Make a target for code folder and add each file to the build system

Added each file to the buid system and fixed related issues. Task-number: QTBUG-137566 Change-Id: I1824beeb176e7ace800e25f28e486349e8df5a2b Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
author: Oleksii Zbykovskyi <Oleksii.Zbykovskyi@qt.io> 2025-07-30 18:46:08 +0200
committer: Oleksii Zbykovskyi <Oleksii.Zbykovskyi@qt.io> 2025-08-01 20:47:43 +0200
commit: 4b022c0fe08d31e39a074d12833a29cf02c67040 (patch)
tree: 93175a119770350da60fe47c74fb393c62254044 /src/gui/doc/snippets/code
parent: 4f3a8a8d68ce804f5d999559ccf11a42a79e3f8f (diff)
8 files changed, 411 insertions, 281 deletions
diff --git a/src/gui/doc/snippets/code/CMakeLists.txt b/src/gui/doc/snippets/code/CMakeLists.txt
new file mode 100644
index 00000000000..7f8897ec8fa
--- /dev/null
+++ b/src/gui/doc/snippets/code/CMakeLists.txt
@@ -0,0 +1,76 @@
+# Copyright (C) 2025 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+add_library(gui_snippets_code OBJECT
+    src_gui_accessible_qaccessible.cpp
+    src_gui_image_qimage.cpp
+    src_gui_image_qimagereader.cpp
+    src_gui_image_qimagewriter.cpp
+    src_gui_image_qpixmap.cpp
+    src_gui_image_qpixmapcache.cpp
+    src_gui_kernel_qevent.cpp
+    src_gui_kernel_qguiapplication_x11.cpp
+    src_gui_kernel_qshortcut.cpp
+    src_gui_kernel_qshortcutmap.cpp
+    src_gui_math3d_qquaternion.cpp
+    src_gui_painting_qbrush.cpp
+    src_gui_painting_qcolor.cpp
+    src_gui_painting_qpainterpath.cpp
+    src_gui_painting_qpen.cpp
+    src_gui_painting_qregion_unix.cpp
+    src_gui_painting_qregion.cpp
+    src_gui_painting_qpen.cpp
+    src_gui_painting_qregion_unix.cpp
+    src_gui_painting_qregion.cpp
+    src_gui_text_qfont.cpp
+    src_gui_text_qfontmetrics.cpp
+    src_gui_text_qtextcursor.cpp
+    src_gui_text_qtextdocumentwriter.cpp
+    src_gui_text_qtextlayout.cpp
+    src_gui_util_qdesktopservices.cpp
+    src_gui_util_qundostack.cpp
+)
+
+target_link_libraries(gui_snippets_code PRIVATE
+    Qt::Core
+    Qt::Gui
+)
+
+qt_internal_extend_target(gui_snippets_code CONDITION QT_FEATURE_widgets
+    LIBRARIES
+        Qt::Widgets
+    SOURCES
+        doc_src_coordsys.cpp
+        doc_src_richtext.cpp
+        src_gui_image_qicon.cpp
+        src_gui_image_qmovie.cpp
+        src_gui_itemviews_qstandarditemmodel.cpp
+        src_gui_kernel_qaction.cpp
+        src_gui_kernel_qapplication.cpp
+        src_gui_kernel_qguiapplication.cpp
+        src_gui_kernel_qkeysequence.cpp
+        src_gui_opengl_qopenglfunctions.cpp
+        src_gui_painting_qpainter.cpp
+        src_gui_text_qsyntaxhighlighter.cpp
+        src_gui_util_qvalidator.cpp
+)
+
+qt_internal_extend_target(gui_snippets_code CONDITION QT_FEATURE_vulkan
+    SOURCES
+        src_gui_vulkan_qvulkanfunctions.cpp
+        src_gui_vulkan_qvulkaninstance.cpp
+        src_gui_vulkan_qvulkanwindow.cpp
+)
+
+qt_internal_extend_target(gui_snippets_code CONDITION QT_FEATURE_clipboard
+    SOURCES
+        src_gui_kernel_qclipboard.cpp
+)
+
+set_target_properties(gui_snippets_code PROPERTIES COMPILE_OPTIONS "-w")
+
+if ("${CMAKE_CXX_COMPILE_FEATURES}" MATCHES "cxx_std_23")
+    set_property(TARGET gui_snippets_code PROPERTY CXX_STANDARD 23)
+endif()
+
+set_target_properties(gui_snippets_code PROPERTIES UNITY_BUILD OFF)
diff --git a/src/gui/doc/snippets/code/src_gui_image_qicon.cpp b/src/gui/doc/snippets/code/src_gui_image_qicon.cpp
index 2901ddd592b..66eb7b9c187 100644
--- a/src/gui/doc/snippets/code/src_gui_image_qicon.cpp
+++ b/src/gui/doc/snippets/code/src_gui_image_qicon.cpp
@@ -3,6 +3,7 @@
 #include <QIcon>
 #include <QPainter>
 #include <QToolButton>
+#include <QSize>
 
