diff options
Diffstat (limited to 'libgroupview/src/kcategorydrawer.cpp')
| -rw-r--r-- | libgroupview/src/kcategorydrawer.cpp | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/libgroupview/src/kcategorydrawer.cpp b/libgroupview/src/kcategorydrawer.cpp new file mode 100644 index 00000000..951c1eb2 --- /dev/null +++ b/libgroupview/src/kcategorydrawer.cpp @@ -0,0 +1,231 @@ +/** + * 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" |