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Aegisub/aegisub/ass_file.cpp

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// Copyright (c) 2005, 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
//
////////////
// Includes
#include <list>
#include <fstream>
#include <wx/filename.h>
#include "ass_file.h"
#include "ass_dialogue.h"
#include "ass_style.h"
#include "ass_attachment.h"
#include "ass_override.h"
#include "ass_exporter.h"
#include "vfr.h"
#include "options.h"
#include "text_file_reader.h"
#include "text_file_writer.h"
#include "version.h"
#include "subtitle_format.h"
////////////////////// AssFile //////////////////////
///////////////////////
// AssFile constructor
AssFile::AssFile () {
AssOverrideTagProto::LoadProtos();
Clear();
}
//////////////////////
// AssFile destructor
AssFile::~AssFile() {
Clear();
}
/////////////////////
// Load generic subs
void AssFile::Load (const wxString _filename,const wxString charset,bool addToRecent) {
bool ok = true;
try {
// Try to open file
FILE *file;
#ifdef WIN32
file = _tfopen(_filename.c_str(), _T("r"));
#else
file = fopen(_filename.mb_str(*wxConvFileName), "r");
#endif
if (!file) {
throw _T("Unable to open file \"") + _filename + _T("\". Check if it exists and if you have permissions to read it.");
}
fclose(file);
// Find file encoding
wxString enc;
if (charset.IsEmpty()) enc = TextFileReader::GetEncoding(_filename);
else enc = charset;
TextFileReader::EnsureValid(enc);
// Generic preparation
Clear();
// Get proper format reader
SubtitleFormat *reader = SubtitleFormat::GetReader(_filename);
// Read file
if (reader) {
reader->SetTarget(this);
reader->ReadFile(_filename,enc);
}
// Couldn't find a type
else throw _T("Unknown file type.");
}
// String error
catch (const wchar_t *except) {
wxMessageBox(except,_T("Error loading file"),wxICON_ERROR | wxOK);
ok = false;
}
catch (wxString except) {
wxMessageBox(except,_T("Error loading file"),wxICON_ERROR | wxOK);
ok = false;
}
// Other error
catch (...) {
wxMessageBox(_T("Unknown error"),_T("Error loading file"),wxICON_ERROR | wxOK);
ok = false;
}
// Verify loading
if (ok) filename = _filename;
else LoadDefault();
// Set general data
loaded = true;
// Add comments and set vars
AddComment(_T("Script generated by Aegisub ") + GetAegisubLongVersionString());
AddComment(_T("http://www.aegisub.net"));
SetScriptInfo(_T("ScriptType"),_T("v4.00+"));
// Add to recent
if (addToRecent) AddToRecent(_filename);
}
////////////////////////////
// Save a file to Hard Disk
void AssFile::Save(wxString _filename,bool setfilename,bool addToRecent,const wxString encoding) {
// Finds last dot
int i = 0;
for (i=(int)_filename.size();--i>=0;) {
if (_filename[i] == '.') break;
}
wxString extension = _filename.substr(i+1);
extension.Lower();
// Get writer
SubtitleFormat *writer = SubtitleFormat::GetWriter(_filename);
// Write file
if (writer) {
writer->SetTarget(this);
writer->WriteFile(_filename,encoding);
}
// Couldn't find a type
else throw _T("Unknown file type.");
// Add to recent
if (addToRecent) AddToRecent(_filename);
// Done
if (setfilename) {
Modified = false;
filename = _filename;
}
}
////////////////////////////////
// Saves a file to a ram vector
void AssFile::SaveMemory(std::vector<char> &dst,const wxString encoding) {
// Set encoding
wxString enc = encoding;
if (enc.IsEmpty()) enc = _T("UTF-8");
if (enc != _T("UTF-8")) throw _T("Memory writer only supports UTF-8 for now.");
// Prepare vector
dst.clear();
dst.reserve(0x4000);
// Write file
entryIter cur;
unsigned int lineSize = 0;
unsigned int targetSize = 0;
unsigned int pos = 0;
wxCharBuffer buffer;
for (cur=Line.begin();cur!=Line.end();cur++) {
// Convert
wxString temp = (*cur)->GetEntryData() + _T("\r\n");
buffer = temp.mb_str(wxConvUTF8);
lineSize = strlen(buffer);
// Raise capacity if needed
targetSize = dst.size() + lineSize;
if (dst.capacity() < targetSize) {
unsigned int newSize = dst.capacity();
while (newSize < targetSize) newSize *= 2;
dst.reserve(newSize);
}
// Append line
pos = dst.size();
dst.resize(targetSize);
memcpy(&dst[pos],buffer,lineSize);
}
}
////////////////////////////////////////////
// Exports file with proper transformations
void AssFile::Export(wxString _filename) {
AssExporter exporter(this);
exporter.AddAutoFilters();
exporter.Export(_filename,_T("UTF-8"));
}
//////////////////
// Can save file?
