Android: Implement Autohiding button bars to cleanup screen

src/game.cpp

@@ -2173,7 +2173,7 @@ bool Game::initGui()
 #ifdef HAVE_TOUCHSCREENGUI
 
 	if (g_touchscreengui)
-		g_touchscreengui->init(texture_src, porting::getDisplayDensity());
+		g_touchscreengui->init(texture_src);
 
 #endif
 
@@ -2570,7 +2570,7 @@ void Game::processUserInput(VolatileRunFlags *flags,
 			|| guienv->hasFocus(gui_chat_console)) {
 		input->clear();
 #ifdef HAVE_TOUCHSCREENGUI
-		g_touchscreengui->Hide();
+		g_touchscreengui->hide();
 #endif
 	}
 #ifdef HAVE_TOUCHSCREENGUI

src/modalMenu.h

@@ -108,7 +108,7 @@ public:
 		this->remove();
 #ifdef HAVE_TOUCHSCREENGUI
 		if (g_touchscreengui)
-			g_touchscreengui->Show();
+			g_touchscreengui->show();
 #endif
 	}
 

src/touchscreengui.cpp

@@ -44,17 +44,8 @@ const char** touchgui_button_imagenames = (const char*[]) {
 	"down_arrow.png",
 	"left_arrow.png",
 	"right_arrow.png",
-	"inventory_btn.png",
-	"drop_btn.png",
 	"jump_btn.png",
-	"down.png",
-	"fly_btn.png",
-	"noclip_btn.png",
-	"fast_btn.png",
-	"debug_btn.png",
-	"chat_btn.png",
-	"camera_btn.png",
-	"rangeview_btn.png"
+	"down.png"
 };
 
 static irr::EKEY_CODE id2keycode(touch_gui_button_id id)
@@ -113,29 +104,13 @@ static irr::EKEY_CODE id2keycode(touch_gui_button_id id)
 
 TouchScreenGUI *g_touchscreengui;
 
-TouchScreenGUI::TouchScreenGUI(IrrlichtDevice *device, IEventReceiver* receiver):
-	m_device(device),
-	m_guienv(device->getGUIEnvironment()),
-	m_camera_yaw(0.0),
-	m_camera_pitch(0.0),
-	m_visible(false),
-	m_move_id(-1),
-	m_receiver(receiver)
-{
-	for (unsigned int i=0; i < after_last_element_id; i++) {
-		m_buttons[i].guibutton     =  0;
-		m_buttons[i].repeatcounter = -1;
-		m_buttons[i].repeatdelay   = BUTTON_REPEAT_DELAY;
-	}
-
-	m_screensize = m_device->getVideoDriver()->getScreenSize();
-}
-
-void TouchScreenGUI::loadButtonTexture(button_info* btn, const char* path, rect<s32> button_rect)
+static void load_button_texture(button_info* btn, const char* path,
+		rect<s32> button_rect, ISimpleTextureSource* tsrc, video::IVideoDriver *driver)
 {
 	unsigned int tid;
-	video::ITexture *texture = guiScalingImageButton(m_device->getVideoDriver(),
-		m_texturesource->getTexture(path, &tid), button_rect.getWidth(), button_rect.getHeight());
+	video::ITexture *texture = guiScalingImageButton(driver,
+			tsrc->getTexture(path, &tid), button_rect.getWidth(),
+			button_rect.getHeight());
 	if (texture) {
 		btn->guibutton->setUseAlphaChannel(true);
 		if (g_settings->getBool("gui_scaling_filter")) {
@@ -153,6 +128,314 @@ void TouchScreenGUI::loadButtonTexture(button_info* btn, const char* path, rect<
 		}
 }
 
