/***************************************************************************
* 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 *
+ * Based on the Itemviews NG project from Trolltech Labs *
* *
* 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 *
#include "kitemlistwidget.h"
#include "kitemlistview.h"
-#include "kitemmodelbase.h"
-
-#include <KDebug>
+#include "private/kitemlistselectiontoggle.h"
+#include <QApplication>
#include <QPainter>
#include <QPropertyAnimation>
-#include <QStyle>
#include <QStyleOption>
-KItemListWidget::KItemListWidget(QGraphicsItem* parent) :
- QGraphicsWidget(parent, 0),
+KItemListWidgetInformant::KItemListWidgetInformant()
+{
+}
+
+KItemListWidgetInformant::~KItemListWidgetInformant()
+{
+}
+
+KItemListWidget::KItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
+ QGraphicsWidget(parent),
+ m_informant(informant),
m_index(-1),
m_selected(false),
m_current(false),
m_hovered(false),
+ m_alternateBackground(false),
+ m_enabledSelectionToggle(false),
m_data(),
m_visibleRoles(),
- m_visibleRolesSizes(),
+ m_columnWidths(),
m_styleOption(),
+ m_siblingsInfo(),
m_hoverOpacity(0),
- m_hoverCache(0),
- m_hoverAnimation(0)
+ m_hoverCache(nullptr),
+ m_hoverAnimation(nullptr),
+ m_selectionToggle(nullptr),
+ m_editedRole()
{
}
KItemListWidget::~KItemListWidget()
{
- clearCache();
+ clearHoverCache();
}
void KItemListWidget::setIndex(int index)
{
if (m_index != index) {
+ delete m_selectionToggle;
+ m_selectionToggle = nullptr;
+
if (m_hoverAnimation) {
m_hoverAnimation->stop();
m_hoverOpacity = 0;
}
- clearCache();
+ clearHoverCache();
m_index = index;
}
void KItemListWidget::setData(const QHash<QByteArray, QVariant>& data,
const QSet<QByteArray>& roles)
{
- clearCache();
+ clearHoverCache();
if (roles.isEmpty()) {
m_data = data;
dataChanged(m_data);
}
dataChanged(m_data, roles);
}
+ update();
}
QHash<QByteArray, QVariant> KItemListWidget::data() const
void KItemListWidget::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
- Q_UNUSED(option);
+ Q_UNUSED(option)
- const QRect iconBounds = iconBoundingRect().toRect();
- if (m_selected) {
- QStyleOptionViewItemV4 viewItemOption;
- viewItemOption.initFrom(widget);
- viewItemOption.rect = iconBounds;
- viewItemOption.state = QStyle::State_Enabled | QStyle::State_Selected | QStyle::State_Item;
- viewItemOption.viewItemPosition = QStyleOptionViewItemV4::OnlyOne;
- widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
+ if (m_alternateBackground) {
+ const QColor backgroundColor = m_styleOption.palette.color(QPalette::AlternateBase);
+ const QRectF backgroundRect(0, 0, size().width(), size().height());
+ painter->fillRect(backgroundRect, backgroundColor);
}
- if (m_hoverOpacity <= 0.0) {
- return;
+ if (m_selected && m_editedRole.isEmpty()) {
+ const QStyle::State activeState(isActiveWindow() ? QStyle::State_Active : 0);
+ drawItemStyleOption(painter, widget, activeState |
+ QStyle::State_Enabled |
+ QStyle::State_Selected |
+ QStyle::State_Item);
}
- if (!m_hoverCache) {
- m_hoverCache = new QPixmap(iconBounds.size());
- m_hoverCache->fill(Qt::transparent);
+ if (m_current && m_editedRole.isEmpty()) {
+ QStyleOptionFocusRect focusRectOption;
+ initStyleOption(&focusRectOption);
+ focusRectOption.rect = textFocusRect().toRect();
+ focusRectOption.state = QStyle::State_Enabled | QStyle::State_Item | QStyle::State_KeyboardFocusChange;
+ if (m_selected) {
+ focusRectOption.state |= QStyle::State_Selected;
