qt 6.5.1 original

tests/manual/widgets/itemviews/autoResizePrecision/tablehorz/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## testtable1 Binary:
+#####################################################################
+
+qt_internal_add_manual_test(testtable1
+    GUI
+    SOURCES
+        testtable1.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::Widgets
+)

tests/manual/widgets/itemviews/autoResizePrecision/tablehorz/testtable1.cpp

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+// Copyright (C) 2012 Thorbjørn Lund Martsum - tmartsum[at]gmail.com
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtWidgets/QtWidgets>
+
+const int rowCount = 2000;
+
+class TableDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    TableDialog() : model(rowCount, 3) { create(); }
+    void create()
+    {
+        resize(1000, 233);
+        gridLayout = new QGridLayout(this);
+        tableView = new QTableView(this);
+
+        gridLayout->addWidget(tableView, 0, 0, 2, 1);
+        spinPrecision = new QSpinBox(this);
+        gridLayout->addWidget(spinPrecision, 0, 1, 1, 1);
+        verticalSpacer = new QSpacerItem(20, 20, QSizePolicy::Minimum, QSizePolicy::Expanding);
+        gridLayout->addItem(verticalSpacer, 1, 1, 1, 1);
+
+        QString ii = QString::fromLatin1("ii");
+        QStringList is;
+        spinPrecision->setMinimum(-1);
+        spinPrecision->setMaximum(rowCount + 2);
+        for (int u = 0; u < rowCount; ++u) {
+            if (u % 25 == 0)
+                ii += QString::fromLatin1("i");
+            else
+                ii[ii.length() - 1] = QChar::fromLatin1('a' + (u  % 25));
+            ii[ii.length() - 2] = QChar::fromLatin1('i');
+            is.append(ii);
+        }
+
+        for (int u = 0; u < rowCount; ++u) {
+            QString col1;
+            col1 = QString::fromLatin1("Row: %1").arg(u);
+            model.setData(model.index(u, 0), col1);
+            model.setData(model.index(u, 1), is[u]);
+            model.setData(model.index(u, 2), is[rowCount - u -1]);
+        }
+        tableView->setModel(&model);
+
+        tableView->horizontalHeader()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+        tableView->horizontalHeader()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+        tableView->horizontalHeader()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
+        spinPrecision->setValue(tableView->horizontalHeader()->resizeContentsPrecision());
+        connect(spinPrecision, SIGNAL(valueChanged(int)), this, SLOT(slotValueChanged(int)));
+    } // setupUi
+protected slots:
+    void slotValueChanged(int newval);
+protected:
+    QGridLayout *gridLayout;
+    QTableView *tableView;
+    QSpinBox *spinPrecision;
+    QSpacerItem *verticalSpacer;
+    QStandardItemModel model;
+};
+
+void TableDialog::slotValueChanged(int newval)
+{
+    tableView->horizontalHeader()->setResizeContentsPrecision(newval);
+    tableView->resizeColumnsToContents();
+}
+
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    TableDialog d1;
+    d1.show();
+    app.exec();
+}
+
+#include "testtable1.moc"

tests/manual/widgets/itemviews/autoResizePrecision/tablehorz/testtable1.pro

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+SOURCES = testtable1.cpp
+QT += widgets

tests/manual/widgets/itemviews/autoResizePrecision/tablevert/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## testtable2 Binary:
+#####################################################################
+
+qt_internal_add_manual_test(testtable2
+    GUI
+    SOURCES
+        testtable2.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::Widgets
+)

tests/manual/widgets/itemviews/autoResizePrecision/tablevert/testtable2.cpp

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+// Copyright (C) 2012 Thorbjørn Lund Martsum - tmartsum[at]gmail.com
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtWidgets/QtWidgets>
+
+const int columnCount = 1500;
+
+class TableDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    TableDialog() : model(2, columnCount) { create(); }
+    void create()
+    {
+        resize(1200, 400);
+        gridLayout = new QGridLayout(this);
+        tableView = new QTableView(this);
+
+        gridLayout->addWidget(tableView, 0, 0, 2, 1);
+        spinPrecision = new QSpinBox(this);
+        gridLayout->addWidget(spinPrecision, 0, 1, 1, 1);
+        verticalSpacer = new QSpacerItem(20, 20, QSizePolicy::Minimum, QSizePolicy::Expanding);
+        gridLayout->addItem(verticalSpacer, 1, 1, 1, 1);
+
+        QString ii = QString::fromLatin1("ii");
+        QStringList is;
+        spinPrecision->setMinimum(-1);
+        spinPrecision->setMaximum(columnCount + 2);
+
+        QFont f = QApplication::font();
+        for (int u = 0; u < columnCount; ++u) {
+            int size = 10 + (u % 63);
+            f.setPixelSize(size);
+            QString col;
+            if (u % 50 < 25)
+                col = QChar::fromLatin1('a' + (u % 25));
+            else
+                col = QChar::fromLatin1('A' + (u % 25));
+
+            int v = columnCount - u - 1;
+            model.setData(model.index(0, u), col);
+            model.setData(model.index(1, v), col);
+
+            model.setData(model.index(0, u), f,  Qt::FontRole);
+            model.setData(model.index(1, v), f,  Qt::FontRole);
+        }
+        tableView->setModel(&model);
+
+        for (int u = 0; u < columnCount; ++ u)
+            tableView->horizontalHeader()->resizeSection(u, 60);
+
+        // Make last index in first row a bit special
+        f.setPixelSize(96);
+        model.setData(model.index(0, columnCount - 1), f,  Qt::FontRole);
+        model.setData(model.index(0, columnCount - 1), QString::fromLatin1("qI"));
+        tableView->horizontalHeader()->resizeSection(columnCount - 1, 140);
+
+        tableView->verticalHeader()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+        tableView->verticalHeader()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+        spinPrecision->setValue(tableView->verticalHeader()->resizeContentsPrecision());
+        connect(spinPrecision, SIGNAL(valueChanged(int)), this, SLOT(slotValueChanged(int)));
+    } // setupUi
+protected slots:
+    void slotValueChanged(int newval);
+protected:
+    QGridLayout *gridLayout;
+    QTableView *tableView;
+    QSpinBox *spinPrecision;
+    QSpacerItem *verticalSpacer;
+    QStandardItemModel model;
+};
+
+void TableDialog::slotValueChanged(int newval)
+{
+    tableView->verticalHeader()->setResizeContentsPrecision(newval);
+    tableView->resizeRowsToContents();
+}
+
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    TableDialog d1;
+    d1.show();
+    app.exec();
+}
+
+#include "testtable2.moc"

