Merge remote-tracking branch 'origind-dev/master'

Add align to video function

src/bitmaps/manifest.respack

@@ -51,6 +51,11 @@ button/bugtracker_button_24.png
 button/bugtracker_button_32.png
 button/bugtracker_button_48.png
 button/bugtracker_button_64.png
+button/button_align_16.png
+button/button_align_24.png
+button/button_align_32.png
+button/button_align_48.png
+button/button_align_64.png
 button/button_audio_commit_16.png
 button/button_audio_commit_24.png
 button/button_audio_commit_32.png

src/colour_button.h

@@ -43,6 +43,12 @@ public:
 
 	/// Get the currently selected color
 	agi::Color GetColor() { return colour; }
+
+	void SetColor(agi::Color color)
+	{
+		colour = color;
+		UpdateBitmap();
+	}
 };
 
 struct ColorValidator final : public wxValidator {

src/command/time.cpp

@@ -235,6 +235,18 @@ struct time_snap_scene final : public validate_video_loaded {
 	}
 };
 
+struct time_align_subtitle_to_point final : public validate_video_loaded {
+	CMD_NAME("time/align")
+	CMD_ICON(button_align)
+	STR_MENU("Align subtitle to video")
+	STR_DISP("Align subtitle to video")
+	STR_HELP("Align subtitle to video by key points.")
+	void operator()(agi::Context* c) override {
+		c->videoController->Stop();
+		ShowAlignToVideoDialog(c);
+	}
+};
+
 struct time_add_lead_both final : public Command {
 	CMD_NAME("time/lead/both")
 	STR_MENU("Add lead in and out")
@@ -393,6 +405,7 @@ namespace cmd {
 		reg(agi::make_unique<time_snap_end_video>());
 		reg(agi::make_unique<time_snap_scene>());
 		reg(agi::make_unique<time_snap_start_video>());
+		reg(agi::make_unique<time_align_subtitle_to_point>());
 		reg(agi::make_unique<time_start_decrease>());
 		reg(agi::make_unique<time_start_increase>());
 	}

