gnuplot/src/win/wprinter.c at master · gnuplot/gnuplot · GitHub

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/* GNUPLOT - win/wprinter.c */

/*[

* Permission to use, copy, and distribute this software and its

* documentation for any purpose with or without fee is hereby granted,

* provided that the above copyright notice appear in all copies and

* that both that copyright notice and this permission notice appear

* in supporting documentation.

* Permission to modify the software is granted, but not the right to

* distribute the complete modified source code. Modifications are to

* be distributed as patches to the released version. Permission to

* distribute binaries produced by compiling modified sources is granted,

* provided you

* 1. distribute the corresponding source modifications from the

* released version in the form of a patch file along with the binaries,

* 2. add special version identification to distinguish your version

* in addition to the base release version number,

* 3. provide your name and address as the primary contact for the

* support of your modified version, and

* 4. retain our contact information in regard to use of the base

* software.

* Permission to distribute the released version of the source code along

* with corresponding source modifications in the form of a patch file is

* granted with same provisions 2 through 4 for binary distributions.

* This software is provided "as is" without express or implied warranty

* to the extent permitted by applicable law.

]*/

* AUTHORS

* Maurice Castro

* Russell Lang

/* Dump a file to the printer */

#include "syscfg.h"

#define STRICT

#include <initguid.h>

#include <windows.h>

#include <windowsx.h>

#include <unknwn.h>

#include <commdlg.h>

#include <commctrl.h>

#include <ocidl.h>

#include <stdio.h>

#include <stdlib.h>

#include <stddef.h>

#include <tchar.h>

#include "wgnuplib.h"

#include "wresourc.h"

#include "wcommon.h"

static GP_LPPRINT prlist = NULL;

HGLOBAL hDevNames = NULL;

HGLOBAL hDevMode = NULL;

static GP_LPPRINT PrintFind(HDC hdc);

/* COM object for PrintDlgEx callbacks, implemented in C

typedef struct {

IPrintDialogCallback callback;

IObjectWithSite site;

IUnknown * pUnkSite_;

IPrintDialogServices * services_;

GP_LPPRINT lpr_;

} PrintingCallbackHandler;

// IUnknown

HRESULT STDMETHODCALLTYPE

QueryInterface(IPrintDialogCallback * This, REFIID riid, void ** object)

{

if (IsEqualIID(riid, &IID_IUnknown)) {

*object = (void *) This;

} else if (IsEqualIID(riid, &IID_IPrintDialogCallback)) {

*object = (void *) &((PrintingCallbackHandler *)This)->callback;

} else if (IsEqualIID(riid, &IID_IObjectWithSite)) {

*object = (void *) &((PrintingCallbackHandler *)This)->site;

} else {

return E_NOINTERFACE;

}

return S_OK;

}

static ULONG STDMETHODCALLTYPE

AddRef(IPrintDialogCallback * This)

{

return 1;

}

static ULONG STDMETHODCALLTYPE

Release(IPrintDialogCallback * This)

{

return 1;

}

// IPrintDialogCallback

static HRESULT STDMETHODCALLTYPE

InitDone(IPrintDialogCallback * This)

{

/* the general page is initialised, but not shown yet */

PrintingCallbackHandler * Base = (PrintingCallbackHandler *) ((char *) This - offsetof(PrintingCallbackHandler, callback));

#if 0

IPrintDialogServices * services = Base->services_;

if (services != NULL) {

}

#endif

Base->lpr_->bDriverChanged = TRUE;

/* always return false to enable default actions */

return S_FALSE;

}

static HRESULT STDMETHODCALLTYPE

SelectionChange(IPrintDialogCallback * This)

{

/* the user has selected a different printer */

PrintingCallbackHandler * Base = (PrintingCallbackHandler *) ((char *) This - offsetof(PrintingCallbackHandler, callback));

#if 0

IPrintDialogServices * services = Base->services_;

if (services != NULL) {

}

#endif

Base->lpr_->bDriverChanged = TRUE;

/* always return false to enable default actions */

return S_FALSE;

}

static HRESULT STDMETHODCALLTYPE

HandleMessage(IPrintDialogCallback * This, HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT * pResult)

{

// WM_INITDIALOG: lParam points to PRINTDLGEX struct

/* enable default message handling */

return S_FALSE;

}

static HRESULT STDMETHODCALLTYPE

SetSite(IObjectWithSite * This, IUnknown * pUnkSite)

