1 files changed, 275 insertions, 0 deletions
diff --git a/indra/newview/llsplitbutton.cpp b/indra/newview/llsplitbutton.cpp
new file mode 100644
index 0000000000..ffd9bc7624
--- /dev/null
+++ b/indra/newview/llsplitbutton.cpp
@@ -0,0 +1,275 @@
+/** 
+ * @file llsplitbutton.cpp
+ * @brief LLSplitButton base class
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ * 
+ * Copyright (c) 2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+// A control that consolidates several buttons as options
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llsplitbutton.h"
+
+#include "llinitparam.h"
+#include "llpanel.h"
+#include "llfocusmgr.h"
+#include "llviewerwindow.h"
+#include "llrootview.h"
+
+
+S32 BUTTON_PAD = 2; //pad between buttons on an items panel
+
+
+static LLDefaultChildRegistry::Register<LLSplitButton> split_button("split_button");
+
+void LLSplitButton::ArrowPositionValues::declareValues()
+{
+	declare("left", LEFT);
+	declare("right", RIGHT);
+}
+
+LLSplitButton::ItemParams::ItemParams()
+{
+}
+
+LLSplitButton::Params::Params()
+:	arrow_position("arrow_position", LEFT),
+	items("item"),
+	arrow_button("arrow_button"),
+	items_panel("items_panel")
+{
+}
+
+
+void LLSplitButton::onFocusLost()
+{
+	hideButtons();
+	LLUICtrl::onFocusLost();
+}
+
+void LLSplitButton::setFocus(BOOL b)
+{
+	LLUICtrl::setFocus(b);
+
+	if (b)
+	{
+		if (mItemsPanel && mItemsPanel->getVisible())
+		{
+			mItemsPanel->setFocus(TRUE);
+		}
+	}
+}
+
+void LLSplitButton::setEnabled(BOOL enabled)
+{
+	LLView::setEnabled(enabled);
+	mArrowBtn->setEnabled(enabled);
+}
+
+
+void LLSplitButton::onArrowBtnDown()
+{
+	if (!mItemsPanel->getVisible())
+	{
+		showButtons();
+
+		setFocus(TRUE);
+
+		if (mArrowBtn->hasMouseCapture() || mShownItem->hasMouseCapture())
+		{
+			gFocusMgr.setMouseCapture(this);
+		}
+	}
+	else
+	{
+		hideButtons();
+	}
+}
+
+void LLSplitButton::onHeldDownShownButton()
+{
+	if (!mItemsPanel->getVisible()) onArrowBtnDown();
+}
+
+void LLSplitButton::onItemSelected(LLUICtrl* ctrl)
+{
+	if (!ctrl) return;
+
+	hideButtons();
+
+	// call the callback if it exists
+	if(!mSelectionCallback.empty())
+	{
+		mSelectionCallback(this, ctrl->getName());
+	}
+
+	gFocusMgr.setKeyboardFocus(NULL);
+}
+
+BOOL LLSplitButton::handleMouseUp(S32 x, S32 y, MASK mask)
+{
+	gFocusMgr.setMouseCapture(NULL);
+
+	if (mShownItem->parentPointInView(x, y))
+	{
+		onItemSelected(mShownItem);
+		return TRUE;
+	}
+
+	for (std::list<LLButton*>::const_iterator it = mHidenItems.begin(); it != mHidenItems.end(); ++it)
+	{
+		LLButton* item = *it;
+
+		S32 panel_x = 0;
+		S32 panel_y = 0;
+		localPointToOtherView(x, y, &panel_x, &panel_y, mItemsPanel);
+
+		if (item->parentPointInView(panel_x, panel_y))
+		{
+			onItemSelected(item);
+			return TRUE;
+		}
+	}
+	return TRUE;
+}
+
+void LLSplitButton::showButtons()
+{
+	mItemsPanel->setOrigin(0, getRect().getHeight());
+
+	// register ourselves as a "top" control
+	// effectively putting us into a special draw layer
+	gFocusMgr.setTopCtrl(this);
+
+	mItemsPanel->setFocus(TRUE);
+
+	//push arrow button down and show the item buttons
