Aegisub/aegisub/src/video_display.cpp

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// Copyright (c) 2005-2007, Rodrigo Braz Monteiro
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// 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/
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//
// $Id$
/// @file video_display.cpp
/// @brief Control displaying a video frame obtained from the video context
/// @ingroup video main_ui
///
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////////////
// Includes
#include "config.h"
#include <wx/glcanvas.h>
#ifdef __APPLE__
#include <OpenGL/GL.h>
#include <OpenGL/glu.h>
#else
#include <GL/gl.h>
#include <GL/glu.h>
#endif
#include <wx/image.h>
#include <string.h>
#include <wx/clipbrd.h>
#include <wx/filename.h>
#include <wx/config.h>
#include "utils.h"
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#include "video_display.h"
#include "video_provider_manager.h"
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#include "vfr.h"
#include "ass_file.h"
#include "ass_time.h"
#include "ass_dialogue.h"
#include "ass_style.h"
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#include "subs_grid.h"
#include "vfw_wrap.h"
#include "mkv_wrap.h"
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#include "options.h"
#include "subs_edit_box.h"
#include "audio_display.h"
#include "main.h"
#include "video_slider.h"
#include "video_box.h"
#include "gl_wrap.h"
#include "visual_tool.h"
#include "visual_tool_cross.h"
#include "visual_tool_rotatez.h"
#include "visual_tool_rotatexy.h"
#include "visual_tool_scale.h"
#include "visual_tool_clip.h"
#include "visual_tool_vector_clip.h"
#include "visual_tool_drag.h"
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///////
// IDs
enum {
/// DOCME
VIDEO_MENU_COPY_COORDS = 1230,
/// DOCME
VIDEO_MENU_COPY_TO_CLIPBOARD,
/// DOCME
VIDEO_MENU_COPY_TO_CLIPBOARD_RAW,
/// DOCME
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VIDEO_MENU_SAVE_SNAPSHOT,
/// DOCME
VIDEO_MENU_SAVE_SNAPSHOT_RAW
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};
///////////////
// Event table
BEGIN_EVENT_TABLE(VideoDisplay, wxGLCanvas)
EVT_MOUSE_EVENTS(VideoDisplay::OnMouseEvent)
EVT_KEY_DOWN(VideoDisplay::OnKey)
EVT_PAINT(VideoDisplay::OnPaint)
EVT_SIZE(VideoDisplay::OnSizeEvent)
EVT_ERASE_BACKGROUND(VideoDisplay::OnEraseBackground)
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EVT_MENU(VIDEO_MENU_COPY_COORDS,VideoDisplay::OnCopyCoords)
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EVT_MENU(VIDEO_MENU_COPY_TO_CLIPBOARD,VideoDisplay::OnCopyToClipboard)
EVT_MENU(VIDEO_MENU_SAVE_SNAPSHOT,VideoDisplay::OnSaveSnapshot)
EVT_MENU(VIDEO_MENU_COPY_TO_CLIPBOARD_RAW,VideoDisplay::OnCopyToClipboardRaw)
EVT_MENU(VIDEO_MENU_SAVE_SNAPSHOT_RAW,VideoDisplay::OnSaveSnapshotRaw)
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END_EVENT_TABLE()
/// DOCME
int attribList[] = { WX_GL_RGBA , WX_GL_DOUBLEBUFFER, WX_GL_STENCIL_SIZE, 8, 0 };
/// @brief Constructor
/// @param parent
/// @param id
/// @param pos
/// @param size
/// @param style
/// @param name
///
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VideoDisplay::VideoDisplay(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style, const wxString& name)
#ifdef __WXMAC__
: wxGLCanvas (parent, id, pos, size, style, name, attribList)
#else
: wxGLCanvas (parent, id, attribList, pos, size, style, name)
#endif
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{
// Set options
box = NULL;
locked = false;
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ControlSlider = NULL;
PositionDisplay = NULL;
w=h=dx2=dy2=8;
dx1=dy1=0;
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origSize = size;
zoomValue = 1.0;
freeSize = false;
visual = NULL;
SetCursor(wxNullCursor);
visualMode = -1;
SetVisualMode(0);
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}
/// @brief Destructor
///
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VideoDisplay::~VideoDisplay () {
delete visual;
visual = NULL;
VideoContext::Get()->RemoveDisplay(this);
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}
/// @brief Show cursor
/// @param show
///
void VideoDisplay::ShowCursor(bool show) {
// Show
if (show) SetCursor(wxNullCursor);
// Hide
else {
// Bleeeh! Hate this 'solution':
#if __WXGTK__
static char cursor_image[] = {0};
wxCursor cursor(cursor_image, 8, 1, -1, -1, cursor_image);
#else
wxCursor cursor(wxCURSOR_BLANK);
#endif // __WXGTK__
SetCursor(cursor);
}
}
/// @brief Render
/// @return
///
void VideoDisplay::Render()
// Yes it's legal C++ to replace the body of a function with one huge try..catch statement
try {
// Is shown?