bool AssFile::CanSave() {
// ASS format?
if (filename.Lower().Right(4) == _T(".ass")) return true;
// Check if it's a known extension
SubtitleFormat *writer = SubtitleFormat::GetWriter(filename);
if (!writer) return false;
// Scan through the lines
AssStyle defstyle;
AssStyle *curstyle;
AssDialogue *curdiag;
AssAttachment *attach;
for (entryIter cur=Line.begin();cur!=Line.end();cur++) {
// Check style, if anything non-default is found, return false
curstyle = AssEntry::GetAsStyle(*cur);
if (curstyle) {
if (curstyle->GetEntryData() != defstyle.GetEntryData()) return false;
}
// Check for attachments, if any is found, return false
attach = AssEntry::GetAsAttachment(*cur);
if (attach) return false;
// Check dialog
curdiag = AssEntry::GetAsDialogue(*cur);
if (curdiag) {
curdiag->ParseASSTags();
for (size_t i=0;i<curdiag->Blocks.size();i++) {
if (curdiag->Blocks[i]->type != BLOCK_PLAIN) return false;
}
curdiag->ClearBlocks();
}
}
// Success
return true;
}
////////////////////////////////////
// Returns script as a single string
//wxString AssFile::GetString() {
// using std::list;
// wxString ret;
// AssEntry *entry;
// ret += 0xfeff;
// for (list<AssEntry*>::iterator cur=Line.begin();cur!=Line.end();) {
// entry = *cur;
// ret += entry->GetEntryData();
// ret += L"\n";
// cur++;
// }
// return ret;
//}
///////////////////////
// Appends line to Ass
// -------------------
// I strongly advice you against touching this function unless you know what you're doing;
// even moving things out of order might break ASS parsing - AMZ.
//
int AssFile::AddLine (wxString data,wxString group,int lasttime,int &version,wxString *outGroup) {
// Group
AssEntry *entry = NULL;
wxString origGroup = group;
static wxString keepGroup;
if (!keepGroup.IsEmpty()) group = keepGroup;
if (outGroup) *outGroup = group;
wxString lowGroup = group.Lower();
// Attachment
if (lowGroup == _T("[fonts]") || lowGroup == _T("[graphics]")) {
// Check if it's valid data
size_t dataLen = data.Length();
bool validData = (dataLen > 0) && (dataLen <= 80);
for (size_t i=0;i<dataLen;i++) {
if (data[i] < 33 || data[i] >= 97) validData = false;
}
// Is the filename line?
bool isFilename = (data.Left(10) == _T("fontname: ") && lowGroup == _T("[fonts]")) || (data.Left(10) == _T("filename: ") && lowGroup == _T("[graphics]"));
// The attachment file is static, since it is built through several calls to this
// After it's done building, it's reset to NULL
static AssAttachment *attach = NULL;
// Attachment exists, and data is over
if (attach && (!validData || isFilename)) {
attach->Finish();
keepGroup.Clear();
group = origGroup;
lowGroup = group.Lower();
Line.push_back(attach);
attach = NULL;
}
// Create attachment if needed
if (isFilename) {
attach = new AssAttachment(data.Mid(10));
attach->StartMS = lasttime;
attach->group = group;
keepGroup = group;
return lasttime;
}
// Valid data?