 namespace src_gui_image_qicon {
 
@@ -20,9 +21,11 @@ QToolButton *button = new QToolButton;
 button->setIcon(QIcon("open.png"));
 //! [0]
 
+QSize size(1, 1);
+
 //! [addFile]
 QIcon openIcon("open.png");
-openIcon.addFile("open-disabled.png", QIcon::Disabled);
+openIcon.addFile("open-disabled.png", size ,QIcon::Disabled);
 //! [addFile]
 
 //! [1]
@@ -42,6 +45,7 @@ void MyWidget::drawIcon(QPainter *painter, const QRect &rect)
 }
 //! [2]
 
+using namespace Qt::StringLiterals;
 
 void wrapper1() {
 
diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qaction.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qaction.cpp
index 054b40d7c07..479c1882a25 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qaction.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qaction.cpp
@@ -1,12 +1,21 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-//! [0]
-QApplication app(argc, argv);
-app.setAttribute(Qt::AA_DontShowIconsInMenus);  // Icons are *no longer shown* in menus
-// ...
-QAction *myAction = new QAction();
-// ...
-myAction->setIcon(SomeIcon);
-myAction->setIconVisibleInMenu(true);   // Icon *will* be shown in menus for *this* action.
-//! [0]
+#include <QApplication>
+#include <QAction>
+#include <QIcon>
+
+int main(int argc, char **argv)
+{
+    QIcon SomeIcon(":/path/to/icon.png");
+
+    //! [0]
+    QApplication app(argc, argv);
+    app.setAttribute(Qt::AA_DontShowIconsInMenus);  // Icons are *no longer shown* in menus
+    // ...
+    QAction *myAction = new QAction();
+    // ...
+    myAction->setIcon(SomeIcon);
+    myAction->setIconVisibleInMenu(true);   // Icon *will* be shown in menus for *this* action.
+    //! [0]
+}
diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qkeysequence.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qkeysequence.cpp
index 0f335dd0a04..b20d3301c5e 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qkeysequence.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qkeysequence.cpp
@@ -6,34 +6,38 @@
 
 
 namespace src_gui_kernel_qkeysequence {
-struct Wrapper : public QWidget
-{ void wrapper(); };
 
