window_manager.cpp
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上传日期:2009-03-27
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- /*****************************************************************************
- * window_manager.cpp
- *****************************************************************************
- * Copyright (C) 2003 VideoLAN
- * $Id: window_manager.cpp 8966 2004-10-10 10:08:44Z ipkiss $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- * Olivier Teuli鑢e <ipkiss@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- *****************************************************************************/
- #include "window_manager.hpp"
- #include "generic_layout.hpp"
- #include "generic_window.hpp"
- #include "os_factory.hpp"
- #include "anchor.hpp"
- #include "tooltip.hpp"
- #include "../utils/position.hpp"
- #include "../src/var_manager.hpp"
- WindowManager::WindowManager( intf_thread_t *pIntf ):
- SkinObject( pIntf ), m_magnet( 0 ), m_pTooltip( NULL )
- {
- // Create and register a variable for the "on top" status
- VarManager *pVarManager = VarManager::instance( getIntf() );
- m_cVarOnTop = VariablePtr( new VarBoolImpl( getIntf() ) );
- pVarManager->registerVar( m_cVarOnTop, "vlc.isOnTop" );
- }
- WindowManager::~WindowManager()
- {
- delete m_pTooltip;
- }
- void WindowManager::registerWindow( TopWindow &rWindow )
- {
- // Add the window to the set
- m_allWindows.insert( &rWindow );
- }
- void WindowManager::unregisterWindow( TopWindow &rWindow )
- {
- // Erase every possible reference to the window
- m_allWindows.erase( &rWindow );
- m_movingWindows.erase( &rWindow );
- m_dependencies.erase( &rWindow );
- }
- void WindowManager::startMove( TopWindow &rWindow )
- {
- // Rebuild the set of moving windows
- m_movingWindows.clear();
- buildDependSet( m_movingWindows, &rWindow );
- #ifdef WIN32
- if( config_GetInt( getIntf(), "skins2-transparency" ) )
- {
- // Change the opacity of the moving windows
- WinSet_t::const_iterator it;
- for( it = m_movingWindows.begin(); it != m_movingWindows.end(); it++ )
- {
- (*it)->setOpacity( m_moveAlpha );
- }
- // FIXME: We need to refresh the windows, because if 2 windows overlap
- // and one of them becomes transparent, the other one is not refreshed
- // automatically. I don't know why... -- Ipkiss
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- (*it)->refresh( 0, 0, (*it)->getWidth(), (*it)->getHeight() );
- }
- }
- #endif
- }
- void WindowManager::stopMove()
- {
- WinSet_t::const_iterator itWin1, itWin2;
- AncList_t::const_iterator itAnc1, itAnc2;
- #ifdef WIN32
- if( config_GetInt( getIntf(), "skins2-transparency" ) )
- {
- // Restore the opacity of the moving windows
- WinSet_t::const_iterator it;
- for( it = m_movingWindows.begin(); it != m_movingWindows.end(); it++ )
- {
- (*it)->setOpacity( m_alpha );
- }
- }
- #endif
- // Delete the dependencies
- m_dependencies.clear();
- // Now we rebuild the dependencies.
- // Iterate through all the windows
- for( itWin1 = m_allWindows.begin(); itWin1 != m_allWindows.end(); itWin1++ )
- {
- // Get the anchors of the layout associated to the window
- const AncList_t &ancList1 =
- (*itWin1)->getActiveLayout().getAnchorList();
- // Iterate through all the windows, starting with (*itWin1)
- for( itWin2 = itWin1; itWin2 != m_allWindows.end(); itWin2++ )
- {
- // A window can't anchor itself...
- if( (*itWin2) == (*itWin1) )
- continue;
- // Now, check for anchoring between the 2 windows
- const AncList_t &ancList2 =
- (*itWin2)->getActiveLayout().getAnchorList();
- for( itAnc1 = ancList1.begin(); itAnc1 != ancList1.end(); itAnc1++ )
- {
- for( itAnc2 = ancList2.begin();
- itAnc2 != ancList2.end(); itAnc2++ )
- {
- if( (*itAnc1)->isHanging( **itAnc2 ) )
- {
- // (*itWin1) anchors (*itWin2)
- m_dependencies[*itWin1].insert( *itWin2 );
- }
- else if( (*itAnc2)->isHanging( **itAnc1 ) )
- {
- // (*itWin2) anchors (*itWin1)
- m_dependencies[*itWin2].insert( *itWin1 );
- }
- }
- }
- }
- }
- }
- void WindowManager::move( TopWindow &rWindow, int left, int top ) const
- {
- // Compute the real move offset
- int xOffset = left - rWindow.getLeft();
- int yOffset = top - rWindow.getTop();
- // Check anchoring; this can change the values of xOffset and yOffset
- checkAnchors( &rWindow, xOffset, yOffset );
- // Move all the windows
- WinSet_t::const_iterator it;
- for( it = m_movingWindows.begin(); it != m_movingWindows.end(); it++ )
- {
- (*it)->move( (*it)->getLeft() + xOffset, (*it)->getTop() + yOffset );
- }
- }
- void WindowManager::synchVisibility() const
- {
- WinSet_t::const_iterator it;
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- // Show the window if it has to be visible
- if( (*it)->getVisibleVar().get() )
- {
- (*it)->innerShow();
- }
- }
- }
- void WindowManager::raiseAll() const
- {
- // Raise all the windows
- WinSet_t::const_iterator it;
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- (*it)->raise();
- }
- }
- void WindowManager::showAll() const
- {
- // Show all the windows
