Added line numbers and error line highlighting

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@12438 383ad7c9-94d9-4d36-a494-682f7c89f535

FunctionList.cc

@@ -41,7 +41,6 @@
 \*===========================================================================*/
 
 #include "FunctionList.hh"
-#include <iostream>
 
 FunctionList::FunctionList(QWidget *parent)
     : QListWidget(parent)

ScriptingPlugin.cc

@@ -45,7 +45,6 @@
 
 #include "ScriptingPlugin.hh"
 
-#include <iostream>
 #include <ACG/GL/GLState.hh>
 
 #include <OpenFlipper/BasePlugin/PluginFunctions.hh>
@@ -167,7 +166,7 @@ void ScriptingPlugin::pluginsInitialized() {
 
   scriptWidget_->description->setVisible( false );
 
-  highlighterCurrent_ = new Highlighter( scriptWidget_->currentScript );
+  highlighterCurrent_ = new Highlighter( scriptWidget_->currentScript->document() );
   highlighterLive_    = new Highlighter( scriptWidget_->liveEdit );
 //   highlighterList_    = new Highlighter( scriptWidget_->functionList  );
   frameTime_.start();
@@ -275,8 +274,17 @@ void ScriptingPlugin::slotExecuteScript( QString _script ) {
     int lineNumber = engine->uncaughtExceptionLineNumber();
     emit log( LOGERR , tr("Script execution failed at line %1, with : %2 ").arg(lineNumber).arg(exception) );
 
-    if ( OpenFlipper::Options::gui())
+    if ( OpenFlipper::Options::gui()) {
         statusBar_->showMessage(tr("Script execution failed at line %1, with : %2 ").arg(lineNumber).arg(exception));
+
+        // Get cursor and move it to the line containing the error
+        QTextCursor cursor = scriptWidget_->currentScript->textCursor();
+        cursor.setPosition(0);
+        cursor.movePosition ( QTextCursor::Down, QTextCursor::MoveAnchor, lineNumber - 1 );
+        scriptWidget_->currentScript->setTextCursor(cursor);
+
+        scriptWidget_->currentScript->highLightErrorLine(lineNumber);
+    }
   }
 
   if ( OpenFlipper::Options::gui() && !error)
@@ -297,7 +305,7 @@ void ScriptingPlugin::slotExecuteFileScript( QString _filename ) {
     } while (!input.atEnd());
 
     if ( OpenFlipper::Options::gui() )
-      scriptWidget_->currentScript->setText(script);
+      scriptWidget_->currentScript->setPlainText(script);
 
     // Set lastfilename to the opened file
     lastFile_ = _filename;
@@ -437,7 +445,7 @@ void ScriptingPlugin::slotLoadScript( QString _filename ) {
     if (data.open(QFile::ReadOnly)) {
       QTextStream input(&data);
       do {
-        scriptWidget_->currentScript->append(input.readLine());
+        scriptWidget_->currentScript->appendPlainText(input.readLine());
       } while (!input.atEnd());
       
       lastFile_ = _filename;
@@ -569,7 +577,7 @@ void ScriptingPlugin::showScriptInEditor(QString _code)
 
   showScriptWidget ();
 
-  scriptWidget_->currentScript->setText (_code);
+  scriptWidget_->currentScript->setPlainText(_code);
 }
 
 void ScriptingPlugin::clearEditor() {

ScriptingPlugin.hh

@@ -57,6 +57,7 @@
 #include "scriptingWidget.hh"
 
 
+
 class ScriptingPlugin : public QObject, BaseInterface, MenuInterface, ScriptInterface, RPCInterface, LoggingInterface
 {
 Q_OBJECT