src/dialog_align.cpp

@@ -0,0 +1,378 @@
+// Copyright (c) 2019, Charlie Jiang
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Aegisub Project http://www.aegisub.org/
+
+#include "ass_dialogue.h"
+#include "ass_file.h"
+#include "compat.h"
+#include "dialog_manager.h"
+#include "format.h"
+#include "include/aegisub/context.h"
+#include "video_frame.h"
+#include "libresrc/libresrc.h"
+#include "options.h"
+#include "project.h"
+#include "selection_controller.h"
+#include "video_controller.h"
+#include "async_video_provider.h"
+#include "colour_button.h"
+#include "image_position_picker.h"
+
+#include <cmath>
+
+#include <libaegisub/ass/time.h>
+#include <libaegisub/vfr.h>
+
+#include <wx/dialog.h>
+#include <wx/sizer.h>
+#include <wx/textctrl.h>
+#if BOOST_VERSION >= 106900
+#include <boost/gil.hpp>
+#else
+#include <boost/gil/gil_all.hpp>
+#endif
+
+namespace {
+	class DialogAlignToVideo final : public wxDialog {
+		agi::Context* context;
+		AsyncVideoProvider* provider;
+
+		wxImage preview_image;
+		VideoFrame current_frame;
+		int current_n_frame;
+
+		ImagePositionPicker* preview_frame;
+		ColourButton* selected_color;
+		wxTextCtrl* selected_x;
+		wxTextCtrl* selected_y;
+		wxTextCtrl* selected_tolerance;
+
+		void update_from_textbox();
+		void update_from_textbox(wxCommandEvent&);
+
+		bool check_exists(int pos, int x, int y, int* lrud, double* orig, unsigned char tolerance);
+		void process(wxCommandEvent&);
+	public:
+		DialogAlignToVideo(agi::Context* context);
+		~DialogAlignToVideo();
+	};
+
+	DialogAlignToVideo::DialogAlignToVideo(agi::Context* context)
+		: wxDialog(context->parent, -1, _("Align subtitle to video by key point"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxMAXIMIZE_BOX | wxRESIZE_BORDER)
+		, context(context), provider(context->project->VideoProvider())
+	{
+		auto add_with_label = [&](wxSizer * sizer, wxString const& label, wxWindow * ctrl) {
+			sizer->Add(new wxStaticText(this, -1, label), 0, wxLEFT | wxRIGHT | wxCENTER, 3);
+			sizer->Add(ctrl, 1, wxLEFT);
+		};
+
+		auto tolerance = OPT_GET("Tool/Align to Video/Tolerance")->GetInt();
+		auto maximized = OPT_GET("Tool/Align to Video/Maximized")->GetBool();
+
+		current_n_frame = context->videoController->GetFrameN();
+		current_frame = *context->project->VideoProvider()->GetFrame(current_n_frame, 0, true);
+		preview_image = GetImage(current_frame);
+
+		preview_frame = new ImagePositionPicker(this, preview_image, [&](int x, int y, unsigned char r, unsigned char g, unsigned char b) -> void {
+			selected_x->ChangeValue(wxString::Format(wxT("%i"), x));
+			selected_y->ChangeValue(wxString::Format(wxT("%i"), y));
+
+			selected_color->SetColor(agi::Color(r, g, b));
+			});
+		selected_color = new ColourButton(this, wxSize(55, 16), true, agi::Color("FFFFFF"));
+		selected_color->SetToolTip(_("The key color to be followed."));
+		selected_x = new wxTextCtrl(this, -1, "0");
+		selected_x->SetToolTip(_("The x coord of the key point."));
+		selected_y = new wxTextCtrl(this, -1, "0");
+		selected_y->SetToolTip(_("The y coord of the key point."));
+		selected_tolerance = new wxTextCtrl(this, -1, wxString::Format(wxT("%i"), int(tolerance)));
+		selected_tolerance->SetToolTip(_("Max tolerance of the color."));
+
+		selected_x->Bind(wxEVT_TEXT, &DialogAlignToVideo::update_from_textbox, this);
+		selected_y->Bind(wxEVT_TEXT, &DialogAlignToVideo::update_from_textbox, this);
+		update_from_textbox();
+
+		wxFlexGridSizer* right_sizer = new wxFlexGridSizer(4, 2, 5, 5);
