Engauge Digitizer 2
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FileCmdScript.cpp
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1/******************************************************************************************************
2 * (C) 2014 markummitchell@github.com. This file is part of Engauge Digitizer, which is released *
3 * under GNU General Public License version 2 (GPLv2) or (at your option) any later version. See file *
4 * LICENSE or go to gnu.org/licenses for details. Distribution requires prior written permission. *
5 ******************************************************************************************************/
6
7#include "FileCmdAbstract.h"
8#include "FileCmdFactory.h"
9#include "FileCmdScript.h"
10#include "FileCmdSerialize.h"
11#include "Logger.h"
12#include "MainWindow.h"
13#include <QDir>
14#include <QFile>
15#include <QMessageBox>
16#include <QXmlStreamReader>
17#include "Xml.h"
18
19FileCmdScript::FileCmdScript(const QString &fileCmdScriptFile)
20{
21 LOG4CPP_INFO_S ((*mainCat)) << "FileCmdScript::FileCmdScript"
22 << " curDir=" << QDir::currentPath().toLatin1().data();
23
24 // A non-existent script file is allowed in which case nothing gets done, as a way
25 // of tracking MainWindow being in a regression test that has no command script
26 if (!fileCmdScriptFile.isEmpty ()) {
27
28 // Read commands into stack. The file is known to exist since it was checked in parseCmdLine
29 QFile file (fileCmdScriptFile);
30
31 QXmlStreamReader reader (&file);
32 if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
33
34 QString msg = QString ("%1 %2 %3 %4")
35 .arg (QObject::tr ("Cannot read script file"))
36 .arg (fileCmdScriptFile)
37 .arg (QObject::tr ("from directory"))
38 .arg (QDir::currentPath());
39 QMessageBox::critical (nullptr,
40 "Script File",
41 msg);
42 exit (-1);
43 }
44
45 // Load commands
46 FileCmdFactory factory;
47 while (!reader.atEnd() && !reader.hasError()) {
48
49 if ((loadNextFromReader (reader) == QXmlStreamReader::StartElement) &&
50 (reader.name() == FILE_CMD_SERIALIZE_CMD)) {
51
52 // Extract and append new command to command stack
53 m_fileCmdStack.push_back (factory.createFileCmd (reader));
54 }
55 }
56 file.close();
57 }
58}
59
63
65{
66 LOG4CPP_INFO_S ((*mainCat)) << "FileCmdScript::canRedo";
67
68 return (m_fileCmdStack.count () > 0);
69}
70
72{
73 LOG4CPP_INFO_S ((*mainCat)) << "FileCmdScript::redo";
74
75 m_fileCmdStack.first()->redo(mainWindow);
76 m_fileCmdStack.pop_front();
77}
const QString FILE_CMD_SERIALIZE_CMD
log4cpp::Category * mainCat
Definition Logger.cpp:14
QXmlStreamReader::TokenType loadNextFromReader(QXmlStreamReader &reader)
Load next token from xml reader.
Definition Xml.cpp:14
Factory that creates FileCmds from a file cmd script file, in xml format.
FileCmdAbstract * createFileCmd(QXmlStreamReader &reader) const
Create one FileCmdAbstract from the specified xml subtree.
bool canRedo() const
Returns true if there is at least one command on the stack.
void redo(MainWindow &mainWindow)
Apply the next command. Requires non-empty stack.
FileCmdScript(const QString &fileCmdScriptFile)
Single constructor.
Main window consisting of menu, graphics scene, status bar and optional toolbars as a Single Document...
Definition MainWindow.h:95
#define LOG4CPP_INFO_S(logger)
Definition convenience.h:18