+AutoHideButtonBar::AutoHideButtonBar(IrrlichtDevice *device,
+		IEventReceiver* receiver) :
+			m_texturesource(NULL),
+			m_driver(device->getVideoDriver()),
+			m_guienv(device->getGUIEnvironment()),
+			m_receiver(receiver),
+			m_active(false),
+			m_visible(true),
+			m_timeout(0),
+			m_timeout_value(3),
+			m_initialized(false),
+			m_dir(AHBB_Dir_Right_Left)
+{
+	m_screensize = device->getVideoDriver()->getScreenSize();
+
+}
+
+void AutoHideButtonBar::init(ISimpleTextureSource* tsrc,
+		const char* starter_img, int button_id, v2s32 UpperLeft,
+		v2s32 LowerRight, autohide_button_bar_dir dir, float timeout)
+{
+	m_texturesource = tsrc;
+
+	m_upper_left = UpperLeft;
+	m_lower_right = LowerRight;
+
+	/* init settings bar */
+
+	irr::core::rect<int> current_button = rect<s32>(UpperLeft.X, UpperLeft.Y,
+			LowerRight.X, LowerRight.Y);
+
+	m_starter.guibutton         = m_guienv->addButton(current_button, 0, button_id, L"", 0);
+	m_starter.guibutton->grab();
+	m_starter.repeatcounter     = -1;
+	m_starter.keycode           = KEY_OEM_8; // use invalid keycode as it's not relevant
+	m_starter.immediate_release = true;
+	m_starter.ids.clear();
+
+	load_button_texture(&m_starter, starter_img, current_button,
+			m_texturesource, m_driver);
+
+	m_dir = dir;
+	m_timeout_value = timeout;
+
+	m_initialized = true;
+}
+
+AutoHideButtonBar::~AutoHideButtonBar()
+{
+	m_starter.guibutton->setVisible(false);
+	m_starter.guibutton->drop();
+}
+
+void AutoHideButtonBar::addButton(touch_gui_button_id button_id,
+		const wchar_t* caption, const char* btn_image)
+{
+
+	if (!m_initialized) {
+		errorstream << "AutoHideButtonBar::addButton not yet initialized!"
+				<< std::endl;
+		return;
+	}
+	int button_size = 0;
+
+	if ((m_dir == AHBB_Dir_Top_Bottom) || (m_dir == AHBB_Dir_Bottom_Top)) {
+		button_size = m_lower_right.X - m_upper_left.X;
+	} else {
+		button_size = m_lower_right.Y - m_upper_left.Y;
+	}
+
+	irr::core::rect<int> current_button;
+
+	if ((m_dir == AHBB_Dir_Right_Left) || (m_dir == AHBB_Dir_Left_Right)) {
+
+		int x_start = 0;
+		int x_end = 0;
+
+		if (m_dir == AHBB_Dir_Left_Right) {
+			x_start = m_lower_right.X + (button_size * 1.25 * m_buttons.size())
+					+ (button_size * 0.25);
+			x_end = x_start + button_size;
+		} else {
+			x_end = m_upper_left.X - (button_size * 1.25 * m_buttons.size())
+					- (button_size * 0.25);
+			x_start = x_end - button_size;
+		}
+
+		current_button = rect<s32>(x_start, m_upper_left.Y, x_end,
+				m_lower_right.Y);
+	} else {
+		int y_start = 0;
+		int y_end = 0;
+
+		if (m_dir == AHBB_Dir_Top_Bottom) {
+			y_start = m_lower_right.X + (button_size * 1.25 * m_buttons.size())
+					+ (button_size * 0.25);
+			y_end = y_start + button_size;
+		} else {
+			y_end = m_upper_left.X - (button_size * 1.25 * m_buttons.size())
+					- (button_size * 0.25);
+			y_start = y_end - button_size;
+		}
+
+		current_button = rect<s32>(m_upper_left.X, y_start, m_lower_right.Y,
+				y_end);
+	}
+
+	button_info* btn       = new button_info();
+	btn->guibutton         = m_guienv->addButton(current_button, 0, button_id, caption, 0);
+	btn->guibutton->grab();
+	btn->guibutton->setVisible(false);
+	btn->guibutton->setEnabled(false);
+	btn->repeatcounter     = -1;
+	btn->keycode           = id2keycode(button_id);
+	btn->immediate_release = true;
+	btn->ids.clear();
+
+	load_button_texture(btn, btn_image, current_button, m_texturesource,
+			m_driver);
+
+	m_buttons.push_back(btn);
+}
+
+bool AutoHideButtonBar::isButton(const SEvent &event)
+{
+	IGUIElement* rootguielement = m_guienv->getRootGUIElement();
+
+	if (rootguielement == NULL) {
+		return false;
+	}
+
+	gui::IGUIElement *element = rootguielement->getElementFromPoint(
+			core::position2d<s32>(event.TouchInput.X, event.TouchInput.Y));
+
+	if (element == NULL) {
+		return false;
+	}
+
+	if (m_active) {
+		/* check for all buttons in vector */
+
+		std::vector<button_info*>::iterator iter = m_buttons.begin();
+
+		while (iter != m_buttons.end()) {
+			if ((*iter)->guibutton == element) {
+
+				SEvent* translated = new SEvent();
+				memset(translated, 0, sizeof(SEvent));
+				translated->EventType            = irr::EET_KEY_INPUT_EVENT;
