In Media preflet:

* Modify MediaListItem to use the visitor pattern
* Use the visitor pattern for comparison of MediaListItem subclassed objects
* Use the visitor pattern in MediaWindow to propagate changes to NodeListItems.
* Rename and/or remove some message constants
* Rename SettingsItem class to NodeMenuItem 
* Rename Settings2Item class to ChannelMenuItem
* Derive SettingsView from BGridView, and make it an abstract base class for two new classes, AudioSettingsView and VideoSettingsView.
* Have the SettingsView subclasses handle messages originating from their children (for the most part).
* Use a BCardLayout to hold our Audio/Video SettingsViews and our instantiated node view (when applicable).
* small changes


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40127 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/preferences/media/Media.cpp

@@ -57,8 +57,8 @@ Media::Media()
 		}
 	}
 
-	fWindow = new MediaWindow(rect);
 	MediaListItem::SetIcons(&fIcons);
+	fWindow = new MediaWindow(rect);
 
 	be_roster->StartWatching(BMessenger(this));
 }

src/preferences/media/MediaListItem.cpp

@@ -174,11 +174,10 @@ MediaListItem::Compare(const void* itemOne, const void* itemTwo)
 // #pragma mark - NodeListItem
 
 
-NodeListItem::NodeListItem(dormant_node_info* node, media_type type)
+NodeListItem::NodeListItem(const dormant_node_info* node, media_type type)
 	:
 	MediaListItem(),
 	fNodeInfo(node),
-	fIsAudioMixer(false),
 	fMediaType(type),
 	fIsDefaultInput(false),
 	fIsDefaultOutput(false)
@@ -189,19 +188,14 @@ NodeListItem::NodeListItem(dormant_node_info* node, media_type type)
 void
 NodeListItem::SetRenderParameters(MediaListItem::Renderer& renderer)
 {
+	MediaIcons::IconSet* iconSet = &Icons()->videoIcons;
+	if (fMediaType == MediaListItem::AUDIO_TYPE)
+		iconSet = &Icons()->audioIcons;
 
-	if (fIsAudioMixer) {
-		renderer.AddIcon(&Icons()->mixerIcon);
-	} else {
-		MediaIcons::IconSet* iconSet = &Icons()->videoIcons;
-		if (fMediaType == MediaListItem::AUDIO_TYPE)
-			iconSet = &Icons()->audioIcons;
-
-		if (fIsDefaultInput)
-			renderer.AddIcon(&iconSet->inputIcon);
-		if (fIsDefaultOutput)
-			renderer.AddIcon(&iconSet->outputIcon);
-	}
+	if (fIsDefaultInput)
+		renderer.AddIcon(&iconSet->inputIcon);
+	if (fIsDefaultOutput)
+		renderer.AddIcon(&iconSet->outputIcon);
 }
 
 
@@ -240,40 +234,55 @@ NodeListItem::AlterWindow(MediaWindow* window)
 }
 
 
+void
+NodeListItem::Accept(MediaListItem::Visitor& visitor)
+{
+	visitor.Visit(this);
+}
+
+
 int
 NodeListItem::CompareWith(MediaListItem* item)
 {
-	return item->CompareWith(this) * -1;
+	Comparator comparator(this);
+	item->Accept(comparator);
+	return comparator.result;
 }
 
 
-int
-NodeListItem::CompareWith(NodeListItem* item)
+NodeListItem::Comparator::Comparator(NodeListItem* compareOthersTo)
+	:
+	result(GREATER_THAN),
+	fTarget(compareOthersTo)
 {
-	if (fMediaType != item->fMediaType)
-		return fMediaType == AUDIO_TYPE ? GREATER_THAN : LESS_THAN;
-
-	if (fIsAudioMixer != item->fIsAudioMixer)
-		return fIsAudioMixer ? GREATER_THAN : LESS_THAN;
-
-	return strcmp(Label(), item->Label());
 }
 
 
-int
-NodeListItem::CompareWith(DeviceListItem* deviceItem)
+void
+NodeListItem::Comparator::Visit(NodeListItem* item)
 {
-	if (fMediaType != deviceItem->Type())
-		return fMediaType == AUDIO_TYPE ? GREATER_THAN : LESS_THAN;
+	result = GREATER_THAN;
+
+	if (fTarget->Type() != item->Type() && fTarget->Type() == VIDEO_TYPE)
+		result = LESS_THAN;
 	else
-		return LESS_THAN;
+		result = strcmp(fTarget->Label(), item->Label());
 }
 
 
-int
-NodeListItem::CompareWith(AudioMixerListItem* item)
+void
+NodeListItem::Comparator::Visit(DeviceListItem* item)
 {
-	return LESS_THAN;
+	result = LESS_THAN;
+	if (fTarget->Type() != item->Type() && fTarget->Type() == AUDIO_TYPE)
+		result = GREATER_THAN;
+}
+
+
+void
+NodeListItem::Comparator::Visit(AudioMixerListItem* item)
+{
+	result = LESS_THAN;
 }
 
 
@@ -290,35 +299,54 @@ DeviceListItem::DeviceListItem(const char* title,
 }
 
 
+void
+DeviceListItem::Accept(MediaListItem::Visitor& visitor)
+{
+	visitor.Visit(this);
+}
+
+
 int
 DeviceListItem::CompareWith(MediaListItem* item)
 {
-	return item->CompareWith(this) * -1;
+	Comparator comparator(this);
+	item->Accept(comparator);
+	return comparator.result;
 }
 
 
-int
-DeviceListItem::CompareWith(NodeListItem* item)
+DeviceListItem::Comparator::Comparator(DeviceListItem* compareOthersTo)
+	:
+	result(GREATER_THAN),
+	fTarget(compareOthersTo)
 {
-	// let NodeListItem do the work
-	return item->CompareWith(this) * -1;
 }
 
 
-int
-DeviceListItem::CompareWith(DeviceListItem* item)
+void
+DeviceListItem::Comparator::Visit(NodeListItem* item)
 {
-	if (fMediaType == MediaListItem::AUDIO_TYPE)
-		return GREATER_THAN;
-	return LESS_THAN;
+	result = GREATER_THAN;
+	if (fTarget->Type() != item->Type() && fTarget->Type() == AUDIO_TYPE)
+		result = LESS_THAN;
 }
 
 
-int
-DeviceListItem::CompareWith(AudioMixerListItem* item)
+void
+DeviceListItem::Comparator::Visit(DeviceListItem* item)
 {
-	// let AudioMixerListItem do the work too!
-	return item->CompareWith(this) * -1;
+	result = LESS_THAN;
+	if (fTarget->Type() == AUDIO_TYPE)
+		result = GREATER_THAN;
+}
+
+
+void
+DeviceListItem::Comparator::Visit(AudioMixerListItem* item)
+{
+	result = LESS_THAN;
+	if (fTarget->Type() == AUDIO_TYPE)
+		result = GREATER_THAN;
 }
 
 
@@ -358,33 +386,50 @@ AudioMixerListItem::AlterWindow(MediaWindow* window)
 }
 
 
+void
+AudioMixerListItem::Accept(MediaListItem::Visitor& visitor)
+{
+	visitor.Visit(this);
+}
+
+
 int
 AudioMixerListItem::CompareWith(MediaListItem* item)
 {
-	return item->CompareWith(this) * -1;
+	Comparator comparator(this);
+	item->Accept(comparator);
+	return comparator.result;
 }
 
 
-int
-AudioMixerListItem::CompareWith(NodeListItem* item)
+AudioMixerListItem::Comparator::Comparator(AudioMixerListItem* compareOthersTo)
+	:
+	result(0),
+	fTarget(compareOthersTo)
 {
-	return GREATER_THAN;
 }
 
 
-int
-AudioMixerListItem::CompareWith(DeviceListItem* item)
+void
+AudioMixerListItem::Comparator::Visit(NodeListItem* item)
 {
+	result = GREATER_THAN;
+}
+
+
+void
+AudioMixerListItem::Comparator::Visit(DeviceListItem* item)
+{
+	result = GREATER_THAN;
 	if (item->Type() == AUDIO_TYPE)
-		return LESS_THAN;
-	return GREATER_THAN;
+		result = LESS_THAN;
 }
 
 
-int
-AudioMixerListItem::CompareWith(AudioMixerListItem* item)
+void
+AudioMixerListItem::Comparator::Visit(AudioMixerListItem* item)
 {
-	return 0;
+	result = 0;
 }
 
 

src/preferences/media/MediaListItem.h

@@ -44,9 +44,6 @@ public:
 	virtual	void				Update(BView* owner, const BFont* font);
 	virtual	void				DrawItem(BView* owner, BRect frame,
 									bool complete = false);
-
-	// TODO: refactor and remove this:
-	virtual	dormant_node_info*	NodeInfo() = 0;
 	
 	virtual	const char*			Label() = 0;
 
@@ -54,16 +51,20 @@ public:
 	static	MediaIcons*			Icons() {return sIcons;}
 	static	void				SetIcons(MediaIcons* icons) {sIcons = icons;}
 
-	static	int					Compare(const void* itemOne,
-									const void* itemTwo);
+	struct Visitor {
+		virtual	void			Visit(AudioMixerListItem* item) = 0;
+		virtual	void			Visit(DeviceListItem* item) = 0;
+		virtual	void			Visit(NodeListItem* item) = 0;
+	};
 