+ }
- QPainter pixmapPainter(m_hoverCache);
+ style()->drawPrimitive(QStyle::PE_FrameFocusRect, &focusRectOption, painter, widget);
+ }
- QStyleOptionViewItemV4 viewItemOption;
- viewItemOption.initFrom(widget);
- viewItemOption.rect = QRect(0, 0, iconBounds.width(), iconBounds.height());
- viewItemOption.state = QStyle::State_Enabled | QStyle::State_MouseOver | QStyle::State_Item;
- viewItemOption.viewItemPosition = QStyleOptionViewItemV4::OnlyOne;
+ if (m_hoverOpacity > 0.0) {
+ if (!m_hoverCache) {
+ // Initialize the m_hoverCache pixmap to improve the drawing performance
+ // when fading the hover background
+ m_hoverCache = new QPixmap(size().toSize());
+ m_hoverCache->fill(Qt::transparent);
+
+ QPainter pixmapPainter(m_hoverCache);
+ const QStyle::State activeState(isActiveWindow() ? QStyle::State_Active : 0);
+ drawItemStyleOption(&pixmapPainter, widget, activeState |
+ QStyle::State_Enabled |
+ QStyle::State_MouseOver |
+ QStyle::State_Item);
+ }
- widget->style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, &pixmapPainter, widget);
+ const qreal opacity = painter->opacity();
+ painter->setOpacity(m_hoverOpacity * opacity);
+ painter->drawPixmap(0, 0, *m_hoverCache);
+ painter->setOpacity(opacity);
}
-
- const qreal opacity = painter->opacity();
- painter->setOpacity(m_hoverOpacity * opacity);
- painter->drawPixmap(iconBounds.topLeft(), *m_hoverCache);
- painter->setOpacity(opacity);
}
-void KItemListWidget::setVisibleRoles(const QHash<QByteArray, int>& roles)
+void KItemListWidget::setVisibleRoles(const QList<QByteArray>& roles)
{
- const QHash<QByteArray, int> previousRoles = m_visibleRoles;
+ const QList<QByteArray> previousRoles = m_visibleRoles;
m_visibleRoles = roles;
+
visibleRolesChanged(roles, previousRoles);
+ update();
}
-QHash<QByteArray, int> KItemListWidget::visibleRoles() const
+QList<QByteArray> KItemListWidget::visibleRoles() const
{
return m_visibleRoles;
}
-void KItemListWidget::setVisibleRolesSizes(const QHash<QByteArray, QSizeF> rolesSizes)
+
+void KItemListWidget::setColumnWidth(const QByteArray& role, qreal width)
{
- const QHash<QByteArray, QSizeF> previousRolesSizes = m_visibleRolesSizes;
- m_visibleRolesSizes = rolesSizes;
- visibleRolesSizesChanged(rolesSizes, previousRolesSizes);
+ const qreal previousWidth = m_columnWidths.value(role);
+ if (previousWidth != width) {
+ m_columnWidths.insert(role, width);
+ columnWidthChanged(role, width, previousWidth);
+ update();
+ }
}
-QHash<QByteArray, QSizeF> KItemListWidget::visibleRolesSizes() const
+qreal KItemListWidget::columnWidth(const QByteArray& role) const
{
- return m_visibleRolesSizes;
+ return m_columnWidths.value(role);
}
void KItemListWidget::setStyleOption(const KItemListStyleOption& option)
{
+ if (m_styleOption == option) {
+ return;
+ }
+
const KItemListStyleOption previous = m_styleOption;
- clearCache();
+ clearHoverCache();
m_styleOption = option;
-
styleOptionChanged(option, previous);
+ update();
}
const KItemListStyleOption& KItemListWidget::styleOption() const
{
if (m_selected != selected) {
m_selected = selected;
+ if (m_selectionToggle) {
+ m_selectionToggle->setChecked(selected);
+ }
selectedChanged(selected);
update();
}
if (!m_hoverAnimation) {
m_hoverAnimation = new QPropertyAnimation(this, "hoverOpacity", this);
- m_hoverAnimation->setDuration(200);
+ const int duration = style()->styleHint(QStyle::SH_Widget_Animate) ? 200 : 1;
+ m_hoverAnimation->setDuration(duration);
