home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 10 Tools
/
10-Tools.zip
/
wxos2233.zip
/
wxOS2-2_3_3.zip
/
wxWindows-2.3.3
/
src
/
common
/
prntbase.cpp
< prev
next >
Wrap
C/C++ Source or Header
|
2002-08-17
|
24KB
|
898 lines
/////////////////////////////////////////////////////////////////////////////
// Name: prntbase.cpp
// Purpose: Printing framework base class implementation
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id: prntbase.cpp,v 1.46 2002/08/16 17:39:51 RR Exp $
// Copyright: (c) Julian Smart and Markus Holzem
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "prntbase.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/defs.h"
#if wxUSE_PRINTING_ARCHITECTURE
#ifndef WX_PRECOMP
#include "wx/utils.h"
#include "wx/dc.h"
#include "wx/app.h"
#include "wx/msgdlg.h"
#include "wx/layout.h"
#include "wx/choice.h"
#include "wx/button.h"
#include "wx/settings.h"
#include "wx/dcmemory.h"
#include "wx/stattext.h"
#include "wx/intl.h"
#include "wx/textdlg.h"
#endif
#include "wx/prntbase.h"
#include "wx/dcprint.h"
#include "wx/printdlg.h"
#include "wx/module.h"
#include <stdlib.h>
#include <string.h>
#include <wx/sizer.h>
#ifdef __WXMSW__
#include "wx/msw/private.h"
#include <commdlg.h>
#ifndef __WIN32__
#include <print.h>
#endif
#endif // __WXMSW__
IMPLEMENT_CLASS(wxPrinterBase, wxObject)
IMPLEMENT_ABSTRACT_CLASS(wxPrintout, wxObject)
IMPLEMENT_CLASS(wxPreviewCanvas, wxWindow)
IMPLEMENT_CLASS(wxPreviewControlBar, wxWindow)
IMPLEMENT_CLASS(wxPreviewFrame, wxFrame)
IMPLEMENT_CLASS(wxPrintPreviewBase, wxObject)
BEGIN_EVENT_TABLE(wxPrintAbortDialog, wxDialog)
EVT_BUTTON(wxID_CANCEL, wxPrintAbortDialog::OnCancel)
END_EVENT_TABLE()
BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow)
EVT_PAINT(wxPreviewCanvas::OnPaint)
EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged)
END_EVENT_TABLE()
/*
* Printer
*/
wxPrinterBase::wxPrinterBase(wxPrintDialogData *data)
{
m_currentPrintout = (wxPrintout *) NULL;
sm_abortWindow = (wxWindow *) NULL;
sm_abortIt = FALSE;
if (data)
m_printDialogData = (*data);
sm_lastError = wxPRINTER_NO_ERROR;
}
wxWindow *wxPrinterBase::sm_abortWindow = (wxWindow *) NULL;
bool wxPrinterBase::sm_abortIt = FALSE;
wxPrinterError wxPrinterBase::sm_lastError = wxPRINTER_NO_ERROR;
wxPrinterBase::~wxPrinterBase()
{
}
void wxPrintAbortDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
{
wxPrinterBase::sm_abortIt = TRUE;
wxPrinterBase::sm_abortWindow->Show(FALSE);
wxPrinterBase::sm_abortWindow->Close(TRUE);
wxPrinterBase::sm_abortWindow = (wxWindow *) NULL;
}
wxWindow *wxPrinterBase::CreateAbortWindow(wxWindow *parent, wxPrintout * printout)
{
wxPrintAbortDialog *dialog = new wxPrintAbortDialog(parent, _("Printing ") , wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE);
wxBoxSizer *button_sizer = new wxBoxSizer( wxVERTICAL );
button_sizer->Add( new wxStaticText(dialog, -1, _("Please wait while printing\n") + printout->GetTitle() ), 0, wxALL, 10 );
button_sizer->Add( new wxButton( dialog, wxID_CANCEL, wxT("Cancel") ), 0, wxALL | wxALIGN_CENTER, 10 );
dialog->SetAutoLayout( TRUE );
dialog->SetSizer( button_sizer );
button_sizer->Fit(dialog);
button_sizer->SetSizeHints (dialog) ;
return dialog;
}
void wxPrinterBase::ReportError(wxWindow *parent, wxPrintout *WXUNUSED(printout), const wxString& message)
{
wxMessageBox(message, _("Printing Error"), wxOK, parent);
}
/*
* Printout class
*/
wxPrintout::wxPrintout(const wxString& title)
{
