147 lines
3.7 KiB
C++
147 lines
3.7 KiB
C++
#include "library.h"
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#include "libraryview.h"
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#include "libraryitem.h"
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#include <QPainter>
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const int LibraryView::kRowsToShow = 50;
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LibraryItemDelegate::LibraryItemDelegate(QObject *parent)
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: QStyledItemDelegate(parent)
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{
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}
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void LibraryItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opt, const QModelIndex &index) const {
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LibraryItem::Type type =
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static_cast<LibraryItem::Type>(index.data(Library::Role_Type).toInt());
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switch (type) {
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case LibraryItem::Type_Divider: {
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QString text(index.data().toString().toUpper());
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// Draw the background
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//QStyledItemDelegate::paint(painter, opt, QModelIndex());
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painter->save();
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// Draw the text
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QFont bold_font(opt.font);
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bold_font.setBold(true);
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QRect text_rect(opt.rect);
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text_rect.setLeft(text_rect.left() + 30);
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painter->setPen(opt.palette.color(QPalette::Text));
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painter->setFont(bold_font);
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painter->drawText(text_rect, text);
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//Draw the line under the item
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QPen line_pen(opt.palette.color(QPalette::Dark));
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line_pen.setWidth(2);
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painter->setPen(line_pen);
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painter->drawLine(opt.rect.bottomLeft(), opt.rect.bottomRight());
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painter->restore();
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break;
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}
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default:
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QStyledItemDelegate::paint(painter, opt, index);
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break;
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}
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}
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LibraryView::LibraryView(QWidget* parent)
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: QTreeView(parent),
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library_(NULL),
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total_song_count_(-1),
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nomusic_(":nomusic.png")
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{
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setItemDelegate(new LibraryItemDelegate(this));
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connect(this, SIGNAL(expanded(QModelIndex)), SLOT(ItemExpanded(QModelIndex)));
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}
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void LibraryView::SetLibrary(Library *library) {
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library_ = library;
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}
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void LibraryView::TotalSongCountUpdated(int count) {
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bool old = total_song_count_;
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total_song_count_ = count;
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if (old != total_song_count_)
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update();
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if (total_song_count_ == 0)
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setCursor(Qt::PointingHandCursor);
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else
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unsetCursor();
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}
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void LibraryView::reset() {
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QTreeView::reset();
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// Expand nodes in the tree until we have about 50 rows visible in the view
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int rows = model()->rowCount(rootIndex());
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RecursivelyExpand(rootIndex(), &rows);
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}
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void LibraryView::paintEvent(QPaintEvent* event) {
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QTreeView::paintEvent(event);
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QPainter p(viewport());
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QRect rect(viewport()->rect());
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if (total_song_count_ == 0) {
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// Draw the confused clementine
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QRect image_rect((rect.width() - nomusic_.width()) / 2, 50,
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nomusic_.width(), nomusic_.height());
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p.drawPixmap(image_rect, nomusic_);
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// Draw the title text
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QFont bold_font;
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bold_font.setBold(true);
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p.setFont(bold_font);
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QFontMetrics metrics(bold_font);
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QRect title_rect(0, image_rect.bottom() + 20, rect.width(), metrics.height());
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p.drawText(title_rect, Qt::AlignHCenter, tr("Your library is empty!"));
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// Draw the other text
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p.setFont(QFont());
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QRect text_rect(0, title_rect.bottom() + 5, rect.width(), metrics.height());
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p.drawText(text_rect, Qt::AlignHCenter, tr("Click here to add some music"));
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}
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}
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void LibraryView::mouseReleaseEvent(QMouseEvent* e) {
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QTreeView::mouseReleaseEvent(e);
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if (total_song_count_ == 0) {
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emit ShowConfigDialog();
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}
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}
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bool LibraryView::RecursivelyExpand(const QModelIndex& index, int* count) {
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int children = model()->rowCount(index);
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if (*count + children > kRowsToShow)
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return false;
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expand(index);
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*count += children;
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for (int i=0 ; i<children ; ++i) {
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if (!RecursivelyExpand(model()->index(i, 0, index), count))
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return false;
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}
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return true;
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}
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void LibraryView::ItemExpanded(const QModelIndex& index) {
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if (model()->rowCount(index) == 1)
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expand(model()->index(0, 0, index));
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}
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