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/*
* Copyright (c) 2004 Adrian Page <adrian@pagenet.plus.com>
*
* 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 <kaction.h>
#include <klocale.h>
#include "kis_canvas_controller.h"
#include "kis_canvas_subject.h"
#include "kis_cursor.h"
#include "kis_tool_pan.h"
#include "kis_button_press_event.h"
#include "kis_button_release_event.h"
#include "kis_move_event.h"
KisToolPan::KisToolPan()
: super(i18n("Pan Tool"))
{
setName("tool_pan");
m_subject = 0;
m_dragging = false;
m_openHandCursor = KisCursor::openHandCursor();
m_closedHandCursor = KisCursor::closedHandCursor();
setCursor(m_openHandCursor);
}
KisToolPan::~KisToolPan()
{
}
void KisToolPan::update(KisCanvasSubject *subject)
{
m_subject = subject;
super::update(m_subject);
}
void KisToolPan::buttonPress(KisButtonPressEvent *e)
{
if (m_subject && !m_dragging && e->button() == Qt::LeftButton) {
KisCanvasController *controller = m_subject->canvasController();
m_origScrollX = controller->horzValue();
m_origScrollY = controller->vertValue();
m_dragPos = controller->windowToView(e->pos());
m_dragging = true;
setCursor(m_closedHandCursor);
}
}
void KisToolPan::move(KisMoveEvent *e)
{
if (m_subject && m_dragging) {
KisCanvasController *controller = m_subject->canvasController();
KisPoint currPos = controller->windowToView(e->pos());
KisPoint delta = currPos - m_dragPos;
controller->scrollTo(m_origScrollX - delta.floorX(), m_origScrollY - delta.floorY());
}
}
void KisToolPan::buttonRelease(KisButtonReleaseEvent *e)
{
if (m_subject && m_dragging && e->button() == Qt::LeftButton) {
setCursor(m_openHandCursor);
m_dragging = false;
}
}
void KisToolPan::setup(KActionCollection *collection)
{
m_action = static_cast<KRadioAction *>(collection->action(name()));
if (m_action == 0) {
m_action = new KRadioAction(i18n("&Pan"), "tool_pan", TQt::SHIFT+TQt::Key_H, this, TQT_SLOT(activate()), collection, name());
m_action->setToolTip(i18n("Pan"));
m_action->setExclusiveGroup("tools");
m_ownAction = true;
}
}
#include "kis_tool_pan.moc"
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