if (validData) {
// Insert data
attach->AddData(data);
// Done building
if (data.Length() < 80) {
attach->Finish();
keepGroup.Clear();
group = origGroup;
lowGroup = group.Lower();
entry = attach;
attach = NULL;
}
// Not done
else {
return lasttime;
}
}
}
// Dialogue
if (lowGroup == _T("[events]")) {
if ((data.Left(9) == _T("Dialogue:") || data.Left(8) == _T("Comment:"))) {
AssDialogue *diag = new AssDialogue(data,version);
lasttime = diag->Start.GetMS();
//diag->ParseASSTags();
entry = diag;
entry->StartMS = lasttime;
entry->group = group;
}
if (data.Left(7) == _T("Format:")) {
entry = new AssEntry(_T("Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text"));
entry->StartMS = lasttime;
entry->group = group;
}
}
// Style
else if (lowGroup == _T("[v4+ styles]")) {
if (data.Left(6) == _T("Style:")) {
AssStyle *style = new AssStyle(data,version);
entry = style;
entry->StartMS = lasttime;
entry->group = group;
}
if (data.Left(7) == _T("Format:")) {
entry = new AssEntry(_T("Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding"));
entry->StartMS = lasttime;
entry->group = group;
}
}
// Script info
else if (lowGroup == _T("[script info]")) {
// Comment
if (data.Left(1) == _T(";")) {
// Skip stupid comments added by other programs
// Of course, we'll add our own in place later... ;)
return lasttime;
}
// Version
if (data.Left(11) == _T("ScriptType:")) {
wxString versionString = data.Mid(11);
versionString.Trim(true);
versionString.Trim(false);
versionString.MakeLower();
int trueVersion;
if (versionString == _T("v4.00")) trueVersion = 0;
else if (versionString == _T("v4.00+")) trueVersion = 1;
else if (versionString == _T("v4.00++")) trueVersion = 2;
else throw _T("Unknown file version");
if (trueVersion != version) {
if (!(trueVersion == 2 && version == 1)) wxLogMessage(_T("Warning: File has the wrong extension."));
version = trueVersion;
}
}
// Everything
entry = new AssEntry(data);
entry->StartMS = lasttime;
entry->group = group;
}
// Common entry
if (entry == NULL) {
entry = new AssEntry(data);
entry->StartMS = lasttime;
entry->group = group;
}
// Insert the line
Line.push_back(entry);
return lasttime;
}
//////////////////////////////
// Clears contents of assfile
void AssFile::Clear () {
for (std::list<AssEntry*>::iterator cur=Line.begin();cur != Line.end();cur++) {
if (*cur) delete *cur;
}
Line.clear();
loaded = false;
filename = _T("");
Modified = false;
}
//////////////////////
// Loads default subs
void AssFile::LoadDefault (bool defline) {
// Clear first
Clear();
// Write headers
AssStyle defstyle;
int version = 1;
AddLine(_T("[Script Info]"),_T("[Script Info]"),-1,version);
AddLine(_T("Title: Default Aegisub file"),_T("[Script Info]"),-1,version);
AddLine(_T("ScriptType: v4.00+"),_T("[Script Info]"),-1,version);
AddLine(_T("WrapStyle: 0"), _T("[Script Info]"),-1,version);
AddLine(_T("PlayResX: 640"),_T("[Script Info]"),-1,version);
AddLine(_T("PlayResY: 480"),_T("[Script Info]"),-1,version);
AddLine(_T("ScaledBorderAndShadow: yes"),_T("[Script Info]"),-1,version);
AddLine(_T(""),_T("[Script Info]"),-1,version);
AddLine(_T("[V4+ Styles]"),_T("[V4+ Styles]"),-1,version);
AddLine(_T("Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding"),_T("[V4+ Styles]"),-1,version);
AddLine(defstyle.GetEntryData(),_T("[V4+ Styles]"),-1,version);
AddLine(_T(""),_T("[V4+ Styles]"),-1,version);
AddLine(_T("[Events]"),_T("[Events]"),-1,version);
AddLine(_T("Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text"),_T("[Events]"),-1,version);
if (defline) {
AssDialogue def;
AddLine(def.GetEntryData(),_T("[Events]"),0,version);
}
loaded = true;
}
////////////////////
// Copy constructor
AssFile::AssFile (AssFile &from) {
using std::list;
// Copy standard variables
filename = from.filename;
loaded = from.loaded;
Modified = from.Modified;
// Copy lines
for (list<AssEntry*>::iterator cur=from.Line.begin();cur!=from.Line.end();cur++) {
Line.push_back((*cur)->Clone());
}
}
//////////////////////
// Insert a new style
void AssFile::InsertStyle (AssStyle *style) {
// Variables
using std::list;
AssEntry *curEntry;
list<AssEntry*>::iterator lastStyle = Line.end();
list<AssEntry*>::iterator cur;
int lasttime = -1;
wxString lastGroup;
// Look for insert position
for (cur=Line.begin();cur!=Line.end();cur++) {
curEntry = *cur;
if (curEntry->GetType() == ENTRY_STYLE || (lastGroup == _T("[V4+ Styles]") && curEntry->GetEntryData().substr(0,7) == _T("Format:"))) {
lastStyle = cur;
}
lasttime = curEntry->StartMS;
lastGroup = curEntry->group;
}
