blob: 60babccef7ce4dfae934703a0d92a879badd25e1 [file] [log] [blame]
/*
* R : A Computer Language for Statistical Data Analysis
* Copyright (C) 1999, 2000 Guido Masarotto
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, a copy is available at
* https://www.R-project.org/Licenses/
*/
/* Support for printer
* printer newprinter() - return a printer object - to draw to the
* printer use drawto(...) and the drawXXX
* functions + nextpage(printer)
* printers can be deleted by 'del(printer)'
*/
#include "win-nls.h"
#include "internal.h"
#include "rui.h"
/*
* Internal printer deletion function.
*/
static void private_delprinter(printer obj)
{
HDC h = (HDC) obj->handle;
if (!obj || !h || (obj->kind != PrinterObject)) return;
EndPage(h);
EndDoc(h);
DeleteDC(h);
return;
}
/*
* Create/return the base printer object.
*/
static object get_printer_base(void)
{
static object printer_base = NULL;
if (! printer_base)
printer_base = new_object(BaseObject, 0, NULL);
return printer_base;
}
static HDC chooseprinter(void)
{
PRINTDLG pd;
HDC dc;
DWORD rc;
char cwd[MAX_PATH];
GetCurrentDirectory(MAX_PATH,cwd);
pd.lStructSize = sizeof( PRINTDLG );
pd.hwndOwner = NULL;
pd.hDevMode = (HANDLE)NULL;
pd.hDevNames = (HANDLE)NULL;
pd.Flags = PD_RETURNDC | PD_NOSELECTION | PD_NOPAGENUMS |
PD_USEDEVMODECOPIES;
pd.nFromPage = 0;
pd.nToPage = 0;
pd.nMinPage = 0;
pd.nMaxPage = 0;
pd.nCopies = 1;
pd.hInstance = (HINSTANCE)NULL;
pd.lCustData = (LPARAM)0;
pd.lpfnPrintHook = 0;
pd.lpfnSetupHook = 0;
pd.lpPrintTemplateName = (LPCSTR) 0;
pd.lpSetupTemplateName = (LPCSTR) 0;
pd.hPrintTemplate = (HGLOBAL)0;
pd.hSetupTemplate = (HGLOBAL)0;
dc = PrintDlg( &pd ) ? pd.hDC : NULL;
SetCurrentDirectory(cwd);
if (!dc) {
rc = CommDlgExtendedError(); /* 0 means user cancelled */
if (rc) R_ShowMessage(G_("Unable to choose printer"));
}
return dc;
}
printer newprinter(double width, double height, const char *name)
{
DOCINFO docinfo;
printer obj;
HDC hDC;
double dd,AL;
int ww,hh,x0,y0;
if(strlen(name)) {
OSVERSIONINFO verinfo;
verinfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&verinfo);
switch(verinfo.dwPlatformId) {
case VER_PLATFORM_WIN32_NT:
hDC = CreateDC("WINSPOOL", name, NULL, NULL);
default:
hDC = CreateDC(NULL, name, NULL, NULL);
}
} else hDC = chooseprinter();
if ( !hDC ) return NULL;
obj = new_object(PrinterObject, (HANDLE) hDC, get_printer_base());
if ( !obj ) {
R_ShowMessage(G_("Insufficient memory for new printer"));
DeleteDC(hDC);
return NULL;
}
if ((width == 0.0) && (height == 0.0)) {
ww = GetDeviceCaps(hDC, HORZRES);
hh = GetDeviceCaps(hDC, VERTRES);
}
else {
if (width < 0.1) width = 0.1;
if (height < 0.1) height = 0.1;
dd = GetDeviceCaps(hDC, HORZSIZE) / width;
AL = (dd < 1.0) ? dd : 1.0;
dd = GetDeviceCaps(hDC, VERTSIZE) / height;
AL = (dd < AL) ? dd : AL;
ww = (AL * width) * GetDeviceCaps(hDC, LOGPIXELSX) / 25.4;
hh = (AL * height) * GetDeviceCaps(hDC, LOGPIXELSY) / 25.4;
}
x0 = (GetDeviceCaps(hDC, HORZRES) - ww) / 2;
y0 = (GetDeviceCaps(hDC, VERTRES) - hh) / 2;
obj->rect = rect(x0, y0, ww, hh);
obj->depth = GetDeviceCaps(hDC, BITSPIXEL)* GetDeviceCaps(hDC, PLANES);
obj->die = private_delprinter;
obj->drawstate = copydrawstate();
obj->drawstate->dest = obj;
docinfo.cbSize = sizeof(DOCINFO); /* set this size... */
docinfo.lpszDocName = "GraphAppPrintJob";
docinfo.lpszOutput = 0; /* no file output... */
docinfo.lpszDatatype = 0;
docinfo.fwType = 0;
if (StartDoc(hDC, &docinfo) <= 0) {
R_ShowMessage(G_("Unable to start the print job"));
del(obj);
return NULL;
}
StartPage(hDC);
return obj;
}
void nextpage(printer p)
{
if (!p || (p->kind != PrinterObject)) return;
EndPage((HDC) p->handle);
StartPage((HDC) p->handle);
}