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 and Markus Holzem
   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/wx.h"
  29 #endif
  30
  31 #include "wx/splitter.h"
  32
  33 // ----------------------------------------------------------------------------
  34 // constants
  35 // ----------------------------------------------------------------------------
  36
  37 // ID for the menu commands
  38 enum
  39 {
  40     SPLIT_QUIT,
  41     SPLIT_HORIZONTAL,
  42     SPLIT_VERTICAL,
  43     SPLIT_UNSPLIT,
  44     SPLIT_LIVE,
  45     SPLIT_SETMINSIZE
  46 };
  47
  48 // ----------------------------------------------------------------------------
  49 // our classes
  50 // ----------------------------------------------------------------------------
  51
  52 class MyApp: public wxApp
  53 {
  54 public:
  55     bool OnInit();
  56 };
  57
  58 class MyFrame: public wxFrame
  59 {
  60 public:
  61     MyFrame();
  62     virtual ~MyFrame();
  63
  64     // Menu commands
  65     void SplitHorizontal(wxCommandEvent& event);
  66     void SplitVertical(wxCommandEvent& event);
  67     void Unsplit(wxCommandEvent& event);
  68     void ToggleLive(wxCommandEvent& event);
  69     void SetMinSize(wxCommandEvent& event);
  70
  71     void Quit(wxCommandEvent& event);
  72
  73     // Menu command update functions
  74     void UpdateUIHorizontal(wxUpdateUIEvent& event);
  75     void UpdateUIVertical(wxUpdateUIEvent& event);
  76     void UpdateUIUnsplit(wxUpdateUIEvent& event);
  77
  78 private:
  79     wxScrolledWindow *m_left, *m_right;
  80
  81     wxSplitterWindow* m_splitter;
  82
  83     DECLARE_EVENT_TABLE()
  84 };
  85
  86 class MySplitterWindow : public wxSplitterWindow
  87 {
  88 public:
  89     MySplitterWindow(wxFrame *parent);
  90
  91     // event handlers
  92     void OnPositionChanged(wxSplitterEvent& event);
  93     void OnPositionChanging(wxSplitterEvent& event);
  94     void OnDClick(wxSplitterEvent& event);
  95     void OnUnsplit(wxSplitterEvent& event);
  96
  97 private:
  98     wxFrame *m_frame;
  99
 100     DECLARE_EVENT_TABLE()
 101 };
 102
 103 class MyCanvas: public wxScrolledWindow
 104 {
 105 public:
 106     MyCanvas(wxWindow* parent);
 107     virtual ~MyCanvas();
 108
 109     virtual void OnDraw(wxDC& dc);
 110 };
 111
 112 // ============================================================================
 113 // implementation
 114 // ============================================================================
 115
 116 // ----------------------------------------------------------------------------
 117 // MyApp
 118 // ----------------------------------------------------------------------------
 119
 120 IMPLEMENT_APP(MyApp)
 121
 122 bool MyApp::OnInit()
 123 {
 124     // create and show the main frame
 125     MyFrame* frame = new MyFrame;
 126
 127     frame->Show(TRUE);
 128
 129     return TRUE;
 130 }
 131
 132 // ----------------------------------------------------------------------------
 133 // MyFrame
 134 // ----------------------------------------------------------------------------
 135
 136 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 137     EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
 138     EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
 139     EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
 140     EVT_MENU(SPLIT_LIVE, MyFrame::ToggleLive)
 141     EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
 142
 143     EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
 144
 145     EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
 146     EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
 147     EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
 148 END_EVENT_TABLE()
 149
 150 // My frame constructor
 151 MyFrame::MyFrame()
 152        : wxFrame(NULL, -1, _T("wxSplitterWindow sample"),
 153                  wxDefaultPosition, wxSize(420, 300),
 154                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 155 {
 156     CreateStatusBar(2);
 157
 158     // Make a menubar
 159     wxMenu *fileMenu = new wxMenu;
 160     fileMenu->Append(SPLIT_VERTICAL, _T("Split &Vertically\tCtrl-V"), _T("Split vertically"));
 161     fileMenu->Append(SPLIT_HORIZONTAL, _T("Split &Horizontally\tCtrl-H"), _T("Split horizontally"));
 162     fileMenu->Append(SPLIT_UNSPLIT, _T("&Unsplit\tCtrl-U"), _T("Unsplit"));
 163     fileMenu->AppendSeparator();
 164     fileMenu->Append(SPLIT_LIVE, _T("&Live update"), _T("Toggle live update mode"), TRUE);
 165     fileMenu->Append(SPLIT_SETMINSIZE, _T("Set &min size"), _T("Set minimum pane size"));
 166     fileMenu->AppendSeparator();
 167     fileMenu->Append(SPLIT_QUIT, _T("E&xit\tAlt-X"), _T("Exit"));
 168
 169     wxMenuBar *menuBar = new wxMenuBar;
 170     menuBar->Append(fileMenu, _T("&File"));
 171
 172     SetMenuBar(menuBar);
 173
 174     menuBar->Check(SPLIT_LIVE, TRUE);
 175     m_splitter = new MySplitterWindow(this);
 176
 177 #if 1
 178     m_left = new MyCanvas(m_splitter);
 179     m_left->SetBackgroundColour(*wxRED);
 180     m_left->SetScrollbars(20, 20, 50, 50);
 181     m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 182
 183     m_right = new MyCanvas(m_splitter);
 184     m_right->SetBackgroundColour(*wxCYAN);
 185     m_right->SetScrollbars(20, 20, 50, 50);
