samples/scroll/scroll.cpp

   1 /*
   2  * Program: scroll
   3  *
   4  * Author: Robert Roebling
   5  *
   6  * Copyright: (C) 1998, Robert Roebling
   7  *
   8  */
   9
  10 // For compilers that support precompilation, includes "wx/wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14 #pragma hdrstop
  15 #endif
  16
  17 #ifndef WX_PRECOMP
  18 #include "wx/wx.h"
  19 #endif
  20
  21 #include "wx/image.h"
  22 #include "wx/listctrl.h"
  23 #include "wx/sizer.h"
  24 #include "wx/log.h"
  25
  26
  27 // derived classes
  28
  29 class MyFrame;
  30 class MyApp;
  31
  32 // MyCanvas
  33
  34 class MyCanvas: public wxScrolledWindow
  35 {
  36 public:
  37     MyCanvas() {};
  38     MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
  39     ~MyCanvas();
  40     void OnPaint( wxPaintEvent &event );
  41     void OnQueryPosition( wxCommandEvent &event );
  42     void OnAddButton( wxCommandEvent &event );
  43     void OnDeleteButton( wxCommandEvent &event );
  44     void OnMoveButton( wxCommandEvent &event );
  45     void OnScrollWin( wxCommandEvent &event );
  46     void OnMouseDown( wxMouseEvent &event );
  47     void OnScroll( wxScrollWinEvent &event );
  48
  49     wxButton *m_button;
  50
  51     DECLARE_DYNAMIC_CLASS(MyCanvas)
  52     DECLARE_EVENT_TABLE()
  53 };
  54
  55 // MyFrame
  56
  57 class MyFrame: public wxFrame
  58 {
  59 public:
  60     MyFrame();
  61
  62     void OnAbout( wxCommandEvent &event );
  63     void OnQuit( wxCommandEvent &event );
  64
  65     MyCanvas         *m_canvas;
  66     wxTextCtrl       *m_log;
  67
  68     DECLARE_DYNAMIC_CLASS(MyFrame)
  69     DECLARE_EVENT_TABLE()
  70 };
  71
  72 // MyApp
  73
  74 class MyApp: public wxApp
  75 {
  76 public:
  77     virtual bool OnInit();
  78 };
  79
  80 // main program
  81
  82 IMPLEMENT_APP(MyApp)
  83
  84 // ids
  85
  86 #define   ID_ADDBUTTON    1
  87 #define   ID_DELBUTTON    2
  88 #define   ID_MOVEBUTTON   3
  89 #define   ID_SCROLLWIN    4
  90 #define   ID_QUERYPOS     5
  91
  92 #define   ID_NEWBUTTON    10
  93
  94 // MyCanvas
  95
  96 IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
  97
  98 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
  99   EVT_PAINT(                  MyCanvas::OnPaint)
 100   EVT_MOUSE_EVENTS(                  MyCanvas::OnMouseDown)
 101   EVT_BUTTON( ID_QUERYPOS,    MyCanvas::OnQueryPosition)
 102   EVT_BUTTON( ID_ADDBUTTON,   MyCanvas::OnAddButton)
 103   EVT_BUTTON( ID_DELBUTTON,   MyCanvas::OnDeleteButton)
 104   EVT_BUTTON( ID_MOVEBUTTON,  MyCanvas::OnMoveButton)
 105   EVT_BUTTON( ID_SCROLLWIN,   MyCanvas::OnScrollWin)
 106   EVT_SCROLLWIN(              MyCanvas::OnScroll)
 107 END_EVENT_TABLE()
 108
 109 MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
 110                     const wxPoint &pos, const wxSize &size )
 111         : wxScrolledWindow( parent, id, pos, size, wxSUNKEN_BORDER | wxTAB_TRAVERSAL, "test canvas" )
 112 {
 113     (void) new wxButton( this, ID_ADDBUTTON, "add button", wxPoint(10,10) );
 114     (void) new wxButton( this, ID_DELBUTTON, "del button", wxPoint(10,40) );
 115     (void) new wxButton( this, ID_MOVEBUTTON, "move button", wxPoint(150,10) );
 116     (void) new wxButton( this, ID_SCROLLWIN, "scroll win", wxPoint(250,10) );
 117
 118     wxString choices[] =
 119     {
 120         "This",
 121         "is one of my",
 122         "really",
 123         "wonderful",
 124         "examples."
