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revise all code; do not use many global objects; use wxLog to give errors/messages; put drawing code in a wxApp member; get rid of old code; fix indentation

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59126 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi
2009-02-25 11:54:16 +00:00
parent c9082c105d
commit 48ed4a8971
2 changed files with 354 additions and 317 deletions
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591
samples/printing/printing.cpp
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@@ -2,7 +2,7 @@
// Name: samples/printing.cpp // Name: samples/printing.cpp
// Purpose: Printing demo for wxWidgets // Purpose: Printing demo for wxWidgets
// Author: Julian Smart // Author: Julian Smart
// Modified by: // Modified by: Francesco Montorsi
// Created: 1995 // Created: 1995
// RCS-ID: $Id$ // RCS-ID: $Id$
// Copyright: (c) Julian Smart // Copyright: (c) Julian Smart
@@ -13,15 +13,16 @@
#include "wx/wxprec.h" #include "wx/wxprec.h"
#ifdef __BORLANDC__ #ifdef __BORLANDC__
#pragma hdrstop #pragma hdrstop
#endif #endif
#ifndef WX_PRECOMP #ifndef WX_PRECOMP
#include "wx/wx.h" #include "wx/wx.h"
#include "wx/log.h"
#endif #endif
#if !wxUSE_PRINTING_ARCHITECTURE #if !wxUSE_PRINTING_ARCHITECTURE
#error "You must set wxUSE_PRINTING_ARCHITECTURE to 1 in setup.h, and recompile the library." #error "You must set wxUSE_PRINTING_ARCHITECTURE to 1 in setup.h, and recompile the library."
#endif #endif
// Set this to 1 if you want to test PostScript printing under MSW. // Set this to 1 if you want to test PostScript printing under MSW.
@@ -36,43 +37,38 @@
#include "wx/accel.h" #include "wx/accel.h"
#if wxTEST_POSTSCRIPT_IN_MSW #if wxTEST_POSTSCRIPT_IN_MSW
#include "wx/generic/printps.h" #include "wx/generic/printps.h"
#include "wx/generic/prntdlgg.h" #include "wx/generic/prntdlgg.h"
#endif #endif
#if wxUSE_GRAPHICS_CONTEXT #if wxUSE_GRAPHICS_CONTEXT
#include "wx/graphics.h" #include "wx/graphics.h"
#endif #endif
#ifdef __WXMAC__ #ifdef __WXMAC__
#include "wx/mac/printdlg.h" #include "wx/mac/printdlg.h"
#endif #endif
#include "printing.h" #include "printing.h"
#ifndef __WXMSW__ #ifndef __WXMSW__
#include "mondrian.xpm" #include "mondrian.xpm"
#endif #endif
// Declare a frame
MyFrame *frame = (MyFrame *) NULL;
// int orientation = wxPORTRAIT;
// Global print data, to remember settings during the session // Global print data, to remember settings during the session
wxPrintData *g_printData = (wxPrintData*) NULL ; wxPrintData *g_printData = NULL;
// Global page setup data // Global page setup data
wxPageSetupDialogData* g_pageSetupData = (wxPageSetupDialogData*) NULL; wxPageSetupDialogData* g_pageSetupData = NULL;
// ----------------------------------------------------------------------------
// MyApp
// ----------------------------------------------------------------------------
// Main proc
IMPLEMENT_APP(MyApp) IMPLEMENT_APP(MyApp)
// Writes a header on a page. Margin units are in millimetres.
bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxChar *text, float mmToLogical);
// The `main program' equivalent, creating the windows and returning the
// main frame
bool MyApp::OnInit(void) bool MyApp::OnInit(void)
{ {
if ( !wxApp::OnInit() ) if ( !wxApp::OnInit() )
@@ -80,88 +76,53 @@ bool MyApp::OnInit(void)
wxInitAllImageHandlers(); wxInitAllImageHandlers();
m_testFont.Create(10, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
// init global objects
// -------------------
g_printData = new wxPrintData; g_printData = new wxPrintData;
// You could set an initial paper size here // You could set an initial paper size here
// g_printData->SetPaperId(wxPAPER_LETTER); // for Americans #if 0
// g_printData->SetPaperId(wxPAPER_A4); // for everyone else g_printData->SetPaperId(wxPAPER_LETTER); // for Americans
g_printData->SetPaperId(wxPAPER_A4); // for everyone else
#endif
g_pageSetupData = new wxPageSetupDialogData; g_pageSetupData = new wxPageSetupDialogData;
// copy over initial paper size from print record // copy over initial paper size from print record
(*g_pageSetupData) = *g_printData; (*g_pageSetupData) = *g_printData;
// Set some initial page margins in mm.