m_printoutTitle = title ;
m_printoutDC = (wxDC *) NULL;
m_pageWidthMM = 0;
m_pageHeightMM = 0;
m_pageWidthPixels = 0;
m_pageHeightPixels = 0;
m_PPIScreenX = 0;
m_PPIScreenY = 0;
m_PPIPrinterX = 0;
m_PPIPrinterY = 0;
m_isPreview = FALSE;
}
wxPrintout::~wxPrintout()
{
}
bool wxPrintout::OnBeginDocument(int WXUNUSED(startPage), int WXUNUSED(endPage))
{
return GetDC()->StartDoc(_("Printing ") + m_printoutTitle);
}
void wxPrintout::OnEndDocument()
{
GetDC()->EndDoc();
}
void wxPrintout::OnBeginPrinting()
{
}
void wxPrintout::OnEndPrinting()
{
}
bool wxPrintout::HasPage(int page)
{
return (page == 1);
}
void wxPrintout::GetPageInfo(int *minPage, int *maxPage, int *fromPage, int *toPage)
{
*minPage = 1;
*maxPage = 32000;
*fromPage = 1;
*toPage = 1;
}
/*
* Preview canvas
*/
wxPreviewCanvas::wxPreviewCanvas(wxPrintPreviewBase *preview, wxWindow *parent,
const wxPoint& pos, const wxSize& size, long style, const wxString& name):
wxScrolledWindow(parent, -1, pos, size, style, name)
{
m_printPreview = preview;
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
SetScrollbars(15, 18, 100, 100);
}
wxPreviewCanvas::~wxPreviewCanvas()
{
}
void wxPreviewCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
PrepareDC( dc );
/*
#ifdef __WXGTK__
if (!GetUpdateRegion().IsEmpty())
dc.SetClippingRegion( GetUpdateRegion() );
#endif
*/
if (m_printPreview)
{
m_printPreview->PaintPage(this, dc);
}
}
// Responds to colour changes, and passes event on to children.
void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
{
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE));
Refresh();
// Propagate the event to the non-top-level children
wxWindow::OnSysColourChanged(event);
}
/*
* Preview control bar
*/
BEGIN_EVENT_TABLE(wxPreviewControlBar, wxPanel)
EVT_BUTTON(wxID_PREVIEW_CLOSE, wxPreviewControlBar::OnWindowClose)
EVT_BUTTON(wxID_PREVIEW_PRINT, wxPreviewControlBar::OnPrint)
EVT_BUTTON(wxID_PREVIEW_PREVIOUS, wxPreviewControlBar::OnPreviousButton)
EVT_BUTTON(wxID_PREVIEW_NEXT, wxPreviewControlBar::OnNextButton)
EVT_BUTTON(wxID_PREVIEW_FIRST, wxPreviewControlBar::OnFirstButton)
EVT_BUTTON(wxID_PREVIEW_LAST, wxPreviewControlBar::OnLastButton)
EVT_BUTTON(wxID_PREVIEW_GOTO, wxPreviewControlBar::OnGotoButton)
EVT_CHAR(wxPreviewControlBar::OnChar)
EVT_CHOICE(wxID_PREVIEW_ZOOM, wxPreviewControlBar::OnZoom)
EVT_PAINT(wxPreviewControlBar::OnPaint)
END_EVENT_TABLE()
wxPreviewControlBar::wxPreviewControlBar(wxPrintPreviewBase *preview, long buttons,
wxWindow *parent, const wxPoint& pos, const wxSize& size,
long style, const wxString& name):
wxPanel(parent, -1, pos, size, style, name)
{
m_printPreview = preview;
m_closeButton = (wxButton *) NULL;
m_nextPageButton = (wxButton *) NULL;
m_previousPageButton = (wxButton *) NULL;
m_printButton = (wxButton *) NULL;
m_zoomControl = (wxChoice *) NULL;
m_buttonFlags = buttons;
}
wxPreviewControlBar::~wxPreviewControlBar()
{
}
void wxPreviewControlBar::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
int w, h;
GetSize(&w, &h);
dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawLine( 0, h-1, w, h-1 );
}
void wxPreviewControlBar::OnWindowClose(wxCommandEvent& WXUNUSED(event))
{
wxPreviewFrame *frame = (wxPreviewFrame *)GetParent();
frame->Close(TRUE);
}
void wxPreviewControlBar::OnPrint(wxCommandEvent& WXUNUSED(event))
{
wxPrintPreviewBase *preview = GetPrintPreview();
preview->Print(TRUE);
}
void wxPreviewControlBar::OnChar(wxKeyEvent &event)
{
switch(event.KeyCode())
{
case WXK_NEXT:
