samples/svg/svgtest.cpp

   1 // biol75@york.ac.uk (Chris Elliott) March 2000
   2
   3 #ifdef __BIDE__
   4 #define _NO_VCL
   5 #include "condefs.h"
   6 USERC("svg.rc");
   7 //---------------------------------------------------------------------------
   8 #define WinMain WinMain
   9 #endif
  10 /////////////////////////////////////////////////////////////////////////////
  11 // Name:        svgtest.cpp
  12 // Purpose:     SVG sample
  13 // Author:      Chris Elliott
  14 // Modified by:
  15 // RCS-ID:      $Id$
  16 // Licence:     wxWindows license
  17 /////////////////////////////////////////////////////////////////////////////
  18
  19 // ===========================================================================
  20 // declarations
  21 // ===========================================================================
  22
  23 // ---------------------------------------------------------------------------
  24 // headers
  25 // ---------------------------------------------------------------------------
  26
  27 // For compilers that support precompilation, includes "wx/wx.h".
  28 #include "wx/wxprec.h"
  29
  30 #ifdef __BORLANDC__
  31 #pragma hdrstop
  32 #endif
  33
  34 #ifndef WX_PRECOMP
  35 #include "wx/wx.h"
  36 #include "wx/mdi.h"
  37 #endif
  38
  39 #include <wx/toolbar.h>
  40 #include <wx/svg/dcsvg.h>
  41
  42 #include "mondrian.xpm"
  43
  44 #include "bitmaps/new.xpm"
  45 #include "bitmaps/save.xpm"
  46 #include "bitmaps/help.xpm"
  47 #include "SVGlogo24.xpm"
  48
  49 class MyChild;
  50
  51 // Define a new application
  52 class MyApp : public wxApp
  53 {
  54     public:
  55         bool OnInit();
  56 };
  57
  58 // Define a new frame
  59 class MyFrame : public wxMDIParentFrame
  60 {
  61     public:
  62         int nWinCreated;
  63
  64         wxList m_children;
  65
  66         MyFrame(wxWindow *parent, const wxWindowID id, const wxString& title,
  67             const wxPoint& pos, const wxSize& size, const long style);
  68
  69         void InitToolBar(wxToolBar* toolBar);
  70
  71         void OnSize(wxSizeEvent& event);
  72         void OnAbout(wxCommandEvent& event);
  73         void OnNewWindow(wxCommandEvent& event);
  74         void OnQuit(wxCommandEvent& event);
  75         void OnClose(wxCloseEvent& event);
  76         void FileSavePicture (wxCommandEvent & WXUNUSED(event) ) ;
  77
  78         DECLARE_EVENT_TABLE()
  79 };
  80
  81
  82 class MyCanvas : public wxScrolledWindow
  83 {
  84     public:
  85         int m_index ;
  86
  87         MyChild * m_child ;
  88         MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size);
  89         virtual void OnDraw(wxDC& dc);
  90
  91         DECLARE_EVENT_TABLE()
  92 };
  93
  94 class MyChild: public wxMDIChildFrame
  95 {
  96     public:
  97         MyCanvas *m_canvas;
  98         MyFrame  *m_frame ;
  99
 100         //////////////////// Methods
 101
 102         MyChild(wxMDIParentFrame *parent, const wxString& title, const wxPoint& pos, const wxSize& size, const long style);
 103         ~MyChild();
 104
 105         void OnActivate(wxActivateEvent& event);
 106         void OnQuit(wxCommandEvent& event);
 107         void OnClose(wxCloseEvent& event);
 108         bool OnSave(wxString filename) ;
 109
 110         DECLARE_EVENT_TABLE()
 111 };
 112
 113 // menu items ids
 114 enum
 115 {
 116     MDI_QUIT = 100,
 117     MDI_NEW_WINDOW,
 118     MDI_SAVE,
 119     MDI_REFRESH,
 120     MDI_CHILD_QUIT,
 121     MDI_ABOUT
 122 };
 123
 124
 125 IMPLEMENT_APP(MyApp)
 126