+				translated->KeyInput.Key         = (*iter)->keycode;
+				translated->KeyInput.Control     = false;
+				translated->KeyInput.Shift       = false;
+				translated->KeyInput.Char        = 0;
+
+				/* add this event */
+				translated->KeyInput.PressedDown = true;
+				m_receiver->OnEvent(*translated);
+
+				/* remove this event */
+				translated->KeyInput.PressedDown = false;
+				m_receiver->OnEvent(*translated);
+
+				delete translated;
+
+				(*iter)->ids.push_back(event.TouchInput.ID);
+
+				m_timeout = 0;
+
+				return true;
+			}
+			++iter;
+		}
+	} else {
+		/* check for starter button only */
+		if (element == m_starter.guibutton) {
+			m_starter.ids.push_back(event.TouchInput.ID);
+			m_starter.guibutton->setVisible(false);
+			m_starter.guibutton->setEnabled(false);
+			m_active = true;
+			m_timeout = 0;
+
+			std::vector<button_info*>::iterator iter = m_buttons.begin();
+
+			while (iter != m_buttons.end()) {
+				(*iter)->guibutton->setVisible(true);
+				(*iter)->guibutton->setEnabled(true);
+				++iter;
+			}
+
+			return true;
+		}
+	}
+	return false;
+}
+
+bool AutoHideButtonBar::isReleaseButton(int eventID)
+{
+	std::vector<int>::iterator id = std::find(m_starter.ids.begin(),
+			m_starter.ids.end(), eventID);
+
+	if (id != m_starter.ids.end()) {
+		m_starter.ids.erase(id);
+		return true;
+	}
+
+	std::vector<button_info*>::iterator iter = m_buttons.begin();
+
+	while (iter != m_buttons.end()) {
+		std::vector<int>::iterator id = std::find((*iter)->ids.begin(),
+				(*iter)->ids.end(), eventID);
+
+		if (id != (*iter)->ids.end()) {
+			(*iter)->ids.erase(id);
+			// TODO handle settings button release
+			return true;
+		}
+		++iter;
+	}
+
+	return false;
+}
+
+void AutoHideButtonBar::step(float dtime)
+{
+	if (m_active) {
+		m_timeout += dtime;
+
+		if (m_timeout > m_timeout_value) {
+			deactivate();
+		}
+	}
+}
+
+void AutoHideButtonBar::deactivate()
+{
+	if (m_visible == true) {
+		m_starter.guibutton->setVisible(true);
+		m_starter.guibutton->setEnabled(true);
+	}
+	m_active = false;
+
+	std::vector<button_info*>::iterator iter = m_buttons.begin();
+
+	while (iter != m_buttons.end()) {
+			(*iter)->guibutton->setVisible(false);
+			(*iter)->guibutton->setEnabled(false);
+		++iter;
+	}
+}
+
+void AutoHideButtonBar::hide()
+{
+	m_visible = false;
+	m_starter.guibutton->setVisible(false);
+	m_starter.guibutton->setEnabled(false);
+
+	std::vector<button_info*>::iterator iter = m_buttons.begin();
+
+	while (iter != m_buttons.end()) {
+		(*iter)->guibutton->setVisible(false);
+		(*iter)->guibutton->setEnabled(false);
+		++iter;
+	}
+}
+
+void AutoHideButtonBar::show()
+{
+	m_visible = true;
+
+	if (m_active) {
+		std::vector<button_info*>::iterator iter = m_buttons.begin();
+
+		while (iter != m_buttons.end()) {
+			(*iter)->guibutton->setVisible(true);
+			(*iter)->guibutton->setEnabled(true);
+			++iter;
+		}
+	} else {
+		m_starter.guibutton->setVisible(true);
+		m_starter.guibutton->setEnabled(true);
+	}
+}
+
+TouchScreenGUI::TouchScreenGUI(IrrlichtDevice *device, IEventReceiver* receiver):
+	m_device(device),
+	m_guienv(device->getGUIEnvironment()),
+	m_camera_yaw(0.0),
+	m_camera_pitch(0.0),
+	m_visible(false),
+	m_move_id(-1),
+	m_receiver(receiver),
+	m_move_has_really_moved(false),
+	m_move_downtime(0),
+	m_move_sent_as_mouse_event(false),
+	// use some downlocation way off screen as init value  to avoid invalid behaviour
+	m_move_downlocation(v2s32(-10000, -10000)),
+	m_settingsbar(device, receiver),
+	m_rarecontrolsbar(device, receiver)
+{
+	for (unsigned int i=0; i < after_last_element_id; i++) {
+		m_buttons[i].guibutton     =  0;
+		m_buttons[i].repeatcounter = -1;
+		m_buttons[i].repeatdelay   = BUTTON_REPEAT_DELAY;
+	}
+
+	m_screensize = m_device->getVideoDriver()->getScreenSize();
+}
+
 void TouchScreenGUI::initButton(touch_gui_button_id id, rect<s32> button_rect,
 		std::wstring caption, bool immediate_release, float repeat_delay)
 {
@@ -166,21 +449,27 @@ void TouchScreenGUI::initButton(touch_gui_button_id id, rect<s32> button_rect,
 	btn->immediate_release = immediate_release;
 	btn->ids.clear();
 
