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Aegisub/aegisub/video_display_visual.cpp
Rodrigo Braz Monteiro bae00f3734 A little more visual typesetting coded 
Originally committed to SVN as r751.
2007-01-09 06:25:25 +00:00

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// Copyright (c) 2005-2007, Rodrigo Braz Monteiro
// 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
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
#pragma once
//////////////
// Headers
#include <wx/wxprec.h>
#include "video_display_visual.h"
#include "video_display.h"
#include "video_provider.h"
#include "vfr.h"
#include "ass_file.h"
#include "ass_time.h"
#include "ass_dialogue.h"
#include "ass_override.h"
#include "ass_style.h"
#include "subs_grid.h"
#include "options.h"
#include "subs_edit_box.h"
#include "export_visible_lines.h"
#if USE_FEXTRACKER == 1
#include "../FexTrackerSource/FexTracker.h"
#include "../FexTrackerSource/FexTrackingFeature.h"
#include "../FexTrackerSource/FexMovement.h"
#endif
///////////////
// Constructor
VideoDisplayVisual::VideoDisplayVisual(VideoDisplay *par) {
parent = par;
backbuffer = NULL;
curSelection = NULL;
holding = false;
mode = -1;
SetMode(0);
colour[0] = wxColour(27,60,114);
colour[1] = wxColour(175,219,254);
colour[2] = wxColour(255,255,255);
colour[3] = wxColour(187,0,0);
}
//////////////
// Destructor
VideoDisplayVisual::~VideoDisplayVisual() {
delete backbuffer;
}
////////////
// Set mode
void VideoDisplayVisual::SetMode(int _mode) {
// Set mode
mode = _mode;
// Hide cursor
if (mode == 0) {
// 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__
parent->SetCursor(cursor);
}
// Show cursor
else {
parent->SetCursor(wxNullCursor);
}
}
////////////////
// Draw overlay
void VideoDisplayVisual::DrawOverlay() {
// Variables
int x = mouse_x;
int y = mouse_y;
int w = parent->w;
int h = parent->h;
int frame_n = parent->frame_n;
int sw,sh;
parent->GetScriptSize(sw,sh);
// Create backbuffer if needed
bool needCreate = false;
if (!backbuffer) needCreate = true;
else if (backbuffer->GetWidth() != w || backbuffer->GetHeight() != h) {
needCreate = true;
delete backbuffer;
}
if (needCreate) backbuffer = new wxBitmap(w,h);
// Prepare drawing
wxMemoryDC dc;
dc.SelectObject(*backbuffer);
// Draw frame
dc.DrawBitmap(parent->GetFrame(frame_n),0,0);
// Draw the control points for FexTracker
DrawTrackingOverlay(dc);
// Draw pivot points of visible lines
if (mode != 0) {
int numRows = parent->grid->GetRows();
int startMs = VFR_Output.GetTimeAtFrame(frame_n,true);
int endMs = VFR_Output.GetTimeAtFrame(frame_n,false);
AssDialogue *diag;
// For each line
for (int i=0;i<numRows;i++) {
diag = parent->grid->GetDialogue(i);
if (diag) {
// Draw?
bool draw = false;
bool high = false;
bool isCur = diag == curSelection;
int dx = -1;
int dy = -1;
int orgx = -1;
int orgy = -1;
float rx = 0.0f;
float ry = 0.0f;
float rz = 0.0f;
int deltax = 0;
int deltay = 0;
// Line visible?
if (isCur || (diag->Start.GetMS() <= startMs && diag->End.GetMS() >= endMs)) {
// Get position
if (isCur && mode == 1) {
dx = cur_x;
dy = cur_y;
high = true;
}
else GetLinePosition(diag,dx,dy,orgx,orgy);
// Mouse over?
