Add TextDocument with full size editor

A new document object App::TextDocument. It has a property Text which holds the text of the document as a string. This commit also contains a full size editor based on QPlainTextEdit. It can only be used by the TextDocument and has a read only mode invoked for read only documents (ReadOnly property set to true). The editor is invoked by a double click on the TextDocument.
2017-07-03 14:43:47 +02:00
parent 9e7eb3bc2c
commit fc36dfed0d
12 changed files with 726 additions and 0 deletions
--- a/src/Gui/TextDocumentEditorView.cpp
+++ b/src/Gui/TextDocumentEditorView.cpp
@@ -0,0 +1,168 @@
+/***************************************************************************
+ *   Copyright (c) 2017 Markus Hovorka <m.hovorka@live.de>                 *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  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 Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#include "PreCompiled.h"
+
+#include <iostream>
+#include <boost/bind.hpp>
+#include <boost/signals2.hpp>
+#include <QString>
+#include <QMessageBox>
+#include <QPushButton>
+
+#include <App/TextDocument.h>
+#include <Gui/Document.h>
+#include <Gui/Application.h>
+#include <Gui/MainWindow.h>
+
+#include "TextDocumentEditorView.h"
+
+
+using namespace Gui;
+
+TextDocumentEditorView::TextDocumentEditorView(
+        App::TextDocument* txtDoc, QPlainTextEdit* e,
+        QWidget* parent)
+    : MDIView(
+            Application::Instance->getDocument(txtDoc->getDocument()),
+            parent),
+    editor {e}, textDocument {txtDoc}
+{
+    setupEditor();
+    setupConnection();
+    setCentralWidget(editor);
+}
+
+TextDocumentEditorView::~TextDocumentEditorView()
+{
+    textConnection.disconnect();
+}
+
+bool TextDocumentEditorView::event(QEvent *event)
+{
+    if (event->type() == QEvent::Show && sourceModified) {
+        refresh();
+        sourceModified = false;
+    }
+    return MDIView::event(event);
+}
+
+void TextDocumentEditorView::setupEditor()
+{
+    connect(getEditor()->document(), SIGNAL(modificationChanged(bool)),
+            this, SLOT(setWindowModified(bool)));
+    getEditor()->setReadOnly(textDocument->ReadOnly.getValue());
+    setWindowTitle(QString::fromLatin1(textDocument->Label.getValue())
+            + QString::fromLatin1("[*]"));
+    getEditor()->setPlainText(
+            QString::fromUtf8(textDocument->Text.getValue()));
+}
+
+void TextDocumentEditorView::setupConnection()
+{
+    textConnection = textDocument->connect(
+            boost::bind(&TextDocumentEditorView::sourceChanged, this));
+}
+
+void TextDocumentEditorView::sourceChanged()
+{
+    if (getMainWindow()->activeWindow() == this) {
+        refresh();
+        sourceModified = false;
+    } else {
+        sourceModified = true;
+    }
+}
+
+void TextDocumentEditorView::refresh()
+{
+    QString text = QString::fromStdString(
+            textDocument->Text.getStrValue());
+    if (isEditorModified()) {
+        QMessageBox msgBox {this};
+        msgBox.setWindowTitle(QString::fromUtf8("Text updated"));
+        msgBox.setIcon(QMessageBox::Question);
+        msgBox.setText(QString::fromUtf8(
+                    "The text of the underlying object has changed. "
+                    "Discard changes and reload the text from the object?"));
+        QPushButton* yesBtt = msgBox.addButton(
+                QString::fromUtf8("Yes, reload."), QMessageBox::YesRole);
+        QPushButton* noBtt = msgBox.addButton(
+                QString::fromUtf8("No"), QMessageBox::NoRole);
+        msgBox.exec();
+        if (msgBox.clickedButton() == noBtt)
+            return;
+    }
+    getEditor()->setPlainText(text);
+}
+
+bool TextDocumentEditorView::onMsg(const char* msg, const char**)
+{
+    if (strcmp(msg,"Save") == 0) {
+        saveToObject();
+        return true;
+    }
+    return false;
+}
+
+bool TextDocumentEditorView::isEditorModified() const
+{
+    return getEditor()->document()->isModified();
+}
+
+bool TextDocumentEditorView::onHasMsg(const char* msg) const
+{
+    if (strcmp(msg,"Save") == 0)
+        return isEditorModified();
+    return false;
+}
+
+bool TextDocumentEditorView::canClose()
+{
+    if (!getEditor()->document()->isModified())
+        return true;
+
+    this->setFocus();
+
+    QString question {
+        tr("The document has been modified.\n"
+                "Do you want to save your changes?")};
+    auto reply = QMessageBox::question(
+            this, tr("Unsaved document"), question,
+            QMessageBox::Yes|QMessageBox::Default, QMessageBox::No,
+            QMessageBox::Cancel|QMessageBox::Escape);
+    if (reply == QMessageBox::Yes)
+        saveToObject();
+    return reply != QMessageBox::Cancel;
+}
+
+void TextDocumentEditorView::saveToObject()
+{
+    boost::signals2::shared_connection_block textBlock {textConnection};
+    textDocument->Text.setValue(
+            getEditor()->document()->toPlainText().toStdString());
+    getEditor()->document()->setModified(false);
+}
+
+
+#include "moc_TextDocumentEditorView.cpp"