OnNext(); break;
case WXK_PRIOR:
OnPrevious(); break;
case WXK_HOME:
OnFirst(); break;
case WXK_END:
OnLast(); break;
case WXK_TAB:
OnGoto(); break;
default:
event.Skip();
}
}
void wxPreviewControlBar::OnNext(void)
{
wxPrintPreviewBase *preview = GetPrintPreview();
if (preview)
{
int currentPage = preview->GetCurrentPage();
if ((preview->GetMaxPage() > 0) &&
(currentPage < preview->GetMaxPage()) &&
preview->GetPrintout()->HasPage(currentPage + 1))
{
preview->SetCurrentPage(currentPage + 1);
}
}
}
void wxPreviewControlBar::OnPrevious(void)
{
wxPrintPreviewBase *preview = GetPrintPreview();
if (preview)
{
int currentPage = preview->GetCurrentPage();
if ((preview->GetMinPage() > 0) &&
(currentPage > preview->GetMinPage()) &&
preview->GetPrintout()->HasPage(currentPage - 1))
{
preview->SetCurrentPage(currentPage - 1);
}
}
}
void wxPreviewControlBar::OnFirst(void)
{
wxPrintPreviewBase *preview = GetPrintPreview();
if (preview)
{
int currentPage = preview->GetMinPage();
if (preview->GetPrintout()->HasPage(currentPage))
{
preview->SetCurrentPage(currentPage);
}
}
}
void wxPreviewControlBar::OnLast(void)
{
wxPrintPreviewBase *preview = GetPrintPreview();
if (preview)
{
int currentPage = preview->GetMaxPage();
if (preview->GetPrintout()->HasPage(currentPage))
{
preview->SetCurrentPage(currentPage);
}
}
}
void wxPreviewControlBar::OnGoto(void)
{
wxPrintPreviewBase *preview = GetPrintPreview();
if (preview)
{
long currentPage;
if (preview->GetMinPage() > 0)
{
wxString strPrompt;
wxString strPage;
strPrompt.Printf( _("%d...%d"),
preview->GetMinPage(), preview->GetMaxPage());
strPage.Printf( _("%d"), preview->GetCurrentPage() );
strPage =
wxGetTextFromUser( strPrompt, _("Goto Page"), strPage);
if ( strPage.ToLong( ¤tPage ) )
if (preview->GetPrintout()->HasPage(currentPage))
{
preview->SetCurrentPage(currentPage);
}
}
}
}
void wxPreviewControlBar::OnZoom(wxCommandEvent& WXUNUSED(event))
{
int zoom = GetZoomControl();
if (GetPrintPreview())
GetPrintPreview()->SetZoom(zoom);
}
void wxPreviewControlBar::CreateButtons()
{
SetSize(0, 0, 400, 40);
/*
#ifdef __WXMSW__
int fontSize = 9;
#else
int fontSize = 10;
#endif
wxFont buttonFont(fontSize, wxSWISS, wxNORMAL, wxBOLD);
SetFont(buttonFont);
*/
int buttonWidth = 60;
int buttonNavigation = 30;
#ifdef __WXGTK__
int buttonHeight = -1;
#else
int buttonHeight = 24;
#endif
int x = 5;
int y = 5;
#ifdef __WXMOTIF__
int gap = 15;
#else
int gap = 5;
#endif
m_closeButton = new wxButton(this, wxID_PREVIEW_CLOSE, _("Close"),
wxPoint(x, y), wxSize(buttonWidth, buttonHeight));
x += gap + buttonWidth;
if (m_buttonFlags & wxPREVIEW_PRINT)
{
m_printButton = new wxButton(this, wxID_PREVIEW_PRINT, _("Print..."), wxPoint(x, y),
wxSize(buttonWidth, buttonHeight));
x += gap + buttonWidth;
}
if (m_buttonFlags & wxPREVIEW_FIRST)
{
m_firstPageButton = new wxButton(this, wxID_PREVIEW_FIRST, wxT("|<<"), wxPoint(x, y),
wxSize(buttonNavigation, buttonHeight));
x += gap + buttonNavigation;
}
if (m_buttonFlags & wxPREVIEW_PREVIOUS)
{
m_previousPageButton = new wxButton(this, wxID_PREVIEW_PREVIOUS, wxT("<<"), wxPoint(x, y),
wxSize(buttonNavigation, buttonHeight));
x += gap + buttonNavigation;
}
if (m_buttonFlags & wxPREVIEW_NEXT)
{
m_nextPageButton = new wxButton(this, wxID_PREVIEW_NEXT, wxT(">>"),
wxPoint(x, y), wxSize(buttonNavigation, buttonHeight));
x += gap + buttonNavigation;
}
if (m_buttonFlags & wxPREVIEW_LAST)
{
m_lastPageButton = new wxButton(this, wxID_PREVIEW_LAST, wxT(">>|"), wxPoint(x, y),
