ui: Added scroll speed setting to preferences

bin/app/user/ApplicationSettings_template.xml

@@ -7,34 +7,47 @@
 <!-- COLOR: int int int int - rgba e.g. 125 125 125 255 -->
 
 <config>
-	<source>
-		<compiler_flags>
-			<compiler_flag><!-- STRING: compiler flag, including the dash e.g. -v --></compiler_flag>
-		</compiler_flags>
-
-		<header_search_paths>
-			<header_search_path><!-- STRING: header search path for each path a header_search_path element --></header_search_path>
-		</header_search_paths>
-
-		<!-- MAC ONLY -->
-		<framework_search_paths>
-			<framework_search_path><!-- STRING: framework search path --></framework_search_path>
-		</framework_search_paths>
-	</source>
-
 	<application>
 		<font_name><!-- STRING: font name --></font_name>
 		<font_size><!-- INTEGER: font size in pt --></font_size>
 		<color_scheme><!-- STRING: color scheme path --></color_scheme>
+
 		<font_size_max><!-- INTEGER: maximum font size in pt --></font_size_max>
 		<font_size_min><!-- INTEGER: minimum font size in pt --></font_size_min>
 		<font_size_std><!-- INTEGER: standard font size in pt --></font_size_std>
-		<indexer_thread_count><!-- INTEGER: number of threads indexing the source code --></indexer_thread_count>
+
 		<show_external_non_fatal_errors><!-- BOOL: show non-fatal errors in unindexed files --></show_external_non_fatal_errors>
+
 		<window_base_width><!-- INTEGER: initial width of an overlay window --></window_base_width>
 		<window_base_height><!-- INTEGER: initial height of an overlay window --></window_base_height>
+
+		<scroll_speed><!-- DECIMAL: multiplier for default scroll speed in views --></scroll_speed>
 	</application>
 
+	<indexing>
+		<indexer_thread_count><!-- INTEGER: number of threads indexing the source code --></indexer_thread_count>
+
+		<cxx>
+			<compiler_flags>
+				<compiler_flag><!-- STRING: compiler flag, including the dash e.g. -v --></compiler_flag>
+			</compiler_flags>
+
+			<header_search_paths>
+				<header_search_path><!-- STRING: header search path for each path a header_search_path element --></header_search_path>
+			</header_search_paths>
+
+			<!-- MAC ONLY -->
+			<framework_search_paths>
+				<framework_search_path><!-- STRING: framework search path --></framework_search_path>
+			</framework_search_paths>
+		</cxx>
+
+		<java>
+			<java_path><!-- STRING: path java installation on Windows e.g. .../java/JDK/jre/bin --></java_path>
+			<java_maximum_memory><!-- INTEGER: memory in MB used by java indexer --></java_maximum_memory>
+		</java>
+	</indexing>
+
 	<code>
 		<tab_width><!-- INTEGER: number of spaces to represent a tab in code files --></tab_width>
 
@@ -48,6 +61,7 @@
 		<recent_projects>
 			<recent_project><!-- STRING: recent project path --></recent_project>
 		</recent_projects>
+
 		<license>
 			<check><!-- STRING: hashed path of the working directory used when entering the license key --></check>
 			<license><!-- STRING: the license key --></license>

src/lib/Application.cpp

@@ -5,6 +5,7 @@
 #include "utility/messaging/MessageQueue.h"
 #include "utility/messaging/type/MessageActivateNodes.h"
 #include "utility/messaging/type/MessageDispatchWhenLicenseValid.h"
+#include "utility/messaging/type/MessageScrollSpeedChange.h"
 #include "utility/messaging/type/MessageStatus.h"
 #include "utility/messaging/type/MessageShowStartScreen.h"
 #include "utility/scheduling/TaskScheduler.h"
@@ -72,6 +73,7 @@ void Application::loadSettings()
 {
 	std::shared_ptr<ApplicationSettings> settings = ApplicationSettings::getInstance();
 	settings->load(FilePath(UserPaths::getAppSettingsPath()));
+
 	loadStyle(settings->getColorSchemePath());
 }
 

src/lib/settings/ApplicationSettings.cpp

@@ -113,6 +113,16 @@ int ApplicationSettings::getWindowBaseHeight() const
 	return getValue<int>("application/window_base_height", 500);
 }
 
