1 files changed, 342 insertions, 0 deletions
diff --git a/indra/llui/lldockcontrol.cpp b/indra/llui/lldockcontrol.cpp
new file mode 100644
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+++ b/indra/llui/lldockcontrol.cpp
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+/** 
+ * @file lldockcontrol.cpp
+ * @brief Creates a panel of a specific kind for a toast
+ *
+ * $LicenseInfo:firstyear=2000&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "lldockcontrol.h"
+#include "lldockablefloater.h"
+
+LLDockControl::LLDockControl(LLView* dockWidget, LLFloater* dockableFloater,
+		const LLUIImagePtr& dockTongue, DocAt dockAt, get_allowed_rect_callback_t get_allowed_rect_callback) :
+		mDockWidget(dockWidget),
+		mDockableFloater(dockableFloater),
+		mDockTongue(dockTongue),
+		mDockTongueX(0),
+		mDockTongueY(0)
+{
+	mDockAt = dockAt;
+
+	if (dockableFloater->isDocked())
+	{
+		on();
+	}
+	else
+	{
+		off();
+	}
+
+	if (!(get_allowed_rect_callback))
+	{
+		mGetAllowedRectCallback = boost::bind(&LLDockControl::getAllowedRect, this, _1);
+	}
+	else
+	{
+		mGetAllowedRectCallback = get_allowed_rect_callback;
+	}
+
+	if (dockWidget != NULL) 
+	{
+		repositionDockable();
+	}
+
+	if (mDockWidget != NULL)
+	{
+		mDockWidgetVisible = isDockVisible();
+	}
+	else
+	{
+		mDockWidgetVisible = false;
+	}
+}
+
+LLDockControl::~LLDockControl()
+{
+}
+
+void LLDockControl::setDock(LLView* dockWidget)
+{
+	mDockWidget = dockWidget;
+	if (mDockWidget != NULL)
+	{
+		repositionDockable();
+		mDockWidgetVisible = isDockVisible();
+	}
+	else
+	{
+		mDockWidgetVisible = false;
+	}
+}
+
+void LLDockControl::getAllowedRect(LLRect& rect)
+{
+	rect = mDockableFloater->getRootView()->getRect();
+}
+
+void LLDockControl::repositionDockable()
+{
+	LLRect dockRect = mDockWidget->calcScreenRect();
+	LLRect rootRect;
+	mGetAllowedRectCallback(rootRect);
+
+	// recalculate dockable position if dock position changed, dock visibility changed,
+	// root view rect changed or recalculation is forced
+	if (mPrevDockRect != dockRect  || mDockWidgetVisible != isDockVisible()
+			|| mRootRect != rootRect || mRecalculateDocablePosition)
+	{
+		// undock dockable and off() if dock not visible
+		if (!isDockVisible())
+		{
+			mDockableFloater->setDocked(false);
+			// force off() since dockable may not have dockControll at this time
+			off();
+			LLDockableFloater* dockable_floater =
+					dynamic_cast<LLDockableFloater*> (mDockableFloater);
+			if(dockable_floater != NULL)
+			{
+				dockable_floater->onDockHidden();
+			}
+		}
+		else
+		{
+			if(mEnabled)
+			{
+				moveDockable();
+			}
+			LLDockableFloater* dockable_floater =
+					dynamic_cast<LLDockableFloater*> (mDockableFloater);
+			if(dockable_floater != NULL)
+			{
+				dockable_floater->onDockShown();
+			}
+		}
+
+		mPrevDockRect = dockRect;
+		mRootRect = rootRect;
+		mRecalculateDocablePosition = false;
+		mDockWidgetVisible = isDockVisible();
+	}
+}
+
+bool LLDockControl::isDockVisible()
+{
+	bool res = true;
+
+	if (mDockWidget != NULL)
+	{
+		//we should check all hierarchy
+		res = mDockWidget->isInVisibleChain();
+		if (res)
+		{
+			LLRect dockRect = mDockWidget->calcScreenRect();
+
+			switch (mDockAt)
+			{
+			case LEFT: // to keep compiler happy
+				break;
+			case BOTTOM:
+			case TOP:
+			{
+				// check is dock inside parent rect
+				LLRect dockParentRect =
+						mDockWidget->getParent()->calcScreenRect();
+				if (dockRect.mRight <= dockParentRect.mLeft
+						|| dockRect.mLeft >= dockParentRect.mRight)
+				{
+					res = false;
+				}
+				break;
+			}
+			default:
+				break;
+			}
+		}
+	}
+
+	return res;
+}
+
+void LLDockControl::moveDockable()
+{
+	// calculate new dockable position
+	LLRect dockRect = mDockWidget->calcScreenRect();
+	LLRect rootRect;
+	mGetAllowedRectCallback(rootRect);
+
+	bool use_tongue = false;