+ connect(m_hoverAnimation, &QPropertyAnimation::finished, this, &KItemListWidget::slotHoverAnimationFinished);
}
m_hoverAnimation->stop();
if (hovered) {
+ const qreal startValue = qMax(hoverOpacity(), qreal(0.1));
+ m_hoverAnimation->setStartValue(startValue);
m_hoverAnimation->setEndValue(1.0);
+ if (m_enabledSelectionToggle && !(QApplication::mouseButtons() & Qt::LeftButton)) {
+ initializeSelectionToggle();
+ }
} else {
+ m_hoverAnimation->setStartValue(hoverOpacity());
m_hoverAnimation->setEndValue(0.0);
}
m_hoverAnimation->start();
hoveredChanged(hovered);
-
update();
}
return m_hovered;
}
+void KItemListWidget::setHoverPosition(const QPointF& pos)
+{
+ if (m_selectionToggle) {
+ m_selectionToggle->setHovered(selectionToggleRect().contains(pos));
+ }
+}
+
+void KItemListWidget::setAlternateBackground(bool enable)
+{
+ if (m_alternateBackground != enable) {
+ m_alternateBackground = enable;
+ alternateBackgroundChanged(enable);
+ update();
+ }
+}
+
+bool KItemListWidget::alternateBackground() const
+{
+ return m_alternateBackground;
+}
+
+void KItemListWidget::setEnabledSelectionToggle(bool enable)
+{
+ if (m_enabledSelectionToggle != enable) {
+ m_enabledSelectionToggle = enable;
+ update();
+ }
+}
+
+bool KItemListWidget::enabledSelectionToggle() const
+{
+ return m_enabledSelectionToggle;
+}
+
+void KItemListWidget::setSiblingsInformation(const QBitArray& siblings)
+{
+ const QBitArray previous = m_siblingsInfo;
+ m_siblingsInfo = siblings;
+ siblingsInformationChanged(m_siblingsInfo, previous);
+ update();
+}
+
+QBitArray KItemListWidget::siblingsInformation() const
+{
+ return m_siblingsInfo;
+}
+
+void KItemListWidget::setEditedRole(const QByteArray& role)
+{
+ if (m_editedRole != role) {
+ const QByteArray previous = m_editedRole;
+ m_editedRole = role;
+ editedRoleChanged(role, previous);
+ }
+}
+
+QByteArray KItemListWidget::editedRole() const
+{
+ return m_editedRole;
+}
+
bool KItemListWidget::contains(const QPointF& point) const
{
if (!QGraphicsWidget::contains(point)) {
return false;
}
- return iconBoundingRect().contains(point) ||
- textBoundingRect().contains(point) ||
+ return iconRect().contains(point) ||
+ textRect().contains(point) ||
expansionToggleRect().contains(point) ||
selectionToggleRect().contains(point);
}
+QRectF KItemListWidget::textFocusRect() const
+{
+ return textRect();
+}
+
QRectF KItemListWidget::selectionToggleRect() const
{
return QRectF();
return QRectF();
}
+QPixmap KItemListWidget::createDragPixmap(const QStyleOptionGraphicsItem* option,
+ QWidget* widget)
+{
+ QPixmap pixmap(size().toSize() * widget->devicePixelRatio());
+ pixmap.setDevicePixelRatio(widget->devicePixelRatio());
+ pixmap.fill(Qt::transparent);
+
+ QPainter painter(&pixmap);
+
+ const bool oldAlternateBackground = m_alternateBackground;
+ const bool wasSelected = m_selected;
+ const bool wasHovered = m_hovered;
+
+ setAlternateBackground(false);
+ setHovered(false);
+
+ paint(&painter, option, widget);
+
+ setAlternateBackground(oldAlternateBackground);
+ setSelected(wasSelected);
+ setHovered(wasHovered);
+
+ return pixmap;
+}
+
void KItemListWidget::dataChanged(const QHash<QByteArray, QVariant>& current,
const QSet<QByteArray>& roles)
{
- Q_UNUSED(current);
- Q_UNUSED(roles);
- update();
+ Q_UNUSED(current)
+ Q_UNUSED(roles)
}
-void KItemListWidget::visibleRolesChanged(const QHash<QByteArray, int>& current,
- const QHash<QByteArray, int>& previous)