if (!IsShownOnScreen()) return;
if (!wxIsMainThread()) throw _T("Error: trying to render from non-primary thread");
// Get video context
VideoContext *context = VideoContext::Get();
wxASSERT(context);
if (!context->IsLoaded()) return;
// Set GL context
//wxMutexLocker glLock(OpenGLWrapper::glMutex);
SetCurrent(*context->GetGLContext(this));
// Get sizes
int w,h,sw,sh,pw,ph;
GetClientSize(&w,&h);
wxASSERT(w > 0);
wxASSERT(h > 0);
context->GetScriptSize(sw,sh);
pw = context->GetWidth();
ph = context->GetHeight();
wxASSERT(pw > 0);
wxASSERT(ph > 0);
// Clear frame buffer
glClearColor(0,0,0,0);
if (glGetError()) throw _T("Error setting glClearColor().");
glClearStencil(0);
if (glGetError()) throw _T("Error setting glClearStencil().");
glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
if (glGetError()) throw _T("Error calling glClear().");
// Freesized transform
dx1 = 0;
dy1 = 0;
dx2 = w;
dy2 = h;
if (freeSize) {
// Set aspect ratio
float thisAr = float(w)/float(h);
float vidAr;
if (context->GetAspectRatioType() == 0) vidAr = float(pw)/float(ph);
else vidAr = context->GetAspectRatioValue();
// Window is wider than video, blackbox left/right
if (thisAr - vidAr > 0.01f) {
int delta = int(w-vidAr*h);
dx1 += delta/2;
dx2 -= delta;
}
// Video is wider than window, blackbox top/bottom
else if (vidAr - thisAr > 0.01f) {
int delta = int(h-w/vidAr);
dy1 += delta/2;
dy2 -= delta;
}
}
// Set viewport
glEnable(GL_TEXTURE_2D);
if (glGetError()) throw _T("Error enabling texturing.");
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glViewport(dx1,dy1,dx2,dy2);
if (glGetError()) throw _T("Error setting GL viewport.");
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f,sw,sh,0.0f,-1000.0f,1000.0f);
glMatrixMode(GL_MODELVIEW);
if (glGetError()) throw _T("Error setting up matrices (wtf?).");
glShadeModel(GL_FLAT);
// Texture mode
if (w != pw || h != ph) {
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
if (glGetError()) throw _T("Error setting texture parameter min filter.");
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
if (glGetError()) throw _T("Error setting texture parameter mag filter.");
}
else {
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
if (glGetError()) throw _T("Error setting texture parameter min filter.");
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
if (glGetError()) throw _T("Error setting texture parameter mag filter.");
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}
// Texture coordinates
float top = 0.0f;
float bot = context->GetTexH();
wxASSERT(bot != 0.0f);
if (context->IsInverted()) {
top = context->GetTexH();
bot = 0.0f;
}
float left = 0.0;
float right = context->GetTexW();
wxASSERT(right != 0.0f);
// Draw frame
glDisable(GL_BLEND);
if (glGetError()) throw _T("Error disabling blending.");
glBindTexture(GL_TEXTURE_2D, VideoContext::Get()->GetFrameAsTexture(-1));
if (glGetError()) throw _T("Error binding texture.");
glColor4f(1.0f,1.0f,1.0f,1.0f);
glBegin(GL_QUADS);
// Top-left
glTexCoord2f(left,top);
glVertex2f(0,0);
// Bottom-left
glTexCoord2f(left,bot);
glVertex2f(0,sh);
// Bottom-right
glTexCoord2f(right,bot);
glVertex2f(sw,sh);
// Top-right
glTexCoord2f(right,top);
glVertex2f(sw,0);
glEnd();
glDisable(GL_TEXTURE_2D);
// TV effects
DrawTVEffects();
// Draw overlay
if (visual) visual->Draw();
// Swap buffers
glFinish();
//if (glGetError()) throw _T("Error finishing gl operation.");
SwapBuffers();
}
catch (const wxChar *err) {
wxLogError(
_T("An error occurred trying to render the video frame to screen.\n")
_T("If you get this error regardless of which video file you use, and also if you use dummy video, Aegisub might not work with your graphics card's OpenGL driver.\n")
_T("Error message reported: %s"),
err);
VideoContext::Get()->Reset();
}
catch (...) {
wxLogError(
_T("An error occurred trying to render the video frame to screen.\n")
_T("If you get this error regardless of which video file you use, and also if you use dummy video, Aegisub might not work with your graphics card's OpenGL driver.\n")
