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 // For compilers that support precompilation, includes "wx/wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16 #pragma hdrstop
  17 #endif
  18
  19 #ifndef WX_PRECOMP
  20 #include "wx/wx.h"
  21 #endif
  22
  23 #include "wx/splitter.h"
  24
  25 class MyApp;
  26 class MyFrame;
  27 class MyCanvas;
  28
  29 class MyApp: public wxApp
  30 {
  31 public:
  32   bool OnInit();
  33 };
  34
  35 class MySplitterWindow : public wxSplitterWindow
  36 {
  37 public:
  38   MySplitterWindow(wxFrame *parent, wxWindowID id)
  39     : wxSplitterWindow(parent, id, wxDefaultPosition, wxDefaultSize,
  40                        wxSP_3D | wxSP_LIVE_UPDATE | wxCLIP_CHILDREN)
  41   {
  42     m_frame = parent;
  43   }
  44
  45   virtual bool OnSashPositionChange(int newSashPosition)
  46   {
  47     if ( !wxSplitterWindow::OnSashPositionChange(newSashPosition) )
  48       return FALSE;
  49
  50     wxString str;
  51     str.Printf( _T("Sash position = %d"), newSashPosition);
  52     m_frame->SetStatusText(str);
  53
  54     return TRUE;
  55   }
  56
  57 private:
  58   wxFrame *m_frame;
  59 };
  60
  61 class MyFrame: public wxFrame
  62 {
  63 public:
  64   MyFrame(wxFrame* frame, const wxString& title, const wxPoint& pos, const wxSize& size);
  65   virtual ~MyFrame();
  66
  67   // Menu commands
  68   void SplitHorizontal(wxCommandEvent& event);
  69   void SplitVertical(wxCommandEvent& event);
  70   void Unsplit(wxCommandEvent& event);
  71   void SetMinSize(wxCommandEvent& event);
  72   void Quit(wxCommandEvent& event);
  73
  74   // Menu command update functions
  75   void UpdateUIHorizontal(wxUpdateUIEvent& event);
  76   void UpdateUIVertical(wxUpdateUIEvent& event);
  77   void UpdateUIUnsplit(wxUpdateUIEvent& event);
  78
  79 private:
  80   void UpdatePosition();
  81
  82   wxScrolledWindow *m_left, *m_right;
  83
  84   MySplitterWindow* m_splitter;
  85
  86   DECLARE_EVENT_TABLE()
  87 };
  88
  89 class MyCanvas: public wxScrolledWindow
  90 {
  91 public:
  92     MyCanvas(wxWindow* parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, const wxString& name = "");
  93     virtual ~MyCanvas();
  94
  95   virtual void OnDraw(wxDC& dc);
  96
  97 DECLARE_EVENT_TABLE()
  98 };
  99
 100 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 101 END_EVENT_TABLE()
 102
 103 // ID for the menu commands
 104 enum
 105 {
 106   SPLIT_QUIT,
 107   SPLIT_HORIZONTAL,
 108   SPLIT_VERTICAL,
 109   SPLIT_UNSPLIT,
 110   SPLIT_SETMINSIZE
 111 };
 112
 113 // Window ids
 114 #define SPLITTER_WINDOW     100
 115 #define SPLITTER_FRAME      101
 116 #define CANVAS1             102
 117 #define CANVAS2             103
 118
 119 IMPLEMENT_APP(MyApp)
 120
 121 bool MyApp::OnInit(void)
 122 {
 123   MyFrame* frame = new MyFrame((wxFrame *) NULL, "wxSplitterWindow Example",
 124                                wxPoint(50, 50), wxSize(420, 300));
 125
 126   // Show the frame
 127   frame->Show(TRUE);
 128
 129   SetTopWindow(frame);
 130
 131   return TRUE;
 132 }
 133
 134 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 135   EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
 136   EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
 137   EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
 138   EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
 139   EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
 140
 141   EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
 142   EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
 143   EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
 144 END_EVENT_TABLE()
 145
 146 // My frame constructor
 147 MyFrame::MyFrame(wxFrame* frame, const wxString& title,
 148                  const wxPoint& pos, const wxSize& size)
 149        : wxFrame(frame, SPLITTER_FRAME, title, pos, size,
 150                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 151 {
 152   CreateStatusBar(2);
 153
 154   // Make a menubar
 155   wxMenu *fileMenu = new wxMenu;
