samples/layout/layout.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        layout.cpp
   3 // Purpose:     Layout 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 #if !wxUSE_CONSTRAINTS
  24 #error You must set wxUSE_CONSTRAINTS to 1 in setup.h!
  25 #endif
  26
  27 #include <ctype.h>
  28
  29 #include "wx/sizer.h"
  30 #include "wx/statline.h"
  31 #include "wx/notebook.h"
  32
  33 #include "layout.h"
  34
  35 // Declare two frames
  36 MyFrame   *frame = (MyFrame *) NULL;
  37 wxMenuBar *menu_bar = (wxMenuBar *) NULL;
  38
  39 IMPLEMENT_APP(MyApp)
  40
  41 MyApp::MyApp()
  42 {
  43 }
  44
  45 bool MyApp::OnInit()
  46 {
  47   // Create the main frame window
  48   frame = new MyFrame((MyFrame *) NULL, (char *) "wxWindows Layout Demo", 0, 0, 550, 500);
  49
  50   frame->SetAutoLayout(TRUE);
  51
  52   // Give it a status line
  53   frame->CreateStatusBar(2);
  54
  55   // Make a menubar
  56   wxMenu *file_menu = new wxMenu;
  57
  58   file_menu->Append(LAYOUT_LOAD_FILE, "&Load file",      "Load a text file");
  59   file_menu->Append(LAYOUT_TEST_SIZER, "&Test sizers",      "Test sizer");
  60   file_menu->Append(LAYOUT_TEST_NB, "&Test notebook sizers",      "Test notebook sizer");
  61
  62   file_menu->AppendSeparator();
  63   file_menu->Append(LAYOUT_QUIT, "E&xit",                "Quit program");
  64
  65   wxMenu *help_menu = new wxMenu;
  66   help_menu->Append(LAYOUT_ABOUT, "&About",              "About layout demo");
  67
  68   menu_bar = new wxMenuBar;
  69
  70   menu_bar->Append(file_menu, "&File");
  71   menu_bar->Append(help_menu, "&Help");
  72
  73   // Associate the menu bar with the frame
  74   frame->SetMenuBar(menu_bar);
  75
  76   // Make a panel
  77   frame->panel = new wxPanel(frame, 0, 0, 1000, 500, wxTAB_TRAVERSAL);
  78   frame->panel->SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
  79 //  frame->panel->SetAutoLayout(TRUE);
  80
  81   // Create some panel items
  82   wxButton *btn1 = new wxButton(frame->panel, -1, "A button (1)") ;
  83
  84   wxLayoutConstraints *b1 = new wxLayoutConstraints;
  85   b1->centreX.SameAs    (frame->panel, wxCentreX);
  86   b1->top.SameAs        (frame->panel, wxTop, 5);
  87   b1->width.PercentOf   (frame->panel, wxWidth, 80);
  88   b1->height.PercentOf  (frame->panel, wxHeight, 10);
  89   btn1->SetConstraints(b1);
  90
  91   wxListBox *list = new wxListBox(frame->panel, -1,
  92                                   wxPoint(-1, -1), wxSize(200, 100));
  93   list->Append("Apple");
  94   list->Append("Pear");
  95   list->Append("Orange");
  96   list->Append("Banana");
  97   list->Append("Fruit");
  98
  99   wxLayoutConstraints *b2 = new wxLayoutConstraints;
 100   b2->top.Below         (btn1, 5);
 101   b2->left.SameAs       (frame->panel, wxLeft, 5);
 102   b2->width.PercentOf   (frame->panel, wxWidth, 40);
 103   b2->bottom.SameAs     (frame->panel, wxBottom, 5);
 104   list->SetConstraints(b2);
 105
 106   wxTextCtrl *mtext = new wxTextCtrl(frame->panel, -1, "Some text",
 107                         wxPoint(-1, -1), wxSize(150, 100));
 108
 109   wxLayoutConstraints *b3 = new wxLayoutConstraints;
 110   b3->top.Below         (btn1, 5);
 111   b3->left.RightOf      (list, 5);
 112   b3->right.SameAs      (frame->panel, wxRight, 5);
 113   b3->bottom.SameAs     (frame->panel, wxBottom, 5);
