/*****************************************************************************
* ctrl_resize.cpp
*****************************************************************************
* Copyright (C) 2003 the VideoLAN team
*
* 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 "ctrl_resize.hpp"
#include "../events/evt_generic.hpp"
#include "../events/evt_mouse.hpp"
#include "../events/evt_motion.hpp"
#include "../src/generic_layout.hpp"
#include "../src/os_factory.hpp"
#include "../utils/position.hpp"
#include "../commands/async_queue.hpp"
#include "../commands/cmd_resize.hpp"
CtrlResize::CtrlResize( intf_thread_t *pIntf, WindowManager &rWindowManager,
CtrlFlat &rCtrl, GenericLayout &rLayout,
const UString &rHelp, VarBool *pVisible,
WindowManager::Direction_t direction ):
CtrlFlat( pIntf, rHelp, pVisible ), m_fsm( pIntf ),
m_rWindowManager( rWindowManager ), m_rCtrl( rCtrl ),
m_rLayout( rLayout ), m_direction( direction ), m_cmdOutStill( this ),
m_cmdStillOut( this ),
m_cmdStillStill( this ),
m_cmdStillResize( this ),
m_cmdResizeStill( this ),
m_cmdResizeResize( this )
{
m_pEvt = NULL;
m_xPos = 0;
m_yPos = 0;
// States
m_fsm.addState( "out" );
m_fsm.addState( "still" );
m_fsm.addState( "resize" );
// Transitions
m_fsm.addTransition( "out", "enter", "still", &m_cmdOutStill );
m_fsm.addTransition( "still", "leave", "out", &m_cmdStillOut );
m_fsm.addTransition( "still", "motion", "still", &m_cmdStillStill );
m_fsm.addTransition( "resize", "mouse:left:up:none", "still",
&m_cmdResizeStill );
m_fsm.addTransition( "still", "mouse:left:down:none", "resize",
&m_cmdStillResize );
m_fsm.addTransition( "resize", "motion", "resize", &m_cmdResizeResize );
m_fsm.setState( "still" );
}
bool CtrlResize::mouseOver( int x, int y ) const
{
return m_rCtrl.mouseOver( x, y );
}
void CtrlResize::draw( OSGraphics &rImage, int xDest, int yDest, int w, int h )
{
m_rCtrl.draw( rImage, xDest, yDest, w, h );
}
void CtrlResize::setLayout( GenericLayout *pLayout, const Position &rPosition )
{
CtrlGeneric::setLayout( pLayout, rPosition );
// Set the layout of the decorated control as well
m_rCtrl.setLayout( pLayout, rPosition );
}
void CtrlResize::unsetLayout()
{
m_rCtrl.unsetLayout();
CtrlGeneric::unsetLayout();
}
const Position *CtrlResize::getPosition() const
{
return m_rCtrl.getPosition();
}
void CtrlResize::onResize()
{
m_rCtrl.onResize();
}
void CtrlResize::handleEvent( EvtGeneric &rEvent )
{
m_pEvt = &rEvent;
m_fsm.handleTransition( rEvent.getAsString() );
// Transmit the event to the decorated control
// XXX: Is it really a good idea?
m_rCtrl.handleEvent( rEvent );
}
void CtrlResize::changeCursor( WindowManager::Direction_t direction ) const
{
OSFactory::CursorType_t cursor;
switch( direction )
{
default:
case WindowManager::kNone: cursor = OSFactory::kDefaultArrow; break;
case WindowManager::kResizeSE: cursor = OSFactory::kResizeNWSE; break;
case WindowManager::kResizeS: cursor = OSFactory::kResizeNS; break;
case WindowManager::kResizeE: cursor = OSFactory::kResizeWE; break;
}
OSFactory::instance( getIntf() )->changeCursor( cursor );
}
void CtrlResize::CmdOutStill::execute()
{
m_pParent->changeCursor( m_pParent->m_direction );
}
void CtrlResize::CmdStillOut::execute()
{
m_pParent->changeCursor( WindowManager::kNone );
}
void CtrlResize::CmdStillStill::execute()
{
m_pParent->changeCursor( m_pParent->m_direction );
}
void CtrlResize::CmdStillResize::execute()
{
EvtMouse *pEvtMouse = static_cast<EvtMouse*>(m_pParent->m_pEvt);
// Set the cursor
m_pParent->changeCursor( m_pParent->m_direction );
m_pParent->m_xPos = pEvtMouse->getXPos();
m_pParent->m_yPos = pEvtMouse->getYPos();
m_pParent->captureMouse();
m_pParent->m_width = m_pParent->m_rLayout.getWidth();
m_pParent->m_height = m_pParent->m_rLayout.getHeight();
m_pParent->m_rWindowManager.startResize( m_pParent->m_rLayout,
m_pParent->m_direction);
}
void CtrlResize::CmdResizeStill::execute()
{
// Set the cursor
m_pParent->changeCursor( WindowManager::kNone );
m_pParent->releaseMouse();
m_pParent->m_rWindowManager.stopResize();
}
void CtrlResize::CmdResizeResize::execute()
{
EvtMotion *pEvtMotion = static_cast<EvtMotion*>(m_pParent->m_pEvt);
m_pParent->changeCursor( m_pParent->m_direction );
int newWidth = m_pParent->m_width;
newWidth += pEvtMotion->getXPos() - m_pParent->m_xPos;
int newHeight = m_pParent->m_height;
newHeight += pEvtMotion->getYPos() - m_pParent->m_yPos;
// Create a resize command, instead of calling the window manager directly.
// Thanks to this trick, the duplicate resizing commands will be trashed
// in the asynchronous queue, thus making resizing faster
CmdGeneric *pCmd = new CmdResize( m_pParent->getIntf(),
m_pParent->m_rWindowManager,
m_pParent->m_rLayout,
newWidth, newHeight );
// Push the command in the asynchronous command queue
AsyncQueue::instance( getIntf() )->push( CmdGenericPtr( pCmd ) );
}
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-11-04)
¤
*© Formatika GbR, Deutschland
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