mirror of
https://bitbucket.org/smil3y/kde-extraapps.git
synced 2025-02-24 02:42:52 +00:00
465 lines
13 KiB
C++
465 lines
13 KiB
C++
/**
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* Copyright (C) 2003-2004 Scott Wheeler <wheeler@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify it under
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* the terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* PARTICULAR PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "viewmode.h"
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#include <kiconloader.h>
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#include <kstandarddirs.h>
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#include <kdebug.h>
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#include <QPixmap>
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#include <QPainter>
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#include <QResizeEvent>
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#include "playlistbox.h"
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#include "searchplaylist.h"
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#include "treeviewitemplaylist.h"
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#include "collectionlist.h"
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////////////////////////////////////////////////////////////////////////////////
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// ViewMode
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////////////////////////////////////////////////////////////////////////////////
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ViewMode::ViewMode(PlaylistBox *b) :
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QObject(b),
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m_playlistBox(b),
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m_visible(false),
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m_needsRefresh(false)
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{
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m_playlistBox->viewport()->installEventFilter(this);
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}
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ViewMode::~ViewMode()
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{
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}
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void ViewMode::paintCell(PlaylistBox::Item *item,
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QPainter *painter,
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const QColorGroup &colorGroup,
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int column, int width, int)
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{
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if(width < item->pixmap(column)->width())
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return;
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if(m_needsRefresh)
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updateHeights();
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QFontMetrics fm = painter->fontMetrics();
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int y = item->listView()->itemMargin() + border;
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const QPixmap *pm = item->pixmap(column);
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if(item->isSelected()) {
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painter->eraseRect(0, 0, width, item->height());
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painter->setRenderHint(QPainter::Antialiasing);
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QPen oldPen = painter->pen();
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QPen newPen = oldPen;
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painter->setPen(newPen);
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newPen.setJoinStyle(Qt::RoundJoin);
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newPen.setWidth(1);
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QColor background = m_playlistBox->palette().color(QPalette::Highlight);
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newPen.setColor(m_playlistBox->palette().color(QPalette::Text));
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painter->setPen(newPen);
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painter->drawRoundedRect(border, border, width - border * 2,
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item->height() - border * 2, 2, 2);
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QRect inner(border + 1, border + 1, width - border * 2 - 2,
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item->height() - border * 2 - 2);
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painter->fillRect(inner, background);
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QPainterPath path(inner.bottomLeft());
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path.lineTo(QPoint(inner.topLeft().x(), inner.topLeft().y() - 3));
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const QPointF topLeft(inner.topLeft());
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QRectF arc(topLeft, QSizeF(4, 4));
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path.arcTo(arc, 180, -90);
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path.lineTo(inner.topRight());
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path.lineTo(inner.bottomRight());
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path.lineTo(inner.bottomLeft());
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QColor window(item->listView()->palette().window().color());
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const QColor base = background;
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window.setAlphaF(0.5);
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QLinearGradient decoGradient1;
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decoGradient1.setStart(inner.topLeft());
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decoGradient1.setFinalStop(inner.bottomLeft());
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decoGradient1.setColorAt(0, window);
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decoGradient1.setColorAt(1, Qt::transparent);
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QLinearGradient decoGradient2;
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decoGradient2.setStart(inner.topLeft());
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decoGradient2.setFinalStop(inner.topRight());
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decoGradient2.setColorAt(0, Qt::transparent);
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decoGradient2.setColorAt(1, base);
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painter->fillPath(path, decoGradient1);
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painter->fillPath(path, decoGradient2);
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painter->setPen(colorGroup.color(QPalette::HighlightedText));
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}
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else
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painter->eraseRect(0, 0, width, item->height());
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if(!pm->isNull()) {
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int x = (width - pm->width()) / 2;
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x = qMax(x, item->listView()->itemMargin());
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painter->drawPixmap(x, y, *pm);
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}
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y += pm->height() + fm.height() - fm.descent();
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foreach(const QString &line, m_lines[item]) {
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int x = (width - fm.width(line)) / 2;
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x = qMax(x, item->listView()->itemMargin());
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painter->drawText(x, y, line);
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y += fm.height() - fm.descent();
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}
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if(item == item->listView()->dropItem())
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paintDropIndicator(painter, width, item->height());
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}
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bool ViewMode::eventFilter(QObject *watched, QEvent *e)
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{
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if(m_visible && watched == m_playlistBox->viewport() && e->type() == QEvent::Resize) {
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QResizeEvent *re = static_cast<QResizeEvent *>(e);
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if(re->size().width() != re->oldSize().width())
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m_needsRefresh = true;
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}
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if(e->type() == QEvent::Hide)
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m_needsRefresh = true;
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return QObject::eventFilter(watched, e);
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}
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QString ViewMode::name() const
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{
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return i18nc("the normal viewing mode", "Default");
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}
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void ViewMode::setShown(bool shown)