 125     };
 126
 127     m_button = new wxButton( this, ID_QUERYPOS, "Query position", wxPoint(10,110) );
 128
 129     (void) new wxTextCtrl( this, -1, "wxTextCtrl", wxPoint(10,150), wxSize(80,-1) );
 130
 131     (void) new wxRadioButton( this, -1, "Disable", wxPoint(10,190) );
 132
 133     (void) new wxComboBox( this, -1, "This", wxPoint(10,230), wxDefaultSize, 5, choices );
 134
 135     (void) new wxRadioBox( this, -1, "This", wxPoint(10,310), wxDefaultSize, 5, choices, 2, wxRA_SPECIFY_COLS );
 136
 137     (void) new wxRadioBox( this, -1, "This", wxPoint(10,440), wxDefaultSize, 5, choices, 2, wxRA_SPECIFY_ROWS );
 138
 139     wxListCtrl *m_listCtrl = new wxListCtrl(
 140         this, -1, wxPoint(200, 110), wxSize(180, 120),
 141         wxLC_REPORT | wxSIMPLE_BORDER | wxLC_SINGLE_SEL );
 142
 143     m_listCtrl->InsertColumn(0, "First", wxLIST_FORMAT_LEFT, 90);
 144     m_listCtrl->InsertColumn(1, "Last", wxLIST_FORMAT_LEFT, 90);
 145
 146     for ( int i=0; i < 30; i++)
 147     {
 148         char buf[20];
 149         sprintf(buf, "Item %d", i);
 150         m_listCtrl->InsertItem(i, buf);
 151     }
 152     m_listCtrl->SetItemState( 3, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED );
 153
 154     (void) new wxListBox( this, -1, wxPoint(260,280), wxSize(120,120), 5, choices, wxLB_ALWAYS_SB );
 155
 156     wxPanel *test = new wxPanel( this, -1, wxPoint(10, 530), wxSize(130,120), wxSIMPLE_BORDER | wxTAB_TRAVERSAL );
 157     test->SetBackgroundColour( "WHEAT" );
 158     wxButton *test2 = new wxButton( test, -1, "Hallo", wxPoint(10,10) );
 159
 160     test = new wxPanel( this, -1, wxPoint(160, 530), wxSize(130,120), wxSUNKEN_BORDER | wxTAB_TRAVERSAL );
 161     test->SetBackgroundColour( "WHEAT" );
 162     test->SetCursor( wxCursor( wxCURSOR_NO_ENTRY ) );
 163     test2 = new wxButton( test, -1, "Hallo", wxPoint(10,10) );
 164     test2->SetCursor( wxCursor( wxCURSOR_PENCIL ) );
 165
 166     test = new wxPanel( this, -1, wxPoint(310, 530), wxSize(130,120), wxRAISED_BORDER | wxTAB_TRAVERSAL );
 167     test->SetBackgroundColour( "WHEAT" );
 168     test->SetCursor( wxCursor( wxCURSOR_PENCIL ) );
 169     test2 = new wxButton( test, -1, "Hallo", wxPoint(10,10) );
 170     test2->SetCursor( wxCursor( wxCURSOR_NO_ENTRY ) );
 171
 172     SetBackgroundColour( "WHEAT" );
 173
 174     SetCursor( wxCursor( wxCURSOR_IBEAM ) );
 175 }
 176
 177 MyCanvas::~MyCanvas()
 178 {
 179 }
 180
 181 void MyCanvas::OnMouseDown( wxMouseEvent &event )
 182 {
 183     if (event.LeftDown())
 184     {
 185         wxPoint pt( event.GetPosition() );
 186         int x,y;
 187         CalcUnscrolledPosition( pt.x, pt.y, &x, &y );
 188         wxLogMessage( "Mouse down event at: %d %d, scrolled: %d %d", pt.x, pt.y, x, y );
 189     }
 190
 191     if (event.LeftIsDown() &&
 192         event.LeftDown())
 193     {
 194         wxLogMessage( "Error: both LeftDown() and LeftIsDown() are TRUE!" );
 195     }
 196 }
 197
 198 void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
 199 {
 200     wxPaintDC dc( this );
 201     PrepareDC( dc );
 202
 203     dc.DrawText( "Press mouse button to test calculations!", 160, 50 );
 204
 205     dc.DrawText( "Some text", 140, 140 );
 206
 207     dc.DrawRectangle( 100, 160, 200, 200 );
 208 }
 209
 210 void MyCanvas::OnQueryPosition( wxCommandEvent &WXUNUSED(event) )
 211 {
 212     wxPoint pt( m_button->GetPosition() );
 213     wxLogMessage( "Position of ""Query position"" is %d %d", pt.x, pt.y );
 214     pt = ClientToScreen( pt );
 215     wxLogMessage( "Position of ""Query position"" on screen is %d %d", pt.x, pt.y );
 216 }
 217
 218 void MyCanvas::OnAddButton( wxCommandEvent &WXUNUSED(event) )
 219 {
 220     wxLogMessage( "Inserting button at position 10,70..." );