-	loadButtonTexture(btn,touchgui_button_imagenames[id], button_rect);
+	load_button_texture(btn,touchgui_button_imagenames[id],button_rect,
+			m_texturesource, m_device->getVideoDriver());
 }
 
 static int getMaxControlPadSize(float density) {
 	return 200 * density * g_settings->getFloat("hud_scaling");
 }
 
-void TouchScreenGUI::init(ISimpleTextureSource* tsrc, float density)
+int TouchScreenGUI::getGuiButtonSize()
+{
+	u32 control_pad_size = MYMIN((2 * m_screensize.Y) / 3,
+			getMaxControlPadSize(porting::getDisplayDensity()));
+
+	return control_pad_size / 3;
+}
+
+void TouchScreenGUI::init(ISimpleTextureSource* tsrc)
 {
 	assert(tsrc != 0);
 
-	u32 control_pad_size =
-			MYMIN((2 * m_screensize.Y) / 3,getMaxControlPadSize(density));
-
-	u32 button_size      = control_pad_size / 3;
+	u32 button_size      = getGuiButtonSize();
 	m_visible            = true;
 	m_texturesource      = tsrc;
 	m_control_pad_rect   = rect<s32>(0, m_screensize.Y - 3 * button_size,
@@ -223,16 +512,6 @@ void TouchScreenGUI::init(ISimpleTextureSource* tsrc, float density)
 				}
 		}
 
-	/* init inventory button */
-	initButton(inventory_id,
-			rect<s32>(0, m_screensize.Y - (button_size/2),
-					(button_size/2), m_screensize.Y), L"inv", true);
-
-	/* init drop button */
-	initButton(drop_id,
-			rect<s32>(2.5*button_size, m_screensize.Y - (button_size/2),
-					3*button_size, m_screensize.Y), L"drop", true);
-
 	/* init jump button */
 	initButton(jump_id,
 			rect<s32>(m_screensize.X-(1.75*button_size),
@@ -249,48 +528,37 @@ void TouchScreenGUI::init(ISimpleTextureSource* tsrc, float density)
 					m_screensize.Y),
 			L"H",false);
 
-	/* init fly button */
-	initButton(fly_id,
-			rect<s32>(m_screensize.X - (0.75*button_size),
-					m_screensize.Y - (2.25*button_size),
-					m_screensize.X, m_screensize.Y - (button_size*1.5)),
-			L"fly", false, SLOW_BUTTON_REPEAT);
+	m_settingsbar.init(m_texturesource, "gear_icon.png", settings_starter_id,
+			v2s32(m_screensize.X - (button_size / 2),
+					m_screensize.Y - ((SETTINGS_BAR_Y_OFFSET + 1) * button_size)
+							+ (button_size * 0.5)),
+			v2s32(m_screensize.X,
+					m_screensize.Y - (SETTINGS_BAR_Y_OFFSET * button_size)
+							+ (button_size * 0.5)), AHBB_Dir_Right_Left,
+			3.0);
 
