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Date dividers between messages from different dates

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This commit is contained in:
Blue 2021-09-22 01:17:43 +03:00
parent 5f925217fc
commit 3f09b8f838
Signed by untrusted user: blue
GPG key ID: 9B203B252A63EE38
5 changed files with 78 additions and 4 deletions
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62
ui/widgets/messageline/feedview.cpp
View file

@ -29,6 +29,7 @@
constexpr int maxMessageHeight = 10000;
constexpr int approximateSingleMessageHeight = 20;
constexpr int progressSize = 70;
constexpr int dateDeviderMargin = 10;
const std::set<int> FeedView::geometryChangingRoles = {
Models::MessageFeed::Attach,
@ -46,7 +47,9 @@ FeedView::FeedView(QWidget* parent):
specialModel(false),
clearWidgetsMode(false),
modelState(Models::MessageFeed::complete),
progress()
progress(),
dividerFont(),
dividerMetrics(dividerFont)
{
horizontalScrollBar()->setRange(0, 0);
verticalScrollBar()->setSingleStep(approximateSingleMessageHeight);
@ -56,6 +59,15 @@ FeedView::FeedView(QWidget* parent):
progress.setParent(viewport());
progress.resize(progressSize, progressSize);
dividerFont = getFont();
dividerFont.setBold(true);
float ndps = dividerFont.pointSizeF();
if (ndps != -1) {
dividerFont.setPointSizeF(ndps * 1.2);
} else {
dividerFont.setPointSize(dividerFont.pointSize() + 2);
}
}
FeedView::~FeedView()
@ -187,8 +199,16 @@ void FeedView::updateGeometries()
hints.clear();
uint32_t previousOffset = 0;
QDateTime lastDate;
for (int i = 0, size = m->rowCount(); i < size; ++i) {
QModelIndex index = m->index(i, 0, rootIndex());
QDateTime currentDate = index.data(Models::MessageFeed::Date).toDateTime();
if (i > 0) {
if (currentDate.daysTo(lastDate) > 0) {
previousOffset += dividerMetrics.height() + dateDeviderMargin * 2;
}
}
lastDate = currentDate;
int height = itemDelegate(index)->sizeHint(option, index).height();
hints.emplace_back(Hint({
false,
@ -222,8 +242,16 @@ bool FeedView::tryToCalculateGeometriesWithNoScrollbars(const QStyleOptionViewIt
{
uint32_t previousOffset = 0;
bool success = true;
QDateTime lastDate;
for (int i = 0, size = m->rowCount(); i < size; ++i) {
QModelIndex index = m->index(i, 0, rootIndex());
QDateTime currentDate = index.data(Models::MessageFeed::Date).toDateTime();
if (i > 0) {
if (currentDate.daysTo(lastDate) > 0) {
previousOffset += dateDeviderMargin * 2 + dividerMetrics.height();
}
}
lastDate = currentDate;
int height = itemDelegate(index)->sizeHint(option, index).height();
if (previousOffset + height > totalHeight) {
@ -266,6 +294,7 @@ void FeedView::paintEvent(QPaintEvent* event)
toRener.emplace_back(m->index(i, 0, rootIndex()));
}
if (y1 > relativeY1) {
inZone = false;
break;
}
}
@ -282,11 +311,32 @@ void FeedView::paintEvent(QPaintEvent* event)
}
}
QDateTime lastDate;
bool first = true;
for (const QModelIndex& index : toRener) {
QDateTime currentDate = index.data(Models::MessageFeed::Date).toDateTime();
option.rect = visualRect(index);
if (first) {
int ind = index.row() - 1;
if (ind > 0) {
QDateTime underDate = m->index(ind, 0, rootIndex()).data(Models::MessageFeed::Date).toDateTime();
if (currentDate.daysTo(underDate) > 0) {
drawDateDevider(option.rect.bottom(), underDate, painter);
}
}
first = false;
}
bool mouseOver = option.rect.contains(cursor) && vp->rect().contains(cursor);
option.state.setFlag(QStyle::State_MouseOver, mouseOver);
itemDelegate(index)->paint(&painter, option, index);
if (!lastDate.isNull() && currentDate.daysTo(lastDate) > 0) {
drawDateDevider(option.rect.bottom(), lastDate, painter);
}
lastDate = currentDate;
}
if (!lastDate.isNull() && inZone) { //if after drawing all messages there is still space
drawDateDevider(option.rect.bottom(), lastDate, painter);
}
if (clearWidgetsMode && specialDelegate) {
@ -300,6 +350,16 @@ void FeedView::paintEvent(QPaintEvent* event)
}
}
void FeedView::drawDateDevider(int top, const QDateTime& date, QPainter& painter)
{
int divisionHeight = dateDeviderMargin * 2 + dividerMetrics.height();
QRect r(QPoint(0, top), QSize(viewport()->width(), divisionHeight));
painter.save();
painter.setFont(dividerFont);
painter.drawText(r, Qt::AlignCenter, date.toString("d MMMM"));
painter.restore();
}
void FeedView::verticalScrollbarValueChanged(int value)
{
vo = verticalScrollBar()->maximum() - value;