 156   fileMenu->Append(SPLIT_VERTICAL, "Split &Vertically\tCtrl-V", "Split vertically");
 157   fileMenu->Append(SPLIT_HORIZONTAL, "Split &Horizontally\tCtrl-H", "Split horizontally");
 158   fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit\tCtrl-U", "Unsplit");
 159   fileMenu->AppendSeparator();
 160   fileMenu->Append(SPLIT_SETMINSIZE, "Set &min size", "Set minimum pane size");
 161   fileMenu->AppendSeparator();
 162   fileMenu->Append(SPLIT_QUIT, "E&xit\tAlt-X", "Exit");
 163
 164   wxMenuBar *menuBar = new wxMenuBar;
 165   menuBar->Append(fileMenu, "&File");
 166
 167   SetMenuBar(menuBar);
 168
 169   m_splitter = new MySplitterWindow(this, SPLITTER_WINDOW);
 170
 171 #if 1
 172   m_left = new MyCanvas(m_splitter, CANVAS1, wxPoint(0, 0), wxSize(400, 400), "Test1" );
 173   m_left->SetBackgroundColour(*wxRED);
 174   m_left->SetScrollbars(20, 20, 50, 50);
 175   m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 176
 177   m_right = new MyCanvas(m_splitter, CANVAS2, wxPoint(0, 0), wxSize(400, 400), "Test2" );
 178   m_right->SetBackgroundColour(*wxCYAN);
 179   m_right->SetScrollbars(20, 20, 50, 50);
 180 #else // for testing kbd navigation inside the splitter
 181   m_left = new wxTextCtrl(m_splitter, -1, "first text");
 182   m_right = new wxTextCtrl(m_splitter, -1, "second text");
 183 #endif
 184
 185   // you can also do this to start with a single window
 186 #if 0
 187   m_right->Show(FALSE);
 188   m_splitter->Initialize(m_left);
 189 #else
 190   m_splitter->SplitVertically(m_left, m_right, 100);
 191 #endif
 192
 193   SetStatusText("Min pane size = 0", 1);
 194 }
 195
 196 MyFrame::~MyFrame()
 197 {
 198 }
 199
 200 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 201 {
 202   Close(TRUE);
 203 }
 204
 205 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 206 {
 207   if ( m_splitter->IsSplit() )
 208     m_splitter->Unsplit();
 209   m_left->Show(TRUE);
 210   m_right->Show(TRUE);
 211   m_splitter->SplitHorizontally( m_left, m_right );
 212   UpdatePosition();
 213 }
 214
 215 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 216 {
 217   if ( m_splitter->IsSplit() )
 218     m_splitter->Unsplit();
 219   m_left->Show(TRUE);
 220   m_right->Show(TRUE);
 221   m_splitter->SplitVertically( m_left, m_right );
 222   UpdatePosition();
 223 }
 224
 225 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 226 {
 227   if ( m_splitter->IsSplit() )
 228     m_splitter->Unsplit();
 229   SetStatusText("No splitter");
 230 }
 231
 232 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 233 {
 234   wxString str;
 235   str.Printf( _T("%d"), m_splitter->GetMinimumPaneSize());
 236   str = wxGetTextFromUser("Enter minimal size for panes:", "", str, this);
 237   if ( str.IsEmpty() )
 238     return;
 239
 240   int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 241   m_splitter->SetMinimumPaneSize(minsize);
 242   str.Printf( _T("Min pane size = %d"), minsize);
 243   SetStatusText(str, 1);
 244 }
 245
 246 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 247 {
 248   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) ) );
 249 }
 250
 251 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 252 {
 253   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 254 }
 255
 256 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 257 {
 258   event.Enable( m_splitter->IsSplit() );
 259 }
 260
 261 void MyFrame::UpdatePosition()
 262 {
 263   wxString str;
 264   str.Printf( _("Sash position = %d"), m_splitter->GetSashPosition());
 265   SetStatusText(str);
 266 }
 267
 268 MyCanvas::MyCanvas(wxWindow* parent, wxWindowID id, const wxPoint& point, const wxSize& size, const wxString &name ) :
 269     wxScrolledWindow(parent, id, point, size, 0, name )
 270 {
 271 }
 272
 273 MyCanvas::~MyCanvas()
 274 {
 275 }
 276
 277 void MyCanvas::OnDraw(wxDC& dc)
 278 {
 279   dc.SetPen(*wxBLACK_PEN);
 280   dc.DrawLine(0, 0, 100, 100);
 281
 282   dc.SetBackgroundMode(wxTRANSPARENT);
 283   dc.DrawText("Testing", 50, 50);
 284
 285   dc.SetPen(*wxRED_PEN);
 286   dc.SetBrush(*wxGREEN_BRUSH);
 287   dc.DrawRectangle(120, 120, 100, 80);
 288 }