// Set some initial page margins in mm.
g_pageSetupData->SetMarginTopLeft(wxPoint(15, 15)); g_pageSetupData->SetMarginTopLeft(wxPoint(15, 15));
g_pageSetupData->SetMarginBottomRight(wxPoint(15, 15)); g_pageSetupData->SetMarginBottomRight(wxPoint(15, 15));
// init local GUI objects
// ----------------------
#if 0
wxImage image( wxT("test.jpg") );
image.SetAlpha();
int i,j;
for (i = 0; i < image.GetWidth(); i++)
for (j = 0; j < image.GetHeight(); j++)
image.SetAlpha( i, j, 50 );
m_bitmap = image;
#endif
m_angle = 30;
m_testFont.Create(10, wxFONTFAMILY_SWISS, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
// Create the main frame window // Create the main frame window
frame = new MyFrame((wxFrame *) NULL, _T("wxWidgets Printing Demo"), // ----------------------------
wxPoint(0, 0), wxSize(400, 400));
#if wxUSE_STATUSBAR MyFrame* frame = new MyFrame((wxFrame *) NULL, _T("wxWidgets Printing Demo"),
// Give it a status line wxPoint(0, 0), wxSize(400, 400));
frame->CreateStatusBar(2);
#endif // wxUSE_STATUSBAR
// Load icon and bitmap
frame->SetIcon( wxICON( mondrian) );
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(WXPRINT_PRINT, _T("&Print..."), _T("Print"));
file_menu->Append(WXPRINT_PAGE_SETUP, _T("Page Set&up..."), _T("Page setup"));
#ifdef __WXMAC__
file_menu->Append(WXPRINT_PAGE_MARGINS, _T("Page Margins..."), _T("Page margins"));
#endif
file_menu->Append(WXPRINT_PREVIEW, _T("Print Pre&view"), _T("Preview"));
#if wxUSE_ACCEL
// Accelerators
wxAcceleratorEntry entries[1];
entries[0].Set(wxACCEL_CTRL, (int) 'V', WXPRINT_PREVIEW);
wxAcceleratorTable accel(1, entries);
frame->SetAcceleratorTable(accel);
#endif
#if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
file_menu->AppendSeparator();
file_menu->Append(WXPRINT_PRINT_PS, _T("Print PostScript..."), _T("Print (PostScript)"));
file_menu->Append(WXPRINT_PAGE_SETUP_PS, _T("Page Setup PostScript..."), _T("Page setup (PostScript)"));
file_menu->Append(WXPRINT_PREVIEW_PS, _T("Print Preview PostScript"), _T("Preview (PostScript)"));
#endif
file_menu->AppendSeparator();
file_menu->Append(WXPRINT_ANGLEUP, _T("Angle up\tAlt-U"), _T("Raise rotated text angle"));
file_menu->Append(WXPRINT_ANGLEDOWN, _T("Angle down\tAlt-D"), _T("Lower rotated text angle"));
file_menu->AppendSeparator();
file_menu->Append(WXPRINT_QUIT, _T("E&xit"), _T("Exit program"));
wxMenu *help_menu = new wxMenu;
help_menu->Append(WXPRINT_ABOUT, _T("&About"), _T("About this demo"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, _T("&File"));
menu_bar->Append(help_menu, _T("&Help"));
// Associate the menu bar with the frame
frame->SetMenuBar(menu_bar);
MyCanvas *canvas = new MyCanvas(frame, wxPoint(0, 0), wxSize(100, 100), wxRETAINED|wxHSCROLL|wxVSCROLL);
// Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction
canvas->SetScrollbars(20, 20, 50, 50);
frame->canvas = canvas;
frame->Centre(wxBOTH); frame->Centre(wxBOTH);
frame->Show(); frame->Show();
#if wxUSE_STATUSBAR
frame->SetStatusText(_T("Printing demo"));
#endif // wxUSE_STATUSBAR
SetTopWindow(frame); SetTopWindow(frame);
return true; return true;
@@ -171,164 +132,11 @@ int MyApp::OnExit()
{ {
delete g_printData; delete g_printData;
delete g_pageSetupData; delete g_pageSetupData;
return 1;
return wxApp::OnExit();
} }
BEGIN_EVENT_TABLE(MyFrame, wxFrame) void MyApp::Draw(wxDC&dc)
EVT_MENU(WXPRINT_QUIT, MyFrame::OnExit)
EVT_MENU(WXPRINT_PRINT, MyFrame::OnPrint)
EVT_MENU(WXPRINT_PREVIEW, MyFrame::OnPrintPreview)
EVT_MENU(WXPRINT_PAGE_SETUP, MyFrame::OnPageSetup)
EVT_MENU(WXPRINT_ABOUT, MyFrame::OnPrintAbout)
#if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
EVT_MENU(WXPRINT_PRINT_PS, MyFrame::OnPrintPS)
EVT_MENU(WXPRINT_PREVIEW_PS, MyFrame::OnPrintPreviewPS)
EVT_MENU(WXPRINT_PAGE_SETUP_PS, MyFrame::OnPageSetupPS)
#endif
#ifdef __WXMAC__
EVT_MENU(WXPRINT_PAGE_MARGINS, MyFrame::OnPageMargins)
#endif
EVT_MENU(WXPRINT_ANGLEUP, MyFrame::OnAngleUp)
EVT_MENU(WXPRINT_ANGLEDOWN, MyFrame::OnAngleDown)
END_EVENT_TABLE()
// Define my frame constructor
MyFrame::MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size):
