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Dockable font list window with extended search filter.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| #include <QClipboard> | ||
|
|
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| #include "FontList.h" | ||
| #include "FontCache.h" | ||
| #include "printutils.h" | ||
|
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| FontSortFilterProxyModel::FontSortFilterProxyModel(QObject *parent) : QSortFilterProxyModel(parent) | ||
| { | ||
| } | ||
|
|
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| void FontSortFilterProxyModel::clearFilter() | ||
| { | ||
| filterHashes.clear(); | ||
| invalidateFilter(); | ||
| } | ||
|
|
||
| void FontSortFilterProxyModel::setFilterHashes(const std::vector<uint32_t>& hashes) | ||
| { | ||
| filterHashes.clear(); | ||
| for (const auto hash : hashes) { | ||
| filterHashes.insert(QString::number(hash, 16)); | ||
| } | ||
| invalidateFilter(); | ||
| } | ||
|
|
||
| bool FontSortFilterProxyModel::filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const | ||
| { | ||
| if (filterHashes.empty()) { | ||
| return true; | ||
| } | ||
|
|
||
| QModelIndex idx = sourceModel()->index(sourceRow, FontList::COL_HASH, sourceParent); | ||
| const auto &data = sourceModel()->data(idx); | ||
| const bool result = filterHashes.contains(data.toString()); | ||
| return result; | ||
| } | ||
|
|
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| FontList::FontList(QWidget *parent) : QWidget(parent), model(nullptr), proxy(nullptr) | ||
| { | ||
| setupUi(this); | ||
| } | ||
|
|
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| void FontList::resizeEvent(QResizeEvent *event) | ||
| { | ||
| QWidget::resizeEvent(event); | ||
| } | ||
|
|
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| void FontList::on_copyButton_clicked() | ||
| { | ||
| font_selected(selection); | ||
|
|
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| QClipboard *clipboard = QApplication::clipboard(); | ||
| clipboard->setText(selection); | ||
| } | ||
|
|
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| void FontList::on_filterLineEdit_textChanged(const QString& text) | ||
| { | ||
| proxy->setFilterWildcard(text); | ||
| groupBox->setTitle(QString("Filter (%1 fonts found)").arg(proxy->rowCount())); | ||
| } | ||
|
|
||
| void FontList::on_charsLineEdit_textChanged(const QString& text) | ||
| { | ||
| if (text.length() == 0) { | ||
| proxy->clearFilter(); | ||
| } else { | ||
| const auto hashes = FontCache::instance()->filter(text.toStdU32String()); | ||
| proxy->setFilterHashes(hashes); | ||
| } | ||
| groupBox->setTitle(QString("Filter (%1 fonts found)").arg(proxy->rowCount())); | ||
| } | ||
|
|
||
| void FontList::selection_changed(const QItemSelection& current, const QItemSelection&) | ||
| { | ||
| if (current.count() == 0) { | ||
| copyButton->setEnabled(false); | ||
| tableView->setDragText(""); | ||
| return; | ||
| } | ||
|
|
||
| const QModelIndex& idx = proxy->mapToSource(current.indexes().at(0)); | ||
| const QString name = model->item(idx.row(), COL_FONT_NAME)->text(); | ||
| const QString style = model->item(idx.row(), COL_FONT_STYLE)->text(); | ||
| selection = QString("\"%1:style=%2\"").arg(quote(name)).arg(quote(style)); | ||
| copyButton->setEnabled(true); | ||
| tableView->setDragText(selection); | ||
| } | ||
|
|
||
| void FontList::update_font_list() | ||
| { | ||
| copyButton->setEnabled(false); | ||
|
|
||
| if (proxy) { | ||
| delete proxy; | ||
| proxy = nullptr; | ||
| } | ||
| if (model) { | ||
| delete model; | ||
| model = nullptr; | ||
| } | ||
|
|
||
| FontInfoList *list = FontCache::instance()->list_fonts(); | ||
| model = new QStandardItemModel(list->size(), 4, this); | ||
| model->setHorizontalHeaderItem(COL_FONT_NAME, new QStandardItem(_("Font name"))); | ||
| model->setHorizontalHeaderItem(COL_FONT_STYLE, new QStandardItem(_("Font style"))); | ||
| model->setHorizontalHeaderItem(COL_FILE_NAME, new QStandardItem(_("Filename"))); | ||
| model->setHorizontalHeaderItem(COL_HASH, new QStandardItem(_("Hash"))); | ||
|
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||
| int idx = 0; | ||
| for (auto it = list->begin(); it != list->end(); it++, idx++) { | ||
| FontInfo font_info = (*it); | ||
| auto *family = new QStandardItem(QString::fromStdString(font_info.get_family())); | ||
| family->setEditable(false); | ||
| model->setItem(idx, COL_FONT_NAME, family); | ||
| auto *style = new QStandardItem(QString::fromStdString(font_info.get_style())); | ||
| style->setEditable(false); | ||
| model->setItem(idx, COL_FONT_STYLE, style); | ||
| auto *file = new QStandardItem(QString::fromStdString(font_info.get_file())); | ||
| file->setEditable(false); | ||
| model->setItem(idx, COL_FILE_NAME, file); | ||
| auto *hash = new QStandardItem(QString::number(font_info.get_hash(), 16)); | ||
| hash->setEditable(false); | ||
| model->setItem(idx, COL_HASH, hash); | ||
| } | ||
|
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| proxy = new FontSortFilterProxyModel(this); | ||
| proxy->setSourceModel(model); | ||
| proxy->setFilterCaseSensitivity(Qt::CaseInsensitive); | ||
| groupBox->setTitle(QString("Filter (%1 fonts found)").arg(proxy->rowCount())); | ||
|
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| this->tableView->setModel(proxy); | ||
| this->tableView->setSelectionMode(QAbstractItemView::SingleSelection); | ||
| this->tableView->sortByColumn(COL_FONT_NAME, Qt::AscendingOrder); | ||
| this->tableView->resizeColumnsToContents(); | ||
| this->tableView->setSortingEnabled(true); | ||
|
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| connect(tableView->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&,const QItemSelection&)), this, SLOT(selection_changed(const QItemSelection&,const QItemSelection&))); | ||
|
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| delete list; | ||
| } | ||
|
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| /** | ||
| * Quote a string according to the requirements of font-config. | ||
| * See http://www.freedesktop.org/software/fontconfig/fontconfig-user.html | ||
| * | ||
| * The '\', '-', ':' and ',' characters in family names must be preceded | ||
| * by a '\' character to avoid having them misinterpreted. Similarly, values | ||
| * containing '\', '=', '_', ':' and ',' must also have them preceded by a | ||
| * '\' character. The '\' characters are stripped out of the family name and | ||
| * values as the font name is read. | ||
| * | ||
| * @param text unquoted string | ||
| * @return quoted text | ||
| */ | ||
| QString FontList::quote(const QString& text) | ||
| { | ||
| QString result = text; | ||
| result.replace('\\', R"(\\\\)") | ||
| .replace('-', "\\\\-") | ||
| .replace(':', "\\\\:") | ||
| .replace(',', "\\\\,") | ||
| .replace('=', "\\\\=") | ||
| .replace('_', "\\\\_"); | ||
| return result; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| #pragma once | ||
|
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| #include <vector> | ||
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| #include <QWidget> | ||
| #include <QStandardItemModel> | ||
| #include <QSortFilterProxyModel> | ||
|
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| #include "qtgettext.h" | ||
| #include "ui_FontList.h" | ||
|
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| class FontSortFilterProxyModel : public QSortFilterProxyModel | ||
| { | ||
| Q_OBJECT | ||
|
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| public: | ||
| FontSortFilterProxyModel(QObject *parent = nullptr); | ||
|
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| void clearFilter(); | ||
| void setFilterHashes(const std::vector<uint32_t>&); | ||
|
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| protected: | ||
| bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override; | ||
|
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| private: | ||
| QSet<QString> filterHashes; | ||
| }; | ||
|
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| class FontList : public QWidget, public Ui::FontListWidget | ||
| { | ||
| Q_OBJECT | ||
|
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| public: | ||
| FontList(QWidget *parent = nullptr); | ||
| FontList(const FontList& source) = delete; | ||
| FontList(FontList&& source) = delete; | ||
| FontList& operator=(const FontList& source) = delete; | ||
| FontList& operator=(FontList&& source) = delete; | ||
| ~FontList() override = default; | ||
|
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| void initGUI(); | ||
| void update_font_list(); | ||
|
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| static constexpr int COL_FONT_NAME = 0; | ||
| static constexpr int COL_FONT_STYLE = 1; | ||
| static constexpr int COL_FILE_NAME = 2; | ||
| static constexpr int COL_HASH = 3; | ||
|
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| public slots: | ||
| void on_copyButton_clicked(); | ||
| void on_filterLineEdit_textChanged(const QString&); | ||
| void on_charsLineEdit_textChanged(const QString&); | ||
| void selection_changed(const QItemSelection&, const QItemSelection&); | ||
|
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| signals: | ||
| void font_selected(const QString font); | ||
|
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| protected: | ||
| void resizeEvent(QResizeEvent *event) override; | ||
|
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| private: | ||
| QString quote(const QString& text); | ||
|
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| QString selection; | ||
| QStandardItemModel *model; | ||
| FontSortFilterProxyModel *proxy; | ||
| }; |
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