-	// use double dispatch for comparison,
-	// returning item->CompareWith(this) * -1
+	virtual	void				Accept(Visitor& visitor) = 0;
+
+	// use the visitor pattern for comparison,
 	// -1 : < item; 0 : == item; 1 : > item
 	virtual	int					CompareWith(MediaListItem* item) = 0;
-	virtual	int					CompareWith(NodeListItem* item) = 0;
-	virtual	int					CompareWith(DeviceListItem* item) = 0;
-	virtual	int					CompareWith(AudioMixerListItem* item) = 0;
+
+	static	int					Compare(const void* itemOne,
+									const void* itemTwo);
 
 protected:
 			struct Renderer;
@@ -78,7 +79,7 @@ private:
 
 class NodeListItem : public MediaListItem {
 public:
-								NodeListItem(dormant_node_info* node,
+								NodeListItem(const dormant_node_info* node,
 									media_type type);
 
 			void				SetMediaType(MediaListItem::media_type type);
@@ -89,25 +90,32 @@ public:
 
 	virtual	void				AlterWindow(MediaWindow* window);
 
-	// TODO: refactor and remove this:
-	virtual	dormant_node_info*	NodeInfo(){return fNodeInfo;}
-
 	virtual	const char*			Label();
 			media_type			Type() {return fMediaType;}
 
-	virtual	int					CompareWith(MediaListItem* item);
+	virtual	void				Accept(MediaListItem::Visitor& visitor);
+
+	struct Comparator : public MediaListItem::Visitor {
+								Comparator(NodeListItem* compareOthersTo);
+		virtual	void			Visit(NodeListItem* item);
+		virtual	void			Visit(DeviceListItem* item);
+		virtual	void			Visit(AudioMixerListItem* item);
+
+				int				result;
+					// -1 : < item; 0 : == item; 1 : > item
+	private:
+				NodeListItem*	fTarget;
+	};
 
 	// -1 : < item; 0 : == item; 1 : > item
-	virtual	int					CompareWith(NodeListItem* item);
-	virtual	int					CompareWith(DeviceListItem* item);
-	virtual	int					CompareWith(AudioMixerListItem* item);
+	virtual	int					CompareWith(MediaListItem* item);
 
 private:
 
 	virtual void				SetRenderParameters(Renderer& renderer);
 
-			dormant_node_info*	fNodeInfo;
-			bool				fIsAudioMixer;
+			const dormant_node_info* fNodeInfo;
+
 			media_type			fMediaType;
 			bool				fIsDefaultInput;
 			bool				fIsDefaultOutput;
@@ -120,19 +128,24 @@ public:
 									MediaListItem::media_type type);
 
 			MediaListItem::media_type Type() {return fMediaType;}
-
-	// TODO: refactor and remove this:
-	virtual	dormant_node_info*	NodeInfo(){return NULL;}
 	virtual	const char*			Label() {return fTitle;}
-
 	virtual	void				AlterWindow(MediaWindow* window);
+	virtual	void				Accept(MediaListItem::Visitor& visitor);
 
-	virtual	int					CompareWith(MediaListItem* item);
+	struct Comparator : public MediaListItem::Visitor {
+								Comparator(DeviceListItem* compareOthersTo);
+		virtual	void			Visit(NodeListItem* item);
+		virtual	void			Visit(DeviceListItem* item);
+		virtual	void			Visit(AudioMixerListItem* item);
+
+				int				result;
+					// -1 : < item; 0 : == item; 1 : > item
+	private:
+				DeviceListItem*	fTarget;
+	};
 
 	// -1 : < item; 0 : == item; 1 : > item
-	virtual	int					CompareWith(NodeListItem* item);
-	virtual	int					CompareWith(DeviceListItem* item);
-	virtual	int					CompareWith(AudioMixerListItem* item);
+	virtual	int					CompareWith(MediaListItem* item);
 
 private:
 	virtual void				SetRenderParameters(Renderer& renderer);
@@ -146,19 +159,25 @@ class AudioMixerListItem : public MediaListItem {
 public:
 								AudioMixerListItem(const char* title);
 
-	// TODO: refactor and remove this:
-	virtual	dormant_node_info*	NodeInfo(){return NULL;}
 
 	virtual	const char*			Label() {return fTitle;}
-
 	virtual	void				AlterWindow(MediaWindow* window);
+	virtual	void				Accept(MediaListItem::Visitor& visitor);
 
-	virtual	int					CompareWith(MediaListItem* item);
+	struct Comparator : public MediaListItem::Visitor {
+								Comparator(AudioMixerListItem* compareOthersTo);
+		virtual	void			Visit(NodeListItem* item);
+		virtual	void			Visit(DeviceListItem* item);
+		virtual	void			Visit(AudioMixerListItem* item);
+
+				int				result;
+					// -1 : < item; 0 : == item; 1 : > item
+	private:
+				AudioMixerListItem* fTarget;
+	};
 
 	// -1 : < item; 0 : == item; 1 : > item
-	virtual	int					CompareWith(NodeListItem* item);
-	virtual	int					CompareWith(DeviceListItem* item);
-	virtual	int					CompareWith(AudioMixerListItem* item);
+	virtual	int					CompareWith(MediaListItem* item);
 
 private:
 	virtual void				SetRenderParameters(Renderer& renderer);

src/preferences/media/MediaViews.cpp

@@ -12,248 +12,287 @@
 //  Created :    June 25, 2003
 //
 // ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
-
-
 #include "MediaViews.h"
 
+#include <AutoDeleter.h>
 #include <Box.h>
 #include <Button.h>
 #include <Catalog.h>
+#include <CheckBox.h>
 #include <Deskbar.h>
 #include <Entry.h>
-#include <GridView.h>
-#include <GroupView.h>
+#include <LayoutBuilder.h>
 #include <Locale.h>
 #include <MediaAddOn.h>
 #include <MediaRoster.h>
 #include <MenuField.h>
 #include <PopUpMenu.h>
-#include <SpaceLayoutItem.h>
 #include <String.h>
+#include <StringView.h>
 #include <TextView.h>
 
+#include <assert.h>
 #include <stdio.h>
 
+#include "MediaWindow.h"
+
 
 #undef B_TRANSLATE_CONTEXT
 #define B_TRANSLATE_CONTEXT "Media views"
 
+#define MEDIA_DEFAULT_INPUT_CHANGE 'dich'
+#define MEDIA_DEFAULT_OUTPUT_CHANGE 'doch'
+#define MEDIA_SHOW_HIDE_VOLUME_CONTROL 'shvc'
 
-SettingsView::SettingsView (bool isVideo)
+
+SettingsView::SettingsView()
 	:
-	BView("SettingsView", B_WILL_DRAW | B_SUPPORTS_LAYOUT),
-	fIsVideo(isVideo)
+	BGridView(B_USE_DEFAULT_SPACING, B_USE_DEFAULT_SPACING),
+	fRealtimeCheckBox(NULL),
+	fInputMenu(NULL),
+	fOutputMenu(NULL),
+	fRestartView(NULL)
 {
-	SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
-
-	// create the default box
-
 	// input menu
 	fInputMenu = new BPopUpMenu(B_TRANSLATE("<none>"));
 	fInputMenu->SetLabelFromMarked(true);
-	BMenuField* inputMenuField = new BMenuField("inputMenuField",
-		fIsVideo ? B_TRANSLATE("Video input:")
-			: B_TRANSLATE("Audio input:"), fInputMenu, NULL);
 
-	// output menu
+	// input menu
 	fOutputMenu = new BPopUpMenu(B_TRANSLATE("<none>"));
 	fOutputMenu->SetLabelFromMarked(true);
-	BMenuField* outputMenuField = new BMenuField("outputMenuField",
-		fIsVideo ? B_TRANSLATE("Video output:")
-			: B_TRANSLATE("Audio output:"), fOutputMenu, NULL);
-
-	// channel menu (audio only)
-	BMenuField* channelMenuField = NULL;
-	if (!fIsVideo) {
-		fChannelMenu = new BPopUpMenu(B_TRANSLATE("<none>"));
-		fChannelMenu->SetLabelFromMarked(true);
-		channelMenuField = new BMenuField("channelMenuField",
-			B_TRANSLATE("Channel:"), fChannelMenu, NULL);
-		channelMenuField->SetDivider(StringWidth(B_TRANSLATE("Channel:"))+5);
-	}
-
-	BBox* defaultsBox = new BBox("defaults");
-	defaultsBox->SetLabel(fIsVideo ? B_TRANSLATE("Default nodes")
-		: B_TRANSLATE("Defaults"));
-
-	// put our menus in a BGridView in our BBox, this way, the BBox makes sure
-	// we have are not blocking the label.
-	BGridView* defaultsGridView = new BGridView();
-	defaultsBox->AddChild(defaultsGridView);
-
-	BGridLayout* defaultsGrid = defaultsGridView->GridLayout();
-	defaultsGrid->SetInsets(B_USE_DEFAULT_SPACING, 0, B_USE_DEFAULT_SPACING,
-		B_USE_DEFAULT_SPACING);
-
-	BLayoutItem* labelItem = inputMenuField->CreateLabelLayoutItem();
-	BLayoutItem* menuItem = inputMenuField->CreateMenuBarLayoutItem();
-	defaultsGrid->AddItem(labelItem, 0, 0, 1, 1);
-	defaultsGrid->AddItem(menuItem, 1, 0, 3, 1);
-
-	int32 outputMenuWidth = 3;
-	if (channelMenuField) {
-		outputMenuWidth = 1;
-		labelItem = channelMenuField->CreateLabelLayoutItem();
-		menuItem = channelMenuField->CreateMenuBarLayoutItem();
-		defaultsGrid->AddItem(labelItem, 2, 1, 1, 1);
-		defaultsGrid->AddItem(menuItem, 3, 1, 1, 1);
-	}
-
-	labelItem = outputMenuField->CreateLabelLayoutItem();
-	menuItem = outputMenuField->CreateMenuBarLayoutItem();
-	defaultsGrid->AddItem(labelItem, 0, 1, 1, 1);
-	defaultsGrid->AddItem(menuItem, 1, 1, outputMenuWidth, 1);
+}
 