// No styles found, add them
if (lastStyle == Line.end()) {
// Add space
curEntry = new AssEntry(_T(""));
curEntry->group = lastGroup;
curEntry->StartMS = lasttime;
Line.push_back(curEntry);
// Add header
curEntry = new AssEntry(_T("[V4+ Styles]"));
curEntry->group = _T("[V4+ Styles]");
curEntry->StartMS = lasttime;
Line.push_back(curEntry);
// Add format line
curEntry = new AssEntry(_T("Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding"));
curEntry->group = _T("[V4+ Styles]");
curEntry->StartMS = lasttime;
Line.push_back(curEntry);
// Add style
style->group = _T("[V4+ Styles]");
style->StartMS = lasttime;
Line.push_back(style);
}
// Add to end of list
else {
lastStyle++;
style->group = (*lastStyle)->group;
style->StartMS = lasttime;
Line.insert(lastStyle,style);
}
}
////////////////////
// Insert attachment
void AssFile::InsertAttachment (AssAttachment *attach) {
// Search for insertion point
std::list<AssEntry*>::iterator insPoint=Line.end(),cur;
for (cur=Line.begin();cur!=Line.end();cur++) {
// Check if it's another attachment
AssAttachment *att = AssEntry::GetAsAttachment(*cur);
if (att) {
if (attach->group == att->group) insPoint = cur;
}
// See if it's the start of group
else if ((*cur)->GetType() == ENTRY_BASE) {
AssEntry *entry = (AssEntry*) (*cur);
if (entry->GetEntryData() == attach->group) insPoint = cur;
}
}
// Found point, insert there
if (insPoint != Line.end()) {
insPoint++;
attach->StartMS = (*insPoint)->StartMS;
Line.insert(insPoint,attach);
}
// Otherwise, create the [Fonts] group and insert
else {
int version=1;
int StartMS = Line.back()->StartMS;
AddLine(_T(""),Line.back()->group,StartMS,version);
AddLine(attach->group,attach->group,StartMS,version);
attach->StartMS = StartMS;
Line.push_back(attach);
AddLine(_T(""),attach->group,StartMS,version);
}
}
///////////////////////////////
// Insert attachment from file
void AssFile::InsertAttachment (wxString filename) {
// Get name
wxFileName fname(filename);
// Create
AssAttachment *newAttach = new AssAttachment(fname.GetFullName());
// Load
try {
newAttach->Import(filename);
}
catch (...) {
delete newAttach;
throw;
}
// Insert
if (filename.Right(4).Lower() == _T(".ttf")) newAttach->group = _T("[Fonts]");
else newAttach->group = _T("[Graphics]");
InsertAttachment(newAttach);
}
////////////////////
// Gets script info
wxString AssFile::GetScriptInfo(const wxString _key) {
// Prepare
wxString key = _key;;
key.Lower();
key += _T(":");
std::list<AssEntry*>::iterator cur;
bool GotIn = false;
// Look for it
for (cur=Line.begin();cur!=Line.end();cur++) {
if ((*cur)->group == _T("[Script Info]")) {
GotIn = true;
wxString curText = (*cur)->GetEntryData();
curText.Lower();
// Found
if (curText.Left(key.length()) == key) {
wxString result = curText.Mid(key.length());
result.Trim(false);
result.Trim(true);
return result;
}
}
else if (GotIn) break;
}
// Couldn't find
return _T("");
}
//////////////////////////
// Get script info as int
int AssFile::GetScriptInfoAsInt(const wxString key) {
long temp = 0;
try {
GetScriptInfo(key).ToLong(&temp);
}
catch (...) {
temp = 0;
}
return temp;
}
//////////////////////////
// Set a script info line
void AssFile::SetScriptInfo(const wxString _key,const wxString value) {
// Prepare
wxString key = _key;;
key.Lower();
key += _T(":");
std::list<AssEntry*>::iterator cur;
std::list<AssEntry*>::iterator prev;
bool GotIn = false;
// Look for it
for (cur=Line.begin();cur!=Line.end();cur++) {
if ((*cur)->group == _T("[Script Info]")) {
GotIn = true;
wxString curText = (*cur)->GetEntryData();
curText.Lower();
// Found
if (curText.Left(key.length()) == key) {
// Set value
if (value != _T("")) {
wxString result = _key;
result += _T(": ");
result += value;
(*cur)->SetEntryData(result);
}
// Remove key
else {
Line.erase(cur);
return;
}
return;
}
if (!(*cur)->GetEntryData().empty()) prev = cur;
}
// Add
else if (GotIn) {
if (value != _T("")) {
wxString result = _key;
result += _T(": ");
result += value;
AssEntry *entry = new AssEntry(result);
entry->group = (*prev)->group;
entry->StartMS = (*prev)->StartMS;
Line.insert(++prev,entry);
}
return;
}
}
}
//////////////////
// Get resolution
void AssFile::GetResolution(int &sw,int &sh) {
// Height
wxString temp = GetScriptInfo(_T("PlayResY"));
if (temp.IsEmpty() || !temp.IsNumber()) {
sh = 0;
}
else {
long templ;
temp.ToLong(&templ);
sh = templ;
}
// Width
temp = GetScriptInfo(_T("PlayResX"));
if (temp.IsEmpty() || !temp.IsNumber()) {
sw = 0;
}
else {
long templ;
temp.ToLong(&templ);
sw = templ;
}
// Gabest logic?
