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   wxMenu*    fileMenu;
  83   wxMenuBar*  menuBar;
  84   MyCanvas*  m_leftCanvas;
  85   MyCanvas*  m_rightCanvas;
  86   MySplitterWindow* m_splitter;
  87
  88 DECLARE_EVENT_TABLE()
  89 };
  90
  91 class MyCanvas: public wxScrolledWindow
  92 {
  93 public:
  94     MyCanvas(wxWindow* parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, const wxString& name = "");
  95     virtual ~MyCanvas();
  96
  97   virtual void OnDraw(wxDC& dc);
  98
  99 DECLARE_EVENT_TABLE()
 100 };
 101
 102 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 103 END_EVENT_TABLE()
 104
 105 // ID for the menu commands
 106 enum
 107 {
 108   SPLIT_QUIT,
 109   SPLIT_HORIZONTAL,
 110   SPLIT_VERTICAL,
 111   SPLIT_UNSPLIT,
 112   SPLIT_SETMINSIZE
 113 };
 114
 115 // Window ids
 116 #define SPLITTER_WINDOW     100
 117 #define SPLITTER_FRAME      101
 118 #define CANVAS1             102
 119 #define CANVAS2             103
 120
 121 IMPLEMENT_APP(MyApp)
 122
 123 bool MyApp::OnInit(void)
 124 {
 125   MyFrame* frame = new MyFrame((wxFrame *) NULL, "wxSplitterWindow Example",
 126                                wxPoint(50, 50), wxSize(420, 300));
 127
 128   // Show the frame
 129   frame->Show(TRUE);
 130
 131   SetTopWindow(frame);
 132
 133   return TRUE;
 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_QUIT, MyFrame::Quit)
 141   EVT_MENU(SPLIT_SETMINSIZE, MyFrame::SetMinSize)
 142
 143   EVT_UPDATE_UI(SPLIT_VERTICAL, MyFrame::UpdateUIVertical)
 144   EVT_UPDATE_UI(SPLIT_HORIZONTAL, MyFrame::UpdateUIHorizontal)
 145   EVT_UPDATE_UI(SPLIT_UNSPLIT, MyFrame::UpdateUIUnsplit)
 146 END_EVENT_TABLE()
 147
 148 // My frame constructor
 149 MyFrame::MyFrame(wxFrame* frame, const wxString& title,
 150                  const wxPoint& pos, const wxSize& size)
 151        : wxFrame(frame, SPLITTER_FRAME, title, pos, size,
 152                  wxDEFAULT_FRAME_STYLE | wxNO_FULL_REPAINT_ON_RESIZE)
 153 {
 154   CreateStatusBar(2);
 155
 156   // Make a menubar
 157   fileMenu = new wxMenu;
 158   fileMenu->Append(SPLIT_VERTICAL, "Split &Vertically\tCtrl-V", "Split vertically");
 159   fileMenu->Append(SPLIT_HORIZONTAL, "Split &Horizontally\tCtrl-H", "Split horizontally");
 160   fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit\tCtrl-U", "Unsplit");
 161   fileMenu->AppendSeparator();
 162   fileMenu->Append(SPLIT_SETMINSIZE, "Set &min size", "Set minimum pane size");
 163   fileMenu->AppendSeparator();
 164   fileMenu->Append(SPLIT_QUIT, "E&xit\tAlt-X", "Exit");
 165
 166   menuBar = new wxMenuBar;
 167   menuBar->Append(fileMenu, "&File");
 168
 169   SetMenuBar(menuBar);
 170
 171   m_splitter = new MySplitterWindow(this, SPLITTER_WINDOW);
 172
 173 #if 0
 174   wxSize sz( m_splitter->GetSize() );
 175   wxLogMessage( "Initial splitter size: %d %d\n", (int)sz.x, (int)sz.y );
 176 #endif // 0
 177
 178   m_leftCanvas = new MyCanvas(m_splitter, CANVAS1, wxPoint(0, 0), wxSize(400, 400), "Test1" );
 179   m_leftCanvas->SetBackgroundColour(*wxRED);
 180   m_leftCanvas->SetScrollbars(20, 20, 50, 50);
