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   wxWindow *m_left,
  83            *m_right;
  84
  85   MySplitterWindow* m_splitter;
  86
  87   DECLARE_EVENT_TABLE()
  88 };
  89
  90 class MyCanvas: public wxScrolledWindow
  91 {
  92 public:
  93     MyCanvas(wxWindow* parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, const wxString& name = "");
  94     virtual ~MyCanvas();
  95
  96   virtual void OnDraw(wxDC& dc);
  97
  98 DECLARE_EVENT_TABLE()
  99 };
 100
 101 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 102 END_EVENT_TABLE()
 103
 104 // ID for the menu commands
 105 enum
 106 {
 107   SPLIT_QUIT,
 108   SPLIT_HORIZONTAL,
 109   SPLIT_VERTICAL,
 110   SPLIT_UNSPLIT,
 111   SPLIT_SETMINSIZE
 112 };
 113
 114 // Window ids
 115 #define SPLITTER_WINDOW     100
 116 #define SPLITTER_FRAME      101
 117 #define CANVAS1             102
 118 #define CANVAS2             103
 119
 120 IMPLEMENT_APP(MyApp)
 121
 122 bool MyApp::OnInit(void)
 123 {
 124   MyFrame* frame = new MyFrame((wxFrame *) NULL, "wxSplitterWindow Example",
 125                                wxPoint(50, 50), wxSize(420, 300));
 126
 127   // Show the frame
 128   frame->Show(TRUE);
 129
 130   SetTopWindow(frame);
 131
 132   return TRUE;
 133 }
 134
 135 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 136   EVT_MENU(SPLIT_VERTICAL, MyFrame::SplitVertical)
 137   EVT_MENU(SPLIT_HORIZONTAL, MyFrame::SplitHorizontal)
 138   EVT_MENU(SPLIT_UNSPLIT, MyFrame::Unsplit)
 139   EVT_MENU(SPLIT_QUIT, MyFrame::Quit)
 140   EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
 141
 142   EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
 143   EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
 144   EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
 145 END_EVENT_TABLE()
 146
 147 // My frame constructor
 148 MyFrame::MyFrame(wxFrame* frame, const wxString& title,
 149                  const wxPoint& pos, const wxSize& size)
 150        : wxFrame(frame, SPLITTER_FRAME, title, pos, size,
 151                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 152 {
 153   CreateStatusBar(2);
 154
 155   // Make a menubar
 156   wxMenu *fileMenu = new wxMenu;
 157   fileMenu->Append(SPLIT_VERTICAL, "Split &Vertically\tCtrl-V", "Split vertically");
 158   fileMenu->Append(SPLIT_HORIZONTAL, "Split &Horizontally\tCtrl-H", "Split horizontally");
 159   fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit\tCtrl-U", "Unsplit");
 160   fileMenu->AppendSeparator();
 161   fileMenu->Append(SPLIT_SETMINSIZE, "Set &min size", "Set minimum pane size");
 162   fileMenu->AppendSeparator();
 163   fileMenu->Append(SPLIT_QUIT, "E&xit\tAlt-X", "Exit");
 164
 165   wxMenuBar *menuBar = new wxMenuBar;
 166   menuBar->Append(fileMenu, "&File");
 167
 168   SetMenuBar(menuBar);
 169
 170   m_splitter = new MySplitterWindow(this, SPLITTER_WINDOW);
 171
 172 #if 1
 173   m_left = new MyCanvas(m_splitter, CANVAS1, wxPoint(0, 0), wxSize(400, 400), "Test1" );
 174   m_left->SetBackgroundColour(*wxRED);
 175   m_left->SetScrollbars(20, 20, 50, 50);
 176   m_left->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 177
 178   m_right = new MyCanvas(m_splitter, CANVAS2, wxPoint(0, 0), wxSize(400, 400), "Test2" );
 179   m_right->SetBackgroundColour(*wxCYAN);
 180   m_right->SetScrollbars(20, 20, 50, 50);
 181 #else // for testing kbd navigation inside the splitter
 182   m_left = new wxTextCtrl(m_splitter, -1, "first text");
 183   m_right = new wxTextCtrl(m_splitter, -1, "second text");
 184 #endif
 185
 186   // you can also do this to start with a single window
 187 #if 0
 188   m_right->Show(FALSE);
 189   m_splitter->Initialize(m_left);
 190 #else
 191   m_splitter->SplitVertically(m_left, m_right, 100);
 192 #endif
 193
 194   SetStatusText("Min pane size = 0", 1);
 195 }
 196
 197 MyFrame::~MyFrame()
 198 {
 199 }
 200
 201 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 202 {
 203   Close(TRUE);
 204 }
 205
 206 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 207 {
 208   if ( m_splitter->IsSplit() )
 209     m_splitter->Unsplit();
 210   m_left->Show(TRUE);
 211   m_right->Show(TRUE);
 212   m_splitter->SplitHorizontally( m_left, m_right );
 213   UpdatePosition();
 214 }
 215
 216 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 217 {
 218   if ( m_splitter->IsSplit() )
 219     m_splitter->Unsplit();
 220   m_left->Show(TRUE);
 221   m_right->Show(TRUE);
 222   m_splitter->SplitVertically( m_left, m_right );
 223   UpdatePosition();
 224 }
 225
 226 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 227 {
 228   if ( m_splitter->IsSplit() )
 229     m_splitter->Unsplit();
 230   SetStatusText("No splitter");
 231 }
 232
 233 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 234 {
 235   wxString str;
 236   str.Printf( _T("%d"), m_splitter->GetMinimumPaneSize());
 237   str = wxGetTextFromUser("Enter minimal size for panes:", "", str, this);
 238   if ( str.IsEmpty() )
 239     return;
 240
 241   int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 242   m_splitter->SetMinimumPaneSize(minsize);
 243   str.Printf( _T("Min pane size = %d"), minsize);
 244   SetStatusText(str, 1);
 245 }
 246
 247 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 248 {
 249   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) ) );
 250 }
 251
 252 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 253 {
 254   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 255 }
 256
 257 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 258 {
 259   event.Enable( m_splitter->IsSplit() );
 260 }
 261
 262 void MyFrame::UpdatePosition()
 263 {
 264   wxString str;
 265   str.Printf( _("Sash position = %d"), m_splitter->GetSashPosition());
 266   SetStatusText(str);
 267 }
 268
 269 MyCanvas::MyCanvas(wxWindow* parent, wxWindowID id, const wxPoint& point, const wxSize& size, const wxString &name ) :
 270     wxScrolledWindow(parent, id, point, size, 0, name )
 271 {
 272 }
 273
 274 MyCanvas::~MyCanvas()
 275 {
 276 }
 277
 278 void MyCanvas::OnDraw(wxDC& dc)
 279 {
 280   dc.SetPen(*wxBLACK_PEN);
 281   dc.DrawLine(0, 0, 100, 100);
 282
 283   dc.SetBackgroundMode(wxTRANSPARENT);
 284   dc.DrawText("Testing", 50, 50);
 285
 286   dc.SetPen(*wxRED_PEN);
 287   dc.SetBrush(*wxGREEN_BRUSH);
 288   dc.DrawRectangle(120, 120, 100, 80);
 289 }