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{
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m_visible = shown;
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if(shown) {
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updateIcons(32);
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m_needsRefresh = true;
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}
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}
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void ViewMode::updateIcons(int size)
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{
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for(Q3ListViewItemIterator it(m_playlistBox); it.current(); ++it) {
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PlaylistBox::Item *i = static_cast<PlaylistBox::Item *>(*it);
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i->setPixmap(0, SmallIcon(i->iconName(), size));
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}
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}
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void ViewMode::setupItem(PlaylistBox::Item *item) const
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{
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const PlaylistBox *box = item->listView();
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const int width = box->width() - box->verticalScrollBar()->width() - border * 2;
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const int baseHeight = 2 * box->itemMargin() + 32 + border * 2;
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const QFontMetrics fm = box->fontMetrics();
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item->setHeight(baseHeight + (fm.height() - fm.descent()) * lines(item, fm, width).count());
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}
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void ViewMode::updateHeights()
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{
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const int width = m_playlistBox->width() - m_playlistBox->verticalScrollBar()->width() - border * 2;
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const int baseHeight = 2 * m_playlistBox->itemMargin() + 32 +
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border * 2 + 4;
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const QFontMetrics fm = m_playlistBox->fontMetrics();
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for(Q3ListViewItemIterator it(m_playlistBox); it.current(); ++it) {
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PlaylistBox::Item *i = static_cast<PlaylistBox::Item *>(it.current());
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m_lines[i] = lines(i, fm, width);
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const int height = baseHeight + (fm.height() - fm.descent()) * m_lines[i].count();
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i->setHeight(height);
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}
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m_needsRefresh = false;
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}
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void ViewMode::paintDropIndicator(QPainter *painter, int width, int height) // static
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{
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static const int border = 1;
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static const int lineWidth = 2;
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QPen oldPen = painter->pen();
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QPen newPen = oldPen;
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newPen.setWidth(lineWidth);
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newPen.setStyle(Qt::DotLine);
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painter->setPen(newPen);
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painter->drawRect(border, border, width - border * 2, height - border * 2);
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painter->setPen(oldPen);
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}
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QStringList ViewMode::lines(const PlaylistBox::Item *item,
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const QFontMetrics &fm,
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int width)
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{
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// Here 32 is a bit arbitrary, but that's the width of the icons in this
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// mode and seems to a reasonable toLower bound.
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if(width < 32)
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return QStringList();
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QString line = item->text();
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QStringList l;
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while(!line.isEmpty()) {
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int textLength = line.length();
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while(textLength > 0 &&
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fm.width(line.mid(0, textLength).trimmed()) +
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item->listView()->itemMargin() * 2 > width)
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{
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int i = line.lastIndexOf(QRegExp( "\\W"), textLength - 1);
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if(i > 0)
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textLength = i;
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else
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textLength--;
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}
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l.append(line.mid(0, textLength).trimmed());
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line = line.mid(textLength);
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}
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return l;
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}
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///////////////////////////////////////////////////////////////////////////////
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// CompactViewMode
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////////////////////////////////////////////////////////////////////////////////
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CompactViewMode::CompactViewMode(PlaylistBox *b) : ViewMode(b)
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{
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}
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CompactViewMode::~CompactViewMode()
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{
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}
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void CompactViewMode::paintCell(PlaylistBox::Item *item,
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QPainter *painter,
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const QColorGroup &colorGroup,
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int column, int width, int align)
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{
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item->K3ListViewItem::paintCell(painter, colorGroup, column, width, align);
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if(item == item->listView()->dropItem())
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paintDropIndicator(painter, width, item->height());
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}
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QString CompactViewMode::name() const
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{
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return i18nc("compact viewing mode", "Compact");
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}
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void CompactViewMode::setShown(bool shown)
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{
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setVisible(shown);
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if(shown) {
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updateIcons(16);
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updateHeights();
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}
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}
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void CompactViewMode::updateHeights()
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{
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for(Q3ListViewItemIterator it(playlistBox()); it.current(); ++it)
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it.current()->setup();
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}
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////////////////////////////////////////////////////////////////////////////////
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// TreeViewMode
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////////////////////////////////////////////////////////////////////////////////
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TreeViewMode::TreeViewMode(PlaylistBox *b) : CompactViewMode(b),
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m_dynamicListsFrozen(false), m_setup(false)
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{
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}
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TreeViewMode::~TreeViewMode()
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{