+float ApplicationSettings::getScrollSpeed() const
+{
+	return getValue<float>("application/scroll_speed", 1.0f);
+}
+
+void ApplicationSettings::setScrollSpeed(float scrollSpeed)
+{
+	setValue<float>("application/scroll_speed", scrollSpeed);
+}
+
 int ApplicationSettings::getIndexerThreadCount() const
 {
 	return getValue<int>("indexing/indexer_thread_count", 4);

src/lib/settings/ApplicationSettings.h

@@ -39,6 +39,10 @@ public:
 	int getWindowBaseWidth() const;
 	int getWindowBaseHeight() const;
 
+	float getScrollSpeed() const;
+	void setScrollSpeed(float scrollSpeed);
+
+	// indexing
 	int getIndexerThreadCount() const;
 	void setIndexerThreadCount(const int count);
 

src/lib/utility/messaging/type/MessageScrollSpeedChange.h

@@ -0,0 +1,28 @@
+#ifndef MESSAGE_SCROLL_SPEED_CHANGE_H
+#define MESSAGE_SCROLL_SPEED_CHANGE_H
+
+#include "utility/messaging/Message.h"
+
+class MessageScrollSpeedChange
+	: public Message<MessageScrollSpeedChange>
+{
+public:
+	MessageScrollSpeedChange(float scrollSpeed)
+		: scrollSpeed(scrollSpeed)
+	{
+	}
+
+	static const std::string getStaticType()
+	{
+		return "MessageScrollSpeedChange";
+	}
+
+	virtual void print(std::ostream& os) const
+	{
+		os << scrollSpeed;
+	}
+
+	const float scrollSpeed;
+};
+
+#endif // MESSAGE_SCROLL_SPEED_CHANGE_H

src/lib_gui/CMakeLists.txt

@@ -60,6 +60,8 @@ add_files(
 	qt/utility/QtDeviceScaledPixmap.h
 	qt/utility/QtHighlighter.cpp
 	qt/utility/QtHighlighter.h
+	qt/utility/QtScrollSpeedChangeListener.cpp
+	qt/utility/QtScrollSpeedChangeListener.h
 	qt/utility/QtThreadedFunctor.h
 	qt/utility/utilityQt.cpp
 	qt/utility/utilityQt.h

src/lib_gui/qt/element/QtAutocompletionList.cpp

@@ -204,6 +204,9 @@ QtAutocompletionList::QtAutocompletionList(QWidget* parent)
 	setModelSorting(QCompleter::UnsortedModel);
 	setCompletionPrefix("");
 	setMaxVisibleItems(20);
+
+	m_scrollSpeedChangeListenerHorizontal.setScrollBar(list->horizontalScrollBar());
+	m_scrollSpeedChangeListenerVertical.setScrollBar(list->verticalScrollBar());
 }
 
 QtAutocompletionList::~QtAutocompletionList()

src/lib_gui/qt/element/QtAutocompletionList.h

@@ -10,6 +10,7 @@
 #include <QListView>
 
 #include "data/search/SearchMatch.h"
+#include "qt/utility/QtScrollSpeedChangeListener.h"
 
 class QtAutocompletionModel
 	: public QAbstractTableModel
@@ -70,6 +71,9 @@ private slots:
 private:
 	std::shared_ptr<QtAutocompletionModel> m_model;
 	std::shared_ptr<QtAutocompletionDelegate> m_delegate;
+
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListenerHorizontal;
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListenerVertical;
 };
 
 #endif // QT_AUTOCOMPLETION_LIST

src/lib_gui/qt/element/QtCodeArea.cpp

@@ -1,13 +1,13 @@
 #include "qt/element/QtCodeArea.h"
 
-#include <qapplication.h>
+#include <QApplication>
 #include <QFont>
 #include <QHBoxLayout>
-#include <qmenu.h>
+#include <QMenu>
 #include <QPainter>
 #include <QPushButton>
+#include <QScrollBar>
 #include <QToolTip>
-#include <qscrollbar.h>
 
 #include "utility/messaging/type/MessageActivateLocalSymbols.h"
 #include "utility/messaging/type/MessageActivateTokenLocations.h"
@@ -130,6 +130,7 @@ QtCodeArea::QtCodeArea(
 
