Move "active line" responsibility to the grid. There are at the very least a bunch of redraw issues that need to be sorted out, probably much worse things are hiding.

Originally committed to SVN as r4604.

aegisub/src/audio_display.cpp

@@ -942,8 +942,8 @@ void AudioDisplay::SetFile(wxString file) {
 	assert(loaded == (provider != NULL));
 
 	// Set default selection
-	int n = grid->editBox->linen;
+	AssDialogue *dlg = grid->GetActiveLine();
-	SetDialogue(grid,grid->GetDialogue(n),n);
+	SetDialogue(grid,dlg,grid->GetDialogueIndex(dlg));
 }
 
 /// @brief Load from video 
@@ -2181,7 +2181,7 @@ void AudioDisplay::ChangeLine(int delta, bool block) {
 		// Set stuff
 		NeedCommit = false;
 		dialogue = NULL;
-		grid->editBox->SetToLine(next);
+		grid->SetActiveLine(grid->GetDialogue(next));
 		grid->SelectRow(next);
 		grid->MakeCellVisible(next,0,true);
 		if (!dialogue) UpdateImage(true);

aegisub/src/base_grid.cpp

@@ -80,6 +80,7 @@ BaseGrid::BaseGrid(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wx
 	holding = false;
 	byFrame = false;
 	lineHeight = 1; // non-zero to avoid div by 0
+	active_line = 0;
 
 	// Set scrollbar
 	scrollBar = new wxScrollBar(this,GRID_SCROLLBAR,wxDefaultPosition,wxDefaultSize,wxSB_VERTICAL);
@@ -492,7 +493,7 @@ void BaseGrid::DrawImage(wxDC &dc) {
 		// Check for collisions
 		bool collides = false;
 		if (curDiag) {
-			AssDialogue *sel = GetDialogue(editBox->linen);
+			AssDialogue *sel = GetActiveLine();
 			if (sel && sel != curDiag) {
 				if (curDiag->CollidesWith(sel)) collides = true;
 			}
@@ -636,11 +637,13 @@ void BaseGrid::DrawImage(wxDC &dc) {
 	}
 
 	// Draw currently active line border
+	if (GetActiveLine()) {
 		dc.SetPen(wxPen(lagi_wxColour(OPT_GET("Colour/Subtitle Grid/Active Border")->GetColour())));
 		dc.SetBrush(*wxTRANSPARENT_BRUSH);
-	dy = (editBox->linen+1-yPos) * lineHeight;
+		dy = (line_index_map[GetActiveLine()]+1-yPos) * lineHeight;
 		dc.DrawRectangle(0,dy,w,lineHeight+1);
 	}
+}
 
 
 
@@ -694,8 +697,8 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
 	if (holding && !click) {
 		row = MID(0,row,GetRows()-1);
 	}
-	bool validRow = row >= 0 && row < GetRows();
+	AssDialogue *dlg = GetDialogue(row);
-	if (!validRow) row = -1;
+	if (!dlg) row = 0;
 
 	// Get focus
 	if (event.ButtonDown()) {
@@ -706,7 +709,7 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
 
 	// Click type
 	bool startedHolding = false;
-	if (click && !holding && validRow) {
+	if (click && !holding && dlg!=0) {
 		holding = true;
 		startedHolding = true;
 		CaptureMouse();
@@ -736,7 +739,7 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
 	}
 
 	// Click
-	if ((click || holding || dclick) && validRow) {
+	if ((click || holding || dclick) && dlg!=0) {
 		// Disable extending
 		extendRow = -1;
 
@@ -749,8 +752,8 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
 
 		// Normal click
 		if ((click || dclick) && !shift && !ctrl && !alt) {
-			editBox->SetToLine(row);
+			SetActiveLine(dlg);
-			if (dclick) VideoContext::Get()->JumpToTime(GetDialogue(row)->Start.GetMS());
+			if (dclick) VideoContext::Get()->JumpToTime(dlg->Start.GetMS());
 			SelectRow(row,false);
 			parentFrame->UpdateToolbar();
 			lastRow = row;
@@ -759,7 +762,7 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
 
 		// Keep selection
 		if (click && !shift && !ctrl && alt) {
-			editBox->SetToLine(row);
+			SetActiveLine(dlg);
 			return;
 		}
 
