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FilesListWidget.cpp
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FilesListWidget.cpp
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#include "FilesListWidget.h"
#include "BasicMainWindow.h"
#include <QDebug>
#include <QPainter>
#include <QStyledItemDelegate>
#include <map>
namespace {
class ItemDelegate : public QStyledItemDelegate {
private:
struct Badge {
QString text;
QColor color;
QIcon icon;
Badge() = default;
Badge(QString const &text, QColor const &color, QIcon const &icon)
: text(text)
, color(color)
, icon(icon)
{
}
};
std::map<QString, Badge> badge_map;
public:
ItemDelegate(QObject *parent)
: QStyledItemDelegate(parent)
{
badge_map["(chg) "] = Badge("Chg", QColor(240, 240, 140), QIcon(":/image/chg.svg"));
badge_map["(add) "] = Badge("Add", QColor(180, 240, 180), QIcon(":/image/add.svg"));
badge_map["(del) "] = Badge("Del", QColor(255, 200, 200), QIcon(":/image/del.svg"));
badge_map["(ren) "] = Badge("Ren", QColor(200, 210, 255), QIcon(":/image/ren.svg"));
badge_map["(cpy) "] = Badge("Cpy", QColor(200, 210, 255), QIcon(":/image/cpy.svg"));
}
void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override
{
QStyleOptionViewItem o = option;
QStyledItemDelegate::initStyleOption(&o, index);
QString header = index.data(BasicMainWindow::HeaderRole).toString();
int x = o.rect.x();
int y = o.rect.y();
int h = o.rect.height();
int w = 2 + h + painter->fontMetrics().size(0, " Aaa").width() + 2;
// draw badge
Badge badge;
if (header == "(unmerged) ") {
badge = Badge("Unmerged", QColor(255, 80, 160), QIcon());
w = 4 + painter->fontMetrics().size(0, badge.text).width() + 4;
}
{
QColor color;
auto it = badge_map.find(header);
if (it != badge_map.end()) {
badge = it->second;
color = badge.color;
} else {
color = badge.color.isValid() ? badge.color : QColor(160, 160, 160);
}
{
QRect r(x, y, w, h);
QRect r_icon = badge.icon.isNull() ? QRect() : QRect(x + 2, y + 1, h - 2, h - 2).adjusted(2, 2, -2, -2);
QRect r_badge = r.adjusted(1, 1, -2, -2);
QRect r_text = r.adjusted(r_icon.width(), 0, 0, 0);
painter->setPen(Qt::NoPen);
painter->setBrush(QBrush(color.darker(130)));
painter->drawRoundedRect(r_badge.translated(1, 1), 3, 3);
painter->setBrush(QBrush(color));
painter->drawRoundedRect(r_badge, 3, 3);
if (!badge.icon.isNull()) {
painter->save();
painter->setOpacity(0.5);
badge.icon.paint(painter, r_icon);
painter->restore();
}
painter->setPen(Qt::black);
QTextOption to;
to.setAlignment(Qt::AlignCenter | Qt::AlignVCenter);
if (badge.text.isEmpty()) {
badge.text = "?";
}
painter->drawText(r_text, badge.text, to);
}
}
o.rect.adjust(w, 0, 0, 0);
// draw text
option.widget->style()->drawControl(QStyle::CE_ItemViewItem, &o, painter, option.widget);
}
};
}
FilesListWidget::FilesListWidget(QWidget *parent)
: QListWidget(parent)
{
item_delegate = new ItemDelegate(this);
setItemDelegate(item_delegate);
}

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FilesListWidget.cpp (2 KB)

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