 127 // ---------------------------------------------------------------------------
 128 // global variables
 129 // ---------------------------------------------------------------------------
 130
 131 MyFrame *frame = (MyFrame *) NULL;
 132
 133 // ---------------------------------------------------------------------------
 134 // event tables
 135 // ---------------------------------------------------------------------------
 136
 137 BEGIN_EVENT_TABLE(MyFrame, wxMDIParentFrame)
 138 EVT_MENU(MDI_ABOUT, MyFrame::OnAbout)
 139 EVT_MENU(MDI_NEW_WINDOW, MyFrame::OnNewWindow)
 140 EVT_MENU(MDI_QUIT, MyFrame::OnQuit)
 141 EVT_MENU (MDI_SAVE, MyFrame::FileSavePicture)
 142 EVT_CLOSE(MyFrame::OnClose)
 143
 144 EVT_SIZE(MyFrame::OnSize)
 145 END_EVENT_TABLE()
 146
 147 // ===========================================================================
 148 // implementation
 149 // ===========================================================================
 150
 151 // ---------------------------------------------------------------------------
 152 // MyApp
 153 // ---------------------------------------------------------------------------
 154
 155 // Initialise this in OnInit, not statically
 156 bool MyApp::OnInit()
 157 {
 158     // Create the main frame window
 159
 160     frame = new MyFrame((wxFrame *)NULL, -1, wxT("SVG Demo"),
 161         wxPoint(-1, -1), wxSize(500, 400),
 162         wxDEFAULT_FRAME_STYLE | wxHSCROLL | wxVSCROLL);
 163
 164
 165     // Make a menubar
 166     wxMenu *file_menu = new wxMenu;
 167
 168     file_menu->Append(MDI_NEW_WINDOW, wxT("&New test\tCtrl+N"));
 169     file_menu->Append(MDI_QUIT, wxT("&Exit\tAlt+X"));
 170
 171     wxMenu *help_menu = new wxMenu;
 172     help_menu->Append(MDI_ABOUT, wxT("&About"));
 173
 174     wxMenuBar *menu_bar = new wxMenuBar;
 175
 176     menu_bar->Append(file_menu, wxT("&File"));
 177     menu_bar->Append(help_menu, wxT("&Help"));
 178
 179     // Associate the menu bar with the frame
 180     frame->SetMenuBar(menu_bar);
 181
 182     frame->CreateStatusBar();
 183
 184     frame->Show(TRUE);
 185
 186     SetTopWindow(frame);
 187
 188     return TRUE;
 189 }
 190
 191
 192 // ---------------------------------------------------------------------------
 193 // MyFrame
 194 // ---------------------------------------------------------------------------
 195
 196 // Define my frame constructor
 197 MyFrame::MyFrame(wxWindow *parent, const wxWindowID id, const wxString& title,
 198     const wxPoint& pos, const wxSize& size, const long style)
 199         : wxMDIParentFrame(parent, id, title, pos, size, style)
 200 {
 201     nWinCreated = 0 ;
 202
 203     // Give it an icon
 204     SetIcon(wxICON(mondrian));
 205
 206     CreateToolBar(wxNO_BORDER | wxTB_FLAT | wxTB_HORIZONTAL);
 207     InitToolBar(GetToolBar());
 208
 209 }
 210
 211
 212 void MyFrame::OnClose(wxCloseEvent& event)
 213 {
 214     if ( !event.CanVeto() )
 215     {
 216         event.Skip();
 217         return ;
 218     }
 219     if ( m_children.GetCount () < 1 )
 220     {
 221         event.Skip();
 222         return ;
 223     }
 224     // now try the children
 225     wxNode * pNode = m_children.GetFirst ();
 226     wxNode * pNext ;
 227     MyChild * pChild ;
 228     while ( pNode )
 229     {
 230         pNext = pNode -> GetNext ();
 231         pChild = (MyChild*) pNode -> GetData ();
 232         if (pChild -> Close ())
 233         {
 234             delete pNode ;
 235         }
 236         else
 237         {
 238             event.Veto();
 239             return;
