first work on new breadcrumb

2025-08-06 06:07:37 +02:00 · 2011-10-25 17:59:12 -04:00
parent 2277c14882
commit 4db10f8195
9 changed files with 511 additions and 21 deletions
--- a/src/libtomahawk/widgets/BreadcrumbButton.cpp
+++ b/src/libtomahawk/widgets/BreadcrumbButton.cpp
@@ -0,0 +1,169 @@
+/* === This file is part of Tomahawk Player - <http://tomahawk-player.org> ===
+ *
+ *   Copyright 2011, Casey Link <unnamedrambler@gmail.com>
+ *   Copyright 2010-2011, Leo Franchi <lfranchi@kde.org>
+ *
+ *   Tomahawk 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 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Tomahawk 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 Tomahawk. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "BreadcrumbButton.h"
+
+#include "Breadcrumb.h"
+#include "combobox.h"
+#include "utils/stylehelper.h"
+#include "utils/tomahawkutils.h"
+
+#include <QPaintEvent>
+#include <QPainter>
+
+using namespace Tomahawk;
+
+BreadcrumbButton::BreadcrumbButton( Breadcrumb* parent, QAbstractItemModel* model )
+    : QWidget( parent )
+    , m_breadcrumb( parent )
+    , m_model( model )
+    , m_combo( new ComboBox( this ) )
+{
+    setFixedHeight( TomahawkUtils::headerHeight() );
+    m_combo->setSizeAdjustPolicy( QComboBox::AdjustToContents );
+
+    connect( m_combo, SIGNAL( activated( int ) ), SLOT( comboboxActivated( int ) ) );
+}
+
+void
+BreadcrumbButton::paintEvent( QPaintEvent* )
+{
+    QPainter p( this );
+    QStyleOption opt;
+    opt.initFrom( this );
+    QRect r = opt.rect;
+
+    StyleHelper::horizontalHeader( &p, r ); // draw the background
+
+    if( !hasChildren() )
+        return;
+
+    bool reverse = opt.direction == Qt::RightToLeft;
+    int menuButtonWidth = 12;
+    int rightSpacing = 10;
+    int left = !reverse ? r.right()-rightSpacing - menuButtonWidth : r.left();
+    int right = !reverse ? r.right()-rightSpacing : r.left() + menuButtonWidth;
+    int height = sizeHint().height();
+    QRect arrowRect( ( left + right ) / 2 + ( reverse ? 6 : -6 ), 0, height, height );
+
+    QStyleOption arrowOpt = opt;
+    arrowOpt.rect = arrowRect;
+
+
+    QLine l1( left, 0, right, height/2 );
+    QLine l2( left, height, right, height/2 );
+
+
+    p.setRenderHint( QPainter::Antialiasing, true );
+
+    // Draw the shadow
+    QColor shadow( 0, 0, 0, 100 );
+    p.translate( 0, -1 );
+    p.setPen( shadow );
+    p.drawLine( l1 );
+    p.drawLine( l2 );
+
+    // Draw the main arrow
+    QColor foreGround( "#747474" );
+    p.translate( 0, 1 );
+    p.setPen( foreGround );
+    p.drawLine( l1 );
+    p.drawLine( l2 );
+}
+
+QSize
+BreadcrumbButton::sizeHint() const
+{
+    // our width = width of combo + 20px for right-arrow and spacing
+    const int padding = hasChildren() ? 20 : 5;
+    return m_combo->sizeHint() + QSize( padding, 0 );
+}
+
+
+void
+BreadcrumbButton::setParentIndex( const QModelIndex& idx )
+{
+    m_parentIndex = idx;
+    // Populate listview with list of children.
+    // Then try to find a default
+    QStringList list;
+    int count = m_model->rowCount( m_parentIndex );
+    int defaultIndex = -1, userSelected = -1;
+    for ( int i = 0; i < count; ++i )
+    {
+        QModelIndex idx = m_model->index( i, 0, m_parentIndex );
+        if ( idx.isValid() )
+        {
+            list << idx.data().toString();
+            if ( idx.data( Breadcrumb::DefaultRole ).toBool() )
+                defaultIndex = i;
+            if ( idx.data( Breadcrumb::UserSelectedRole ).toBool() )
+                userSelected = i;
+        }
+    }
+
+
+    m_combo->clear();
+    m_combo->addItems( list );
+
+    if ( userSelected > -1 )
+        m_combo->setCurrentIndex( userSelected );
+    else if ( defaultIndex > -1 )
+        m_combo->setCurrentIndex( defaultIndex );
+
+    m_curIndex = m_model->index( m_combo->currentIndex(), 0, m_parentIndex );
+    m_combo->adjustSize();
+/*
+    if ( m_combo->count() && list.count() )
+    {
+        // Check if it's the same, Don't change if it is, as it'll cause flickering
+        QStringList old;
+        for ( int i = 0; i < m_combo->count(); i++ )
+            old << m_combo->itemText( i );
+
+        if ( list == old )
+            return;
+    }*/
+
+}
+
+void
+BreadcrumbButton::comboboxActivated( int idx )
+{
+    m_model->setData( m_curIndex, false, Breadcrumb::UserSelectedRole );
+
+    QModelIndex selected = m_model->index( idx, 0, m_parentIndex );
+    m_curIndex = selected;
+    m_model->setData( selected, true, Breadcrumb::UserSelectedRole );
+
+    emit currentIndexChanged( selected );
+}
+
+
+bool
+BreadcrumbButton::hasChildren() const
+{
+    return m_model->rowCount( m_model->index( m_combo->currentIndex(), 0, m_parentIndex ) ) > 0;
+}
+
+QModelIndex
+BreadcrumbButton::currentIndex() const
+{
+    return m_model->index( m_combo->currentIndex(), 0, m_parentIndex );
+}