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Diffstat (limited to 'src/Authoring/Studio/Palettes/Timeline/MultiSelectAspect.h')
| -rw-r--r-- | src/Authoring/Studio/Palettes/Timeline/MultiSelectAspect.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/Authoring/Studio/Palettes/Timeline/MultiSelectAspect.h b/src/Authoring/Studio/Palettes/Timeline/MultiSelectAspect.h new file mode 100644 index 00000000..0c19b2b2 --- /dev/null +++ b/src/Authoring/Studio/Palettes/Timeline/MultiSelectAspect.h @@ -0,0 +1,149 @@ +/**************************************************************************** +** +** Copyright (C) 2002 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef INCLUDED_MULTISELECT_ASPECT_H +#define INCLUDED_MULTISELECT_ASPECT_H 1 + +#pragma once + +//============================================================================== +// Includes +//============================================================================== +#include "StateRow.h" +#include "TimelineTimelineLayout.h" +#include "Bindings/IKeyframeSelector.h" + +//============================================================================== +/** + * This class handles the multi selection aspect for keyframes in the timeline. + * It toggles each keyframe's select state on or off, depending on whether the + * mouse rectangle is over them and if the modifier key is down. + */ +template <typename TSTLKeyFrameList> +class CMultiSelectAspect +{ + +public: + typedef typename TSTLKeyFrameList::iterator TSTLKeyframesItr; + +protected: + TSTLKeyFrameList &m_STLKeyframes; ///< stores list of keyframes in a vector (STL) + IKeyframeSelector *m_KeyframeSelector; ///< the interface that performs the keyframes selection + +public: + //============================================================================= + /** + * Constructor + * @param inSTLKeyframes stores a list of keyframes in a vector + * @param inDoc stores the studio document + */ + CMultiSelectAspect(TSTLKeyFrameList &inSTLKeyframes, IKeyframeSelector *inKeyframeSelector) + : m_STLKeyframes(inSTLKeyframes) + , m_KeyframeSelector(inKeyframeSelector) + { + } + + //============================================================================= + /** + * Destructor + */ + ~CMultiSelectAspect() {} + + //============================================================================= + /** + * CommitSelections: Overwrites all previous keyframe states with the current keyframe states. + * This will prevent the keyframes in the current selection +*from +* switching states as we select other keyframes. + */ + void CommitSelections() + { + // Iterates each keyframe and set the previous state to the current one. + TSTLKeyframesItr thePos = m_STLKeyframes.begin(); + for (; thePos != m_STLKeyframes.end(); ++thePos) { + (*thePos)->SetPreviousSelectState((*thePos)->IsSelected()); + } + } + + //============================================================================= + /** + * MultiSelect: Handles the selection of keyframes in a given rect. + * @param inRect stores the rectangle that will be used to select the keyframes within it. + * @param inModifierKeyDown indicates if thte modifier key is pressed. + */ + void MultiSelect(CRct inRect, bool inModifierKeyDown) + { + // Iterates through the keyframes and checks if the keys are in the rect and + // perform the necessary selection operations on each keyframe. + TSTLKeyframesItr thePos = m_STLKeyframes.begin(); + for (; thePos != m_STLKeyframes.end(); ++thePos) { + bool isInRect = (*thePos)->IsInRect(inRect); + if ((*thePos)->IsEnabled()) { + if (inModifierKeyDown) { + if (isInRect) { + if (!(*thePos)->GetRectOverHandled()) { + bool theSelectState = (*thePos)->IsSelected(); + + // Update the previous select state + (*thePos)->SetPreviousSelectState(theSelectState); + // Negate the keyframe state when it is in the rectangle + theSelectState = !theSelectState; + (*thePos)->Select(theSelectState); + m_KeyframeSelector->SelectKeyframes(theSelectState, + (*thePos)->GetTime()); + + // Set the RectOverFlag to true, so that we will not repeat the negation + // in indefinitely. + (*thePos)->SetRectOverHandled(true); + } + } else { + // When the rectangle is not over the current keyframe, revert its state to + // the previous one + if ((*thePos)->IsSelected() != (*thePos)->GetPreviousSelectState()) { + (*thePos)->Select((*thePos)->GetPreviousSelectState()); + m_KeyframeSelector->SelectKeyframes((*thePos)->GetPreviousSelectState(), + (*thePos)->GetTime()); + } + (*thePos)->SetRectOverHandled(false); + } + } else { + // When modifier is not pressed we will just select the keyframes if it is over + // in the rectangle and deselect it when it isn't. + if ((*thePos)->IsSelected() != isInRect) { + (*thePos)->SetPreviousSelectState((*thePos)->IsSelected()); + m_KeyframeSelector->SelectKeyframes(isInRect, (*thePos)->GetTime()); + (*thePos)->Select(isInRect); + } + (*thePos)->SetRectOverHandled(false); + } + } + } + } +}; +#endif // INCLUDED_MULTISELECT_ASPECT_H |