-	/* init noclip button */
-	initButton(noclip_id,
-			rect<s32>(m_screensize.X - (0.75*button_size), 2.25*button_size,
-					m_screensize.X, 3*button_size),
-			L"clip", false, SLOW_BUTTON_REPEAT);
+	m_settingsbar.addButton(fly_id,    L"fly",       "fly_btn.png");
+	m_settingsbar.addButton(noclip_id, L"noclip",    "noclip_btn.png");
+	m_settingsbar.addButton(fast_id,   L"fast",      "fast_btn.png");
+	m_settingsbar.addButton(debug_id,  L"debug",     "debug_btn.png");
+	m_settingsbar.addButton(camera_id, L"camera",    "camera_btn.png");
+	m_settingsbar.addButton(range_id,  L"rangeview", "rangeview_btn.png");
 
-	/* init fast button */
-	initButton(fast_id,
-			rect<s32>(m_screensize.X - (0.75*button_size), 1.5*button_size,
-					m_screensize.X, 2.25*button_size),
-			L"fast", false, SLOW_BUTTON_REPEAT);
+	m_rarecontrolsbar.init(m_texturesource, "rare_controls.png",
+			rare_controls_starter_id,
+			v2s32(0,
+					m_screensize.Y
+							- ((RARE_CONTROLS_BAR_Y_OFFSET + 1) * button_size)
+							+ (button_size * 0.5)),
+			v2s32(button_size / 2,
+					m_screensize.Y - (RARE_CONTROLS_BAR_Y_OFFSET * button_size)
+							+ (button_size * 0.5)), AHBB_Dir_Left_Right,
+			2);
 
-	/* init debug button */
-	initButton(debug_id,
-			rect<s32>(m_screensize.X - (0.75*button_size), 0.75*button_size,
-					m_screensize.X, 1.5*button_size),
-			L"dbg", false, SLOW_BUTTON_REPEAT);
+	m_rarecontrolsbar.addButton(chat_id,      L"Chat", "chat_btn.png");
+	m_rarecontrolsbar.addButton(inventory_id, L"inv",  "inventory_btn.png");
+	m_rarecontrolsbar.addButton(drop_id,      L"drop", "drop_btn.png");
 
-	/* init chat button */
-	initButton(chat_id,
-			rect<s32>(m_screensize.X - (0.75*button_size), 0,
-					m_screensize.X, 0.75*button_size),
-			L"Chat", true);
-
-	/* init camera button */
-	initButton(camera_id,
-			rect<s32>(m_screensize.X - (1.5*button_size), 0,
-					m_screensize.X - (0.75*button_size), 0.75*button_size),
-			L"cam", false, SLOW_BUTTON_REPEAT);
-
-	/* init rangeselect button */
-	initButton(range_id,
-			rect<s32>(m_screensize.X - (2.25*button_size), 0,
-					m_screensize.X - (1.5*button_size), 0.75*button_size),
-			L"far", false, SLOW_BUTTON_REPEAT);
 }
 
 touch_gui_button_id TouchScreenGUI::getButtonID(s32 x, s32 y)
@@ -374,7 +642,7 @@ bool TouchScreenGUI::isReleaseHUDButton(int eventID)
 	return false;
 }
 
-void TouchScreenGUI::ButtonEvent(touch_gui_button_id button,
+void TouchScreenGUI::handleButtonEvent(touch_gui_button_id button,
 		int eventID, bool action)
 {
 	button_info* btn = &m_buttons[button];
@@ -424,11 +692,15 @@ void TouchScreenGUI::handleReleaseEvent(int evt_id)
 
 	/* handle button events */
 	if (button != after_last_element_id) {
-		ButtonEvent(button, evt_id, false);
+		handleButtonEvent(button, evt_id, false);
 	}
 	/* handle hud button events */
 	else if (isReleaseHUDButton(evt_id)) {
 		/* nothing to do here */
+	} else if (m_settingsbar.isReleaseButton(evt_id)) {
+		/* nothing to do here */
+	} else if (m_rarecontrolsbar.isReleaseButton(evt_id)) {
+		/* nothing to do here */
 	}
 	/* handle the point used for moving view */
 	else if (evt_id == m_move_id) {
@@ -498,14 +770,24 @@ void TouchScreenGUI::translateEvent(const SEvent &event)
 