 
-	rgb_color red_color = {222, 32, 33};
-	fRestartView = new BStringView("restartStringView",
-		B_TRANSLATE("Restart the media server to apply changes."));
-	fRestartView->SetHighColor(red_color);
-	defaultsBox->AddChild(fRestartView);
-	fRestartView->Hide();
-
+BBox*
+SettingsView::MakeRealtimeBox(const char* info, uint32 realtimeMask,
+	const char* checkBoxLabel)
+{
 	// create the realtime box
 	BBox* realtimeBox = new BBox("realtime");
 	realtimeBox->SetLabel(B_TRANSLATE("Real-time"));
 
-	BMessage* message = new BMessage(ML_ENABLE_REAL_TIME);
-	message->AddBool("isVideo", fIsVideo);
-	fRealtimeCheckBox = new BCheckBox("realtimeCheckBox",
-		fIsVideo ? B_TRANSLATE("Enable real-time video")
-			: B_TRANSLATE("Enable real-time audio"),
-		message);
+	BMessage* checkBoxMessage = new BMessage(ML_ENABLE_REAL_TIME);
+	checkBoxMessage->AddUInt32("flags", realtimeMask);
+	fRealtimeCheckBox = new BCheckBox("realtimeCheckBox", checkBoxLabel,
+		checkBoxMessage);
 
-	uint32 flags;
+	uint32 flags = 0;
 	BMediaRoster::Roster()->GetRealtimeFlags(&flags);
-	if (flags & (fIsVideo ? B_MEDIA_REALTIME_VIDEO : B_MEDIA_REALTIME_AUDIO))
+	if (flags & realtimeMask)
 		fRealtimeCheckBox->SetValue(B_CONTROL_ON);
 
 	BTextView* textView = new BTextView("stringView");
-	textView->Insert(fIsVideo ? B_TRANSLATE(
-		"Enabling real-time video allows system to "
-		"perform video operations as fast and smoothly as possible.  It "
-		"achieves optimum performance by using more RAM."
-		"\n\nOnly enable this feature if you need the lowest latency possible.")
-		: B_TRANSLATE(
-		"Enabling real-time audio allows system to record and play audio "
-		"as fast as possible.  It achieves this performance by using more"
-		" CPU and RAM.\n\nOnly enable this feature if you need the lowest"
-		" latency possible."));
-
+	textView->Insert(info);
 	textView->MakeEditable(false);
 	textView->MakeSelectable(false);
 	textView->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
 
-	BGroupLayout* realtimeBoxLayout = new BGroupLayout(B_VERTICAL, 5);
-	realtimeBoxLayout->SetInsets(10,10,10,10);
-	realtimeBox->SetLayout(realtimeBoxLayout);
+	BGroupView* realtimeGroup = new BGroupView(B_VERTICAL);
+	BLayoutBuilder::Group<>(realtimeGroup)
+		.SetInsets(B_USE_DEFAULT_SPACING, 0, B_USE_DEFAULT_SPACING,
+			B_USE_DEFAULT_SPACING)
+		.Add(fRealtimeCheckBox)
+		.Add(textView);
 
-	realtimeBoxLayout->AddItem(BSpaceLayoutItem::CreateVerticalStrut(5));
-	realtimeBoxLayout->AddView(fRealtimeCheckBox);
-	realtimeBoxLayout->AddView(textView);
+	realtimeBox->AddChild(realtimeGroup);
+	return realtimeBox;
+}
 
-	// create the bottom line: volume in deskbar checkbox and restart button
-	BGroupView* bottomView = new BGroupView(B_HORIZONTAL);
-	BButton* restartButton = new BButton("restartButton",
+
+BStringView*
+SettingsView::MakeRestartMessageView()
+{
+	// note: this ought to display at the bottom of the default box...
+	fRestartView = new BStringView("restartStringView",
+		B_TRANSLATE("Restart the media server to apply changes."));
+	fRestartView->SetHighColor(ui_color(B_FAILURE_COLOR));
+		// not exactly failure, but sort of.
+	fRestartView->Hide();
+	fRestartView->SetExplicitAlignment(BAlignment(B_ALIGN_HORIZONTAL_CENTER,
+		B_ALIGN_VERTICAL_CENTER));
+	fRestartView->SetAlignment(B_ALIGN_HORIZONTAL_CENTER);
+	fRestartView->SetExplicitMaxSize(BSize(B_SIZE_UNLIMITED, B_SIZE_UNSET));
+	return fRestartView;
+}
+
+
+BButton*
+SettingsView::MakeRestartButton()
+{
+	return new BButton("restartButton",
 		B_TRANSLATE("Restart media services"),
 		new BMessage(ML_RESTART_MEDIA_SERVER));
+}
 
-	if (!fIsVideo) {
-		fVolumeCheckBox = new BCheckBox("volumeCheckBox",
-			B_TRANSLATE("Show volume control on Deskbar"),
-			new BMessage(ML_SHOW_VOLUME_CONTROL));
-		bottomView->GroupLayout()->AddView(fVolumeCheckBox);
-		if (BDeskbar().HasItem("MediaReplicant"))
-			fVolumeCheckBox->SetValue(B_CONTROL_ON);
-	}
-	else{
-		bottomView->GroupLayout()->AddItem(BSpaceLayoutItem::CreateGlue());
-	}
-	bottomView->GroupLayout()->AddView(restartButton);
 
-	// compose all stuff
-	BGroupLayout* rootlayout = new BGroupLayout(B_VERTICAL, 5);
-	SetLayout(rootlayout);
 
-	rootlayout->AddView(defaultsBox);
-	rootlayout->AddView(realtimeBox);
-	rootlayout->AddView(bottomView);
+void
+SettingsView::AddInputNodes(NodeList& list)
+{
+	_EmptyMenu(fInputMenu);
+
+	BMessage message(MEDIA_DEFAULT_INPUT_CHANGE);
+	_PopulateMenu(fInputMenu, list, message);
 }
 
 
 void
-SettingsView::AddNodes(NodeList& list, bool isInput)
+SettingsView::AddOutputNodes(NodeList& list)
 {
-	BMenu* menu = isInput ? fInputMenu : fOutputMenu;
+	_EmptyMenu(fOutputMenu);
 
-	for (BMenuItem* item; (item = menu->RemoveItem((int32)0)) != NULL;)
-		delete item;
-
-	BMessage message(ML_DEFAULT_CHANGE);
-	message.AddBool("isVideo", fIsVideo);
-	message.AddBool("isInput", isInput);
-
-	for (int32 i = 0; i < list.CountItems(); i++) {
-		dormant_node_info* info = list.ItemAt(i);
-		menu->AddItem(new SettingsItem(info, new BMessage(message)));
-	}
+	BMessage message(MEDIA_DEFAULT_OUTPUT_CHANGE);
+	_PopulateMenu(fOutputMenu, list, message);
 }
 
 
 void
-SettingsView::SetDefault(dormant_node_info &info, bool isInput, int32 outputID)
+SettingsView::SetDefaultInput(const dormant_node_info* info)
 {
-	BMenu* menu = isInput ? fInputMenu : fOutputMenu;
+	_ClearMenuSelection(fInputMenu);
+	NodeMenuItem* item = _FindNodeItem(fInputMenu, info);
+	if (item)
+		item->SetMarked(true);
+}
 
-	for (int32 i = 0; i < menu->CountItems(); i++) {
-		SettingsItem* item = static_cast<SettingsItem*>(menu->ItemAt(i));
-		if (item->fInfo && item->fInfo->addon == info.addon
-			&& item->fInfo->flavor_id == info.flavor_id) {
-			item->SetMarked(true);
+
+void
+SettingsView::SetDefaultOutput(const dormant_node_info* info)
+{
+	_ClearMenuSelection(fOutputMenu);
+	NodeMenuItem* item = _FindNodeItem(fOutputMenu, info);
+	if (item)
+		item->SetMarked(true);
+}
+
+
+void
+SettingsView::MessageReceived(BMessage* message)
+{
+	switch (message->what) {
+		case MEDIA_DEFAULT_INPUT_CHANGE:
+		{
+			int32 index;
+			if (message->FindInt32("index", &index)!=B_OK)
+				break;
+			NodeMenuItem* item
+				= static_cast<NodeMenuItem*>(fInputMenu->ItemAt(index));
+			SetDefaultInput(item->NodeInfo());
+			RestartRequired(true);
+		}
+		case MEDIA_DEFAULT_OUTPUT_CHANGE:
+		{
+			int32 index;
+			if (message->FindInt32("index", &index)!=B_OK)
+				break;
+			NodeMenuItem* item
+				= static_cast<NodeMenuItem*>(fOutputMenu->ItemAt(index));
+			SetDefaultOutput(item->NodeInfo());
+			RestartRequired(true);
+		}
+		case ML_ENABLE_REAL_TIME:
+		{
+			uint32 flags = 0;
+			if (message->FindUInt32("flags", &flags) == B_OK)
+				_FlipRealtimeFlag(flags);
 			break;
 		}
 	}
+	BGridView::MessageReceived(message);
+}
 
