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cabana: use QStaticText to boost rending performance (#29900)

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use QStaticText to boost rending performance
old-commit-hash: 82452ec66b0dd4e48365e794ac70ce22003edaec
This commit is contained in:
Dean Lee
2023-09-14 10:00:00 +08:00
committed by GitHub
parent 370d912053
commit a1cb457f20
4 changed files with 30 additions and 8 deletions
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tools/cabana/binaryview.cc
+13 -4
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@@ -280,7 +280,7 @@ void BinaryViewModel::refresh() {
updateState();
}
void BinaryViewModel::updateItem(int row, int col, const QString &val, const QColor &color) {
void BinaryViewModel::updateItem(int row, int col, uint8_t val, const QColor &color) {
auto &item = items[row * column_count + col];
if (item.val != val || item.bg_color != color) {
item.val = val;
@@ -307,7 +307,7 @@ void BinaryViewModel::updateState() {
for (int i = 0; i < binary.size(); ++i) {
for (int j = 0; j < 8; ++j) {
auto &item = items[i * column_count + j];
QString val = ((binary[i] >> (7 - j)) & 1) != 0 ? "1" : "0";
int val = ((binary[i] >> (7 - j)) & 1) != 0 ? 1 : 0;
// Bit update frequency based highlighting
double offset = !item.sigs.empty() ? 50 : 0;
auto n = last_msg.bit_change_counts[i][7 - j];
@@ -317,7 +317,7 @@ void BinaryViewModel::updateState() {
color.setAlpha(alpha);
updateItem(i, j, val, color);
}
updateItem(i, 8, toHex(binary[i]), last_msg.colors[i]);
updateItem(i, 8, binary[i], last_msg.colors[i]);
}
}
@@ -348,6 +348,13 @@ BinaryItemDelegate::BinaryItemDelegate(QObject *parent) : QStyledItemDelegate(pa
small_font.setPixelSize(8);
hex_font = QFontDatabase::systemFont(QFontDatabase::FixedFont);
hex_font.setBold(true);
bin_text_table[0].setText("0");
bin_text_table[1].setText("1");
for (int i = 0; i < 256; ++i) {
hex_text_table[i].setText(QStringLiteral("%1").arg(i, 2, 16, QLatin1Char('0')).toUpper());
hex_text_table[i].prepare({}, hex_font);
}
}
bool BinaryItemDelegate::hasSignal(const QModelIndex &index, int dx, int dy, const cabana::Signal *sig) const {
@@ -392,7 +399,9 @@ void BinaryItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &op
} else if (!item->valid) {
painter->fillRect(option.rect, QBrush(Qt::darkGray, Qt::BDiagPattern));
}
painter->drawText(option.rect, Qt::AlignCenter, item->val);
if (item->valid) {
utils::drawStaticText(painter, option.rect, index.column() == 8 ? hex_text_table[item->val] : bin_text_table[item->val]);
}
if (item->is_msb || item->is_lsb) {
painter->setFont(small_font);
painter->drawText(option.rect.adjusted(8, 0, -8, -3), Qt::AlignRight | Qt::AlignBottom, item->is_msb ? "M" : "L");