samples/splitter/splitter.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        splitter.cpp
   3 // Purpose:     wxSplitterWindow sample
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx/wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/log.h"
  29
  30     #include "wx/app.h"
  31     #include "wx/frame.h"
  32
  33     #include "wx/scrolwin.h"
  34     #include "wx/menu.h"
  35
  36     #include "wx/textdlg.h"       // for wxGetTextFromUser
  37 #endif
  38
  39 #include "wx/splitter.h"
  40 #include "wx/dcmirror.h"
  41
  42 // ----------------------------------------------------------------------------
  43 // constants
  44 // ----------------------------------------------------------------------------
  45
  46 // ID for the menu commands
  47 enum
  48 {
  49     SPLIT_QUIT = 1,
  50     SPLIT_HORIZONTAL,
  51     SPLIT_VERTICAL,
  52     SPLIT_UNSPLIT,
  53     SPLIT_LIVE,
  54     SPLIT_SETPOSITION,
  55     SPLIT_SETMINSIZE,
  56     SPLIT_SETGRAVITY
  57 };
  58
  59 // ----------------------------------------------------------------------------
  60 // our classes
  61 // ----------------------------------------------------------------------------
  62
  63 class MyApp: public wxApp
  64 {
  65 public:
  66     MyApp() { }
  67
  68     virtual bool OnInit();
  69
  70     DECLARE_NO_COPY_CLASS(MyApp)
  71 };
  72
  73 class MyFrame: public wxFrame
  74 {
  75 public:
  76     MyFrame();
  77     virtual ~MyFrame(){};
  78
  79     // Menu commands
  80     void SplitHorizontal(wxCommandEvent& event);
  81     void SplitVertical(wxCommandEvent& event);
  82     void Unsplit(wxCommandEvent& event);
  83     void ToggleLive(wxCommandEvent& event);
  84     void SetPosition(wxCommandEvent& event);
  85     void SetMinSize(wxCommandEvent& event);
  86     void SetGravity(wxCommandEvent& event);
  87
  88     void Quit(wxCommandEvent& event);
  89
  90     // Menu command update functions
  91     void UpdateUIHorizontal(wxUpdateUIEvent& event);
  92     void UpdateUIVertical(wxUpdateUIEvent& event);
  93     void UpdateUIUnsplit(wxUpdateUIEvent& event);
  94
  95 private:
  96     wxScrolledWindow *m_left, *m_right;
  97
  98     wxSplitterWindow* m_splitter;
  99
 100     DECLARE_EVENT_TABLE()
 101     DECLARE_NO_COPY_CLASS(MyFrame)
 102 };
 103
 104 class MySplitterWindow : public wxSplitterWindow
 105 {
 106 public:
 107     MySplitterWindow(wxFrame *parent);
 108
 109     // event handlers
 110     void OnPositionChanged(wxSplitterEvent& event);
 111     void OnPositionChanging(wxSplitterEvent& event);
 112     void OnDClick(wxSplitterEvent& event);
 113     void OnUnsplitEvent(wxSplitterEvent& event);
 114
 115 private:
 116     wxFrame *m_frame;
 117
 118     DECLARE_EVENT_TABLE()
 119     DECLARE_NO_COPY_CLASS(MySplitterWindow)
 120 };
 121
 122 class MyCanvas: public wxScrolledWindow
 123 {
 124 public:
 125     MyCanvas(wxWindow* parent, bool mirror);
 126     virtual ~MyCanvas(){};
 127
 128     virtual void OnDraw(wxDC& dc);
 129
 130 private:
 131     bool m_mirror;
 132
 133     DECLARE_NO_COPY_CLASS(MyCanvas)
 134 };
 135
 136 // ============================================================================
 137 // implementation
 138 // ============================================================================
 139
 140 // ----------------------------------------------------------------------------
 141 // MyApp
 142 // ----------------------------------------------------------------------------
 143
 144 IMPLEMENT_APP(MyApp)
 145