wxFrame(frame, wxID_ANY, title, pos, size)
{
canvas = NULL;
m_angle = 30;
#if 0
wxImage image( wxT("test.jpg") );
image.SetAlpha();
int i,j;
for (i = 0; i < image.GetWidth(); i++)
for (j = 0; j < image.GetHeight(); j++)
image.SetAlpha( i, j, 50 );
m_bitmap = image;
#endif
}
void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
{
Close(true /*force closing*/);
}
void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
{
wxPrintDialogData printDialogData(* g_printData);
wxPrinter printer(& printDialogData);
MyPrintout printout(_T("My printout"));
if (!printer.Print(this, &printout, true /*prompt*/))
{
if (wxPrinter::GetLastError() == wxPRINTER_ERROR)
wxMessageBox(_T("There was a problem printing.\nPerhaps your current printer is not set correctly?"), _T("Printing"), wxOK);
else
wxMessageBox(_T("You canceled printing"), _T("Printing"), wxOK);
}
else
{
(*g_printData) = printer.GetPrintDialogData().GetPrintData();
}
}
void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event))
{
// Pass two printout objects: for preview, and possible printing.
wxPrintDialogData printDialogData(* g_printData);
wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData);
if (!preview->Ok())
{
delete preview;
wxMessageBox(_T("There was a problem previewing.\nPerhaps your current printer is not set correctly?"), _T("Previewing"), wxOK);
return;
}
wxPreviewFrame *frame = new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650));
frame->Centre(wxBOTH);
frame->Initialize();
frame->Show();
}
void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
{
(*g_pageSetupData) = *g_printData;
wxPageSetupDialog pageSetupDialog(this, g_pageSetupData);
pageSetupDialog.ShowModal();
(*g_printData) = pageSetupDialog.GetPageSetupDialogData().GetPrintData();
(*g_pageSetupData) = pageSetupDialog.GetPageSetupDialogData();
}
#if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
void MyFrame::OnPrintPS(wxCommandEvent& WXUNUSED(event))
{
wxPostScriptPrinter printer(g_printData);
MyPrintout printout(_T("My printout"));
printer.Print(this, &printout, true/*prompt*/);
(*g_printData) = printer.GetPrintData();
}
void MyFrame::OnPrintPreviewPS(wxCommandEvent& WXUNUSED(event))
{
// Pass two printout objects: for preview, and possible printing.
wxPrintDialogData printDialogData(* g_printData);
wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, & printDialogData);
wxPreviewFrame *frame = new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650));
frame->Centre(wxBOTH);
frame->Initialize();
frame->Show();
}
void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event))
{
(*g_pageSetupData) = * g_printData;
wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData);
pageSetupDialog.ShowModal();
(*g_printData) = pageSetupDialog.GetPageSetupDialogData().GetPrintData();
(*g_pageSetupData) = pageSetupDialog.GetPageSetupDialogData();
}
#endif
#ifdef __WXMAC__
void MyFrame::OnPageMargins(wxCommandEvent& WXUNUSED(event))
{
(*g_pageSetupData) = *g_printData;
wxMacPageMarginsDialog pageMarginsDialog(this, g_pageSetupData);
pageMarginsDialog.ShowModal();
(*g_printData) = pageMarginsDialog.GetPageSetupDialogData().GetPrintData();
(*g_pageSetupData) = pageMarginsDialog.GetPageSetupDialogData();
}
#endif
void MyFrame::OnPrintAbout(wxCommandEvent& WXUNUSED(event))
{
(void)wxMessageBox(_T("wxWidgets printing demo\nAuthor: Julian Smart"),
_T("About wxWidgets printing demo"), wxOK|wxCENTRE);
}
void MyFrame::OnAngleUp(wxCommandEvent& WXUNUSED(event))
{
m_angle += 5;
canvas->Refresh();
}
void MyFrame::OnAngleDown(wxCommandEvent& WXUNUSED(event))
{
m_angle -= 5;
canvas->Refresh();
}
void MyFrame::Draw(wxDC& dc)
{ {
// This routine just draws a bunch of random stuff on the screen so that we // This routine just draws a bunch of random stuff on the screen so that we
// can check that different types of object are being drawn consistently // can check that different types of object are being drawn consistently
@@ -336,13 +144,13 @@ void MyFrame::Draw(wxDC& dc)
// levels), and the printed page. // levels), and the printed page.
dc.SetBackground(*wxWHITE_BRUSH); dc.SetBackground(*wxWHITE_BRUSH);
// dc.Clear(); // dc.Clear();
dc.SetFont(wxGetApp().m_testFont); dc.SetFont(m_testFont);
// dc.SetBackgroundMode(wxTRANSPARENT); // dc.SetBackgroundMode(wxTRANSPARENT);
dc.SetPen(*wxBLACK_PEN); dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxLIGHT_GREY_BRUSH); dc.SetBrush(*wxLIGHT_GREY_BRUSH);
dc.DrawRectangle(0, 0, 230, 350); dc.DrawRectangle(0, 0, 230, 350);
dc.DrawLine(0, 0, 229, 349); dc.DrawLine(0, 0, 229, 349);
dc.DrawLine(229, 0, 0, 349); dc.DrawLine(229, 0, 0, 349);
@@ -352,7 +160,7 @@ void MyFrame::Draw(wxDC& dc)
dc.SetPen(*wxRED_PEN); dc.SetPen(*wxRED_PEN);
dc.DrawRoundedRectangle(0, 20, 200, 80, 20); dc.DrawRoundedRectangle(0, 20, 200, 80, 20);
dc.DrawText( wxT("Rectangle 200 by 80"), 40, 40); dc.DrawText( wxT("Rectangle 200 by 80"), 40, 40);
dc.SetPen( wxPen(*wxBLACK,0,wxDOT_DASH) ); dc.SetPen( wxPen(*wxBLACK,0,wxDOT_DASH) );
@@ -360,7 +168,7 @@ void MyFrame::Draw(wxDC& dc)
dc.SetPen(*wxRED_PEN); dc.SetPen(*wxRED_PEN);
dc.DrawText( wxT("Test message: this is in 10 point text"), 10, 180); dc.DrawText( wxT("Test message: this is in 10 point text"), 10, 180);
#if wxUSE_UNICODE #if wxUSE_UNICODE
const char *test = "Hebrew שלום -- Japanese (日本語)"; const char *test = "Hebrew שלום -- Japanese (日本語)";
wxString tmp = wxConvUTF8.cMB2WC( test ); wxString tmp = wxConvUTF8.cMB2WC( test );
@@ -394,7 +202,7 @@ void MyFrame::Draw(wxDC& dc)
dc.DrawSpline( 4, points ); dc.DrawSpline( 4, points );
dc.DrawArc( 20,10, 10,10, 25,40 ); dc.DrawArc( 20,10, 10,10, 25,40 );
wxString str; wxString str;
int i = 0; int i = 0;
str.Printf( wxT("---- Text at angle %d ----"), i ); str.Printf( wxT("---- Text at angle %d ----"), i );
@@ -404,11 +212,11 @@ void MyFrame::Draw(wxDC& dc)
str.Printf( wxT("---- Text at angle %d ----"), i ); str.Printf( wxT("---- Text at angle %d ----"), i );
dc.DrawRotatedText( str, 100, 300, i ); dc.DrawRotatedText( str, 100, 300, i );
wxIcon my_icon = wxICON(mondrian) ; wxIcon my_icon = wxICON(mondrian);
dc.DrawIcon( my_icon, 100, 100); dc.DrawIcon( my_icon, 100, 100);
if (m_bitmap.Ok()) if (m_bitmap.IsOk())
dc.DrawBitmap( m_bitmap, 10, 10 ); dc.DrawBitmap( m_bitmap, 10, 10 );
#if wxUSE_GRAPHICS_CONTEXT #if wxUSE_GRAPHICS_CONTEXT
@@ -421,12 +229,12 @@ void MyFrame::Draw(wxDC& dc)
wxWindowDC *window_dc = wxDynamicCast( &dc, wxWindowDC ); wxWindowDC *window_dc = wxDynamicCast( &dc, wxWindowDC );
if (window_dc) if (window_dc)
gc = wxGraphicsContext::Create( *window_dc ); gc = wxGraphicsContext::Create( *window_dc );
if (gc) if (gc)
{ {
// make a path that contains a circle and some lines, centered at 100,100 // make a path that contains a circle and some lines, centered at 100,100
gc->SetPen( *wxRED_PEN ); gc->SetPen( *wxRED_PEN );
gc->SetFont( wxGetApp().m_testFont, *wxGREEN ); gc->SetFont( m_testFont, *wxGREEN );
wxGraphicsPath path = gc->CreatePath(); wxGraphicsPath path = gc->CreatePath();
path.AddCircle( 50.0, 50.0, 50.0 ); path.AddCircle( 50.0, 50.0, 50.0 );
path.MoveToPoint(0.0, 50.0); path.MoveToPoint(0.0, 50.0);
@@ -435,38 +243,250 @@ void MyFrame::Draw(wxDC& dc)
path.AddLineToPoint(50.0, 100.0 ); path.AddLineToPoint(50.0, 100.0 );
path.CloseSubpath(); path.CloseSubpath();
path.AddRectangle(25.0, 25.0, 50.0, 50.0); path.AddRectangle(25.0, 25.0, 50.0, 50.0);
gc->StrokePath(path); gc->StrokePath(path);
delete gc; delete gc;
} }
#endif #endif
} }
void MyFrame::OnSize(wxSizeEvent& event )
{
wxFrame::OnSize(event);
}
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow) // ----------------------------------------------------------------------------
EVT_MOUSE_EVENTS(MyCanvas::OnEvent) // MyFrame