 114   mtext->SetConstraints(b3);
 115
 116   frame->canvas = new MyWindow(frame, 0, 0, 400, 400, wxRETAINED);
 117
 118   // Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction
 119 //  canvas->SetScrollbars(20, 20, 50, 50, 4, 4);
 120
 121   // Make a text window
 122   frame->text_window = new MyTextWindow(frame, 0, 250, 400, 250);
 123
 124   // Set constraints for panel subwindow
 125   wxLayoutConstraints *c1 = new wxLayoutConstraints;
 126
 127   c1->left.SameAs       (frame, wxLeft);
 128   c1->top.SameAs        (frame, wxTop);
 129   c1->right.PercentOf   (frame, wxWidth, 50);
 130   c1->height.PercentOf  (frame, wxHeight, 50);
 131
 132   frame->panel->SetConstraints(c1);
 133
 134   // Set constraints for canvas subwindow
 135   wxLayoutConstraints *c2 = new wxLayoutConstraints;
 136
 137   c2->left.SameAs       (frame->panel, wxRight);
 138   c2->top.SameAs        (frame, wxTop);
 139   c2->right.SameAs      (frame, wxRight);
 140   c2->height.PercentOf  (frame, wxHeight, 50);
 141
 142   frame->canvas->SetConstraints(c2);
 143
 144   // Set constraints for text subwindow
 145   wxLayoutConstraints *c3 = new wxLayoutConstraints;
 146   c3->left.SameAs       (frame, wxLeft);
 147   c3->top.Below         (frame->panel);
 148   c3->right.SameAs      (frame, wxRight);
 149   c3->bottom.SameAs     (frame, wxBottom);
 150
 151   frame->text_window->SetConstraints(c3);
 152
 153   frame->Show(TRUE);
 154
 155   frame->SetStatusText("wxWindows layout demo");
 156
 157   SetTopWindow(frame);
 158   return TRUE;
 159 }
 160
 161 //-----------------------------------------------------------------
 162 //  MyFrame
 163 //-----------------------------------------------------------------
 164
 165 // Define my frame constructor
 166 MyFrame::MyFrame(wxFrame *frame, char *title, int x, int y, int w, int h):
 167   wxFrame(frame, -1, title, wxPoint(x, y), wxSize(w, h))
 168 {
 169   panel = (wxPanel *) NULL;
 170   text_window = (MyTextWindow *) NULL;
 171   canvas = (MyWindow *) NULL;
 172 }
 173
 174 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 175   EVT_MENU(LAYOUT_LOAD_FILE, MyFrame::LoadFile)
 176   EVT_MENU(LAYOUT_QUIT, MyFrame::Quit)
 177   EVT_MENU(LAYOUT_TEST_SIZER, MyFrame::TestSizers)
 178   EVT_MENU(LAYOUT_TEST_NB, MyFrame::TestNotebookSizers)
 179   EVT_MENU(LAYOUT_ABOUT, MyFrame::About)
 180   EVT_SIZE(MyFrame::OnSize)
 181 END_EVENT_TABLE()
 182
 183 void MyFrame::LoadFile(wxCommandEvent& WXUNUSED(event) )
 184 {
 185       wxString s = wxFileSelector( _T("Load text file"), (const wxChar *) NULL,
 186                                    (const wxChar *) NULL, (const wxChar *) NULL, _T("*.txt") );
 187       if (s != "")
 188       {
 189 #ifdef __WXMSW__
 190         frame->text_window->LoadFile(s);
 191 #endif
 192       }
 193 }
 194
 195 void MyFrame::Quit(wxCommandEvent& WXUNUSED(event) )
 196 {
 197     this->Close(TRUE);
 198 }
 199
 200 void MyFrame::TestSizers(wxCommandEvent& WXUNUSED(event) )
 201 {
 202     MySizerFrame *newFrame = new MySizerFrame((MyFrame *) NULL, "Sizer Test Frame", 50, 50 );
 203     newFrame->Show(TRUE);
 204 }
 205
 206 void MyFrame::TestNotebookSizers(wxCommandEvent& WXUNUSED(event) )
 207 {
 208     wxDialog dialog( this, -1, "Notebook Sizer Test Dialog"  );
 209
 210     // Begin with first hierarchy: a notebook at the top and
 211     // and OK button at the bottom.