+		add_with_label(right_sizer, _("X"), selected_x);
+		add_with_label(right_sizer, _("Y"), selected_y);
+		add_with_label(right_sizer, _("Color"), selected_color);
+		add_with_label(right_sizer, _("Tolerance"), selected_tolerance);
+		right_sizer->AddGrowableCol(1, 1);
+
+		wxSizer* main_sizer = new wxBoxSizer(wxHORIZONTAL);
+
+		main_sizer->Add(preview_frame, 1, (wxALL & ~wxRIGHT) | wxEXPAND, 5);
+		main_sizer->Add(right_sizer, 0, wxALIGN_LEFT, 5);
+
+		wxSizer* dialog_sizer = new wxBoxSizer(wxVERTICAL);
+		dialog_sizer->Add(main_sizer, wxSizerFlags(1).Border(wxALL & ~wxBOTTOM).Expand());
+		dialog_sizer->Add(CreateButtonSizer(wxOK | wxCANCEL), wxSizerFlags().Right().Border());
+		SetSizerAndFit(dialog_sizer);
+		SetSize(1024, 700);
+		CenterOnParent();
+
+		Bind(wxEVT_BUTTON, &DialogAlignToVideo::process, this, wxID_OK);
+		SetIcon(GETICON(button_align_16));
+		if (maximized)
+			wxDialog::Maximize(true);
+	}
+
+	DialogAlignToVideo::~DialogAlignToVideo()
+	{
+		long lt;
+		if (!selected_tolerance->GetValue().ToLong(&lt))
+			return;
+		if (lt < 0 || lt > 255)
+			return;
+
+		OPT_SET("Tool/Align to Video/Tolerance")->SetInt(lt);
+	}
+
+	void rgb2lab(unsigned char r, unsigned char g, unsigned char b, double* lab)
+	{
+		double R = static_cast<double>(r) / 255.0;
+		double G = static_cast<double>(g) / 255.0;
+		double B = static_cast<double>(b) / 255.0;
+		double X = 0.412453 * R + 0.357580 * G + 0.180423 * B;
+		double Y = 0.212671 * R + 0.715160 * G + 0.072169 * B;
+		double Z = 0.019334 * R + 0.119193 * G + 0.950227 * B;
+		double xr = X / 0.950456, yr = Y / 1.000, zr = Z / 1.088854;
+
+		if (yr > 0.008856) {
+			lab[0] = 116.0 * pow(yr, 1.0 / 3.0) - 16.0;
+		}
+		else {
+			lab[0] = 903.3 * yr;
+		}
+
+		double fxr, fyr, fzr;
+		if (xr > 0.008856)
+			fxr = pow(xr, 1.0 / 3.0);
+		else
+			fxr = 7.787 * xr + 16.0 / 116.0;
+
+		if (yr > 0.008856)
+			fyr = pow(yr, 1.0 / 3.0);
+		else
+			fyr = 7.787 * yr + 16.0 / 116.0;
+
+		if (zr > 0.008856)
+			fzr = pow(zr, 1.0 / 3.0);
+		else
+			fzr = 7.787 * zr + 16.0 / 116.0;
+
+		lab[1] = 500.0 * (fxr - fyr);
+		lab[2] = 200.0 * (fyr - fzr);
+	}
+
+	template<typename T>
+	bool check_point(boost::gil::pixel<unsigned char, T> & pixel, double orig[3], unsigned char tolerance)
+	{
+		double lab[3];
+		// in pixel: B,G,R
+		rgb2lab(pixel[2], pixel[1], pixel[0], lab);
+		auto diff = sqrt(pow(lab[0] - orig[0], 2) + pow(lab[1] - orig[1], 2) + pow(lab[2] - orig[2], 2));
+		return diff < tolerance;
+	}
+
+	template<typename T>
+	bool calculate_point(boost::gil::image_view<T> view, int x, int y, double orig[3], unsigned char tolerance, int* ret)
+	{
+		auto origin = *view.at(x, y);
+		if (!check_point(origin, orig, tolerance))
+			return false;
+		auto w = view.width();
+		auto h = view.height();
+		int l = x, r = x, u = y, d = y;
+		for (int i = x + 1; i < w; i++)
+		{
+			auto p = *view.at(i, y);
+			if (!check_point(p, orig, tolerance))
+			{
+				r = i;
+				break;
+			}
+		}
+
+		for (int i = x - 1; i >= 0; i--)
+		{
+			auto p = *view.at(i, y);
+			if (!check_point(p, orig, tolerance))
+			{
+				l = i;
+				break;
+			}
+		}
+
+		for (int i = y + 1; i < h; i++)
+		{
+			auto p = *view.at(x, i);
+			if (!check_point(p, orig, tolerance))
+			{
+				d = i;
+				break;
+			}
+		}
+
+		for (int i = y - 1; i >= 0; i--)
+		{
+			auto p = *view.at(x, i);
+			if (!check_point(p, orig, tolerance))
+			{
+				u = i;
+				break;
+			}
+		}
+		ret[0] = l;
+		ret[1] = r;
+		ret[2] = u;
+		ret[3] = d;
+		return true;
+	}
+
