data: Option to run only C/C++ preprocessor when indexing (issue 297)

* Added as checkbox to indexing start dialog
* Only shown for C/C++ projects
* Files will be marked incomplete

src/lib_gui/qt/element/QtIconButton.cpp

@@ -1,9 +1,12 @@
 #include "qt/element/QtIconButton.h"
 
+#include "qt/utility/utilityQt.h"
+
 QtIconButton::QtIconButton(QString iconPath, QString hoveredIconPath, QWidget* parent)
 	: QPushButton("", parent)
 	, m_iconPath(iconPath)
 	, m_hoveredIconPath(hoveredIconPath)
+	, m_color(Qt::transparent)
 {
 	setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
 	setAttribute(Qt::WA_LayoutUsesWidgetRect); // fixes layouting on Mac
@@ -14,11 +17,17 @@ QtIconButton::QtIconButton(QString iconPath, QString hoveredIconPath, QWidget* p
 	leaveEvent(nullptr);
 }
 
+void QtIconButton::setColor(QColor color)
+{
+	m_color = color;
+	leaveEvent(nullptr);
+}
+
 void QtIconButton::enterEvent(QEvent *event)
 {
 	if (m_hoveredIconPath.size())
 	{
-		setIcon(QIcon(QPixmap(m_hoveredIconPath)));
+		setIconFromPath(m_hoveredIconPath);
 	}
 }
 
@@ -26,6 +35,18 @@ void QtIconButton::leaveEvent(QEvent *event)
 {
 	if (m_iconPath.size())
 	{
-		setIcon(QIcon(QPixmap(m_iconPath)));
+		setIconFromPath(m_iconPath);
 	}
 }
+
+void QtIconButton::setIconFromPath(QString path)
+{
+	QPixmap pixmap = QPixmap(path);
+
+	if (m_color != Qt::transparent)
+	{
+		pixmap = utility::colorizePixmap(pixmap, m_color);
+	}
+
+	setIcon(QIcon(pixmap));
+}