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(wxID_EXIT, MyFrame::OnExit)
EVT_MENU(wxID_PRINT, MyFrame::OnPrint)
EVT_MENU(wxID_PREVIEW, MyFrame::OnPrintPreview)
EVT_MENU(WXPRINT_PAGE_SETUP, MyFrame::OnPageSetup)
EVT_MENU(wxID_ABOUT, MyFrame::OnPrintAbout)
#if defined(__WXMSW__) &&wxTEST_POSTSCRIPT_IN_MSW
EVT_MENU(WXPRINT_PRINT_PS, MyFrame::OnPrintPS)
EVT_MENU(WXPRINT_PREVIEW_PS, MyFrame::OnPrintPreviewPS)
EVT_MENU(WXPRINT_PAGE_SETUP_PS, MyFrame::OnPageSetupPS)
#endif
#ifdef __WXMAC__
EVT_MENU(WXPRINT_PAGE_MARGINS, MyFrame::OnPageMargins)
#endif
EVT_MENU(WXPRINT_ANGLEUP, MyFrame::OnAngleUp)
EVT_MENU(WXPRINT_ANGLEDOWN, MyFrame::OnAngleDown)
END_EVENT_TABLE() END_EVENT_TABLE()
MyCanvas::MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style): MyFrame::MyFrame(wxFrame *frame, const wxString&title, const wxPoint&pos, const wxSize&size)
wxScrolledWindow(frame, wxID_ANY, pos, size, style) : wxFrame(frame, wxID_ANY, title, pos, size)
{ {
SetBackgroundColour(* wxWHITE); m_canvas = NULL;
#if wxUSE_STATUSBAR
// Give us a status line
CreateStatusBar(2);
SetStatusText(_T("Printing demo"));
#endif // wxUSE_STATUSBAR
// Load icon and bitmap
SetIcon( wxICON( mondrian) );
// Make a menubar
wxMenu *file_menu = new wxMenu;
file_menu->Append(wxID_PRINT, _T("&Print..."), _T("Print"));
file_menu->Append(WXPRINT_PAGE_SETUP, _T("Page Set&up..."), _T("Page setup"));
#ifdef __WXMAC__
file_menu->Append(WXPRINT_PAGE_MARGINS, _T("Page Margins..."), _T("Page margins"));
#endif
file_menu->Append(wxID_PREVIEW, _T("Print Pre&view"), _T("Preview"));
#if wxUSE_ACCEL
// Accelerators
wxAcceleratorEntry entries[1];
entries[0].Set(wxACCEL_CTRL, (int) 'V', wxID_PREVIEW);
wxAcceleratorTable accel(1, entries);
SetAcceleratorTable(accel);
#endif
#if defined(__WXMSW__) &&wxTEST_POSTSCRIPT_IN_MSW
file_menu->AppendSeparator();
file_menu->Append(WXPRINT_PRINT_PS, _T("Print PostScript..."), _T("Print (PostScript)"));
file_menu->Append(WXPRINT_PAGE_SETUP_PS, _T("Page Setup PostScript..."), _T("Page setup (PostScript)"));
file_menu->Append(WXPRINT_PREVIEW_PS, _T("Print Preview PostScript"), _T("Preview (PostScript)"));
#endif
file_menu->AppendSeparator();
file_menu->Append(WXPRINT_ANGLEUP, _T("Angle up\tAlt-U"), _T("Raise rotated text angle"));
file_menu->Append(WXPRINT_ANGLEDOWN, _T("Angle down\tAlt-D"), _T("Lower rotated text angle"));
file_menu->AppendSeparator();
file_menu->Append(wxID_EXIT, _T("E&xit"), _T("Exit program"));
wxMenu *help_menu = new wxMenu;
help_menu->Append(wxID_ABOUT, _T("&About"), _T("About this demo"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, _T("&File"));
menu_bar->Append(help_menu, _T("&Help"));
// Associate the menu bar with the frame
SetMenuBar(menu_bar);
// create the canvas
// -----------------
m_canvas = new MyCanvas(this, wxPoint(0, 0), wxSize(100, 100),
wxRETAINED|wxHSCROLL|wxVSCROLL);
// Give it scrollbars: the virtual canvas is 20 * 50 = 1000 pixels in each direction
m_canvas->SetScrollbars(20, 20, 50, 50);
} }
void MyFrame::OnExit(wxCommandEvent& WXUNUSED(event))
{
Close(true /*force closing*/);
}
void MyFrame::OnPrint(wxCommandEvent& WXUNUSED(event))
{
wxPrintDialogData printDialogData(* g_printData);
wxPrinter printer(&printDialogData);
MyPrintout printout(this, _T("My printout"));
if (!printer.Print(this, &printout, true /*prompt*/))
{
if (wxPrinter::GetLastError() == wxPRINTER_ERROR)
wxLogError(_T("There was a problem printing. Perhaps your current printer is not set correctly?"));
else
wxLogMessage(_T("You canceled printing"));
}
else
{
(*g_printData) = printer.GetPrintDialogData().GetPrintData();
}
}
void MyFrame::OnPrintPreview(wxCommandEvent& WXUNUSED(event))
{
// Pass two printout objects: for preview, and possible printing.
