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Viewing changes to src/ui/fileutils.c

  • Committer: Bazaar Package Importer
  • Author(s): Otavio Salvador
  • Date: 2003-07-03 20:08:21 UTC
  • Revision ID: james.westby@ubuntu.com-20030703200821-se4xtqx25e5miczi
Tags: upstream-2.20
Import upstream version 2.20

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src/ui/fileutils.c
 
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////////////////////////////////////////////////////////////////////////////////
 
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//
 
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// This file is part of Toolkit for Conceptual Modeling (TCM).
 
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// (c) copyright 1997, Vrije Universiteit Amsterdam.
 
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// Author: Frank Dehne (frank@cs.vu.nl).
 
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//
 
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// TCM is free software; you can redistribute it and/or modify
 
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// it under the terms of the GNU General Public License as published by
 
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// the Free Software Foundation; either version 2 of the License, or
 
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// (at your option) any later version.
 
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//
 
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// TCM is distributed in the hope that it will be useful,
 
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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// GNU General Public License for more details.
 
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//
 
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// You should have received a copy of the GNU General Public License
 
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// along with TCM; if not, write to the Free Software
 
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 
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// 02111-1307, USA.
 
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////////////////////////////////////////////////////////////////////////////////
 
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#include "fileutils.h"
 
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#include "system.h"
 
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#include "util.h"
 
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#include <stdlib.h>
 
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#include <stdio.h>
 
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#include <unistd.h>
 
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#include "questiondialog.h"
 
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#include "printeroptions.h"
 
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#include "application.h"
 
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#include "config.h"
 
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bool FileUtils::Load(Widget widget, const char *file, string *text) {
 
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        FILE *fd;
 
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        char buf[MAXNAME+1];
 
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        if (!System::FileExists(file)) {
 
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                sprintf(buf, "File %s does not exist", file);
 
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                (new MessageDialog(widget, MessageDialog::ERROR))->
 
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                        Show("Error", buf);
 
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                return False;
 
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        }
 
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        else if (!System::FileRegular(file)) {
 
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                sprintf(buf, "File %s is not a regular file", file);
 
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                (new MessageDialog(widget, MessageDialog::ERROR))->
 
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                        Show("Error", buf);
 
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                return False;
 
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        }
 
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        else if ((fd = fopen(file, "r")) == 0) {
 
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                sprintf(buf, "Cannot read file %s", file);
 
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                (new MessageDialog(widget, MessageDialog::ERROR))->
 
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                        Show("Error", buf);
 
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                return False;
 
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        }
 
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        int cnt;
 
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        while ((cnt = fread(buf, sizeof(char), MAXNAME, fd)) > 0) {
 
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                buf[cnt] = '\0';
 
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                *text += buf;
 
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        }
 
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        fclose(fd);
 
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        return True;
 
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}
 
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bool FileUtils::Save(Widget widget, const char *file, const string *text) {
 
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        FILE *fd;
 
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        char buf[MAXNAME];
 
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        if (System::FileExists(file) && !System::FileRegular(file)) {
 
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                sprintf(buf, "File %s is not a regular file", file);
 
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                (new MessageDialog(widget, MessageDialog::ERROR))->
 
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                        Show("Error", buf);
 
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                return False;
 
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        }
 
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        if (System::FileExists(file)) {
 
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                QuestionDialog q(widget, False);
 
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                q.Initialize();
 
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                q.SetTitle("Question");
 
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                sprintf(buf, "File %s exists\n do you want to overwrite?",file);
 
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                q.SetMessageString(buf);
 
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                int answer = q.GetAnswer();
 
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                if (answer == QuestionDialog::NO)
 
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                        return False;
 
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        }
 
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        if ((fd = fopen(file, "w")) == 0) {
 
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                sprintf(buf, "Cannot write file %s", file);
 
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                (new MessageDialog(widget, MessageDialog::ERROR))->
 
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                        Show("Error", buf);
 
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                return False;
 
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        }
 
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        fprintf(fd,"%s", text->getstr());
 
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        fclose(fd);
 
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        return True;
 
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}
 
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bool FileUtils::PrintingOK(Widget widget, const char *jobName) {
 
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        PrinterOptions *printerOptions = theApplication->GetPrinterOptions();
 
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        string name = *printerOptions->GetPrinterName();
 
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        string txt = "Do you want to print ";
 
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        txt += jobName;
 
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        txt += "\nto PostScript printer ";
 
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        txt += name;
 
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        txt += "?";
 