codeeditor.cc

+
+/*===========================================================================*\
+*                                                                            *
+*                              OpenFlipper                                   *
+*      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen       *
+*                           www.openflipper.org                              *
+*                                                                            *
+*--------------------------------------------------------------------------- *
+*  This file is part of OpenFlipper.                                         *
+*                                                                            *
+*  OpenFlipper is free software: you can redistribute it and/or modify       *
+*  it under the terms of the GNU Lesser General Public License as            *
+*  published by the Free Software Foundation, either version 3 of            *
+*  the License, or (at your option) any later version with the               *
+*  following exceptions:                                                     *
+*                                                                            *
+*  If other files instantiate templates or use macros                        *
+*  or inline functions from this file, or you compile this file and          *
+*  link it with other files to produce an executable, this file does         *
+*  not by itself cause the resulting executable to be covered by the         *
+*  GNU Lesser General Public License. This exception does not however        *
+*  invalidate any other reasons why the executable file might be             *
+*  covered by the GNU Lesser General Public License.                         *
+*                                                                            *
+*  OpenFlipper 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 Lesser General Public License for more details.                       *
+*                                                                            *
+*  You should have received a copy of the GNU LesserGeneral Public           *
+*  License along with OpenFlipper. If not,                                   *
+*  see <http://www.gnu.org/licenses/>.                                       *
+*                                                                            *
+\*===========================================================================*/
+
+/*===========================================================================*\
+*                                                                            *
+*   $Revision$                                                       *
+*   $LastChangedBy$                                                *
+*   $Date$                     *
+*                                                                            *
+\*===========================================================================*/
+
+#include <QtGui>
+
+#include "codeeditor.hh"
+
+
+CodeEditorWidget::CodeEditorWidget(QWidget *parent) : QPlainTextEdit(parent) {
+  lineNumberArea = new LineNumberArea(this);
+
+  connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int)));
+  connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int)));
+  connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine()));
+
+  updateLineNumberAreaWidth(0);
+  highlightCurrentLine();
+}
+
+
+
+int CodeEditorWidget::lineNumberAreaWidth() {
+
+  int digits = 1;
+  int max = qMax(1, blockCount());
+  while (max >= 10) {
+    max /= 10;
+    ++digits;
+  }
+
+  int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits;
+
+  return space;
+}
+
+
+
+void CodeEditorWidget::updateLineNumberAreaWidth(int /* newBlockCount */) {
+  setViewportMargins(lineNumberAreaWidth(), 0, 0, 0);
+}
+
+
+
+void CodeEditorWidget::updateLineNumberArea(const QRect &rect, int dy) {
+  if (dy)
+    lineNumberArea->scroll(0, dy);
+  else
+    lineNumberArea->update(0, rect.y(), lineNumberArea->width(), rect.height());
+
+  if (rect.contains(viewport()->rect()))
+    updateLineNumberAreaWidth(0);
+}
+
+
+
+void CodeEditorWidget::resizeEvent(QResizeEvent *e) {
+  QPlainTextEdit::resizeEvent(e);
+
+  QRect cr = contentsRect();
+  lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height()));
+}
+
+
+
+void CodeEditorWidget::highlightCurrentLine() {
+  QList<QTextEdit::ExtraSelection> extraSelections;
+
+  if (!isReadOnly()) {
+    QTextEdit::ExtraSelection selection;
+
+    QColor lineColor = QColor(Qt::yellow).lighter(160);
+
+    selection.format.setBackground(lineColor);
+    selection.format.setProperty(QTextFormat::FullWidthSelection, true);
+    selection.cursor = textCursor();
+    selection.cursor.clearSelection();
+    extraSelections.append(selection);
+  }
+
+  setExtraSelections(extraSelections);
+}
+
+void CodeEditorWidget::highLightErrorLine(int _line) {
+  QList<QTextEdit::ExtraSelection> extraSelections;
+
+  if (!isReadOnly()) {
+    QTextEdit::ExtraSelection selection;
+
+    QColor lineColor = QColor(Qt::red).lighter(160);
+
+    selection.format.setBackground(lineColor);
+    selection.format.setProperty(QTextFormat::FullWidthSelection, true);
+    selection.cursor = QTextCursor(document());
+    selection.cursor.movePosition ( QTextCursor::Down, QTextCursor::MoveAnchor, _line - 1 );
+    selection.cursor.clearSelection();
+    extraSelections.append(selection);
+  }
+
+  setExtraSelections(extraSelections);
+}
+
+
+
+void CodeEditorWidget::lineNumberAreaPaintEvent(QPaintEvent *event) {
+
+  QPainter painter(lineNumberArea);
+  painter.fillRect(event->rect(), Qt::lightGray);
+
+
+  QTextBlock block = firstVisibleBlock();
+  int blockNumber = block.blockNumber();
+  int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top();
+  int bottom = top + (int) blockBoundingRect(block).height();
+
+  while (block.isValid() && top <= event->rect().bottom()) {
+    if (block.isVisible() && bottom >= event->rect().top()) {
+      QString number = QString::number(blockNumber + 1);
+      painter.setPen(Qt::black);
+      painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(),Qt::AlignRight, number);
+    }
+
+    block = block.next();
+    top = bottom;
+    bottom = top + (int) blockBoundingRect(block).height();
+    ++blockNumber;
+  }
+
+}