- WinSet_t::const_iterator it;
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- (*it)->show();
- (*it)->setOpacity( m_alpha );
- }
- }
- void WindowManager::hideAll() const
- {
- WinSet_t::const_iterator it;
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- (*it)->hide();
- }
- }
- void WindowManager::toggleOnTop()
- {
- // Update the boolean variable
- VarBoolImpl *pVarOnTop = (VarBoolImpl*)m_cVarOnTop.get();
- pVarOnTop->set( !pVarOnTop->get() );
- // Toggle the "on top" status
- WinSet_t::const_iterator it;
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- (*it)->toggleOnTop( pVarOnTop->get() );
- }
- }
- void WindowManager::buildDependSet( WinSet_t &rWinSet,
- TopWindow *pWindow )
- {
- // pWindow is in the set
- rWinSet.insert( pWindow );
- // Iterate through the anchored windows
- const WinSet_t &anchored = m_dependencies[pWindow];
- WinSet_t::const_iterator iter;
- for( iter = anchored.begin(); iter != anchored.end(); iter++ )
- {
- // Check that the window isn't already in the set before adding it
- if( rWinSet.find( *iter ) == rWinSet.end() )
- {
- buildDependSet( rWinSet, *iter );
- }
- }
- }
- void WindowManager::checkAnchors( TopWindow *pWindow,
- int &xOffset, int &yOffset ) const
- {
- WinSet_t::const_iterator itMov, itSta;
- AncList_t::const_iterator itAncMov, itAncSta;
- // Check magnetism with screen edges first (actually it is the work area)
- Rect workArea = OSFactory::instance( getIntf() )->getWorkArea();
- // Iterate through the moving windows
- for( itMov = m_movingWindows.begin();
- itMov != m_movingWindows.end(); itMov++ )
- {
- int newLeft = (*itMov)->getLeft() + xOffset;
- int newTop = (*itMov)->getTop() + yOffset;
- if( newLeft > workArea.getLeft() - m_magnet &&
- newLeft < workArea.getLeft() + m_magnet )
- {
- xOffset = workArea.getLeft() - (*itMov)->getLeft();
- }
- if( newTop > workArea.getTop() - m_magnet &&
- newTop < workArea.getTop() + m_magnet )
- {
- yOffset = workArea.getTop() - (*itMov)->getTop();
- }
- if( newLeft + (*itMov)->getWidth() > workArea.getRight() - m_magnet &&
- newLeft + (*itMov)->getWidth() < workArea.getRight() + m_magnet )
- {
- xOffset = workArea.getRight() - (*itMov)->getLeft()
- - (*itMov)->getWidth();
- }
- if( newTop + (*itMov)->getHeight() > workArea.getBottom() - m_magnet &&
- newTop + (*itMov)->getHeight() < workArea.getBottom() + m_magnet )
- {
- yOffset = workArea.getBottom() - (*itMov)->getTop()
- - (*itMov)->getHeight();
- }
- }
- // Iterate through the moving windows
- for( itMov = m_movingWindows.begin();
- itMov != m_movingWindows.end(); itMov++ )
- {
- // Skip the invisible windows
- if( ! (*itMov)->getVisibleVar().get() )
- {
- continue;
- }
- // Get the anchors in the main layout of this moving window
- const AncList_t &movAnchors =
- (*itMov)->getActiveLayout().getAnchorList();
- // Iterate through the static windows
- for( itSta = m_allWindows.begin();
- itSta != m_allWindows.end(); itSta++ )
- {
- // Skip the moving windows and the invisible ones
- if( m_movingWindows.find( (*itSta) ) != m_movingWindows.end() ||
- ! (*itSta)->getVisibleVar().get() )
- {
- continue;
- }
- // Get the anchors in the main layout of this static window
- const AncList_t &staAnchors =
- (*itSta)->getActiveLayout().getAnchorList();
- // Check if there is an anchoring between one of the movAnchors
- // and one of the staAnchors
- for( itAncMov = movAnchors.begin();
- itAncMov != movAnchors.end(); itAncMov++ )
- {
- for( itAncSta = staAnchors.begin();
- itAncSta != staAnchors.end(); itAncSta++ )
- {
- if( (*itAncSta)->canHang( **itAncMov, xOffset, yOffset ) )
- {
- // We have found an anchoring!
- // There is nothing to do here, since xOffset and
- // yOffset are automatically modified by canHang()
- // Don't check the other anchors, one is enough...
- return;
- }
- else
- {
- // Temporary variables
- int xOffsetTemp = -xOffset;
- int yOffsetTemp = -yOffset;
- if( (*itAncMov)->canHang( **itAncSta, xOffsetTemp,
- yOffsetTemp ) )
- {
- // We have found an anchoring!
- // xOffsetTemp and yOffsetTemp have been updated,
- // we just need to change xOffset and yOffset
- xOffset = -xOffsetTemp;
- yOffset = -yOffsetTemp;
- // Don't check the other anchors, one is enough...
- return;
- }
- }
- }
- }
- }
- }
- }
- void WindowManager::createTooltip( const GenericFont &rTipFont )
- {
- // Create the tooltip window
- if( !m_pTooltip )
- {
- m_pTooltip = new Tooltip( getIntf(), rTipFont, 500 );
- }
- else
- {
- msg_Warn( getIntf(), "Tooltip already created!");
- }
- }
- void WindowManager::showTooltip()
- {
- if( m_pTooltip )
- {
- m_pTooltip->show();
- }
- }
- void WindowManager::hideTooltip()
- {
- if( m_pTooltip )
- {
- m_pTooltip->hide();
- }
- }
- void WindowManager::addLayout( TopWindow &rWindow, GenericLayout &rLayout )
- {
- rWindow.setActiveLayout( &rLayout );
- }
- void WindowManager::setActiveLayout( TopWindow &rWindow,
- GenericLayout &rLayout )
- {
- rWindow.setActiveLayout( &rLayout );
- // Rebuild the dependencies
- stopMove();
- }