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/* This file is part of the KDE project
* Made by Tomislav Lukman (tomislav.lukman@ck.tel.hr)
* Copyright (C) 2012 Jean-Nicolas Artaud <jeannicolasartaud@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "KoResourcePopupAction.h"
#include "KoResourceServerAdapter.h"
#include "KoResourceItemView.h"
#include "KoResourceModel.h"
#include "KoResourceItemDelegate.h"
#include "KoResource.h"
#include "KoCheckerBoardPainter.h"
#include "KoShapeBackground.h"
#include <KoAbstractGradient.h>
#include <KoPattern.h>
#include <KoGradientBackground.h>
#include <KoPatternBackground.h>
#include <KoImageCollection.h>
#include <QMenu>
#include <QHBoxLayout>
#include <QHeaderView>
#include <QPainter>
#include <QGradient>
#include <QToolButton>
#include <QRect>
#include <QWidgetAction>
class KoResourcePopupAction::Private
{
public:
Private() : resourceList(0), background(0), checkerPainter(4)
{}
QMenu *menu;
KoResourceItemView *resourceList;
QSharedPointer<KoShapeBackground> background;
KoCheckerBoardPainter checkerPainter;
};
KoResourcePopupAction::KoResourcePopupAction(QSharedPointer<KoAbstractResourceServerAdapter>resourceAdapter, QObject *parent)
: QAction(parent)
, d(new Private())
{
Q_ASSERT(resourceAdapter);
d->menu = new QMenu();
QWidget *widget = new QWidget();
QWidgetAction *wdgAction = new QWidgetAction(this);
d->resourceList = new KoResourceItemView(widget);
d->resourceList->setModel(new KoResourceModel(resourceAdapter, widget));
d->resourceList->setItemDelegate(new KoResourceItemDelegate(widget));
KoResourceModel * resourceModel = qobject_cast<KoResourceModel*>(d->resourceList->model());
if (resourceModel) {
resourceModel->setColumnCount(1);
}
KoResource *resource = 0;
if (resourceAdapter->resources().count() > 0) {
resource = resourceAdapter->resources().at(0);
}
KoAbstractGradient *gradient = dynamic_cast<KoAbstractGradient*>(resource);
KoPattern *pattern = dynamic_cast<KoPattern*>(resource);
if (gradient) {
QGradient *qg = gradient->toQGradient();
qg->setCoordinateMode(QGradient::ObjectBoundingMode);
d->background = QSharedPointer<KoShapeBackground>(new KoGradientBackground(qg));
} else if (pattern) {
KoImageCollection *collection = new KoImageCollection();
d->background = QSharedPointer<KoShapeBackground>(new KoPatternBackground(collection));
static_cast<KoPatternBackground*>(d->background.data())->setPattern(pattern->pattern());
}
QHBoxLayout *layout = new QHBoxLayout(widget);
layout->addWidget(d->resourceList);
widget->setLayout(layout);
wdgAction->setDefaultWidget(widget);
d->menu->addAction(wdgAction);
setMenu(d->menu);
new QHBoxLayout(d->menu);
d->menu->layout()->addWidget(widget);
d->menu->layout()->setMargin(0);
connect(d->resourceList, SIGNAL(clicked(QModelIndex)), this, SLOT(indexChanged(QModelIndex)));
updateIcon();
}
KoResourcePopupAction::~KoResourcePopupAction()
{
/* Removing the actions here make them be deleted together with their default widget.
* This happens only if the actions are QWidgetAction, and we know they are since
* the only ones added are in KoResourcePopupAction constructor. */
int i = 0;
while(d->menu->actions().size() > 0) {
d->menu->removeAction(d->menu->actions().at(i));
++i;
}
delete d->menu;
delete d;
}
QSharedPointer<KoShapeBackground> KoResourcePopupAction::currentBackground() const
{
return d->background;
}
void KoResourcePopupAction::setCurrentBackground(QSharedPointer<KoShapeBackground> background)
{
d->background = background;
updateIcon();
}
void KoResourcePopupAction::indexChanged(const QModelIndex &modelIndex)
{
if (! modelIndex.isValid()) {
return;
}
d->menu->hide();
KoResource *resource = static_cast<KoResource*>(modelIndex.internalPointer());
if(resource) {
KoAbstractGradient *gradient = dynamic_cast<KoAbstractGradient*>(resource);
KoPattern *pattern = dynamic_cast<KoPattern*>(resource);
if (gradient) {
QGradient *qg = gradient->toQGradient();
qg->setCoordinateMode(QGradient::ObjectBoundingMode);
d->background = QSharedPointer<KoShapeBackground>(new KoGradientBackground(qg));
} else if (pattern) {
KoImageCollection *collection = new KoImageCollection();
d->background = QSharedPointer<KoShapeBackground>(new KoPatternBackground(collection));
qSharedPointerDynamicCast<KoPatternBackground>(d->background)->setPattern(pattern->pattern());
}
emit resourceSelected(d->background);
updateIcon();
}
}
void KoResourcePopupAction::updateIcon()
{
QSize iconSize;
QToolButton *toolButton = dynamic_cast<QToolButton*>(parentWidget());
if (toolButton) {
iconSize = QSize(toolButton->iconSize());
} else {
iconSize = QSize(16, 16);
}
// This must be a QImage, as drawing to a QPixmap outside the
// UI thread will cause sporadic crashes.
QImage pm = QImage(iconSize, QImage::Format_ARGB32_Premultiplied);
pm.fill(Qt::transparent);
QPainter p(&pm);
QSharedPointer<KoGradientBackground> gradientBackground = qSharedPointerDynamicCast<KoGradientBackground>(d->background);
QSharedPointer<KoPatternBackground> patternBackground = qSharedPointerDynamicCast<KoPatternBackground>(d->background);
if (gradientBackground) {
QRect innerRect(0, 0, iconSize.width(), iconSize.height());
QLinearGradient paintGradient;
paintGradient.setStops(gradientBackground->gradient()->stops());
paintGradient.setStart(innerRect.topLeft());
paintGradient.setFinalStop(innerRect.topRight());
d->checkerPainter.paint(p, innerRect);
p.fillRect(innerRect, QBrush(paintGradient));
} else if (patternBackground) {
d->checkerPainter.paint(p, QRect(QPoint(),iconSize));
p.fillRect(0, 0, iconSize.width(), iconSize.height(), patternBackground->pattern());
}
p.end();
setIcon(QIcon(QPixmap::fromImage(pm)));
}
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