ComponentList now only scrolls if content > size.

ComponentList now has a default input handler behavior (forward to
rightmost component in row).
ComponentList now updates the currently selected row.
GuiSettingsMenu has been redone to use the new
MenuComponent/ComponentList scheme.
GuiMenu refactored slightly to be less needlessly ridiculous.

src/components/ComponentList.cpp

@@ -31,6 +31,8 @@ void ComponentList::onSizeChanged()
 		updateElementSize(it->data);
 		updateElementPosition(it->data);
 	}
+
+	onCursorChanged(mScrollVelocity != 0 ? CURSOR_SCROLLING : CURSOR_STOPPED);
 }
 
 bool ComponentList::input(InputConfig* config, Input input)
@@ -39,8 +41,19 @@ bool ComponentList::input(InputConfig* config, Input input)
 		return false;
 
 	// give it to the current row's input handler
-	if(mEntries.at(mCursor).data.input_handler && mEntries.at(mCursor).data.input_handler(config, input))
+	if(mEntries.at(mCursor).data.input_handler)
+	{
+		if(mEntries.at(mCursor).data.input_handler(config, input))
 			return true;
+	}else{
+		// no input handler assigned, do the default, which is to give it to the rightmost element in the row
+		auto& row = mEntries.at(mCursor).data;
+		if(row.elements.size())
+		{
+			if(row.elements.back().component->input(config, input))
+				return true;
+		}
+	}
 
 	// input handler didn't consume the input - try to scroll
 	if(config->isMappedTo("up", input))
@@ -57,6 +70,13 @@ bool ComponentList::input(InputConfig* config, Input input)
 void ComponentList::update(int deltaTime)
 {
 	listUpdate(deltaTime);
+
+	if(size())
+	{
+		// update our currently selected row
+		for(auto it = mEntries.at(mCursor).data.elements.begin(); it != mEntries.at(mCursor).data.elements.end(); it++)
+			it->component->update(deltaTime);
+	}
 }
 
 void ComponentList::onCursorChanged(const CursorState& state)
@@ -69,12 +89,17 @@ void ComponentList::onCursorChanged(const CursorState& state)
 		mSelectorBarOffset += getRowHeight(mEntries.at(i).data);
 	}
 
+	// move the camera to scroll
+	const float totalHeight = getTotalRowHeight();
+	if(totalHeight > mSize.y())
+	{
 		mCameraOffset = mSelectorBarOffset - (mSize.y() / 2);
 
 		if(mCameraOffset < 0)
 			mCameraOffset = 0;
-	else if(mCameraOffset + mSize.y() > getTotalRowHeight())
+		else if(mCameraOffset + mSize.y() > totalHeight)
-		mCameraOffset = getTotalRowHeight() - mSize.y();
+			mCameraOffset = totalHeight - mSize.y();
+	}
 }
 
 void ComponentList::render(const Eigen::Affine3f& parentTrans)

src/components/ComponentList.h

@@ -14,12 +14,30 @@ struct ComponentListElement
 struct ComponentListRow
 {
 	std::vector<ComponentListElement> elements;
+
+	// The input handler is called when the user enters any input while this row is highlighted (including up/down).
+	// Return false to let the list try to use it or true if the input has been consumed.
+	// If no input handler is supplied (input_handler == nullptr), the default behavior is to forward the input to 
+	// the rightmost element in the currently selected row.
 	std::function<bool(InputConfig*, Input)> input_handler;
 	
 	inline void addElement(const std::shared_ptr<GuiComponent>& component, bool resize_width)
 	{
 		elements.push_back(ComponentListElement(component, resize_width));
 	}
+
+	// Utility method for making an input handler for "when the users presses A on this, do func."
+	inline void makeAcceptInputHandler(const std::function<void()>& func)
+	{
+		input_handler = [func](InputConfig* config, Input input) -> bool {
+			if(config->isMappedTo("a", input) && input.value != 0)
+			{
+				func();
+				return true;
+			}
+			return false;
+		};
+	}
 };
 
