EXP-1239 WIP make toolbars wrap when there is not enough room

initial pass at wrapping

2 files changed, 160 insertions, 63 deletions

diff --git a/indra/llui/lltoolbar.cpp b/indra/llui/lltoolbar.cpp
index 2c1e141ca7..1e8be93f17 100644
--- a/indra/llui/lltoolbar.cpp
+++ b/indra/llui/lltoolbar.cpp
@@ -30,9 +30,10 @@
 #include "boost/foreach.hpp"
 #include "lltoolbar.h"
 
+// uncomment this and remove the one in llui.cpp when there is an external reference to this translation unit
+// thanks, MSVC!
 //static LLDefaultChildRegistry::Register<LLToolBar> r1("toolbar");
 
-
 namespace LLToolBarEnums
 {
 	LLLayoutStack::ELayoutOrientation getOrientation(SideType sideType)
@@ -47,85 +48,88 @@ namespace LLToolBarEnums
 		return orientation;
 	}
 }
-
+using namespace LLToolBarEnums;
 
 LLToolBar::Params::Params()
 :	button_display_mode("button_display_mode"),
 	buttons("button"),
-	side("side")
+	side("side"),
+	button_icon("button_icon"),
+	button_icon_and_text("button_icon_and_text"),
+	wrap("wrap", true),
+	min_width("min_width", 0),
+	max_width("max_width", S32_MAX),
+	background_image("background_image")
 {}
 
 LLToolBar::LLToolBar(const Params& p)
 :	LLUICtrl(p),
 	mButtonType(p.button_display_mode),
 	mSideType(p.side),
-	mStack(NULL)
+	mWrap(p.wrap),
+	mNeedsLayout(false),
+	mCenterPanel(NULL),
+	mCenteringStack(NULL),
+	mMinWidth(p.min_width),
+	mMaxWidth(p.max_width),
+	mBackgroundImage(p.background_image)
 {
 }
 
 void LLToolBar::initFromParams(const LLToolBar::Params& p)
 {
-	LLLayoutStack::ELayoutOrientation orientation = LLToolBarEnums::getOrientation(p.side);
+	LLLayoutStack::ELayoutOrientation orientation = getOrientation(p.side);
 
 	LLLayoutStack::Params centering_stack_p;
+	centering_stack_p.name = "centering_stack";
 	centering_stack_p.rect = getLocalRect();
 	centering_stack_p.follows.flags = FOLLOWS_ALL;
 	centering_stack_p.orientation = orientation;
-	centering_stack_p.name = "centering_stack";
 
+	mCenteringStack = LLUICtrlFactory::create<LLLayoutStack>(centering_stack_p);
+	addChild(mCenteringStack);
+	
 	LLLayoutPanel::Params border_panel_p;
 	border_panel_p.name = "border_panel";
 	border_panel_p.rect = getLocalRect();
 	border_panel_p.auto_resize = true;
 	border_panel_p.user_resize = false;
-
-	LLLayoutStack* centering_stack = LLUICtrlFactory::create<LLLayoutStack>(centering_stack_p);
-	addChild(centering_stack);
 	
+	mCenteringStack->addChild(LLUICtrlFactory::create<LLLayoutPanel>(border_panel_p));
+
 	LLLayoutPanel::Params center_panel_p;
 	center_panel_p.name = "center_panel";
 	center_panel_p.rect = getLocalRect();
 	center_panel_p.auto_resize = false;
 	center_panel_p.user_resize = false;
 	center_panel_p.fit_content = true;
+	mCenterPanel = LLUICtrlFactory::create<LLLayoutPanel>(center_panel_p);
+	mCenteringStack->addChild(mCenterPanel);
+	
+	mCenteringStack->addChild(LLUICtrlFactory::create<LLLayoutPanel>(border_panel_p));
 
-	centering_stack->addChild(LLUICtrlFactory::create<LLLayoutPanel>(border_panel_p));
-	LLLayoutPanel* center_panel = LLUICtrlFactory::create<LLLayoutPanel>(center_panel_p);
-	centering_stack->addChild(center_panel);
-	centering_stack->addChild(LLUICtrlFactory::create<LLLayoutPanel>(border_panel_p));
-
-	LLLayoutStack::Params stack_p;
-	stack_p.rect = getLocalRect();
-	stack_p.name = "button_stack";
-	stack_p.orientation = orientation;
-	stack_p.follows.flags = (orientation == LLLayoutStack::HORIZONTAL)
-							? (FOLLOWS_TOP|FOLLOWS_BOTTOM)  // horizontal
-							: (FOLLOWS_LEFT|FOLLOWS_RIGHT); // vertical
-
-	mStack = LLUICtrlFactory::create<LLLayoutStack>(stack_p);
-	center_panel->addChild(mStack);
+	addRow();
 