{

PrintingCallbackHandler * Base = (PrintingCallbackHandler *) ((char *) This - offsetof(PrintingCallbackHandler, site));

if (Base->pUnkSite_ != NULL) {

Base->pUnkSite_->lpVtbl->Release(Base->pUnkSite_);

Base->pUnkSite_ = NULL;

}

if (pUnkSite == NULL) {

if (Base->services_ != NULL) {

Base->services_->lpVtbl->Release(Base->services_);

Base->services_ = NULL;

}

} else {

Base->pUnkSite_ = pUnkSite;

pUnkSite->lpVtbl->AddRef(pUnkSite);

if (Base->services_ == NULL) {

pUnkSite->lpVtbl->QueryInterface(pUnkSite, &IID_IPrintDialogServices, (void **) &(Base->services_));

Base->lpr_->services = Base->services_;

}

return S_OK;

}

static HRESULT STDMETHODCALLTYPE

GetSite(IObjectWithSite * This, REFIID riid, void ** ppvSite)

{

/* according to documentation this _must_ be implemented */

PrintingCallbackHandler * Base = (PrintingCallbackHandler *) ((char *) This - offsetof(PrintingCallbackHandler, site));

*ppvSite = Base->pUnkSite_;

return (Base->pUnkSite_ != NULL) ? S_OK : E_FAIL;

}

static IPrintDialogCallbackVtbl IPrintDialogCallback_Vtbl = {

QueryInterface, AddRef, Release, InitDone, SelectionChange, HandleMessage

};

static IObjectWithSiteVtbl IObjectWithSite_Vtbl = {

(HRESULT(STDMETHODCALLTYPE *)(IObjectWithSite *, const IID *const, void **)) QueryInterface,

(ULONG (STDMETHODCALLTYPE *)(IObjectWithSite *)) AddRef,

(ULONG (STDMETHODCALLTYPE *)(IObjectWithSite *)) Release,

SetSite,

GetSite

};

static void

PrintingCallbackInit(PrintingCallbackHandler * This, GP_LPPRINT lpr)

{

memset(This, 0, sizeof(PrintingCallbackHandler));

This->callback.lpVtbl = &IPrintDialogCallback_Vtbl;

This->site.lpVtbl = &IObjectWithSite_Vtbl;

This->lpr_ = lpr;

}

static void

PrintingCallbackFini(PrintingCallbackHandler * This)

{

if (This->services_ != NULL)

This->services_->lpVtbl->Release(This->services_);

}

void *

PrintingCallbackCreate(GP_LPPRINT lpr)

{

PrintingCallbackHandler * callback = (PrintingCallbackHandler *) malloc(sizeof(PrintingCallbackHandler));

/* initialize COM object for the printing dialog callback */

PrintingCallbackInit(callback, lpr);

return callback;

}

void

PrintingCallbackFree(void * callback)

{

PrintingCallbackFini((PrintingCallbackHandler *) callback);

free(callback);

}

void PrintingCleanup(void)

{

if (hDevNames) GlobalFree(hDevNames);

if (hDevMode) GlobalFree(hDevMode);

}

INT_PTR CALLBACK

PrintSizeDlgProc(HWND hdlg, UINT wmsg, WPARAM wparam, LPARAM lparam)

{

TCHAR buf[8];

HWND hPropSheetDlg = GetParent(hdlg);

GP_LPPRINT lpr = (GP_LPPRINT) GetWindowLongPtr(hdlg, GWLP_USERDATA);

switch (wmsg) {

case WM_INITDIALOG:

lpr = (GP_LPPRINT) ((PROPSHEETPAGE *) lparam)->lParam;

SetWindowLongPtr(hdlg, GWLP_USERDATA, (LONG_PTR) lpr);

wsprintf(buf, TEXT("%d"), lpr->pdef.x);

SetDlgItemText(hdlg, PSIZE_DEFX, buf);

wsprintf(buf, TEXT("%d"), lpr->pdef.y);

SetDlgItemText(hdlg, PSIZE_DEFY, buf);

wsprintf(buf, TEXT("%d"), lpr->poff.x);

SetDlgItemText(hdlg, PSIZE_OFFX, buf);

wsprintf(buf, TEXT("%d"), lpr->poff.y);

SetDlgItemText(hdlg, PSIZE_OFFY, buf);

wsprintf(buf, TEXT("%d"), lpr->psize.x);

SetDlgItemText(hdlg, PSIZE_X, buf);

wsprintf(buf, TEXT("%d"), lpr->psize.y);