+	mArrowBtn->setToggleState(TRUE);
+	mItemsPanel->setVisible(TRUE);
+
+	setUseBoundingRect(TRUE);
+}
+
+void LLSplitButton::hideButtons()
+{
+	mItemsPanel->setVisible(FALSE);
+	mArrowBtn->setToggleState(FALSE);
+
+	setUseBoundingRect(FALSE);
+	if(gFocusMgr.getTopCtrl() == this)
+	{
+		gFocusMgr.setTopCtrl(NULL);
+	}
+}
+
+
+// protected/private
+
+LLSplitButton::LLSplitButton(const LLSplitButton::Params& p)
+:	LLUICtrl(p),
+	mArrowBtn(NULL),
+	mShownItem(NULL),
+	mItemsPanel(NULL),
+	mArrowPosition(p.arrow_position)
+{
+	LLRect rc(p.rect);
+
+	LLButton::Params arrow_params = p.arrow_button;
+	S32 arrow_width = p.arrow_button.rect.width;
+
+	//Default arrow rect values for LEFT arrow position
+	S32 arrow_left = 0;
+	S32 arrow_right = arrow_width;
+	S32 btn_left = arrow_width;
+	S32 btn_right = rc.getWidth();
+
+	if (mArrowPosition == RIGHT)
+	{
+		arrow_left = rc.getWidth()- arrow_width;
+		arrow_right = rc.getWidth();
+		btn_left = 0;
+		btn_right = arrow_left;
+	}
+
+	arrow_params.rect(LLRect(arrow_left, rc.getHeight(), arrow_right, 0));
+	arrow_params.label("");
+	arrow_params.mouse_down_callback.function(boost::bind(&LLSplitButton::onArrowBtnDown, this));
+	mArrowBtn = LLUICtrlFactory::create<LLButton>(arrow_params);
+	addChild(mArrowBtn);
+
+	//a panel for hidden item buttons
+	LLPanel::Params panel_params = p.items_panel;
+	mItemsPanel= prepareItemsPanel(panel_params, p.items.numValidElements());
+	addChild(mItemsPanel);
+
+
+	LLInitParam::ParamIterator<ItemParams>::const_iterator it = p.items().begin();
+
+	//processing shown item button
+	mShownItem = prepareItemButton(*it);
+	mShownItem->setHeldDownCallback(boost::bind(&LLSplitButton::onHeldDownShownButton, this));
+	mShownItem->setMouseUpCallback(boost::bind(&LLSplitButton::onItemSelected, this, _1));
+	mShownItem->setRect(LLRect(btn_left, rc.getHeight(), btn_right, 0));
+	addChild(mShownItem);
+
+	//processing hidden item buttons
+	S32 item_top = mItemsPanel->getRect().getHeight();
+	for (++it; it != p.items().end(); ++it)
+	{
+		LLButton* hidden_button = prepareItemButton(*it);
+		hidden_button->setRect(LLRect(btn_left, item_top, btn_right, item_top - rc.getHeight()));
+		hidden_button->setMouseDownCallback(boost::bind(&LLSplitButton::onItemSelected, this, _1));
+		mHidenItems.push_back(hidden_button);
+		mItemsPanel->addChild(hidden_button);
+
+		//calculate next button's top
+		item_top -= (rc.getHeight() + BUTTON_PAD);
+	}
+
+	setTopLostCallback(boost::bind(&LLSplitButton::hideButtons, this));
+}
+
+
+LLButton* LLSplitButton::prepareItemButton(LLButton::Params params)
+{
+	params.label("");
+	params.is_toggle(false);
+	return LLUICtrlFactory::create<LLButton>(params); 
+}
+
+LLPanel* LLSplitButton::prepareItemsPanel(LLPanel::Params params, S32 items_count)
+{
+	S32 num_hiden_btns = items_count - 1;
+	S32 panel_height = num_hiden_btns * (getRect().getHeight() + BUTTON_PAD);
+	params.visible(false);
+	params.rect.width(getRect().getWidth());
+	params.rect.height(panel_height);
+	return LLUICtrlFactory::create<LLPanel>(params);
+}
+