 240         }
 241         pNode = pNext ;
 242     }
 243     event.Skip();
 244 }
 245
 246
 247 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 248 {
 249     Close();
 250 }
 251
 252
 253 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
 254 {
 255     (void)wxMessageBox(wxT("wxWindows 2.0 SVG 1.0 Test\n")
 256         wxT("Author: Chris Elliott (c) 2002\n")
 257         wxT("Usage: svg.exe \nClick File | New to show tests\n\n"), wxT("About SVG Test"));
 258 }
 259
 260
 261 void MyFrame::OnNewWindow(wxCommandEvent& WXUNUSED(event) )
 262 {
 263     // Make another frame, containing a canvas
 264     MyChild *subframe ;
 265
 266     m_children.Append (new MyChild(frame, wxT("SVG Frame"),
 267         wxPoint(-1, -1), wxSize(-1, -1),
 268         wxDEFAULT_FRAME_STYLE )   ) ;
 269
 270     subframe = (MyChild *) m_children.GetLast() -> GetData ();
 271     wxString title;
 272     title.Printf(wxT("SVG Test Window %d"), nWinCreated );
 273     // counts number of children previously, even if now closed
 274     nWinCreated ++ ;
 275
 276     // Give it a title and icon
 277     subframe->SetTitle(title);
 278     subframe->SetIcon(wxICON(mondrian));
 279
 280     // Make a menubar
 281     wxMenu *file_menu = new wxMenu;
 282
 283     file_menu->Append(MDI_NEW_WINDOW, wxT("&Another test\tCtrl+N"));
 284     file_menu->Append(MDI_SAVE, wxT("&Save\tCtrl+S"), wxT("Save in SVG format"));
 285     file_menu->Append(MDI_CHILD_QUIT, wxT("&Close child\tCtrl+F4"));
 286     file_menu->Append(MDI_QUIT, wxT("&Exit\tAlt+X"));
 287
 288     wxMenu *help_menu = new wxMenu;
 289     help_menu->Append(MDI_ABOUT, wxT("&About"));
 290
 291     wxMenuBar *menu_bar = new wxMenuBar;
 292
 293     menu_bar->Append(file_menu, wxT("&File"));
 294     menu_bar->Append(help_menu, wxT("&Help"));
 295
 296     // Associate the menu bar with the frame
 297     subframe->SetMenuBar(menu_bar);
 298
 299     subframe->Show(TRUE);
 300 }
 301
 302
 303 void MyFrame::OnSize(wxSizeEvent& event)
 304 {
 305     int w, h;
 306     GetClientSize(&w, &h);
 307
 308     GetClientWindow()->SetSize(0, 0, w, h);
 309     event.Skip();
 310 }
 311
 312
 313 void MyFrame::InitToolBar(wxToolBar* toolBar)
 314 {
 315     const int maxBitmaps = 3 ;
 316     wxBitmap* bitmaps[maxBitmaps];
 317
 318     bitmaps[0] = new wxBitmap( new_xpm );
 319     bitmaps[1] = new wxBitmap( save_xpm );
 320     bitmaps[2] = new wxBitmap( help_xpm );
 321
 322     int width = 16;
 323     int currentX = 5;
 324
 325     toolBar->AddTool( MDI_NEW_WINDOW, *(bitmaps[0]), wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, wxT("New SVG test window"));
 326     currentX += width + 5;
 327     toolBar->AddTool( MDI_SAVE, *bitmaps[1], wxNullBitmap, FALSE, currentX, -1, (wxObject *) NULL, wxT("Save test in SVG format"));
 328     currentX += width + 5;
 329     toolBar->AddSeparator();
 330     toolBar->AddTool(MDI_ABOUT, *bitmaps[2], wxNullBitmap, TRUE, currentX, -1, (wxObject *) NULL, wxT("Help"));
 331
 332     toolBar->Realize();
 333
 334     int i;
 335     for (i = 0; i < maxBitmaps; i++)
 336         delete bitmaps[i];
 337 }
 338
 339
 340 void MyFrame::FileSavePicture (wxCommandEvent & WXUNUSED(event) )
 341 {
 342     MyChild * pChild = (MyChild *)GetActiveChild ();
 343     if (pChild == NULL)
 344     {
 345         return ;
 346     }
 347
 348     wxFileDialog dialog(this, wxT("Save Picture as"), wxEmptyString, pChild->GetTitle(),
 349         wxT("SVG vector picture files (*.svg)|*.svg"),
 350         wxSAVE|wxOVERWRITE_PROMPT);
 351
 352     if (dialog.ShowModal() == wxID_OK)