+	LLDockableFloater* dockable_floater =
+			dynamic_cast<LLDockableFloater*> (mDockableFloater);
+	if (dockable_floater != NULL)
+	{
+		use_tongue = dockable_floater->getUseTongue();
+	}
+
+	LLRect dockableRect = mDockableFloater->calcScreenRect();
+	S32 x = 0;
+	S32 y = 0;
+	LLRect dockParentRect;
+	switch (mDockAt)
+	{
+	case LEFT:
+		x = dockRect.mLeft;
+		y = dockRect.mTop + mDockTongue->getHeight() + dockableRect.getHeight();
+		// check is dockable inside root view rect
+		if (x < rootRect.mLeft)
+		{
+			x = rootRect.mLeft;
+		}
+		if (x + dockableRect.getWidth() > rootRect.mRight)
+		{
+			x = rootRect.mRight - dockableRect.getWidth();
+		}
+		
+		mDockTongueX = x + dockableRect.getWidth()/2 - mDockTongue->getWidth() / 2;
+		
+		mDockTongueY = dockRect.mTop;
+		break;
+
+	case TOP:
+		x = dockRect.getCenterX() - dockableRect.getWidth() / 2;
+		y = dockRect.mTop + dockableRect.getHeight();
+		// unique docking used with dock tongue, so add tongue height o the Y coordinate
+		if (use_tongue)
+		{
+			y += mDockTongue->getHeight();
+		}
+
+		// check is dockable inside root view rect
+		if (x < rootRect.mLeft)
+		{
+			x = rootRect.mLeft;
+		}
+		if (x + dockableRect.getWidth() > rootRect.mRight)
+		{
+			x = rootRect.mRight - dockableRect.getWidth();
+		}
+
+
+		// calculate dock tongue position
+		dockParentRect = mDockWidget->getParent()->calcScreenRect();
+		if (dockRect.getCenterX() < dockParentRect.mLeft)
+		{
+			mDockTongueX = dockParentRect.mLeft - mDockTongue->getWidth() / 2;
+		}
+		else if (dockRect.getCenterX() > dockParentRect.mRight)
+		{
+			mDockTongueX = dockParentRect.mRight - mDockTongue->getWidth() / 2;;
+		}
+		else
+		{
+			mDockTongueX = dockRect.getCenterX() - mDockTongue->getWidth() / 2;
+		}
+		mDockTongueY = dockRect.mTop;
+
+		break;
+	case BOTTOM:
+		x = dockRect.getCenterX() - dockableRect.getWidth() / 2;
+		y = dockRect.mBottom;
+		// unique docking used with dock tongue, so add tongue height o the Y coordinate
+		if (use_tongue)
+		{
+			y -= mDockTongue->getHeight();
+		}
+
+		// check is dockable inside root view rect
+		if (x < rootRect.mLeft)
+		{
+			x = rootRect.mLeft;
+		}
+		if (x + dockableRect.getWidth() > rootRect.mRight)
+		{
+			x = rootRect.mRight - dockableRect.getWidth();
+		}
+
+		// calculate dock tongue position
+		dockParentRect = mDockWidget->getParent()->calcScreenRect();
+		if (dockRect.getCenterX() < dockParentRect.mLeft)
+		{
+			mDockTongueX = dockParentRect.mLeft - mDockTongue->getWidth() / 2;
+		}
+		else if (dockRect.getCenterX() > dockParentRect.mRight)
+		{
+			mDockTongueX = dockParentRect.mRight - mDockTongue->getWidth() / 2;;
+		}
+		else
+		{
+			mDockTongueX = dockRect.getCenterX() - mDockTongue->getWidth() / 2;
+		}
+		mDockTongueY = dockRect.mBottom - mDockTongue->getHeight();
+
+		break;
+	}
+
+	// move dockable
+	dockableRect.setLeftTopAndSize(x, y, dockableRect.getWidth(),
+			dockableRect.getHeight());
+	LLRect localDocableParentRect;
+	mDockableFloater->getParent()->screenRectToLocal(dockableRect,
+			&localDocableParentRect);
+	mDockableFloater->setRect(localDocableParentRect);
+
+	mDockableFloater->screenPointToLocal(mDockTongueX, mDockTongueY,
+			&mDockTongueX, &mDockTongueY);
+
+}
+
+void LLDockControl::on()
+{
+	 if (isDockVisible())
+	{
+		mEnabled = true;
+		mRecalculateDocablePosition = true;
+	}
+}
+
+void LLDockControl::off()
+{
+	mEnabled = false;
+}
+
+void LLDockControl::forceRecalculatePosition()
+{
+	mRecalculateDocablePosition = true;
+}
+
+void LLDockControl::drawToungue()
+{
+	bool use_tongue = false;
+	LLDockableFloater* dockable_floater =
+			dynamic_cast<LLDockableFloater*> (mDockableFloater);
+	if (dockable_floater != NULL)
+	{
+		use_tongue = dockable_floater->getUseTongue();
+	}
+
+	if (mEnabled && use_tongue)
+	{
+		mDockTongue->draw(mDockTongueX, mDockTongueY);
+	}
+}
+