-/***************************************************************************
- * Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com> *
- * *
- * 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 <peter.penz19@gmail.com>
+ *
+ * Based on the Itemviews NG project from Trolltech Labs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "kstandarditemlistgroupheader.h"
#include "kitemlistview.h"
#include <QGraphicsSceneResizeEvent>
#include <QPainter>
#include <QStyleOptionGraphicsItem>
-#include <KDebug>
-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()
{
- deleteCache();
}
-void KItemListGroupHeader::setRole(const QByteArray& role)
+void KItemListGroupHeader::setRole(const QByteArray &role)
{
if (m_role != role) {
const QByteArray previous = m_role;
return m_role;
}
-void KItemListGroupHeader::setData(const QVariant& data)
+void KItemListGroupHeader::setData(const QVariant &data)
{
if (m_data != data) {
const QVariant previous = m_data;
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;
}
m_scrollOrientation = orientation;
if (orientation == Qt::Vertical) {
m_dirtyCache = true;
- } else {
- deleteCache();
}
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(option);
- Q_UNUSED(widget);
-
- if (m_scrollOrientation == Qt::Horizontal) {
- Q_ASSERT(!m_leftBorderCache);
- Q_ASSERT(!m_rightBorderCache);
- return;
- }
+ Q_UNUSED(painter)
+ Q_UNUSED(option)
+ Q_UNUSED(widget)
if (m_dirtyCache) {
updateCache();
}
- 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::resizeEvent(QGraphicsSceneResizeEvent* event)
+void KItemListGroupHeader::itemIndexChanged(int current, int previous)
+{
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
+}
+
+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);
- deleteCache();
+ // 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);
+
+ updateSize();
- const int length = qMax(int(size().height() - 1), 1);
- m_leftBorderCache = new QPixmap(length, length);
- m_leftBorderCache->fill(Qt::transparent);
+ m_dirtyCache = false;
+}
- m_rightBorderCache = new QPixmap(length, length);
- m_rightBorderCache->fill(Qt::transparent);
+void KItemListGroupHeader::updateSize()
+{
+ const int padding = qMax(1, m_styleOption.padding);
+ const int horizontalMargin = qMax(2, m_styleOption.horizontalMargin);
- // 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 <ereslibre@kde.org>
- {
- // 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);
- }
+ const QFontMetrics fontMetrics(m_styleOption.font);
+ const qreal roleHeight = fontMetrics.height();
- {
- // Cache the right border as pixmap
- QPainter painter(m_rightBorderCache);
- painter.setPen(m_outlineColor);
-
- // 1. Draw top horizontal line
- painter.drawLine(0, 0, length - 3, 0);
-
- // 2. Draw vertical line with gradient
- const int right = length - 1;
- 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);
- }
+ const int y = (m_scrollOrientation == Qt::Vertical) ? padding : horizontalMargin;
- m_dirtyCache = false;
+ m_roleBounds = QRectF(horizontalMargin + padding, y, size().width() - 2 * (padding + horizontalMargin), roleHeight);
+
+ update();
}
-void KItemListGroupHeader::deleteCache()
+QColor KItemListGroupHeader::mixedColor(const QColor &c1, const QColor &c2, int c1Percent)
{
- delete m_leftBorderCache;
- m_leftBorderCache = 0;
+ 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);
+}
- delete m_rightBorderCache;
- m_rightBorderCache = 0;
+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"
projects / dolphin.git / blobdiff