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Cabana: Reimplement HistoryLog::sizeHintForColumn to improve performance (#26393)

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Reimplement sizeHintForColumn to improve performance
This commit is contained in:
Dean Lee
2022-11-07 03:06:10 +08:00
committed by GitHub
parent 3dc5dbf103
commit cdcc0fb369
2 changed files with 7 additions and 2 deletions
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tools/cabana/historylog.cc
+5 -1
View File
@@ -1,7 +1,6 @@
#include "tools/cabana/historylog.h"
#include <QFontDatabase>
#include <QVBoxLayout>
// HistoryLogModel
@@ -89,3 +88,8 @@ HistoryLog::HistoryLog(QWidget *parent) : QTableView(parent) {
setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
setStyleSheet("QTableView::item { border:0px; padding-left:5px; padding-right:5px; }");
}
int HistoryLog::sizeHintForColumn(int column) const {
// sizeHintForColumn is only called for column 0 (ResizeToContents)
return itemDelegate()->sizeHint(viewOptions(), model->index(0, 0)).width() + 1; // +1 for grid
}
tools/cabana/historylog.h
+2 -1
View File
@@ -9,7 +9,7 @@
class HeaderView : public QHeaderView {
public:
HeaderView(Qt::Orientation orientation, QWidget *parent = nullptr) : QHeaderView(orientation, parent) {}
QSize sectionSizeFromContents(int logicalIndex) const;
QSize sectionSizeFromContents(int logicalIndex) const override;
};
class HistoryLogModel : public QAbstractTableModel {
@@ -40,5 +40,6 @@ public:
void setMessage(const QString &message_id) { model->setMessage(message_id); }
void updateState() { model->updateState(); }
private:
int sizeHintForColumn(int column) const override;
HistoryLogModel *model;
};