_T("No further error message given."));
VideoContext::Get()->Reset();
}
/// @brief TV effects (overscan and so on)
///
void VideoDisplay::DrawTVEffects() {
// Get coordinates
int sw,sh;
VideoContext *context = VideoContext::Get();
context->GetScriptSize(sw,sh);
bool drawOverscan = Options.AsBool(_T("Show Overscan Mask"));
// Draw overscan mask
if (drawOverscan) {
// Get aspect ration
double ar = context->GetAspectRatioValue();
// Based on BBC's guidelines: http://www.bbc.co.uk/guidelines/dq/pdf/tv/tv_standards_london.pdf
// 16:9 or wider
if (ar > 1.75) {
DrawOverscanMask(int(sw * 0.1),int(sh * 0.05),wxColour(30,70,200),0.5);
DrawOverscanMask(int(sw * 0.035),int(sh * 0.035),wxColour(30,70,200),0.5);
}
// Less wide than 16:9 (use 4:3 standard)
else {
DrawOverscanMask(int(sw * 0.067),int(sh * 0.05),wxColour(30,70,200),0.5);
DrawOverscanMask(int(sw * 0.033),int(sh * 0.035),wxColour(30,70,200),0.5);
}
}
}
/// @brief Draw overscan mask
/// @param sizeH
/// @param sizeV
/// @param colour
/// @param alpha
///
void VideoDisplay::DrawOverscanMask(int sizeH,int sizeV,wxColour colour,double alpha) {
// Parameters
int sw,sh;
VideoContext *context = VideoContext::Get();
context->GetScriptSize(sw,sh);
int rad1 = int(sh * 0.05);
int gapH = sizeH+rad1;
int gapV = sizeV+rad1;
int rad2 = (int)sqrt(double(gapH*gapH + gapV*gapV))+1;
// Set up GL wrapper
OpenGLWrapper gl;
gl.SetFillColour(colour,alpha);
gl.SetLineColour(wxColour(0,0,0),0.0,1);
// Draw rectangles
gl.DrawRectangle(gapH,0,sw-gapH,sizeV); // Top
gl.DrawRectangle(sw-sizeH,gapV,sw,sh-gapV); // Right
gl.DrawRectangle(gapH,sh-sizeV,sw-gapH,sh); // Bottom
gl.DrawRectangle(0,gapV,sizeH,sh-gapV); // Left
// Draw corners
gl.DrawRing(gapH,gapV,rad1,rad2,1.0,180.0,270.0); // Top-left
gl.DrawRing(sw-gapH,gapV,rad1,rad2,1.0,90.0,180.0); // Top-right
gl.DrawRing(sw-gapH,sh-gapV,rad1,rad2,1.0,0.0,90.0); // Bottom-right
gl.DrawRing(gapH,sh-gapV,rad1,rad2,1.0,270.0,360.0); // Bottom-left
// Done
glDisable(GL_BLEND);
}
/// @brief Update size
/// @return
///
void VideoDisplay::UpdateSize() {
// Don't do anything if it's a free sizing display
//if (freeSize) return;
// Loaded?
VideoContext *con = VideoContext::Get();
wxASSERT(con);
if (!con->IsLoaded()) return;
if (!IsShownOnScreen()) return;
// Get size
if (freeSize) {
GetClientSize(&w,&h);
}
else {
if (con->GetAspectRatioType() == 0) w = int(con->GetWidth() * zoomValue);
else w = int(con->GetHeight() * zoomValue * con->GetAspectRatioValue());
h = int(con->GetHeight() * zoomValue);
}
int _w,_h;
if (w <= 1 || h <= 1) return;
locked = true;
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// Set the size for this control
SetSizeHints(w,h,w,h);
SetClientSize(w,h);
GetSize(&_w,&_h);
wxASSERT(_w > 0);
wxASSERT(_h > 0);
SetSizeHints(_w,_h,_w,_h);
box->VideoSizer->Fit(box);
// Layout
box->GetParent()->Layout();
SetClientSize(w,h);
GetSize(&_w,&_h);
SetMaxSize(wxSize(_w,_h));
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// Refresh
locked = false;
Refresh(false);
}
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/// @brief Resets
/// @return
///
void VideoDisplay::Reset() {
// Only calculate sizes if it's visible
if (!IsShownOnScreen()) return;
int w = origSize.GetX();
int h = origSize.GetY();
wxASSERT(w > 0);
wxASSERT(h > 0);
SetClientSize(w,h);
int _w,_h;
GetSize(&_w,&_h);
wxASSERT(_w > 0);
wxASSERT(_h > 0);
SetSizeHints(_w,_h,_w,_h);
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}
/// @brief Paint event
/// @param event
///
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void VideoDisplay::OnPaint(wxPaintEvent& event) {
wxPaintDC dc(this);
Render();
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}
/// @brief Size Event
/// @param event
///
void VideoDisplay::OnSizeEvent(wxSizeEvent &event) {
//Refresh(false);
if (freeSize) {
UpdateSize();
}
event.Skip();
}
/// @brief Mouse stuff
/// @param event
/// @return
///
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void VideoDisplay::OnMouseEvent(wxMouseEvent& event) {
// Locked?
