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Instance view, model, delegate.

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Petr Mrázek
2013-03-11 22:19:17 +01:00
parent 36396f7c6a
commit 46f93311af
24 changed files with 3585 additions and 111 deletions
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libgroupview/src/kcategorydrawer.cpp Normal file
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/**
* This file is part of the KDE project
* Copyright (C) 2007, 2009 Rafael Fernández López <ereslibre@kde.org>
*
* 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 "kcategorydrawer.h"
#include <QPainter>
#include <QStyleOption>
#include <QApplication>
#include <kcategorizedview.h>
#include <kcategorizedsortfilterproxymodel.h>
#define HORIZONTAL_HINT 3
class KCategoryDrawer::Private
{
public:
Private(KCategorizedView *view)
: view(view)
, leftMargin(0)
, rightMargin(0)
{
}
~Private()
{
}
int leftMargin;
int rightMargin;
KCategorizedView *view;
};
KCategoryDrawer::KCategoryDrawer(KCategorizedView *view)
: QObject(view)
, d(new Private(view))
{
setLeftMargin(2);
setRightMargin(2);
}
KCategoryDrawer::~KCategoryDrawer()
{
delete d;
}
void KCategoryDrawer::drawCategory(const QModelIndex &index,
int /*sortRole*/,
const QStyleOption &option,
QPainter *painter) const
{
painter->setRenderHint(QPainter::Antialiasing);
const QString category = index.model()->data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole).toString();
const QRect optRect = option.rect;
QFont font(QApplication::font());
font.setBold(true);
const QFontMetrics fontMetrics = QFontMetrics(font);
QColor outlineColor = option.palette.text().color();
outlineColor.setAlphaF(0.35);
//BEGIN: top left corner
{
painter->save();
painter->setPen(outlineColor);
const QPointF topLeft(optRect.topLeft());
QRectF arc(topLeft, QSizeF(4, 4));
arc.translate(0.5, 0.5);
painter->drawArc(arc, 1440, 1440);
painter->restore();
}
//END: top left corner
//BEGIN: left vertical line
{
QPoint start(optRect.topLeft());
start.ry() += 3;
QPoint verticalGradBottom(optRect.topLeft());
verticalGradBottom.ry() += fontMetrics.height() + 5;
QLinearGradient gradient(start, verticalGradBottom);
gradient.setColorAt(0, outlineColor);
gradient.setColorAt(1, Qt::transparent);
painter->fillRect(QRect(start, QSize(1, fontMetrics.height() + 5)), gradient);
}
//END: left vertical line
//BEGIN: horizontal line
{
QPoint start(optRect.topLeft());
start.rx() += 3;
QPoint horizontalGradTop(optRect.topLeft());
horizontalGradTop.rx() += optRect.width() - 6;
painter->fillRect(QRect(start, QSize(optRect.width() - 6, 1)), outlineColor);
}
//END: horizontal line
//BEGIN: top right corner
{
painter->save();
painter->setPen(outlineColor);
QPointF topRight(optRect.topRight());
topRight.rx() -= 4;
QRectF arc(topRight, QSizeF(4, 4));
arc.translate(0.5, 0.5);
painter->drawArc(arc, 0, 1440);
painter->restore();
}
//END: top right corner
//BEGIN: right vertical line
{
QPoint start(optRect.topRight());
start.ry() += 3;
QPoint verticalGradBottom(optRect.topRight());
verticalGradBottom.ry() += fontMetrics.height() + 5;
QLinearGradient gradient(start, verticalGradBottom);
gradient.setColorAt(0, outlineColor);
gradient.setColorAt(1, Qt::transparent);
painter->fillRect(QRect(start, QSize(1, fontMetrics.height() + 5)), gradient);
}
//END: right vertical line
//BEGIN: text
{
QRect textRect(option.rect);
textRect.setTop(textRect.top() + 7);
textRect.setLeft(textRect.left() + 7);
textRect.setHeight(fontMetrics.height());
textRect.setRight(textRect.right() - 7);
painter->save();
painter->setFont(font);
QColor penColor(option.palette.text().color());
penColor.setAlphaF(0.6);
painter->setPen(penColor);
painter->drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, category);
painter->restore();
}
//END: text
}
int KCategoryDrawer::categoryHeight(const QModelIndex &index, const QStyleOption &option) const
{
Q_UNUSED(index);
Q_UNUSED(option)
QFont font(QApplication::font());
font.setBold(true);
QFontMetrics fontMetrics(font);
const int height = fontMetrics.height() + 1 /* 1 pixel-width gradient */
+ 11 /* top and bottom separation */;
return height;
}
int KCategoryDrawer::leftMargin() const
{
return d->leftMargin;
}
void KCategoryDrawer::setLeftMargin(int leftMargin)
{
d->leftMargin = leftMargin;
}
int KCategoryDrawer::rightMargin() const
{
return d->rightMargin;
}
void KCategoryDrawer::setRightMargin(int rightMargin)
{
d->rightMargin = rightMargin;
}
KCategoryDrawer &KCategoryDrawer::operator=(const KCategoryDrawer &cd)
{
d->leftMargin = cd.d->leftMargin;
d->rightMargin = cd.d->rightMargin;
d->view = cd.d->view;
return *this;
}
KCategorizedView *KCategoryDrawer::view() const
{
return d->view;
}
void KCategoryDrawer::mouseButtonPressed(const QModelIndex&, const QRect&, QMouseEvent *event)
{
event->ignore();
}
void KCategoryDrawer::mouseButtonReleased(const QModelIndex&, const QRect&, QMouseEvent *event)
{
event->ignore();
}
void KCategoryDrawer::mouseMoved(const QModelIndex&, const QRect&, QMouseEvent *event)
{
event->ignore();
}
void KCategoryDrawer::mouseButtonDoubleClicked(const QModelIndex&, const QRect&, QMouseEvent *event)
{
event->ignore();
}
void KCategoryDrawer::mouseLeft(const QModelIndex&, const QRect&)
{
}
#include "kcategorydrawer.moc"