 class ComponentList : public IList<ComponentListRow, void*>

src/guis/GuiMenu.cpp

@@ -10,97 +10,68 @@
 
 GuiMenu::GuiMenu(Window* window) : GuiComponent(window), mMenu(window, "Main Menu")
 {
-	struct MenuEntry
+	setSize((float)Renderer::getScreenWidth(), (float)Renderer::getScreenHeight());
-	{
+	mMenu.setPosition((mSize.x() - mMenu.getSize().x()) / 2, (mSize.y() - mMenu.getSize().y()) / 2);
-		const char* name;
-		unsigned int color;
-		bool add_arrow;
-		std::function<void()> func;
 
-		MenuEntry(const char* n, unsigned int c, bool a, std::function<void()> f) : name(n), color(c), add_arrow(a), func(f) {};
+	// populate our list
-	};
+	addEntry("GENERAL SETTINGS", 0x777777FF, true, 
-
-	std::vector<MenuEntry> entries;
-
-	entries.push_back(
-		MenuEntry("GENERAL SETTINGS", 0x777777FF, true, 
 		[this] { mWindow->pushGui(new GuiSettingsMenu(mWindow)); }
-		)
 	);
-	entries.push_back(
+
-		MenuEntry("SCRAPE NOW", 0x777777FF, true, 
+	addEntry("SCRAPE NOW", 0x777777FF, true, 
 		[this] { mWindow->pushGui(new GuiScraperStart(mWindow)); }
-		)
 	);
 
-	
+	addEntry("RESTART SYSTEM", 0x990000FF, false, 
-	entries.push_back(
-		MenuEntry("RESTART SYSTEM", 0x990000FF, false, 
 		[this] {
 			mWindow->pushGui(new GuiMsgBoxYesNo(mWindow, "Do you really want to restart the system?",
 			[] { 
 				if(system("sudo shutdown -r now") != 0)
 					LOG(LogWarning) << "Restart terminated with non-zero result!";
-					}));
 			})
+		);}
 	);
 
-	entries.push_back(
+	addEntry("SHUTDOWN SYSTEM", 0x990000FF, false, 
-		MenuEntry("SHUTDOWN SYSTEM", 0x990000FF, false, 
 		[this] {
 			mWindow->pushGui(new GuiMsgBoxYesNo(mWindow, "Do you really want to shutdown the system?",
 				[] { 
 					if(system("sudo shutdown -h now") != 0)
 						LOG(LogWarning) << "Shutdown terminated with non-zero result!";
 				}));
-			})
+		}
 	);
 
 	if(!Settings::getInstance()->getBool("DONTSHOWEXIT"))
 	{
-		entries.push_back(
+		addEntry("EXIT EMULATIONSTATION", 0x990000FF, false,
-			MenuEntry("EXIT EMULATIONSTATION", 0x990000FF, false,
 			[] {
 				SDL_Event ev;
 				ev.type = SDL_QUIT;
 				SDL_PushEvent(&ev);
-				})
+			}
 		);
 	}
 	
-	setSize((float)Renderer::getScreenWidth(), (float)Renderer::getScreenHeight());
+	addChild(&mMenu);
-	mMenu.setPosition((mSize.x() - mMenu.getSize().x()) / 2, (mSize.y() - mMenu.getSize().y()) / 2);
+}
 
+void GuiMenu::addEntry(const char* name, unsigned int color, bool add_arrow, const std::function<void()>& func)
+{
 	std::shared_ptr<Font> font = Font::get(FONT_SIZE_LARGE);
 	
 	// populate the list
 	ComponentListRow row;
+	row.addElement(std::make_shared<TextComponent>(mWindow, name, font, color), true);
 
-	for(unsigned int i = 0; i < entries.size(); i++)
+	if(add_arrow)
-	{
+		row.addElement(std::make_shared<TextComponent>(mWindow, ">", font, color), false);
-		row.elements.clear();
-		row.addElement(std::make_shared<TextComponent>(mWindow, entries[i].name, font, entries[i].color), true);
 