 212
 213     wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
 214
 215     wxNotebook *notebook = new wxNotebook( &dialog, -1 );
 216     wxNotebookSizer *nbs = new wxNotebookSizer( notebook );
 217     topsizer->Add( nbs, 1, wxGROW );
 218
 219     wxButton *button = new wxButton( &dialog, wxID_OK, "OK" );
 220     topsizer->Add( button, 0, wxALIGN_RIGHT | wxALL, 10 );
 221
 222     // First page: one big text ctrl
 223     wxTextCtrl *multi = new wxTextCtrl( notebook, -1, "TextCtrl.", wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE );
 224     notebook->AddPage( multi, "Page One" );
 225
 226     // Second page: a text ctrl and a button
 227     wxPanel *panel = new wxPanel( notebook, -1 );
 228     notebook->AddPage( panel, "Page Two" );
 229
 230     wxBoxSizer *panelsizer = new wxBoxSizer( wxVERTICAL );
 231
 232     wxTextCtrl *text = new wxTextCtrl( panel, -1, "TextLine 1.", wxDefaultPosition, wxSize(250,-1) );
 233     panelsizer->Add( text, 0, wxGROW|wxALL, 30 );
 234     text = new wxTextCtrl( panel, -1, "TextLine 2.", wxDefaultPosition, wxSize(250,-1) );
 235     panelsizer->Add( text, 0, wxGROW|wxALL, 30 );
 236     wxButton *button2 = new wxButton( panel, -1, "Hallo" );
 237     panelsizer->Add( button2, 0, wxALIGN_RIGHT | wxLEFT|wxRIGHT|wxBOTTOM, 30 );
 238
 239     panel->SetAutoLayout( TRUE );
 240     panel->SetSizer( panelsizer );
 241
 242     // Tell dialog to use sizer
 243
 244     dialog.SetAutoLayout( TRUE );
 245     topsizer->Fit( &dialog );
 246     topsizer->SetSizeHints( &dialog );
 247     dialog.SetSizer( topsizer );
 248
 249     dialog.ShowModal();
 250 }
 251
 252
 253 void MyFrame::About(wxCommandEvent& WXUNUSED(event) )
 254 {
 255     (void)wxMessageBox("wxWindows GUI library layout demo\n",
 256             "About Layout Demo", wxOK|wxCENTRE);
 257 }
 258
 259 // Size the subwindows when the frame is resized
 260 void MyFrame::OnSize(wxSizeEvent& WXUNUSED(event) )
 261 {
 262     Layout();
 263 }
 264
 265 void MyFrame::Draw(wxDC& dc, bool WXUNUSED(draw_bitmaps) )
 266 {
 267   dc.SetPen(* wxGREEN_PEN);
 268   dc.DrawLine(0, 0, 200, 200);
 269   dc.DrawLine(200, 0, 0, 200);
 270
 271   dc.SetBrush(* wxCYAN_BRUSH);
 272   dc.SetPen(* wxRED_PEN);
 273
 274   dc.DrawRectangle(100, 100, 100, 50);
 275   dc.DrawRoundedRectangle(150, 150, 100, 50, 20);
 276
 277   dc.DrawEllipse(250, 250, 100, 50);
 278   dc.DrawSpline(50, 200, 50, 100, 200, 10);
 279   dc.DrawLine(50, 230, 200, 230);
 280
 281   dc.SetPen(* wxBLACK_PEN);
 282   dc.DrawArc(50, 300, 100, 250, 100, 300 );
 283 }
 284
 285 //-----------------------------------------------------------------
 286 //  MyWindow
 287 //-----------------------------------------------------------------
 288
 289 BEGIN_EVENT_TABLE(MyWindow, wxWindow)
 290     EVT_PAINT(MyWindow::OnPaint)
 291 END_EVENT_TABLE()
 292
 293 // Define a constructor for my canvas
 294 MyWindow::MyWindow(wxFrame *frame, int x, int y, int w, int h, long style):
 295  wxWindow(frame, -1, wxPoint(x, y), wxSize(w, h), style)
 296 {
 297 }
 298
 299 MyWindow::~MyWindow()
 300 {
 301 }
 302
 303 // Define the repainting behaviour
 304 void MyWindow::OnPaint(wxPaintEvent& WXUNUSED(event) )
 305 {
 306   wxPaintDC dc(this);
 307   frame->Draw(dc,TRUE);
 308 }
 309
 310 //-----------------------------------------------------------------
 311 //  MySizerFrame
 312 //-----------------------------------------------------------------
 313
 314 MySizerFrame::MySizerFrame(wxFrame *frame, char *title, int x, int y ):
 315   wxFrame(frame, -1, title, wxPoint(x, y) )
 316 {
 317   // we want to get a dialog that is stretchable because it
 318   // has a text ctrl in the middle. at the bottom, we have
 319   // two buttons which.