-/* Wrap non-compilable code snippet
-
-//! [0]
-QKeySequence(QKeySequence::Print);
-QKeySequence(tr("Ctrl+P"));
-QKeySequence(tr("Ctrl+p"));
-QKeySequence(Qt::CTRL | Qt::Key_P);
-QKeySequence(Qt::CTRL + Qt::Key_P); // deprecated
-//! [0]
-
-
-//! [1]
-QKeySequence(tr("Ctrl+X, Ctrl+C"));
-QKeySequence(Qt::CTRL | Qt::Key_X, Qt::CTRL | Qt::Key_C);
-QKeySequence(Qt::CTRL + Qt::Key_X, Qt::CTRL + Qt::Key_C); // deprecated
-//! [1]
-
-*/ // Wrap non-compilable code snippet
-
-void Wrapper::wrapper() {
-//! [2]
-QMenu *file = new QMenu(this);
-file->addAction(tr("&Open..."), QKeySequence(tr("Ctrl+O", "File|Open")),
-                this, &MainWindow::open);
-//! [2]
-
-} // Wrapper::wrapper
-} // src_gui_kernel_qkeysequence
+    struct MainWindow : public QWidget
+    {
+        void wrapper();
+        void open();
+    };
+
+    /* Wrap non-compilable code snippet
+
+    //! [0]
+    QKeySequence(QKeySequence::Print);
+    QKeySequence(tr("Ctrl+P"));
+    QKeySequence(tr("Ctrl+p"));
+    QKeySequence(Qt::CTRL | Qt::Key_P);
+    QKeySequence(Qt::CTRL + Qt::Key_P); // deprecated
+    //! [0]
+
+
+    //! [1]
+    QKeySequence(tr("Ctrl+X, Ctrl+C"));
+    QKeySequence(Qt::CTRL | Qt::Key_X, Qt::CTRL | Qt::Key_C);
+    QKeySequence(Qt::CTRL + Qt::Key_X, Qt::CTRL + Qt::Key_C); // deprecated
+    //! [1]
+
+    */ // Wrap non-compilable code snippet
+
+    void MainWindow::wrapper()
+    {
+        //! [2]
+        QMenu *file = new QMenu(this);
+        file->addAction(tr("&Open..."), QKeySequence(tr("Ctrl+O", "File|Open")),
+                        this, &MainWindow::open);
+        //! [2]
+    }
+}
diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qshortcut.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qshortcut.cpp
index d67aea12880..f7dd9380679 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qshortcut.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qshortcut.cpp
@@ -1,18 +1,29 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
-//! [0]
-shortcut = new QShortcut(QKeySequence(tr("Ctrl+O", "File|Open")),
-                         parent);
-//! [0]
+#include <QShortcut>
+#include <QKeySequence>
 
+class MyShortcut : public QShortcut
+{
+    void example()
+    {
+        QShortcut *shortcut;
+        QObject *parent;
+        //! [0]
+        shortcut = new QShortcut(QKeySequence(tr("Ctrl+O", "File|Open")),
+                                parent);
+        //! [0]
 
-//! [1]
-setKey(0);                  // no signal emitted
-setKey(QKeySequence());     // no signal emitted
-setKey(0x3b1);              // Greek letter alpha
-setKey(Qt::Key_D);              // 'd', e.g. to delete
-setKey('q');                // 'q', e.g. to quit
-setKey(Qt::CTRL | Qt::Key_P);       // Ctrl+P, e.g. to print document
-setKey("Ctrl+P");           // Ctrl+P, e.g. to print document
-//! [1]
+
+        //! [1]
+        setKey(0);                  // no signal emitted
+        setKey(QKeySequence());     // no signal emitted
+        setKey(0x3b1);              // Greek letter alpha
+        setKey(Qt::Key_D);              // 'd', e.g. to delete
+        setKey('q');                // 'q', e.g. to quit
+        setKey(Qt::CTRL | Qt::Key_P);       // Ctrl+P, e.g. to print document
+        setKey(tr("Ctrl+P"));           // Ctrl+P, e.g. to print document
+        //! [1]
+    }
+};
diff --git a/src/gui/doc/snippets/code/src_gui_painting_qpainter.cpp b/src/gui/doc/snippets/code/src_gui_painting_qpainter.cpp
index cfbf3e44a2d..135d7555dad 100644
--- a/src/gui/doc/snippets/code/src_gui_painting_qpainter.cpp
+++ b/src/gui/doc/snippets/code/src_gui_painting_qpainter.cpp
@@ -76,112 +76,111 @@ void MyWidget::paintEvent(QPaintEvent *)
 //! [2]
 