SetDlgItemText(hdlg, PSIZE_Y, buf);

CheckDlgButton(hdlg, PSIZE_DEF, TRUE);

EnableWindow(GetDlgItem(hdlg, PSIZE_X), FALSE);

EnableWindow(GetDlgItem(hdlg, PSIZE_Y), FALSE);

return TRUE;

case WM_COMMAND:

switch (LOWORD(wparam)) {

case PSIZE_DEF:

if (HIWORD(wparam) == BN_CLICKED) {

EnableWindow(GetDlgItem(hdlg, PSIZE_X), FALSE);

EnableWindow(GetDlgItem(hdlg, PSIZE_Y), FALSE);

PropSheet_Changed(hPropSheetDlg, hdlg);

}

return FALSE;

case PSIZE_OTHER:

if (HIWORD(wparam) == BN_CLICKED) {

EnableWindow(GetDlgItem(hdlg, PSIZE_X), TRUE);

EnableWindow(GetDlgItem(hdlg, PSIZE_Y), TRUE);

PropSheet_Changed(hPropSheetDlg, hdlg);

}

return FALSE;

case PSIZE_X:

case PSIZE_Y:

case PSIZE_OFFX:

case PSIZE_OFFY:

if (HIWORD(wparam) == EN_UPDATE)

PropSheet_Changed(hPropSheetDlg, hdlg);

return FALSE;

} /* switch (wparam) */

break;

case WM_NOTIFY:

switch (((LPNMHDR) lparam)->code) {

case PSN_APPLY: /* apply changes */

/* FIXME: Need to check for valid input.

if (SendDlgItemMessage(hdlg, PSIZE_OTHER, BM_GETCHECK, 0, 0L)) {

SendDlgItemMessage(hdlg, PSIZE_X, WM_GETTEXT, 7, (LPARAM) buf);

GetInt(buf, (LPINT)&lpr->psize.x);

SendDlgItemMessage(hdlg, PSIZE_Y, WM_GETTEXT, 7, (LPARAM) buf);

GetInt(buf, (LPINT)&lpr->psize.y);

} else {

lpr->psize.x = lpr->pdef.x;

lpr->psize.y = lpr->pdef.y;

}

SendDlgItemMessage(hdlg, PSIZE_OFFX, WM_GETTEXT, 7, (LPARAM) buf);

GetInt(buf, (LPINT)&lpr->poff.x);

SendDlgItemMessage(hdlg, PSIZE_OFFY, WM_GETTEXT, 7, (LPARAM) buf);

GetInt(buf, (LPINT)&lpr->poff.y);

if (lpr->psize.x <= 0)

lpr->psize.x = lpr->pdef.x;

if (lpr->psize.y <= 0)

lpr->psize.y = lpr->pdef.y;

PropSheet_UnChanged(hPropSheetDlg, hdlg);

SetWindowLongPtr(hdlg, DWLP_MSGRESULT, PSNRET_NOERROR);

return TRUE;

}

case PSN_SETACTIVE: /* display: initialize according to printer */

if (lpr->psize.x < 0 || lpr->bDriverChanged) {

/* FIXME: also if settings changed (paper size, orientation) */

IPrintDialogServices * services = (IPrintDialogServices *) lpr->services;

/* Set size to full paper size of current printer */

if (services) {

LPTSTR lpPrinterName = NULL;

LPTSTR lpPortName = NULL;

LPDEVMODE lpDevMode = NULL;

UINT size;

HRESULT hr;

/* Note: The Windows 8.1 SDK says that these functions expect LPWSTR

arguments, in contrast to the MSDN documentation, MinGW, and

what was actually seen in a debugger on Windows 10.

So warnings about type mismatch can be safely ignored.

size = 0;

hr = services->lpVtbl->GetCurrentPrinterName(services, NULL, &size);

if (SUCCEEDED(hr) && size > 0) {

lpPrinterName = (LPTSTR) malloc(size * sizeof(TCHAR));

hr = services->lpVtbl->GetCurrentPrinterName(services, lpPrinterName, &size);

}

size = 0;

hr = services->lpVtbl->GetCurrentPortName(services, NULL, &size);

if (SUCCEEDED(hr) && size > 0) {

lpPortName = (LPTSTR) malloc(size * sizeof(TCHAR));

hr = services->lpVtbl->GetCurrentPortName(services, lpPortName, &size);