+	void DialogAlignToVideo::process(wxCommandEvent & evt)
+	{
+		auto n_frames = provider->GetFrameCount();
+		auto w = provider->GetWidth();
+		auto h = provider->GetHeight();
+
+		long lx, ly, lt;
+		if (!selected_x->GetValue().ToLong(&lx) || !selected_y->GetValue().ToLong(&ly) || !selected_tolerance->GetValue().ToLong(&lt))
+		{
+			wxMessageBox(_("Bad x or y position or tolerance value!"));
+			evt.Skip();
+			return;
+		}
+		if (lx < 0 || ly < 0 || lx >= w || ly >= h)
+		{
+			wxMessageBox(wxString::Format(_("Bad x or y position! Require: 0 <= x < %i, 0 <= y < %i"), w, h));
+			evt.Skip();
+			return;
+		}
+		if (lt < 0 || lt > 255)
+		{
+			wxMessageBox(_("Bad tolerance value! Require: 0 <= torlerance <= 255"));
+			evt.Skip();
+			return;
+		}
+		int x = int(lx), y = int(ly);
+		unsigned char tolerance = unsigned char(lt);
+
+		auto color = selected_color->GetColor();
+		auto r = color.r;
+		auto b = color.b;
+		auto g = color.g;
+		double lab[3];
+		rgb2lab(r, g, b, lab);
+
+		int pos = current_n_frame;
+		auto frame = provider->GetFrame(pos, -1, true);
+		auto view = interleaved_view(frame->width, frame->height, reinterpret_cast<boost::gil::bgra8_pixel_t*>(frame->data.data()), frame->pitch);
+		if (frame->flipped)
+			y = frame->height - y;
+		int lrud[4];
+		calculate_point(view, x, y, lab, tolerance, lrud);
+
+		// find forward
+#define CHECK_EXISTS_POS check_exists(pos, x, y, lrud, lab, tolerance)
+		while (pos >= 0)
+		{
+			if (CHECK_EXISTS_POS)
+				pos -= 2;
+			else break;
+		}
+		pos++;
+		pos = std::max(0, pos);
+		auto left = CHECK_EXISTS_POS ? pos : pos + 1;
+
+		pos = current_n_frame;
+		while (pos < n_frames)
+		{
+			if (CHECK_EXISTS_POS)
+				pos += 2;
+			else break;
+		}
+		pos--;
+		pos = std::min(pos, n_frames - 1);
+		auto right = CHECK_EXISTS_POS ? pos : pos - 1;
+
+		auto timecode = context->project->Timecodes();
+		auto line = context->selectionController->GetActiveLine();
+		line->Start = timecode.TimeAtFrame(left);
+		line->End = timecode.TimeAtFrame(right + 1); // exclusive
+		context->ass->Commit(_("Align to video by key point"), AssFile::COMMIT_DIAG_TIME);
+		Close();
+	}
+
+
+
+	bool DialogAlignToVideo::check_exists(int pos, int x, int y, int* lrud, double* orig, unsigned char tolerance)
+	{
+		auto frame = provider->GetFrame(pos, -1, true);
+		auto view = interleaved_view(frame->width, frame->height, reinterpret_cast<boost::gil::bgra8_pixel_t*>(frame->data.data()), frame->pitch);
+		if (frame->flipped)
+			y = frame->height - y;
+		int actual[4];
+		if (!calculate_point(view, x, y, orig, tolerance, actual)) return false;
+		int dl = abs(actual[0] - lrud[0]);
+		int dr = abs(actual[1] - lrud[1]);
+		int du = abs(actual[2] - lrud[2]);
+		int dd = abs(actual[3] - lrud[3]);
+
+		return dl <= 5 && dr <= 5 && du <= 5 && dd <= 5;
+	}
+
+	void DialogAlignToVideo::update_from_textbox()
+	{
+		long lx, ly;
+		int w = preview_image.GetWidth(), h = preview_image.GetHeight();
+		if (!selected_x->GetValue().ToLong(&lx) || !selected_y->GetValue().ToLong(&ly))
+			return;
+
+		if (lx < 0 || ly < 0 || lx >= w || ly >= h)
+			return;
+		int x = int(lx);
+		int y = int(ly);
+		auto r = preview_image.GetRed(x, y);
+		auto g = preview_image.GetGreen(x, y);
+		auto b = preview_image.GetBlue(x, y);
+		selected_color->SetColor(agi::Color(r, g, b));
+	}
+
+	void DialogAlignToVideo::update_from_textbox(wxCommandEvent & evt)
+	{
+		update_from_textbox();
+	}
+
+}
+
+
+void ShowAlignToVideoDialog(agi::Context * c)
+{
+	c->dialog->Show<DialogAlignToVideo>(c);
+}