 
-void wrapper0() {
-QPainter *painter = nullptr;
-QPainter *painter2 = nullptr;
-QPaintDevice *myWidget = nullptr;
-//! [3]
-painter->begin(0); // impossible - paint device cannot be 0
-
-QPixmap image(0, 0);
-painter->begin(&image); // impossible - image.isNull() == true;
-
-painter->begin(myWidget);
-painter2->begin(myWidget); // impossible - only one painter at a time
-//! [3]
-
+void wrapper0()
+{
+    QPainter *painter = nullptr;
+    QPainter *painter2 = nullptr;
+    QPaintDevice *myWidget = nullptr;
+    //! [3]
+    painter->begin(nullptr); // impossible - paint device cannot be null
+
+    QPixmap image(0, 0);
+    painter->begin(&image); // impossible - image.isNull() == true;
+
+    painter->begin(myWidget);
+    painter2->begin(myWidget); // impossible - only one painter at a time
+    //! [3]
 } // wrapper0
 
-namespace QPainterWrapper {
-struct QPainter {
-    void rotate(qreal angle);
-    void setWorldTransform(QTransform matrix, bool);
-};
-
+namespace QPainterWrapper
+{
+    struct QPainter {
+        void rotate(qreal angle);
+        void setWorldTransform(QTransform matrix, bool);
+    };
 } // QPainterWrapper
 
-void MyWidget::wrapper1() {
-//! [5]
-QPainterPath path;
-path.moveTo(20, 80);
-path.lineTo(20, 30);
-path.cubicTo(80, 0, 50, 50, 80, 80);
-
-QPainter painter(this);
-painter.drawPath(path);
-//! [5]
+void MyWidget::wrapper1()
+{
+    {
+    //! [5]
+    QPainterPath path;
+    path.moveTo(20, 80);
+    path.lineTo(20, 30);
+    path.cubicTo(80, 0, 50, 50, 80, 80);
 
+    QPainter painter(this);
+    painter.drawPath(path);
+    //! [5]
+    }
 
-//! [6]
-QLineF line(10.0, 80.0, 90.0, 20.0);
+    {
+    //! [6]
+    QLineF line(10.0, 80.0, 90.0, 20.0);
 
-QPainter painter(this);
-painter.drawLine(line);
-//! [6]
+    QPainter painter(this);
+    painter.drawLine(line);
+    //! [6]
+    }
 } // MyWidget::wrapper1()
 
 
-void MyWidget::wrapper2() {
-
-//! [7]
-QRectF rectangle(10.0, 20.0, 80.0, 60.0);
-
-QPainter painter(this);
-painter.drawRect(rectangle);
-//! [7]
+void MyWidget::wrapper2()
+{
+    //! [7]
+    QRectF rectangle(10.0, 20.0, 80.0, 60.0);
 
+    QPainter painter(this);
+    painter.drawRect(rectangle);
+    //! [7]
 } // MyWidget::wrapper2
 
 
-void MyWidget::wrapper3() {
-
-//! [8]
-QRectF rectangle(10.0, 20.0, 80.0, 60.0);
-
-QPainter painter(this);
-painter.drawRoundedRect(rectangle, 20.0, 15.0);
-//! [8]
+void MyWidget::wrapper3()
+{
+    //! [8]
+    QRectF rectangle(10.0, 20.0, 80.0, 60.0);
 
+    QPainter painter(this);
+    painter.drawRoundedRect(rectangle, 20.0, 15.0);
+    //! [8]
 } // MyWidget::wrapper3
 
 
-void MyWidget::wrapper4() {
-
-//! [9]
-QRectF rectangle(10.0, 20.0, 80.0, 60.0);
-
-QPainter painter(this);
-painter.drawEllipse(rectangle);
-//! [9]
+void MyWidget::wrapper4()
+{
+    //! [9]
+    QRectF rectangle(10.0, 20.0, 80.0, 60.0);
 
+    QPainter painter(this);
+    painter.drawEllipse(rectangle);
+    //! [9]
 } // MyWidget::wrapper4
 