 	BOOST_FOREACH (LLToolBarButton::Params button_p, p.buttons)
 	{
-		// remove any offset from button
 		LLRect button_rect(button_p.rect);
-
-		if (orientation == LLLayoutStack::HORIZONTAL)
-		{
-			button_rect.setOriginAndSize(0, 0, 0, getRect().getHeight());
+		{ // remove any offset from button
+			if (orientation == LLLayoutStack::HORIZONTAL)
+			{
+				button_rect.setOriginAndSize(0, 0, mMinWidth, getRect().getHeight());
+			}
+			else // VERTICAL
+			{
+				button_rect.setOriginAndSize(0, 0, mMinWidth, button_rect.getHeight());
+			}
 		}
-		else // VERTICAL
-		{
-			button_rect.setOriginAndSize(0, 0, 0, button_rect.getHeight());
-		}
-		button_p.follows.flags = FOLLOWS_NONE;
-		button_p.rect = button_rect;
-		button_p.chrome = true;
-		button_p.auto_resize = true;
 
-		LLToolBarButton* button = LLUICtrlFactory::create<LLToolBarButton>(button_p);
+		button_p.fillFrom((mButtonType == BTNTYPE_ICONS_ONLY)
+							? p.button_icon						// icon only
+							: p.button_icon_and_text);			// icon + text
 
-		addButton(button);
+		mButtons.push_back(LLUICtrlFactory::create<LLToolBarButton>(button_p));
+		mNeedsLayout = true;
 	}
 
 	updateLayout();
@@ -142,57 +146,127 @@ void LLToolBar::addButton(LLToolBarButton* buttonp)
 	LLLayoutPanel* panel = LLUICtrlFactory::create<LLLayoutPanel>(panel_p);
 	
 	panel->addChild(buttonp);
-	mStack->addChild(panel);
-	mButtons.push_back(buttonp);
+	mStacks.back()->addChild(panel);
 }
 
 void LLToolBar::updateLayout()
 {
-	S32 total_width = 0;
-	S32 total_height = 0;
-	S32 max_width = getRect().getWidth();
-	S32 max_height = getRect().getHeight();
+	mCenteringStack->updateLayout();
+
+	if (!mNeedsLayout) return;
+	mNeedsLayout = false;
+
+	{ // clean up existing rows
+		BOOST_FOREACH(LLToolBarButton* button, mButtons)
+		{
+			if (button->getParent())
+			{
+				button->getParent()->removeChild(button);
+			}
+		}	
+
+		BOOST_FOREACH(LLLayoutStack* stack, mStacks)
+		{
+			delete stack;
+		}
+		mStacks.clear();
+	}
+	// start with one row of buttons
+	addRow();
 
+	S32 total_width = 0, total_height = 0;
+	S32 max_total_width = 0, max_total_height = 0;
+	S32 max_width = getRect().getWidth(), max_height = getRect().getHeight();
 	BOOST_FOREACH(LLToolBarButton* button, mButtons)
 	{
-		total_width += button->getRect().getWidth();
-		total_height += button->getRect().getHeight();
+		S32 button_width = button->getRect().getWidth();
+		S32 button_height = button->getRect().getHeight();
+
+		if (getOrientation(mSideType) == LLLayoutStack::HORIZONTAL
+			&& total_width + button_height > getRect().getWidth())
+		{
+			addRow();
+			total_width = 0;
+		}
+		addButton(button);
+
+		total_width += button_width;
+		total_height += button_height;
+		max_total_width = llmax(max_total_width, total_width);
+		max_total_height = llmax(max_total_height, total_height);
 		max_width = llmax(button->getRect().getWidth(), max_width);
 		max_height = llmax(button->getRect().getHeight(), max_height);
 	}
 
-	if (LLToolBarEnums::getOrientation(mSideType) == LLLayoutStack::HORIZONTAL)
+	if (getOrientation(mSideType) == LLLayoutStack::HORIZONTAL)
 	{
-		mStack->reshape(total_width, mStack->getParent()->getRect().getHeight());
+		BOOST_FOREACH(LLLayoutStack* stack, mStacks)
+		{
+			stack->reshape(max_total_width, stack->getParent()->getRect().getHeight());
+			stack->updateLayout();
+		}
 	}
 	else
 	{
-		mStack->reshape(mStack->getParent()->getRect().getWidth(), total_height);
-		reshape(max_width, getRect().getHeight());
+		BOOST_FOREACH(LLLayoutStack* stack, mStacks)
+		{
+			stack->reshape(stack->getParent()->getRect().getWidth(), max_total_height);
+			stack->updateLayout();
+		}
+
+		reshape(max_total_width, getRect().getHeight());
 	}
 }
 
 
 void LLToolBar::draw()
 {
-	//gl_rect_2d(getLocalRect(), LLColor4::blue, TRUE);
+	updateLayout();
+
+	{	// draw background
+		LLRect bg_rect;
+		localRectToOtherView(mCenterPanel->getRect(),&bg_rect, this);
+		mBackgroundImage->draw(bg_rect);		 
+	}
 	LLUICtrl::draw();
 }
 