-	if (!fIsVideo && !isInput && outputID >= 0) {
-		BMenuItem* item;
-		while ((item = fChannelMenu->RemoveItem((int32)0)) != NULL)
-			delete item;
 
-		BMediaRoster* roster = BMediaRoster::Roster();
-		media_node node;
-		media_node_id node_id;
-		status_t err;
-		if (roster->GetInstancesFor(info.addon, info.flavor_id,
-			&node_id) != B_OK) {
-			err = roster->InstantiateDormantNode(info, &node, 
-				B_FLAVOR_IS_GLOBAL);
-		} else {
-			err = roster->GetNodeFor(node_id, &node);
+void
+SettingsView::AttachedToWindow()
+{
+	BMessenger thisMessenger(this);
+	fInputMenu->SetTargetForItems(thisMessenger);
+	fOutputMenu->SetTargetForItems(thisMessenger);
+	fRealtimeCheckBox->SetTarget(thisMessenger);
+}
+
+
+void
+SettingsView::RestartRequired(bool required)
+{
+	if (required)
+		fRestartView->Show();
+	else
+		fRestartView->Hide();
+}
+
+
+MediaWindow*
+SettingsView::_MediaWindow() const
+{
+	return static_cast<MediaWindow*>(Window());
+}
+
+
+void
+SettingsView::_FlipRealtimeFlag(uint32 mask)
+{
+	// TODO: error codes
+	uint32 flags = 0;
+	BMediaRoster* roster = BMediaRoster::Roster();
+	roster->GetRealtimeFlags(&flags);
+	if (flags & mask)
+		flags &= ~mask;
+	else
+		flags |= mask;
+	roster->SetRealtimeFlags(flags);
+}
+
+
+void
+SettingsView::_EmptyMenu(BMenu* menu)
+{
+	while (menu->CountItems() > 0)
+		delete menu->RemoveItem((int32)0);
+}
+
+
+void
+SettingsView::_PopulateMenu(BMenu* menu, NodeList& nodes,
+	const BMessage& message)
+{
+	for (int32 i = 0; i < nodes.CountItems(); i++) {
+		dormant_node_info* info = nodes.ItemAt(i);
+		menu->AddItem(new NodeMenuItem(info, new BMessage(message)));
+	}
+
+	if (Window() != NULL)
+		menu->SetTargetForItems(BMessenger(this));
+}
+
+
+NodeMenuItem*
+SettingsView::_FindNodeItem(BMenu* menu, const dormant_node_info* nodeInfo)
+{
+	for (int32 i = 0; i < menu->CountItems(); i++) {
+		NodeMenuItem* item = static_cast<NodeMenuItem*>(menu->ItemAt(i));
+		const dormant_node_info* itemInfo = item->NodeInfo();
+		if (itemInfo && itemInfo->addon == nodeInfo->addon
+			&& itemInfo->flavor_id == nodeInfo->flavor_id) {
+			return item;
 		}
+	}
+	return NULL;
+}
 
-		if (err == B_OK) {
-			media_input inputs[16];
-			int32 inputCount = 16;
-			if (roster->GetAllInputsFor(node, inputs, 16, &inputCount)==B_OK) {
-				BMessage message(ML_DEFAULTOUTPUT_CHANGE);
 
-				for (int32 i = 0; i < inputCount; i++) {
-					media_input* input = new media_input();
-					memcpy(input, &inputs[i], sizeof(*input));
-					item = new Settings2Item(&info, input,
-						new BMessage(message));
-					fChannelMenu->AddItem(item);
-					if (inputs[i].destination.id == outputID)
-						item->SetMarked(true);
-				}
-			}
-		}
+void
+SettingsView::_ClearMenuSelection(BMenu* menu)
+{
+	for (int32 i = 0; i < menu->CountItems(); i++) {
+		BMenuItem* item = menu->ItemAt(i);
+		item->SetMarked(false);
 	}
 }
 
 
-SettingsItem::SettingsItem(dormant_node_info* info, BMessage* message,
-		char shortcut, uint32 modifiers)
+NodeMenuItem::NodeMenuItem(const dormant_node_info* info, BMessage* message,
+	char shortcut, uint32 modifiers)
 	:
 	BMenuItem(info->name, message, shortcut, modifiers),
 	fInfo(info)
@@ -263,7 +302,7 @@ SettingsItem::SettingsItem(dormant_node_info* info, BMessage* message,
 
 
 status_t
-SettingsItem::Invoke(BMessage* message)
+NodeMenuItem::Invoke(BMessage* message)
 {
 	if (IsMarked())
 		return B_OK;
@@ -271,27 +310,330 @@ SettingsItem::Invoke(BMessage* message)
 }
 
 
-Settings2Item::Settings2Item(dormant_node_info* info, media_input* input,
-		BMessage* message, char shortcut, uint32 modifiers)
+ChannelMenuItem::ChannelMenuItem(media_input* input, BMessage* message,
+	char shortcut, uint32 modifiers)
 	:
 	BMenuItem(input->name, message, shortcut, modifiers),
-	fInfo(info),
 	fInput(input)
 {
 }
 
 
-Settings2Item::~Settings2Item()
+ChannelMenuItem::~ChannelMenuItem()
 {
 	delete fInput;
 }
 
 
+int32
+ChannelMenuItem::DestinationID()
+{
+	return fInput->destination.id;
+}
+
+
+media_input*
+ChannelMenuItem::Input()
+{
+	return fInput;
+}
+
+
 status_t
-Settings2Item::Invoke(BMessage* message)
+ChannelMenuItem::Invoke(BMessage* message)
 {
 	if (IsMarked())
 		return B_OK;
 	return BMenuItem::Invoke(message);
 }
 
