window_manager.cpp
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上传日期:2020-07-06
资源大小:29949k
文件大小:20k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * window_manager.cpp
- *****************************************************************************
- * Copyright (C) 2003 the VideoLAN team
- * $Id: 01385b5682af2d34042e11638a5c429b18bee4c4 $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- * Olivier Teulière <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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #include "window_manager.hpp"
- #include "generic_layout.hpp"
- #include "generic_window.hpp"
- #include "os_factory.hpp"
- #include "anchor.hpp"
- #include "tooltip.hpp"
- #include "var_manager.hpp"
- WindowManager::WindowManager( intf_thread_t *pIntf ):
- SkinObject( pIntf ), m_magnet( 0 ), m_direction( kNone ),
- m_maximizeRect(0, 0, 50, 50),
- m_pTooltip( NULL ), m_pPopup( 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::startResize( GenericLayout &rLayout, Direction_t direction )
- {
- m_direction = direction;
- // Rebuild the set of moving windows.
- // From the resized window, we only take into account the anchors which
- // are mobile with the current type of resizing, and that are hanging a
- // window. The hanged windows will come will all their dependencies.
- m_resizeMovingE.clear();
- m_resizeMovingS.clear();
- m_resizeMovingSE.clear();
- WinSet_t::const_iterator itWin;
- AncList_t::const_iterator itAnc1, itAnc2;
- // Get the anchors of the layout
- const AncList_t &ancList1 = rLayout.getAnchorList();
- // Iterate through all the hanged windows
- for( itWin = m_dependencies[rLayout.getWindow()].begin();
- itWin != m_dependencies[rLayout.getWindow()].end(); itWin++ )
- {
- // Now, check for anchoring between the 2 windows
- const AncList_t &ancList2 =
- (*itWin)->getActiveLayout().getAnchorList();
- for( itAnc1 = ancList1.begin(); itAnc1 != ancList1.end(); itAnc1++ )
- {
- for( itAnc2 = ancList2.begin();
- itAnc2 != ancList2.end(); itAnc2++ )
- {
- if( (*itAnc1)->isHanging( **itAnc2 ) )
- {
- // Add the dependencies of the hanged window to one of the
- // lists of moving windows
- Position::Ref_t aRefPos =
- (*itAnc1)->getPosition().getRefLeftTop();
- if( aRefPos == Position::kRightTop )
- buildDependSet( m_resizeMovingE, *itWin );
- else if( aRefPos == Position::kLeftBottom )
- buildDependSet( m_resizeMovingS, *itWin );
- else if( aRefPos == Position::kRightBottom )
- buildDependSet( m_resizeMovingSE, *itWin );
- break;
- }
- }
- }
- }
- // The checkAnchors() method will need to have m_movingWindows properly set
- // so let's insert in it the contents of the other sets
- m_movingWindows.clear();
- m_movingWindows.insert( rLayout.getWindow() );
- m_movingWindows.insert( m_resizeMovingE.begin(), m_resizeMovingE.end() );
- m_movingWindows.insert( m_resizeMovingS.begin(), m_resizeMovingS.end() );
- m_movingWindows.insert( m_resizeMovingSE.begin(), m_resizeMovingSE.end() );
- }
- void WindowManager::stopResize()
- {
- // Nothing different from stopMove(), luckily
- stopMove();
- }
- void WindowManager::resize( GenericLayout &rLayout,
- int width, int height ) const
- {
- // TODO: handle anchored windows
- // Compute the real resizing offset
- int xOffset = width - rLayout.getWidth();
- int yOffset = height - rLayout.getHeight();
- // Check anchoring; this can change the values of xOffset and yOffset
- checkAnchors( rLayout.getWindow(), xOffset, yOffset );
- if( m_direction == kResizeS )
- xOffset = 0;
- if( m_direction == kResizeE )
- yOffset = 0;
- int newWidth = rLayout.getWidth() + xOffset;
- int newHeight = rLayout.getHeight() + yOffset;
- // Check boundaries
- if( newWidth < rLayout.getMinWidth() )
- {
- newWidth = rLayout.getMinWidth();
- }
- if( newWidth > rLayout.getMaxWidth() )
- {
- newWidth = rLayout.getMaxWidth();
- }
- if( newHeight < rLayout.getMinHeight() )
- {
- newHeight = rLayout.getMinHeight();
- }
- if( newHeight > rLayout.getMaxHeight() )
- {
- newHeight = rLayout.getMaxHeight();
- }
- if( newWidth == rLayout.getWidth() && newHeight == rLayout.getHeight() )
- {
- return;
- }
- // New offset, after the last corrections
- int xNewOffset = newWidth - rLayout.getWidth();