wxPrintDialogData printDialogData(* g_printData);
wxPrintPreview *preview =
new wxPrintPreview(new MyPrintout(this), new MyPrintout(this), &printDialogData);
if (!preview->IsOk())
{
delete preview;
wxLogError(_T("There was a problem previewing.\nPerhaps your current printer is not set correctly?"));
return;
}
wxPreviewFrame *frame =
new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650));
frame->Centre(wxBOTH);
frame->Initialize();
frame->Show();
}
void MyFrame::OnPageSetup(wxCommandEvent& WXUNUSED(event))
{
(*g_pageSetupData) = *g_printData;
wxPageSetupDialog pageSetupDialog(this, g_pageSetupData);
pageSetupDialog.ShowModal();
(*g_printData) = pageSetupDialog.GetPageSetupDialogData().GetPrintData();
(*g_pageSetupData) = pageSetupDialog.GetPageSetupDialogData();
}
#if defined(__WXMSW__) && wxTEST_POSTSCRIPT_IN_MSW
void MyFrame::OnPrintPS(wxCommandEvent& WXUNUSED(event))
{
wxPostScriptPrinter printer(g_printData);
MyPrintout printout(_T("My printout"));
printer.Print(this, &printout, true/*prompt*/);
(*g_printData) = printer.GetPrintData();
}
void MyFrame::OnPrintPreviewPS(wxCommandEvent& WXUNUSED(event))
{
// Pass two printout objects: for preview, and possible printing.
wxPrintDialogData printDialogData(* g_printData);
wxPrintPreview *preview = new wxPrintPreview(new MyPrintout, new MyPrintout, &printDialogData);
wxPreviewFrame *frame =
new wxPreviewFrame(preview, this, _T("Demo Print Preview"), wxPoint(100, 100), wxSize(600, 650));
frame->Centre(wxBOTH);
frame->Initialize();
frame->Show();
}
void MyFrame::OnPageSetupPS(wxCommandEvent& WXUNUSED(event))
{
(*g_pageSetupData) = * g_printData;
wxGenericPageSetupDialog pageSetupDialog(this, g_pageSetupData);
pageSetupDialog.ShowModal();
(*g_printData) = pageSetupDialog.GetPageSetupDialogData().GetPrintData();
(*g_pageSetupData) = pageSetupDialog.GetPageSetupDialogData();
}
#endif
#ifdef __WXMAC__
void MyFrame::OnPageMargins(wxCommandEvent& WXUNUSED(event))
{
(*g_pageSetupData) = *g_printData;
wxMacPageMarginsDialog pageMarginsDialog(this, g_pageSetupData);
pageMarginsDialog.ShowModal();
(*g_printData) = pageMarginsDialog.GetPageSetupDialogData().GetPrintData();
(*g_pageSetupData) = pageMarginsDialog.GetPageSetupDialogData();
}
#endif
void MyFrame::OnPrintAbout(wxCommandEvent& WXUNUSED(event))
{
(void)wxMessageBox(_T("wxWidgets printing demo\nAuthor: Julian Smart"),
_T("About wxWidgets printing demo"), wxOK|wxCENTRE);
}
void MyFrame::OnAngleUp(wxCommandEvent& WXUNUSED(event))
{
wxGetApp().IncrementAngle();
m_canvas->Refresh();
}
void MyFrame::OnAngleDown(wxCommandEvent& WXUNUSED(event))
{
wxGetApp().DecrementAngle();
m_canvas->Refresh();
}
// ----------------------------------------------------------------------------
// MyCanvas
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
// EVT_PAINT(MyCanvas::OnPaint)
END_EVENT_TABLE()
MyCanvas::MyCanvas(wxFrame *frame, const wxPoint&pos, const wxSize&size, long style)
: wxScrolledWindow(frame, wxID_ANY, pos, size, style)
{
SetBackgroundColour(*wxWHITE);
}
//void MyCanvas::OnPaint(wxPaintEvent& WXUNUSED(evt))
void MyCanvas::OnDraw(wxDC& dc) void MyCanvas::OnDraw(wxDC& dc)
{ {
frame->Draw(dc); //wxPaintDC dc(this);
wxGetApp().Draw(dc);
} }
void MyCanvas::OnEvent(wxMouseEvent& WXUNUSED(event))
{ // ----------------------------------------------------------------------------
} // MyPrintout
// ----------------------------------------------------------------------------
bool MyPrintout::OnPrintPage(int page) bool MyPrintout::OnPrintPage(int page)
{ {
@@ -481,9 +501,8 @@ bool MyPrintout::OnPrintPage(int page)
// Draw page numbers at top left corner of printable area, sized so that // Draw page numbers at top left corner of printable area, sized so that
// screen size of text matches paper size. // screen size of text matches paper size.
MapScreenSizeToPage(); MapScreenSizeToPage();
wxChar buf[200];
wxSprintf(buf, wxT("PAGE %d"), page); dc->DrawText(wxString::Format(wxT("PAGE %d"), page), 0, 0);
dc->DrawText(buf, 0, 0);
return true; return true;
} }
@@ -582,7 +601,7 @@ void MyPrintout::DrawPageOne()
// wxCoord yoff = (fitRect.height - maxY); // wxCoord yoff = (fitRect.height - maxY);
// OffsetLogicalOrigin(xoff, yoff); // OffsetLogicalOrigin(xoff, yoff);
frame->Draw(*GetDC()); wxGetApp().Draw(*GetDC());
} }
void MyPrintout::DrawPageTwo() void MyPrintout::DrawPageTwo()
@@ -639,7 +658,8 @@ void MyPrintout::DrawPageTwo()
dc->SetBrush(*wxTRANSPARENT_BRUSH); dc->SetBrush(*wxTRANSPARENT_BRUSH);
{ // GetTextExtent demo: { // GetTextExtent demo:
wxString words[7] = {_T("This "), _T("is "), _T("GetTextExtent "), _T("testing "), _T("string. "), _T("Enjoy "), _T("it!")}; wxString words[7] = { _T("This "), _T("is "), _T("GetTextExtent "),
_T("testing "), _T("string. "), _T("Enjoy "), _T("it!") };
wxCoord w, h; wxCoord w, h;
long x = 200, y= 250; long x = 200, y= 250;
wxFont fnt(15, wxSWISS, wxNORMAL, wxNORMAL); wxFont fnt(15, wxSWISS, wxNORMAL, wxNORMAL);
@@ -659,7 +679,7 @@ void MyPrintout::DrawPageTwo()
} }
dc->SetFont(wxGetApp().m_testFont); dc->SetFont(wxGetApp().GetTestFont());
dc->DrawText(_T("Some test text"), 200, 300 ); dc->DrawText(_T("Some test text"), 200, 300 );
@@ -688,16 +708,16 @@ void MyPrintout::DrawPageTwo()
} }
// Writes a header on a page. Margin units are in millimetres. // Writes a header on a page. Margin units are in millimetres.
bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxChar *text, float mmToLogical) bool MyPrintout::WritePageHeader(wxPrintout *printout, wxDC *dc, const wxString&text, float mmToLogical)
{ {
/* #if 0
static wxFont *headerFont = (wxFont *) NULL; static wxFont *headerFont = (wxFont *) NULL;
if (!headerFont) if (!headerFont)
{ {
headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD); headerFont = wxTheFontList->FindOrCreateFont(16, wxSWISS, wxNORMAL, wxBOLD);
} }
dc->SetFont(headerFont); dc->SetFont(headerFont);
*/ #endif
int pageWidthMM, pageHeightMM; int pageWidthMM, pageHeightMM;
@@ -714,12 +734,13 @@ dc->SetFont(headerFont);
wxCoord xExtent, yExtent; wxCoord xExtent, yExtent;
dc->GetTextExtent(text, &xExtent, &yExtent); dc->GetTextExtent(text, &xExtent, &yExtent);
float xPos = (float)(((((pageWidthMM - leftMargin - rightMargin)/2.0)+leftMargin)*mmToLogical) - (xExtent/2.0)); float xPos = (float)(((((pageWidthMM - leftMargin - rightMargin)/2.0)+leftMargin)*mmToLogical) - (xExtent/2.0));
dc->DrawText(text, (long)xPos, (long)topMarginLogical); dc->DrawText(text, (long)xPos, (long)topMarginLogical);
dc->SetPen(* wxBLACK_PEN); dc->SetPen(* wxBLACK_PEN);
dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent), dc->DrawLine( (long)leftMarginLogical, (long)(topMarginLogical+yExtent),
(long)rightMarginLogical, (long)topMarginLogical+yExtent ); (long)rightMarginLogical, (long)topMarginLogical+yExtent );
return true; return true;
} }

80
samples/printing/printing.h
View File

@@ -1,6 +1,5 @@
///////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////
// Name: samples/printing.h // Name: samples/printing.h
// Purpose: Printing demo for wxWidgets // Purpose: Printing demo for wxWidgets
// Author: Julian Smart // Author: Julian Smart
// Modified by: // Modified by:
@@ -13,32 +12,40 @@
// Define a new application // Define a new application
class MyApp: public wxApp class MyApp: public wxApp
{ {