 353     {
 354         if (!pChild -> OnSave ( dialog.GetPath() ))
 355         {
 356             return ;
 357         }
 358     }
 359     return ;
 360 }
 361
 362
 363 // Note that MDI_NEW_WINDOW and MDI_ABOUT commands get passed
 364 // to the parent window for processing, so no need to
 365 // duplicate event handlers here.
 366 BEGIN_EVENT_TABLE(MyChild, wxMDIChildFrame)
 367     EVT_MENU(MDI_CHILD_QUIT, MyChild::OnQuit)
 368     EVT_CLOSE(MyChild::OnClose)
 369 END_EVENT_TABLE()
 370
 371 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
 372
 373 END_EVENT_TABLE()
 374
 375 // ---------------------------------------------------------------------------
 376 // MyCanvas
 377 // ---------------------------------------------------------------------------
 378
 379 // Define a constructor for my canvas
 380 MyCanvas::MyCanvas(wxWindow *parent, const wxPoint& pos, const wxSize& size)
 381 : wxScrolledWindow(parent, -1, pos, size,
 382 wxSUNKEN_BORDER|wxVSCROLL|wxHSCROLL)
 383 {
 384     m_child = (MyChild *) parent ;
 385     SetBackgroundColour(wxColour(_T("WHITE")));
 386     m_index = m_child->m_frame->nWinCreated % 7 ;
 387 }
 388
 389
 390 // Define the repainting behaviour
 391 void MyCanvas::OnDraw(wxDC& dc)
 392 {
 393     // vars to use ...
 394     wxString s ;
 395     wxPen wP ;
 396     wxBrush wB ;
 397     wxPoint points[6];
 398     wxColour wC;
 399     wxFont wF ;
 400
 401     dc.SetFont(*wxSWISS_FONT);
 402     dc.SetPen(*wxGREEN_PEN);
 403
 404
 405     switch (m_index)
 406     {
 407         default:
 408         case 0:
 409             // draw lines to make a cross
 410             dc.DrawLine(0, 0, 200, 200);
 411             dc.DrawLine(200, 0, 0, 200);
 412             // draw point colored line and spline
 413             wP = *wxCYAN_PEN ;
 414             wP.SetWidth(3);
 415             dc.SetPen(wP);
 416
 417             dc.DrawPoint (25,15) ;
 418             dc.DrawLine(50, 30, 200, 30);
 419             dc.DrawSpline(50, 200, 50, 100, 200, 10);
 420             s = wxT("Green Cross, Cyan Line and spline");
 421             break ;
 422
 423         case 1:
 424             // draw standard shapes
 425             dc.SetBrush(*wxCYAN_BRUSH);
 426             dc.SetPen(*wxRED_PEN);
 427             dc.DrawRectangle(10, 10, 100, 70);
 428             wB = wxBrush (_T("DARK ORCHID"), wxTRANSPARENT);
 429             dc.SetBrush (wB);
 430             dc.DrawRoundedRectangle(50, 50, 100, 70, 20);
 431             dc.SetBrush (wxBrush(_T("GOLDENROD"), wxSOLID) );
 432             dc.DrawEllipse(100, 100, 100, 50);
 433
 434             points[0].x = 100; points[0].y = 200;
 435             points[1].x = 70; points[1].y = 260;
 436             points[2].x = 160; points[2].y = 230;
 437             points[3].x = 40; points[3].y = 230;
 438             points[4].x = 130; points[4].y = 260;
 439             points[5].x = 100; points[5].y = 200;
 440
 441             dc.DrawPolygon(5, points);
 442             dc.DrawLines (6, points, 160);
 443             s = wxT("Blue rectangle, red edge, clear rounded rectangle, gold ellipse, gold and clear stars");
 444             break ;
 445
 446         case 2:
 447             // draw text in Arial or similar font
 448             dc.DrawLine(50,25,50,35);
 449             dc.DrawLine(45,30,55,30);
 450             dc.DrawText(wxT("This is a Swiss-style string"), 50, 30);
 451             wC = dc.GetTextForeground() ;
 452             dc.SetTextForeground (_T("FIREBRICK"));
 453
 454             // no effect in msw ??