}

size = 0;

hr = services->lpVtbl->GetCurrentDevMode(services, NULL, &size);

if (SUCCEEDED(hr) && size > 0) {

lpDevMode = (LPDEVMODE) malloc(size * sizeof(TCHAR));

hr = services->lpVtbl->GetCurrentDevMode(services, lpDevMode, &size);

}

if (SUCCEEDED(hr) && size > 0 && lpPortName != NULL && lpPrinterName != NULL) {

HDC printer = CreateDC(TEXT("WINSPOOL"), lpPrinterName, lpPortName, lpDevMode);

lpr->psize.x = GetDeviceCaps(printer, HORZSIZE);

lpr->psize.y = GetDeviceCaps(printer, VERTSIZE);

DeleteDC(printer);

}

free(lpPrinterName);

free(lpPortName);

free(lpDevMode);

}

if (lpr->psize.x < 0) {

/* something went wrong */

lpr->psize.x = lpr->pdef.x;

lpr->psize.y = lpr->pdef.y;

}

/* apply changes */

wsprintf(buf, TEXT("%d"), lpr->psize.x);

SetDlgItemText(hdlg, PSIZE_X, buf);

wsprintf(buf, TEXT("%d"), lpr->psize.y);

SetDlgItemText(hdlg, PSIZE_Y, buf);

lpr->bDriverChanged = FALSE;

SetWindowLongPtr(hdlg, DWLP_MSGRESULT, 0); /* accept activation */

return TRUE;

break;

} /* switch (msg) */

return FALSE;

}

/* Win32 doesn't support OpenJob() etc. so we must use some old code

* which attempts to sneak the output through a Windows printer driver */

void

PrintRegister(GP_LPPRINT lpr)

{

GP_LPPRINT next;

next = prlist;

prlist = lpr;

lpr->next = next;

}

static GP_LPPRINT

PrintFind(HDC hdc)

{

GP_LPPRINT current;

current = prlist;

while (current && (current->hdcPrn != hdc)) {

current = current->next;

}

return current;

}

void

PrintUnregister(GP_LPPRINT lpr)

{

GP_LPPRINT prev = NULL;

GP_LPPRINT current = prlist;

while (current && (current != lpr)) {

prev = current;

current = current->next;

}

if (current && (current == lpr)) {

/* unhook it */

if (prev)

prev->next = current->next;

else

prlist = current->next;

}

INT_PTR CALLBACK

PrintDlgProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)

{

GP_LPPRINT lpr;

lpr = (GP_LPPRINT) GetWindowLongPtr(hDlg, GWLP_USERDATA);

switch (message) {

case WM_INITDIALOG:

lpr = (GP_LPPRINT) lParam;

lpr->hDlgPrint = hDlg;

SetWindowLongPtr(hDlg, GWLP_USERDATA, (LONG_PTR) lpr);

SetWindowText(hDlg, lpr->szTitle);

EnableMenuItem(GetSystemMenu(hDlg, FALSE), SC_CLOSE, MF_GRAYED);

SetFocus(GetDlgItem(hDlg, IDCANCEL));

return TRUE;

case WM_COMMAND:

lpr->bUserAbort = TRUE;

lpr->hDlgPrint = 0;

EnableWindow(GetParent(hDlg), TRUE);

EndDialog(hDlg, FALSE);

return TRUE;

}

return FALSE;

}

BOOL CALLBACK

PrintAbortProc(HDC hdcPrn, int code)

{

MSG msg;

GP_LPPRINT lpr = PrintFind(hdcPrn);

while (!lpr->bUserAbort && PeekMessage(&msg, 0, 0, 0, PM_REMOVE)) {

if (!lpr->hDlgPrint || !IsDialogMessage(lpr->hDlgPrint, &msg)) {

TranslateMessage(&msg);

DispatchMessage(&msg);

}

return !lpr->bUserAbort;

}

void

DumpPrinter(HWND hwnd, LPTSTR szAppName, LPTSTR szFileName)

{

PRINTDLGEX pd;

DEVNAMES * pDevNames;

LPCTSTR szDevice;

GP_PRINT pr;

HANDLE printer;

DOC_INFO_1 di;

DWORD jobid;

HRESULT hr;

LPSTR buf;

int count;

FILE *f;

long lsize;

long ldone;

TCHAR pcdone[10];

if ((f = _tfopen(szFileName, TEXT("rb"))) == NULL)

return;

fseek(f, 0L, SEEK_END);

lsize = ftell(f);

if (lsize <= 0)

lsize = 1;

fseek(f, 0L, SEEK_SET);

ldone = 0;

