forked from mia/Aegisub
117 lines
3.9 KiB
C++
117 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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//
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// $Id$
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/// @file visual_tool_scale.cpp
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/// @brief X/Y scaling visual typesetting tool
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/// @ingroup visual_ts
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#include "config.h"
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#ifndef AGI_PRE
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#include <cmath>
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#endif
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#include "visual_tool_scale.h"
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#include "utils.h"
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VisualToolScale::VisualToolScale(VideoDisplay *parent, agi::Context *context)
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: VisualTool<VisualDraggableFeature>(parent, context)
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{
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}
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void VisualToolScale::Draw() {
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if (!active_line) return;
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// The length in pixels of the 100% zoom
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static const int base_len = 160;
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// The width of the y scale guide/height of the x scale guide
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static const int guide_size = 10;
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// Ensure that the scaling UI is comfortably visible on screen
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Vector2D base_point = pos
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.Max(Vector2D(base_len / 2 + guide_size, base_len / 2 + guide_size))
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.Min(video_res - base_len / 2 - guide_size * 3);
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// Set the origin to the base point and apply the line's rotation
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gl.SetOrigin(base_point);
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gl.SetRotation(rx, ry, rz);
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Vector2D scale_half_length = scale * base_len / 200;
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float minor_dim_offset = base_len / 2 + guide_size * 1.5f;
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// The ends of the current scale amount lines
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Vector2D x_p1(minor_dim_offset, -scale_half_length.Y());
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Vector2D x_p2(minor_dim_offset, scale_half_length.Y());
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Vector2D y_p1(-scale_half_length.X(), minor_dim_offset);
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Vector2D y_p2(scale_half_length.X(), minor_dim_offset);
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// Current scale amount lines
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gl.SetLineColour(colour[3], 1.f, 2);
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gl.DrawLine(x_p1, x_p2);
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gl.DrawLine(y_p1, y_p2);
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// Fake features at the end of the lines
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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(x_p1, 4);
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gl.DrawCircle(x_p2, 4);
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gl.DrawCircle(y_p1, 4);
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gl.DrawCircle(y_p2, 4);
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// Draw the guides
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int half_len = base_len / 2;
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gl.SetLineColour(colour[0], 1.f, 1);
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gl.DrawRectangle(Vector2D(half_len, -half_len), Vector2D(half_len + guide_size, half_len));
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gl.DrawRectangle(Vector2D(-half_len, half_len), Vector2D(half_len, half_len + guide_size));
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// Draw the feet
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gl.SetLineColour(colour[0], 1.f, 2);
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gl.DrawLine(Vector2D(half_len + guide_size, -half_len), Vector2D(half_len + guide_size + guide_size / 2, -half_len));
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gl.DrawLine(Vector2D(half_len + guide_size, half_len), Vector2D(half_len + guide_size + guide_size / 2, half_len));
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gl.DrawLine(Vector2D(-half_len, half_len + guide_size), Vector2D(-half_len, half_len + guide_size + guide_size / 2));
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gl.DrawLine(Vector2D(half_len, half_len + guide_size), Vector2D(half_len, half_len + guide_size + guide_size / 2));
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gl.ResetTransform();
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}
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bool VisualToolScale::InitializeHold() {
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initial_scale = scale;
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return true;
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}
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void VisualToolScale::UpdateHold() {
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Vector2D delta = (mouse_pos - drag_start) * Vector2D(1, -1);
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if (shift_down)
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delta = delta.SingleAxis();
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scale = Vector2D(0, 0).Max(delta * 1.25f + initial_scale);
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if (ctrl_down)
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scale = scale.Round(25.f);
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SetSelectedOverride("\\fscx", wxString::Format("%d", (int)scale.X()));
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SetSelectedOverride("\\fscy", wxString::Format("%d", (int)scale.Y()));
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}
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void VisualToolScale::DoRefresh() {
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if (!active_line) return;
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GetLineScale(active_line, scale);
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GetLineRotation(active_line, rx, ry, rz);
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pos = FromScriptCoords(GetLinePosition(active_line));
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}
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