samples/html/printing/printing.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        printimg.cpp
   3 // Purpose:     wxHtmlEasyPrinting testing example
   4 /////////////////////////////////////////////////////////////////////////////
   5
   6
   7 // For compilers that support precompilation, includes "wx/wx.h".
   8 #include "wx/wxprec.h"
   9
  10 #ifdef __BORLANDC__
  11 #pragma hdrstop
  12 #endif
  13
  14 // for all others, include the necessary headers (this file is usually all you
  15 // need because it includes almost all "standard" wxWindows headers
  16 #ifndef WX_PRECOMP
  17 #include <wx/wx.h>
  18 #endif
  19
  20 #include <wx/image.h>
  21 #include <wx/html/htmlwin.h>
  22
  23 #include <wx/html/htmprint.h>
  24
  25
  26 // ----------------------------------------------------------------------------
  27 // private classes
  28 // ----------------------------------------------------------------------------
  29
  30 // Define a new application type, each program should derive a class from wxApp
  31 class MyApp : public wxApp
  32 {
  33     public:
  34         // override base class virtuals
  35         // ----------------------------
  36
  37         // this one is called on application startup and is a good place for the app
  38         // initialization (doing it here and not in the ctor allows to have an error
  39         // return: if OnInit() returns false, the application terminates)
  40
  41         virtual bool OnInit();
  42 };
  43
  44 // Define a new frame type: this is going to be our main frame
  45 class MyFrame : public wxFrame
  46 {
  47     public:
  48         // ctor(s)
  49
  50         MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
  51
  52         // event handlers (these functions should _not_ be virtual)
  53         void OnQuit(wxCommandEvent& event);
  54         void OnAbout(wxCommandEvent& event);
  55
  56         void OnPrintSetup(wxCommandEvent& event);
  57         void OnPageSetup(wxCommandEvent& event);
  58         void OnPrint(wxCommandEvent& event);
  59         void OnPreview(wxCommandEvent& event);
  60         void OnOpen(wxCommandEvent& event);
  61
  62
  63     private:
  64         wxHtmlWindow *m_Html;
  65         wxHtmlEasyPrinting *m_Prn;
  66         wxString m_Name;
  67         // any class wishing to process wxWindows events must use this macro
  68         DECLARE_EVENT_TABLE()
  69 };
  70
  71 // ----------------------------------------------------------------------------
  72 // constants
  73 // ----------------------------------------------------------------------------
  74
  75 // IDs for the controls and the menu commands
  76 enum
  77 {
  78     // menu items
  79     Minimal_Quit = 1,
  80     Minimal_About,
  81     Minimal_Print,
  82     Minimal_Preview,
  83     Minimal_PageSetup,
  84     Minimal_PrintSetup,
  85     Minimal_Open
  86
  87 };
  88
  89 // ----------------------------------------------------------------------------
  90 // event tables and other macros for wxWindows
  91 // ----------------------------------------------------------------------------
  92
  93 // the event tables connect the wxWindows events with the functions (event
  94 // handlers) which process them. It can be also done at run-time, but for the
  95 // simple menu events like this the static method is much simpler.
  96 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
  97     EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
  98     EVT_MENU(Minimal_About, MyFrame::OnAbout)
  99     EVT_MENU(Minimal_Print, MyFrame::OnPrint)
 100     EVT_MENU(Minimal_Preview, MyFrame::OnPreview)
 101     EVT_MENU(Minimal_PageSetup, MyFrame::OnPageSetup)
 102     EVT_MENU(Minimal_PrintSetup, MyFrame::OnPrintSetup)
 103     EVT_MENU(Minimal_Open, MyFrame::OnOpen)
 104 END_EVENT_TABLE()
 105
 106 // Create a new application object: this macro will allow wxWindows to create
 107 // the application object during program execution (it's better than using a
 108 // static object for many reasons) and also declares the accessor function
 109 // wxGetApp() which will return the reference of the right type (i.e. MyApp and
 110 // not wxApp)
 111 IMPLEMENT_APP(MyApp)
 112
 113 // ============================================================================
 114 // implementation
 115 // ============================================================================
 116
 117 // ----------------------------------------------------------------------------
 118 // the application class
 119 // ----------------------------------------------------------------------------
 120 // `Main program' equivalent: the program execution "starts" here
 121 bool MyApp::OnInit()
 122 {
 123 #if wxUSE_LIBPNG
 124     wxImage::AddHandler(new wxPNGHandler);
 125 #endif
 126 #if wxUSE_LIBJPEG
 127     wxImage::AddHandler(new wxJPEGHandler);
 128 #endif
 129 #if wxUSE_GIF
 130     wxImage::AddHandler(new wxGIFHandler);
 131 #endif
 132
 133     MyFrame *frame = new MyFrame("Printing test",
 134                                  wxPoint(150, 50), wxSize(640, 480));
 135
 136     // Show it and tell the application that it's our main window
 137     // @@@ what does it do exactly, in fact? is it necessary here?