+
+AudioSettingsView::AudioSettingsView()
+{
+	BBox* defaultsBox = new BBox("defaults");
+	defaultsBox->SetLabel(B_TRANSLATE("Defaults"));
+	BGridView* defaultsGridView = new BGridView();
+	
+	BMenuField* inputMenuField = new BMenuField("inputMenuField",
+		B_TRANSLATE("Audio input:"), InputMenu(), NULL);
+
+	BMenuField* outputMenuField = new BMenuField("outputMenuField",
+		B_TRANSLATE("Audio output:"), OutputMenu(), NULL);
+
+	BLayoutBuilder::Grid<>(defaultsGridView)
+		.SetInsets(B_USE_DEFAULT_SPACING, 0, B_USE_DEFAULT_SPACING, 0)
+		.AddMenuField(inputMenuField, 0, 0, B_ALIGN_HORIZONTAL_UNSET, 1, 3, 1)
+		.AddMenuField(outputMenuField, 0, 1)
+		.AddMenuField(_MakeChannelMenu(), 2, 1)
+		.Add(MakeRestartMessageView(), 0, 2, 4, 1);
+
+	defaultsBox->AddChild(defaultsGridView);
+
+	const char* realtimeLabel = B_TRANSLATE("Enable real-time audio");
+	const char* realtimeInfo = B_TRANSLATE(
+		"Enabling real-time audio allows system to record and play audio "
+		"as fast as possible.  It achieves this performance by using more"
+		" CPU and RAM.\n\nOnly enable this feature if you need the lowest"
+		" latency possible.");
+
+
+	BLayoutBuilder::Grid<>(this)
+		.SetInsets(0, 0, 0, 0)
+		.Add(defaultsBox, 0, 0, 2, 1)
+		.Add(MakeRealtimeBox(realtimeInfo, B_MEDIA_REALTIME_AUDIO,
+			realtimeLabel), 0, 1, 2, 1)
+		.Add(_MakeVolumeCheckBox(),0, 2, 1, 1)
+		.Add(MakeRestartButton(), 1, 2, 1, 1)
+		.SetRowWeight(1, 10);
+}
+
+
+void
+AudioSettingsView::SetDefaultChannel(int32 channelID)
+{
+	for (int32 i = 0; i < fChannelMenu->CountItems(); i++) {
+		ChannelMenuItem* item = _ChannelMenuItemAt(i);
+		item->SetMarked(item->DestinationID() == channelID);
+	}
+}
+
+
+void
+AudioSettingsView::AttachedToWindow()
+{
+	SettingsView::AttachedToWindow();
+
+	BMessenger thisMessenger(this);
+	fChannelMenu->SetTargetForItems(thisMessenger);
+	fVolumeCheckBox->SetTarget(thisMessenger);
+}
+
+
+void
+AudioSettingsView::MessageReceived(BMessage* message)
+{
+	switch (message->what) {
+		case ML_DEFAULT_CHANNEL_CHANGED:
+			{
+				int32 index;
+				if (message->FindInt32("index", &index) != B_OK)
+					break;
+				ChannelMenuItem* item = _ChannelMenuItemAt(index);
+
+				if (item) {
+					BMediaRoster* roster = BMediaRoster::Roster();
+					roster->SetAudioOutput(*item->Input());
+					RestartRequired(true);
+				} else
+					fprintf(stderr, "ChannelMenuItem not found\n");
+			}
+			break;
+		case MEDIA_SHOW_HIDE_VOLUME_CONTROL:
+		{
+			if (fVolumeCheckBox->Value() == B_CONTROL_ON)
+				_ShowDeskbarVolumeControl();
+			else
+				_HideDeskbarVolumeControl();
+			break;
+		}
+
+		default:
+			SettingsView::MessageReceived(message);
+	}
+}
+
+
+void
+AudioSettingsView::SetDefaultInput(const dormant_node_info* info)
+{
+	SettingsView::SetDefaultInput(info);
+	_MediaWindow()->UpdateInputListItem(MediaListItem::AUDIO_TYPE, info);
+	BMediaRoster::Roster()->SetAudioInput(*info);
+}
+
+
+void
+AudioSettingsView::SetDefaultOutput(const dormant_node_info* info)
+{
+	SettingsView::SetDefaultOutput(info);
+	_MediaWindow()->UpdateOutputListItem(MediaListItem::AUDIO_TYPE, info);
+	_FillChannelMenu(info);
+	BMediaRoster::Roster()->SetAudioOutput(*info);
+}
+
+
+BMenuField*
+AudioSettingsView::_MakeChannelMenu()
+{
+	fChannelMenu = new BPopUpMenu(B_TRANSLATE("<none>"));
+	fChannelMenu->SetLabelFromMarked(true);
+	BMenuField* channelMenuField = new BMenuField("channelMenuField",
+		B_TRANSLATE("Channel:"), fChannelMenu, NULL);
+	return channelMenuField;
+}
+
+
+BCheckBox*
+AudioSettingsView::_MakeVolumeCheckBox()
+{
+	fVolumeCheckBox = new BCheckBox("volumeCheckBox",
+		B_TRANSLATE("Show volume control on Deskbar"),
+		new BMessage(MEDIA_SHOW_HIDE_VOLUME_CONTROL));
+
+	if (BDeskbar().HasItem("MediaReplicant"))
+		fVolumeCheckBox->SetValue(B_CONTROL_ON);
+
+	return fVolumeCheckBox;
+}
+
+
+void
+AudioSettingsView::_FillChannelMenu(const dormant_node_info* nodeInfo)
+{
+	_EmptyMenu(fChannelMenu);
+
+	BMediaRoster* roster = BMediaRoster::Roster();
+	media_node node;
+	media_node_id node_id;
+
+	status_t err = roster->GetInstancesFor(nodeInfo->addon,
+		nodeInfo->flavor_id, &node_id);
+	if (err != B_OK) {
+		err = roster->InstantiateDormantNode(*nodeInfo, &node,
+			B_FLAVOR_IS_GLOBAL);
+	} else {
+		err = roster->GetNodeFor(node_id, &node);
+	}
+
+	if (err == B_OK) {
+		int32 inputCount = 4;
+		media_input* inputs = new media_input[inputCount];
+		BPrivate::ArrayDeleter<media_input> inputDeleter(inputs);
+
+		while (true) {
+			int32 realInputCount = 0;
+			err = roster->GetAllInputsFor(node, inputs,
+				inputCount, &realInputCount);
+			if (realInputCount > inputCount) {
+				inputCount *= 2;
+				inputs = new media_input[inputCount];
+				inputDeleter.SetTo(inputs);
+			} else {
+				inputCount = realInputCount;
+				break;
+			}
+		}
+
+		if (err == B_OK) {
+			BMessage message(ML_DEFAULT_CHANNEL_CHANGED);
+
+			for (int32 i = 0; i < inputCount; i++) {
+				media_input* input = new media_input();
+				memcpy(input, &inputs[i], sizeof(*input));
+				ChannelMenuItem* channelItem = new ChannelMenuItem(input,
+					new BMessage(message));
+				fChannelMenu->AddItem(channelItem);
+
+				if (channelItem->DestinationID() == 0)
+					channelItem->SetMarked(true);
+			}
+		}
+	}
+
+	if (Window())
+		fChannelMenu->SetTargetForItems(BMessenger(this));
+}
+
+
+void
+AudioSettingsView::_ShowDeskbarVolumeControl()
+{
+	BDeskbar deskbar;
+	BEntry entry("/bin/desklink", true);
+	int32 id;
+	entry_ref ref;
+	status_t status = entry.GetRef(&ref);
+	if (status == B_OK)
+		status = deskbar.AddItem(&ref, &id);
+
+	if (status != B_OK) {
+		fprintf(stderr, B_TRANSLATE(
+			"Couldn't add volume control in Deskbar: %s\n"),
+			strerror(status));
+	}
+}
+
+
+void
+AudioSettingsView::_HideDeskbarVolumeControl()
+{
+	BDeskbar deskbar;
+	status_t status = deskbar.RemoveItem("MediaReplicant");
+	if (status != B_OK) {
+		fprintf(stderr, B_TRANSLATE(
+			"Couldn't remove volume control in Deskbar: %s\n"),
+			strerror(status));
+	}
+}
+
+
+ChannelMenuItem*
+AudioSettingsView::_ChannelMenuItemAt(int32 index)
+{
+	return static_cast<ChannelMenuItem*>(fChannelMenu->ItemAt(index));
+}
+
+
+VideoSettingsView::VideoSettingsView()
+{
+	BBox* defaultsBox = new BBox("defaults");
+	defaultsBox->SetLabel(B_TRANSLATE("Defaults"));
+	BGridView* defaultsGridView = new BGridView();
+	
+	BMenuField* inputMenuField = new BMenuField("inputMenuField",
+		B_TRANSLATE("Video input:"), InputMenu(), NULL);
+
+	BMenuField* outputMenuField = new BMenuField("outputMenuField",
+		B_TRANSLATE("Video output:"), OutputMenu(), NULL);
+
+	BLayoutBuilder::Grid<>(defaultsGridView)
+		.SetInsets(B_USE_DEFAULT_SPACING, 0, B_USE_DEFAULT_SPACING, 0)
+		.AddMenuField(inputMenuField, 0, 0)
+		.AddMenuField(outputMenuField, 0, 1)
+		.Add(MakeRestartMessageView(), 0, 2, 2, 1);
+
+	defaultsBox->AddChild(defaultsGridView);
+
+	const char* realtimeLabel = B_TRANSLATE("Enable real-time video");
+	const char*	realtimeInfo = B_TRANSLATE(
+		"Enabling real-time video allows system to "
+		"perform video operations as fast and smoothly as possible.  It "
+		"achieves optimum performance by using more RAM.\n\n"
+		"Only enable this feature if you need the lowest latency possible.");
+
+	BLayoutBuilder::Grid<>(this)
+		.SetInsets(0, 0, 0, 0)
+		.Add(defaultsBox, 0, 0, 2, 1)
+		.Add(MakeRealtimeBox(realtimeInfo, B_MEDIA_REALTIME_VIDEO,
+			realtimeLabel), 0, 1, 2, 1)
+		.Add(MakeRestartButton(), 1, 2, 1, 1)
+		.SetRowWeight(1, 10);
+}
+
+
+void
+VideoSettingsView::SetDefaultInput(const dormant_node_info* info)
+{
+	SettingsView::SetDefaultInput(info);
+	_MediaWindow()->UpdateInputListItem(MediaListItem::VIDEO_TYPE, info);
+	BMediaRoster::Roster()->SetVideoInput(*info);
+}
+
+
+void
+VideoSettingsView::SetDefaultOutput(const dormant_node_info* info)
+{
+	SettingsView::SetDefaultOutput(info);
+	_MediaWindow()->UpdateOutputListItem(MediaListItem::VIDEO_TYPE, info);
+	BMediaRoster::Roster()->SetVideoOutput(*info);
+}

src/preferences/media/MediaViews.h

@@ -14,69 +14,145 @@
 // ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
 #ifndef __MEDIAVIEWS_H__
 #define __MEDIAVIEWS_H__
-#include <CheckBox.h>
+#include <GridView.h>
 #include <MediaAddOn.h>
 #include <MenuItem.h>
-#include <StringView.h>
-#include <View.h>
 
 #include <ObjectList.h>
 
 
+class BBox;
+class BButton;
+class BCheckBox;
+class BMenu;
+class BMenuField;
+class BStringView;
+
+class MediaWindow;
+
+
 const uint32 ML_RESTART_MEDIA_SERVER = 'resr';
-const uint32 ML_SHOW_VOLUME_CONTROL = 'shvc';
 const uint32 ML_ENABLE_REAL_TIME = 'enrt';
-const uint32 ML_DEFAULT_CHANGE = 'dech';
-const uint32 ML_DEFAULTOUTPUT_CHANGE = 'doch';
+const uint32 ML_DEFAULT_CHANNEL_CHANGED = 'chch';
 
 
-class SettingsItem : public BMenuItem
+class NodeMenuItem : public BMenuItem
 {
 public:
-								SettingsItem(dormant_node_info* info,
+								NodeMenuItem(const dormant_node_info* info,
 									BMessage* message, char shortcut = 0,
 									uint32 modifiers = 0);
 	virtual	status_t			Invoke(BMessage* message = NULL);
 
-			dormant_node_info*	fInfo;
+			const dormant_node_info* NodeInfo() const {return fInfo;}
+private:
+
+			const dormant_node_info* fInfo;
 };
 