tests/manual/widgets/itemviews/autoResizePrecision/tablevert/testtable2.pro

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+SOURCES = testtable2.cpp
+QT += widgets

tests/manual/widgets/itemviews/autoResizePrecision/treeview/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## testtree Binary:
+#####################################################################
+
+qt_internal_add_manual_test(testtree
+    GUI
+    SOURCES
+        testtree.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::Widgets
+)

tests/manual/widgets/itemviews/autoResizePrecision/treeview/testtree.cpp

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+// Copyright (C) 2012 Thorbjørn Lund Martsum - tmartsum[at]gmail.com
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtWidgets/QtWidgets>
+
+class TreeDialog : public QDialog
+{
+    Q_OBJECT
+public:
+    TreeDialog() { create(); }
+protected:
+    void create()
+    {
+        resize(1000, 233);
+        gridLayout = new QGridLayout(this);
+        treeWidget = new QTreeWidget(this);
+
+        gridLayout->addWidget(treeWidget, 0, 0, 2, 1);
+        spinPrecision = new QSpinBox(this);
+        gridLayout->addWidget(spinPrecision, 0, 1, 1, 1);
+        verticalSpacer = new QSpacerItem(20, 20, QSizePolicy::Minimum, QSizePolicy::Expanding);
+        gridLayout->addItem(verticalSpacer, 1, 1, 1, 1);
+
+        QStringList itemInfo("Col1");
+        itemInfo.append("Col2");
+        itemInfo.append("Col3");
+        itemInfo.append("Dummy");
+        // Developer no. could also have been social security number og some other id.
+        treeWidget->setHeaderLabels(itemInfo);
+
+        QStringList sl1("This is Root Item");
+        sl1.append("i");
+        QTreeWidgetItem *rootitem = new QTreeWidgetItem(treeWidget, sl1);
+
+        QStringList sl2("This is Child1 Item");
+        sl2.append("WW");
+        QTreeWidgetItem *child1 = new QTreeWidgetItem(rootitem, sl2);
+
+        QString ii = QString::fromLatin1("ii");
+        QStringList is;
+        const int rowCount = 3000;
+        spinPrecision->setMinimum(-1);
+        spinPrecision->setMaximum(rowCount + 5);
+        for (int u = 0; u < rowCount; ++u) {
+            if (u % 25 == 0)
+                ii += QString::fromLatin1("i");
+            else
+                ii[ii.length() - 1] = QChar::fromLatin1('a' + (u  % 25));
+            ii[ii.length() - 2] = QChar::fromLatin1('i');
+            is.append(ii);
+        }
+
+        for (int u = 0; u < rowCount - 2; ++u) { // -2 since we have rootitem and child1
+            QString col1;
+            col1 = QString::fromLatin1("This is child item %1").arg(u + 2);
+
+            QStringList sl(col1);
+            sl.append(is[u]);
+            sl.append(is[rowCount - u - 1]);
+
+            if (u > 500)
+                new QTreeWidgetItem(rootitem, sl);
+            else
+                new QTreeWidgetItem(child1, sl);
+        }
+        treeWidget->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+        treeWidget->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+        treeWidget->header()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
+        spinPrecision->setValue(treeWidget->header()->resizeContentsPrecision());
+        connect(spinPrecision, SIGNAL(valueChanged(int)), this, SLOT(slotValueChanged(int)));
+    } // setupUi
+protected slots:
+    void slotValueChanged(int newval);
+protected:
+    QGridLayout *gridLayout;
+    QTreeWidget *treeWidget;
+    QSpinBox *spinPrecision;
+    QSpacerItem *verticalSpacer;
+};
+
+void TreeDialog::slotValueChanged(int newval)
+{
+    treeWidget->header()->setResizeContentsPrecision(newval);
+    for (int u = 0; u < treeWidget->header()->count(); ++u)
+        treeWidget->resizeColumnToContents(u);
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    TreeDialog d1;
+    d1.show();
+    app.exec();
+}
+
+#include "testtree.moc"

tests/manual/widgets/itemviews/autoResizePrecision/treeview/testtree.pro

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+SOURCES = testtree.cpp
+QT += widgets