 455             dc.SetTextBackground (_T("WHEAT"));
 456             dc.DrawText(wxT("This is a Red string"), 50, 200);
 457             dc.DrawRotatedText(wxT("This is a 45 deg string"), 50, 200, 45);
 458             dc.DrawRotatedText(wxT("This is a 90 deg string"), 50, 200, 90);
 459             wF = wxFont ( 18, wxROMAN, wxITALIC, wxBOLD, FALSE, wxT("Times New Roman"));
 460             dc.SetFont(wF);
 461             dc.SetTextForeground (wC) ;
 462             dc.DrawText(wxT("This is a Times-style string"), 50, 60);
 463             s = wxT("Swiss, Times text; red text, rotated and colored orange");
 464             break ;
 465
 466         case 3 :
 467             // four arcs start and end points, center
 468             dc.SetBrush(*wxGREEN_BRUSH);
 469             dc.DrawArc ( 200,300, 370,230, 300,300 );
 470             dc.SetBrush(*wxBLUE_BRUSH);
 471             dc.DrawArc ( 270-50, 270-86, 270-86, 270-50, 270,270 );
 472             dc.SetDeviceOrigin(-10,-10);
 473             dc.DrawArc ( 270-50, 270-86, 270-86, 270-50, 270,270 );
 474             dc.SetDeviceOrigin(0,0);
 475
 476             wP.SetColour (_T("CADET BLUE"));
 477             dc.SetPen(wP);
 478             dc.DrawArc ( 75,125, 110, 40, 75, 75 );
 479
 480             wP.SetColour (_T("SALMON"));
 481             dc.SetPen(wP);
 482             dc.SetBrush(*wxRED_BRUSH);
 483             //top left corner, width and height, start and end angle
 484                                  // 315 same center and x-radius as last pie-arc, half Y radius
 485             dc.DrawEllipticArc(25,50,100,50,180.0,45.0) ;
 486
 487             wP = *wxCYAN_PEN ;
 488             wP.SetWidth(3);
 489             dc.SetPen(wP);
 490                                  //wxTRANSPARENT));
 491             dc.SetBrush (wxBrush (_T("SALMON"),wxSOLID)) ;
 492             dc.DrawEllipticArc(300,  0,200,100, 0.0,145.0) ;
 493                                  //same end point
 494             dc.DrawEllipticArc(300, 50,200,100,90.0,145.0) ;
 495             dc.DrawEllipticArc(300,100,200,100,90.0,345.0) ;
 496
 497             s = wxT("This is an arc test page");
 498             break ;
 499
 500         case 4:
 501             dc.DrawCheckMark ( 30,30,25,25);
 502             dc.SetBrush (wxBrush (_T("SALMON"),wxTRANSPARENT));
 503             dc.DrawCheckMark ( 80,50,75,75);
 504             dc.DrawRectangle ( 80,50,75,75);
 505             s = wxT("Two check marks");
 506             break ;
 507
 508         case 5:
 509             wF = wxFont ( 18, wxROMAN, wxITALIC, wxBOLD, FALSE, wxT("Times New Roman"));
 510             dc.SetFont(wF);
 511             dc.DrawLine(0, 0, 200, 200);
 512             dc.DrawLine(200, 0, 0, 200);
