 159                          wxTipProvider *tipProvider,
 160                          bool showAtStartup)
 161            : wxDialog(parent, -1, _("Tip of the Day"),
 162                       wxDefaultPosition, wxDefaultSize,
 163                       wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
 164 {
 165     m_tipProvider = tipProvider;
 166
 167     wxSize sizeBtn = GetStandardButtonSize();
 168     wxLayoutConstraints *c;
 169
 170     // create the controls in the right order, then set the constraints
 171     wxButton *btnClose = new wxButton(this, wxID_CANCEL, _("&Close"));
 172     m_checkbox = new wxCheckBox(this, -1, _("&Show tips at startup"));
 173     wxButton *btnNext = new wxButton(this, wxID_NEXT_TIP, _("&Next"));
 174
 175     wxTextCtrl *text = new wxTextCtrl(this, -1, _("Did you know..."),
 176                                       wxDefaultPosition, wxDefaultSize,
 177                                       wxTE_READONLY | wxNO_BORDER);
 178     text->SetFont(wxFont(18, wxSWISS, wxNORMAL, wxBOLD));
 179     text->SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_BTNFACE));
 180
 181     m_text = new wxTextCtrl(this, -1, _T(""),
 182                             wxDefaultPosition, wxDefaultSize,
 183                             wxTE_MULTILINE | wxTE_READONLY | wxSUNKEN_BORDER);
 184     m_text->SetFont(wxFont(14, wxROMAN, wxNORMAL, wxNORMAL));
 185
 186 #ifdef __WXMSW__
 187     wxIcon icon("wxICON_TIP");
 188 #else
 189     #include "wx/generic/tip.xpm"
 190     wxIcon icon(tipIcon);
 191 #endif
 192
 193     wxStaticBitmap *bmp = new wxStaticBitmap(this, -1, icon);
 194
 195     const int iconSize = icon.GetWidth();
 196
 197     c = new wxLayoutConstraints;
 198     c->top.SameAs(this, wxTop, 2*LAYOUT_Y_MARGIN);
 199     c->left.RightOf(bmp, 2*LAYOUT_X_MARGIN);
 200     c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
 201     c->height.Absolute(2*text->GetSize().GetHeight());
 202     text->SetConstraints(c);
 203
 204     c = new wxLayoutConstraints;
 205     c->centreY.SameAs(text, wxCentreY);
 206     c->left.SameAs(this, wxLeft, 2*LAYOUT_X_MARGIN);
 207     c->width.Absolute(iconSize);
 208     c->height.Absolute(iconSize);
 209     bmp->SetConstraints(c);
 210
 211     c = new wxLayoutConstraints;
 212     c->bottom.SameAs(this, wxBottom, 2*LAYOUT_X_MARGIN);
 213     c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
 214     c->width.Absolute(sizeBtn.GetWidth());
 215     c->height.Absolute(sizeBtn.GetHeight());
 216     btnClose->SetConstraints(c);
 217
 218     c = new wxLayoutConstraints;
 219     c->bottom.SameAs(this, wxBottom, 2*LAYOUT_X_MARGIN);
 220     c->right.LeftOf(btnClose, 2*LAYOUT_X_MARGIN);
 221     c->width.Absolute(sizeBtn.GetWidth());
 222     c->height.Absolute(sizeBtn.GetHeight());
 223     btnNext->SetConstraints(c);
 224
 225     c = new wxLayoutConstraints;
 226     c->bottom.SameAs(this, wxBottom, 2*LAYOUT_X_MARGIN);
 227     c->left.SameAs(this, wxLeft, 2*LAYOUT_X_MARGIN);
 228     c->width.AsIs();
 229     c->height.AsIs();
 230     m_checkbox->SetConstraints(c);
 231     m_checkbox->SetValue(showAtStartup);
 232
 233     c = new wxLayoutConstraints;
 234     c->top.Below(text);
 235     c->left.SameAs(this, wxLeft, 2*LAYOUT_X_MARGIN);
 236     c->right.SameAs(this, wxRight, 2*LAYOUT_X_MARGIN);
 237     c->bottom.Above(btnClose, -2*LAYOUT_Y_MARGIN);
 238     m_text->SetConstraints(c);
 239
 240     SetTipText();
 241
 242     Centre(wxBOTH | wxCENTER_FRAME);
 243
 244     wxSize size(5*sizeBtn.GetWidth(), 10*sizeBtn.GetHeight());
 245     SetSize(size);
 246     SetSizeHints(size.x, size.y);
 247
 248     SetAutoLayout(TRUE);
 249 }
 250
 251 // ----------------------------------------------------------------------------
 252 // our public interface
 253 // ----------------------------------------------------------------------------
 254
 255 wxTipProvider *wxCreateFileTipProvider(const wxString& filename,
 256                                        size_t currentTip)
 257 {
 258     return new wxFileTipProvider(filename, currentTip);
 259 }
 260
 261 bool wxShowTip(wxWindow *parent,
 262                wxTipProvider *tipProvider,
 263                bool showAtStartup)
 264 {
 265     wxTipDialog dlg(parent, tipProvider, showAtStartup);
 266     dlg.ShowModal();
 267
 268     return dlg.ShowTipsOnStartup();
 269 }
 270
 271 #endif // wxUSE_STARTUP_TIPS
 272