wxSize(buttonNavigation, buttonHeight));
x += gap + buttonNavigation;
}
if (m_buttonFlags & wxPREVIEW_GOTO)
{
m_gotoPageButton = new wxButton(this, wxID_PREVIEW_GOTO, wxT("Goto..."), wxPoint(x, y),
wxSize(buttonWidth, buttonHeight));
x += gap + buttonWidth;
}
if (m_buttonFlags & wxPREVIEW_ZOOM)
{
static const char *choices[] =
{
"10%", "15%", "20%", "25%", "30%", "35%", "40%", "45%", "50%", "55%",
"60%", "65%", "70%", "75%", "80%", "85%", "90%", "95%", "100%", "110%",
"120%", "150%", "200%"
};
int n = WXSIZEOF(choices);
wxString* strings = new wxString[n];
int i;
for (i = 0; i < n; i++ )
strings[i] = choices[i];
m_zoomControl = new wxChoice(this, wxID_PREVIEW_ZOOM,
wxPoint(x, y),
wxSize(100, -1),
n,
strings
);
delete[] strings;
SetZoomControl(m_printPreview->GetZoom());
}
// m_closeButton->SetDefault();
}
void wxPreviewControlBar::SetZoomControl(int zoom)
{
char buf[20];
sprintf(buf, "%d%%", zoom);
// Someone is calling methods that do no exist in wxChoice!! So I'll just comment out for VA for now
if (m_zoomControl)
m_zoomControl->SetStringSelection(buf);
}
int wxPreviewControlBar::GetZoomControl()
{
wxChar buf[20];
if (m_zoomControl && (m_zoomControl->GetStringSelection() != wxT("")))
{
wxStrcpy(buf, m_zoomControl->GetStringSelection());
buf[wxStrlen(buf) - 1] = 0;
return (int)wxAtoi(buf);
}
else return 0;
}
/*
* Preview frame
*/
BEGIN_EVENT_TABLE(wxPreviewFrame, wxFrame)
EVT_CLOSE(wxPreviewFrame::OnCloseWindow)
END_EVENT_TABLE()
wxPreviewFrame::wxPreviewFrame(wxPrintPreviewBase *preview, wxFrame *parent, const wxString& title,
const wxPoint& pos, const wxSize& size, long style, const wxString& name):
wxFrame(parent, -1, title, pos, size, style, name)
{
m_printPreview = preview;
m_controlBar = NULL;
m_previewCanvas = NULL;
}
wxPreviewFrame::~wxPreviewFrame()
{
}
void wxPreviewFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
{
MakeModal(FALSE);
// Need to delete the printout and the print preview
wxPrintout *printout = m_printPreview->GetPrintout();
if (printout)
{
delete printout;
m_printPreview->SetPrintout(NULL);
m_printPreview->SetCanvas(NULL);
m_printPreview->SetFrame(NULL);
}
delete m_printPreview;
Destroy();
}
void wxPreviewFrame::Initialize()
{
CreateStatusBar();
CreateCanvas();
CreateControlBar();
m_printPreview->SetCanvas(m_previewCanvas);
m_printPreview->SetFrame(this);
// Set layout constraints here
// Control bar constraints
wxLayoutConstraints *c1 = new wxLayoutConstraints;
// int w, h;
// m_controlBar->GetSize(&w, &h);
int h;
#if (defined(__WXMSW__) || defined(__WXGTK__))
h = 40;
#else
h = 60;
#endif
c1->left.SameAs (this, wxLeft);
c1->top.SameAs (this, wxTop);
c1->right.SameAs (this, wxRight);
c1->height.Absolute (h);
m_controlBar->SetConstraints(c1);
// Canvas constraints
wxLayoutConstraints *c2 = new wxLayoutConstraints;
c2->left.SameAs (this, wxLeft);
c2->top.Below (m_controlBar);
c2->right.SameAs (this, wxRight);
c2->bottom.SameAs (this, wxBottom);
m_previewCanvas->SetConstraints(c2);
SetAutoLayout(TRUE);
MakeModal(TRUE);
Layout();
}
void wxPreviewFrame::CreateCanvas()
{
m_previewCanvas = new wxPreviewCanvas(m_printPreview, this);
}
void wxPreviewFrame::CreateControlBar()
{
long buttons = wxPREVIEW_DEFAULT;
if (m_printPreview->GetPrintoutForPrinting())
buttons |= wxPREVIEW_PRINT;
m_controlBar = new wxPreviewControlBar(m_printPreview, buttons, this, wxPoint(0, 0), wxSize(400, 40));
m_controlBar->CreateButtons();
}
/*
* Print preview
*/
wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout,
wxPrintout *printoutForPrinting,
wxPrintData *data)
{
if (data)
m_printDialogData = (*data);
Init(printout, printoutForPrinting);
}
wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout,
wxPrintout *printoutForPrinting,
wxPrintDialogData *data)
{
if (data)
m_printDialogData = (*data);
Init(printout, printoutForPrinting);
}
void wxPrintPreviewBase::Init(wxPrintout *printout,
wxPrintout *printoutForPrinting)
{
m_isOk = TRUE;
m_previewPrintout = printout;
if (m_previewPrintout)
m_previewPrintout->SetIsPreview(TRUE);
m_printPrintout = printoutForPrinting;
m_previewCanvas = NULL;
m_previewFrame = NULL;
m_previewBitmap = NULL;
m_currentPage = 1;
m_currentZoom = 70;
m_topMargin = 40;
m_leftMargin = 40;
m_pageWidth = 0;
m_pageHeight = 0;
m_printingPrepared = FALSE;
// Too soon! Moved to RenderPage.
// printout->OnPreparePrinting();
// Get some parameters from the printout, if defined
int selFrom, selTo;
printout->GetPageInfo(&m_minPage, &m_maxPage, &selFrom, &selTo);
}
wxPrintPreviewBase::~wxPrintPreviewBase()
{
if (m_previewPrintout)
delete m_previewPrintout;
if (m_previewBitmap)
delete m_previewBitmap;
if (m_printPrintout)
delete m_printPrintout;
}
bool wxPrintPreviewBase::SetCurrentPage(int pageNum)
{
if (m_currentPage == pageNum)
return TRUE;
m_currentPage = pageNum;
if (m_previewBitmap)
{
delete m_previewBitmap;
m_previewBitmap = NULL;
}
if (m_previewCanvas)
{
if (!RenderPage(pageNum))
return FALSE;
m_previewCanvas->Refresh();
}
return TRUE;
}
bool wxPrintPreviewBase::PaintPage(wxWindow *canvas, wxDC& dc)
{
DrawBlankPage(canvas, dc);
if (!m_previewBitmap)
if (!RenderPage(m_currentPage))
return FALSE;
if (!m_previewBitmap)
return FALSE;
if (!canvas)
return FALSE;
int canvasWidth, canvasHeight;
canvas->GetSize(&canvasWidth, &canvasHeight);
double zoomScale = ((float)m_currentZoom/(float)100);
double actualWidth = (zoomScale*m_pageWidth*m_previewScale);
// float actualHeight = (float)(zoomScale*m_pageHeight*m_previewScale);
int x = (int) ((canvasWidth - actualWidth)/2.0);
if (x < m_leftMargin)
x = m_leftMargin;
int y = m_topMargin;
wxMemoryDC temp_dc;
temp_dc.SelectObject(*m_previewBitmap);
dc.Blit(x, y, m_previewBitmap->GetWidth(), m_previewBitmap->GetHeight(), &temp_dc, 0, 0);
temp_dc.SelectObject(wxNullBitmap);
return TRUE;
}
bool wxPrintPreviewBase::RenderPage(int pageNum)
{
wxBusyCursor busy;
int canvasWidth, canvasHeight;
if (!m_previewCanvas)
{
wxFAIL_MSG(_T("wxPrintPreviewBase::RenderPage: must use wxPrintPreviewBase::SetCanvas to let me know about the canvas!"));
return FALSE;
}
m_previewCanvas->GetSize(&canvasWidth, &canvasHeight);
double zoomScale = (m_currentZoom/100.0);
int actualWidth = (int)(zoomScale*m_pageWidth*m_previewScale);
int actualHeight = (int)(zoomScale*m_pageHeight*m_previewScale);
int x = (int)((canvasWidth - actualWidth)/2.0);
if (x < m_leftMargin)
x = m_leftMargin;
// int y = m_topMargin;
if (!m_previewBitmap)
{
m_previewBitmap = new wxBitmap((int)actualWidth, (int)actualHeight);
if (!m_previewBitmap || !m_previewBitmap->Ok())
{
if (m_previewBitmap) {
delete m_previewBitmap;
m_previewBitmap = NULL;
}
wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
return FALSE;
}
}
wxMemoryDC memoryDC;
memoryDC.SelectObject(*m_previewBitmap);
memoryDC.Clear();
m_previewPrintout->SetDC(&memoryDC);
m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
// Need to delay OnPreparePrinting until here, so we have enough information.