 	// MouseWheelOverScrollbarFilter is deleted by parent.
 	horizontalScrollBar()->installEventFilter(new MouseWheelOverScrollbarFilter(this));
+	m_scrollSpeedChangeListener.setScrollBar(horizontalScrollBar());
 
 	createActions();
 

src/lib_gui/qt/element/QtCodeArea.h

@@ -8,6 +8,7 @@
 #include <QPlainTextEdit>
 
 #include "data/location/LocationType.h"
+#include "qt/utility/QtScrollSpeedChangeListener.h"
 #include "utility/types.h"
 
 class QDragMoveEvent;
@@ -190,6 +191,8 @@ private:
 
 	std::vector<int> m_lineLengths;
 	int m_endTextEditPosition;
+
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListener;
 };
 
 #endif // QT_CODE_AREA_H

src/lib_gui/qt/element/QtCodeNavigator.cpp

@@ -80,6 +80,8 @@ QtCodeNavigator::QtCodeNavigator(QWidget* parent)
 	m_scrollArea->setWidgetResizable(true);
 	m_scrollArea->setWidget(m_list);
 
+	m_scrollSpeedChangeListener.setScrollBar(m_scrollArea->verticalScrollBar());
+
 	connect(m_scrollArea->verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(scrolled(int)));
 	connect(this, SIGNAL(shouldScrollToSnippet(QtCodeSnippet*, uint)),
 		this, SLOT(scrollToSnippet(QtCodeSnippet*, uint)), Qt::QueuedConnection);

src/lib_gui/qt/element/QtCodeNavigator.h

@@ -5,6 +5,7 @@
 #include <QScrollArea>
 
 #include "qt/element/QtCodeFileList.h"
+#include "qt/utility/QtScrollSpeedChangeListener.h"
 #include "qt/utility/QtThreadedFunctor.h"
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageCodeReference.h"
@@ -125,6 +126,8 @@ private:
 	QtCodeFile* m_scrollToFile;
 	uint m_scrollToLine;
 	Id m_scrollToLocationId;
+
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListener;
 };
 
 #endif // QT_CODE_NAVIGATOR_H

src/lib_gui/qt/utility/QtScrollSpeedChangeListener.cpp

@@ -0,0 +1,35 @@
+#include "qt/utility/QtScrollSpeedChangeListener.h"
+
+#include <cmath>
+
+#include <QScrollBar>
+
+#include "settings/ApplicationSettings.h"
+
+QtScrollSpeedChangeListener::QtScrollSpeedChangeListener()
+	: m_changeScrollSpeedFunctor(std::bind(&QtScrollSpeedChangeListener::doChangeScrollSpeed, this, std::placeholders::_1))
+	, m_scrollBar(nullptr)
+	, m_singleStep(1)
+{
+}
+
+void QtScrollSpeedChangeListener::setScrollBar(QScrollBar* scrollbar)
+{
+	m_scrollBar = scrollbar;
+	m_singleStep = scrollbar->singleStep();
+
+	doChangeScrollSpeed(ApplicationSettings::getInstance()->getScrollSpeed());
+}
+
+void QtScrollSpeedChangeListener::handleMessage(MessageScrollSpeedChange* message)
+{
+	m_changeScrollSpeedFunctor(message->scrollSpeed);
+}
+
+void QtScrollSpeedChangeListener::doChangeScrollSpeed(float scrollSpeed)
+{
+	if (m_scrollBar)
+	{
+		m_scrollBar->setSingleStep(std::ceil(m_singleStep * scrollSpeed));
+	}
+}

src/lib_gui/qt/utility/QtScrollSpeedChangeListener.h

@@ -0,0 +1,30 @@
+#ifndef QT_SCROLL_SPEED_CHANGE_LISTENER
+#define QT_SCROLL_SPEED_CHANGE_LISTENER
+
+#include "utility/messaging/MessageListener.h"
+#include "utility/messaging/type/MessageScrollSpeedChange.h"
+
+#include "qt/utility/QtThreadedFunctor.h"
+
+class QScrollBar;
+
+class QtScrollSpeedChangeListener
+	: public MessageListener<MessageScrollSpeedChange>
+{
+public:
+	QtScrollSpeedChangeListener();
+
+	void setScrollBar(QScrollBar* scrollbar);
+
+private:
+	void handleMessage(MessageScrollSpeedChange* message);
+
+	void doChangeScrollSpeed(float scrollSpeed);
+
+	QtThreadedFunctor<float> m_changeScrollSpeedFunctor;
+
+	QScrollBar* m_scrollBar;
+	int m_singleStep;
+};
+
+#endif // QT_SCROLL_SPEED_CHANGE_LISTENER

src/lib_gui/qt/view/QtGraphView.cpp

@@ -13,12 +13,12 @@
 #include "component/controller/helper/DummyNode.h"
 #include "component/controller/helper/GraphPostprocessor.h"
 #include "component/view/GraphViewStyle.h"
+#include "settings/ColorScheme.h"
 #include "utility/messaging/type/MessageDeactivateEdge.h"
 #include "utility/ResourcePaths.h"
 
