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/*
* Copyright (c) 2009 Cyrille Berger <cberger@cberger.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* either version 2, or (at your option) any later version of the License.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "WebTool.h"
#include <kundo2command.h>
#include <QPainter>
#include <KoCanvasBase.h>
#include <KoPointerEvent.h>
#include <KoShapeManager.h>
#include <KoSelection.h>
#include "WebShape.h"
#include <klocalizedstring.h>
#include "WebToolWidget.h"
class ChangeScroll : public KUndo2Command
{
public:
ChangeScroll(WebShape* shape, const QPointF& oldScroll) : m_shape(shape), m_newScroll(shape->scroll()), m_oldScroll(oldScroll) {
}
virtual void undo() {
m_shape->setScroll(m_oldScroll);
m_shape->update();
}
virtual void redo() {
m_shape->setScroll(m_newScroll);
m_shape->update();
}
private:
WebShape *m_shape;
QPointF m_newScroll;
QPointF m_oldScroll;
};
class ChangeZoom : public KUndo2Command
{
public:
ChangeZoom(WebShape* shape, qreal oldZoom) : m_shape(shape), m_newZoom(shape->zoom()), m_oldZoom(oldZoom) {
}
virtual void undo() {
m_shape->setZoom(m_oldZoom);
m_shape->update();
}
virtual void redo() {
m_shape->setZoom(m_newZoom);
m_shape->update();
}
private:
WebShape *m_shape;
qreal m_newZoom;
qreal m_oldZoom;
};
WebTool::WebTool(KoCanvasBase *canvas) : KoToolBase(canvas), m_tmpShape(0), m_dragMode(NO_DRAG)
{
}
WebTool::~WebTool()
{
}
void WebTool::activate(ToolActivation /*toolActivation*/, const QSet<KoShape*> &/*shapes*/)
{
Q_ASSERT(m_dragMode == NO_DRAG);
KoSelection *selection = canvas()->shapeManager()->selection();
foreach(KoShape * shape, selection->selectedShapes()) {
m_currentShape = dynamic_cast<WebShape*>(shape);
if(m_currentShape)
break;
}
emit(shapeChanged(m_currentShape));
if(m_currentShape == 0) {
// none found
emit done();
return;
}
}
void WebTool::paint(QPainter &painter, const KoViewConverter &converter)
{
Q_UNUSED(painter);
Q_UNUSED(converter);
}
void WebTool::mousePressEvent(KoPointerEvent *event)
{
WebShape *hit = 0;
QRectF roi(event->point, QSizeF(1, 1));
QList<KoShape*> shapes = canvas()->shapeManager()->shapesAt(roi);
KoSelection *selection = canvas()->shapeManager()->selection();
foreach(KoShape * shape, shapes) {
hit = dynamic_cast<WebShape*>(shape);
if(hit) {
if(hit == m_currentShape) {
m_scrollPoint = event->point;
Q_ASSERT(m_dragMode == NO_DRAG);
if(event->modifiers() & Qt::ShiftModifier) {
m_oldZoom = m_currentShape->zoom();
m_dragMode = ZOOM_DRAG;
} else {
m_oldScroll = m_currentShape->scroll();
m_dragMode = SCROLL_DRAG;
}
} else {
selection->deselectAll();
m_currentShape = hit;
selection->select(m_currentShape);
emit(shapeChanged(m_currentShape));
}
}
}
}
void WebTool::mouseMoveEvent(KoPointerEvent *event)
{
switch(m_dragMode) {
case NO_DRAG:
break;
case SCROLL_DRAG: {
m_currentShape->scrollOf(m_scrollPoint - event->point);
m_scrollPoint = event->point;
m_currentShape->update();
break;
}
case ZOOM_DRAG: {
m_currentShape->zoomOf(1.0 - (event->point.y() - m_scrollPoint.y()) / 100.0);
m_scrollPoint = event->point;
m_currentShape->update();
}
}
}
void WebTool::mouseReleaseEvent(KoPointerEvent *event)
{
Q_UNUSED(event);
switch(m_dragMode) {
case NO_DRAG:
break;
case SCROLL_DRAG:
canvas()->addCommand(new ChangeScroll(m_currentShape, m_oldScroll));
break;
case ZOOM_DRAG:
canvas()->addCommand(new ChangeZoom(m_currentShape, m_oldZoom));
break;
}
m_dragMode = NO_DRAG;
}
QList<QPointer<QWidget> > WebTool::createOptionWidgets()
{
QList<QPointer<QWidget> > widgets;
WebToolWidget* widget = new WebToolWidget(this);
widget->open(m_currentShape);
widgets.append(widget);
return widgets;
}
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