if (locked) return;
// Mouse coordinates
mouse_x = event.GetX();
mouse_y = event.GetY();
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// Disable when playing
if (VideoContext::Get()->IsPlaying()) return;
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// Right click
if (event.ButtonUp(wxMOUSE_BTN_RIGHT)) {
// Create menu
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wxMenu menu;
menu.Append(VIDEO_MENU_SAVE_SNAPSHOT,_("Save PNG snapshot"));
menu.Append(VIDEO_MENU_COPY_TO_CLIPBOARD,_("Copy image to Clipboard"));
menu.AppendSeparator();
menu.Append(VIDEO_MENU_SAVE_SNAPSHOT_RAW,_("Save PNG snapshot (no subtitles)"));
menu.Append(VIDEO_MENU_COPY_TO_CLIPBOARD_RAW,_("Copy image to Clipboard (no subtitles)"));
menu.AppendSeparator();
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menu.Append(VIDEO_MENU_COPY_COORDS,_("Copy coordinates to Clipboard"));
// Show cursor and popup
ShowCursor(true);
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PopupMenu(&menu);
return;
}
// Enforce correct cursor display
ShowCursor(visualMode != 0);
// Click?
if (event.ButtonDown(wxMOUSE_BTN_ANY)) {
SetFocus();
}
// Send to visual
if (visual) visual->OnMouseEvent(event);
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}
/// @brief Key event
/// @param event
///
void VideoDisplay::OnKey(wxKeyEvent &event) {
// FIXME: should these be configurable?
// Think of the frenchmen and other people not using qwerty layout
if (event.GetKeyCode() == 'A') SetVisualMode(0);
if (event.GetKeyCode() == 'S') SetVisualMode(1);
if (event.GetKeyCode() == 'D') SetVisualMode(2);
if (event.GetKeyCode() == 'F') SetVisualMode(3);
if (event.GetKeyCode() == 'G') SetVisualMode(4);
if (event.GetKeyCode() == 'H') SetVisualMode(5);
if (event.GetKeyCode() == 'J') SetVisualMode(6);
event.Skip();
}
/// @brief Sets zoom level
/// @param value
///
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void VideoDisplay::SetZoom(double value) {
zoomValue = value;
UpdateSize();
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}
/// @brief Sets zoom position
/// @param value
///
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void VideoDisplay::SetZoomPos(int value) {
if (value < 0) value = 0;
if (value > 15) value = 15;
SetZoom(double(value+1)/8.0);
if (zoomBox->GetSelection() != value) zoomBox->SetSelection(value);
}
/// @brief Updates position display
///
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void VideoDisplay::UpdatePositionDisplay() {
// Update position display control
if (!PositionDisplay) {
throw _T("Position Display not set!");
}
// Get time
int frame_n = VideoContext::Get()->GetFrameN();
int time = VFR_Output.GetTimeAtFrame(frame_n,true,true);
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int temp = time;
int h=0, m=0, s=0, ms=0;
while (temp >= 3600000) {
temp -= 3600000;
h++;
}
while (temp >= 60000) {
temp -= 60000;
m++;
}
while (temp >= 1000) {
temp -= 1000;
s++;
}
ms = temp;
// Position display update
PositionDisplay->SetValue(wxString::Format(_T("%01i:%02i:%02i.%03i - %i"),h,m,s,ms,frame_n));
if (VideoContext::Get()->GetKeyFrames().Index(frame_n) != wxNOT_FOUND) {
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PositionDisplay->SetBackgroundColour(Options.AsColour(_T("Grid selection background")));
PositionDisplay->SetForegroundColour(Options.AsColour(_T("Grid selection foreground")));
}
else {
PositionDisplay->SetBackgroundColour(wxNullColour);
PositionDisplay->SetForegroundColour(wxNullColour);
}
// Subs position display update
UpdateSubsRelativeTime();
}
/// @brief Updates box with subs position relative to frame
///