 
-class Settings2Item : public BMenuItem
+class ChannelMenuItem : public BMenuItem
 {
 public:
-								Settings2Item(dormant_node_info* info,
-									media_input* input,	BMessage* message,
-									char shortcut = 0, uint32 modifiers = 0);
-	virtual						~Settings2Item();
+								ChannelMenuItem(media_input* input,
+									BMessage* message, char shortcut = 0,
+									uint32 modifiers = 0);
+	virtual						~ChannelMenuItem();
+
+			int32				DestinationID();
+			media_input*		Input();
+
 	virtual	status_t			Invoke(BMessage* message = NULL);
 
-			dormant_node_info*	fInfo;
+private:
 			media_input*		fInput;
 };
 
 
-class SettingsView : public BView
+class SettingsView : public BGridView
 {
 public:
 	typedef BObjectList<dormant_node_info> NodeList;
 
-								SettingsView(bool isVideo);
-			void				AddNodes(NodeList &nodes, bool isInput);
-			void				SetDefault(dormant_node_info &info,
-									bool isInput, int32 outputID = -1);
+								SettingsView();
+			void				AddInputNodes(NodeList& nodes);
+			void				AddOutputNodes(NodeList& nodes);
+
+	virtual	void				SetDefaultInput(const dormant_node_info* info);
+	virtual	void				SetDefaultOutput(const dormant_node_info* info);
+
+	virtual	void				MessageReceived(BMessage* message);
+	virtual	void				AttachedToWindow();
+
+			void				RestartRequired(bool required);
+
+protected:
+
+			BMenu*				InputMenu() {return fInputMenu;}
+			BMenu*				OutputMenu() {return fOutputMenu;}
+
+			BBox*				MakeRealtimeBox(const char* info,
+									uint32 realtimeMask,
+									const char* checkboxLabel);
+			BStringView*		MakeRestartMessageView();
+			BButton*			MakeRestartButton();
+
+			void				_EmptyMenu(BMenu* menu);
+			MediaWindow*		_MediaWindow() const;
+
+private:
+			void				_FlipRealtimeFlag(uint32 mask);
+
+			void				_PopulateMenu(BMenu* menu, NodeList& nodes,
+									const BMessage& message);
+			NodeMenuItem*		_FindNodeItem(BMenu* menu,
+									const dormant_node_info* nodeInfo);
+			void				_ClearMenuSelection(BMenu* menu);
 
 			BCheckBox* 			fRealtimeCheckBox;
-			BCheckBox* 			fVolumeCheckBox;
 
 			BMenu* 				fInputMenu;
 			BMenu* 				fOutputMenu;
-			BMenu*				fChannelMenu;
-				// (audio only)
 			BStringView*		fRestartView;
-
-private:
-			bool			fIsVideo;
 };	
 
+
+class AudioSettingsView : public SettingsView
+{
+public:
+								AudioSettingsView();
+
+			void				SetDefaultChannel(int32 channelID);
+
+	virtual	void				SetDefaultInput(const dormant_node_info* info);
+	virtual	void				SetDefaultOutput(const dormant_node_info* info);
+
+	virtual	void				MessageReceived(BMessage* message);
+	virtual	void				AttachedToWindow();
+
+private:
+			BMenuField*			_MakeChannelMenu();
+			BCheckBox*			_MakeVolumeCheckBox();
+			void				_FillChannelMenu(const dormant_node_info* info);
+
+			void				_ShowDeskbarVolumeControl();
+			void				_HideDeskbarVolumeControl();
+
+			ChannelMenuItem*	_ChannelMenuItemAt(int32 index);
+
+			BMenu*				fChannelMenu;
+			BCheckBox* 			fVolumeCheckBox;
+};
+
+
+class VideoSettingsView : public SettingsView
+{
+public:
+								VideoSettingsView();
+
+	virtual	void				SetDefaultInput(const dormant_node_info* info);
+	virtual	void				SetDefaultOutput(const dormant_node_info* info);
+
+};
+
 #endif

src/preferences/media/MediaWindow.cpp

@@ -1,9 +1,10 @@
 /*
- * Copyright (c) 2003-2005, Haiku, Inc.
+ * Copyright (c) 2003-2010, Haiku, Inc.
  * Distributed under the terms of the MIT license.
  *
  * Authors:
  *		Sikosis, Jérôme Duval
+ *		yourpalal, Alex Wilson
  */
 
 
@@ -16,10 +17,11 @@
 #include <Autolock.h>
 #include <Bitmap.h>
 #include <Button.h>
+#include <CardLayout.h>
 #include <Catalog.h>
 #include <Debug.h>
 #include <Deskbar.h>
-#include <GroupView.h>
+#include <LayoutBuilder.h>
 #include <Locale.h>
 #include <MediaRoster.h>
 #include <MediaTheme.h>
@@ -44,6 +46,34 @@ const uint32 ML_SELECTED_NODE = 'MlSN';
 const uint32 ML_INIT_MEDIA = 'MlIM';
 
 
+class NodeListItemUpdater : public MediaListItem::Visitor {
+public:
+	typedef void (NodeListItem::*UpdateMethod)(bool);
+
+	NodeListItemUpdater(NodeListItem* target, UpdateMethod action)
+		:
+		fComparator(target),
+		fAction(action)
+	{
+	}
+
+
+	virtual	void	Visit(AudioMixerListItem*){}
+	virtual	void	Visit(DeviceListItem*){}
+
+	virtual void	Visit(NodeListItem* item)
+	{
+		item->Accept(fComparator);
+		(item->*(fAction))(fComparator.result == 0);
+	}
+
+private:
+
+			NodeListItem::Comparator		fComparator;
+			UpdateMethod					fAction;
+};
+
+
 MediaWindow::SmartNode::SmartNode(const BMessenger& notifyHandler)
 	:
 	fNode(NULL),
@@ -59,17 +89,16 @@ MediaWindow::SmartNode::~SmartNode()
 
 
 void
-MediaWindow::SmartNode::SetTo(dormant_node_info* info)
+MediaWindow::SmartNode::SetTo(const dormant_node_info* info)
 {
 	_FreeNode();
 	if (!info)
 		return;
 
 	fNode = new media_node();
-
-	// TODO: check error codes
 	BMediaRoster* roster = BMediaRoster::Roster();
 
+	// TODO: error codes
 	media_node_id node_id;
 	if (roster->GetInstancesFor(info->addon, info->flavor_id, &node_id) == B_OK)
 		roster->GetNodeFor(node_id, fNode);
@@ -122,7 +151,7 @@ MediaWindow::SmartNode::_FreeNode()
 // MediaWindow - Constructor
 MediaWindow::MediaWindow(BRect frame)
 	:
-	BWindow (frame, B_TRANSLATE("Media"), B_TITLED_WINDOW,
+	BWindow(frame, B_TRANSLATE("Media"), B_TITLED_WINDOW,
 		B_ASYNCHRONOUS_CONTROLS | B_AUTO_UPDATE_SIZE_LIMITS),
 	fCurrentNode(BMessenger(this)),
 	fParamWeb(NULL),
@@ -148,8 +177,6 @@ MediaWindow::~MediaWindow()
 {
 	_EmptyNodeLists();
 	_ClearParamView();
-	delete fVideoView;
-	delete fAudioView;
 
 	char buffer[512];
 	BRect rect = Frame();
@@ -169,7 +196,7 @@ MediaWindow::~MediaWindow()
 
 
 void
-MediaWindow::SelectNode(dormant_node_info* node)
+MediaWindow::SelectNode(const dormant_node_info* node)
 {
 	fCurrentNode.SetTo(node);
 	_MakeParamView();
@@ -180,7 +207,7 @@ MediaWindow::SelectNode(dormant_node_info* node)
 void
 MediaWindow::SelectAudioSettings(const char* title)
 {
-	fContentView->AddChild(fAudioView);
+	fContentLayout->SetVisibleItem(fContentLayout->IndexOfView(fAudioView));
 	fTitleView->SetLabel(title);
 }
 
@@ -188,7 +215,7 @@ MediaWindow::SelectAudioSettings(const char* title)
 void
 MediaWindow::SelectVideoSettings(const char* title)
 {
-	fContentView->AddChild(fVideoView);
+	fContentLayout->SetVisibleItem(fContentLayout->IndexOfView(fVideoView));
 	fTitleView->SetLabel(title);
 }
 
