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,
  50     SPLIT_HORIZONTAL,
  51     SPLIT_VERTICAL,
  52     SPLIT_UNSPLIT,
  53     SPLIT_LIVE,
  54     SPLIT_SETPOSITION,
  55     SPLIT_SETMINSIZE
  56 };
  57
  58 // ----------------------------------------------------------------------------
  59 // our classes
  60 // ----------------------------------------------------------------------------
  61
  62 class MyApp: public wxApp
  63 {
  64 public:
  65     MyApp() { }
  66
  67     virtual bool OnInit();
  68
  69     DECLARE_NO_COPY_CLASS(MyApp)
  70 };
  71
  72 class MyFrame: public wxFrame
  73 {
  74 public:
  75     MyFrame();
  76     virtual ~MyFrame();
  77
  78     // Menu commands
  79     void SplitHorizontal(wxCommandEvent& event);
  80     void SplitVertical(wxCommandEvent& event);
  81     void Unsplit(wxCommandEvent& event);
  82     void ToggleLive(wxCommandEvent& event);
  83     void SetPosition(wxCommandEvent& event);
  84     void SetMinSize(wxCommandEvent& event);
  85
  86     void Quit(wxCommandEvent& event);
  87
  88     // Menu command update functions
  89     void UpdateUIHorizontal(wxUpdateUIEvent& event);
  90     void UpdateUIVertical(wxUpdateUIEvent& event);
  91     void UpdateUIUnsplit(wxUpdateUIEvent& event);
  92
  93 private:
  94     wxScrolledWindow *m_left, *m_right;
  95
  96     wxSplitterWindow* m_splitter;
  97
  98     DECLARE_EVENT_TABLE()
  99     DECLARE_NO_COPY_CLASS(MyFrame)
 100 };
 101
 102 class MySplitterWindow : public wxSplitterWindow
 103 {
 104 public:
 105     MySplitterWindow(wxFrame *parent);
 106
 107     // event handlers
 108     void OnPositionChanged(wxSplitterEvent& event);
 109     void OnPositionChanging(wxSplitterEvent& event);
 110     void OnDClick(wxSplitterEvent& event);
 111     void OnUnsplit(wxSplitterEvent& event);
 112
 113 private:
 114     wxFrame *m_frame;
 115
 116     DECLARE_EVENT_TABLE()
 117     DECLARE_NO_COPY_CLASS(MySplitterWindow)
 118 };
 119
 120 class MyCanvas: public wxScrolledWindow
 121 {
 122 public:
 123     MyCanvas(wxWindow* parent, bool mirror);
 124     virtual ~MyCanvas();
 125
 126     virtual void OnDraw(wxDC& dc);
 127
 128 private:
 129     bool m_mirror;
 130
 131     DECLARE_NO_COPY_CLASS(MyCanvas)
 132 };
 133
 134 // ============================================================================
 135 // implementation
 136 // ============================================================================
 137
 138 // ----------------------------------------------------------------------------
 139 // MyApp
 140 // ----------------------------------------------------------------------------
 141
 142 IMPLEMENT_APP(MyApp)
 143
 144 bool MyApp::OnInit()
 145 {
 146     // create and show the main frame
 147     MyFrame* frame = new MyFrame;
 148
 149     frame->Show(TRUE);
 150
 151     return TRUE;
 152 }
 153
 154 // ----------------------------------------------------------------------------
 155 // MyFrame
 156 // ----------------------------------------------------------------------------
 157
 158 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 159     EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
 160     EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
 161     EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
 162     EVT_MENU(SPLIT_LIVE, MyFrame::ToggleLive)
 163     EVT_MENU(SPLIT_SETPOSITION, MyFrame::SetPosition)
 164     EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
 165
 166     EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
 167
 168     EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
 169     EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
 170     EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
 171 END_EVENT_TABLE()
 172
 173 // My frame constructor
 174 MyFrame::MyFrame()
 175        : wxFrame(NULL, -1, _T("wxSplitterWindow sample"),
 176                  wxDefaultPosition, wxSize(420, 300),