if (mode == 1 && (x >= dx-8 && x <= dx+8 && y >= dy-8 && y <= dy+8)) {
high = true;
}
// Highlight
int brushCol = 1;
if (high) brushCol = 2;
dc.SetBrush(wxBrush(colour[brushCol]));
dc.SetPen(wxPen(colour[0],1));
// Set drawing coordinates
dx = dx * w / sw;
dy = dy * h / sh;
// Drag
if (mode == 1) {
dc.DrawRectangle(dx-8,dy-8,17,17);
dc.DrawLine(dx,dy-16,dx,dy+16);
dc.DrawLine(dx-16,dy,dx+16,dy);
}
// Rotate Z
if (mode == 2) {
// Calculate radius
int radius = (int) sqrt(double((dx-orgx)*(dx-orgx)+(dy-orgy)*(dy-orgy)));
if (radius < 50) radius = 50;
// Get deltas
GetLineRotation(diag,rx,ry,rz);
deltax = int(cos(rz*3.1415926536/180.0)*radius);
deltay = int(-sin(rz*3.1415926536/180.0)*radius);
int odx = dx;
int ody = dy;
dx = orgx;
dy = orgy;
// Draw pivot
dc.DrawCircle(dx,dy,7);
dc.DrawLine(dx,dy-16,dx,dy+16);
dc.DrawLine(dx-16,dy,dx+16,dy);
// Draw the circle
dc.SetBrush(*wxTRANSPARENT_BRUSH);
dc.DrawCircle(dx,dy,radius+2);
dc.DrawCircle(dx,dy,radius-2);
dc.SetBrush(wxBrush(colour[brushCol]));
// Draw the baseline
dc.SetPen(wxPen(colour[3],2));
dc.DrawLine(dx+deltax,dy+deltay,dx-deltax,dy-deltay);
// Draw the connection line
if (orgx != odx && orgy != ody) {
double angle = atan2(double(dy-ody),double(odx-dx)) + rz*3.1415926536/180.0;
int fx = dx+int(cos(angle)*radius);
int fy = dy-int(sin(angle)*radius);
dc.DrawLine(dx,dy,fx,fy);
//dc.SetPen(wxPen(colour[0],1));
int mdx = cos(rz*3.1415926536/180.0)*10;
int mdy = -sin(rz*3.1415926536/180.0)*10;
dc.DrawLine(fx-mdx,fy-mdy,fx+mdx,fy+mdy);
}
// Draw the rotation line
dc.SetPen(wxPen(colour[0],1));
dc.DrawCircle(dx+deltax,dy+deltay,4);
}
}
}
}
}
// Current position info
if (mode == 0 && x >= 0 && x < w && y >= 0 && y < h) {
// Draw cross
dc.SetPen(wxPen(colour[2],1));
dc.SetLogicalFunction(wxINVERT);
dc.DrawLine(0,y,w-1,y);
dc.DrawLine(x,0,x,h-1);
// Setup text
wxFont font(10,wxFONTFAMILY_DEFAULT,wxFONTSTYLE_NORMAL,wxFONTWEIGHT_BOLD,false,_T("Verdana"));
dc.SetFont(font);
int tw,th;
parent->GetTextExtent(mouseText,&tw,&th,NULL,NULL,&font);
// Inversion
bool left = x > w/2;
bool bottom = y < h/2;
// Text draw coords
int dx = x,dy = y;
if (left) dx -= tw + 4;
else dx += 4;
if (bottom) dy += 3;
else dy -= th + 3;
// Draw text
dc.SetTextForeground(wxColour(64,64,64));
dc.DrawText(mouseText,dx+1,dy-1);
dc.DrawText(mouseText,dx+1,dy+1);
dc.DrawText(mouseText,dx-1,dy-1);
dc.DrawText(mouseText,dx-1,dy+1);
dc.SetTextForeground(colour[2]);
dc.DrawText(mouseText,dx,dy);
}
// Blit to screen
wxClientDC dcScreen(parent);
//dcScreen.DrawBitmap(backbuffer,0,0);
dcScreen.Blit(0,0,w,h,&dc,0,0);
}
////////////////////////
// Get position of line
void VideoDisplayVisual::GetLinePosition(AssDialogue *diag,int &x, int &y) {
int orgx=0,orgy=0;
GetLinePosition(diag,x,y,orgx,orgy);
}
void VideoDisplayVisual::GetLinePosition(AssDialogue *diag,int &x, int &y, int &orgx, int &orgy) {
// No dialogue
if (!diag) {
x = -1;
y = -1;
return;
}
// Default values
int margin[4];
for (int i=0;i<4;i++) margin[i] = diag->Margin[i];
int align = 2;
// Get style
AssStyle *style = parent->grid->ass->GetStyle(diag->Style);
if (style) {
align = style->alignment;
for (int i=0;i<4;i++) {
if (margin[i] == 0) margin[i] = style->Margin[i];
}
}
// Script size
int sw,sh;
parent->GetScriptSize(sw,sh);
// Process margins
margin[3] = margin[2];
margin[1] = sw - margin[1];
margin[3] = sh - margin[3];
// Position
