Add a few comments

capture/capturewidget.cpp

@@ -82,7 +82,7 @@ CaptureWidget::CaptureWidget(QWidget *parent) :
     // init screenshot
     createCapture();
     resize(m_screenshot.size());
-    // initi interface color
+    // init interface color
     m_uiColor = QSettings().value("uiColor").value<QColor>();
     show();
 

capture/colorpicker.cpp

@@ -7,17 +7,20 @@
 ColorPicker::ColorPicker(QWidget *parent) : QWidget(parent),
         m_colorAreaSize(18) {
     setMouseTracking(true);
-
+    // save the color values in member variables for faster access
     QSettings settings;
     m_uiColor = settings.value("uiColor").value<QColor>();
     m_drawColor = settings.value("drawColor").value<QColor>();
+    // extraSize represents the extra space needed for the highlight of the
+    // selected color.
     const int extraSize = 6;
     double radius = (colorList.size()*m_colorAreaSize/1.3)/(3.141592);
     resize(radius*2 + m_colorAreaSize + extraSize,
            radius*2 + m_colorAreaSize+ extraSize);
     double degree = 360 / (colorList.size());
     double degreeAcum = degree;
-
+    // this line is the radius of the circle which will be rotated to add
+    // the color components.
     QLineF baseLine = QLineF(QPoint(radius+extraSize/2, radius+extraSize/2),
                              QPoint(radius*2, radius));
 
@@ -44,6 +47,7 @@ void ColorPicker::paintEvent(QPaintEvent *) {
     QVector<QRect> rects = handleMask();
     painter.setPen(QColor(Qt::black));
     for(int i = 0; i < rects.size(); ++i) {
+        // draw the highlight when we have to draw the selected color
         if (m_drawColor == QColor(colorList.at(i))) {
             QColor c = QColor(m_uiColor);
             c.setAlpha(155);

capture/colorpicker.h

@@ -9,7 +9,6 @@ class ColorPicker : public QWidget
 public:
     explicit ColorPicker(QWidget *parent = 0);
     ~ColorPicker();
-    static QVector<Qt::GlobalColor> colorList;
 
     QColor getDrawColor();
 
@@ -26,6 +25,7 @@ public slots:
 private:
     const int m_colorAreaSize;
     QVector<QRect> m_colorAreaList;
+    static QVector<Qt::GlobalColor> colorList;
 
     QColor m_uiColor, m_drawColor;
 };

capture/screenshot.cpp

@@ -124,7 +124,7 @@ QPixmap Screenshot::paintModifications(const QVector<CaptureModification> v) {
         switch (modification.getType()) {
         case Button::Type::arrow:
             painter.drawLine(points[0], points[1]);
-
+            // TODO
 
             break;
         case Button::Type::circle: