307 lines
13 KiB
C++
307 lines
13 KiB
C++
#include "panels/DatasetListPanel.hpp"
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#include <QAbstractItemView>
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#include <QApplication>
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#include <QColor>
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#include <QHash>
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#include <QKeyEvent>
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#include <QListWidget>
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#include <QListWidgetItem>
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#include <QMouseEvent>
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#include <QObject>
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#include <QPainter>
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#include <QPainterPath>
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#include <QString>
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#include <QStyle>
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#include <QStyledItemDelegate>
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#include <QTreeWidget>
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#include <QTreeWidgetItem>
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#include <QTreeWidgetItemIterator>
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#include "Theme.hpp"
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namespace geopro::app {
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namespace {
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QString humanSize(long long b) {
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if (b < 1024) return QStringLiteral("%1 B").arg(b);
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const double kb = b / 1024.0;
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if (kb < 1024.0) return QStringLiteral("%1 KB").arg(kb, 0, 'f', 1);
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return QStringLiteral("%1 MB").arg(kb / 1024.0, 0, 'f', 1);
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}
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// 数据/文件列表卡片委托：标题+元信息双行、悬停/选中圆角高亮 + 选中左 2px 强调竖条（规范§6.2）。
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// 特殊行（加载更多 / 占位提示）退回为居中纯文本，不画卡片。
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class DatasetCardDelegate : public QStyledItemDelegate {
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public:
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using QStyledItemDelegate::QStyledItemDelegate;
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QSize sizeHint(const QStyleOptionViewItem&, const QModelIndex& idx) const override {
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const bool special =
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idx.data(kDsLoadMoreRole).toBool() || !(idx.flags() & Qt::ItemIsSelectable);
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return QSize(0, special ? 34 : 52);
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}
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void paint(QPainter* p, const QStyleOptionViewItem& opt, const QModelIndex& idx) const override {
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p->save();
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p->setRenderHint(QPainter::Antialiasing, true);
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const QString disp = idx.data(Qt::DisplayRole).toString();
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// 「加载更多」：居中强调色文本（hover 时加底）。
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if (idx.data(kDsLoadMoreRole).toBool()) {
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if (opt.state & QStyle::State_MouseOver) {
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QPainterPath bgp;
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bgp.addRoundedRect(opt.rect.adjusted(4, 2, -4, -2), 6, 6);
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p->fillPath(bgp, geopro::app::tokenColor("bg/hover"));
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}
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p->setPen(geopro::app::tokenColor("accent/primary"));
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p->drawText(opt.rect, Qt::AlignCenter, disp);
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p->restore();
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return;
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}
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// 占位提示行（不可选）：居中淡色文本。
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if (!(idx.flags() & Qt::ItemIsSelectable)) {
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p->setPen(geopro::app::tokenColor("text/disabled"));
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p->drawText(opt.rect, Qt::AlignCenter, disp);
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p->restore();
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return;
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}
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// 卡片
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const QRect r = opt.rect.adjusted(4, 2, -4, -2);
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const bool selected = opt.state & QStyle::State_Selected;
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const bool hover = opt.state & QStyle::State_MouseOver;
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if (selected || hover) {
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QPainterPath path;
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path.addRoundedRect(r, 6, 6);
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p->fillPath(path, geopro::app::tokenColor(selected ? "bg/selected" : "bg/hover"));
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}
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if (selected) { // 左 2px 强调竖条（规范§6.2）
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p->fillRect(QRect(r.left(), r.top() + 4, 2, r.height() - 8),
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geopro::app::tokenColor("accent/primary"));
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}
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// 可勾选项：左侧画复选框(用当前 style 的指示器),文本整体右移。
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int textLeftPad = 14;
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const bool checkable = (idx.flags() & Qt::ItemIsUserCheckable);
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if (checkable) {
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const int box = 16;
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QRect checkRect(r.left() + 12, r.top() + (r.height() - box) / 2, box, box);
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const auto cs = static_cast<Qt::CheckState>(idx.data(Qt::CheckStateRole).toInt());
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QStyleOptionViewItem o(opt);
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o.rect = checkRect;
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o.state &= ~QStyle::State_HasFocus;
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o.state |= (cs == Qt::Checked ? QStyle::State_On : QStyle::State_Off);
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const QWidget* w = opt.widget;
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QStyle* st = w ? w->style() : QApplication::style();
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st->drawPrimitive(QStyle::PE_IndicatorItemViewItemCheck, &o, p, w);
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textLeftPad = 12 + box + 8; // 复选框右侧留白后再放文本
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}
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QString title = disp, meta;
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const int nl = disp.indexOf(QLatin1Char('\n'));
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if (nl >= 0) {
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title = disp.left(nl);
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meta = disp.mid(nl + 1);
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}
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const QRect textR = r.adjusted(textLeftPad, 6, -12, -6);
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// 标题
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QFont tf = opt.font;
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tf.setPixelSize(geopro::app::scaledPx(13));
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p->setFont(tf);
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p->setPen(geopro::app::tokenColor("text/primary"));
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const QRect titleR(textR.left(), textR.top(), textR.width(), textR.height() / 2);
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p->drawText(titleR, Qt::AlignLeft | Qt::AlignVCenter,
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p->fontMetrics().elidedText(title, Qt::ElideRight, titleR.width()));
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// 元信息
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if (!meta.isEmpty()) {
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QFont mf = opt.font;
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mf.setPixelSize(geopro::app::scaledPx(11));
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p->setFont(mf);
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p->setPen(geopro::app::tokenColor("text/tertiary"));
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const QRect metaR(textR.left(), textR.center().y() + 1, textR.width(),
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textR.height() / 2);
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p->drawText(metaR, Qt::AlignLeft | Qt::AlignVCenter,
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p->fontMetrics().elidedText(meta, Qt::ElideRight, metaR.width()));
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}
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p->restore();
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}
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bool editorEvent(QEvent* ev, QAbstractItemModel* model, const QStyleOptionViewItem& opt,
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const QModelIndex& idx) override {
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if (!(idx.flags() & Qt::ItemIsUserCheckable))
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return QStyledItemDelegate::editorEvent(ev, model, opt, idx);
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const QRect r = opt.rect.adjusted(4, 2, -4, -2);
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const int box = 16;
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// 命中区放宽到复选框左侧整段(含一点文本起始),便于点击。
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const QRect hit(r.left(), r.top(), 12 + box + 8, r.height());
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auto toggle = [&]() {
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const auto cur = static_cast<Qt::CheckState>(idx.data(Qt::CheckStateRole).toInt());
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model->setData(idx, cur == Qt::Checked ? Qt::Unchecked : Qt::Checked, Qt::CheckStateRole);
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};
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if (ev->type() == QEvent::MouseButtonRelease) {
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auto* me = static_cast<QMouseEvent*>(ev);
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if (me->button() == Qt::LeftButton && hit.contains(me->pos())) {
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toggle();
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return true;
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}
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} else if (ev->type() == QEvent::KeyPress) {
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auto* ke = static_cast<QKeyEvent*>(ev);
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if (ke->key() == Qt::Key_Space || ke->key() == Qt::Key_Select) {
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toggle();
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return true;
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}
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}
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return QStyledItemDelegate::editorEvent(ev, model, opt, idx);
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}
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};
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} // namespace
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namespace {
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// 建一条数据集树项（不挂载）：列0 文本 = dsName +「创建时间 · 类型名」，data 存各角色。
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QTreeWidgetItem* makeDatasetItem(const geopro::data::DsRow& d, const QString& tmObjectId) {
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QString text = QString::fromStdString(d.dsName);
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QString sub = QString::fromStdString(d.createTime); // 名称下先创建时间
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if (!d.typeName.empty())
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sub += QStringLiteral(" · %1").arg(QString::fromStdString(d.typeName)); // 再跟类型
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if (!sub.isEmpty()) text += QStringLiteral("\n%1").arg(sub);
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auto* item = new QTreeWidgetItem();
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item->setText(0, text);
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item->setData(0, kDsIdRole, QString::fromStdString(d.id));
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item->setData(0, kDsDdTypeRole, QString::fromStdString(d.ddCode));
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item->setData(0, kDsDdCodeRole, QString::fromStdString(d.ddCode));
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item->setData(0, kDsNameRole, QString::fromStdString(d.dsName));
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item->setData(0, kDsTypeNameRole, QString::fromStdString(d.typeName));
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item->setData(0, kDsCreateTimeRole, QString::fromStdString(d.createTime));
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item->setData(0, kDsTmObjectIdRole, tmObjectId); // 所属 TM 对象 id（白化 structParentId）
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// 单击 tip：显示数据集主要属性（名称 / 类型 / 创建时间），对齐菜单文档「tip显示ds的主要属性」。
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QString tip = QStringLiteral("名称：%1").arg(QString::fromStdString(d.dsName));
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if (!d.typeName.empty()) tip += QStringLiteral("\n类型：%1").arg(QString::fromStdString(d.typeName));
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if (!d.createTime.empty())
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tip += QStringLiteral("\n创建时间：%1").arg(QString::fromStdString(d.createTime));
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item->setToolTip(0, tip);
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return item;
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}
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} // namespace
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void populateDatasetList(QTreeWidget* tree, const std::vector<geopro::data::DsRow>& rows, bool append,
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const QString& tmObjectId) {
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if (!tree) return;
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if (!append) tree->clear();
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// id→已在树中的项：!append 时为空；append（分页）时含已加载行，使新行能挂到既有父下。
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QHash<QString, QTreeWidgetItem*> byId;
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for (QTreeWidgetItemIterator it(tree); *it; ++it) {
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const QString id = (*it)->data(0, kDsIdRole).toString();
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if (!id.isEmpty()) byId.insert(id, *it);
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}
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// 第一遍：本批全部建项（不挂载）并登记 id，使同批内的父子也能互相找到。
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std::vector<QTreeWidgetItem*> batch;
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batch.reserve(rows.size());
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for (const auto& d : rows) {
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auto* item = makeDatasetItem(d, tmObjectId);
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byId.insert(QString::fromStdString(d.id), item);
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batch.push_back(item);
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}
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// 第二遍：按 parentId 挂载。父在集合内→作其子；否则（父是源文件节点/不在本批）→作树根。
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for (std::size_t i = 0; i < rows.size(); ++i) {
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const QString pid = QString::fromStdString(rows[i].parentId);
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QTreeWidgetItem* parent = pid.isEmpty() ? nullptr : byId.value(pid, nullptr);
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if (parent && parent != batch[i])
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parent->addChild(batch[i]);
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else
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tree->addTopLevelItem(batch[i]);
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}
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// 默认折叠（对齐原版：仅显源数据根行，派生数据收在展开箭头内）。
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}
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void populateFileList(QListWidget* list, const std::vector<geopro::data::DsRow>& rows, bool append) {
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if (!list) return;
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if (!append) list->clear();
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if (!append && rows.empty()) {
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auto* hint = new QListWidgetItem(QStringLiteral("（暂无文件）"), list);
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hint->setFlags(Qt::NoItemFlags);
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hint->setTextAlignment(Qt::AlignCenter);
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return;
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}
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for (const auto& d : rows) {
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const QString fname =
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d.fileName.empty() ? QString::fromStdString(d.dsName) : QString::fromStdString(d.fileName);
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QString sub = QString::fromStdString(d.createTime); // 名称下先创建时间
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sub += QStringLiteral(" · %1").arg(humanSize(d.fileSize)); // 再跟大小
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const QString text = fname + QStringLiteral("\n%1").arg(sub);
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auto* item = new QListWidgetItem(text, list);
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item->setData(kDsIdRole, QString::fromStdString(d.id));
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item->setData(kDsFileUrlRole, QString::fromStdString(d.fileUrl));
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}
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}
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void applyDatasetCardDelegate(QAbstractItemView* view) {
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if (!view) return;
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view->setItemDelegate(new DatasetCardDelegate(view));
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view->setMouseTracking(true); // 让委托收到 hover 状态
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if (auto* list = qobject_cast<QListWidget*>(view)) list->setSpacing(0); // 卡间距由委托内边距控制
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QObject::connect(&ThemeManager::instance(), &ThemeManager::changed, view,
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[view]() { view->viewport()->update(); });
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}
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QStringList collectDatasetTypeNames(QTreeWidget* tree) {
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QStringList types;
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if (!tree) return types;
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QSet<QString> seen;
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for (QTreeWidgetItemIterator it(tree); *it; ++it) {
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if ((*it)->data(0, kDsLoadMoreRole).toBool()) continue;
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const QString t = (*it)->data(0, kDsTypeNameRole).toString();
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if (t.isEmpty() || seen.contains(t)) continue;
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seen.insert(t);
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types << t;
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}
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return types;
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}
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namespace {
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// 解析创建时间字符串为日期（容忍 "yyyy-MM-dd HH:mm:ss" / "yyyy-MM-dd" / "yyyy/MM/dd"）。
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QDate parseRowDate(const QString& s) {
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if (s.isEmpty()) return {};
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const QString d = s.left(10);
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for (const char* fmt : {"yyyy-MM-dd", "yyyy/MM/dd"}) {
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QDate v = QDate::fromString(d, QString::fromLatin1(fmt));
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if (v.isValid()) return v;
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}
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return {};
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}
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// 递归判定项是否匹配（类型在集合内 且 创建日期 >= minDate）。
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bool rowMatches(QTreeWidgetItem* item, const QSet<QString>& visibleTypes, const QDate& minDate) {
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const QString t = item->data(0, kDsTypeNameRole).toString();
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if (!t.isEmpty() && !visibleTypes.contains(t)) return false;
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if (minDate.isValid()) {
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const QDate d = parseRowDate(item->data(0, kDsCreateTimeRole).toString());
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if (d.isValid() && d < minDate) return false;
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}
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return true;
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}
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// 返回该项（或其任一后代）是否可见；据此 setHidden。父项只要有可见后代即保留。
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bool applyFilterRec(QTreeWidgetItem* item, const QSet<QString>& visibleTypes, const QDate& minDate) {
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if (item->data(0, kDsLoadMoreRole).toBool()) return true; // 「加载更多」行恒显
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bool anyChildVisible = false;
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for (int i = 0; i < item->childCount(); ++i)
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anyChildVisible |= applyFilterRec(item->child(i), visibleTypes, minDate);
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const bool selfMatch = rowMatches(item, visibleTypes, minDate);
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const bool visible = selfMatch || anyChildVisible;
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item->setHidden(!visible);
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return visible;
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}
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} // namespace
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void applyDatasetFilter(QTreeWidget* tree, const QSet<QString>& visibleTypes, const QDate& minDate) {
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if (!tree) return;
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for (int i = 0; i < tree->topLevelItemCount(); ++i)
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applyFilterRec(tree->topLevelItem(i), visibleTypes, minDate);
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}
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} // namespace geopro::app
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