-		if(entries[i].add_arrow)
+	row.makeAcceptInputHandler(func);
-			row.addElement(std::make_shared<TextComponent>(mWindow, ">", font, entries[i].color), false);
-
-		std::function<void()>& execFunc = entries[i].func;
-		row.input_handler = [execFunc](InputConfig* config, Input input) -> bool
-			{
-				if(config->isMappedTo("a", input) && input.value != 0)
-				{
-					execFunc();
-					return true;
-				}
-				return false;
-		};
 
 	mMenu.addRow(row);
 }
 
-	addChild(&mMenu);
-}
-
 bool GuiMenu::input(InputConfig* config, Input input)
 {
 	if((config->isMappedTo("b", input) || config->isMappedTo("menu", input)) && input.value != 0)

src/guis/GuiMenu.h

@@ -12,5 +12,7 @@ public:
 	bool input(InputConfig* config, Input input) override;
 
 private:
+	void addEntry(const char* name, unsigned int color, bool add_arrow, const std::function<void()>& func);
+
 	MenuComponent mMenu;
 };

src/guis/GuiSettingsMenu.cpp

@@ -2,120 +2,88 @@
 #include "../Renderer.h"
 #include "../Settings.h"
 #include "../VolumeControl.h"
-
+#include "../Log.h"
 #include "../scrapers/TheArchiveScraper.h"
 #include "../scrapers/GamesDBScraper.h"
 
 GuiSettingsMenu::GuiSettingsMenu(Window* window) : GuiComponent(window),
-	mList(window, Eigen::Vector2i(2, 8)), 
+	mMenu(mWindow, "Settings")
-	mBox(mWindow, ":/frame.png", 0x444444FF),
-	mDrawFramerateSwitch(window),
-	mVolumeSlider(window, 0, 100, 1, "%"),
-	mDisableSoundsSwitch(window, false),
-	mScraperOptList(window), 
-	mScrapeRatingsSwitch(window), 
-	mDimSlider(window, 0, 60, 1, "s"),
-	mDisableHelpSwitch(window),
-	mSaveButton(window)
 {
-	loadStates();
+	setSize((float)Renderer::getScreenWidth(), (float)Renderer::getScreenHeight());
 
-	addChild(&mBox);
+	// center menu
-	addChild(&mList);
+	mMenu.setPosition((mSize.x() - mMenu.getSize().x()) / 2, (mSize.y() - mMenu.getSize().y()) / 2);
-
-	mList.setPosition(Renderer::getScreenWidth() / 4.0f, 0);
 
 	using namespace Eigen;
 
-	//drawFramerate label
+	Settings* s = Settings::getInstance();
-	TextComponent* label = new TextComponent(mWindow);
-	label->setText("Draw Framerate: ");
-	label->setColor(0x0000FFFF);
-	mList.setEntry(Vector2i(0, 0), Vector2i(1, 1), label, false, ComponentGrid::AlignRight, Matrix<bool, 1, 2>(true, true));
-	mLabels.push_back(label);
 
-	//drawFramerate switch
+	// framerate
-	mList.setEntry(Vector2i(1, 0), Vector2i(1, 1), &mDrawFramerateSwitch, true, ComponentGrid::AlignCenter, Matrix<bool, 1, 2>(true, true));
+	auto framerate = std::make_shared<SwitchComponent>(mWindow);
+	framerate->setState(s->getBool("DRAWFRAMERATE"));
+	addSetting("Draw framerate:", framerate, 
+		[framerate] { Settings::getInstance()->setBool("DRAWFRAMERATE", framerate->getState()); });
 
