wxWidgets/samples/html/printing/printing.cpp
2014-03-30 07:07:55 +00:00

286 lines
8.2 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: printing.cpp
// Purpose: wxHtml sample: wxHtmlEasyPrinting test
// Author: Vaclav Slavik
// Copyright: (c) 1998-2009 wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#include "wx/image.h"
#include "wx/html/htmlwin.h"
#include "wx/html/htmprint.h"
#ifndef wxHAS_IMAGES_IN_RESOURCES
#include "../../sample.xpm"
#endif
// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------
// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------
// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit() wxOVERRIDE;
};
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor and dtor
MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
virtual ~MyFrame();
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnPageSetup(wxCommandEvent& event);
void OnPrint(wxCommandEvent& event);
void OnPreview(wxCommandEvent& event);
void OnOpen(wxCommandEvent& event);
void OnPrintSmall(wxCommandEvent& event);
void OnPrintNormal(wxCommandEvent& event);
void OnPrintHuge(wxCommandEvent& event);
private:
wxHtmlWindow *m_Html;
wxHtmlEasyPrinting *m_Prn;
wxString m_Name;
// any class wishing to process wxWidgets events must use this macro
wxDECLARE_EVENT_TABLE();
};
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// IDs for the controls and the menu commands
enum
{
// menu items
Minimal_Quit = 1,
Minimal_Print,
Minimal_Preview,
Minimal_PageSetup,
Minimal_Open,
Minimal_PrintSmall,
Minimal_PrintNormal,
Minimal_PrintHuge
};
// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------
// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
EVT_MENU(Minimal_Print, MyFrame::OnPrint)
EVT_MENU(Minimal_Preview, MyFrame::OnPreview)
EVT_MENU(Minimal_PageSetup, MyFrame::OnPageSetup)
EVT_MENU(Minimal_Open, MyFrame::OnOpen)
EVT_MENU(Minimal_PrintSmall, MyFrame::OnPrintSmall)
EVT_MENU(Minimal_PrintNormal, MyFrame::OnPrintNormal)
EVT_MENU(Minimal_PrintHuge, MyFrame::OnPrintHuge)
wxEND_EVENT_TABLE()
// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also declares the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
// `Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
#if wxUSE_LIBPNG
wxImage::AddHandler(new wxPNGHandler);
#endif
#if wxUSE_LIBJPEG
wxImage::AddHandler(new wxJPEGHandler);
#endif
#if wxUSE_GIF
wxImage::AddHandler(new wxGIFHandler);
#endif
MyFrame *frame = new MyFrame(_("Printing test"),
wxDefaultPosition, wxSize(640, 480));
// Show it
frame->Show(true);
// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned false here, the
// application would exit immediately.
return true;
}
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
// frame constructor
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
: wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size)
{
SetIcon(wxICON(sample));
// create a menu bar
wxMenu *menuFile = new wxMenu;
menuFile->Append(Minimal_Open, _("Open...\tCtrl-O"));
menuFile->AppendSeparator();
menuFile->Append(Minimal_PageSetup, _("Page &Setup"));
menuFile->Append(Minimal_Preview, _("Print pre&view..."));
menuFile->Append(Minimal_Print, _("Print...\tCtrl-P"));
menuFile->AppendSeparator();
menuFile->Append(wxID_ABOUT, _("&About"));
menuFile->AppendSeparator();
menuFile->Append(Minimal_Quit, _("&Exit"));
wxMenu *menuFonts = new wxMenu;
menuFonts->AppendRadioItem(Minimal_PrintSmall, _("&Small Printer Fonts"));
menuFonts->AppendRadioItem(Minimal_PrintNormal, _("&Normal Printer Fonts"));
menuFonts->AppendRadioItem(Minimal_PrintHuge, _("&Huge Printer Fonts"));
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar;
menuBar->Append(menuFile, _("&File"));
menuBar->Append(menuFonts, _("F&onts"));
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
#if wxUSE_STATUSBAR
CreateStatusBar(1);
#endif // wxUSE_STATUSBAR
m_Html = new wxHtmlWindow(this);
m_Html -> SetRelatedFrame(this, _("HTML : %s"));
#if wxUSE_STATUSBAR
m_Html -> SetRelatedStatusBar(0);
#endif // wxUSE_STATUSBAR
m_Name = wxT("test.htm");
m_Html -> LoadPage(m_Name);
m_Prn = new wxHtmlEasyPrinting(_("Easy Printing Demo"), this);
m_Prn -> SetHeader(m_Name + wxT("(@PAGENUM@/@PAGESCNT@)<hr>"), wxPAGE_ALL);
// To specify where the AFM files are kept on Unix,
// you may wish to do something like this
// m_Prn->GetPrintData()->SetFontMetricPath(wxT("/home/julians/afm"));
}
// frame destructor
MyFrame::~MyFrame()
{
wxDELETE(m_Prn);
}
// event handlers
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(_("HTML printing sample\n\n(c) Vaclav Slavik, 1999"));
}
void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PageSetup();
}
void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PrintFile(m_Name);
}
void MyFrame::OnPreview(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PreviewFile(m_Name);
}
void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
{
wxFileDialog dialog(this, _("Open HTML page"), wxT(""), wxT(""), wxT("*.htm"), 0);
if (dialog.ShowModal() == wxID_OK)
{
m_Name = dialog.GetPath();
m_Html -> LoadPage(m_Name);
m_Prn -> SetHeader(m_Name + wxT("(@PAGENUM@/@PAGESCNT@)<hr>"), wxPAGE_ALL);
}
}
void MyFrame::OnPrintSmall(wxCommandEvent& WXUNUSED(event))
{
m_Prn->SetStandardFonts(8);
}
void MyFrame::OnPrintNormal(wxCommandEvent& WXUNUSED(event))
{
m_Prn->SetStandardFonts(12);
}
void MyFrame::OnPrintHuge(wxCommandEvent& WXUNUSED(event))
{
m_Prn->SetStandardFonts(28);
}