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void VideoDisplay::UpdateSubsRelativeTime() {
// Set variables
wxString startSign;
wxString endSign;
int startOff,endOff;
int frame_n = VideoContext::Get()->GetFrameN();
AssDialogue *curLine = VideoContext::Get()->curLine;
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// Set start/end
if (curLine) {
int time = VFR_Output.GetTimeAtFrame(frame_n,true,true);
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startOff = time - curLine->Start.GetMS();
endOff = time - curLine->End.GetMS();
}
// Fallback to zero
else {
startOff = 0;
endOff = 0;
}
// Positive signs
if (startOff > 0) startSign = _T("+");
if (endOff > 0) endSign = _T("+");
// Update line
SubsPosition->SetValue(wxString::Format(_T("%s%ims; %s%ims"),startSign.c_str(),startOff,endSign.c_str(),endOff));
}
/// @brief Copy to clipboard
/// @param event
///
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void VideoDisplay::OnCopyToClipboard(wxCommandEvent &event) {
if (wxTheClipboard->Open()) {
wxTheClipboard->SetData(new wxBitmapDataObject(wxBitmap(VideoContext::Get()->GetFrame(-1).GetImage(),24)));
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wxTheClipboard->Close();
}
}
/// @brief Copy to clipboard (raw)
/// @param event
///
void VideoDisplay::OnCopyToClipboardRaw(wxCommandEvent &event) {
if (wxTheClipboard->Open()) {
wxTheClipboard->SetData(new wxBitmapDataObject(wxBitmap(VideoContext::Get()->GetFrame(-1,true).GetImage(),24)));
wxTheClipboard->Close();
}
}
/// @brief Save snapshot
/// @param event
///
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void VideoDisplay::OnSaveSnapshot(wxCommandEvent &event) {
VideoContext::Get()->SaveSnapshot(false);
}
/// @brief Save snapshot (raw)
/// @param event
///
void VideoDisplay::OnSaveSnapshotRaw(wxCommandEvent &event) {
VideoContext::Get()->SaveSnapshot(true);
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}
/// @brief Copy coordinates
/// @param event
///
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void VideoDisplay::OnCopyCoords(wxCommandEvent &event) {
if (wxTheClipboard->Open()) {
int sw,sh;
VideoContext::Get()->GetScriptSize(sw,sh);
int vx = (sw * mouse_x + w/2) / w;
int vy = (sh * mouse_y + h/2) / h;
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wxTheClipboard->SetData(new wxTextDataObject(wxString::Format(_T("%i,%i"),vx,vy)));
wxTheClipboard->Close();
}
}
/// @brief Convert mouse coordinates
/// @param x
/// @param y
///
void VideoDisplay::ConvertMouseCoords(int &x,int &y) {
int w,h;
GetClientSize(&w,&h);
wxASSERT(dx2 > 0);
wxASSERT(dy2 > 0);
wxASSERT(w > 0);
wxASSERT(h > 0);
x = (x-dx1)*w/dx2;
y = (y-dy1)*h/dy2;
}
/// @brief Set mode
/// @param mode
///
void VideoDisplay::SetVisualMode(int mode) {
// Set visual
if (visualMode != mode) {
// Get toolbar
wxToolBar *toolBar = NULL;
if (box) {
toolBar = box->visualSubToolBar;
toolBar->ClearTools();
toolBar->Realize();
toolBar->Show(false);
if (!box->visualToolBar->GetToolState(mode + Video_Mode_Standard)) box->visualToolBar->ToggleTool(mode + Video_Mode_Standard,true);
}
// Replace mode
visualMode = mode;
delete visual;
switch (mode) {
case 0: visual = new VisualToolCross(this); break;
case 1: visual = new VisualToolDrag(this,toolBar); break;
case 2: visual = new VisualToolRotateZ(this); break;
case 3: visual = new VisualToolRotateXY(this); break;
case 4: visual = new VisualToolScale(this); break;
case 5: visual = new VisualToolClip(this); break;
case 6: visual = new VisualToolVectorClip(this,toolBar); break;
default: visual = NULL;
}
// Update size to reflect toolbar changes
UpdateSize();
}
// Render
Render();
}