forked from mia/Aegisub
126 lines
3.7 KiB
C++
126 lines
3.7 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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//
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// $Id$
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/// @file visual_feature->cpp
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/// @brief Feature on video the user can interact with using mouse
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/// @ingroup visual_ts
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///
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#include "config.h"
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#include "gl_wrap.h"
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#include "visual_feature.h"
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VisualDraggableFeature::VisualDraggableFeature()
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: type(DRAG_NONE)
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, layer(0)
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, line(0)
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{
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}
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bool VisualDraggableFeature::IsMouseOver(Vector2D mouse_pos) const {
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if (!pos) return false;
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Vector2D delta = mouse_pos - pos;
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switch (type) {
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case DRAG_BIG_SQUARE:
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return fabs(delta.X()) < 8 && fabs(delta.Y()) < 8;
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case DRAG_BIG_CIRCLE:
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return delta.SquareLen() < 64;
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case DRAG_BIG_TRIANGLE: {
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if (delta.Y() < -10 || delta.Y() > 6) return false;
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float dy = delta.Y() - 6;
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return 16 * delta.X() + 9 * dy < 0 && 16 * delta.X() - 9 * dy > 0;
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}
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case DRAG_SMALL_SQUARE:
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return fabs(delta.X()) < 4 && fabs(delta.Y()) < 4;
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case DRAG_SMALL_CIRCLE:
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return delta.SquareLen() < 16;
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default:
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return false;
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}
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}
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void VisualDraggableFeature::Draw(OpenGLWrapper const& gl) const {
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if (!pos) return;
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switch (type) {
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case DRAG_BIG_SQUARE:
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gl.DrawRectangle(pos - 8, pos + 8);
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gl.DrawLine(pos - Vector2D(0, 16), pos + Vector2D(0, 16));
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gl.DrawLine(pos - Vector2D(16, 0), pos + Vector2D(16, 0));
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break;
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case DRAG_BIG_CIRCLE:
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gl.DrawCircle(pos, 8);
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gl.DrawLine(pos - Vector2D(0, 16), pos + Vector2D(0, 16));
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gl.DrawLine(pos - Vector2D(16, 0), pos + Vector2D(16, 0));
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break;
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case DRAG_BIG_TRIANGLE:
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gl.DrawTriangle(pos - Vector2D(9, 6), pos + Vector2D(9, -6), pos + Vector2D(0, 10));
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gl.DrawLine(pos, pos + Vector2D(0, -16));
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gl.DrawLine(pos, pos + Vector2D(-14, 8));
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gl.DrawLine(pos, pos + Vector2D(14, 8));
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break;
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case DRAG_SMALL_SQUARE:
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gl.DrawRectangle(pos - 4, pos + 4);
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break;
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case DRAG_SMALL_CIRCLE:
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gl.DrawCircle(pos, 4);
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break;
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default:
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break;
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}
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}
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void VisualDraggableFeature::StartDrag() {
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start = pos;
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}
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void VisualDraggableFeature::UpdateDrag(Vector2D d, bool single_axis) {
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if (single_axis)
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d = d.SingleAxis();
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pos = start + d;
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}
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bool VisualDraggableFeature::HasMoved() const {
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return pos != start;
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}
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