 186 #else // for testing kbd navigation inside the splitter
 187     m_left = new wxTextCtrl(m_splitter, -1, _T("first text"));
 188     m_right = new wxTextCtrl(m_splitter, -1, _T("second text"));
 189 #endif
 190
 191     // you can also do this to start with a single window
 192 #if 0
 193     m_right->Show(FALSE);
 194     m_splitter->Initialize(m_left);
 195 #else
 196     // you can also try -100
 197     m_splitter->SplitVertically(m_left, m_right, 100);
 198 #endif
 199
 200     SetStatusText(_T("Min pane size = 0"), 1);
 201 }
 202
 203 MyFrame::~MyFrame()
 204 {
 205 }
 206
 207 // menu command handlers
 208
 209 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 210 {
 211     Close(TRUE);
 212 }
 213
 214 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 215 {
 216     if ( m_splitter->IsSplit() )
 217         m_splitter->Unsplit();
 218     m_left->Show(TRUE);
 219     m_right->Show(TRUE);
 220     m_splitter->SplitHorizontally( m_left, m_right );
 221
 222     SetStatusText(_T("Splitter split horizontally"), 1);
 223 }
 224
 225 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 226 {
 227     if ( m_splitter->IsSplit() )
 228         m_splitter->Unsplit();
 229     m_left->Show(TRUE);
 230     m_right->Show(TRUE);
 231     m_splitter->SplitVertically( m_left, m_right );
 232
 233     SetStatusText(_T("Splitter split vertically"), 1);
 234 }
 235
 236 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 237 {
 238     if ( m_splitter->IsSplit() )
 239         m_splitter->Unsplit();
 240     SetStatusText(_T("No splitter"));
 241 }
 242
 243 void MyFrame::ToggleLive(wxCommandEvent& event )
 244 {
 245     long style = m_splitter->GetWindowStyleFlag();
 246     if ( event.IsChecked() )
 247         style |= wxSP_LIVE_UPDATE;
 248     else
 249         style &= ~wxSP_LIVE_UPDATE;
 250
 251     m_splitter->SetWindowStyleFlag(style);
 252 }
 253
 254 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 255 {
 256     wxString str;
 257     str.Printf( wxT("%d"), m_splitter->GetMinimumPaneSize());
 258     str = wxGetTextFromUser(_T("Enter minimal size for panes:"), _T(""), str, this);
 259     if ( str.IsEmpty() )
 260         return;
 261
 262     int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 263     m_splitter->SetMinimumPaneSize(minsize);
 264     str.Printf( wxT("Min pane size = %d"), minsize);
 265     SetStatusText(str, 1);
 266 }
 267
 268 // Update UI handlers
 269
 270 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 271 {
 272     event.Enable( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) );
 273 }
 274
 275 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 276 {
 277     event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 278 }
 279
 280 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 281 {
 282     event.Enable( m_splitter->IsSplit() );
 283 }
 284
 285 // ----------------------------------------------------------------------------
 286 // MySplitterWindow
 287 // ----------------------------------------------------------------------------
 288
 289 BEGIN_EVENT_TABLE(MySplitterWindow, wxSplitterWindow)
 290     EVT_SPLITTER_SASH_POS_CHANGED(-1, MySplitterWindow::OnPositionChanged)
 291     EVT_SPLITTER_SASH_POS_CHANGING(-1, MySplitterWindow::OnPositionChanging)
 292
 293     EVT_SPLITTER_DCLICK(-1, MySplitterWindow::OnDClick)
 294
 295     EVT_SPLITTER_UNSPLIT(-1, MySplitterWindow::OnUnsplit)
 296 END_EVENT_TABLE()
 297
 298 MySplitterWindow::MySplitterWindow(wxFrame *parent)
 299                 : wxSplitterWindow(parent, -1,
 300                                    wxDefaultPosition, wxDefaultSize,
 301                                    wxSP_3D | wxSP_LIVE_UPDATE | wxCLIP_CHILDREN)
 302 {
 303     m_frame = parent;
 304 }
 305
 306 void MySplitterWindow::OnPositionChanged(wxSplitterEvent& event)
 307 {
 308     wxLogStatus(m_frame, _T("Position has changed, now = %d (or %d)"),
 309                 event.GetSashPosition(), GetSashPosition());
 310
 311     event.Skip();
 312 }
 313
 314 void MySplitterWindow::OnPositionChanging(wxSplitterEvent& event)
 315 {
 316     wxLogStatus(m_frame, _T("Position is changing, now = %d (or %d)"),
 317                 event.GetSashPosition(), GetSashPosition());
 318
 319     event.Skip();
 320 }
 321
 322 void MySplitterWindow::OnDClick(wxSplitterEvent& event)
 323 {
 324     m_frame->SetStatusText(_T("Splitter double clicked"), 1);
 325
 326     event.Skip();
 327 }
 328
 329 void MySplitterWindow::OnUnsplit(wxSplitterEvent& event)
 330 {
 331     m_frame->SetStatusText(_T("Splitter unsplit"), 1);
 332
 333     event.Skip();
 334 }
 335
 336 // ----------------------------------------------------------------------------
 337 // MyCanvas
 338 // ----------------------------------------------------------------------------
 339
 340 MyCanvas::MyCanvas(wxWindow* parent)
 341         : wxScrolledWindow(parent, -1)
 342 {
 343 }
 344
 345 MyCanvas::~MyCanvas()
 346 {
 347 }
 348
 349 void MyCanvas::OnDraw(wxDC& dc)
 350 {
 351     dc.SetPen(*wxBLACK_PEN);
 352     dc.DrawLine(0, 0, 100, 100);
 353
 354     dc.SetBackgroundMode(wxTRANSPARENT);
 355     dc.DrawText(_T("Testing"), 50, 50);
 356
 357     dc.SetPen(*wxRED_PEN);
 358     dc.SetBrush(*wxGREEN_BRUSH);
 359     dc.DrawRectangle(120, 120, 100, 80);
 360 }
 361