 		/* handle button events */
 		if (button != after_last_element_id) {
-			ButtonEvent(button,eventID,true);
-		}
-		else if (isHUDButton(event))
-		{
+			handleButtonEvent(button, eventID, true);
+			m_settingsbar.deactivate();
+			m_rarecontrolsbar.deactivate();
+		} else if (isHUDButton(event)) {
+			m_settingsbar.deactivate();
+			m_rarecontrolsbar.deactivate();
 			/* already handled in isHUDButton() */
+		} else if (m_settingsbar.isButton(event)) {
+			m_rarecontrolsbar.deactivate();
+			/* already handled in isSettingsBarButton() */
+		} else if (m_rarecontrolsbar.isButton(event)) {
+			m_settingsbar.deactivate();
+			/* already handled in isSettingsBarButton() */
 		}
 		/* handle non button events */
 		else {
+			m_settingsbar.deactivate();
+			m_rarecontrolsbar.deactivate();
 			/* if we don't already have a moving point make this the moving one */
 			if (m_move_id == -1) {
 				m_move_id                  = event.TouchInput.ID;
@@ -520,7 +802,6 @@ void TouchScreenGUI::translateEvent(const SEvent &event)
 	}
 	else if (event.TouchInput.Event == ETIE_LEFT_UP) {
 		verbosestream << "Up event for pointerid: " << event.TouchInput.ID << std::endl;
-
 		handleReleaseEvent(event.TouchInput.ID);
 	}
 	else {
@@ -582,8 +863,7 @@ void TouchScreenGUI::translateEvent(const SEvent &event)
 						->getRayFromScreenCoordinates(
 								v2s32(event.TouchInput.X,event.TouchInput.Y));
 			}
-		}
-		else {
+		} else {
 			handleChangedButton(event);
 		}
 	}
@@ -596,7 +876,7 @@ void TouchScreenGUI::handleChangedButton(const SEvent &event)
 		if (m_buttons[i].ids.empty()) {
 			continue;
 		}
-		for(std::vector<int>::iterator iter = m_buttons[i].ids.begin();
+		for (std::vector<int>::iterator iter = m_buttons[i].ids.begin();
 				iter != m_buttons[i].ids.end(); ++iter) {
 
 			if (event.TouchInput.ID == *iter) {
@@ -609,12 +889,12 @@ void TouchScreenGUI::handleChangedButton(const SEvent &event)
 				}
 
 				/* remove old button */
-				ButtonEvent((touch_gui_button_id) i,*iter,false);
+				handleButtonEvent((touch_gui_button_id) i,*iter,false);
 
 				if (current_button_id == after_last_element_id) {
 					return;
 				}
-				ButtonEvent((touch_gui_button_id) current_button_id,*iter,true);
+				handleButtonEvent((touch_gui_button_id) current_button_id,*iter,true);
 				return;
 
 			}
@@ -628,8 +908,11 @@ void TouchScreenGUI::handleChangedButton(const SEvent &event)
 	}
 
 	button_info* btn = &m_buttons[current_button_id];
-	if (std::find(btn->ids.begin(),btn->ids.end(), event.TouchInput.ID) == btn->ids.end()) {
-		ButtonEvent((touch_gui_button_id) current_button_id,event.TouchInput.ID,true);
+	if (std::find(btn->ids.begin(),btn->ids.end(), event.TouchInput.ID)
+			== btn->ids.end())
+	{
+		handleButtonEvent((touch_gui_button_id) current_button_id,
+				event.TouchInput.ID, true);
 	}
 
 }
@@ -643,7 +926,7 @@ bool TouchScreenGUI::doubleTapDetection()
 	m_key_events[1].x         = m_move_downlocation.X;
 	m_key_events[1].y         = m_move_downlocation.Y;
 
-	u32 delta = porting::getDeltaMs(m_key_events[0].down_time,getTimeMs());
+	u32 delta = porting::getDeltaMs(m_key_events[0].down_time, getTimeMs());
 	if (delta > 400)
 		return false;
 
@@ -652,11 +935,11 @@ bool TouchScreenGUI::doubleTapDetection()
 			(m_key_events[0].y - m_key_events[1].y) * (m_key_events[0].y - m_key_events[1].y));
 
 
-	if (distance >(20 + g_settings->getU16("touchscreen_threshold")))
+	if (distance > (20 + g_settings->getU16("touchscreen_threshold")))
 		return false;
 
 	SEvent* translated = new SEvent();
-	memset(translated,0,sizeof(SEvent));
+	memset(translated, 0, sizeof(SEvent));
 	translated->EventType               = EET_MOUSE_INPUT_EVENT;
 	translated->MouseInput.X            = m_key_events[0].x;
 	translated->MouseInput.Y            = m_key_events[0].y;
@@ -685,7 +968,7 @@ bool TouchScreenGUI::doubleTapDetection()
 
