diff options
Diffstat (limited to 'examples/widgets/graphicsview/flowlayout')
7 files changed, 0 insertions, 316 deletions
diff --git a/examples/widgets/graphicsview/flowlayout/CMakeLists.txt b/examples/widgets/graphicsview/flowlayout/CMakeLists.txt deleted file mode 100644 index b15af3d02d..0000000000 --- a/examples/widgets/graphicsview/flowlayout/CMakeLists.txt +++ /dev/null @@ -1,38 +0,0 @@ -# Copyright (C) 2022 The Qt Company Ltd. -# SPDX-License-Identifier: BSD-3-Clause - -cmake_minimum_required(VERSION 3.16) -project(flowlayout LANGUAGES CXX) - -if(NOT DEFINED INSTALL_EXAMPLESDIR) - set(INSTALL_EXAMPLESDIR "examples") -endif() - -set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/graphicsview_flowlayout") - -find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets) - -qt_standard_project_setup() - -qt_add_executable(graphicsview_flowlayout - flowlayout.cpp flowlayout.h - main.cpp - window.cpp window.h -) - -set_target_properties(graphicsview_flowlayout PROPERTIES - WIN32_EXECUTABLE TRUE - MACOSX_BUNDLE TRUE -) - -target_link_libraries(graphicsview_flowlayout PRIVATE - Qt6::Core - Qt6::Gui - Qt6::Widgets -) - -install(TARGETS graphicsview_flowlayout - RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}" - BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}" - LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}" -) diff --git a/examples/widgets/graphicsview/flowlayout/flowlayout.cpp b/examples/widgets/graphicsview/flowlayout/flowlayout.cpp deleted file mode 100644 index ab5f4717b3..0000000000 --- a/examples/widgets/graphicsview/flowlayout/flowlayout.cpp +++ /dev/null @@ -1,170 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include "flowlayout.h" - -#include <QtMath> - -FlowLayout::FlowLayout(QGraphicsLayoutItem *parent) : QGraphicsLayout(parent) -{ - QSizePolicy sp = sizePolicy(); - sp.setHeightForWidth(true); - setSizePolicy(sp); -} - -void FlowLayout::insertItem(int index, QGraphicsLayoutItem *item) -{ - item->setParentLayoutItem(this); - if (index > m_items.count() || index < 0) - index = m_items.count(); - m_items.insert(index, item); - invalidate(); -} - -int FlowLayout::count() const -{ - return m_items.count(); -} - -QGraphicsLayoutItem *FlowLayout::itemAt(int index) const -{ - return m_items.value(index); -} - -void FlowLayout::removeAt(int index) -{ - m_items.removeAt(index); - invalidate(); -} - -qreal FlowLayout::spacing(Qt::Orientation o) const -{ - return m_spacing[int(o) - 1]; -} - -void FlowLayout::setSpacing(Qt::Orientations o, qreal spacing) -{ - if (o & Qt::Horizontal) - m_spacing[0] = spacing; - if (o & Qt::Vertical) - m_spacing[1] = spacing; -} - -void FlowLayout::setGeometry(const QRectF &geom) -{ - QGraphicsLayout::setGeometry(geom); - doLayout(geom, true); -} - -qreal FlowLayout::doLayout(const QRectF &geom, bool applyNewGeometry) const -{ - qreal left, top, right, bottom; - getContentsMargins(&left, &top, &right, &bottom); - const qreal maxw = geom.width() - left - right; - - qreal x = 0; - qreal y = 0; - qreal maxRowHeight = 0; - QSizeF pref; - for (QGraphicsLayoutItem *item : m_items) { - pref = item->effectiveSizeHint(Qt::PreferredSize); - maxRowHeight = qMax(maxRowHeight, pref.height()); - - qreal next_x; - next_x = x + pref.width(); - if (next_x > maxw) { - if (qFuzzyIsNull(x)) { - pref.setWidth(maxw); - } else { - x = 0; - next_x = pref.width(); - } - y += maxRowHeight + spacing(Qt::Vertical); - maxRowHeight = 0; - } - - if (applyNewGeometry) - item->setGeometry(QRectF(QPointF(left + x, top + y), pref)); - x = next_x + spacing(Qt::Horizontal); - } - maxRowHeight = qMax(maxRowHeight, pref.height()); - return top + y + maxRowHeight + bottom; -} - -QSizeF FlowLayout::minSize(const QSizeF &constraint) const -{ - QSizeF size(0, 0); - qreal left, top, right, bottom; - getContentsMargins(&left, &top, &right, &bottom); - if (constraint.width() >= 0) { // height for width - const qreal height = doLayout(QRectF(QPointF(0,0), constraint), false); - size = QSizeF(constraint.width(), height); - } else if (constraint.height() >= 0) { // width for height? - // not supported - } else { - for (const QGraphicsLayoutItem *item : std::as_const(m_items)) - size = size.expandedTo(item->effectiveSizeHint(Qt::MinimumSize)); - size += QSizeF(left + right, top + bottom); - } - return size; -} - -QSizeF FlowLayout::prefSize() const -{ - qreal left, right; - getContentsMargins(&left, nullptr, &right, nullptr); - - qreal maxh = 0; - qreal totalWidth = 0; - for (const QGraphicsLayoutItem *item : std::as_const(m_items)) { - if (totalWidth > 0) - totalWidth += spacing(Qt::Horizontal); - QSizeF pref = item->effectiveSizeHint(Qt::PreferredSize); - totalWidth += pref.width(); - maxh = qMax(maxh, pref.height()); - } - maxh += spacing(Qt::Vertical); - - const qreal goldenAspectRatio = 1.61803399; - qreal w = qSqrt(totalWidth * maxh * goldenAspectRatio) + left + right; - - return minSize(QSizeF(w, -1)); -} - -QSizeF FlowLayout::maxSize() const -{ - qreal totalWidth = 0; - qreal totalHeight = 0; - for (const QGraphicsLayoutItem *item : std::as_const(m_items)) { - if (totalWidth > 0) - totalWidth += spacing(Qt::Horizontal); - if (totalHeight > 0) - totalHeight += spacing(Qt::Vertical); - QSizeF pref = item->effectiveSizeHint(Qt::PreferredSize); - totalWidth += pref.width(); - totalHeight += pref.height(); - } - - qreal left, top, right, bottom; - getContentsMargins(&left, &top, &right, &bottom); - return QSizeF(left + totalWidth + right, top + totalHeight + bottom); -} - -QSizeF FlowLayout::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const -{ - QSizeF sh = constraint; - switch (which) { - case Qt::PreferredSize: - sh = prefSize(); - break; - case Qt::MinimumSize: - sh = minSize(constraint); - break; - case Qt::MaximumSize: - sh = maxSize(); - break; - default: - break; - } - return sh; -} diff --git a/examples/widgets/graphicsview/flowlayout/flowlayout.h b/examples/widgets/graphicsview/flowlayout/flowlayout.h deleted file mode 100644 index 43c469ac3c..0000000000 --- a/examples/widgets/graphicsview/flowlayout/flowlayout.h +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include <QGraphicsLayout> - -class FlowLayout : public QGraphicsLayout -{ -public: - FlowLayout(QGraphicsLayoutItem *parent = nullptr); - inline void addItem(QGraphicsLayoutItem *item); - void insertItem(int index, QGraphicsLayoutItem *item); - void setSpacing(Qt::Orientations o, qreal spacing); - qreal spacing(Qt::Orientation o) const; - - // inherited functions - void setGeometry(const QRectF &geom) override; - - int count() const override; - QGraphicsLayoutItem *itemAt(int index) const override; - void removeAt(int index) override; - -protected: - QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint = QSizeF()) const override; - -private: - qreal doLayout(const QRectF &geom, bool applyNewGeometry) const; - QSizeF minSize(const QSizeF &constraint) const; - QSizeF prefSize() const; - QSizeF maxSize() const; - - QList<QGraphicsLayoutItem *> m_items; - qreal m_spacing[2] = {6, 6}; -}; - - -inline void FlowLayout::addItem(QGraphicsLayoutItem *item) -{ - insertItem(-1, item); -} diff --git a/examples/widgets/graphicsview/flowlayout/flowlayout.pro b/examples/widgets/graphicsview/flowlayout/flowlayout.pro deleted file mode 100644 index 7830e3a008..0000000000 --- a/examples/widgets/graphicsview/flowlayout/flowlayout.pro +++ /dev/null @@ -1,10 +0,0 @@ -QT += widgets - -QMAKE_PROJECT_NAME = flowlayout_graphicsview - -HEADERS += flowlayout.h window.h -SOURCES += flowlayout.cpp main.cpp window.cpp - -# install -target.path = $$[QT_INSTALL_EXAMPLES]/widgets/graphicsview/flowlayout -INSTALLS += target diff --git a/examples/widgets/graphicsview/flowlayout/main.cpp b/examples/widgets/graphicsview/flowlayout/main.cpp deleted file mode 100644 index 118b404870..0000000000 --- a/examples/widgets/graphicsview/flowlayout/main.cpp +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause -//! [1] -#include "window.h" - -#include <QApplication> -#include <QGraphicsView> - - -int main(int argc, char *argv[]) -{ - QApplication app(argc, argv); - - QGraphicsScene scene; - QGraphicsView view(&scene); - Window *w = new Window; - scene.addItem(w); - - view.resize(400, 300); - view.show(); - - return app.exec(); -} -//! [1] diff --git a/examples/widgets/graphicsview/flowlayout/window.cpp b/examples/widgets/graphicsview/flowlayout/window.cpp deleted file mode 100644 index ed9a5720d3..0000000000 --- a/examples/widgets/graphicsview/flowlayout/window.cpp +++ /dev/null @@ -1,24 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include "window.h" -#include "flowlayout.h" - -#include <QGraphicsProxyWidget> -#include <QLabel> - -Window::Window(QGraphicsItem *parent) : QGraphicsWidget(parent, Qt::Window) -{ - FlowLayout *lay = new FlowLayout; - const QString sentence(QLatin1String("I am not bothered by the fact that I am unknown." - " I am bothered when I do not know others. (Confucius)")); - const QList<QStringView> words = QStringView{ sentence }.split(QLatin1Char(' '), Qt::SkipEmptyParts); - for (const QStringView &word : words) { - QGraphicsProxyWidget *proxy = new QGraphicsProxyWidget(this); - QLabel *label = new QLabel(word.toString()); - label->setFrameStyle(QFrame::Box | QFrame::Plain); - proxy->setWidget(label); - lay->addItem(proxy); - } - setLayout(lay); -} diff --git a/examples/widgets/graphicsview/flowlayout/window.h b/examples/widgets/graphicsview/flowlayout/window.h deleted file mode 100644 index 54c27929ac..0000000000 --- a/examples/widgets/graphicsview/flowlayout/window.h +++ /dev/null @@ -1,11 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include <QGraphicsWidget> - -class Window : public QGraphicsWidget -{ - Q_OBJECT -public: - Window(QGraphicsItem *parent = nullptr); -}; |