Steve Pham
b4a2edec6a
* Final update copyright headers to reference license files at the repo root Signed-off-by: spham <spham@amazon.com> * Fix copyright validator unit tests to support the stale O3DE header scenario Signed-off-by: spham <spham@amazon.com>
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include "QtViewPaneEffects.h"
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#include <AzCore/std/smart_ptr/unique_ptr.h>
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#include <QGraphicsEffect>
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#include <QWidget>
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#include <QVariant>
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namespace AzQtComponents
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{
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static const char* s_viewPaneManagerDisableEffectPropertyName = "QtViewPaneManagerDisableEffect";
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static const float s_disabledPaneOpacity = 0.4f;
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// put the widget into a grayed out state to indicate it cannot be interacted with
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static void DisableViewPaneDisabledGraphicsEffect(QWidget* widget)
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{
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// only remove effects from widgets that we added them to
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QGraphicsEffect* effect = widget->graphicsEffect();
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if (effect != nullptr && !effect->property(s_viewPaneManagerDisableEffectPropertyName).isNull())
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{
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widget->setGraphicsEffect(nullptr);
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}
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}
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// force the widget to be repainted
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static void ForceWidgetRedraw(QWidget* widget)
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{
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widget->hide();
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widget->resize(widget->size());
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widget->show();
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}
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// restore the widget to its normal state to show it can now be interacted with
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static void EnableViewPaneDisabledGraphicsEffect(QWidget* widget)
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{
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// only apply effects to widgets that didn't have them already...
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if (widget->graphicsEffect() == nullptr)
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{
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auto effect = AZStd::make_unique<QGraphicsOpacityEffect>();
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effect->setOpacity(s_disabledPaneOpacity);
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// flag this as our effect so we can get rid of it later
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effect->setProperty(s_viewPaneManagerDisableEffectPropertyName, true);
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widget->setGraphicsEffect(effect.release());
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// ensure the widget is redrawn with the updated graphical effect
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ForceWidgetRedraw(widget);
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}
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}
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void SetWidgetInteractEnabled(QWidget* widget, const bool on)
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{
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widget->setEnabled(on);
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if (on)
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{
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DisableViewPaneDisabledGraphicsEffect(widget);
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}
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else
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{
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EnableViewPaneDisabledGraphicsEffect(widget);
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}
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}
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} // namespace AzQtComponents
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