 TouchScreenGUI::~TouchScreenGUI()
 {
-	for (unsigned int i=0; i < after_last_element_id; i++) {
+	for (unsigned int i = 0; i < after_last_element_id; i++) {
 		button_info* btn = &m_buttons[i];
 		if (btn->guibutton != 0) {
 			btn->guibutton->drop();
@@ -697,7 +980,7 @@ TouchScreenGUI::~TouchScreenGUI()
 void TouchScreenGUI::step(float dtime)
 {
 	/* simulate keyboard repeats */
-	for (unsigned int i=0; i < after_last_element_id; i++) {
+	for (unsigned int i = 0; i < after_last_element_id; i++) {
 		button_info* btn = &m_buttons[i];
 
 		if (btn->ids.size() > 0) {
@@ -711,7 +994,7 @@ void TouchScreenGUI::step(float dtime)
 
 			btn->repeatcounter              = 0;
 			SEvent translated;
-			memset(&translated,0,sizeof(SEvent));
+			memset(&translated, 0, sizeof(SEvent));
 			translated.EventType            = irr::EET_KEY_INPUT_EVENT;
 			translated.KeyInput.Key         = btn->keycode;
 			translated.KeyInput.PressedDown = false;
@@ -737,7 +1020,7 @@ void TouchScreenGUI::step(float dtime)
 							v2s32(m_move_downlocation.X,m_move_downlocation.Y));
 
 			SEvent translated;
-			memset(&translated,0,sizeof(SEvent));
+			memset(&translated, 0, sizeof(SEvent));
 			translated.EventType               = EET_MOUSE_INPUT_EVENT;
 			translated.MouseInput.X            = m_move_downlocation.X;
 			translated.MouseInput.Y            = m_move_downlocation.Y;
@@ -750,6 +1033,9 @@ void TouchScreenGUI::step(float dtime)
 			m_move_sent_as_mouse_event         = true;
 		}
 	}
+
+	m_settingsbar.step(dtime);
+	m_rarecontrolsbar.step(dtime);
 }
 
 void TouchScreenGUI::resetHud()
@@ -765,7 +1051,7 @@ void TouchScreenGUI::registerHudItem(int index, const rect<s32> &rect)
 void TouchScreenGUI::Toggle(bool visible)
 {
 	m_visible = visible;
-	for (unsigned int i=0; i < after_last_element_id; i++) {
+	for (unsigned int i = 0; i < after_last_element_id; i++) {
 		button_info* btn = &m_buttons[i];
 		if (btn->guibutton != 0) {
 			btn->guibutton->setVisible(visible);
@@ -777,10 +1063,16 @@ void TouchScreenGUI::Toggle(bool visible)
 		while (m_known_ids.size() > 0) {
 			handleReleaseEvent(m_known_ids.begin()->id);
 		}
+
+		m_settingsbar.hide();
+		m_rarecontrolsbar.hide();
+	} else {
+		m_settingsbar.show();
+		m_rarecontrolsbar.show();
 	}
 }
 
-void TouchScreenGUI::Hide()
+void TouchScreenGUI::hide()
 {
 	if (!m_visible)
 		return;
@@ -788,7 +1080,7 @@ void TouchScreenGUI::Hide()
 	Toggle(false);
 }
 
-void TouchScreenGUI::Show()
+void TouchScreenGUI::show()
 {
 	if (m_visible)
 		return;

src/touchscreengui.h

@@ -38,26 +38,105 @@ typedef enum {
 	backward_id,
 	left_id,
 	right_id,
-	inventory_id,
-	drop_id,
 	jump_id,
 	crunch_id,
+	after_last_element_id,
+	settings_starter_id,
+	rare_controls_starter_id,
 	fly_id,
 	noclip_id,
 	fast_id,
 	debug_id,
-	chat_id,
 	camera_id,
 	range_id,
-	after_last_element_id
+	chat_id,
+	inventory_id,
+	drop_id
 } touch_gui_button_id;
 
+typedef enum {
+	AHBB_Dir_Top_Bottom,
+	AHBB_Dir_Bottom_Top,
+	AHBB_Dir_Left_Right,
+	AHBB_Dir_Right_Left
+} autohide_button_bar_dir;
+
 #define MIN_DIG_TIME_MS 500
 #define MAX_TOUCH_COUNT 64
 #define BUTTON_REPEAT_DELAY 0.2f
 