 
-void MyWidget::wrapper5() {
-
-//! [10]
-QRectF rectangle(10.0, 20.0, 80.0, 60.0);
-int startAngle = 30 * 16;
-int spanAngle = 120 * 16;
-
-QPainter painter(this);
-painter.drawArc(rectangle, startAngle, spanAngle);
-//! [10]
+void MyWidget::wrapper5()
+{
+    //! [10]
+    QRectF rectangle(10.0, 20.0, 80.0, 60.0);
+    int startAngle = 30 * 16;
+    int spanAngle = 120 * 16;
 
+    QPainter painter(this);
+    painter.drawArc(rectangle, startAngle, spanAngle);
+    //! [10]
 } // MyWidget::wrapper5
 
 
-void MyWidget::wrapper6() {
-
-//! [11]
-QRectF rectangle(10.0, 20.0, 80.0, 60.0);
-int startAngle = 30 * 16;
-int spanAngle = 120 * 16;
-
-QPainter painter(this);
-painter.drawPie(rectangle, startAngle, spanAngle);
-//! [11]
+void MyWidget::wrapper6()
+{
+    //! [11]
+    QRectF rectangle(10.0, 20.0, 80.0, 60.0);
+    int startAngle = 30 * 16;
+    int spanAngle = 120 * 16;
 
+    QPainter painter(this);
+    painter.drawPie(rectangle, startAngle, spanAngle);
+    //! [11]
 } // MyWidget::wrapper6
 
 
@@ -200,73 +199,74 @@ Q_UNUSED(rectangle);
 } // MyWidget::wrapper7
 
 
-void MyWidget::wrapper8() {
-
-//! [13]
-static const QPointF points[3] = {
-    QPointF(10.0, 80.0),
-    QPointF(20.0, 10.0),
-    QPointF(80.0, 30.0),
-};
-
-QPainter painter(this);
-painter.drawPolyline(points, 3);
-//! [13]
+void MyWidget::wrapper8()
+{
+    //! [13]
+    static const QPointF points[3] = {
+        QPointF(10.0, 80.0),
+        QPointF(20.0, 10.0),
+        QPointF(80.0, 30.0),
+    };
 
+    QPainter painter(this);
+    painter.drawPolyline(points, 3);
+    //! [13]
 } // MyWidget::wrapper8
 
 
-void MyWidget::wrapper9() {
-//! [14]
-static const QPointF points[4] = {
-    QPointF(10.0, 80.0),
-    QPointF(20.0, 10.0),
-    QPointF(80.0, 30.0),
-    QPointF(90.0, 70.0)
-};
-
-QPainter painter(this);
-painter.drawPolygon(points, 4);
-//! [14]
+void MyWidget::wrapper9()
+{
+    //! [14]
+    static const QPointF points[4] = {
+        QPointF(10.0, 80.0),
+        QPointF(20.0, 10.0),
+        QPointF(80.0, 30.0),
+        QPointF(90.0, 70.0)
+    };
 
+    QPainter painter(this);
+    painter.drawPolygon(points, 4);
+    //! [14]
 } // MyWidget::wrapper9
 
 
-void MyWidget::wrapper10() {
-
-//! [15]
-static const QPointF points[4] = {
-    QPointF(10.0, 80.0),
-    QPointF(20.0, 10.0),
-    QPointF(80.0, 30.0),
-    QPointF(90.0, 70.0)
-};
-
-QPainter painter(this);
-painter.drawConvexPolygon(points, 4);
-//! [15]
-
+void MyWidget::wrapper10()
+{
+    {
+    //! [15]
+    static const QPointF points[4] = {
+        QPointF(10.0, 80.0),
+        QPointF(20.0, 10.0),
+        QPointF(80.0, 30.0),
+        QPointF(90.0, 70.0)
+    };
 
-//! [16]
-QRectF target(10.0, 20.0, 80.0, 60.0);
-QRectF source(0.0, 0.0, 70.0, 40.0);
-QPixmap pixmap(":myPixmap.png");
+    QPainter painter(this);
+    painter.drawConvexPolygon(points, 4);
+    //! [15]
+    }
 
