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koffice/chalk/plugins/tools/defaulttools/kis_tool_move.cc

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/*
* Copyright (c) 1999 Matthias Elter <me@kde.org>
* 1999 Michael Koch <koch@kde.org>
* 2002 Patrick Julien <freak@codepimps.org>
* 2004 Boudewijn Rempt <boud@valdyas.org>
*
* 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 <stdlib.h>
#include <tqpoint.h>
#include <kaction.h>
#include <klocale.h>
#include <tqcolor.h>
#include "kis_canvas_subject.h"
#include "kis_cursor.h"
#include "kis_image.h"
#include "kis_paint_device.h"
#include "kis_tool_move.h"
#include "kis_tool_move.moc"
#include "kis_button_press_event.h"
#include "kis_button_release_event.h"
#include "kis_move_event.h"
#include "kis_selection.h"
#include "kis_selection_manager.h"
#include "kis_layer.h"
KisToolMove::KisToolMove()
: super(i18n("Move Tool"))
, m_subject( 0 )
, m_keyEvent( 0 )
{
setName("tool_move");
setCursor(KisCursor::moveCursor());
m_repeatTimer = new TQTimer(this);
connect( m_repeatTimer, TQT_SIGNAL( timeout() ), this, TQT_SLOT( slotMove() ) );
}
KisToolMove::~KisToolMove()
{
}
void KisToolMove::update(KisCanvasSubject *subject)
{
m_subject = subject;
m_strategy.reset(subject);
super::update(subject);
}
void KisToolMove::buttonPress(KisButtonPressEvent *e)
{
if (m_subject && e->button() == Qt::LeftButton) {
TQPoint pos = e->pos().floorTQPoint();
KisImageSP img = m_subject->currentImg();
KisLayerSP dev;
if (!img || !(dev = img->activeLayer()))
return;
m_strategy.startDrag(pos);
}
}
void KisToolMove::move(KisMoveEvent *e)
{
if (m_subject && e->state() == Qt::LeftButton) {
TQPoint pos = e->pos().floorTQPoint();
if((e->state() & TQt::AltButton) || (e->state() & TQt::ControlButton)) {
if(fabs(pos.x() - m_dragStart.x()) > fabs(pos.y() - m_dragStart.y()))
pos.setY(m_dragStart.y());
else
pos.setX(m_dragStart.x());
}
m_strategy.drag(pos);
}
}
void KisToolMove::buttonRelease(KisButtonReleaseEvent *e)
{
if (m_subject && e->button() == Qt::LeftButton) {
m_strategy.endDrag(e->pos().floorTQPoint());
}
}
void KisToolMove::setup(KActionCollection *collection)
{
m_action = static_cast<KRadioAction *>(collection->action(name()));
if (m_action == 0) {
m_action = new KRadioAction(i18n("&Move"),
"tool_move",
TQt::SHIFT+TQt::Key_V,
this,
TQT_SLOT(activate()),
collection,
name());
m_action->setToolTip(i18n("Move"));
m_action->setExclusiveGroup("tools");
m_ownAction = true;
}
}
void KisToolMove::keyPress( TQKeyEvent *e )
{
m_keyEvent = e;
if (m_subject) {
KisImageSP img = m_subject->currentImg();
KisLayerSP dev;
if (!img || !(dev = img->activeLayer()))
return;
m_dragStart = TQPoint( 0, 0 );
m_strategy.startDrag( m_dragStart );
m_steps = 1;
m_repeatTimer->start(200);
}
}
void KisToolMove::keyRelease(TQKeyEvent *)
{
m_repeatTimer->stop();
if ( m_subject && m_keyEvent) {
if ( m_keyEvent->key() == TQt::Key_Left ) {
m_strategy.endDrag(TQPoint( -m_steps, 0 ));
}
else if ( m_keyEvent->key() == TQt::Key_Right ) {
m_strategy.endDrag(TQPoint(m_steps, 0) );
}
else if ( m_keyEvent->key() == TQt::Key_Up ) {
m_strategy.endDrag(TQPoint(0, -m_steps) );
}
else if ( m_keyEvent->key() == TQt::Key_Down ) {
m_strategy.endDrag(TQPoint(0, m_steps) );
}
}
m_steps = 0;
m_keyEvent = 0;
}
void KisToolMove::slotMove()
{
if (m_subject && m_keyEvent) {
if ( m_keyEvent->key() == TQt::Key_Left ) {
m_strategy.drag(TQPoint(-m_steps, 0) );
}
else if ( m_keyEvent->key() == TQt::Key_Right ) {
m_strategy.drag(TQPoint(m_steps, 0) );
}
else if ( m_keyEvent->key() == TQt::Key_Up ) {
m_strategy.drag(TQPoint(0, -m_steps) );
}
else if ( m_keyEvent->key() == TQt::Key_Down ) {
m_strategy.drag(TQPoint(0, m_steps) );
}
++m_steps;
}
}