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        QuestionDialog q(widget, False);
 
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        q.Initialize();
 
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        q.SetTitle("Print confirmation");
 
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        q.SetMessageString(&txt);
 
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        return (q.GetAnswer() == QuestionDialog::YES);
 
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}
 
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bool FileUtils::Print(Widget widget, const char *file, 
 
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                const char *jobName, const char *filter) {
 
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        bool result = True;
 
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        char command[MAXNAME];
 
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        char job[MAXNAME];
 
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        if (equal(jobName, ""))
 
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                strcpy(job, "Untitled");
 
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        else
 
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                strcpy(job, jobName);
 
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        char buf[MAXNAME];
 
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        command[0]= '\0';
 
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        PrinterOptions *printerOptions = theApplication->GetPrinterOptions();
 
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        string name = *printerOptions->GetPrinterName();
 
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        int copies = printerOptions->GetPrintCopies();
 
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        int bannerPage = printerOptions->GetPrintBannerPage();
 
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        string printBanner = "";
 
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        string printCommand = *printerOptions->GetPrintCommand();
 
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        // print it
 
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        if (name != "") {
 
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                if  (!System::FileExists(printCommand.getstr())) {
 
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                        string txt = "The Unix command " + printCommand + 
 
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                                     " is not installed"; 
 
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                        (new MessageDialog(widget, MessageDialog::ERROR))->
 
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                                Show("Error", &txt);
 
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                        error("Error: could not open %s\n", 
 
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                                printCommand.getstr());
 
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                        result = False;
 
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                }
 
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                else {
 
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                        System::GiveFile(printCommand.getstr(), buf);
 
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                        // construct print command
 
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                        if (equal(buf, "lpr")) {
 
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                                if (bannerPage != Config::DEF_BANNER)
 
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                                        printBanner = "-h";
 
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                                if (equal(filter, ""))
 
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                                        sprintf(command, 
 
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                                  "%s -P%s -#%d -J%s %s <%s 2>&1 | cat >/dev/null",
 
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                                        printCommand.getstr(), name.getstr(), 
 
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                                        copies, job, printBanner.getstr(), file);
 
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                                else
 
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                                        sprintf(command, 
 
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                                        "%s <%s | %s -P%s -#%d -J%s %s 2>&1 "
 
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                                        "| cat >/dev/null",
 
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                                        filter, file, printCommand.getstr(), 
 
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                                        name.getstr(), copies, job,
 
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                                        printBanner.getstr());
 
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                        }
 
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                        else if (equal(buf, "lp")) {
 
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                                if (bannerPage != Config::DEF_BANNER)
 
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                                        printBanner = "-o nobanner";
 
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                                if (equal(filter, ""))
 
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                                        sprintf(command, 
 
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                                        "%s -d %s -n %d -t %s %s <%s 2>&1 "
 
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                                        "| cat >/dev/null",
 
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                                        printCommand.getstr(), name.getstr(), 
 
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                                        copies, job, printBanner.getstr(), file);
 
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                                else
 
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                                        sprintf(command, 
 
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                                        "%s < %s | %s -d %s -n %d -t %s %s 2>&1 "
 
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                                        "| cat >/dev/null",
 
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                                        filter, file, printCommand.getstr(), 
 
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                                        name.getstr(), copies, job,
 
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                                        printBanner.getstr());
 
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                        }
 
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                        else {
 
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                                if (equal(filter, ""))
 
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                                        sprintf(command, 
 
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                                        "%s <%s 2>&1 | cat >/dev/null", 
 
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                                        printCommand.getstr(), file);
 
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                                else
 
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                                        sprintf(command, 
 
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                                        "%s < %s | %s 2>&1 | cat >/dev/null", 
 
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                                        filter, file, printCommand.getstr());
 
182
                        }
 
183
                        int status = system(command);
 
184
                        // Check for errors
 
185
                        if (status) {
 
186
                                (new MessageDialog(widget, 
 
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                                        MessageDialog::ERROR))->
 
188
                                        Show("Error", 
 
189
                                        "Printing did not succeed");
 
190
                                error("print error, print status = %d \n", 
 
191
                                        status);
 
192
                                result = False;
 
193
                        }
 
194
                }
 
195
        } 
 
196
        else {
 
197
                (new MessageDialog(widget, MessageDialog::ERROR))->
 
198
                        Show("Error", "The printer name is not set");
 
199
                result = False;
 
200
        }
 
201
        // remove it.
 
202
        unlink(file);
 
203
        return result;
 
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}