public: public:
MyApp(){}; MyApp() {}
bool OnInit();
int OnExit();
wxFont m_testFont; virtual bool OnInit();
virtual int OnExit();
void Draw(wxDC& dc);
void IncrementAngle()
{ m_angle += 5; }
void DecrementAngle()
{ m_angle -= 5; }
wxFont& GetTestFont()
{ return m_testFont; }
private:
int m_angle;
wxBitmap m_bitmap;
wxFont m_testFont;
}; };
DECLARE_APP(MyApp) DECLARE_APP(MyApp)
class MyCanvas; class MyCanvas;
// Define a new canvas and frame // Define a new canvas and frame
class MyFrame: public wxFrame class MyFrame: public wxFrame
{ {
public: public:
MyCanvas *canvas;
wxBitmap m_bitmap;
int m_angle;
MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size); MyFrame(wxFrame *frame, const wxString& title, const wxPoint& pos, const wxSize& size);
void Draw(wxDC& dc);
void OnAngleUp(wxCommandEvent& event); void OnAngleUp(wxCommandEvent& event);
void OnAngleDown(wxCommandEvent& event); void OnAngleDown(wxCommandEvent& event);
void OnSize(wxSizeEvent& event);
void OnPrint(wxCommandEvent& event); void OnPrint(wxCommandEvent& event);
void OnPrintPreview(wxCommandEvent& event); void OnPrintPreview(wxCommandEvent& event);
void OnPageSetup(wxCommandEvent& event); void OnPageSetup(wxCommandEvent& event);
@@ -53,48 +60,57 @@ class MyFrame: public wxFrame
void OnExit(wxCommandEvent& event); void OnExit(wxCommandEvent& event);
void OnPrintAbout(wxCommandEvent& event); void OnPrintAbout(wxCommandEvent& event);
DECLARE_EVENT_TABLE()
private:
MyCanvas* m_canvas;
DECLARE_EVENT_TABLE()
}; };
// Define a new canvas which can receive some events // Define a new white canvas
class MyCanvas: public wxScrolledWindow class MyCanvas: public wxScrolledWindow
{ {
public: public:
MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style = wxRETAINED); MyCanvas(wxFrame *frame, const wxPoint& pos, const wxSize& size, long style = wxRETAINED);
~MyCanvas(void){};
//void OnPaint(wxPaintEvent& evt);
virtual void OnDraw(wxDC& dc); virtual void OnDraw(wxDC& dc);
void OnEvent(wxMouseEvent& event);
DECLARE_EVENT_TABLE() private:
DECLARE_EVENT_TABLE()
}; };
// Defines a new printout class to print our document
class MyPrintout: public wxPrintout class MyPrintout: public wxPrintout
{ {
public: public:
MyPrintout(const wxChar *title = _T("My printout")):wxPrintout(title) {} MyPrintout(MyFrame* frame, const wxString &title = _T("My printout"))
bool OnPrintPage(int page); : wxPrintout(title) { m_frame=frame; }
bool HasPage(int page);
bool OnBeginDocument(int startPage, int endPage);
void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo);
void DrawPageOne(); bool OnPrintPage(int page);
bool HasPage(int page);
bool OnBeginDocument(int startPage, int endPage);
void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo);
void DrawPageTwo(); void DrawPageOne();
void DrawPageTwo();
// Writes a header on a page. Margin units are in millimetres.
bool WritePageHeader(wxPrintout *printout, wxDC *dc, const wxString& text, float mmToLogical);
private:
MyFrame *m_frame;
}; };
#define WXPRINT_QUIT 100
#define WXPRINT_PRINT 101 // constants:
#define WXPRINT_PAGE_SETUP 103 #define WXPRINT_PAGE_SETUP 103
#define WXPRINT_PREVIEW 104
#define WXPRINT_PRINT_PS 105 #define WXPRINT_PRINT_PS 105
#define WXPRINT_PAGE_SETUP_PS 107 #define WXPRINT_PAGE_SETUP_PS 107
#define WXPRINT_PREVIEW_PS 108 #define WXPRINT_PREVIEW_PS 108
#define WXPRINT_ABOUT 109
#define WXPRINT_ANGLEUP 110 #define WXPRINT_ANGLEUP 110
#define WXPRINT_ANGLEDOWN 111 #define WXPRINT_ANGLEDOWN 111