bool posSet = false;
bool orgSet = false;
int posx = -1;
int posy = -1;
// Overrides processing
diag->ParseASSTags();
AssDialogueBlockOverride *override;
AssOverrideTag *tag;
size_t blockn = diag->Blocks.size();
for (size_t i=0;i<blockn;i++) {
override = AssDialogueBlock::GetAsOverride(diag->Blocks.at(i));
if (override) {
for (size_t j=0;j<override->Tags.size();j++) {
tag = override->Tags.at(j);
// Position
if ((tag->Name == _T("\\pos") || tag->Name == _("\\move")) && tag->Params.size() >= 2) {
if (!posSet) {
posx = tag->Params[0]->AsInt();
posy = tag->Params[1]->AsInt();
posSet = true;
}
}
// Alignment
else if ((tag->Name == _T("\\an") || tag->Name == _T("\\a")) && tag->Params.size() >= 1) {
align = tag->Params[0]->AsInt();
if (tag->Name == _T("\\a")) {
switch(align) {
case 1: align = 1; break;
case 2: align = 2; break;
case 3: align = 3; break;
case 5: align = 7; break;
case 6: align = 8; break;
case 7: align = 9; break;
case 9: align = 4; break;
case 10: align = 5; break;
case 11: align = 6; break;
default: align = 2; break;
}
}
}
// Origin
else if (!orgSet && tag->Name == _T("\\org") && tag->Params.size() >= 2) {
orgx = tag->Params[0]->AsInt();
orgy = tag->Params[1]->AsInt();
orgSet = true;
}
}
}
}
diag->ClearBlocks();
// Got position
if (posSet) {
x = posx;
y = posy;
if (!orgSet) {
orgx = x;
orgy = y;
}
return;
}
// Alignment type
int hor = (align - 1) % 3;
int vert = (align - 1) / 3;
// Calculate positions
if (hor == 0) x = margin[0];
else if (hor == 1) x = (margin[0] + margin[1])/2;
else if (hor == 2) x = margin[1];
if (vert == 0) y = margin[3];
else if (vert == 1) y = (margin[2] + margin[3])/2;
else if (vert == 2) y = margin[2];
// No origin?
if (!orgSet) {
orgx = x;
orgy = y;
}
}
///////////////////////
// Get line's rotation
void VideoDisplayVisual::GetLineRotation(AssDialogue *diag,float &rx,float &ry,float &rz) {
// Default values
rx = ry = rz = 0.0f;
// Prepare overrides
diag->ParseASSTags();
AssDialogueBlockOverride *override;
AssOverrideTag *tag;
size_t blockn = diag->Blocks.size();
if (blockn == 0) {
diag->ClearBlocks();
return;
}
// Process override
override = AssDialogueBlock::GetAsOverride(diag->Blocks.at(0));
if (override) {
for (size_t j=0;j<override->Tags.size();j++) {
tag = override->Tags.at(j);
if (tag->Name == _T("\\frx") && tag->Params.size() == 1) {
rx = tag->Params[0]->AsFloat();
}
if (tag->Name == _T("\\fry") && tag->Params.size() == 1) {
ry = tag->Params[0]->AsFloat();
}
if ((tag->Name == _T("\\frz") || tag->Name == _T("\fr")) && tag->Params.size() == 1) {
rz = tag->Params[0]->AsFloat();
}
}
}
diag->ClearBlocks();
}
//////////////////
// Draw Tracking Overlay
void VideoDisplayVisual::DrawTrackingOverlay( wxDC &dc )
{
#if USE_FEXTRACKER == 1
int frame_n = parent->frame_n;
VideoProvider *provider = parent->provider;
if( parent->IsPlaying ) return;
// Get line
AssDialogue *curline = parent->grid->GetDialogue(parent->grid->editBox->linen);
if( !curline ) return;
int StartFrame = VFR_Output.GetFrameAtTime(curline->Start.GetMS(),true);
int EndFrame = VFR_Output.GetFrameAtTime(curline->End.GetMS(),false);
if( frame_n<StartFrame || frame_n>EndFrame ) return;
int localframe = frame_n - StartFrame;
if( curline->Tracker )
{
if( curline->Tracker->GetFrame() <= localframe ) return;
dc.SetLogicalFunction(wxCOPY);
for( int i=0;i<curline->Tracker->GetCount();i++ )
{
FexTrackingFeature* f = (*curline->Tracker)[i];