-#include "qt/utility/utilityQt.h"
-
 #include "qt/graphics/QtGraphicsView.h"
+#include "qt/utility/utilityQt.h"
 #include "qt/view/QtViewWidgetWrapper.h"
 #include "qt/view/graphElements/nodeComponents/QtGraphNodeComponentClickable.h"
 #include "qt/view/graphElements/nodeComponents/QtGraphNodeComponentMoveable.h"
@@ -27,7 +27,6 @@
 #include "qt/view/graphElements/QtGraphNodeBundle.h"
 #include "qt/view/graphElements/QtGraphNodeData.h"
 #include "qt/view/graphElements/QtGraphNodeExpandToggle.h"
-#include "settings/ColorScheme.h"
 
 QtGraphView::QtGraphView(ViewLayout* viewLayout)
 	: GraphView(viewLayout)
@@ -72,6 +71,9 @@ void QtGraphView::initView()
 
 	connect(view, SIGNAL(emptySpaceClicked()), this, SLOT(clickedInEmptySpace()));
 
+	m_scrollSpeedChangeListenerHorizontal.setScrollBar(view->horizontalScrollBar());
+	m_scrollSpeedChangeListenerVertical.setScrollBar(view->verticalScrollBar());
+
 	doRefreshView();
 }
 
@@ -305,10 +307,12 @@ void QtGraphView::doRefreshView()
 	doClear();
 	doResize();
 
-	std::string css = utility::getStyleSheet(ResourcePaths::getGuiPath() + "graph_view/graph_view.css");
-	getView()->setStyleSheet(css.c_str());
+	QtGraphicsView* view = getView();
 
-	getView()->setAppZoomFactor(GraphViewStyle::getZoomFactor());
+	std::string css = utility::getStyleSheet(ResourcePaths::getGuiPath() + "graph_view/graph_view.css");
+	view->setStyleSheet(css.c_str());
+
+	view->setAppZoomFactor(GraphViewStyle::getZoomFactor());
 }
 
 std::shared_ptr<QtGraphNode> QtGraphView::findNodeRecursive(const std::list<std::shared_ptr<QtGraphNode>>& nodes, Id tokenId)

src/lib_gui/qt/view/QtGraphView.h

@@ -5,6 +5,7 @@
 #include <QPointF>
 
 #include "component/view/GraphView.h"
+#include "qt/utility/QtScrollSpeedChangeListener.h"
 #include "qt/utility/QtThreadedFunctor.h"
 #include "utility/types.h"
 
@@ -110,6 +111,9 @@ private:
 
 	std::shared_ptr<QSequentialAnimationGroup> m_transition;
 	QPointF m_sceneRectOffset;
+
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListenerHorizontal;
+	QtScrollSpeedChangeListener m_scrollSpeedChangeListenerVertical;
 };
 
 #endif // QT_GRAPH_VIEW_H

src/lib_gui/qt/window/QtMainWindow.cpp

@@ -10,6 +10,7 @@
 #include <QSysInfo>
 #include <QTimer>
 
+#include "Application.h"
 #include "component/view/View.h"
 #include "component/view/CompositeView.h"
 #include "qt/utility/QtContextMenu.h"
@@ -21,7 +22,6 @@
 #include "qt/window/QtAbout.h"
 #include "qt/window/QtLicense.h"
 #include "settings/ApplicationSettings.h"
-#include "Application.h"
 #include "utility/file/FileSystem.h"
 #include "utility/logging/logging.h"
 #include "utility/messaging/type/MessageCodeReference.h"

src/lib_gui/qt/window/project_wizzard/QtProjectWizzard.cpp

@@ -23,6 +23,7 @@
 #include "utility/messaging/type/MessageDispatchWhenLicenseValid.h"
 #include "utility/messaging/type/MessageLoadProject.h"
 #include "utility/messaging/type/MessageRefresh.h"
+#include "utility/messaging/type/MessageScrollSpeedChange.h"
 #include "utility/messaging/type/MessageStatus.h"
 #include "utility/solution/SolutionParserVisualStudio.h"
 #include "utility/utilityString.h"
@@ -37,9 +38,11 @@ QtProjectWizzard::QtProjectWizzard(QWidget* parent)
 	connect(&m_windowStack, SIGNAL(push()), this, SLOT(windowStackChanged()));
 	connect(&m_windowStack, SIGNAL(pop()), this, SLOT(windowStackChanged()));
 