if (sw == 0 && sh == 0) {
sw = 384;
sh = 288;
} else if (sw == 0) {
if (sh == 1024)
sw = 1280;
else
sw = sh * 4 / 3;
} else if (sh == 0) {
if (sw == 1280)
sh = 1024;
else
sh = sw * 3 / 4;
}
}
///////////////////////////////////
// Adds a comment to [Script Info]
void AssFile::AddComment(const wxString _comment) {
wxString comment = _T("; ");
comment += _comment;
std::list<AssEntry*>::iterator cur;
int step = 0;
// Find insert position
for (cur=Line.begin();cur!=Line.end();cur++) {
// Start of group
if (step == 0 && (*cur)->group == _T("[Script Info]")) step = 1;
// First line after a ;
else if (step == 1 && (*cur)->GetEntryData().Left(1) != _T(";")) {
AssEntry *prev = *cur;
AssEntry *comm = new AssEntry(comment);
comm->group = prev->group;
comm->StartMS = prev->StartMS;
Line.insert(cur,comm);
break;
}
}
}
//////////////////////
// Get list of styles
wxArrayString AssFile::GetStyles() {
wxArrayString styles;
AssStyle *curstyle;
for (entryIter cur=Line.begin();cur!=Line.end();cur++) {
curstyle = AssEntry::GetAsStyle(*cur);
if (curstyle) {
styles.Add(curstyle->name);
}
}
if (styles.GetCount() == 0) styles.Add(_T("Default"));
return styles;
}
///////////////////////////////
// Gets style of specific name
AssStyle *AssFile::GetStyle(wxString name) {
AssStyle *curstyle;
for (entryIter cur=Line.begin();cur!=Line.end();cur++) {
curstyle = AssEntry::GetAsStyle(*cur);
if (curstyle) {
if (curstyle->name == name) return curstyle;
}
}
return NULL;
}
////////////////////////////////////
// Adds file name to list of recent
void AssFile::AddToRecent(wxString file) {
Options.AddToRecentList(file,_T("Recent sub"));
}
///////////////////////////////
// List of supported wildcards
wxString AssFile::GetWildcardList(int mode) {
//if (mode == 0) return _T("All Supported Types (*.ass,*.ssa,*.srt,*.txt,*.mkv,*.mks,*.mka)|*.ass;*.ssa;*.srt;*.txt;*.mkv;*.mks;*.mka|Advanced Substation Alpha (*.ass)|*.ass|Substation Alpha (*.ssa)|*.ssa|SubRip (*.srt)|*.srt|Plain-text (*.txt)|*.txt|Matroska (*.mkv,*.mks,*.mka)|*.mkv;*.mks;*.mka");
//else if (mode == 1) return _T("Advanced Substation Alpha (*.ass)|*.ass");
//else if (mode == 2) return _T("All Supported Types (*.ass,*.ssa,*.srt,*.txt,*.mkv,*.mks,*.mka)|*.ass;*.ssa;*.srt;*.txt|Advanced Substation Alpha (*.ass)|*.ass|Substation Alpha (*.ssa)|*.ssa|SubRip (*.srt)|*.srt|Plain-text (*.txt)|*.txt");
//else return _T("");
if (mode == 0) return SubtitleFormat::GetWildcards(0);
else if (mode == 1) return _T("Advanced Substation Alpha (*.ass)|*.ass");
else if (mode == 2) return SubtitleFormat::GetWildcards(1);
else return _T("");
}
////////////////////////////////////////////
// Compress/decompress for storage on stack
void AssFile::CompressForStack(bool compress) {
AssDialogue *diag;
for (entryIter cur=Line.begin();cur!=Line.end();cur++) {
diag = AssEntry::GetAsDialogue(*cur);
if (diag) {
if (compress) {
diag->SetEntryData(_T(""));
diag->ClearBlocks();
}
else diag->UpdateData();
}
}
}
//////////////////////////////
// Checks if file is modified
bool AssFile::IsModified() {
return Modified;
}