if( f->StartTime > localframe ) continue;
int llf = localframe - f->StartTime;
if( f->Pos.size() <= llf ) continue;
vec2 pt = f->Pos[llf];
pt.x *= provider->GetZoom();
pt.y *= provider->GetZoom();
pt.x = int(pt.x);
pt.y = int(pt.y);
dc.SetPen(wxPen(wxColour(255*(1-f->Influence),255*f->Influence,0),1));
dc.DrawLine( pt.x-2, pt.y, pt.x, pt.y );
dc.DrawLine( pt.x, pt.y-2, pt.x, pt.y );
dc.DrawLine( pt.x+1, pt.y, pt.x+3, pt.y );
dc.DrawLine( pt.x, pt.y+1, pt.x, pt.y+3 );
}
}
if( curline->Movement )
{
if( curline->Movement->Frames.size() <= localframe ) return;
dc.SetPen(wxPen(colour[0],2));
FexMovementFrame f = curline->Movement->Frames.lVal[localframe];
f.Pos.x *= provider->GetZoom();
f.Pos.y *= provider->GetZoom();
f.Scale.x *= 30* provider->GetZoom();
f.Scale.y *= 30* provider->GetZoom();
FexMovementFrame f3 = f;
dc.SetPen(wxPen(wxColour(0,0,255),1));
int nBack = 8;
while( --localframe>0 && nBack-- >0 )
{
FexMovementFrame f2 = curline->Movement->Frames.lVal[localframe];
f2.Pos.x *= provider->GetZoom();
f2.Pos.y *= provider->GetZoom();
dc.DrawLine( f2.Pos.x, f2.Pos.y, f3.Pos.x, f3.Pos.y );
f3 = f2;
}
dc.SetPen(wxPen(colour[0],2));
dc.DrawLine( f.Pos.x-f.Scale.x, f.Pos.y, f.Pos.x+f.Scale.x+1, f.Pos.y );
dc.DrawLine( f.Pos.x, f.Pos.y-f.Scale.y, f.Pos.x, f.Pos.y+f.Scale.y+1 );
f3 = f;
dc.SetPen(wxPen(wxColour(0,255,0),1));
int nFront = 8;
localframe = frame_n - StartFrame;
while( ++localframe<curline->Movement->Frames.size() && nFront-- >0 )
{
FexMovementFrame f2 = curline->Movement->Frames.lVal[localframe];
f2.Pos.x *= provider->GetZoom();
f2.Pos.y *= provider->GetZoom();
dc.DrawLine( f2.Pos.x, f2.Pos.y, f3.Pos.x, f3.Pos.y );
f3 = f2;
}
}
#endif
}
///////////////
// Mouse event
void VideoDisplayVisual::OnMouseEvent (wxMouseEvent &event) {
// Coords
int x = event.GetX();
int y = event.GetY();
int w = parent->w;
int h = parent->h;
int sw,sh;
parent->GetScriptSize(sw,sh);
int frame_n = parent->frame_n;
VideoProvider *provider = parent->provider;
SubtitlesGrid *grid = parent->grid;
bool hasOverlay = false;
bool realTime = Options.AsBool(_T("Video Visual Realtime"));
// FexTracker
#if USE_FEXTRACKER == 1
if( event.ButtonDown(wxMOUSE_BTN_LEFT) ) {
parent->MouseDownX = x;
parent->MouseDownY = y;
parent->bTrackerEditing = 1;
}
if( event.ButtonUp(wxMOUSE_BTN_LEFT) ) parent->bTrackerEditing = 0;
// Do tracker influence if needed
if( parent->bTrackerEditing ) {
AssDialogue *curline = parent->grid->GetDialogue(parent->grid->editBox->linen);
int StartFrame, EndFrame, localframe;
if( curline && (StartFrame = VFR_Output.GetFrameAtTime(curline->Start.GetMS(),true)) <= frame_n && (EndFrame = VFR_Output.GetFrameAtTime(curline->End.GetMS(),false)) >= frame_n ) {
localframe = frame_n - StartFrame;
if( parent->TrackerEdit!=0 && curline->Tracker && localframe < curline->Tracker->GetFrame() ) curline->Tracker->InfluenceFeatures( localframe, float(x)/provider->GetZoom(), float(y)/provider->GetZoom(), parent->TrackerEdit );
if( parent->MovementEdit!=0 && curline->Movement && localframe < curline->Movement->Frames.size() ) {// no /provider->GetZoom() to improve precision
if( parent->MovementEdit==1 ) {
for( int i=0;i<curline->Movement->Frames.size();i++ ) {
curline->Movement->Frames[i].Pos.x += float(x-parent->MouseDownX);
curline->Movement->Frames[i].Pos.y += float(y-parent->MouseDownY);
}
}
else if( parent->MovementEdit==2 ) {