-	//volume label
+	// volume
-	label = new TextComponent(mWindow);
+	auto volume = std::make_shared<SliderComponent>(mWindow, 0.f, 100.f, 1.f, "%");
-	label->setText("System volume: ");
+	volume->setValue((float)VolumeControl::getInstance()->getVolume());
-	label->setColor(0x0000FFFF);
+	addSetting("System volume:", volume,
-	mLabels.push_back(label);
+		[volume] { VolumeControl::getInstance()->setVolume((int)volume->getValue()); });
-	mList.setEntry(Vector2i(0, 1), Vector2i(1, 1), label, false, ComponentGrid::AlignRight, Matrix<bool, 1, 2>(true, true));
-
-	//volume slider
-	mList.setEntry(Vector2i(1, 1), Vector2i(1, 1), &mVolumeSlider, true, ComponentGrid::AlignCenter, Matrix<bool, 1, 2>(true, true));
 
 	// disable sounds
-	label = new TextComponent(mWindow);
+	auto sound_disable = std::make_shared<SwitchComponent>(mWindow);
-	label->setText("Disable sounds: ");
+	sound_disable->setState(s->getBool("DISABLESOUNDS"));
-	label->setColor(0x0000FFFF);
+	addSetting("Disable sound:", sound_disable, 
-	mLabels.push_back(label);
+		[sound_disable] { Settings::getInstance()->setBool("DISABLESOUNDS", sound_disable->getState()); });
-	mList.setEntry(Vector2i(0, 2), Vector2i(1, 1), label, false, ComponentGrid::AlignRight, Matrix<bool, 1, 2>(true, true));
 
-	mList.setEntry(Vector2i(1, 2), Vector2i(1, 1), &mDisableSoundsSwitch, true, ComponentGrid::AlignCenter, Matrix<bool, 1, 2>(true, true));
+	// scraper
-
+	auto scraper_list = std::make_shared< OptionListComponent< std::shared_ptr<Scraper> > >(mWindow, false);
-	//scraper label
-	label = new TextComponent(mWindow);
-	label->setText("Scraper: ");
-	label->setColor(0x0000FFFF);
-	mLabels.push_back(label);
-	mList.setEntry(Vector2i(0, 3), Vector2i(1, 1), label, false, ComponentGrid::AlignRight);
-
-	//fill scraper list
 	std::vector< std::shared_ptr<Scraper> > scrapers;
-	scrapers.push_back(std::shared_ptr<Scraper>(new GamesDBScraper()));
+	scrapers.push_back(std::make_shared<GamesDBScraper>());
-	scrapers.push_back(std::shared_ptr<Scraper>(new TheArchiveScraper()));
+	scrapers.push_back(std::make_shared<TheArchiveScraper>());
-	mScraperOptList.populate(scrapers, [&] (const std::shared_ptr<Scraper>& s) {
+	scraper_list->populate(scrapers, [&] (const std::shared_ptr<Scraper>& sc) {
-		return mScraperOptList.makeEntry(s->getName(), s, s->getName() == Settings::getInstance()->getScraper()->getName());
+		return scraper_list->makeEntry(sc->getName(), sc, sc->getName() == Settings::getInstance()->getScraper()->getName());
+	});
+	addSetting("Scraper:", scraper_list,
+		[scraper_list] { 
+			if(scraper_list->getSelected().size() > 0) 
+				Settings::getInstance()->setScraper(scraper_list->getSelected()[0]->object);
 	});
 
-	mList.setEntry(Vector2i(1, 3), Vector2i(1, 1), &mScraperOptList, true, ComponentGrid::AlignCenter);
+	// scrape ratings
+	auto scrape_ratings = std::make_shared<SwitchComponent>(mWindow);
+	scrape_ratings->setState(s->getBool("ScrapeRatings"));
+	addSetting("Scrape ratings?", scrape_ratings,
+		[scrape_ratings] { Settings::getInstance()->setBool("ScrapeRatings", scrape_ratings->getState()); });
 