 513             dc.DrawText(wxT("This is an 18pt string"), 50, 60);
 514
 515             // rescale and draw in blue
 516             wP = *wxCYAN_PEN ;
 517             dc.SetPen(wP);
 518             dc.SetUserScale (2.0,0.5);
 519             dc.SetDeviceOrigin(200,0);
 520             dc.DrawLine(0, 0, 200, 200);
 521             dc.DrawLine(200, 0, 0, 200);
 522             dc.DrawText(wxT("This is an 18pt string 2 x 0.5 UserScaled"), 50, 60);
 523             dc.SetUserScale (2.0,2.0);
 524             dc.SetDeviceOrigin(200,200);
 525             dc.DrawText(wxT("This is an 18pt string 2 x 2 UserScaled"), 50, 60);
 526
 527             wP = *wxRED_PEN ;
 528             dc.SetPen(wP);
 529             dc.SetUserScale (1.0,1.0);
 530             dc.SetDeviceOrigin(0,10);
 531             dc.SetMapMode (wxMM_METRIC) ; //svg ignores this
 532             dc.DrawLine(0, 0, 200, 200);
 533             dc.DrawLine(200, 0, 0, 200);
 534             dc.DrawText(wxT("This is an 18pt string in MapMode"), 50, 60);
 535             s = wxT("Scaling test page");
 536             break ;
 537
 538         case 6:
 539             dc.DrawIcon( wxIcon(mondrian_xpm), 10, 10 );
 540             dc.DrawBitmap ( wxBitmap(svgbitmap_xpm), 50,15);
 541             s = wxT("Icon and Bitmap ");
 542             break ;
 543
 544     }
 545     m_child->SetStatusText(s);
 546 }
 547
 548
 549
 550
 551 // ---------------------------------------------------------------------------
 552 // MyChild
 553 // ---------------------------------------------------------------------------
 554
 555 MyChild::MyChild(wxMDIParentFrame *parent, const wxString& title,
 556 const wxPoint& pos, const wxSize& size,
 557 const long style)
 558 : wxMDIChildFrame(parent, -1, title, pos, size, style)
 559 {
 560
 561     m_frame = (MyFrame *) parent ;
 562     CreateStatusBar();
 563     SetStatusText(title);
 564
 565     int w, h ;
 566     GetClientSize ( &w, &h );
 567     m_canvas = new MyCanvas(this, wxPoint(0, 0),  wxSize (w,h)  );
 568     // Give it scrollbars
 569     m_canvas->SetScrollbars(20, 20, 50, 50);
 570
 571 }
 572
 573
 574 MyChild::~MyChild()
 575 {
 576     m_frame->m_children.DeleteObject(this);
 577 }
 578
 579
 580 void MyChild::OnQuit(wxCommandEvent& WXUNUSED(event))
 581 {
 582     Close(TRUE);
 583 }
 584
 585
 586 bool MyChild::OnSave(wxString filename)
 587 {
 588     wxSVGFileDC svgDC (filename, 600, 650) ;
 589     m_canvas->OnDraw (svgDC);
 590     return svgDC.Ok();
 591 }
 592
 593
 594
 595 void MyChild::OnActivate(wxActivateEvent& event)
 596 {
 597     if ( event.GetActive() && m_canvas )
 598         m_canvas->SetFocus();
 599 }
 600
 601
 602 void MyChild::OnClose(wxCloseEvent& event)
 603 {
 604     event.Skip();
 605 }