 177                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 178 {
 179     CreateStatusBar(2);
 180
 181     // Make a menubar
 182     wxMenu *splitMenu = new wxMenu;
 183     splitMenu->Append(SPLIT_VERTICAL,
 184                       _T("Split &Vertically\tCtrl-V"),
 185                       _T("Split vertically"));
 186     splitMenu->Append(SPLIT_HORIZONTAL,
 187                       _T("Split &Horizontally\tCtrl-H"),
 188                       _T("Split horizontally"));
 189     splitMenu->Append(SPLIT_UNSPLIT,
 190                       _T("&Unsplit\tCtrl-U"),
 191                       _T("Unsplit"));
 192     splitMenu->AppendSeparator();
 193
 194     splitMenu->AppendCheckItem(SPLIT_LIVE,
 195                                _T("&Live update\tCtrl-L"),
 196                                _T("Toggle live update mode"));
 197     splitMenu->Append(SPLIT_SETPOSITION,
 198                       _T("Set splitter &position\tCtrl-P"),
 199                       _T("Set the splitter position"));
 200     splitMenu->Append(SPLIT_SETMINSIZE,
 201                       _T("Set &min size\tCtrl-M"),
 202                       _T("Set minimum pane size"));
 203     splitMenu->AppendSeparator();
 204
 205     splitMenu->Append(SPLIT_QUIT, _T("E&xit\tAlt-X"), _T("Exit"));
 206
 207     wxMenuBar *menuBar = new wxMenuBar;
 208     menuBar->Append(splitMenu, _T("&Splitter"));
 209
 210     SetMenuBar(menuBar);
 211
 212     menuBar->Check(SPLIT_LIVE, TRUE);
 213     m_splitter = new MySplitterWindow(this);
 214
 215 #if 1
 216     m_left = new MyCanvas(m_splitter, true);
 217     m_left->SetBackgroundColour(*wxRED);
 218     m_left->SetScrollbars(20, 20, 5, 5);
 219     m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 220
 221     m_right = new MyCanvas(m_splitter, false);
 222     m_right->SetBackgroundColour(*wxCYAN);
 223     m_right->SetScrollbars(20, 20, 5, 5);
 224 #else // for testing kbd navigation inside the splitter
 225     m_left = new wxTextCtrl(m_splitter, -1, _T("first text"));
 226     m_right = new wxTextCtrl(m_splitter, -1, _T("second text"));
 227 #endif
 228
 229     // you can also do this to start with a single window
 230 #if 0
 231     m_right->Show(FALSE);
 232     m_splitter->Initialize(m_left);
 233 #else
 234     // you can also try -100
 235     m_splitter->SplitVertically(m_left, m_right, 100);
 236 #endif
 237
 238     SetStatusText(_T("Min pane size = 0"), 1);
 239 }
 240
 241 MyFrame::~MyFrame()
 242 {
 243 }
 244
 245 // menu command handlers
 246
 247 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 248 {
 249     Close(TRUE);
 250 }
 251
 252 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 253 {
 254     if ( m_splitter->IsSplit() )
 255         m_splitter->Unsplit();
 256     m_left->Show(TRUE);
 257     m_right->Show(TRUE);
 258     m_splitter->SplitHorizontally( m_left, m_right );
 259
 260     SetStatusText(_T("Splitter split horizontally"), 1);
 261 }
 262
 263 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 264 {
 265     if ( m_splitter->IsSplit() )
 266         m_splitter->Unsplit();
 267     m_left->Show(TRUE);
 268     m_right->Show(TRUE);
 269     m_splitter->SplitVertically( m_left, m_right );
 270
 271     SetStatusText(_T("Splitter split vertically"), 1);
 272 }
 273
 274 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 275 {
 276     if ( m_splitter->IsSplit() )
 277         m_splitter->Unsplit();
 278     SetStatusText(_T("No splitter"));
 279 }
 280
 281 void MyFrame::ToggleLive(wxCommandEvent& event )
 282 {
 283     long style = m_splitter->GetWindowStyleFlag();
 284     if ( event.IsChecked() )
 285         style |= wxSP_LIVE_UPDATE;
 286     else
 287         style &= ~wxSP_LIVE_UPDATE;
 288
 289     m_splitter->SetWindowStyleFlag(style);
 290 }
 291
 292 void MyFrame::SetPosition(wxCommandEvent& WXUNUSED(event) )
 293 {
 294     wxString str;
 295     str.Printf( wxT("%d"), m_splitter->GetSashPosition());
 296     str = wxGetTextFromUser(_T("Enter splitter position:"), _T(""), str, this);