- int yNewOffset = newHeight - rLayout.getHeight();
- // Do the actual resizing
- rLayout.resize( newWidth, newHeight );
- // Move all the anchored windows
- WinSet_t::const_iterator it;
- if( m_direction == kResizeE ||
- m_direction == kResizeSE )
- {
- for( it = m_resizeMovingE.begin(); it != m_resizeMovingE.end(); it++ )
- {
- (*it)->move( (*it)->getLeft() + xNewOffset,
- (*it)->getTop() );
- }
- }
- if( m_direction == kResizeE ||
- m_direction == kResizeSE )
- {
- for( it = m_resizeMovingS.begin(); it != m_resizeMovingS.end(); it++ )
- {
- (*it)->move( (*it)->getLeft(),
- (*it)->getTop( )+ yNewOffset );
- }
- }
- if( m_direction == kResizeE ||
- m_direction == kResizeS ||
- m_direction == kResizeSE )
- {
- for( it = m_resizeMovingSE.begin(); it != m_resizeMovingSE.end(); it++ )
- {
- (*it)->move( (*it)->getLeft() + xNewOffset,
- (*it)->getTop() + yNewOffset );
- }
- }
- }
- void WindowManager::maximize( TopWindow &rWindow )
- {
- // Save the current position/size of the window, to be able to restore it
- m_maximizeRect = SkinsRect( rWindow.getLeft(), rWindow.getTop(),
- rWindow.getLeft() + rWindow.getWidth(),
- rWindow.getTop() + rWindow.getHeight() );
- SkinsRect workArea = OSFactory::instance( getIntf() )->getWorkArea();
- // Move the window
- startMove( rWindow );
- move( rWindow, workArea.getLeft(), workArea.getTop() );
- stopMove();
- // Now resize it
- // FIXME: Ugly const_cast
- GenericLayout &rLayout = (GenericLayout&)rWindow.getActiveLayout();
- startResize( rLayout, kResizeSE );
- resize( rLayout, workArea.getWidth(), workArea.getHeight() );
- stopResize();
- rWindow.m_pVarMaximized->set( true );
- // Make the window unmovable by unregistering it
- // unregisterWindow( rWindow );
- }
- void WindowManager::unmaximize( TopWindow &rWindow )
- {
- // Register the window to allow moving it
- // registerWindow( rWindow );
- // Resize the window
- // FIXME: Ugly const_cast
- GenericLayout &rLayout = (GenericLayout&)rWindow.getActiveLayout();
- startResize( rLayout, kResizeSE );
- resize( rLayout, m_maximizeRect.getWidth(), m_maximizeRect.getHeight() );
- stopResize();
- // Now move it
- startMove( rWindow );
- move( rWindow, m_maximizeRect.getLeft(), m_maximizeRect.getTop() );
- stopMove();
- rWindow.m_pVarMaximized->set( false );
- }
- 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::saveVisibility()
- {
- WinSet_t::const_iterator it;
- m_savedWindows.clear();
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- // Remember the window if it is visible
- if( (*it)->getVisibleVar().get() )
- {
- m_savedWindows.insert( *it );
- }
- }
- }
- void WindowManager::restoreVisibility() const
- {
- // Warning in case we never called saveVisibility()
- if( m_savedWindows.size() == 0 )
- {
- msg_Warn( getIntf(), "restoring visibility for no window" );
- }
- WinSet_t::const_iterator it;
- for( it = m_savedWindows.begin(); it != m_savedWindows.end(); it++)
- {
- (*it)->show();
- }
- }
- 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( bool firstTime ) const
- {
- // Show all the windows
- WinSet_t::const_iterator it;
- for( it = m_allWindows.begin(); it != m_allWindows.end(); it++ )
- {
- // When the theme is opened for the first time,
- // only show the window if set as visible in the XML
- if( (*it)->isVisible() || !firstTime )
- {
- (*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)
- SkinsRect workArea = OSFactory::instance( getIntf() )->getWorkArea();
- // Iterate through the moving windows
- for( itMov = m_movingWindows.begin();
- itMov != m_movingWindows.end(); itMov++ )
- {
- // Skip the invisible windows
- if( ! (*itMov)->getVisibleVar().get() )
- {
- continue;
- }
- 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();
- }
- int right = workArea.getLeft() + workArea.getWidth();
- if( newLeft + (*itMov)->getWidth() > right - m_magnet &&
- newLeft + (*itMov)->getWidth() < right + m_magnet )
- {
- xOffset = right - (*itMov)->getLeft() - (*itMov)->getWidth();
- }
- int bottom = workArea.getTop() + workArea.getHeight();
- if( newTop + (*itMov)->getHeight() > bottom - m_magnet &&
- newTop + (*itMov)->getHeight() < bottom + m_magnet )
- {
- yOffset = bottom - (*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();
- }