 146 bool MyApp::OnInit()
 147 {
 148     // create and show the main frame
 149     MyFrame* frame = new MyFrame;
 150
 151     frame->Show(true);
 152
 153     return true;
 154 }
 155
 156 // ----------------------------------------------------------------------------
 157 // MyFrame
 158 // ----------------------------------------------------------------------------
 159
 160 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 161     EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
 162     EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
 163     EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
 164     EVT_MENU(SPLIT_LIVE, MyFrame::ToggleLive)
 165     EVT_MENU(SPLIT_SETPOSITION, MyFrame::SetPosition)
 166     EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
 167     EVT_MENU(SPLIT_SETGRAVITY, MyFrame::SetGravity)
 168
 169     EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
 170
 171     EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
 172     EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
 173     EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
 174 END_EVENT_TABLE()
 175
 176 // My frame constructor
 177 MyFrame::MyFrame()
 178        : wxFrame(NULL, wxID_ANY, _T("wxSplitterWindow sample"),
 179                  wxDefaultPosition, wxSize(420, 300),
 180                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 181 {
 182 #if wxUSE_STATUSBAR
 183     CreateStatusBar(2);
 184 #endif // wxUSE_STATUSBAR
 185
 186     // Make a menubar
 187     wxMenu *splitMenu = new wxMenu;
 188     splitMenu->Append(SPLIT_VERTICAL,
 189                       _T("Split &Vertically\tCtrl-V"),
 190                       _T("Split vertically"));
 191     splitMenu->Append(SPLIT_HORIZONTAL,
 192                       _T("Split &Horizontally\tCtrl-H"),
 193                       _T("Split horizontally"));
 194     splitMenu->Append(SPLIT_UNSPLIT,
 195                       _T("&Unsplit\tCtrl-U"),
 196                       _T("Unsplit"));
 197     splitMenu->AppendSeparator();
 198
 199     splitMenu->AppendCheckItem(SPLIT_LIVE,
 200                                _T("&Live update\tCtrl-L"),
 201                                _T("Toggle live update mode"));
 202     splitMenu->Append(SPLIT_SETPOSITION,
 203                       _T("Set splitter &position\tCtrl-P"),
 204                       _T("Set the splitter position"));
 205     splitMenu->Append(SPLIT_SETMINSIZE,
 206                       _T("Set &min size\tCtrl-M"),
 207                       _T("Set minimum pane size"));
 208     splitMenu->Append(SPLIT_SETGRAVITY,
 209                       _T("Set &gravity\tCtrl-G"),
 210                       _T("Set gravity of sash"));
 211     splitMenu->AppendSeparator();
 212
 213     splitMenu->Append(SPLIT_QUIT, _T("E&xit\tAlt-X"), _T("Exit"));
 214
 215     wxMenuBar *menuBar = new wxMenuBar;
 216     menuBar->Append(splitMenu, _T("&Splitter"));
 217
 218     SetMenuBar(menuBar);
 219
 220     menuBar->Check(SPLIT_LIVE, true);
 221     m_splitter = new MySplitterWindow(this);
 222
 223     m_splitter->SetSashGravity(1.0);
 224
 225 #if 1
 226     m_left = new MyCanvas(m_splitter, true);
 227     m_left->SetBackgroundColour(*wxRED);
 228     m_left->SetScrollbars(20, 20, 5, 5);
 229     m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 230
 231     m_right = new MyCanvas(m_splitter, false);
 232     m_right->SetBackgroundColour(*wxCYAN);
 233     m_right->SetScrollbars(20, 20, 5, 5);
