Dark mode support

Centralized all colors, tweaked application paletter in darkmode to make it darker.

pglab/codeeditor/CodeEditor.cpp

@@ -14,6 +14,7 @@
 CodeEditor::CodeEditor(QWidget *parent)
 	: QPlainTextEdit(parent)
 	, gutterArea(new EditorGutter(this))
+    , colorTheme(GetColorTheme())
 {
 	connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateGutterAreaWidth(int)));
 	connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateGutterArea(QRect,int)));
@@ -69,8 +70,7 @@ void CodeEditor::resizeEvent(QResizeEvent *e)
 void CodeEditor::highlightCurrentLine()
 {
 	QTextEdit::ExtraSelection selection;
-	QColor lineColor = QColor(Qt::yellow).lighter(160);
-	selection.format.setBackground(lineColor);
+    selection.format.setBackground(colorTheme.currentLine);
 	selection.format.setProperty(QTextFormat::FullWidthSelection, true);
 	selection.cursor = textCursor();
 	selection.cursor.clearSelection();
@@ -87,8 +87,7 @@ void CodeEditor::onTextChanged()
 void CodeEditor::addErrorMarker(int position, int length)
 {
     QTextEdit::ExtraSelection selection;
-    QColor lineColor = QColor(Qt::red).lighter(160);
-	selection.format.setBackground(lineColor);
+    selection.format.setBackground(colorTheme.errorLine);
 	selection.format.setFontItalic(true);
 	selection.cursor = textCursor();
 	selection.cursor.setPosition(position);

pglab/codeeditor/CodeEditor.h

@@ -3,6 +3,7 @@
 
 #include <QPlainTextEdit>
 #include <set>
+#include "util/Colors.h"
 
 /** This class adds some capabilities to QPlainTextEdit that are useful
  * in code editor scenarios.
@@ -39,6 +40,7 @@ private:
 
 	QTextEdit::ExtraSelection currentLine;
 	QList<QTextEdit::ExtraSelection> errorMarkers;
+    const ColorTheme &colorTheme;
 
 	std::set<int> errorLines;
 

pglab/codeeditor/GutterPainter.cpp

@@ -7,11 +7,14 @@ GutterPainter::GutterPainter(CodeEditor *editor, QPaintEvent *event)
     , painter(editor->gutterArea)
     , event(event)
     , fontMetrics(editor->fontMetrics())
-{}
+    , colorTheme(GetColorTheme())
+{
+
+}
 
 void GutterPainter::Paint()
 {
-    painter.fillRect(event->rect(), Qt::lightGray);
+    painter.fillRect(event->rect(), colorTheme.gutterBackground);
 
     LoopState loopState(editor);
     // We will now loop through all visible lines and paint the line numbers in the
@@ -37,7 +40,7 @@ void GutterPainter::Paint()
 void GutterPainter::drawLineNumber(const LoopState &loopState)
 {
     QString number = QString::number(loopState.blockNumber() + 1);
-    painter.setPen(Qt::black);
+    painter.setPen(colorTheme.lineNumber);
     painter.drawText(0, loopState.top, editor->gutterArea->width(), fontMetrics.height(),
                      Qt::AlignRight, number);
 }

pglab/codeeditor/GutterPainter.h

@@ -1,5 +1,6 @@
 #include <QPainter>
 #include <QTextBlock>
+#include "util/Colors.h"
 
 #pragma once
 
@@ -13,10 +14,13 @@ public:
 
     void Paint();
 private:
+
     CodeEditor *editor;
     QPainter painter;
     QPaintEvent *event;
     QFontMetrics fontMetrics;
+    const ColorTheme &colorTheme;
+
 
     struct LoopState {
         CodeEditor *editor;