 297     if ( str.empty() )
 298         return;
 299
 300     long pos;
 301     if ( !str.ToLong(&pos) )
 302     {
 303         wxLogError(_T("The splitter position should be an integer."));
 304         return;
 305     }
 306
 307     m_splitter->SetSashPosition(pos);
 308
 309     wxLogStatus(this, _T("Splitter position set to %ld"), pos);
 310 }
 311
 312 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 313 {
 314     wxString str;
 315     str.Printf( wxT("%d"), m_splitter->GetMinimumPaneSize());
 316     str = wxGetTextFromUser(_T("Enter minimal size for panes:"), _T(""), str, this);
 317     if ( str.empty() )
 318         return;
 319
 320     int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 321     m_splitter->SetMinimumPaneSize(minsize);
 322     str.Printf( wxT("Min pane size = %d"), minsize);
 323     SetStatusText(str, 1);
 324 }
 325
 326 // Update UI handlers
 327
 328 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 329 {
 330     event.Enable( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );
 331 }
 332
 333 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 334 {
 335     event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 336 }
 337
 338 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 339 {
 340     event.Enable( m_splitter->IsSplit() );
 341 }
 342
 343 // ----------------------------------------------------------------------------
 344 // MySplitterWindow
 345 // ----------------------------------------------------------------------------
 346
 347 BEGIN_EVENT_TABLE(MySplitterWindow, wxSplitterWindow)
 348     EVT_SPLITTER_SASH_POS_CHANGED(-1, MySplitterWindow::OnPositionChanged)
 349     EVT_SPLITTER_SASH_POS_CHANGING(-1, MySplitterWindow::OnPositionChanging)
 350
 351     EVT_SPLITTER_DCLICK(-1, MySplitterWindow::OnDClick)
 352
 353     EVT_SPLITTER_UNSPLIT(-1, MySplitterWindow::OnUnsplit)
 354 END_EVENT_TABLE()
 355
 356 MySplitterWindow::MySplitterWindow(wxFrame *parent)
 357                 : wxSplitterWindow(parent, -1,
 358                                    wxDefaultPosition, wxDefaultSize,
 359                                    0x700| wxSP_LIVE_UPDATE | wxCLIP_CHILDREN)
 360 {
 361     m_frame = parent;
 362 }
 363
 364 void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
 365 {
 366     wxLogStatus(m_frame, _T("Position has changed, now = %d (or %d)"),
 367                 event.GetSashPosition(), GetSashPosition());
 368
 369     event.Skip();
 370 }
 371
 372 void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
 373 {
 374     wxLogStatus(m_frame, _T("Position is changing, now = %d (or %d)"),
 375                 event.GetSashPosition(), GetSashPosition());
 376
 377     event.Skip();
 378 }
 379
 380 void MySplitterWindow::OnDClick(wxSplitterEvent& event)
 381 {
 382     m_frame->SetStatusText(_T("Splitter double clicked"), 1);
 383
 384     event.Skip();
 385 }
 386
 387 void MySplitterWindow::OnUnsplit(wxSplitterEvent& event)
 388 {
 389     m_frame->SetStatusText(_T("Splitter unsplit"), 1);
 390
 391     event.Skip();
 392 }
 393
 394 // ----------------------------------------------------------------------------
 395 // MyCanvas
 396 // ----------------------------------------------------------------------------
 397
 398 MyCanvas::MyCanvas(wxWindow* parent, bool mirror)
 399         : wxScrolledWindow(parent, -1, wxDefaultPosition, wxDefaultSize,
 400                            wxHSCROLL | wxVSCROLL | wxNO_FULL_REPAINT_ON_RESIZE)
 401 {
 402     m_mirror = mirror;
 403 }
 404
 405 MyCanvas::~MyCanvas()
 406 {
 407 }
 408
 409 void MyCanvas::OnDraw(wxDC& dcOrig)
 410 {
 411     wxMirrorDC dc(dcOrig, m_mirror);
 412
 413     dc.SetPen(*wxBLACK_PEN);
 414     dc.DrawLine(0, 0, 100, 200);
 415
 416     dc.SetBackgroundMode(wxTRANSPARENT);
 417     dc.DrawText(_T("Testing"), 50, 50);
 418
 419     dc.SetPen(*wxRED_PEN);
 420     dc.SetBrush(*wxGREEN_BRUSH);
 421     dc.DrawRectangle(120, 120, 100, 80);
 422 }
 423