+	// save old application settings so they can be compared later
 	ApplicationSettings* appSettings = ApplicationSettings::getInstance().get();
 	m_appSettings.setHeaderSearchPaths(appSettings->getHeaderSearchPaths());
 	m_appSettings.setFrameworkSearchPaths(appSettings->getFrameworkSearchPaths());
+	m_appSettings.setScrollSpeed(appSettings->getScrollSpeed());
 
 	m_parserManager = std::make_shared<SolutionParserManager>();
 
@@ -699,6 +702,11 @@ void QtProjectWizzard::savePreferences()
 {
 	bool appSettingsChanged = !(m_appSettings == *ApplicationSettings::getInstance().get());
 
+	if (m_appSettings.getScrollSpeed() != ApplicationSettings::getInstance()->getScrollSpeed())
+	{
+		MessageScrollSpeedChange(ApplicationSettings::getInstance()->getScrollSpeed()).dispatch();
+	}
+
 	if (appSettingsChanged)
 	{
 		Project* currentProject = Application::getInstance()->getCurrentProject().get();

src/lib_gui/qt/window/project_wizzard/QtProjectWizzardContentPreferences.cpp

@@ -84,8 +84,21 @@ void QtProjectWizzardContentPreferences::populateForm(QGridLayout* layout, int&
 	layout->addWidget(m_colorSchemes, row, QtProjectWizzardWindow::BACK_COL, Qt::AlignLeft);
 	row++;
 
-	layout->setRowMinimumHeight(row++, 20);
+	// scroll speed
+	m_scrollSpeed = new QLineEdit();
+	m_scrollSpeed->setObjectName("name");
+	m_scrollSpeed->setAttribute(Qt::WA_MacShowFocusRect, 0);
 
+	layout->addWidget(createFormLabel("Scroll Speed"), row, QtProjectWizzardWindow::FRONT_COL, Qt::AlignRight);
+	layout->addWidget(m_scrollSpeed, row, QtProjectWizzardWindow::BACK_COL);
+
+	addHelpButton(
+		"Multiplier for scroll speed. Set to a value between 0 and 1 to scroll slower, or set to larger than 1 to scroll faster."
+		, layout, row
+	);
+	row++;
+
+	layout->setRowMinimumHeight(row++, 20);
 
 	// indexing
 	layout->addWidget(createFormTitle("INDEXING"), row, QtProjectWizzardWindow::FRONT_COL, Qt::AlignLeft);
@@ -142,6 +155,8 @@ void QtProjectWizzardContentPreferences::load()
 		}
 	}
 
+	m_scrollSpeed->setText(QString::number(appSettings->getScrollSpeed(), 'f', 1));
+
 	m_threads->setCurrentIndex(appSettings->getIndexerThreadCount() - 1);
 	m_fatalErrors->setChecked(appSettings->getShowExternalNonFatalErrors());
 }
@@ -158,6 +173,12 @@ void QtProjectWizzardContentPreferences::save()
 	appSettings->setColorSchemePath(m_colorSchemePaths[m_colorSchemes->currentIndex()]);
 	m_oldColorSchemeIndex = -1;
 
+	float scrollSpeed = m_scrollSpeed->text().toFloat();
+	if (scrollSpeed)
+	{
+		appSettings->setScrollSpeed(scrollSpeed);
+	}
+
 	appSettings->setIndexerThreadCount(m_threads->currentIndex() + 1);
 	appSettings->setShowExternalNonFatalErrors(m_fatalErrors->isChecked());
 }

src/lib_gui/qt/window/project_wizzard/QtProjectWizzardContentPreferences.h

@@ -32,6 +32,7 @@ private:
 	QComboBox* m_fontSize;
 	QComboBox* m_tabWidth;
 	QComboBox* m_colorSchemes;
+	QLineEdit* m_scrollSpeed;
 
 	QComboBox* m_threads;
 	QCheckBox* m_fatalErrors;