src/dialogs.h

@@ -74,3 +74,4 @@ void ShowSpellcheckerDialog(agi::Context *c);
 void ShowStyleManagerDialog(agi::Context *c);
 void ShowTimingProcessorDialog(agi::Context *c);
 void ShowVideoDetailsDialog(agi::Context *c);
+void ShowAlignToVideoDialog(agi::Context* c);

src/hotkey.cpp

@@ -29,6 +29,11 @@
 #include <wx/msgdlg.h>
 
 namespace {
+	const char* added_hotkeys_cj[][3] = {
+		{"time/align", "Video", "KP_TAB"},
+		{nullptr}
+	};
+
 	const char *added_hotkeys_7035[][3] = {
 		{"audio/play/line", "Audio", "R"},
 		{nullptr}
@@ -81,6 +86,11 @@ void init() {
 
 	auto migrations = OPT_GET("App/Hotkey Migrations")->GetListString();
 
+	if (boost::find(migrations, "cj") == end(migrations)) {
+		migrate_hotkeys(added_hotkeys_cj);
+		migrations.emplace_back("cj");
+	}
+
 	if (boost::find(migrations, "7035") == end(migrations)) {
 		migrate_hotkeys(added_hotkeys_7035);
 		migrations.emplace_back("7035");

src/image_position_picker.cpp

@@ -0,0 +1,127 @@
+#include "image_position_picker.h"
+BEGIN_EVENT_TABLE(ImagePositionPicker, wxPanel)
+	// some useful events
+	/*
+	 EVT_MOTION(ImagePositionPicker::mouseMoved)
+	 EVT_LEFT_DOWN(ImagePositionPicker::mouseDown)
+	 EVT_LEFT_UP(ImagePositionPicker::mouseReleased)
+	 EVT_RIGHT_DOWN(ImagePositionPicker::rightClick)
+	 EVT_LEAVE_WINDOW(ImagePositionPicker::mouseLeftWindow)
+	 EVT_KEY_DOWN(ImagePositionPicker::keyPressed)
+	 EVT_KEY_UP(ImagePositionPicker::keyReleased)
+	 EVT_MOUSEWHEEL(ImagePositionPicker::mouseWheelMoved)
+	 */
+
+	 // catch paint events
+	EVT_PAINT(ImagePositionPicker::paintEvent)
+	//Size event
+	EVT_SIZE(ImagePositionPicker::OnSize)
+	EVT_MOUSE_EVENTS(ImagePositionPicker::OnMouseEvent)
+END_EVENT_TABLE()
+
+
+// some useful events
+/*
+ void ImagePositionPicker::mouseMoved(wxMouseEvent& event) {}
+ void ImagePositionPicker::mouseDown(wxMouseEvent& event) {}
+ void ImagePositionPicker::mouseWheelMoved(wxMouseEvent& event) {}
+ void ImagePositionPicker::mouseReleased(wxMouseEvent& event) {}
+ void ImagePositionPicker::rightClick(wxMouseEvent& event) {}
+ void ImagePositionPicker::mouseLeftWindow(wxMouseEvent& event) {}
+ void ImagePositionPicker::keyPressed(wxKeyEvent& event) {}
+ void ImagePositionPicker::keyReleased(wxKeyEvent& event) {}
+ */
+
+ImagePositionPicker::ImagePositionPicker(wxWindow* parent, wxImage i, updator upd) : wxPanel(parent)
+{
+	image = i;
+	prevW = -1;
+	prevH = -1;
+	w = image.GetWidth();
+	h = image.GetHeight();
+	update = upd;
+}
+
+/*
+ * Called by the system of by wxWidgets when the panel needs
+ * to be redrawn. You can also trigger this call by
+ * calling Refresh()/Update().
+ */
+
+void ImagePositionPicker::paintEvent(wxPaintEvent& evt)
+{
+	// depending on your system you may need to look at double-buffered dcs
+	wxPaintDC dc(this);
+	render(dc);
+}
+
+/*
+ * Alternatively, you can use a clientDC to paint on the panel
+ * at any time. Using this generally does not free you from
+ * catching paint events, since it is possible that e.g. the window
+ * manager throws away your drawing when the window comes to the
+ * background, and expects you will redraw it when the window comes
+ * back (by sending a paint event).
+ */
+void ImagePositionPicker::paintNow()
+{
+	// depending on your system you may need to look at double-buffered dcs
+	wxClientDC dc(this);
+	render(dc);
+}
+
+/*
+ * Here we do the actual rendering. I put it in a separate
+ * method so that it can work no matter what type of DC
+ * (e.g. wxPaintDC or wxClientDC) is used.
+ */
+void ImagePositionPicker::render(wxDC& dc)
+{
+	int neww, newh;
+	dc.GetSize(&neww, &newh);
+
+	if (neww != prevW || newh != prevH)
+	{
+		// keep the image proportionate
+		int ww, hh;
+		if (double(neww) / w >= double(newh) / h) // too long
+		{
+			ww = newh * w / h;
+			hh = newh;
+		}
+		else
+		{
+			ww = neww;
+			hh = neww * h / w;
+		}
+		resized = wxBitmap(image.Scale(ww, hh /*, wxIMAGE_QUALITY_HIGH*/));
+		prevW = ww;
+		prevH = hh;
+		dc.DrawBitmap(resized, 0, 0, false);
+	}
+	else {
+		dc.DrawBitmap(resized, 0, 0, false);
+	}
+}
+
+/*
+ * Here we call refresh to tell the panel to draw itself again.
+ * So when the user resizes the image panel the image should be resized too.
+ */
+void ImagePositionPicker::OnSize(wxSizeEvent& event) {
+	Refresh();
+	//skip the event.
+	event.Skip();
+}
+
+void ImagePositionPicker::OnMouseEvent(wxMouseEvent& evt)
+{
+	wxPoint pos = evt.GetPosition();
+	if (evt.Dragging() || evt.LeftDown() || evt.LeftUp())
+	{
+		int x = pos.x * w / prevW;
+		int y = pos.y * h / prevH;
+		if (x >= 0 && x < w && y >= 0 && y < h)
+			update(x, y, image.GetRed(x, y), image.GetGreen(x, y), image.GetBlue(x, y));
+	}
+}