curline->Movement->Frames[localframe].Pos.x += float(x-parent->MouseDownX);
curline->Movement->Frames[localframe].Pos.y += float(y-parent->MouseDownY);
}
else if( parent->MovementEdit==3 ) {
for( int i=0;i<=localframe;i++ ) {
curline->Movement->Frames[i].Pos.x += float(x-parent->MouseDownX);
curline->Movement->Frames[i].Pos.y += float(y-parent->MouseDownY);
}
}
else if( parent->MovementEdit==4 ) {
for( int i=localframe;i<curline->Movement->Frames.size();i++ ) {
curline->Movement->Frames[i].Pos.x += float(x-parent->MouseDownX);
curline->Movement->Frames[i].Pos.y += float(y-parent->MouseDownY);
}
}
}
parent->MouseDownX = x;
parent->MouseDownY = y;
}
}
#endif
// Text of current coords
int vx = (sw * x + w/2) / w;
int vy = (sh * y + h/2) / h;
if (!event.ShiftDown()) mouseText = wxString::Format(_T("%i,%i"),vx,vy);
else mouseText = wxString::Format(_T("%i,%i"),vx - sw,vy - sh);
// Start dragging
if (mode != 0 && event.LeftIsDown() && !holding) {
// For each line
int numRows = parent->grid->GetRows();
int startMs = VFR_Output.GetTimeAtFrame(frame_n,true);
int endMs = VFR_Output.GetTimeAtFrame(frame_n,false);
AssDialogue *diag;
AssDialogue *gotDiag = NULL;
for (int i=0;i<numRows;i++) {
diag = parent->grid->GetDialogue(i);
if (diag) {
// Line visible?
if (diag->Start.GetMS() <= startMs && diag->End.GetMS() >= endMs) {
// Get position
int lineX,lineY;
GetLinePosition(diag,lineX,lineY);
lineX = lineX * w / sw;
lineY = lineY * h / sh;
// Mouse over?
if (x >= lineX-8 && x <= lineX+8 && y >= lineY-8 && y <= lineY+8) {
parent->grid->editBox->SetToLine(i,true);
gotDiag = diag;
orig_x = lineX;
orig_y = lineY;
break;
}
}
}
}
// Got a line?
if (gotDiag) {
// Set dialogue
curSelection = gotDiag;
// Set coordinates
if (mode == 1) {
start_x = x;
start_y = y;
}
// Hold it
holding = true;
hold = mode;
parent->CaptureMouse();
hasOverlay = true;
}
}
// Drag
if (hold == 1) {
cur_x = (x - start_x + orig_x) * sw / w;
cur_y = (y - start_y + orig_y) * sh / h;
if (realTime) {
AssLimitToVisibleFilter::SetFrame(frame_n);
grid->editBox->SetOverride(_T("\\pos"),wxString::Format(_T("(%i,%i)"),cur_x,cur_y),0);
grid->editBox->CommitText(true);
grid->CommitChanges(false,true);
}
}
// End dragging
if (holding && !event.LeftIsDown()) {
// Disable limiting
if (realTime) AssLimitToVisibleFilter::SetFrame(-1);
// Finished dragging subtitles
if (hold == 1) {
grid->editBox->SetOverride(_T("\\pos"),wxString::Format(_T("(%i,%i)"),cur_x,cur_y),0);
grid->editBox->CommitText();
grid->ass->FlagAsModified();
grid->CommitChanges(false,true);
curSelection = NULL;
}
// Set flags
hold = 0;
holding = false;
hasOverlay = true;
parent->ReleaseMouse();
parent->SetFocus();
}
// Double click
if (mode == 0 && event.LeftDClick()) {
grid->editBox->SetOverride(_T("\\pos"),wxString::Format(_T("(%i,%i)"),vx,vy),0);
grid->editBox->CommitText();
grid->ass->FlagAsModified();
grid->CommitChanges(false,true);
parent->SetFocus();
}
// Hover
if (x != mouse_x || y != mouse_y) {
// Set coords
mouse_x = x;
mouse_y = y;
hasOverlay = true;
}
// Has something to draw
if (hasOverlay) {
DrawOverlay();
}
}
/////////////
// Key event
void VideoDisplayVisual::OnKeyEvent(wxKeyEvent &event) {
if (event.GetKeyCode() == 'A') SetMode(0);
if (event.GetKeyCode() == 'S') SetMode(1);
if (event.GetKeyCode() == 'D') SetMode(2);
}
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