 181   m_leftCanvas->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 182
 183   m_rightCanvas = new MyCanvas(m_splitter, CANVAS2, wxPoint(0, 0), wxSize(400, 400), "Test2" );
 184   m_rightCanvas->SetBackgroundColour(*wxCYAN);
 185   m_rightCanvas->SetScrollbars(20, 20, 50, 50);
 186
 187   // you can also do this to start with a single window
 188 #if 0
 189   m_rightCanvas->Show(FALSE);
 190   m_splitter->Initialize(m_leftCanvas);
 191 #else
 192   m_splitter->SplitVertically(m_leftCanvas, m_rightCanvas, 100);
 193 #endif
 194
 195   SetStatusText("Min pane size = 0", 1);
 196 }
 197
 198 MyFrame::~MyFrame()
 199 {
 200 }
 201
 202 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 203 {
 204   Close(TRUE);
 205 }
 206
 207 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 208 {
 209   if ( m_splitter->IsSplit() )
 210     m_splitter->Unsplit();
 211   m_leftCanvas->Show(TRUE);
 212   m_rightCanvas->Show(TRUE);
 213   m_splitter->SplitHorizontally( m_leftCanvas, m_rightCanvas );
 214   UpdatePosition();
 215 }
 216
 217 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 218 {
 219   if ( m_splitter->IsSplit() )
 220     m_splitter->Unsplit();
 221   m_leftCanvas->Show(TRUE);
 222   m_rightCanvas->Show(TRUE);
 223   m_splitter->SplitVertically( m_leftCanvas, m_rightCanvas );
 224   UpdatePosition();
 225 }
 226
 227 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 228 {
 229   if ( m_splitter->IsSplit() )
 230     m_splitter->Unsplit();
 231   SetStatusText("No splitter");
 232 }
 233
 234 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 235 {
 236   wxString str;
 237   str.Printf( _T("%d"), m_splitter->GetMinimumPaneSize());
 238   str = wxGetTextFromUser("Enter minimal size for panes:", "", str, this);
 239   if ( str.IsEmpty() )
 240     return;
 241
 242   int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 243   m_splitter->SetMinimumPaneSize(minsize);
 244   str.Printf( _T("Min pane size = %d"), minsize);
 245   SetStatusText(str, 1);
 246 }
 247
 248 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 249 {
 250   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) ) );
 251 }
 252
 253 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 254 {
 255   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 256 }
 257
 258 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 259 {
 260   event.Enable( m_splitter->IsSplit() );
 261 }
 262
 263 void MyFrame::UpdatePosition()
 264 {
 265   wxString str;
 266   str.Printf( _("Sash position = %d"), m_splitter->GetSashPosition());
 267   SetStatusText(str);
 268 }
 269
 270 MyCanvas::MyCanvas(wxWindow* parent, wxWindowID id, const wxPoint& point, const wxSize& size, const wxString &name ) :
 271     wxScrolledWindow(parent, id, point, size, 0, name )
 272 {
 273 }
 274
 275 MyCanvas::~MyCanvas()
 276 {
 277 }
 278
 279 void MyCanvas::OnDraw(wxDC& dc)
 280 {
 281   dc.SetPen(*wxBLACK_PEN);
 282   dc.DrawLine(0, 0, 100, 100);
 283
 284   dc.SetBackgroundMode(wxTRANSPARENT);
 285   dc.DrawText("Testing", 50, 50);
 286
 287   dc.SetPen(*wxRED_PEN);
 288   dc.SetBrush(*wxGREEN_BRUSH);
 289   dc.DrawRectangle(120, 120, 100, 80);
 290 }