src/image_position_picker.h

@@ -0,0 +1,37 @@
+#include <wx/wx.h>
+#include <wx/sizer.h>
+#include "gl_wrap.h"
+
+typedef std::function<void(double, double, unsigned char, unsigned char, unsigned char)> updator;
+
+class ImagePositionPicker : public wxPanel
+{
+	wxImage image;
+	wxBitmap resized;
+	int prevW, prevH, w, h;
+
+	updator update;
+
+public:
+	ImagePositionPicker(wxWindow* parent, wxImage i, updator upd);
+
+	void paintEvent(wxPaintEvent & evt);
+	void paintNow();
+	void OnSize(wxSizeEvent& event);
+	void OnMouseEvent(wxMouseEvent& evt);
+	void render(wxDC& dc);
+
+	// some useful events
+	/*
+	 void mouseMoved(wxMouseEvent& event);
+	 void mouseDown(wxMouseEvent& event);
+	 void mouseWheelMoved(wxMouseEvent& event);
+	 void mouseReleased(wxMouseEvent& event);
+	 void rightClick(wxMouseEvent& event);
+	 void mouseLeftWindow(wxMouseEvent& event);
+	 void keyPressed(wxKeyEvent& event);
+	 void keyReleased(wxKeyEvent& event);
+	 */
+
+	DECLARE_EVENT_TABLE()
+};

src/libresrc/default_config.json

@@ -575,6 +575,10 @@
 		},
 		"Visual" : {
 			"Autohide": false
+		},
+		"Align to Video" : {
+			"Tolerance" : 20,
+			"Maximized" : true
 		}
 	},
 

src/libresrc/default_hotkey.json

@@ -286,6 +286,9 @@
 		],
 		"video/frame/prev/large" : [
 			"Alt-Left"
+		],
+		"time/align" : [
+			"KP_TAB"
 		]
 	},
 	"Translation Assistant" : {

src/libresrc/default_toolbar.json

@@ -42,6 +42,7 @@
         "subtitle/select/visible",
         "time/snap/scene",
         "time/frame/current",
+        "time/align",
         "",
         "tool/style/manager",
         "subtitle/properties",

src/meson.build

@@ -56,6 +56,7 @@ aegisub_src = files(
     'context.cpp',
     'crash_writer.cpp',
     'dialog_about.cpp',
+    'dialog_align.cpp',
     'dialog_attachments.cpp',
     'dialog_automation.cpp',
     'dialog_autosave.cpp',
@@ -97,6 +98,7 @@ aegisub_src = files(
     'help_button.cpp',
     'hotkey.cpp',
     'hotkey_data_view_model.cpp',
+    'image_position_picker.cpp',
     'initial_line_state.cpp',
     'main.cpp',
     'menu.cpp',