+#define SETTINGS_BAR_Y_OFFSET 6.5
+#define RARE_CONTROLS_BAR_Y_OFFSET 4
+
 extern const char** touchgui_button_imagenames;
 
+struct button_info {
+	float            repeatcounter;
+	float            repeatdelay;
+	irr::EKEY_CODE   keycode;
+	std::vector<int> ids;
+	IGUIButton*      guibutton;
+	bool             immediate_release;
+};
+
+class AutoHideButtonBar
+{
+public:
+
+	AutoHideButtonBar( IrrlichtDevice *device, IEventReceiver* receiver );
+
+	void init(ISimpleTextureSource* tsrc, const char* starter_img,
+			int button_id, v2s32 UpperLeft, v2s32 LowerRight,
+			autohide_button_bar_dir dir, float timeout);
+
+	~AutoHideButtonBar();
+
+	/* add button to be shown */
+	void addButton(touch_gui_button_id id, const wchar_t* caption,
+			const char* btn_image);
+
+	/* detect settings bar button events */
+	bool isButton(const SEvent &event);
+
+	/* handle released hud buttons */
+	bool isReleaseButton(int eventID);
+
+	/* step handler */
+	void step(float dtime);
+
+	/* deactivate button bar */
+	void deactivate();
+
+	/* hide the whole buttonbar */
+	void hide();
+
+	/* unhide the buttonbar */
+	void show();
+
+private:
+	ISimpleTextureSource*     m_texturesource;
+	irr::video::IVideoDriver* m_driver;
+	IGUIEnvironment*          m_guienv;
+	IEventReceiver*           m_receiver;
+	v2u32                     m_screensize;
+	button_info               m_starter;
+	std::vector<button_info*> m_buttons;
+
+	v2s32                     m_upper_left;
+	v2s32                     m_lower_right;
+
+	/* show settings bar */
+	bool                      m_active;
+
+	bool                      m_visible;
+
+	/* settings bar timeout */
+	float                     m_timeout;
+	float                     m_timeout_value;
+	bool                      m_initialized;
+	autohide_button_bar_dir   m_dir;
+};
+
 class TouchScreenGUI
 {
 public:
@@ -66,7 +145,7 @@ public:
 
 	void translateEvent(const SEvent &event);
 
-	void init(ISimpleTextureSource* tsrc,float density);
+	void init(ISimpleTextureSource* tsrc);
 
 	double getYaw() { return m_camera_yaw; }
 	double getPitch() { return m_camera_pitch; }
@@ -77,8 +156,8 @@ public:
 	void registerHudItem(int index, const rect<s32> &rect);
 	void Toggle(bool visible);
 
-	void Hide();
-	void Show();
+	void hide();
+	void show();
 
 private:
 	IrrlichtDevice*         m_device;
@@ -104,15 +183,6 @@ private:
 	bool                    m_move_sent_as_mouse_event;
 	v2s32                   m_move_downlocation;
 
-	struct button_info {
-		float            repeatcounter;
-		float            repeatdelay;
-		irr::EKEY_CODE   keycode;
-		std::vector<int> ids;
-		IGUIButton*      guibutton;
-		bool             immediate_release;
-	};
-
 	button_info m_buttons[after_last_element_id];
 
 	/* gui button detection */
@@ -142,7 +212,7 @@ private:
 	std::vector<id_status> m_known_ids;
 
 	/* handle a button event */
-	void ButtonEvent(touch_gui_button_id bID, int eventID, bool action);
+	void handleButtonEvent(touch_gui_button_id bID, int eventID, bool action);
 
 	/* handle pressed hud buttons */
 	bool isHUDButton(const SEvent &event);
@@ -156,6 +226,9 @@ private:
 	/* handle release event */
 	void handleReleaseEvent(int evt_id);
 
+	/* get size of regular gui control button */
+	int getGuiButtonSize();
+
 	/* doubleclick detection variables */
 	struct key_event {
 		unsigned int down_time;
@@ -168,6 +241,12 @@ private:
 
 	/* array for doubletap detection */
 	key_event m_key_events[2];
+
+	/* settings bar */
+	AutoHideButtonBar m_settingsbar;
+
+	/* rare controls bar */
+	AutoHideButtonBar m_rarecontrolsbar;
 };
 extern TouchScreenGUI *g_touchscreengui;
 #endif