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/***************************************************************************
* Copyright (C) 2008 by Peter Penz <[email protected]> *
* *
* 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 "dolphinfileitemdelegate.h"
#include "dolphinmodel.h"
#include <KColorScheme>
#include <KFileItem>
#include <KIcon>
#include <KIconLoader>
#include <KStringHandler>
#include <QAbstractItemModel>
#include <QAbstractProxyModel>
#include <QFontMetrics>
#include <QPalette>
#include <QPainter>
#include <QStyleOptionViewItemV4>
DolphinFileItemDelegate::DolphinFileItemDelegate(QObject* parent) :
KFileItemDelegate(parent),
m_hasMinimizedNameColumn(false),
m_cachedSize(),
m_cachedEmblems()
{
setJobTransfersVisible(true);
}
DolphinFileItemDelegate::~DolphinFileItemDelegate()
{
}
void DolphinFileItemDelegate::paint(QPainter* painter,
const QStyleOptionViewItem& option,
const QModelIndex& index) const
{
const QAbstractProxyModel* proxyModel = static_cast<const QAbstractProxyModel*>(index.model());
const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(proxyModel->sourceModel());
const bool isNameColumn = (index.column() == KDirModel::Name);
QStyleOptionViewItemV4 opt(option);
if (m_hasMinimizedNameColumn && isNameColumn) {
adjustOptionWidth(opt, proxyModel, dolphinModel, index);
}
if (!isNameColumn) {
// Use the inactive text color for all columns except the name column. This indicates for the user that
// hovering other columns does not change the actions context.
QPalette palette = opt.palette;
const QColor textColor = KColorScheme(QPalette::Active).foreground(KColorScheme::InactiveText).color();
palette.setColor(QPalette::Text, textColor);
opt.palette = palette;
}
if (dolphinModel->hasVersionData() && isNameColumn) {
// The currently shown items are under revision control. Show the current revision
// state by adding an emblem and changing the text tintColor.
const QModelIndex dirIndex = proxyModel->mapToSource(index);
const QModelIndex revisionIndex = dolphinModel->index(dirIndex.row(), DolphinModel::Version, dirIndex.parent());
const QVariant data = dolphinModel->data(revisionIndex, Qt::DecorationRole);
const KVersionControlPlugin::VersionState state = static_cast<KVersionControlPlugin::VersionState>(data.toInt());
adjustOptionTextColor(opt, state);
KFileItemDelegate::paint(painter, opt, index);
if (state != KVersionControlPlugin::UnversionedVersion) {
const QRect rect = iconRect(option, index);
const QPixmap emblem = emblemForState(state, rect.size());
painter->drawPixmap(rect.x(), rect.y() + rect.height() - emblem.height(), emblem);
}
} else {
KFileItemDelegate::paint(painter, opt, index);
}
}
int DolphinFileItemDelegate::nameColumnWidth(const QString& name, const QStyleOptionViewItem& option)
{
QFontMetrics fontMetrics(option.font);
int width = option.decorationSize.width() + fontMetrics.width(KStringHandler::preProcessWrap(name)) + 16;
const int defaultWidth = option.rect.width();
if ((defaultWidth > 0) && (defaultWidth < width)) {
width = defaultWidth;
}
return width;
}
void DolphinFileItemDelegate::adjustOptionWidth(QStyleOptionViewItemV4& option,
const QAbstractProxyModel* proxyModel,
const DolphinModel* dolphinModel,
const QModelIndex& index)
{
const QModelIndex dirIndex = proxyModel->mapToSource(index);
const KFileItem item = dolphinModel->itemForIndex(dirIndex);
if (!item.isNull()) {
// symbolic links are displayed in an italic font
if (item.isLink()) {
option.font.setItalic(true);
}
const int width = nameColumnWidth(item.text(), option);
option.rect.setWidth(width);
}
}
void DolphinFileItemDelegate::adjustOptionTextColor(QStyleOptionViewItemV4& option,
KVersionControlPlugin::VersionState state)
{
QColor tintColor;
// Using hardcoded colors is generally a bad idea. In this case the colors just act
// as tint colors and are mixed with the current set text color. The tint colors
// have been optimized for the base colors of the corresponding Oxygen emblems.
switch (state) {
case KVersionControlPlugin::UpdateRequiredVersion: tintColor = Qt::yellow; break;
case KVersionControlPlugin::LocallyModifiedUnstagedVersion: tintColor = Qt::darkGreen; break;
case KVersionControlPlugin::LocallyModifiedVersion: tintColor = Qt::green; break;
case KVersionControlPlugin::AddedVersion: tintColor = Qt::green; break;
case KVersionControlPlugin::RemovedVersion: tintColor = Qt::darkRed; break;
case KVersionControlPlugin::ConflictingVersion: tintColor = Qt::red; break;
case KVersionControlPlugin::UnversionedVersion:
case KVersionControlPlugin::NormalVersion:
default:
// use the default text color
return;
}
QPalette palette = option.palette;
const QColor textColor = palette.color(QPalette::Text);
tintColor = QColor((tintColor.red() + textColor.red()) / 2,
(tintColor.green() + textColor.green()) / 2,
(tintColor.blue() + textColor.blue()) / 2,
(tintColor.alpha() + textColor.alpha()) / 2);
palette.setColor(QPalette::Text, tintColor);
option.palette = palette;
}
QPixmap DolphinFileItemDelegate::emblemForState(KVersionControlPlugin::VersionState state, const QSize& size) const
{
Q_ASSERT(state <= KVersionControlPlugin::LocallyModifiedUnstagedVersion);
if (m_cachedSize != size) {
m_cachedSize = size;
const int iconHeight = size.height();
int emblemHeight = KIconLoader::SizeSmall;
if (iconHeight >= KIconLoader::SizeEnormous) {
emblemHeight = KIconLoader::SizeMedium;
} else if (iconHeight >= KIconLoader::SizeLarge) {
emblemHeight = KIconLoader::SizeSmallMedium;
} else if (iconHeight >= KIconLoader::SizeMedium) {
emblemHeight = KIconLoader::SizeSmall;
} else {
emblemHeight = KIconLoader::SizeSmall / 2;
}
const QSize emblemSize(emblemHeight, emblemHeight);
for (int i = KVersionControlPlugin::NormalVersion; i <= KVersionControlPlugin::LocallyModifiedUnstagedVersion; ++i) {
QString iconName;
switch (i) {
case KVersionControlPlugin::NormalVersion:
iconName = "vcs-normal";
break;
case KVersionControlPlugin::UpdateRequiredVersion:
iconName = "vcs-update-required";
break;
case KVersionControlPlugin::LocallyModifiedVersion:
iconName = "vcs-locally-modified";
break;
case KVersionControlPlugin::LocallyModifiedUnstagedVersion:
iconName = "vcs-locally-modified-unstaged";
break;
case KVersionControlPlugin::AddedVersion:
iconName = "vcs-added";
break;
case KVersionControlPlugin::RemovedVersion:
iconName = "vcs-removed";
break;
case KVersionControlPlugin::ConflictingVersion:
iconName = "vcs-conflicting";
break;
case KVersionControlPlugin::UnversionedVersion:
break;
default:
Q_ASSERT(false);
break;
}
m_cachedEmblems[i] = KIcon(iconName).pixmap(emblemSize);
}
}
return m_cachedEmblems[state];
}
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