@@ -205,6 +232,34 @@ MediaWindow::SelectAudioMixer(const char* title)
 }
 
 
+void
+MediaWindow::UpdateInputListItem(MediaListItem::media_type type,
+	const dormant_node_info* node)
+{
+	NodeListItem compareTo(node, type);
+	NodeListItemUpdater updater(&compareTo, &NodeListItem::SetDefaultInput);
+	for (int32 i = 0; i < fListView->CountItems(); i++) {
+		MediaListItem* item = static_cast<MediaListItem*>(fListView->ItemAt(i));
+		item->Accept(updater);
+	}
+	fListView->Invalidate();
+}
+
+
+void
+MediaWindow::UpdateOutputListItem(MediaListItem::media_type type,
+	const dormant_node_info* node)
+{
+	NodeListItem compareTo(node, type);
+	NodeListItemUpdater updater(&compareTo, &NodeListItem::SetDefaultOutput);
+	for (int32 i = 0; i < fListView->CountItems(); i++) {
+		MediaListItem* item = static_cast<MediaListItem*>(fListView->ItemAt(i));
+		item->Accept(updater);
+	}
+	fListView->Invalidate();
+}
+
+
 void
 MediaWindow::_FindNodes()
 {
@@ -249,7 +304,8 @@ MediaWindow::_FindNodes(media_type type, uint64 kind, NodeList& into)
 
 	for (int32 i = 0; i < node_info_count; i++) {
 		PRINT(("node : %s, media_addon %i, flavor_id %i\n",
-			node_info[i].name, node_info[i].addon, node_info[i].flavor_id));
+			node_info[i].name, (int)node_info[i].addon,
+			(int)node_info[i].flavor_id));
 
 		dormant_node_info* info = new dormant_node_info();
 		strncpy(info->name, node_info[i].name, B_MEDIA_NAME_LENGTH);
@@ -263,14 +319,22 @@ MediaWindow::_FindNodes(media_type type, uint64 kind, NodeList& into)
 NodeListItem*
 MediaWindow::_FindNodeListItem(dormant_node_info* info)
 {
+	NodeListItem audioItem(info, MediaListItem::AUDIO_TYPE);
+	NodeListItem videoItem(info, MediaListItem::VIDEO_TYPE);
+
+	NodeListItem::Comparator audioComparator(&audioItem);
+	NodeListItem::Comparator videoComparator(&videoItem);
+
 	for (int32 i = 0; i < fListView->CountItems(); i++) {
 		MediaListItem* item
 			= static_cast<MediaListItem*>(fListView->ItemAt(i));
-		dormant_node_info* itemInfo = item->NodeInfo();
-		if (itemInfo && itemInfo->addon == info->addon
-				&& itemInfo->flavor_id == info->flavor_id) {
-			return dynamic_cast<NodeListItem*>(item);
-		}
+		item->Accept(audioComparator);
+		if (audioComparator.result == 0)
+			return static_cast<NodeListItem*>(item);
+
+		item->Accept(videoComparator);
+		if (videoComparator.result == 0)
+			return static_cast<NodeListItem*>(item);
 	}
 	return NULL;
 }
@@ -313,43 +377,35 @@ MediaWindow::InitWindow()
 	scrollView->SetExplicitMaxSize(BSize(scrollWidth, B_SIZE_UNSET));
 
 	// Create the Views
-	fBox = new BBox("background", B_WILL_DRAW | B_FRAME_EVENTS,
-		B_PLAIN_BORDER);
-	SetLayout(new BGroupLayout(B_HORIZONTAL));
-	GetLayout()->AddView(fBox);
-
-	// StringViews
 	fTitleView = new BSeparatorView(B_HORIZONTAL, B_FANCY_BORDER);
 	fTitleView->SetLabel(B_TRANSLATE("Audio settings"));
 	fTitleView->SetFont(be_bold_font);
 
-	fContentView = new BBox("contentView", B_WILL_DRAW | B_FRAME_EVENTS,
-		B_NO_BORDER);
+	fContentLayout = new BCardLayout();
+	new BView("content view", 0, fContentLayout);
+	fContentLayout->Owner()->SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
 
-	fAudioView = new SettingsView(false);
-	fVideoView = new SettingsView(true);
+	fAudioView = new AudioSettingsView();
+	fContentLayout->AddView(fAudioView);
+
+	fVideoView = new VideoSettingsView();
+	fContentLayout->AddView(fVideoView);
 
 
 	// Layout all views
-	BGroupView* rightView = new BGroupView(B_VERTICAL, 5);
-	rightView->GroupLayout()->SetInsets(14, 0, 0, 0);
-	rightView->GroupLayout()->AddView(fTitleView);
-	rightView->GroupLayout()->AddView(fContentView);
-
-	BGroupLayout* rootLayout = new BGroupLayout(B_HORIZONTAL);
-	rootLayout->SetInsets(14, 14, 14, 14);
-	fBox->SetLayout(rootLayout);
-
-	rootLayout->AddView(scrollView);
-
-	rootLayout->AddView(rightView);
+	BLayoutBuilder::Group<>(this, B_HORIZONTAL)
+		.SetInsets(14, 14, 14, 14)
+		.Add(scrollView)
+		.AddGroup(B_VERTICAL)
+			.SetInsets(14, 0, 0, 0)
+			.Add(fTitleView)
+			.Add(fContentLayout);
 
 	// Start the window
 	fInitCheck = InitMedia(true);
 	if (fInitCheck != B_OK) {
 		PostMessage(B_QUIT_REQUESTED);
-	} else {
-		if (IsHidden())
+	} else 	if (IsHidden()) {
 			Show();
 	}
 }
@@ -412,10 +468,10 @@ MediaWindow::InitMedia(bool first)
 	_AddNodeItems(fAudioOutputs, MediaListItem::AUDIO_TYPE);
 	_AddNodeItems(fAudioInputs, MediaListItem::AUDIO_TYPE);
 
-	fAudioView->AddNodes(fAudioOutputs, false);
-	fAudioView->AddNodes(fAudioInputs, true);
-	fVideoView->AddNodes(fVideoOutputs, false);
-	fVideoView->AddNodes(fVideoInputs, true);
+	fAudioView->AddOutputNodes(fAudioOutputs);
+	fAudioView->AddInputNodes(fAudioInputs);
+	fVideoView->AddOutputNodes(fVideoOutputs);
+	fVideoView->AddInputNodes(fVideoInputs);
 
 	// build our list view
 	DeviceListItem* audio = new DeviceListItem(B_TRANSLATE("Audio settings"),
@@ -439,43 +495,34 @@ MediaWindow::InitMedia(bool first)
 
 	if (roster->GetAudioInput(&default_node) == B_OK) {
 		roster->GetDormantNodeFor(default_node, &node_info);
-		NodeListItem* item = _FindNodeListItem(&node_info);
-		if (item)
-			item->SetDefaultInput(true);
-		fAudioView->SetDefault(node_info, true);
+		fAudioView->SetDefaultInput(&node_info);
+			// this causes our listview to be updated as well
 	}
 
 	if (roster->GetAudioOutput(&default_node, &outputID, &outputName)==B_OK) {
 		roster->GetDormantNodeFor(default_node, &node_info);
-		NodeListItem* item = _FindNodeListItem(&node_info);
-		if (item)
-			item->SetDefaultOutput(true);
-		fAudioView->SetDefault(node_info, false, outputID);
+		fAudioView->SetDefaultOutput(&node_info);
+		fAudioView->SetDefaultChannel(outputID);
+			// this causes our listview to be updated as well
 	}
 
 	if (roster->GetVideoInput(&default_node)==B_OK) {
 		roster->GetDormantNodeFor(default_node, &node_info);
-		NodeListItem* item = _FindNodeListItem(&node_info);
-		if (item)
-			item->SetDefaultInput(true);
-		fVideoView->SetDefault(node_info, true);
+		fVideoView->SetDefaultInput(&node_info);
+			// this causes our listview to be updated as well
 	}
 
 	if (roster->GetVideoOutput(&default_node)==B_OK) {
 		roster->GetDormantNodeFor(default_node, &node_info);
-		NodeListItem* item = _FindNodeListItem(&node_info);
-		if (item)
-			item->SetDefaultOutput(true);
-		fVideoView->SetDefault(node_info, false);
+		fVideoView->SetDefaultOutput(&node_info);
+			// this causes our listview to be updated as well
 	}
 
 	if (first) {
 		fListView->Select(fListView->IndexOf(mixer));
 	} else {
-		if (!fAudioView->fRestartView->IsHidden())
-			fAudioView->fRestartView->Hide();
-		if (!fVideoView->fRestartView->IsHidden())
-			fVideoView->fRestartView->Hide();
+		fAudioView->RestartRequired(false);
+		fVideoView->RestartRequired(false);
 
 		if (isVideoSelected)
 			fListView->Select(fListView->IndexOf(video));
@@ -505,15 +552,6 @@ MediaWindow::QuitRequested()
 }
 
