utils/themeeditor/skindocument.cpp

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2010 Robert Bieber
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include "skindocument.h"
  23
  24 #include <QFile>
  25 #include <QSettings>
  26 #include <QMessageBox>
  27 #include <QFileDialog>
  28
  29 SkinDocument::SkinDocument(QWidget *parent) : QWidget(parent)
  30 {
  31     setupUI();
  32
  33     title = "Untitled";
  34     fileName = "";
  35     saved = "";
  36 }
  37
  38 SkinDocument::SkinDocument(QString file, QWidget *parent):
  39         QWidget(parent), fileName(file)
  40 {
  41     setupUI();
  42
  43     /* Loading the file */
  44     if(QFile::exists(fileName))
  45     {
  46         QFile fin(fileName);
  47         fin.open(QFile::ReadOnly);
  48         editor->document()->setPlainText(QString(fin.readAll()));
  49         saved = editor->document()->toPlainText();
  50         fin.close();
  51     }
  52
  53     /* Setting the title */
  54     QStringList decomposed = fileName.split('/');
  55     title = decomposed.last();
  56 }
  57
  58 SkinDocument::~SkinDocument()
  59 {
  60     delete highlighter;
  61     delete model;
  62 }
  63
  64 bool SkinDocument::requestClose()
  65 {
  66     if(editor->document()->toPlainText() != saved)
  67     {
  68         /* Spawning the "Are you sure?" dialog */
  69         QMessageBox confirm(this);
  70         confirm.setWindowTitle(tr("Confirm Close"));
  71         confirm.setText(title + tr(" has been modified."));
  72         confirm.setInformativeText(tr("Do you want to save your changes?"));
  73         confirm.setStandardButtons(QMessageBox::Save | QMessageBox::Discard
  74                                    | QMessageBox::Cancel);
  75         confirm.setDefaultButton(QMessageBox::Save);
  76         int confirmation = confirm.exec();
  77
  78         switch(confirmation)
  79         {
  80         case QMessageBox::Save:
  81             save();
  82             /* After calling save, make sure the user actually went through */
  83             if(editor->document()->toPlainText() != saved)
  84                 return false;
  85             else
  86                 return true;
  87
  88         case QMessageBox::Discard:
  89             return true;
  90
  91         case QMessageBox::Cancel:
  92             return false;
  93         }
  94     }
  95
  96     return true;
  97 }
  98
  99 void SkinDocument::setupUI()
 100 {
 101     /* Setting up the text edit */
 102     layout = new QHBoxLayout;
 103     editor = new QPlainTextEdit(this);
 104     layout->addWidget(editor);
 105
 106     setLayout(layout);
 107
 108     /* Attaching the syntax highlighter */
 109     highlighter = new SkinHighlighter(QColor(0,180,0), QColor(255,0,0),
 110                                       QColor(0,0,255), QColor(120,120,120),
 111                                       editor->document());
 112
 113     /* Setting up the model */
 114     model = new ParseTreeModel("");
 115
 116     /* Connecting the editor's signal */
 117     QObject::connect(editor, SIGNAL(textChanged()),
 118                      this, SLOT(codeChanged()));
 119 }
 120
 121 void SkinDocument::codeChanged()
 122 {
 123     model->changeTree(editor->document()->toPlainText().toAscii());
 124
 125     if(editor->document()->toPlainText() != saved)
 126         emit titleChanged(title + QChar('*'));
 127     else
 128         emit titleChanged(title);
 129 }
 130
 131 void SkinDocument::save()
 132 {
 133     QFile fout(fileName);
 134
 135     if(!fout.exists())
 136     {
 137         saveAs();
 138         return;
 139     }
 140
 141     fout.open(QFile::WriteOnly);
 142     fout.write(editor->document()->toPlainText().toAscii());
 143     fout.close();
 144
 145     saved = editor->document()->toPlainText();
 146     QStringList decompose = fileName.split('/');
 147     title = decompose.last();
 148     emit titleChanged(title);
 149
 150 }
 151
 152 void SkinDocument::saveAs()
 153 {
 154     /* Determining the directory to open */
 155     QString directory = fileName;
 156
 157     QSettings settings;
 158     settings.beginGroup("SkinDocument");
 159     if(directory == "")
 160         directory = settings.value("defaultDirectory", "").toString();
 161
 162     fileName = QFileDialog::getSaveFileName(this, tr("Save Document"),
 163                                             directory, fileFilter());
 164     directory = fileName;
 165     if(fileName == "")
 166         return;
 167
 168     directory.chop(fileName.length() - fileName.lastIndexOf('/') - 1);
 169     settings.setValue("defaultDirectory", directory);
 170     settings.endGroup();
 171
 172     QFile fout(fileName);
 173     fout.open(QFile::WriteOnly);
 174     fout.write(editor->document()->toPlainText().toAscii());
 175     fout.close();
 176
 177     saved = editor->document()->toPlainText();
 178     QStringList decompose = fileName.split('/');
 179     title = decompose[decompose.count() - 1];
 180     emit titleChanged(title);
 181
 182 }