X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/54b5a283765f168575f2eaeff95c93dbeca3d63d..e57f6215659ee36877c7c36c9e3fcba0ba5d03a0:/src/kitemviews/kitemlistgroupheader.cpp diff --git a/src/kitemviews/kitemlistgroupheader.cpp b/src/kitemviews/kitemlistgroupheader.cpp index 7413a7d25..20cbc681f 100644 --- a/src/kitemviews/kitemlistgroupheader.cpp +++ b/src/kitemviews/kitemlistgroupheader.cpp @@ -1,54 +1,38 @@ -/*************************************************************************** - * Copyright (C) 2011 by Peter Penz * - * * - * Based on the Itemviews NG project from Trolltech Labs: * - * http://qt.gitorious.org/qt-labs/itemviews-ng * - * * - * 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 "kitemlistgroupheader.h" +/* + * SPDX-FileCopyrightText: 2011 Peter Penz + * + * Based on the Itemviews NG project from Trolltech Labs + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "kstandarditemlistgroupheader.h" #include "kitemlistview.h" #include #include #include -#include -KItemListGroupHeader::KItemListGroupHeader(QGraphicsWidget* parent) : - QGraphicsWidget(parent, 0), - m_dirtyCache(true), - m_role(), - m_data(), - m_styleOption(), - m_scrollOrientation(Qt::Vertical), - m_leftBorderCache(0), - m_rightBorderCache(0), - m_outlineColor() +KItemListGroupHeader::KItemListGroupHeader(QGraphicsWidget *parent) + : QGraphicsWidget(parent) + , m_dirtyCache(true) + , m_role() + , m_data() + , m_styleOption() + , m_scrollOrientation(Qt::Vertical) + , m_itemIndex(-1) + , m_separatorColor() + , m_roleColor() + , m_roleBounds() { } KItemListGroupHeader::~KItemListGroupHeader() { - delete m_leftBorderCache; - delete m_rightBorderCache; } -void KItemListGroupHeader::setRole(const QByteArray& role) +void KItemListGroupHeader::setRole(const QByteArray &role) { if (m_role != role) { const QByteArray previous = m_role; @@ -63,7 +47,7 @@ QByteArray KItemListGroupHeader::role() const return m_role; } -void KItemListGroupHeader::setData(const QVariant& data) +void KItemListGroupHeader::setData(const QVariant &data) { if (m_data != data) { const QVariant previous = m_data; @@ -78,15 +62,19 @@ QVariant KItemListGroupHeader::data() const return m_data; } -void KItemListGroupHeader::setStyleOption(const KItemListStyleOption& option) +void KItemListGroupHeader::setStyleOption(const KItemListStyleOption &option) { + if (m_styleOption == option) { + return; + } + const KItemListStyleOption previous = m_styleOption; m_styleOption = option; m_dirtyCache = true; styleOptionChanged(option, previous); } -const KItemListStyleOption& KItemListGroupHeader::styleOption() const +const KItemListStyleOption &KItemListGroupHeader::styleOption() const { return m_styleOption; } @@ -96,147 +84,147 @@ void KItemListGroupHeader::setScrollOrientation(Qt::Orientation orientation) if (m_scrollOrientation != orientation) { const Qt::Orientation previous = m_scrollOrientation; m_scrollOrientation = orientation; - m_dirtyCache = true; + if (orientation == Qt::Vertical) { + m_dirtyCache = true; + } scrollOrientationChanged(orientation, previous); } } +void KItemListGroupHeader::setItemIndex(int index) +{ + if (m_itemIndex != index) { + const int previous = m_itemIndex; + m_itemIndex = index; + m_dirtyCache = true; + itemIndexChanged(m_itemIndex, previous); + } +} + +int KItemListGroupHeader::itemIndex() const +{ + return m_itemIndex; +} + Qt::Orientation KItemListGroupHeader::scrollOrientation() const { return m_scrollOrientation; } -void KItemListGroupHeader::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget) +void KItemListGroupHeader::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { + Q_UNUSED(painter) + Q_UNUSED(option) + Q_UNUSED(widget) + if (m_dirtyCache) { updateCache(); } - Q_UNUSED(option); - Q_UNUSED(widget); - - const int leftBorderX = m_leftBorderCache->width() + 1; - const int rightBorderX = size().width() - m_rightBorderCache->width() - 2; - - painter->setPen(m_outlineColor); - painter->drawLine(leftBorderX, 1, rightBorderX, 1); - - painter->drawPixmap(1, 1, *m_leftBorderCache); - painter->drawPixmap(rightBorderX, 1, *m_rightBorderCache); + paintSeparator(painter, m_separatorColor); + paintRole(painter, m_roleBounds, m_roleColor); } -void KItemListGroupHeader::roleChanged(const QByteArray& current, const QByteArray& previous) +void KItemListGroupHeader::roleChanged(const QByteArray ¤t, const QByteArray &previous) { - Q_UNUSED(current); - Q_UNUSED(previous); + Q_UNUSED(current) + Q_UNUSED(previous) } -void KItemListGroupHeader::dataChanged(const QVariant& current, const QVariant& previous) +void KItemListGroupHeader::dataChanged(const QVariant ¤t, const QVariant &previous) { - Q_UNUSED(current); - Q_UNUSED(previous); + Q_UNUSED(current) + Q_UNUSED(previous) } -void KItemListGroupHeader::styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous) +void KItemListGroupHeader::styleOptionChanged(const KItemListStyleOption ¤t, const KItemListStyleOption &previous) { - Q_UNUSED(current); - Q_UNUSED(previous); + Q_UNUSED(current) + Q_UNUSED(previous) } void