 
-void
-MediaWindow::FrameResized (float width, float height)
-{
-	// This makes sure our SideBar colours down to the bottom when resized
-	BRect r;
-	r = Bounds();
-}
-
-
 // ErrorAlert -- Displays a BAlert Box with a Custom Error or Debug Message
 void
 ErrorAlert(char* errorMessage) {
@@ -533,98 +571,6 @@ MediaWindow::MessageReceived(BMessage* message)
 		case ML_INIT_MEDIA:
 			InitMedia(false);
 			break;
-		case ML_DEFAULTOUTPUT_CHANGE:
-			{
-				int32 index;
-				if (message->FindInt32("index", &index)!=B_OK)
-					break;
-				Settings2Item* item = static_cast<Settings2Item*>(
-					fAudioView->fChannelMenu->ItemAt(index));
-
-				if (item) {
-					BMediaRoster* roster = BMediaRoster::Roster();
-					roster->SetAudioOutput(*item->fInput);
-
-					if (fAudioView->fRestartView->IsHidden())
-						fAudioView->fRestartView->Show();
-				} else
-					fprintf(stderr, "Settings2Item not found\n");
-			}
-			break;
-		case ML_DEFAULT_CHANGE:
-			{
-				bool isVideo = true;
-				bool isInput = true;
-				if (message->FindBool("isVideo", &isVideo)!=B_OK)
-					break;
-				if (message->FindBool("isInput", &isInput)!=B_OK)
-					break;
-				int32 index;
-				if (message->FindInt32("index", &index)!=B_OK)
-					break;
-				SettingsView* settingsView = isVideo ? fVideoView : fAudioView;
-				BMenu* menu = isInput ? settingsView->fInputMenu
-					: settingsView->fOutputMenu;
-				SettingsItem* item = static_cast<SettingsItem*>(
-					menu->ItemAt(index));
-
-				if (item) {
-					PRINT(("isVideo %i isInput %i\n", isVideo, isInput));
-					BMediaRoster* roster = BMediaRoster::Roster();
-					if (isVideo) {
-						if (isInput)
-							roster->SetVideoInput(*item->fInfo);
-						else
-							roster->SetVideoOutput(*item->fInfo);
-					} else {
-						if (isInput)
-							roster->SetAudioInput(*item->fInfo);
-						else {
-							roster->SetAudioOutput(*item->fInfo);
-							fAudioView->SetDefault(*item->fInfo, false, 0);
-						}
-					}
-
-					NodeListItem* oldListItem = NULL;
-					MediaListItem::media_type mediaType = isVideo ?
-						MediaListItem::VIDEO_TYPE : MediaListItem::AUDIO_TYPE;
-					for (int32 j = 0; j < fListView->CountItems(); j++) {
-						NodeListItem* item = dynamic_cast<NodeListItem*>(
-							fListView->ItemAt(j));
-						if (!oldListItem)
-							continue;
-						if (oldListItem->Type() != mediaType)
-							continue;
-						if (isInput && !oldListItem->IsDefaultInput()) {
-							oldListItem = item;
-							break;
-						} else if (!isInput && oldListItem->IsDefaultOutput()) {
-							oldListItem = item;
-							break;
-						}
-					}
-					if (oldListItem && isInput)
-						oldListItem->SetDefaultInput(false);
-					else if (oldListItem && !isInput)
-						oldListItem->SetDefaultOutput(false);
-					else
-						fprintf(stderr, "oldListItem not found\n");
-
-					NodeListItem* listItem = _FindNodeListItem(item->fInfo);
-					if (listItem && isInput)
-						listItem->SetDefaultInput(true);
-					else if (listItem && !isInput)
-						listItem->SetDefaultOutput(true);
-					else
-						fprintf(stderr, "MediaListItem not found\n");
-					fListView->Invalidate();
-
-					if (settingsView->fRestartView->IsHidden())
-						settingsView->fRestartView->Show();
-				} else
-					fprintf(stderr, "SettingsItem not found\n");
-			}
-			break;
 		case ML_RESTART_MEDIA_SERVER:
 		{
 			thread_id thread = spawn_thread(&MediaWindow::RestartMediaServices,
@@ -635,65 +581,21 @@ MediaWindow::MessageReceived(BMessage* message)
 				resume_thread(thread);
 			break;
 		}
-		case ML_SHOW_VOLUME_CONTROL:
-		{
-			BDeskbar deskbar;
-			if (fAudioView->fVolumeCheckBox->Value() == B_CONTROL_ON) {
-				BEntry entry("/bin/desklink", true);
-				int32 id;
-				entry_ref ref;
-				status_t status = entry.GetRef(&ref);
-				if (status == B_OK)
-					status = deskbar.AddItem(&ref, &id);
-
-				if (status != B_OK) {
-					fprintf(stderr, B_TRANSLATE(
-						"Couldn't add volume control in Deskbar: %s\n"),
-						strerror(status));
-				}
-			} else {
-				status_t status = deskbar.RemoveItem("MediaReplicant");
-				if (status != B_OK) {
-					fprintf(stderr, B_TRANSLATE(
-						"Couldn't remove volume control in Deskbar: %s\n"),
-						strerror(status));
-				}
-			}
-			break;
-		}
-		case ML_ENABLE_REAL_TIME:
-			{
-				bool isVideo = true;
-				if (message->FindBool("isVideo", &isVideo) != B_OK)
-					break;
-				SettingsView* settingsView = isVideo ? fVideoView : fAudioView;
-				uint32 flags;
-				uint32 realtimeFlag = isVideo
-					? B_MEDIA_REALTIME_VIDEO : B_MEDIA_REALTIME_AUDIO;
-				BMediaRoster* roster = BMediaRoster::Roster();
-				roster->GetRealtimeFlags(&flags);
-				if (settingsView->fRealtimeCheckBox->Value() == B_CONTROL_ON)
-					flags |= realtimeFlag;
-				else
-					flags &= ~realtimeFlag;
-				roster->SetRealtimeFlags(flags);
-			}
-			break;
 		case B_MEDIA_WEB_CHANGED:
 		case ML_SELECTED_NODE:
-			{
-				PRINT_OBJECT(*message);
+		{
+			PRINT_OBJECT(*message);
 
-				MediaListItem* item = static_cast<MediaListItem*>(
-						fListView->ItemAt(fListView->CurrentSelection()));
-				if (!item)
-					break;
+			MediaListItem* item = static_cast<MediaListItem*>(
+					fListView->ItemAt(fListView->CurrentSelection()));
+			if (!item)
+				break;
 
-				fCurrentNode.SetTo(NULL);
-				_ClearParamView();
-				item->AlterWindow(this);
-			}
+			fCurrentNode.SetTo(NULL);
+			_ClearParamView();
+			item->AlterWindow(this);
 			break;
+		}
 		case B_SOME_APP_LAUNCHED:
 			{
 				PRINT_OBJECT(*message);
@@ -791,13 +693,18 @@ MediaWindow::UpdateProgress(int stage, const char * message, void * cookie)
 void
 MediaWindow::_ClearParamView()
 {
-	BView* child = fContentView->ChildAt(0);
-	if (child)
-		child->RemoveSelf();
-	if (child != fVideoView && child != fAudioView)
-		delete child;
-	delete fParamWeb;
-	fParamWeb = NULL;
+	BLayoutItem* item = fContentLayout->VisibleItem();
+	if (!item)
+		return;
+
+	BView* view = item->View();
+	if (view != fVideoView && view != fAudioView) {
+		fContentLayout->RemoveItem(item);
+		delete item;
+		delete view;
+		delete fParamWeb;
+		fParamWeb = NULL;
+	}
 }
 
 
@@ -810,17 +717,16 @@ MediaWindow::_MakeParamView()
 	fParamWeb = NULL;
 	BMediaRoster* roster = BMediaRoster::Roster();
 	if (roster->GetParameterWebFor(fCurrentNode, &fParamWeb) == B_OK) {
-		BView* paramView = BMediaTheme::ViewFor(fParamWeb);
+		BRect hint(fContentLayout->Frame());
+		BView* paramView = BMediaTheme::ViewFor(fParamWeb, &hint);
 		if (paramView) {
-			fContentView->AddChild(paramView);
-			paramView->ResizeTo(1, 1);
-				// make sure we don't get stuck with a very large
-				// paramView
+			fContentLayout->AddView(paramView);
+			fContentLayout->SetVisibleItem(fContentLayout->CountItems() - 1);
 			return;
 		}
 	}
+
 	_MakeEmptyParamView();
-	
 }
 
 
@@ -840,7 +746,8 @@ MediaWindow::_MakeEmptyParamView()
 	stringView->SetExplicitAlignment(centered);
 	stringView->SetAlignment(B_ALIGN_CENTER);
 	
-	fContentView->AddChild(stringView);
+	fContentLayout->AddView(stringView);
+	fContentLayout->SetVisibleItem(fContentLayout->CountItems() - 1);
 
 	rgb_color panel = stringView->LowColor();
 	stringView->SetHighColor(tint_color(panel,

src/preferences/media/MediaWindow.h

@@ -16,7 +16,6 @@
 #define __MEDIAWINDOWS_H__
 
 
-#include <Box.h>
 #include <ListView.h>
 #include <MediaAddOn.h>
 #include <ParameterWeb.h>
@@ -34,6 +33,7 @@
 #define SETTINGS_FILE "MediaPrefs Settings"
 
 
+class BCardLayout;
 class BSeparatorView;
 // struct dormant_node_info;
 
@@ -46,15 +46,21 @@ public:
     		status_t			InitCheck();
 
 	// methods to be called by MediaListItems...
-			void				SelectNode(dormant_node_info* node);
+			void				SelectNode(const dormant_node_info* node);
 			void				SelectAudioSettings(const char* title);
 			void				SelectVideoSettings(const char* title);
 			void				SelectAudioMixer(const char* title);
 
+	// methods to be called by SettingsViews...
+			void				UpdateInputListItem(
+									MediaListItem::media_type type,
+									const dormant_node_info* node);
+			void				UpdateOutputListItem(
+									MediaListItem::media_type type,
+									const dormant_node_info* node);
+
     virtual	bool 				QuitRequested();
     virtual	void				MessageReceived(BMessage* message);
-    virtual	void				FrameResized(float width, float height);
-
 
 private:
 
@@ -83,7 +89,7 @@ private:
 	struct SmartNode {
 								SmartNode(const BMessenger& notifyHandler);
 								~SmartNode();
-			void				SetTo(dormant_node_info* node);
+			void				SetTo(const dormant_node_info* node);
 			void				SetTo(const media_node& node);
 			bool				IsSet();
 								operator media_node();
@@ -94,12 +100,11 @@ private:
 			BMessenger			fMessenger;
 	};
 	
-			BBox*				fBox;
 			BListView*			fListView;
 			BSeparatorView*		fTitleView;
-			BView*				fContentView;
-			SettingsView*		fAudioView;
-			SettingsView*		fVideoView;
+			BCardLayout*		fContentLayout;
+			AudioSettingsView*	fAudioView;
+			VideoSettingsView*	fVideoView;
     			    
 			SmartNode			fCurrentNode;
 			BParameterWeb*		fParamWeb;