+void LLToolBar::addRow()
+{
+	LLLayoutStack::ELayoutOrientation orientation = getOrientation(mSideType);
+
+	LLLayoutStack::Params stack_p;
+	stack_p.rect = getLocalRect();
+	stack_p.name = llformat("button_stack_%d", mStacks.size());
+	stack_p.orientation = orientation;
+	stack_p.follows.flags = (orientation == LLLayoutStack::HORIZONTAL)
+		? (FOLLOWS_TOP|FOLLOWS_BOTTOM)  // horizontal
+		: (FOLLOWS_LEFT|FOLLOWS_RIGHT); // vertical
+
+	mStacks.push_back(LLUICtrlFactory::create<LLLayoutStack>(stack_p));
+	mCenterPanel->addChild(mStacks.back());
+}
+
+void LLToolBar::reshape(S32 width, S32 height, BOOL called_from_parent)
+{
+	LLUICtrl::reshape(width, height, called_from_parent);
+	mNeedsLayout = true;
+}
+
 namespace LLInitParam
 {
-	void TypeValues<LLToolBarEnums::ButtonType>::declareValues()
+	void TypeValues<ButtonType>::declareValues()
 	{
-		declare("icons_only",		LLToolBarEnums::BTNTYPE_ICONS_ONLY);
-		declare("icons_with_text",	LLToolBarEnums::BTNTYPE_ICONS_WITH_TEXT);
+		declare("icons_only",		BTNTYPE_ICONS_ONLY);
+		declare("icons_with_text",	BTNTYPE_ICONS_WITH_TEXT);
 	}
 
-	void TypeValues<LLToolBarEnums::SideType>::declareValues()
+	void TypeValues<SideType>::declareValues()
 	{
-		declare("none",		LLToolBarEnums::SIDE_NONE);
-		declare("bottom",	LLToolBarEnums::SIDE_BOTTOM);
-		declare("left",		LLToolBarEnums::SIDE_LEFT);
-		declare("right",	LLToolBarEnums::SIDE_RIGHT);
-		declare("top",		LLToolBarEnums::SIDE_TOP);
+		declare("none",		SIDE_NONE);
+		declare("bottom",	SIDE_BOTTOM);
+		declare("left",		SIDE_LEFT);
+		declare("right",	SIDE_RIGHT);
+		declare("top",		SIDE_TOP);
 	}
 }
diff --git a/indra/llui/lltoolbar.h b/indra/llui/lltoolbar.h
index 60a848a6e3..3a593e42d9 100644
--- a/indra/llui/lltoolbar.h
+++ b/indra/llui/lltoolbar.h
@@ -87,14 +87,25 @@ public:
 	struct Params : public LLInitParam::Block<Params, LLUICtrl::Params>
 	{
 		Mandatory<LLToolBarEnums::ButtonType>	button_display_mode;
-		Multiple<LLToolBarButton::Params>		buttons;
 		Mandatory<LLToolBarEnums::SideType>		side;
 
+		Optional<LLToolBarButton::Params>		button_icon,
+												button_icon_and_text;
+
+		Optional<bool>							wrap;
+		Optional<S32>							min_width,
+												max_width;
+		// get rid of this
+		Multiple<LLToolBarButton::Params>		buttons;
+
+		Optional<LLUIImage*>					background_image;
+
 		Params();
 	};
 
 	// virtuals
 	void draw();
+	void reshape(S32 width, S32 height, BOOL called_from_parent = TRUE);
 
 protected:
 	friend class LLUICtrlFactory;
@@ -105,10 +116,22 @@ protected:
 	void updateLayout();
 
 private:
+	void addRow();
+
 	std::list<LLToolBarButton*>		mButtons;
 	LLToolBarEnums::ButtonType		mButtonType;
+	LLLayoutStack*					mCenteringStack;
+	LLLayoutStack*					mWrapStack;
+	LLLayoutPanel*					mCenterPanel;
 	LLToolBarEnums::SideType		mSideType;
-	LLLayoutStack*					mStack;
+
+	std::vector<LLLayoutStack*>		mStacks;
+	bool							mWrap;
+	bool							mNeedsLayout;
+	S32								mMinWidth,
+									mMaxWidth;
+
+	LLUIImagePtr					mBackgroundImage;
 };