-QPainter painter(this);
-painter.drawPixmap(target, pixmap, source);
-//! [16]
+    {
+    //! [16]
+    QRectF target(10.0, 20.0, 80.0, 60.0);
+    QRectF source(0.0, 0.0, 70.0, 40.0);
+    QPixmap pixmap(":myPixmap.png");
 
+    QPainter painter(this);
+    painter.drawPixmap(target, pixmap, source);
+    //! [16]
+    }
 } // MyWidget::wrapper10
 
 
-void MyWidget::wrapper11() {
-QRect rect;
-
-//! [17]
-QPainter painter(this);
-painter.drawText(rect, Qt::AlignCenter, tr("Qt\nProject"));
-//! [17]
+void MyWidget::wrapper11()
+{
+    QRect rect;
 
+    //! [17]
+    QPainter painter(this);
+    painter.drawText(rect, Qt::AlignCenter, tr("Qt\nProject"));
+    //! [17]
 } // MyWidget::wrapper11
 
 
@@ -275,101 +275,98 @@ QRectF fillRect(QRect rect, int background) {
     Q_UNUSED(background);
     return QRectF();
 };
-void MyWidget::wrapper12() {
-QRect rectangle;
 
-//! [18]
-QPicture picture;
-QPointF point(10.0, 20.0);
-picture.load("drawing.pic");
+void MyWidget::wrapper12()
+{
+    QRect rectangle;
 
-QPainter painter(this);
-painter.drawPicture(0, 0, picture);
-//! [18]
+    //! [18]
+    QPicture picture;
+    QPointF point(10.0, 20.0);
+    picture.load("drawing.pic");
 
-Q_UNUSED(point);
+    QPainter painter(this);
+    painter.drawPicture(0, 0, picture);
+    //! [18]
 
+    Q_UNUSED(point);
 
-//! [19]
-fillRect(rectangle, background());
-//! [19]
 
+    //! [19]
+    fillRect(rectangle, background());
+    //! [19]
 } // MyWidget::wrapper12
 
 
-void MyWidget::wrapper13() {
-
-//! [20]
-QRectF target(10.0, 20.0, 80.0, 60.0);
-QRectF source(0.0, 0.0, 70.0, 40.0);
-QImage image(":/images/myImage.png");
-
-QPainter painter(this);
-painter.drawImage(target, image, source);
-//! [20]
+void MyWidget::wrapper13()
+{
+    //! [20]
+    QRectF target(10.0, 20.0, 80.0, 60.0);
+    QRectF source(0.0, 0.0, 70.0, 40.0);
+    QImage image(":/images/myImage.png");
 
+    QPainter painter(this);
+    painter.drawImage(target, image, source);
+    //! [20]
 } // MyWidget::wrapper13
 
 
-void MyWidget::wrapper14() {
-
-//! [21]
-QPainter painter(this);
-painter.fillRect(0, 0, 128, 128, Qt::green);
-painter.beginNativePainting();
-
-glEnable(GL_SCISSOR_TEST);
-glScissor(0, 0, 64, 64);
+void MyWidget::wrapper14()
+{
+    //! [21]
+    QPainter painter(this);
+    painter.fillRect(0, 0, 128, 128, Qt::green);
+    painter.beginNativePainting();
 
-glClearColor(1, 0, 0, 1);
-glClear(GL_COLOR_BUFFER_BIT);
+    glEnable(GL_SCISSOR_TEST);
+    glScissor(0, 0, 64, 64);
 
-glDisable(GL_SCISSOR_TEST);
+    glClearColor(1, 0, 0, 1);
+    glClear(GL_COLOR_BUFFER_BIT);
 
-painter.endNativePainting();
-//! [21]
+    glDisable(GL_SCISSOR_TEST);
 
