Initial commit

Code/Framework/AzQtComponents/AzQtComponents/Components/Widgets/TabWidgetActionToolBar.cpp

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+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#include <AzQtComponents/Components/Widgets/TabWidgetActionToolBar.h>
+
+#include <QAction>
+#include <QActionEvent>
+#include <QHBoxLayout>
+#include <QToolButton>
+
+namespace AzQtComponents
+{
+    TabWidgetActionToolBar::TabWidgetActionToolBar(QWidget* parent)
+        : QWidget(parent)
+    {
+        setLayout(new QHBoxLayout(this));
+        setAttribute(Qt::WA_StyledBackground, true);
+        layout()->setContentsMargins({0, 0, 0, 0});
+        setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+    }
+
+    bool TabWidgetActionToolBar::eventFilter(QObject* watched, QEvent* event)
+    {
+        switch (event->type())
+        {
+            QToolButton* actionButton;
+            QActionEvent* actionEvent;
+
+            case QEvent::ActionAdded:
+                actionEvent = static_cast<QActionEvent*>(event);
+                actionButton = new QToolButton(this);
+                actionButton->setIcon(actionEvent->action()->icon());
+                actionButton->setToolTip(actionEvent->action()->text());
+                if (!actionEvent->action()->objectName().isEmpty())
+                {
+                    actionButton->setObjectName(actionEvent->action()->objectName());
+                }
+                // Forcing styled background to allow using background-color from QSS
+                actionButton->setAttribute(Qt::WA_StyledBackground, true);
+                layout()->addWidget(actionButton);
+                connect(actionButton, &QToolButton::clicked, actionEvent->action(), &QAction::trigger);
+                m_actionButtons[actionEvent->action()] = actionButton;
+                emit actionsChanged();
+                return true;
+            case QEvent::ActionChanged:
+                actionEvent = static_cast<QActionEvent*>(event);
+                actionButton = m_actionButtons[actionEvent->action()];
+                if (actionButton)
+                {
+                    actionButton->setIcon(actionEvent->action()->icon());
+                    actionButton->setText(actionEvent->action()->text());
+                }
+                return true;
+            case QEvent::ActionRemoved:
+                actionEvent = static_cast<QActionEvent*>(event);
+                removeWidgetFromLayout(m_actionButtons[actionEvent->action()]);
+                m_actionButtons.remove(actionEvent->action());
+                emit actionsChanged();
+                return true;
+            default:
+                return QObject::eventFilter(watched, event);
+        }
+    }
+
+    void TabWidgetActionToolBar::removeWidgetFromLayout(QWidget* widget)
+    {
+        auto* currentLayout = qobject_cast<QHBoxLayout*>(layout());
+
+        if (!widget || !currentLayout)
+        {
+            return;
+        }
+
+        int widgetIndex = currentLayout->indexOf(widget);
+        if (widgetIndex < 0)
+        {
+            return;
+        }
+
+        currentLayout->takeAt(widgetIndex);
+        delete widget;
+
+        return;
+    }
+} // namespace AzQtComponents
+
+#include "Components/Widgets/moc_TabWidgetActionToolBar.cpp"