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, wxSP_3D | wxSP_LIVE_UPDATE)
  40   {
  41     m_frame = parent;
  42   }
  43
  44   virtual bool OnSashPositionChange(int newSashPosition)
  45   {
  46     if ( !wxSplitterWindow::OnSashPositionChange(newSashPosition) )
  47       return FALSE;
  48
  49     wxString str;
  50     str.Printf( _T("Sash position = %d"), newSashPosition);
  51     m_frame->SetStatusText(str);
  52
  53     return TRUE;
  54   }
  55
  56 private:
  57   wxFrame *m_frame;
  58 };
  59
  60 class MyFrame: public wxFrame
  61 {
  62 public:
  63   MyFrame(wxFrame* frame, const wxString& title, const wxPoint& pos, const wxSize& size);
  64   virtual ~MyFrame();
  65
  66   // Menu commands
  67   void SplitHorizontal(wxCommandEvent& event);
  68   void SplitVertical(wxCommandEvent& event);
  69   void Unsplit(wxCommandEvent& event);
  70   void SetMinSize(wxCommandEvent& event);
  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   void UpdatePosition();
  80
  81   wxMenu*    fileMenu;
  82   wxMenuBar*  menuBar;
  83   MyCanvas*  m_leftCanvas;
  84   MyCanvas*  m_rightCanvas;
  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, int x, int y, int w, int h, 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, const wxPoint& pos, const wxSize& size):
 149         wxFrame(frame, SPLITTER_FRAME, title, pos, size)
 150 {
 151   CreateStatusBar(2);
 152
 153   // Make a menubar
 154   fileMenu = new wxMenu;
 155   fileMenu->Append(SPLIT_VERTICAL, "Split &Vertically\tCtrl-V", "Split vertically");
 156   fileMenu->Append(SPLIT_HORIZONTAL, "Split &Horizontally\tCtrl-H", "Split horizontally");
 157   fileMenu->Append(SPLIT_UNSPLIT, "&Unsplit\tCtrl-U", "Unsplit");
 158   fileMenu->AppendSeparator();
 159   fileMenu->Append(SPLIT_SETMINSIZE, "Set &min size", "Set minimum pane size");
 160   fileMenu->AppendSeparator();
 161   fileMenu->Append(SPLIT_QUIT, "E&xit\tAlt-X", "Exit");
 162
 163   menuBar = new wxMenuBar;
 164   menuBar->Append(fileMenu, "&File");
 165
 166   SetMenuBar(menuBar);
 167
 168   m_splitter = new MySplitterWindow(this, SPLITTER_WINDOW);
 169
 170   wxSize sz( m_splitter->GetSize() );
 171   wxLogMessage( "Initial splitter size: %d %d\n", (int)sz.x, (int)sz.y );
 172
 173   m_leftCanvas = new MyCanvas(m_splitter, CANVAS1, 0, 0, 400, 400, "Test1" );
 174   m_leftCanvas->SetBackgroundColour(*wxRED);
 175   m_leftCanvas->SetScrollbars(20, 20, 50, 50);
 176   m_leftCanvas->SetCursor(wxCursor(wxCURSOR_MAGNIFIER));
 177
 178   m_rightCanvas = new MyCanvas(m_splitter, CANVAS2, 0, 0, 400, 400, "Test2" );
 179   m_rightCanvas->SetBackgroundColour(*wxCYAN);
 180   m_rightCanvas->SetScrollbars(20, 20, 50, 50);
 181   m_rightCanvas->Show(FALSE);
 182
 183   m_splitter->Initialize(m_leftCanvas);
 184   SetStatusText("Min pane size = 0", 1);
 185 }
 186
 187 MyFrame::~MyFrame()
 188 {
 189 }
 190
 191 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 192 {
 193   Close(TRUE);
 194 }
 195
 196 void MyFrame::SplitHorizontal(wxCommandEvent& WXUNUSED(event) )
 197 {
 198   if ( m_splitter->IsSplit() )
 199     m_splitter->Unsplit();
 200   m_leftCanvas->Show(TRUE);
 201   m_rightCanvas->Show(TRUE);
 202   m_splitter->SplitHorizontally( m_leftCanvas, m_rightCanvas );
 203   UpdatePosition();
 204 }
 205
 206 void MyFrame::SplitVertical(wxCommandEvent& WXUNUSED(event) )
 207 {
 208   if ( m_splitter->IsSplit() )
 209     m_splitter->Unsplit();
 210   m_leftCanvas->Show(TRUE);
 211   m_rightCanvas->Show(TRUE);
 212   m_splitter->SplitVertically( m_leftCanvas, m_rightCanvas );
 213   UpdatePosition();
 214 }
 215
 216 void MyFrame::Unsplit(wxCommandEvent& WXUNUSED(event) )
 217 {
 218   if ( m_splitter->IsSplit() )
 219     m_splitter->Unsplit();
 220   SetStatusText("No splitter");
 221 }
 222
 223 void MyFrame::SetMinSize(wxCommandEvent& WXUNUSED(event) )
 224 {
 225   wxString str;
 226   str.Printf( _T("%d"), m_splitter->GetMinimumPaneSize());
 227   str = wxGetTextFromUser("Enter minimal size for panes:", "", str, this);
 228   if ( str.IsEmpty() )
 229     return;
 230
 231   int minsize = wxStrtol( str, (wxChar**)NULL, 10 );
 232   m_splitter->SetMinimumPaneSize(minsize);
 233   str.Printf( _T("Min pane size = %d"), minsize);
 234   SetStatusText(str, 1);
 235 }
 236
 237 void MyFrame::UpdateUIHorizontal(wxUpdateUIEvent& event)
 238 {
 239   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_HORIZONTAL) ) );
 240 }
 241
 242 void MyFrame::UpdateUIVertical(wxUpdateUIEvent& event)
 243 {
 244   event.Enable( ( (!m_splitter->IsSplit()) || (m_splitter->GetSplitMode() != wxSPLIT_VERTICAL) ) );
 245 }
 246
 247 void MyFrame::UpdateUIUnsplit(wxUpdateUIEvent& event)
 248 {
 249   event.Enable( m_splitter->IsSplit() );
 250 }
 251
 252 void MyFrame::UpdatePosition()
 253 {
 254   wxString str;
 255   str.Printf( _("Sash position = %d"), m_splitter->GetSashPosition());
 256   SetStatusText(str);
 257 }
 258
 259 MyCanvas::MyCanvas(wxWindow* parent, wxWindowID id, int x, int y, int w, int h, const wxString &name ) :
 260         wxScrolledWindow(parent, id, wxPoint(x, y), wxSize(w, h), 0, name )
 261 {
 262 }
 263
 264 MyCanvas::~MyCanvas()
 265 {
 266 }
 267
 268 void MyCanvas::OnDraw(wxDC& dc)
 269 {
 270   dc.SetPen(*wxBLACK_PEN);
 271   dc.DrawLine(0, 0, 100, 100);
 272
 273   dc.SetBackgroundMode(wxTRANSPARENT);
 274   dc.DrawText("Testing", 50, 50);
 275
 276   dc.SetPen(*wxRED_PEN);
 277   dc.SetBrush(*wxGREEN_BRUSH);
 278   dc.DrawRectangle(120, 120, 100, 80);
 279 }