-	//scrape ratings label
+	// dim time
-	label = new TextComponent(mWindow);
+	auto dim_time = std::make_shared<SliderComponent>(mWindow, 0.f, 1200.f, 30.f, "s");
-	label->setText("Scrape ratings? ");
+	dim_time->setValue((float)(s->getInt("DIMTIME") / 1000));
-	label->setColor(0x0000FFFF);
+	addSetting("Dim screen after:", dim_time,
-	mLabels.push_back(label);
+		[dim_time] { Settings::getInstance()->setInt("DIMTIME", (int)(dim_time->getValue() * 1000)); });
-	mList.setEntry(Vector2i(0, 4), Vector2i(1, 1), label, false, ComponentGrid::AlignRight);
 
-	mList.setEntry(Vector2i(1, 4), Vector2i(1, 1), &mScrapeRatingsSwitch, true, ComponentGrid::AlignCenter);
+	// disable help
-
+	auto disable_help = std::make_shared<SwitchComponent>(mWindow);
-	// dim time label
+	disable_help->setState(s->getBool("DISABLEHELP"));
-	label = new TextComponent(mWindow);
+	addSetting("Disable help:", disable_help,
-	label->setText("Dim after: ");
+		[disable_help] { Settings::getInstance()->setBool("DISABLEHELP", disable_help->getState()); });
-	label->setColor(0x0000FFFF);
-	mLabels.push_back(label);
-	mList.setEntry(Vector2i(0, 5), Vector2i(1, 1), label, false, ComponentGrid::AlignRight);
-	mList.setEntry(Vector2i(1, 5), Vector2i(1, 1), &mDimSlider, true, ComponentGrid::AlignCenter);
-
-	// disable help switch
-	label = new TextComponent(mWindow);
-	label->setText("Disable help: ");
-	label->setColor(0x0000FFFF);
-	mLabels.push_back(label);
-	mList.setEntry(Vector2i(0, 6), Vector2i(1, 1), label, false, ComponentGrid::AlignRight);
-	mList.setEntry(Vector2i(1, 6), Vector2i(1, 1), &mDisableHelpSwitch, true, ComponentGrid::AlignCenter);
 
 	// save button
-	mSaveButton.setText("SAVE", "apply & save", 0x00FF00FF);
+	ComponentListRow row;
-	mSaveButton.setPressedFunc([this] () { applyStates(); delete this; });
+	row.addElement(std::make_shared<TextComponent>(mWindow, "SAVE", Font::get(FONT_SIZE_MEDIUM), 0x777777FF), true);
-	mList.setEntry(Vector2i(0, 7), Vector2i(2, 1), &mSaveButton, true, ComponentGrid::AlignCenter, Matrix<bool, 1, 2>(false, true));
+	row.makeAcceptInputHandler(std::bind(&GuiSettingsMenu::save, this));
+	mMenu.addRow(row);
 
-	//center list
+	addChild(&mMenu);
-	mList.setPosition(Renderer::getScreenWidth() / 2 - mList.getSize().x() / 2, Renderer::getScreenHeight() / 2 - mList.getSize().y() / 2);
-
-	//set up borders/background
-	mBox.fitTo(mList.getSize(), mList.getPosition(), Eigen::Vector2f(8, 8));
 }
 
-GuiSettingsMenu::~GuiSettingsMenu()
+void GuiSettingsMenu::addSetting(const char* label, const std::shared_ptr<GuiComponent>& comp, const std::function<void()>& saveFunc)
 {
-	for(auto iter = mLabels.begin(); iter != mLabels.end(); iter++)
+	ComponentListRow row;
-	{
+	row.addElement(std::make_shared<TextComponent>(mWindow, label, Font::get(FONT_SIZE_MEDIUM), 0x777777FF), true);
-		delete *iter;
+	row.addElement(comp, false);
-	}
+	mApplyFuncs.push_back(saveFunc);
+	mMenu.addRow(row);
 }
 
 bool GuiSettingsMenu::input(InputConfig* config, Input input)
@@ -125,7 +93,7 @@ bool GuiSettingsMenu::input(InputConfig* config, Input input)
 		return true;
 