 320
 321   wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
 322
 323   // 1) top: create wxStaticText with minimum size equal to its default size
 324   topsizer->Add(
 325     new wxStaticText( this, -1, "An explanation (wxALIGN_RIGHT)." ),
 326     0,                         // make vertically unstretchable
 327     wxALIGN_RIGHT |            // right align text
 328     wxTOP | wxLEFT | wxRIGHT,  // make border all around except wxBOTTOM
 329     5 );                      // set border width to 5
 330
 331   // 2) top: create wxTextCtrl with minimum size (100x60)
 332   topsizer->Add(
 333     new wxTextCtrl( this, -1, "My text (wxEXPAND).", wxDefaultPosition, wxSize(100,60), wxTE_MULTILINE),
 334     1,            // make vertically stretchable
 335     wxEXPAND |    // make horizontally stretchable
 336     wxALL,        //   and make border all around
 337     5 );         // set border width to 5
 338
 339   // 2.5) Gratuitous test of wxStaticBoxSizers
 340   wxBoxSizer *statsizer = new wxStaticBoxSizer(
 341     new wxStaticBox(this, -1, "A wxStaticBoxSizer"),
 342     wxVERTICAL );
 343   statsizer->Add(
 344     new wxStaticText(this, -1, "And some TEXT inside it"),
 345     0,
 346     wxCENTER |
 347     wxALL,
 348     30);
 349   topsizer->Add(statsizer, 1, wxEXPAND | wxALL, 10);
 350
 351
 352   // 3) middle: create wxStaticLine with minimum size (3x3)
 353   topsizer->Add(
 354      new wxStaticLine( this, -1, wxDefaultPosition, wxSize(3,3), wxHORIZONTAL),
 355      0,           // make vertically unstretchable
 356      wxEXPAND |   // make horizontally stretchable
 357      wxALL,       //   and make border all around
 358      5 );         // set border width to 5
 359
 360
 361   // 4) bottom: create two centred wxButtons
 362   wxBoxSizer *button_box = new wxBoxSizer( wxHORIZONTAL );
 363   button_box->Add(
 364      new wxButton( this, -1, "Two buttons in a box" ),
 365      0,           // make horizontally unstretchable
 366      wxALL,       // make border all around
 367      7 );         // set border width to 7
 368   button_box->Add(
 369      new wxButton( this, -1, "(wxCENTER)" ),
 370      0,           // make horizontally unstretchable
 371      wxALL,       // make border all around
 372      7 );         // set border width to 7
 373
 374   topsizer->Add(
 375      button_box,
 376      0,          // make vertically unstretchable
 377      wxCENTER ); // no border and centre horizontally
 378
 379   SetAutoLayout( TRUE );
 380
 381   // set frame to minimum size
 382   topsizer->Fit( this );
 383
 384   // don't allow frame to get smaller than what the sizers tell ye
 385   topsizer->SetSizeHints( this );
 386
 387   SetSizer( topsizer );
 388 }
 389
 390
 391