/***************************************************************************
* Copyright (C) 2006 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* 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 02111-1307, USA. *
***************************************************************************/
#include <QAction>
#include "dock.h"
Dock *Dock::pointer = 0;
Dock *Dock::getPointer()
{
if ( !pointer )
pointer = new Dock();
return pointer;
}
Dock::Dock ( QObject *parent )
: QObject ( parent )
{
pointer = this;
m_mainWidget = 0;
}
Dock::~Dock()
{}
void Dock::setMainWidget ( QWidget *widget )
{
m_mainWidget = widget;
m_widgetList.prepend ( widget );
m_dockedList.prepend ( FALSE );
}
QPoint Dock::snap ( QPoint npos, QWidget* mv, QWidget* st )
{
int nx = npos.x() - st->x();
int ny = abs ( npos.y() - st->y() + mv->height() );
if ( abs ( nx ) < 15 && ny < 15 ) //above
npos.rx() = st->x();
if ( ny < 15 && nx > -mv->width() && nx < st->width() )
npos.ry() = st->y() - mv->height();
nx = abs ( npos.x() + mv->width() - st->x() - st->width() );
if ( nx < 15 && ny < 15 )
npos.rx() = st->x() + st->width() - mv->width();
/***********/
nx = npos.x() - st->x();
ny = abs ( npos.y() - st->y() - st->height() );
if ( abs ( nx ) < 15 && ny < 15 ) //near
npos.rx() = st->x();
if ( ny < 15 && nx > -mv->width() && nx < st->width() )
npos.ry() = st->y() + st->height();
nx = abs ( npos.x() + mv->width() - st->x() - st->width() );
if ( nx < 15 && ny < 15 )
npos.rx() = st->x() + st->width() - mv->width();
/**************/
nx = abs ( npos.x() - st->x() + mv->width() );
ny = npos.y() - st->y();
if ( nx < 15 && abs ( ny ) < 15 ) //left
npos.ry() = st->y();
if ( nx < 15 && ny > -mv->height() && ny < st->height() )
npos.rx() = st->x() - mv->width();
ny = abs ( npos.y() + mv->height() - st->y() - st->height() );
if ( nx < 15 && ny < 15 )
npos.ry() = st->y() + st->height() - mv->height();
/*****************/
nx = abs ( npos.x() - st->x() - st->width() );
ny = npos.y() - st->y();
if ( nx < 15 && abs ( ny ) < 15 ) //right
npos.ry() = st->y();
if ( nx < 15 && ny > -mv->height() && ny < st->height() )
npos.rx() = st->x() + st->width();
ny = abs ( npos.y() + mv->height() - st->y() - st->height() );
if ( nx < 15 && ny < 15 )
npos.ry() = st->y() + st->height() - mv->height();
return ( npos );
}
void Dock::addWidget ( QWidget *widget )
{
m_widgetList.append ( widget );
m_dockedList.append ( FALSE );
widget->addActions(m_actions);
}
void Dock::move ( QWidget* mv, QPoint npos )
{
if ( mv == m_mainWidget )
{
for ( int i = 1; i<m_widgetList.size(); ++i )
{
if ( !m_dockedList.at ( i ) )
{
if ( m_widgetList.at ( i )->isVisible() )
npos = snap ( npos, mv, m_widgetList.at ( i ) );
}
else
{
QPoint pos = QPoint ( npos.x() + x_list.at ( i ),
npos.y() + y_list.at ( i ) );
for ( int j = 1; j<m_widgetList.size(); ++j )
{
if ( !m_dockedList.at ( j ) && m_widgetList.at ( j )->isVisible() )
{
pos = snap ( pos, m_widgetList.at ( i ), m_widgetList.at ( j ) );
npos = QPoint ( pos.x() - x_list.at ( i ),
pos.y() - y_list.at ( i ) );
}
}
}
}
mv->move ( npos );
for ( int i = 1; i<m_widgetList.size(); ++i )
{
if ( m_dockedList.at ( i ) )
m_widgetList.at ( i )->move ( npos.x() + x_list.at ( i ),
npos.y() + y_list.at ( i ) );
}
}
else
{
for ( int i = 0; i<m_widgetList.size(); ++i )
{
m_dockedList[i] = FALSE;
if ( mv!=m_widgetList.at ( i ) && !m_dockedList.at ( i ) && m_widgetList.at ( i )->isVisible() )
{
npos = snap ( npos, mv, m_widgetList.at ( i ) );
}
}
mv->move ( npos );
}
}
void Dock::calculateDistances()
{
x_list.clear();
y_list.clear();
foreach ( QWidget *w, m_widgetList )
{
if ( w!=m_mainWidget )
{
x_list.append ( - m_mainWidget->x() + w->x() );
y_list.append ( - m_mainWidget->y() + w->y() );
}
else
{
x_list.prepend ( 0 );
y_list.prepend ( 0 );
}
}
}
void Dock::updateDock()
{
QWidget *mv = m_widgetList.at ( 0 );
for ( int j = 1; j<m_widgetList.size(); ++j )
{
QWidget *st = m_widgetList.at ( j );
m_dockedList[j] = isDocked ( mv, st );
}
for ( int j = 1; j<m_widgetList.size(); ++j )
{
if ( m_dockedList[j] )
for ( int i = 1; i<m_widgetList.size(); ++i )
{
if ( !m_dockedList[i] )
{
mv = m_widgetList.at ( j );
QWidget *st = m_widgetList.at ( i );
m_dockedList[i] = isDocked ( mv, st );
}
}
}
}
bool Dock::isDocked ( QWidget* mv, QWidget* st )
{
int nx = mv->x() - st->x();
int ny = abs ( mv->y() - st->y() + mv->height() );
if ( ny < 2 && nx > -mv->width() && nx < st->width() ) //above
return TRUE;
/***********/
nx = mv->x() - st->x();
ny = abs ( mv->y() - st->y() - st->height() );
if ( ny < 2 && nx > -mv->width() && nx < st->width() ) //near
return TRUE;
/**************/
nx = abs ( mv->x() - st->x() + mv->width() );
ny = mv->y() - st->y();
if ( nx < 2 && ny > -mv->height() && ny < st->height() ) //left
return TRUE;
/*****************/
nx = abs ( mv->x() - st->x() - st->width() );
ny = mv->y() - st->y();
if ( nx < 2 && ny > -mv->height() && ny < st->height() ) //right
return TRUE;
return FALSE;
}
void Dock::addActions ( QList<QAction *> actions )
{
m_actions << actions;
for ( int i = 0; i<m_widgetList.size(); ++i )
m_widgetList.at ( i )->addActions ( actions );
}
bool Dock::isUnder(QWidget* upper, QWidget* nether)
{
if (!isDocked(upper, nether))
return FALSE;
return abs (upper->y() + upper->height() - nether->y()) < 2;
}