 	//cancel if b is pressed
-	if(config->isMappedTo("b", input) && input.value)
+	if(config->isMappedTo("b", input) && input.value != 0)
 	{
 		delete this;
 		return true;
@@ -134,46 +102,21 @@ bool GuiSettingsMenu::input(InputConfig* config, Input input)
 	return false;
 }
 
-void GuiSettingsMenu::loadStates()
+void GuiSettingsMenu::save()
 {
-	Settings* s = Settings::getInstance();
+	LOG(LogInfo) << "saving";
-	mDrawFramerateSwitch.setState(s->getBool("DRAWFRAMERATE"));
 
-	mVolumeSlider.setValue((float)VolumeControl::getInstance()->getVolume());
+	for(auto it = mApplyFuncs.begin(); it != mApplyFuncs.end(); it++)
+		(*it)();
 
-	mDisableSoundsSwitch.setState(s->getBool("DISABLESOUNDS"));
+	Settings::getInstance()->saveFile();
 
-	mScrapeRatingsSwitch.setState(s->getBool("ScrapeRatings"));
+	delete this;
-
-	mDimSlider.setValue((float)(s->getInt("DIMTIME") / 1000));
-
-	mDisableHelpSwitch.setState(s->getBool("DISABLEHELP"));
-}
-
-void GuiSettingsMenu::applyStates()
-{
-	Settings* s = Settings::getInstance();
-	s->setBool("DRAWFRAMERATE", mDrawFramerateSwitch.getState());
-
-	VolumeControl::getInstance()->setVolume((int)mVolumeSlider.getValue());
-
-	s->setBool("DISABLESOUNDS", mDisableSoundsSwitch.getState());
-
-	if(mScraperOptList.getSelected().size() > 0)
-		s->setScraper(mScraperOptList.getSelected()[0]->object);
-
-	s->setBool("ScrapeRatings", mScrapeRatingsSwitch.getState());
-
-	s->setInt("DIMTIME", (int)(mDimSlider.getValue() * 1000));
-
-	s->setBool("DISABLEHELP", mDisableHelpSwitch.getState());
-
-	s->saveFile();
 }
 
 std::vector<HelpPrompt> GuiSettingsMenu::getHelpPrompts()
 {
-	std::vector<HelpPrompt> prompts = mList.getHelpPrompts();
+	std::vector<HelpPrompt> prompts = mMenu.getHelpPrompts();
 	prompts.push_back(HelpPrompt("b", "discard changes"));
 	return prompts;
 }

src/guis/GuiSettingsMenu.h

@@ -1,7 +1,7 @@
 #pragma once
 
 #include "../GuiComponent.h"
-#include "../components/ComponentGrid.h"
+#include "../components/MenuComponent.h"
 #include "../components/SwitchComponent.h"
 #include "../components/SliderComponent.h"
 #include "../components/TextComponent.h"
@@ -14,28 +14,16 @@ class GuiSettingsMenu : public GuiComponent
 {
 public:
 	GuiSettingsMenu(Window* window);
-	~GuiSettingsMenu();
 	
 	bool input(InputConfig* config, Input input) override;
 
 	std::vector<HelpPrompt> getHelpPrompts() override;
 
 private:
-	void loadStates();
+	void addSetting(const char* label, const std::shared_ptr<GuiComponent>& comp, const std::function<void()>& saveFunc);
-	void applyStates();
+	void save();
 
-	ComponentGrid mList;
+	std::vector< std::function<void()> > mApplyFuncs;
 
-	NinePatchComponent mBox;
+	MenuComponent mMenu;
-
-	SwitchComponent mDrawFramerateSwitch;
-	SliderComponent mVolumeSlider;
-	SwitchComponent mDisableSoundsSwitch;
-	OptionListComponent< std::shared_ptr<Scraper> > mScraperOptList;
-	SwitchComponent mScrapeRatingsSwitch;
-	SliderComponent mDimSlider;
-	SwitchComponent mDisableHelpSwitch;
-	ButtonComponent mSaveButton;
-	
-	std::vector<GuiComponent*> mLabels;
 };