/////////////////////////
// Flag file as modified
void AssFile::FlagAsModified(wxString desc) {
// Clear redo
if (!RedoStack.empty()) {
//StackPush();
//UndoStack.push_back(new AssFile(*UndoStack.back()));
for (std::list<AssFile*>::iterator cur=RedoStack.begin();cur!=RedoStack.end();cur++) {
delete *cur;
}
RedoStack.clear();
}
Modified = true;
StackPush(desc);
}
//////////////
// Stack push
void AssFile::StackPush(wxString desc) {
// Places copy on stack
AssFile *curcopy = new AssFile(*top);
curcopy->CompressForStack(true);
curcopy->undodescription = desc;
UndoStack.push_back(curcopy);
StackModified = true;
// Cap depth
int n = 0;
for (std::list<AssFile*>::iterator cur=UndoStack.begin();cur!=UndoStack.end();cur++) {
n++;
}
int depth = Options.AsInt(_T("Undo levels"));
while (n > depth) {
delete UndoStack.front();
UndoStack.pop_front();
n--;
}
}
/////////////
// Stack pop
void AssFile::StackPop() {
bool addcopy = false;
wxString undodesc=_T("");
if (StackModified) {
undodesc=UndoStack.back()->undodescription;
UndoStack.pop_back();
StackModified = false;
addcopy = true;
}
if (!UndoStack.empty()) {
//delete top;
AssFile *undo = UndoStack.back();
top->CompressForStack(true);
top->undodescription = undodesc;
RedoStack.push_back(top);
top = undo;
top->CompressForStack(false);
UndoStack.pop_back();
Popping = true;
}
if (addcopy) {
StackPush(top->undodescription);
}
}
//////////////
// Stack redo
void AssFile::StackRedo() {
bool addcopy = false;
if (StackModified) {
UndoStack.pop_back();
StackModified = false;
addcopy = true;
}
if (!RedoStack.empty()) {
top->CompressForStack(true);
UndoStack.push_back(top);
top = RedoStack.back();
top->CompressForStack(false);
RedoStack.pop_back();
Popping = true;
//StackModified = false;
}
if (addcopy) {
StackPush(top->undodescription);
}
}
///////////////
// Stack clear
void AssFile::StackClear() {
// Clear undo
for (std::list<AssFile*>::iterator cur=UndoStack.begin();cur!=UndoStack.end();cur++) {
delete *cur;
}
UndoStack.clear();
// Clear redo
for (std::list<AssFile*>::iterator cur=RedoStack.begin();cur!=RedoStack.end();cur++) {
delete *cur;
}
RedoStack.clear();
Popping = false;
}
///////////////
// Stack reset
void AssFile::StackReset() {
StackClear();
delete top;
top = new AssFile;
StackModified = false;
}
//////////////////////////////////
// Returns if undo stack is empty
bool AssFile::IsUndoStackEmpty() {
if (StackModified) return (UndoStack.size() <= 1);
else return UndoStack.empty();
}
//////////////////////////////////
// Returns if redo stack is empty
bool AssFile::IsRedoStackEmpty() {
return RedoStack.empty();
}
wxString AssFile::GetUndoDescription() {
return (IsUndoStackEmpty())?_T(""):(UndoStack.back())->undodescription;
}
wxString AssFile::GetRedoDescription() {
return (IsRedoStackEmpty())?_T(""):(RedoStack.back())->undodescription;
}
//////////
// Global
AssFile *AssFile::top;
std::list<AssFile*> AssFile::UndoStack;
std::list<AssFile*> AssFile::RedoStack;
bool AssFile::Popping;
bool AssFile::StackModified;
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