if (!m_printingPrepared)
{
m_previewPrintout->OnPreparePrinting();
m_printingPrepared = TRUE;
}
m_previewPrintout->OnBeginPrinting();
if (!m_previewPrintout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
{
wxMessageBox(_("Could not start document preview."), _("Print Preview Failure"), wxOK);
memoryDC.SelectObject(wxNullBitmap);
delete m_previewBitmap;
m_previewBitmap = NULL;
return FALSE;
}
m_previewPrintout->OnPrintPage(pageNum);
m_previewPrintout->OnEndDocument();
m_previewPrintout->OnEndPrinting();
m_previewPrintout->SetDC(NULL);
memoryDC.SelectObject(wxNullBitmap);
wxChar buf[200];
if (m_maxPage != 0)
wxSprintf(buf, _("Page %d of %d"), pageNum, m_maxPage);
else
wxSprintf(buf, _("Page %d"), pageNum);
if (m_previewFrame)
m_previewFrame->SetStatusText(buf);
return TRUE;
}
bool wxPrintPreviewBase::DrawBlankPage(wxWindow *canvas, wxDC& dc)
{
int canvasWidth, canvasHeight;
canvas->GetSize(&canvasWidth, &canvasHeight);
float zoomScale = (float)((float)m_currentZoom/(float)100);
float actualWidth = zoomScale*m_pageWidth*m_previewScale;
float actualHeight = zoomScale*m_pageHeight*m_previewScale;
float x = (float)((canvasWidth - actualWidth)/2.0);
if (x < m_leftMargin)
x = (float)m_leftMargin;
float y = (float)m_topMargin;
// Draw shadow, allowing for 1-pixel border AROUND the actual page
int shadowOffset = 4;
dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxBLACK_BRUSH);
/*
dc.DrawRectangle((int)(x-1 + shadowOffset), (int)(y-1 + shadowOffset), (int)(actualWidth+2), (int)(actualHeight+2));
*/
dc.DrawRectangle((int)(x + shadowOffset), (int)(y + actualHeight+1), (int)(actualWidth), shadowOffset);
dc.DrawRectangle((int)(x + actualWidth), (int)(y + shadowOffset), shadowOffset, (int)(actualHeight));
// Draw blank page allowing for 1-pixel border AROUND the actual page
dc.SetPen(*wxBLACK_PEN);
dc.SetBrush(*wxWHITE_BRUSH);
/*
wxRegion update_region = canvas->GetUpdateRegion();
wxRect r = update_region.GetBox();
printf( "x: %d y: %d w: %d h: %d.\n", (int)r.x, (int)r.y, (int)r.width, (int)r.height );
*/
dc.DrawRectangle((int)(x-2), (int)(y-1), (int)(actualWidth+3), (int)(actualHeight+2));
return TRUE;
}
void wxPrintPreviewBase::SetZoom(int percent)
{
if (m_currentZoom == percent)
return;
m_currentZoom = percent;
if (m_previewBitmap)
{
delete m_previewBitmap;
m_previewBitmap = NULL;
}
if (m_previewCanvas)
{
RenderPage(m_currentPage);
((wxScrolledWindow *) m_previewCanvas)->Scroll(0, 0);
m_previewCanvas->Clear();
m_previewCanvas->Refresh();
}
}
#endif // wxUSE_PRINTING_ARCHITECTURE