+    painter.endNativePainting();
+    //! [21]
 } // MyWidget::wrapper14
 
 
-void MyWidget::wrapper15() {
-
-//! [drawText]
-QPainter painter(this);
-QFont font = painter.font();
-font.setPixelSize(48);
-painter.setFont(font);
-
-const QRect rectangle = QRect(0, 0, 100, 50);
-QRect boundingRect;
-painter.drawText(rectangle, 0, tr("Hello"), &boundingRect);
-
-QPen pen = painter.pen();
-pen.setStyle(Qt::DotLine);
-painter.setPen(pen);
-painter.drawRect(boundingRect.adjusted(0, 0, -pen.width(), -pen.width()));
-
-pen.setStyle(Qt::DashLine);
-painter.setPen(pen);
-painter.drawRect(rectangle.adjusted(0, 0, -pen.width(), -pen.width()));
-//! [drawText]
-
-
+void MyWidget::wrapper15()
+{
+    //! [drawText]
+    QPainter painter(this);
+    QFont font = painter.font();
+    font.setPixelSize(48);
+    painter.setFont(font);
+
+    const QRect rectangle = QRect(0, 0, 100, 50);
+    QRect boundingRect;
+    painter.drawText(rectangle, 0, tr("Hello"), &boundingRect);
+
+    QPen pen = painter.pen();
+    pen.setStyle(Qt::DotLine);
+    painter.setPen(pen);
+    painter.drawRect(boundingRect.adjusted(0, 0, -pen.width(), -pen.width()));
+
+    pen.setStyle(Qt::DashLine);
+    painter.setPen(pen);
+    painter.drawRect(rectangle.adjusted(0, 0, -pen.width(), -pen.width()));
+    //! [drawText]
 } // MyWidget::wrapper15
 
 void MyWidget::concentricCircles()
 {
-//! [renderHint]
+    //! [renderHint]
     QPainter painter(this);
     painter.setRenderHint(QPainter::Antialiasing, true);
-//! [renderHint]
+    //! [renderHint]
     int diameter = 50;
-//! [floatBased]
+    //! [floatBased]
     painter.drawEllipse(QRectF(-diameter / 2.0, -diameter / 2.0, diameter, diameter));
-//! [floatBased]
-//! [intBased]
+    //! [floatBased]
+    //! [intBased]
     painter.drawEllipse(QRect(-diameter / 2, -diameter / 2, diameter, diameter));
-//! [intBased]
+    //! [intBased]
 
 } // MyWidget::concentricCircles
 
diff --git a/src/gui/doc/snippets/code/src_gui_painting_qpainterstateguard.cpp b/src/gui/doc/snippets/code/src_gui_painting_qpainterstateguard.cpp
index adcccd60aa1..f35343ee1b4 100644
--- a/src/gui/doc/snippets/code/src_gui_painting_qpainterstateguard.cpp
+++ b/src/gui/doc/snippets/code/src_gui_painting_qpainterstateguard.cpp
@@ -42,7 +42,7 @@ void MyGuardWidget::paintEvent(QPaintEvent *)
     QPainter painter(this);
     painter.setPen(Qt::red);
     if (drawText) {
-        QPainterStateGuard guard(&painter)
+        QPainterStateGuard guard(&painter);
         painter.setPen(Qt::blue);
         painter.setFont(QFont("Arial", 30));
         painter.drawText(rect(), Qt::AlignCenter, "Qt");
diff --git a/src/gui/doc/snippets/code/src_gui_util_qundostack.cpp b/src/gui/doc/snippets/code/src_gui_util_qundostack.cpp
index fe3ced1d025..e297f4a0264 100644
--- a/src/gui/doc/snippets/code/src_gui_util_qundostack.cpp
+++ b/src/gui/doc/snippets/code/src_gui_util_qundostack.cpp
@@ -1,6 +1,8 @@
 // Copyright (C) 2016 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
+#include <QUndoCommand>
+
 //! [0]
 class AppendText : public QUndoCommand
 {
@@ -11,36 +13,61 @@ public:
         { m_document->chop(m_text.length()); }
     void redo() override
         { m_document->append(m_text); }
+    bool mergeWith(const QUndoCommand *other) override;
 private:
     QString *m_document;
     QString m_text;
 };
 //! [0]
 
+struct MyCommand : public QUndoCommand
+{
+    MyCommand() { setText("My Command"); }
+    void undo() override {}
+    void redo() override {}
+    int id() const override { return 123; } // unique id for this command
+};
 