 234 #else // for testing kbd navigation inside the splitter
 235     m_left = new wxTextCtrl(m_splitter, wxID_ANY, _T("first text"));
 236     m_right = new wxTextCtrl(m_splitter, wxID_ANY, _T("second text"));
 237 #endif
 238
 239     // you can also do this to start with a single window
 240 #if 0
 241     m_right->Show(false);
 242     m_splitter->Initialize(m_left);
 243 #else
 244     // you can also try -100
 245     m_splitter->SplitVertically(m_left, m_right, 100);
 246 #endif
 247
 248 #if wxUSE_STATUSBAR
 249     SetStatusText(_T("Min pane size = 0"), 1);
 250 #endif // wxUSE_STATUSBAR
 251 }
 252
 253 // menu command handlers
 254
 255 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 256 {
 257     Close(true);
 258 }
 259
 260 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 261 {
 262     if ( m_splitter->IsSplit() )
 263         m_splitter->Unsplit();
 264     m_left->Show(true);
 265     m_right->Show(true);
 266     m_splitter->SplitHorizontally( m_left, m_right );
 267
 268 #if wxUSE_STATUSBAR
 269     SetStatusText(_T("Splitter split horizontally"), 1);
 270 #endif // wxUSE_STATUSBAR
 271 }
 272
 273 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 274 {
 275     if ( m_splitter->IsSplit() )
 276         m_splitter->Unsplit();
 277     m_left->Show(true);
 278     m_right->Show(true);
 279     m_splitter->SplitVertically( m_left, m_right );
 280
 281 #if wxUSE_STATUSBAR
 282     SetStatusText(_T("Splitter split vertically"), 1);
 283 #endif // wxUSE_STATUSBAR
 284 }
 285
 286 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 287 {
 288     if ( m_splitter->IsSplit() )
 289         m_splitter->Unsplit();
 290 #if wxUSE_STATUSBAR
 291     SetStatusText(_T("No splitter"));
 292 #endif // wxUSE_STATUSBAR
 293 }
 294
 295 void MyFrame::ToggleLive(wxCommandEvent& event )
 296 {
 297     long style = m_splitter->GetWindowStyleFlag();
 298     if ( event.IsChecked() )
 299         style |= wxSP_LIVE_UPDATE;
 300     else
 301         style &= ~wxSP_LIVE_UPDATE;
 302
 303     m_splitter->SetWindowStyleFlag(style);
 304 }
 305
 306 void MyFrame::SetPosition(wxCommandEvent& WXUNUSED(event) )
 307 {
 308     wxString str;
 309     str.Printf( wxT("%d"), m_splitter->GetSashPosition());
 310     str = wxGetTextFromUser(_T("Enter splitter position:"), _T(""), str, this);
 311     if ( str.empty() )
 312         return;
 313
 314     long pos;
 315     if ( !str.ToLong(&pos) )
 316     {
 317         wxLogError(_T("The splitter position should be an integer."));
 318         return;
 319     }
 320
 321     m_splitter->SetSashPosition(pos);
 322
 323     wxLogStatus(this, _T("Splitter position set to %ld"), pos);
 324 }
 325
 326 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 327 {
 328     wxString str;
 329     str.Printf( wxT("%d"), m_splitter->GetMinimumPaneSize());
 330     str = wxGetTextFromUser(_T("Enter minimal size for panes:"), _T(""), str, this);
 331     if ( str.empty() )
 332         return;
 333
 334     int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 335     m_splitter->SetMinimumPaneSize(minsize);
 336 #if wxUSE_STATUSBAR
 337     str.Printf( wxT("Min pane size = %d"), minsize);
 338     SetStatusText(str, 1);
 339 #endif // wxUSE_STATUSBAR
 340 }
 341 void MyFrame::SetGravity(wxCommandEvent& WXUNUSED(event) )
 342 {
 343     wxString str;
 344     str.Printf( wxT("%g"), m_splitter->GetSashGravity());
 345     str = wxGetTextFromUser(_T("Enter sash gravity (0,1):"), _T(""), str, this);
 346     if ( str.empty() )
 347         return;
 348
