lldockcontrol.cpp
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上传日期:2021-03-01
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- /**
- * @file lldockcontrol.cpp
- * @brief Creates a panel of a specific kind for a toast
- *
- * $LicenseInfo:firstyear=2000&license=viewergpl$
- *
- * Copyright (c) 2000-2010, 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.
- * $/LicenseInfo$
- */
- #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);
- }
- }