diff options
Diffstat (limited to 'src/threadlistview.cpp')
| -rw-r--r-- | src/threadlistview.cpp | 141 |
1 files changed, 28 insertions, 113 deletions
diff --git a/src/threadlistview.cpp b/src/threadlistview.cpp index ef80e09..5a3ce77 100644 --- a/src/threadlistview.cpp +++ b/src/threadlistview.cpp @@ -18,123 +18,38 @@ #include "threadlistview.h" -#include "tagchip.h" +#include "carddelegate.h" #include "threadlistmodel.h" -#include <QPaintEvent> -#include <QPainter> -#include <QScrollBar> +#include <QMouseEvent> -void ThreadListView::paintEvent(QPaintEvent *event) +void ThreadListView::mousePressEvent(QMouseEvent *event) { - QTableView::paintEvent(event); - - if (!model()) - return; - - QPainter painter(viewport()); - - // Two fonts, deliberately. The row's own font fixes where the text band - // ends, and the pills are drawn a size smaller: at the same size they read - // as a second row of content competing with the subject, rather than as - // annotation beneath it. - const QFontMetrics rowMetrics(font()); - const QFont pillFont = SubjectDelegate::pillFont(font()); - const QFontMetrics metrics(pillFont); - painter.setFont(pillFont); - - // Only the rows actually on screen. Walking the whole model would paint - // thousands of strips outside the viewport on a large query. - const int first = rowAt(0); - const int last = rowAt(viewport()->height() - 1); - const int lastRow = last >= 0 ? last : model()->rowCount() - 1; - - for (int row = qMax(0, first); row <= lastRow; ++row) { - const QModelIndex index = - model()->index(row, ThreadListModel::SubjectColumn); - - const int rowTop = rowViewportPosition(row); - const int height = rowHeight(row); - if (height <= 0) - continue; - - // The strip's band, filled to match the row before anything is drawn - // on it. - // - // A QTableView paints alternating colours and the selection PER CELL, - // so nothing paints the width to the right of the last column, and - // nothing paints the band at all where a column does not reach. Left - // unfilled, an alternate-coloured or selected row shows the viewport - // background in a strip across its lower half. Filled for every - // visible row, not only tagged ones, since an untagged row has the - // same band to account for. - // Starting at the date column, NOT at the viewport edge. The two - // leading columns hold the attachment and flag glyphs, centred in the - // full row height, so a band drawn over them cuts those glyphs in half. - const int bandLeft = - columnViewportPosition(ThreadListModel::DateColumn); - const QRect band(bandLeft, rowTop + SubjectDelegate::kRowPadding - + rowMetrics.height(), - viewport()->width() - bandLeft, - height - SubjectDelegate::kRowPadding - - rowMetrics.height()); - - // The model's own row colour wins where it has one: a deleted or spam - // thread fills its cells with crimson or orange, and painting the base - // colour across the band beneath them would cut the row in half. - const QVariant background = index.data(Qt::BackgroundRole); - - if (background.isValid()) - painter.fillRect(band, background.value<QBrush>()); - else if (selectionModel() && selectionModel()->isRowSelected(row)) - painter.fillRect(band, palette().brush(QPalette::Highlight)); - else if (alternatingRowColors() && (row % 2)) - painter.fillRect(band, palette().brush(QPalette::AlternateBase)); - else - painter.fillRect(band, palette().brush(QPalette::Base)); - - const QStringList tags = - index.data(ThreadListModel::PillTagsRole).toStringList(); - if (tags.isEmpty()) - continue; - - const QVariantList colours = - index.data(ThreadListModel::PillColoursRole).toList(); - - // The band the cells leave free, below the text they draw in the - // upper one. Measured from SubjectDelegate by both sides, so neither - // can drift into the other's half. The row's own font metrics set the - // text band; the strip's smaller font must not be used for it, or the - // pills ride up over the date and sender. - const int top = rowTop + SubjectDelegate::kRowPadding - + rowMetrics.height() + TagChip::kSpacing; - - // Aligned with the first text column rather than the viewport edge: - // the two leading columns are narrow markers for the attachment and - // flag glyphs, and a strip starting at x=0 paints straight over them. - // Indented past the date column's own left edge rather than flush with - // it: a chip starting exactly where the column does reads as part of - // the column rather than as a strip laid under the row. - int x = columnViewportPosition(ThreadListModel::DateColumn) - + TagChip::kSpacing * 2; - const int available = viewport()->width() - TagChip::kSpacing; - - for (int i = 0; i < tags.size(); ++i) { - const QSize size = TagChip::sizeFor(metrics, tags.at(i)); - - // Stop rather than wrap or elide. A row that grew to fit its tags - // would break the uniform height the list depends on, and half a - // chip reads as a rendering fault. - if (x + size.width() > available) - break; - - const QColor colour = i < colours.size() - ? colours.at(i).value<QColor>() - : QColor(0x55, 0x55, 0x5f); - - TagChip::paint(&painter, QRect(x, top, size.width(), size.height()), - tags.at(i), colour); - x += size.width() + TagChip::kSpacing; + const QModelIndex index = indexAt(event->pos()); + + // The reply count IS the expander. Anything outside its rect selects the + // card and opens it, which is what the rest of the card is for. + if (event->button() == Qt::LeftButton && index.isValid() + && index.data(ThreadListModel::ReplyCountRole).toInt() > 0) { + + QStyleOptionViewItem option; + initViewItemOption(&option); + option.rect = visualRect(index); + // State_Open decides which way the glyph points, and the rect is the + // same either way, but pass it so the layout sees the true state. + if (isExpanded(index)) + option.state |= QStyle::State_Open; + + if (CardDelegate::expanderRectFor(option, index) + .contains(event->pos())) { + setExpanded(index, !isExpanded(index)); + // Swallowed, so expanding does not also load the thread into the + // message pane: it is a request to see the thread's shape, not to + // read it. + event->accept(); + return; } } + + QTreeView::mousePressEvent(event); } |