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Significantly speed up duplicating multiple lines

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SubtitlesGrid::DuplicateLines iterated over the entire file multiple
times for each line duplicated, making duplicating large numbers of
lines extremely slow.

Originally committed to SVN as r6366.
This commit is contained in:
Thomas Goyne 2012-01-26 20:08:54 +00:00
parent 15a4eca7ce
commit 99a7eece9c
1 changed files with 22 additions and 21 deletions
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43
aegisub/src/subs_grid.cpp
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@ -371,34 +371,35 @@ void SubtitlesGrid::AdjoinLines(int n1,int n2,bool setStart) {
context->ass->Commit(_("adjoin"), AssFile::COMMIT_DIAG_TIME);
}
void SubtitlesGrid::DuplicateLines(int n1,int n2,bool nextFrame) {
AssDialogue *cur;
bool update = false;
int step=0;
for (int i=n1;i<=n2;i++) {
// Create
if (i == n2) update = true;
cur = new AssDialogue(GetDialogue(i)->GetEntryData());
void SubtitlesGrid::DuplicateLines(int n1, int n2, bool nextFrame) {
std::list<AssEntry*>::iterator insert_pos = find(context->ass->Line.begin(), context->ass->Line.end(), GetDialogue(n2));
if (insert_pos != context->ass->Line.end())
++insert_pos;
Selection newsel;
AssDialogue *first = 0;
for (int i = n1; i <= n2; ++i) {
AssDialogue *diag = new AssDialogue(*GetDialogue(i));
if (!first)
first = diag;
context->ass->Line.insert(insert_pos, diag);
newsel.insert(diag);
// Shift to next frame
if (nextFrame) {
int posFrame = context->videoController->FrameAtTime(cur->End,agi::vfr::END) + 1;
cur->Start = context->videoController->TimeAtFrame(posFrame,agi::vfr::START);
cur->End = context->videoController->TimeAtFrame(posFrame,agi::vfr::END);
int posFrame = context->videoController->FrameAtTime(diag->End, agi::vfr::END) + 1;
diag->Start = context->videoController->TimeAtFrame(posFrame, agi::vfr::START);
diag->End = context->videoController->TimeAtFrame(posFrame, agi::vfr::END);
}
}
// Insert
InsertLine(cur,n2+step,true,update);
step++;
}
context->ass->Commit(_("duplicate lines"), AssFile::COMMIT_DIAG_ADDREM);
// Select new lines
Selection newsel;
for (int i=n1;i<=n2;i++) {
newsel.insert(GetDialogue(i+step));
}
SetSelectedSet(newsel);
SetActiveLine(GetDialogue(n1+step));
SetActiveLine(first);
}
/// @brief Retrieve a list of selected lines in the actual ASS file (ie. not as displayed in the grid but as represented in the file)