Implement richtext_item_delegate

And use it in pkg_install_dialog

rpcs3/rpcs3.vcxproj

@@ -2430,6 +2430,7 @@
       <Command Condition="'$(Configuration)|$(Platform)'=='Debug - LLVM|x64'">"$(QTDIR)\bin\moc.exe"  "%(FullPath)" -o ".\QTGeneratedFiles\$(ConfigurationName)\moc_%(Filename).cpp"  -D_WINDOWS -DUNICODE -DWIN32 -DWIN64 -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_WINEXTRAS_LIB -DQT_CONCURRENT_LIB -D%(PreprocessorDefinitions) "-I.\..\3rdparty\flatbuffers\include" "-I.\..\3rdparty\wolfssl" "-I.\..\3rdparty\curl\include" "-I.\..\3rdparty\libusb\libusb" "-I$(VULKAN_SDK)\Include" "-I.\..\3rdparty\XAudio2Redist\include" "-I$(QTDIR)\include" "-I$(QTDIR)\include\QtWidgets" "-I$(QTDIR)\include\QtGui" "-I$(QTDIR)\include\QtANGLE" "-I$(QTDIR)\include\QtCore" "-I.\debug" "-I$(QTDIR)\mkspecs\win32-msvc2015" "-I.\QTGeneratedFiles\$(ConfigurationName)" "-I.\QTGeneratedFiles" "-I$(QTDIR)\include\QtWinExtras" "-I$(QTDIR)\include\QtConcurrent"</Command>
     </CustomBuild>
     <ClInclude Include="rpcs3qt\numbered_widget_item.h" />
+    <ClInclude Include="rpcs3qt\richtext_item_delegate.h" />
     <ClInclude Include="rpcs3qt\stylesheets.h" />
     <CustomBuild Include="rpcs3qt\skylander_dialog.h">
       <AdditionalInputs Condition="'$(Configuration)|$(Platform)'=='Release - LLVM|x64'">$(QTDIR)\bin\moc.exe;%(FullPath)</AdditionalInputs>

rpcs3/rpcs3.vcxproj.filters

@@ -1218,6 +1218,9 @@
     <ClInclude Include="rpcs3qt\table_item_delegate.h">
       <Filter>Gui\custom items</Filter>
     </ClInclude>
+    <ClInclude Include="rpcs3qt\richtext_item_delegate.h">
+      <Filter>Gui\custom items</Filter>
+    </ClInclude>
     <ClInclude Include="rpcs3qt\numbered_widget_item.h">
       <Filter>Gui\custom items</Filter>
     </ClInclude>

rpcs3/rpcs3qt/pkg_install_dialog.cpp

@@ -1,6 +1,7 @@
 #include "pkg_install_dialog.h"
 #include "game_compatibility.h"
 #include "numbered_widget_item.h"
+#include "richtext_item_delegate.h"
 
 #include <QDialogButtonBox>
 #include <QPushButton>
@@ -22,6 +23,7 @@ pkg_install_dialog::pkg_install_dialog(const QStringList& paths, game_compatibil
 	: QDialog(parent)
 {
 	m_dir_list = new QListWidget(this);
+	m_dir_list->setItemDelegate(new richtext_item_delegate(m_dir_list->itemDelegate()));
 
 	for (const QString& path : paths)
 	{

rpcs3/rpcs3qt/richtext_item_delegate.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include <QAbstractTextDocumentLayout>
+#include <QApplication>
+#include <QStyledItemDelegate>
+#include <QTextDocument>
+
+class richtext_item_delegate : public QStyledItemDelegate
+{
+private:
+	QTextDocument* m_document;
+
+public:
+	explicit richtext_item_delegate(QObject* parent = 0)
+		: QStyledItemDelegate(parent)
+		, m_document(new QTextDocument(this))
+	{
+	}
+
+	void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override
+	{
+		painter->save();
+
+		// Initialize style option
+		QStyleOptionViewItem opt = option;
+		initStyleOption(&opt, index);
+
+		// Setup the QTextDocument with our HTML
+		m_document->setHtml(opt.text);
+		opt.text.clear();
+
+		// Get the available style
+		QStyle* style = opt.widget ? opt.widget->style() : QApplication::style();
+
+		// Draw our widget if available
+		style->drawControl(QStyle::CE_ItemViewItem, &opt, painter, opt.widget);
+
+		// Adjust our painter parameters with some magic that looks good.
+		// This is necessary so that we don't draw on top of the optional widget.
+		const int margin = (option.rect.height() - opt.fontMetrics.height() - 4);
+		QRect text_rect  = style->subElementRect(QStyle::SE_ItemViewItemText, &opt, nullptr);
+
+		if (index.column() != 0)
+		{
+			text_rect.adjust(5, 0, 0, 0);
+		}
+
+		text_rect.setTop(text_rect.top() + margin);
+
+		painter->translate(text_rect.topLeft());
+		painter->setClipRect(text_rect.translated(-text_rect.topLeft()));
+
+		// Create a context for our painter
+		QAbstractTextDocumentLayout::PaintContext context;
+
+		// We can change the text color based on state (Unused because it didn't look good)
+		//context.palette.setColor(QPalette::Text, option.palette.color(QPalette::Active, (option.state & QStyle::State_Selected) ? QPalette::HighlightedText : QPalette::Text));
+
+		// Draw the text
+		m_document->documentLayout()->draw(painter, context);
+
+		painter->restore();
+
+		//QStyledItemDelegate::paint(painter, opt, index); // Unused
+	}
+};