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}
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QString TreeViewMode::name() const
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{
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return i18n("Tree");
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}
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void TreeViewMode::setShown(bool show)
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{
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CompactViewMode::setShown(show);
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playlistBox()->setRootIsDecorated(show);
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if(show) {
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PlaylistBox::Item *collectionItem = PlaylistBox::Item::collectionItem();
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if(!collectionItem)
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return;
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if(collectionItem && m_searchCategories.isEmpty())
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setupDynamicPlaylists();
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else {
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foreach(PlaylistBox::Item *item, m_searchCategories)
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item->setVisible(true);
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}
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if(!m_setup) {
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m_setup = true;
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playlistBox()->setSorting(-1);
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CollectionList::instance()->setupTreeViewEntries(this);
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playlistBox()->setSorting(0);
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playlistBox()->sort();
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}
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}
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else {
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foreach(PlaylistBox::Item *item, m_searchCategories)
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item->setVisible(false);
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}
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}
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void TreeViewMode::removeItem(const QString &item, unsigned column)
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{
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if(!m_setup)
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return;
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QString itemKey;
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if(column == PlaylistItem::ArtistColumn)
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itemKey = "artists" + item;
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else if(column == PlaylistItem::GenreColumn)
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itemKey = "genres" + item;
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else if(column == PlaylistItem::AlbumColumn)
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itemKey = "albums" + item;
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else {
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kWarning() << "Unhandled column type " << column;
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return;
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}
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if(!m_treeViewItems.contains(itemKey))
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return;
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TreeViewItemPlaylist *itemPlaylist = m_treeViewItems.value(itemKey, 0);
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if(m_dynamicListsFrozen) {
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m_pendingItemsToRemove << itemKey;
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return;
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}
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m_treeViewItems.remove(itemKey);
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itemPlaylist->deleteLater();
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emit signalPlaylistDestroyed(itemPlaylist);
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}
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void TreeViewMode::addItems(const QStringList &items, unsigned column)
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{
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if(!m_setup)
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return;
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QString searchCategory;
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if(column == PlaylistItem::ArtistColumn)
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searchCategory = "artists";
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else if(column == PlaylistItem::GenreColumn)
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searchCategory = "genres";
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else if(column == PlaylistItem::AlbumColumn)
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searchCategory = "albums";
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else {
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kWarning() << "Unhandled column type " << column;
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return;
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}
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ColumnList columns;
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columns.append(column);
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PlaylistSearch::Component::MatchMode mode = PlaylistSearch::Component::ContainsWord;
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if(column != PlaylistItem::ArtistColumn)
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mode = PlaylistSearch::Component::Exact;
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PlaylistSearch::ComponentList components;
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PlaylistList playlists;
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playlists.append(CollectionList::instance());
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QString itemKey;
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PlaylistBox::Item *itemParent = m_searchCategories.value(searchCategory, 0);
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foreach(const QString &item, items) {
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itemKey = searchCategory + item;
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if(m_treeViewItems.contains(itemKey))
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continue;
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components.clear();
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components.append(PlaylistSearch::Component(item, false, columns, mode));
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PlaylistSearch s(playlists, components, PlaylistSearch::MatchAny, false);
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TreeViewItemPlaylist *p = new TreeViewItemPlaylist(playlistBox(), s, item);
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playlistBox()->setupPlaylist(p, "audio-midi", itemParent);
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m_treeViewItems.insert(itemKey, p);
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}
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}
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void TreeViewMode::setDynamicListsFrozen(bool frozen)
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{
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m_dynamicListsFrozen = frozen;
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if(frozen)
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return;
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foreach(const QString &pendingItem, m_pendingItemsToRemove) {
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m_treeViewItems[pendingItem]->deleteLater();
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m_treeViewItems.remove(pendingItem);
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}
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m_pendingItemsToRemove.clear();
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}
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void TreeViewMode::setupDynamicPlaylists()
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{
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PlaylistBox::Item *i;
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PlaylistBox::Item *collectionItem = PlaylistBox::Item::collectionItem();
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i = new PlaylistBox::Item(collectionItem, "media-optical-audio", i18n("Artists"));
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m_searchCategories.insert("artists", i);
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i = new PlaylistBox::Item(collectionItem, "media-optical-audio", i18n("Albums"));
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m_searchCategories.insert("albums", i);
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i = new PlaylistBox::Item(collectionItem, "media-optical-audio", i18n("Genres"));
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m_searchCategories.insert("genres", i);
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}
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#include "viewmode.moc"
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// vim: set et sw=4 tw=0 sta:
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