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APXPRINT.CPP
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C/C++ Source or Header
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1997-05-06
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163 lines
//----------------------------------------------------------------------------
// Project ApxSdi
// Borland International
// Copyright ⌐ 1996. All Rights Reserved.
//
// SUBSYSTEM: ApxSdi Application
// FILE: apxprint.cpp
// AUTHOR:
//
// OVERVIEW
// ~~~~~~~~
// Source file for implementation of Printing.
//
//----------------------------------------------------------------------------
#include <owl/pch.h>
#include "apxprint.h"
void TApxPrintout::GetDialogInfo(int& minPage, int& maxPage,
int& selFromPage, int& selToPage)
{
// Calculate the total number of pages in the document. TotalPages is
// initialized in INT_MAX in the event that we cannot determine the
// number for ourselves.
//
TPrintDC* printDC = new TPrintDC( Printer->GetSetup().GetDriverName(),
Printer->GetSetup().GetDeviceName(),
Printer->GetSetup().GetOutputName(),
Printer->GetSetup().GetDevMode() );
TEditFile* efWindow = TYPESAFE_DOWNCAST( Window, TEditFile );
if( printDC && efWindow ) {
TSize pageSize( printDC->GetDeviceCaps(HORZRES),
printDC->GetDeviceCaps(VERTRES) );
TEXTMETRIC tm;
printDC->GetTextMetrics( tm );
int TextHeight = tm.tmHeight + tm.tmInternalLeading;
int LinesPerPage = pageSize.cy / TextHeight;
int TotalLines = efWindow->GetNumLines();
TotalPages = TotalLines / LinesPerPage + 1; //Add one to account for any roundoff.
if(TotalPages <= 0)
TotalPages = 1;
}
delete printDC;
minPage = 1;
maxPage = TotalPages;
selFromPage = 0;
selToPage = 0;
}
void TApxPrintout::BeginPage(TRect& clientR)
{
TScreenDC screenDC;
TSize screenRes(screenDC.GetDeviceCaps(LOGPIXELSX),
screenDC.GetDeviceCaps(LOGPIXELSY));
TSize printRes(DC->GetDeviceCaps(LOGPIXELSX),
DC->GetDeviceCaps(LOGPIXELSY));
// Temporarily change the window size (so any WM_PAINT queries on the total window size (GetClientRect) is
// the window size for the WM_PAINT of the window and the printer page size when Paint is called from
// PrintPage. Notice, we don't use AdjustWindowRect because its harder and not accurate. Instead we
// compute the difference (in pixels) between the client window and the frame window. This difference
// is then added to the clientRect to compute the new frame window size for SetWindowPos.
//
clientR = Window->GetClientRect();
Window->MapWindowPoints(HWND_DESKTOP, (TPoint*)&clientR, 2);
// Compute extra X and Y pixels to bring a client window dimensions to equal the frame window.
//
OrgR = Window->GetWindowRect();
int adjX = OrgR.Width() - clientR.Width();
int adjY = OrgR.Height() - clientR.Height();
// Conditionally scale the DC to the window so the printout will resemble the window.
//
if (Scale) {
clientR = Window->GetClientRect();
PrevMode = DC->SetMapMode(MapMode);
DC->SetViewportExt(PageSize, &OldVExt);
// Scale window to logical page size (assumes left & top are 0)
//
clientR.right = MulDiv(PageSize.cx, screenRes.cx, printRes.cx);
clientR.bottom = MulDiv(PageSize.cy, screenRes.cy, printRes.cy);
DC->SetWindowExt(clientR.Size(), &OldWExt);
}
// Compute the new size of the window based on the printer DC dimensions.
// Resize the window, notice position, order, and redraw are not done the window size changes but the user
// doesn't see any visible change to the window.
//
Window->SetRedraw(false);
Window->SetWindowPos(0, 0, 0, clientR.Width() + adjX, clientR.Height() + adjY,
SWP_NOMOVE | SWP_NOREDRAW | SWP_NOZORDER| SWP_NOACTIVATE);
}
void TApxPrintout::PrintPage(int page, TRect& bandRect, unsigned)
{
TRect clientR;
BeginPage(clientR);
if (Scale)
DC->DPtoLP(bandRect, 2);
// Change the printer range to this current page.
//
TPrintDialog::TData& printerData = Printer->GetSetup();
int fromPg = printerData.FromPage;
int toPg = printerData.ToPage;
printerData.FromPage = page;
printerData.ToPage = page;
// Call the window to paint itself to the printer DC.
//
Window->Paint(*DC, false, bandRect);
printerData.FromPage = fromPg;
printerData.ToPage = toPg;
if (Scale)
DC->LPtoDP(bandRect, 2);
EndPage();
}
void TApxPrintout::EndPage()
{
// Resize to original window size, no one's the wiser.
//
Window->SetWindowPos(0, 0, 0, OrgR.Width(), OrgR.Height(),
SWP_NOMOVE | SWP_NOREDRAW | SWP_NOZORDER| SWP_NOACTIVATE);
Window->SetRedraw(true);
// Restore changes made to the DC
//
if (Scale) {
DC->SetWindowExt(OldWExt);
DC->SetViewportExt(OldVExt);
DC->SetMapMode(PrevMode);
}
}
bool TApxPrintout::HasPage(int pageNumber)
{
TPrintDialog::TData& printerData = Printer->GetSetup();
return pageNumber >= printerData.MinPage && pageNumber <= printerData.MaxPage;
}