-//! [1]
-MyCommand *command1 = new MyCommand();
-stack->push(command1);
-MyCommand *command2 = new MyCommand();
-stack->push(command2);
+struct InsertText : public QUndoCommand
+{
+    InsertText(QString *doc, int idx, const QString &text, QUndoCommand *parent = nullptr);
+};
 
-stack->undo();
+struct SetColor : public QUndoCommand
+{
+    SetColor(QString *doc, int idx, int len, const Qt::GlobalColor &color, QUndoCommand *parent = nullptr);
+};
 
-MyCommand *command3 = new MyCommand();
-stack->push(command3); // command2 gets deleted
-//! [1]
+void examples(QUndoStack *stack, QString *document, int idx, const QString &text)
+{
+    {
+        //! [1]
+        MyCommand *command1 = new MyCommand();
+        stack->push(command1);
+        MyCommand *command2 = new MyCommand();
+        stack->push(command2);
+
+        stack->undo();
 
+        MyCommand *command3 = new MyCommand();
+        stack->push(command3); // command2 gets deleted
+        //! [1]
+    }
 
-//! [2]
-QUndoCommand *insertRed = new QUndoCommand(); // an empty command
-insertRed->setText("insert red text");
+    {
+        QUndoStack stack;
 
-new InsertText(document, idx, text, insertRed); // becomes child of insertRed
-new SetColor(document, idx, text.length(), Qt::red, insertRed);
+        //! [2]
+        QUndoCommand *insertRed = new QUndoCommand(); // an empty command
+        insertRed->setText("insert red text");
 
-stack.push(insertRed);
-//! [2]
+        new InsertText(document, idx, text, insertRed); // becomes child of insertRed
+        new SetColor(document, idx, text.length(), Qt::red, insertRed);
 
+        stack.push(insertRed);
+        //! [2]
+    }
+}
 
 //! [3]
 bool AppendText::mergeWith(const QUndoCommand *other)
@@ -52,21 +79,23 @@ bool AppendText::mergeWith(const QUndoCommand *other)
 }
 //! [3]
 
-
-//! [4]
-stack.beginMacro("insert red text");
-stack.push(new InsertText(document, idx, text));
-stack.push(new SetColor(document, idx, text.length(), Qt::red));
-stack.endMacro(); // indexChanged() is emitted
-//! [4]
+void wrap( QUndoStack &stack, QString *document, int idx, const QString &text)
+{
+    //! [4]
+    stack.beginMacro("insert red text");
+    stack.push(new InsertText(document, idx, text));
+    stack.push(new SetColor(document, idx, text.length(), Qt::red));
+    stack.endMacro(); // indexChanged() is emitted
+    //! [4]
 
 
-//! [5]
-QUndoCommand *insertRed = new QUndoCommand(); // an empty command
-insertRed->setText("insert red text");
+    //! [5]
+    QUndoCommand *insertRed = new QUndoCommand(); // an empty command
+    insertRed->setText("insert red text");
 
-new InsertText(document, idx, text, insertRed); // becomes child of insertRed
-new SetColor(document, idx, text.length(), Qt::red, insertRed);
+    new InsertText(document, idx, text, insertRed); // becomes child of insertRed
+    new SetColor(document, idx, text.length(), Qt::red, insertRed);
 
-stack.push(insertRed);
-//! [5]
+    stack.push(insertRed);
+    //! [5]
+}
author	Oleksii Zbykovskyi <Oleksii.Zbykovskyi@qt.io>	2025-07-30 18:46:08 +0200
committer	Oleksii Zbykovskyi <Oleksii.Zbykovskyi@qt.io>	2025-08-01 20:47:43 +0200
commit	4b022c0fe08d31e39a074d12833a29cf02c67040 (patch)
tree	93175a119770350da60fe47c74fb393c62254044 /src/gui/doc/snippets/code
parent	4f3a8a8d68ce804f5d999559ccf11a42a79e3f8f (diff)