codeeditor.hh

+/*===========================================================================*\
+*                                                                            *
+*                              OpenFlipper                                   *
+*      Copyright (C) 2001-2011 by Computer Graphics Group, RWTH Aachen       *
+*                           www.openflipper.org                              *
+*                                                                            *
+*--------------------------------------------------------------------------- *
+*  This file is part of OpenFlipper.                                         *
+*                                                                            *
+*  OpenFlipper is free software: you can redistribute it and/or modify       *
+*  it under the terms of the GNU Lesser General Public License as            *
+*  published by the Free Software Foundation, either version 3 of            *
+*  the License, or (at your option) any later version with the               *
+*  following exceptions:                                                     *
+*                                                                            *
+*  If other files instantiate templates or use macros                        *
+*  or inline functions from this file, or you compile this file and          *
+*  link it with other files to produce an executable, this file does         *
+*  not by itself cause the resulting executable to be covered by the         *
+*  GNU Lesser General Public License. This exception does not however        *
+*  invalidate any other reasons why the executable file might be             *
+*  covered by the GNU Lesser General Public License.                         *
+*                                                                            *
+*  OpenFlipper 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 Lesser General Public License for more details.                       *
+*                                                                            *
+*  You should have received a copy of the GNU LesserGeneral Public           *
+*  License along with OpenFlipper. If not,                                   *
+*  see <http://www.gnu.org/licenses/>.                                       *
+*                                                                            *
+\*===========================================================================*/
+
+/*===========================================================================*\
+*                                                                            *
+*   $Revision$                                                       *
+*   $LastChangedBy$                                                *
+*   $Date$                     *
+*                                                                            *
+\*===========================================================================*/
+
+#ifndef CODEEDITORWIDGET_HH
+#define CODEEDITORWIDGET_HH
+
+#include <QPlainTextEdit>
+#include <QObject>
+
+class QPaintEvent;
+class QResizeEvent;
+class QSize;
+class QWidget;
+
+class LineNumberArea;
+
+
+class CodeEditorWidget : public QPlainTextEdit
+{
+    Q_OBJECT
+
+  public:
+    CodeEditorWidget(QWidget *parent = 0);
+
+    void lineNumberAreaPaintEvent(QPaintEvent *event);
+    int lineNumberAreaWidth();
+
+  protected:
+    void resizeEvent(QResizeEvent *event);
+
+  public:
+    void highLightErrorLine(int _line);
+
+  private slots:
+    void updateLineNumberAreaWidth(int newBlockCount);
+    void highlightCurrentLine();
+    void updateLineNumberArea(const QRect &, int);
+
+  private:
+    QWidget *lineNumberArea;
+};
+
+
+class LineNumberArea : public QWidget
+{
+  public:
+    LineNumberArea(CodeEditorWidget *editor) : QWidget(editor) {
+      codeEditor = editor;
+    }
+
+    QSize sizeHint() const {
+      return QSize(codeEditor->lineNumberAreaWidth(), 0);
+    }
+
+  protected:
+    void paintEvent(QPaintEvent *event) {
+      codeEditor->lineNumberAreaPaintEvent(event);
+    }
+
+  private:
+    CodeEditorWidget *codeEditor;
+};
+
+
+#endif

highLighter.cc

@@ -44,9 +44,19 @@
 
 #include "highLighter.hh"
 
+ Highlighter::Highlighter(QTextDocument *parent)
+  : QSyntaxHighlighter(parent)
+{
+ init();
+}
+
 Highlighter::Highlighter(QTextEdit *parent)
 : QSyntaxHighlighter(parent)
 {
+  init();
+}
+
+ void Highlighter::init() {
    // Set the basic format styles
    keywordFormat_.setForeground(Qt::darkGreen);
    keywordFormat_.setFontWeight(QFont::Bold);
@@ -93,14 +103,12 @@
    //   rule.format = functionFormat;
    //   highlightingRules.append(rule);
    //
-
 }
 
 void Highlighter::update() {
 
   highlightingRules_.clear();
 
-
   HighlightingRule rule;
 
   // Create Rules for keywords
@@ -150,6 +158,7 @@ void Highlighter::update() {
 
  void Highlighter::highlightBlock(const QString &text)
 {
+
    foreach (HighlightingRule rule, highlightingRules_) {
     QRegExp expression(rule.pattern);
     int index = text.indexOf(expression);

highLighter.hh

@@ -55,9 +55,10 @@ class Highlighter : public QSyntaxHighlighter
   Q_OBJECT
 
   public:
+    Highlighter( QTextDocument* parent = 0);
     Highlighter( QTextEdit* parent = 0);
 
-    // Updates the highlighter with the current rule set defined in the patterns
+    /// Updates the highlighter with the current rule set defined in the patterns
     void update();
 
     QStringList keywordPatterns_;
@@ -70,6 +71,8 @@ class Highlighter : public QSyntaxHighlighter
     void highlightBlock(const QString &text);
 
   private:
+    /// common initializer function called by the constructors
+    void init();
 
     struct HighlightingRule
     {

scriptingWidget.ui

@@ -26,7 +26,7 @@
        </property>
        <layout class="QVBoxLayout">
         <item>
-         <widget class="QTextEdit" name="currentScript">
+         <widget class="CodeEditorWidget" name="currentScript">
           <property name="enabled">
            <bool>true</bool>
           </property>
@@ -176,6 +176,11 @@
    <extends>QListWidget</extends>
    <header>FunctionList.hh</header>
   </customwidget>
+  <customwidget>
+   <class>CodeEditorWidget</class>
+   <extends>QTextEdit</extends>
+   <header>codeeditor.hh</header>
+  </customwidget>
  </customwidgets>
  <resources/>
  <connections>