forked from mia/Aegisub
87 lines
3.3 KiB
C++
87 lines
3.3 KiB
C++
// Copyright (c) 2007, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file visual_feature->h
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/// @see visual_feature->cpp
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/// @ingroup visual_ts
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///
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#pragma once
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#include "vector2d.h"
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#include <boost/intrusive/list_hook.hpp>
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class OpenGLWrapper;
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class AssDialogue;
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/// VisualDraggableFeature display types
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enum DraggableFeatureType {
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DRAG_NONE,
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DRAG_BIG_SQUARE,
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DRAG_BIG_CIRCLE,
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DRAG_BIG_TRIANGLE,
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DRAG_SMALL_SQUARE,
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DRAG_SMALL_CIRCLE
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};
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/// @class VisualDraggableFeature
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/// @brief Onscreen control used by many visual tools
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///
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/// By itself this class doesn't do much. It mostly just draws itself at a
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/// specified position and performs hit-testing.
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class VisualDraggableFeature : public boost::intrusive::make_list_base_hook<boost::intrusive::link_mode<boost::intrusive::auto_unlink>>::type {
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Vector2D start; ///< position before the last drag operation began
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public:
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DraggableFeatureType type = DRAG_NONE; ///< Shape of feature
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Vector2D pos; ///< Position of this feature
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int layer = 0; ///< Layer; Higher = above
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AssDialogue* line = nullptr; ///< The dialogue line this feature is for; may be nullptr
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/// @brief Is the given point over this feature?
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/// @param mouse_pos Position of the mouse
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bool IsMouseOver(Vector2D mouse_pos) const;
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/// @brief Draw this feature
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/// @param gl OpenGLWrapper to use
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void Draw(OpenGLWrapper const& gl) const;
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/// Start a drag
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void StartDrag();
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/// Update the position of the feature during a drag
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/// @param d New position of the feature
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/// @param single_axis Only apply the larger of the two changes to the position
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void UpdateDrag(Vector2D d, bool single_axis);
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/// Has this feature actually moved since a drag was last started?
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bool HasMoved() const;
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};
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