 138     frame->Show(TRUE);
 139     SetTopWindow(frame);
 140
 141
 142     // success: wxApp::OnRun() will be called which will enter the main message
 143     // loop and the application will run. If we returned FALSE here, the
 144     // application would exit immediately.
 145     return TRUE;
 146 }
 147
 148 // ----------------------------------------------------------------------------
 149 // main frame
 150 // ----------------------------------------------------------------------------
 151
 152
 153 // frame constructor
 154 MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
 155         : wxFrame((wxFrame *)NULL, -1, title, pos, size)
 156 {
 157     // create a menu bar
 158     wxMenu *menuFile = new wxMenu;
 159     menuFile->Append(Minimal_Open, "Open...\tCtrl-O");
 160     menuFile->AppendSeparator();
 161     menuFile->Append(Minimal_PageSetup, "Page Setup");
 162     menuFile->Append(Minimal_PrintSetup, "Printer Setup");
 163     menuFile->Append(Minimal_Print, "Print...");
 164     menuFile->Append(Minimal_Preview, "Preview...");
 165     menuFile->AppendSeparator();
 166     menuFile->Append(Minimal_About, "&About");
 167     menuFile->AppendSeparator();
 168     menuFile->Append(Minimal_Quit, "&Exit");
 169
 170     // now append the freshly created menu to the menu bar...
 171     wxMenuBar *menuBar = new wxMenuBar;
 172     menuBar->Append(menuFile, "&File");
 173
 174     // ... and attach this menu bar to the frame
 175     SetMenuBar(menuBar);
 176
 177     CreateStatusBar(1);
 178
 179     m_Html = new wxHtmlWindow(this);
 180     m_Html -> SetRelatedFrame(this, "HTML : %s");
 181     m_Html -> SetRelatedStatusBar(0);
 182     m_Name = "test.htm";
 183     m_Html -> LoadPage(m_Name);
 184
 185     m_Prn = new wxHtmlEasyPrinting("Easy Printing Demo", this);
 186     m_Prn -> SetHeader(m_Name + "(@PAGENUM@/@PAGESCNT@)<hr>", wxPAGE_ALL);
 187 }
 188
 189
 190 // event handlers
 191
 192 void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 193 {
 194     delete m_Prn;
 195     // TRUE is to force the frame to close
 196     Close(TRUE);
 197 }
 198
 199
 200 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 201 {
 202     wxMessageBox("HTML printing sample\n\n(c) Vaclav Slavik, 1999");
 203 }
 204
 205
 206 void MyFrame::OnPrintSetup(wxCommandEvent& WXUNUSED(event))
 207 {
 208     m_Prn -> PrinterSetup();
 209 }
 210
 211
 212 void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
 213 {
 214     m_Prn -> PageSetup();
 215 }
 216
 217
 218 void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
 219 {
 220     m_Prn -> PrintFile(m_Name);
 221 }
 222
 223
 224 void MyFrame::OnPreview(wxCommandEvent& WXUNUSED(event))
 225 {
 226     m_Prn -> PreviewFile(m_Name);
 227 }
 228
 229
 230 void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
 231 {
 232     wxFileDialog dialog(this, "Open HTML page", "", "", "*.htm", 0);
 233
 234     if (dialog.ShowModal() == wxID_OK)
 235     {
 236         m_Name = dialog.GetPath();
 237         m_Html -> LoadPage(m_Name);
 238         m_Prn -> SetHeader(m_Name + "(@PAGENUM@/@PAGESCNT@)<hr>", wxPAGE_ALL);
 239     }
 240 }
 241
 242