 221     wxButton *button = new wxButton( this, ID_NEWBUTTON, "new button", wxPoint(10,70), wxSize(80,25) );
 222     wxPoint pt( button->GetPosition() );
 223     wxLogMessage( "-> Position after inserting %d %d", pt.x, pt.y );
 224 }
 225
 226 void MyCanvas::OnDeleteButton( wxCommandEvent &event )
 227 {
 228     wxLogMessage( "Deleting button inserted with ""Add button""..." );
 229     wxWindow *win = FindWindow( ID_NEWBUTTON );
 230     if (win)
 231        win->Destroy();
 232     else
 233        wxLogMessage( "-> No window with id = ID_NEWBUTTON found." );
 234 }
 235
 236 void MyCanvas::OnMoveButton( wxCommandEvent &event )
 237 {
 238     wxLogMessage( "Moving button 10 pixels downward.." );
 239     wxWindow *win = FindWindow( event.GetId() );
 240     wxPoint pt( win->GetPosition() );
 241     wxLogMessage( "-> Position before move is %d %d", pt.x, pt.y );
 242     win->Move( -1, pt.y + 10 );
 243     pt = win->GetPosition();
 244     wxLogMessage( "-> Position after move is %d %d", pt.x, pt.y );
 245 }
 246
 247 void MyCanvas::OnScrollWin( wxCommandEvent &WXUNUSED(event) )
 248 {
 249     wxLogMessage( "Scrolling 2 units up.\nThe white square and the controls should move equally!" );
 250     int x,y;
 251     ViewStart( &x, &y );
 252     Scroll( -1, y+2 );
 253 }
 254
 255 void MyCanvas::OnScroll( wxScrollWinEvent &event )
 256 {
 257     if (( event.GetEventType() == wxEVT_SCROLLWIN_THUMBRELEASE ))
 258     {
 259         wxLogMessage( "Thumb released; position: %u", event.GetPosition() );
 260     }
 261     event.Skip();
 262 }
 263
 264 // MyFrame
 265
 266 const int ID_QUIT  = 108;
 267 const int ID_ABOUT = 109;
 268
 269 IMPLEMENT_DYNAMIC_CLASS( MyFrame, wxFrame )
 270
 271 BEGIN_EVENT_TABLE(MyFrame,wxFrame)
 272   EVT_MENU    (ID_ABOUT, MyFrame::OnAbout)
 273   EVT_MENU    (ID_QUIT,  MyFrame::OnQuit)
 274 END_EVENT_TABLE()
 275
 276 MyFrame::MyFrame()
 277        : wxFrame( (wxFrame *)NULL, -1, "wxScrolledWindow sample",
 278                   wxPoint(20,20), wxSize(470,500) )
 279 {
 280     wxMenu *file_menu = new wxMenu();
 281     file_menu->Append( ID_ABOUT, "&About..");
 282     file_menu->Append( ID_QUIT, "E&xit\tAlt-X");
 283
 284     wxMenuBar *menu_bar = new wxMenuBar();
 285     menu_bar->Append(file_menu, "&File");
 286
 287     SetMenuBar( menu_bar );
 288
 289     CreateStatusBar(2);
 290     int widths[] = { -1, 100 };
 291     SetStatusWidths( 2, widths );
 292
 293     m_canvas = new MyCanvas( this, -1, wxPoint(0,0), wxSize(100,100) );
 294     m_canvas->SetScrollbars( 10, 10, 50, 100 );
 295
 296     m_log = new wxTextCtrl( this, -1, "This is the log window.\n", wxPoint(0,0), wxSize(100,100), wxTE_MULTILINE );
 297     wxLog *old_log = wxLog::SetActiveTarget( new wxLogTextCtrl( m_log ) );
 298     delete old_log;
 299
 300     wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
 301
 302     topsizer->Add( m_canvas, 1, wxEXPAND );
 303     topsizer->Add( m_log, 0, wxEXPAND );
 304
 305     SetAutoLayout( TRUE );
 306     SetSizer( topsizer );
 307 }
 308
 309 void MyFrame::OnQuit( wxCommandEvent &WXUNUSED(event) )
 310 {
 311   Close( TRUE );
 312 }
 313
 314 void MyFrame::OnAbout( wxCommandEvent &WXUNUSED(event) )
 315 {
 316   (void)wxMessageBox( "wxScroll demo\n"
 317                       "Robert Roebling (c) 1998",
 318                       "About wxScroll Demo", wxICON_INFORMATION | wxOK );
 319 }
 320
 321 //-----------------------------------------------------------------------------
 322 // MyApp
 323 //-----------------------------------------------------------------------------
 324
 325 bool MyApp::OnInit()
 326 {
 327   wxFrame *frame = new MyFrame();
 328   frame->Show( TRUE );
 329
 330   return TRUE;
 331 }
 332