 349     double gravity = wxStrtod( str, (wxChar**)NULL);
 350     m_splitter->SetSashGravity(gravity);
 351 #if wxUSE_STATUSBAR
 352     str.Printf( wxT("Gravity = %g"), gravity);
 353     SetStatusText(str, 1);
 354 #endif // wxUSE_STATUSBAR
 355 }
 356
 357 // Update UI handlers
 358
 359 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 360 {
 361     event.Enable( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );
 362 }
 363
 364 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 365 {
 366     event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 367 }
 368
 369 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 370 {
 371     event.Enable( m_splitter->IsSplit() );
 372 }
 373
 374 // ----------------------------------------------------------------------------
 375 // MySplitterWindow
 376 // ----------------------------------------------------------------------------
 377
 378 BEGIN_EVENT_TABLE(MySplitterWindow, wxSplitterWindow)
 379     EVT_SPLITTER_SASH_POS_CHANGED(wxID_ANY, MySplitterWindow::OnPositionChanged)
 380     EVT_SPLITTER_SASH_POS_CHANGING(wxID_ANY, MySplitterWindow::OnPositionChanging)
 381
 382     EVT_SPLITTER_DCLICK(wxID_ANY, MySplitterWindow::OnDClick)
 383
 384     EVT_SPLITTER_UNSPLIT(wxID_ANY, MySplitterWindow::OnUnsplitEvent)
 385 END_EVENT_TABLE()
 386
 387 MySplitterWindow::MySplitterWindow(wxFrame *parent)
 388                 : wxSplitterWindow(parent, wxID_ANY,
 389                                    wxDefaultPosition, wxDefaultSize,
 390                                    wxSP_3D | wxSP_LIVE_UPDATE |
 391                                    wxCLIP_CHILDREN /* | wxSP_NO_XP_THEME */ )
 392 {
 393     m_frame = parent;
 394 }
 395
 396 void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
 397 {
 398     wxLogStatus(m_frame, _T("Position has changed, now = %d (or %d)"),
 399                 event.GetSashPosition(), GetSashPosition());
 400
 401     event.Skip();
 402 }
 403
 404 void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
 405 {
 406     wxLogStatus(m_frame, _T("Position is changing, now = %d (or %d)"),
 407                 event.GetSashPosition(), GetSashPosition());
 408
 409     event.Skip();
 410 }
 411
 412 void MySplitterWindow::OnDClick(wxSplitterEvent& event)
 413 {
 414 #if wxUSE_STATUSBAR
 415     m_frame->SetStatusText(_T("Splitter double clicked"), 1);
 416 #endif // wxUSE_STATUSBAR
 417
 418     event.Skip();
 419 }
 420
 421 void MySplitterWindow::OnUnsplitEvent(wxSplitterEvent& event)
 422 {
 423 #if wxUSE_STATUSBAR
 424     m_frame->SetStatusText(_T("Splitter unsplit"), 1);
 425 #endif // wxUSE_STATUSBAR
 426
 427     event.Skip();
 428 }
 429
 430 // ----------------------------------------------------------------------------
 431 // MyCanvas
 432 // ----------------------------------------------------------------------------
 433
 434 MyCanvas::MyCanvas(wxWindow* parent, bool mirror)
 435         : wxScrolledWindow(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,
 436                            wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
 437 {
 438     m_mirror = mirror;
 439 }
 440
 441 void MyCanvas::OnDraw(wxDC& dcOrig)
 442 {
 443     wxMirrorDC dc(dcOrig, m_mirror);
 444
 445     dc.SetPen(*wxBLACK_PEN);
 446     dc.DrawLine(0, 0, 100, 200);
 447
 448     dc.SetBackgroundMode(wxTRANSPARENT);
 449     dc.DrawText(_T("Testing"), 50, 50);
 450
 451     dc.SetPen(*wxRED_PEN);
 452     dc.SetBrush(*wxGREEN_BRUSH);
 453     dc.DrawRectangle(120, 120, 100, 80);
 454 }
 455