mirror of https://github.com/odrling/Aegisub
131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file visual_tool_rotatez.cpp
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/// @brief 2D rotation in Z axis visual typesetting tool
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/// @ingroup visual_ts
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#include "visual_tool_rotatez.h"
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#include <libaegisub/format.h>
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#include <cmath>
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#include <wx/colour.h>
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static const float deg2rad = 3.1415926536f / 180.f;
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static const float rad2deg = 180.f / 3.1415926536f;
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VisualToolRotateZ::VisualToolRotateZ(VideoDisplay *parent, agi::Context *context)
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: VisualTool<VisualDraggableFeature>(parent, context)
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, org(new Feature)
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{
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features.push_back(*org);
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org->type = DRAG_BIG_TRIANGLE;
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}
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void VisualToolRotateZ::Draw() {
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if (!active_line) return;
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DrawAllFeatures();
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float radius = (pos - org->pos).Len();
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float oRadius = radius;
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if (radius < 50)
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radius = 50;
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// Set up the projection
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gl.SetOrigin(org->pos);
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gl.SetRotation(rotation_x, rotation_y, 0);
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gl.SetScale(scale);
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// Draw the circle
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gl.SetLineColour(colour[0]);
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gl.SetFillColour(colour[1], 0.3f);
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gl.DrawRing(Vector2D(0, 0), radius + 4, radius - 4);
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// Draw markers around circle
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int markers = 6;
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float markStart = -90.f / markers;
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float markEnd = markStart + (180.f / markers);
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for (int i = 0; i < markers; ++i) {
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float angle = i * (360.f / markers);
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gl.DrawRing(Vector2D(0, 0), radius+30, radius+12, 1.0, angle+markStart, angle+markEnd);
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}
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// Draw the baseline through the origin showing current rotation
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Vector2D angle_vec(Vector2D::FromAngle(angle * deg2rad));
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gl.SetLineColour(colour[3], 1, 2);
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gl.DrawLine(angle_vec * -radius, angle_vec * radius);
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if (org->pos != pos) {
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Vector2D rotated_pos = Vector2D::FromAngle(angle * deg2rad - (pos - org->pos).Angle()) * oRadius;
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// Draw the line from origin to rotated position
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gl.DrawLine(Vector2D(), rotated_pos);
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// Draw the line under the text
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gl.DrawLine(rotated_pos - angle_vec * 20, rotated_pos + angle_vec * 20);
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}
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// Draw the fake features on the ring
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gl.SetLineColour(colour[0], 1.f, 1);
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gl.SetFillColour(colour[1], 0.3f);
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gl.DrawCircle(angle_vec * radius, 4);
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gl.DrawCircle(angle_vec * -radius, 4);
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// Clear the projection
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gl.ResetTransform();
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// Draw line to mouse if it isn't over the origin feature
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if (mouse_pos && (mouse_pos - org->pos).SquareLen() > 100) {
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gl.SetLineColour(colour[0]);
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gl.DrawLine(org->pos, mouse_pos);
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}
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}
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bool VisualToolRotateZ::InitializeHold() {
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orig_angle = angle + (org->pos - mouse_pos).Angle() * rad2deg;
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return true;
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}
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void VisualToolRotateZ::UpdateHold() {
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angle = orig_angle - (org->pos - mouse_pos).Angle() * rad2deg;
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if (ctrl_down)
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angle = floorf(angle / 30.f + .5f) * 30.f;
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angle = fmodf(angle + 360.f, 360.f);
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SetSelectedOverride("\\frz", agi::format("%.4g", angle));
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}
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void VisualToolRotateZ::UpdateDrag(Feature *feature) {
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SetOverride(active_line, "\\org", ToScriptCoords(feature->pos).PStr());
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}
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void VisualToolRotateZ::DoRefresh() {
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if (!active_line) return;
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pos = FromScriptCoords(GetLinePosition(active_line));
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if (!(org->pos = GetLineOrigin(active_line)))
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org->pos = pos;
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else
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org->pos = FromScriptCoords(org->pos);
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GetLineRotation(active_line, rotation_x, rotation_y, angle);
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GetLineScale(active_line, scale);
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}
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