+void KItemListWidget::visibleRolesChanged(const QList<QByteArray>& current,
+ const QList<QByteArray>& previous)
{
- Q_UNUSED(current);
- Q_UNUSED(previous);
- update();
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
}
-void KItemListWidget::visibleRolesSizesChanged(const QHash<QByteArray, QSizeF>& current,
- const QHash<QByteArray, QSizeF>& previous)
+void KItemListWidget::columnWidthChanged(const QByteArray& role,
+ qreal current,
+ qreal previous)
{
- Q_UNUSED(current);
- Q_UNUSED(previous);
- update();
+ Q_UNUSED(role)
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
}
void KItemListWidget::styleOptionChanged(const KItemListStyleOption& current,
const KItemListStyleOption& previous)
{
- Q_UNUSED(current);
- Q_UNUSED(previous);
- update();
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
}
void KItemListWidget::currentChanged(bool current)
{
- Q_UNUSED(current);
+ Q_UNUSED(current)
}
void KItemListWidget::selectedChanged(bool selected)
{
- Q_UNUSED(selected);
+ Q_UNUSED(selected)
}
void KItemListWidget::hoveredChanged(bool hovered)
{
- Q_UNUSED(hovered);
+ Q_UNUSED(hovered)
+}
+
+void KItemListWidget::alternateBackgroundChanged(bool enabled)
+{
+ Q_UNUSED(enabled)
+}
+
+void KItemListWidget::siblingsInformationChanged(const QBitArray& current, const QBitArray& previous)
+{
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
+}
+
+void KItemListWidget::editedRoleChanged(const QByteArray& current, const QByteArray& previous)
+{
+ Q_UNUSED(current)
+ Q_UNUSED(previous)
}
void KItemListWidget::resizeEvent(QGraphicsSceneResizeEvent* event)
{
QGraphicsWidget::resizeEvent(event);
- clearCache();
+ clearHoverCache();
+
+ if (m_selectionToggle) {
+ const QRectF& toggleRect = selectionToggleRect();
+ m_selectionToggle->setPos(toggleRect.topLeft());
+ m_selectionToggle->resize(toggleRect.size());
+ }
}
qreal KItemListWidget::hoverOpacity() const
return m_hoverOpacity;
}
+void KItemListWidget::slotHoverAnimationFinished()
+{
+ if (!m_hovered && m_selectionToggle) {
+ m_selectionToggle->deleteLater();
+ m_selectionToggle = nullptr;
+ }
+}
+
+void KItemListWidget::initializeSelectionToggle()
+{
+ Q_ASSERT(m_enabledSelectionToggle);
+
+ if (!m_selectionToggle) {
+ m_selectionToggle = new KItemListSelectionToggle(this);
+ }
+
+ const QRectF toggleRect = selectionToggleRect();
+ m_selectionToggle->setPos(toggleRect.topLeft());
+ m_selectionToggle->resize(toggleRect.size());
+
+ m_selectionToggle->setChecked(isSelected());
+}
+
void KItemListWidget::setHoverOpacity(qreal opacity)
{
m_hoverOpacity = opacity;
+ if (m_selectionToggle) {
+ m_selectionToggle->setOpacity(opacity);
+ }
+
+ if (m_hoverOpacity <= 0.0) {
+ delete m_hoverCache;
+ m_hoverCache = nullptr;
+ }
+
update();
}
-void KItemListWidget::clearCache()
+void KItemListWidget::clearHoverCache()
{
delete m_hoverCache;
- m_hoverCache = 0;
+ m_hoverCache = nullptr;
+}
+
+void KItemListWidget::drawItemStyleOption(QPainter* painter, QWidget* widget, QStyle::State styleState)
+{
+ QStyleOptionViewItem viewItemOption;
+ initStyleOption(&viewItemOption);
+ viewItemOption.state = styleState;
+ viewItemOption.viewItemPosition = QStyleOptionViewItem::OnlyOne;
+ viewItemOption.showDecorationSelected = true;
+ viewItemOption.rect = selectionRect().toRect();
+ style()->drawPrimitive(QStyle::PE_PanelItemViewItem, &viewItemOption, painter, widget);
}
-#include "kitemlistwidget.moc"
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