KItemListGroupHeader::scrollOrientationChanged(Qt::Orientation current, Qt::Orientation previous) { - Q_UNUSED(current); - Q_UNUSED(previous); + Q_UNUSED(current) + Q_UNUSED(previous) +} + +void KItemListGroupHeader::itemIndexChanged(int current, int previous) +{ + Q_UNUSED(current) + Q_UNUSED(previous) } -void KItemListGroupHeader::resizeEvent(QGraphicsSceneResizeEvent* event) +void KItemListGroupHeader::resizeEvent(QGraphicsSceneResizeEvent *event) { QGraphicsWidget::resizeEvent(event); if (event->oldSize().height() != event->newSize().height()) { m_dirtyCache = true; } + updateSize(); } void KItemListGroupHeader::updateCache() { Q_ASSERT(m_dirtyCache); - delete m_leftBorderCache; - delete m_rightBorderCache; + // Calculate the role- and line-color. No alphablending is used for + // performance reasons. + const QColor c1 = textColor(); + const QColor c2 = baseColor(); + m_separatorColor = mixedColor(c1, c2, 10); + m_roleColor = mixedColor(c1, c2, 60); - const int length = size().height() - 1; - m_leftBorderCache = new QPixmap(length, length); - m_leftBorderCache->fill(Qt::transparent); + updateSize(); - m_rightBorderCache = new QPixmap(length, length); - m_rightBorderCache->fill(Qt::transparent); + m_dirtyCache = false; +} - // Calculate the outline color. No alphablending is used for - // performance reasons. - const QColor c1 = m_styleOption.palette.text().color(); - const QColor c2 = m_styleOption.palette.background().color(); - const int p1 = 35; - const int p2 = 100 - p1; - m_outlineColor = QColor((c1.red() * p1 + c2.red() * p2) / 100, - (c1.green() * p1 + c2.green() * p2) / 100, - (c1.blue() * p1 + c2.blue() * p2) / 100); - - // The drawing code is based on the code of DolphinCategoryDrawer from Dolphin 1.7 - // Copyright (C) 2007 Rafael Fernández López - { - // Cache the left border as pixmap - QPainter painter(m_leftBorderCache); - painter.setPen(m_outlineColor); - - // 1. Draw top horizontal line - painter.drawLine(3, 0, length, 0); - - // 2. Draw vertical line with gradient - const QPoint start(0, 3); - QLinearGradient gradient(start, QPoint(0, length)); - gradient.setColorAt(0, m_outlineColor); - gradient.setColorAt(1, Qt::transparent); - painter.fillRect(QRect(start, QSize(1, length - start.y())), gradient); - - // 3. Draw arc - painter.setRenderHint(QPainter::Antialiasing); - QRectF arc(QPointF(0, 0), QSizeF(4, 4)); - arc.translate(0.5, 0.5); - painter.drawArc(arc, 1440, 1440); - } +void KItemListGroupHeader::updateSize() +{ + const int padding = qMax(1, m_styleOption.padding); + const int horizontalMargin = qMax(2, m_styleOption.horizontalMargin); - { - // Cache the right border as pixmap - QPainter painter(m_rightBorderCache); - painter.setPen(m_outlineColor); - - const int right = length - 1; - if (m_scrollOrientation == Qt::Vertical) { - // 1. Draw top horizontal line - painter.drawLine(0, 0, length - 3, 0); - - // 2. Draw vertical line with gradient - const QPoint start(right, 3); - QLinearGradient gradient(start, QPoint(right, length)); - gradient.setColorAt(0, m_outlineColor); - gradient.setColorAt(1, Qt::transparent); - painter.fillRect(QRect(start, QSize(1, length - start.y())), gradient); - - // 3. Draw arc - painter.setRenderHint(QPainter::Antialiasing); - QRectF arc(QPointF(length - 5, 0), QSizeF(4, 4)); - arc.translate(0.5, 0.5); - painter.drawArc(arc, 0, 1440); - } else { - // Draw a horizontal gradiented line - QLinearGradient gradient(QPoint(0, 0), QPoint(length, 0)); - gradient.setColorAt(0, m_outlineColor); - gradient.setColorAt(1, Qt::transparent); - painter.fillRect(QRect(QPoint(0, 0), QSize(length, 1)), gradient); - } - } + const QFontMetrics fontMetrics(m_styleOption.font); + const qreal roleHeight = fontMetrics.height(); - m_dirtyCache = false; + const int y = (m_scrollOrientation == Qt::Vertical) ? padding : horizontalMargin; + + m_roleBounds = QRectF(horizontalMargin + padding, y, size().width() - 2 * (padding + horizontalMargin), roleHeight); + + update(); +} + +QColor KItemListGroupHeader::mixedColor(const QColor &c1, const QColor &c2, int c1Percent) +{ + Q_ASSERT(c1Percent >= 0 && c1Percent <= 100); + + const int c2Percent = 100 - c1Percent; + return QColor((c1.red() * c1Percent + c2.red() * c2Percent) / 100, + (c1.green() * c1Percent + c2.green() * c2Percent) / 100, + (c1.blue() * c1Percent + c2.blue() * c2Percent) / 100); +} + +QPalette::ColorRole KItemListGroupHeader::normalTextColorRole() const +{ + return QPalette::Text; +} + +QPalette::ColorRole KItemListGroupHeader::normalBaseColorRole() const +{ + return QPalette::Window; +} + +QColor KItemListGroupHeader::textColor() const +{ + const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive; + return styleOption().palette.color(group, normalTextColorRole()); +} + +QColor KItemListGroupHeader::baseColor() const +{ + const QPalette::ColorGroup group = isActiveWindow() ? QPalette::Active : QPalette::Inactive; + return styleOption().palette.color(group, normalBaseColorRole()); } -#include "kitemlistgroupheader.moc" +#include "moc_kitemlistgroupheader.cpp"