/* Print Property Sheet */

/* See http://support.microsoft.com/kb/240082 */

memset(&pd, 0, sizeof(pd));

pd.lStructSize = sizeof(pd);

pd.hwndOwner = hwnd;

pd.Flags = PD_NOPAGENUMS | PD_NOSELECTION | PD_NOCURRENTPAGE | PD_USEDEVMODECOPIESANDCOLLATE;

pd.hDevNames = hDevNames;

pd.hDevMode = hDevMode;

pd.hDevNames = NULL;

pd.hDevMode = NULL;

pd.nCopies = 1;

pd.nStartPage = START_PAGE_GENERAL;

/* Replace the additional options in the lower part of the dialog with

* a hint to change print options via terminal options.

pd.lpPrintTemplateName = TEXT("PrintDlgExSelect");

pd.hInstance = graphwin->hInstance;

pd.Flags |= PD_ENABLEPRINTTEMPLATE;

if ((hr = PrintDlgEx(&pd)) != S_OK) {

DWORD error = CommDlgExtendedError();

fprintf(stderr, "\nError: Opening the print dialog failed with error code %04x (%04x).\n", hr, error);

}

if (pd.dwResultAction == PD_RESULT_PRINT) {

pDevNames = (DEVNAMES *) GlobalLock(pd.hDevNames);

szDevice = (LPCTSTR)pDevNames + pDevNames->wDeviceOffset;

if (!OpenPrinter((LPTSTR)szDevice, &printer, NULL))

printer = NULL;

GlobalUnlock(pd.hDevNames);

/* We no longer free these structures, but preserve them for the next time

GlobalFree(pd.hDevMode);

GlobalFree(pd.hDevNames);

hDevNames = pd.hDevNames;

hDevMode = pd.hDevMode;

if (printer == NULL)

return; /* abort */

pr.hdcPrn = printer;

PrintRegister(&pr);

if ((buf = (LPSTR) malloc(4096)) != NULL) {

EnableWindow(hwnd, FALSE);

pr.bUserAbort = FALSE;

pr.szTitle = szAppName;

pr.hDlgPrint = CreateDialogParam(hdllInstance, TEXT("CancelDlgBox"),

hwnd, PrintDlgProc, (LPARAM) &pr);

SendMessage(GetDlgItem(pr.hDlgPrint, CANCEL_PROGRESS), PBM_SETRANGE32, 0, lsize);

di.pDocName = szAppName;

di.pOutputFile = NULL;

di.pDatatype = TEXT("RAW");

if ((jobid = StartDocPrinter(printer, 1, (LPBYTE) &di)) > 0) {

while (pr.hDlgPrint && !pr.bUserAbort &&

(count = fread(buf, 1, 4096, f)) != 0 ) {

int ret;

DWORD dwBytesWritten;

ret = WritePrinter(printer, buf, count, &dwBytesWritten);

ldone += count;

if (dwBytesWritten > 0) {

wsprintf(pcdone, TEXT("%d%% done"), (int)(ldone * 100 / lsize));

SetWindowText(GetDlgItem(pr.hDlgPrint, CANCEL_PCDONE), pcdone);

SendMessage(GetDlgItem(pr.hDlgPrint, CANCEL_PROGRESS), PBM_SETPOS, ldone, 0);

} else if (ret == 0) {

SetWindowText(GetDlgItem(pr.hDlgPrint, CANCEL_PCDONE), TEXT("Error writing to printer!"));

pr.bUserAbort = TRUE;

}

/* handle window messages */

PrintAbortProc(printer, 0);

}

if (pr.bUserAbort) {

if (SetJob(printer, jobid, 0, NULL, JOB_CONTROL_DELETE) == 0) {

SetWindowText(GetDlgItem(pr.hDlgPrint, CANCEL_PCDONE), TEXT("Error: Failed to cancel print job!"));

fprintf(stderr, "Error: Failed to cancel print job!\n");

}

EndDocPrinter(printer);

if (!pr.bUserAbort) {

EnableWindow(hwnd, TRUE);

DestroyWindow(pr.hDlgPrint);

}

free(buf);

}

ClosePrinter(printer);

PrintUnregister(&pr);

}

fclose(f);

}

gnuplot/src/win/wprinter.c at master · gnuplot/gnuplot · GitHub

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