@@ -770,17 +773,16 @@ void BaseGrid::OnMouseEvent(wxMouseEvent &event) {
 				int i1 = row;
 				int i2 = lastRow;
 				if (i1 > i2) {
-					int aux = i1;
+					std::swap(i1, i2);
-					i1 = i2;
-					i2 = aux;
 				}
 
 				// Toggle each
-				bool notFirst = false;
+				Selection newsel;
 				for (int i=i1;i<=i2;i++) {
-					SelectRow(i,notFirst,true);
+					newsel.insert(GetDialogue(i));
-					notFirst = true;
 				}
+				SetSelectedSet(newsel);
+
 				parentFrame->UpdateToolbar();
 			}
 			return;
@@ -1038,6 +1040,11 @@ void BaseGrid::UpdateMaps() {
 		}
 	}
 
+	if (line_index_map.find(active_line) == line_index_map.end()) {
+		// this isn't supposed to happen
+		SetActiveLine(0);
+	}
+
 	Refresh(false);
 }
 
@@ -1106,14 +1113,14 @@ void BaseGrid::OnKeyPress(wxKeyEvent &event) {
 		// Move selection
 		if (!ctrl && !shift && !alt) {
 			// Move to extent first
-			int curLine = editBox->linen;
+			int curLine = GetDialogueIndex(GetActiveLine());
 			if (extendRow != -1) {
 				curLine = extendRow;
 				extendRow = -1;
 			}
 
 			int next = MID(0,curLine+dir*step,GetRows()-1);
-			editBox->SetToLine(next);
+			SetActiveLine(GetDialogue(next));
 			SelectRow(next);
 			MakeCellVisible(next,0,false);
 			return;
@@ -1122,8 +1129,8 @@ void BaseGrid::OnKeyPress(wxKeyEvent &event) {
 		// Move active only
 		if (alt && !shift && !ctrl) {
 			extendRow = -1;
-			int next = MID(0,editBox->linen+dir*step,GetRows()-1);
+			int next = MID(0,GetDialogueIndex(GetActiveLine())+dir*step,GetRows()-1);
-			editBox->SetToLine(next);
+			SetActiveLine(GetDialogue(next));
 			Refresh(false);
 			MakeCellVisible(next,0,false);
 			return;
@@ -1132,23 +1139,22 @@ void BaseGrid::OnKeyPress(wxKeyEvent &event) {
 		// Shift-selection
 		if (shift && !ctrl && !alt) {
 			// Find end
-			if (extendRow == -1) extendRow = editBox->linen;
+			if (extendRow == -1) GetDialogueIndex(GetActiveLine());
 			extendRow = MID(0,extendRow+dir*step,GetRows()-1);
 
 			// Set range
-			int i1 = editBox->linen;
+			int i1 = GetDialogueIndex(GetActiveLine());
 			int i2 = extendRow;
 			if (i2 < i1) {
-				int aux = i1;
+				std::swap(i1, i2);
-				i1 = i2;
-				i2 = aux;
 			}
 
 			// Select range
-			ClearSelection();
+			Selection newsel;
 			for (int i=i1;i<=i2;i++) {
-				SelectRow(i,true);
+				newsel.insert(GetDialogue(i));
 			}
+			SetSelectedSet(newsel);
 
 			MakeCellVisible(extendRow,0,false);
 			return;
@@ -1203,14 +1209,45 @@ wxArrayInt BaseGrid::GetRangeArray(int n1,int n2) const {
 // SelectionController
 
 
-void BaseGrid::GetSelectedSet(Selection &os) const {
-	os.insert(selection.begin(), selection.end());
-}
-
-
 void BaseGrid::SetSelectedSet(const Selection &new_selection) {
 	Selection old_selection(selection);
 	selection = new_selection;
 	AnnounceSelectedSetChanged(new_selection, old_selection);
+	Refresh(false);
+}
+
+
+void BaseGrid::SetActiveLine(AssDialogue *new_line) {
+	if (new_line != active_line) {
+		assert(new_line == 0 || line_index_map.find(new_line) != line_index_map.end());
+		active_line = new_line;
+		AnnounceActiveLineChanged(active_line);
+		Refresh(false);
+	}
+}
+
+
+void BaseGrid::PrevLine() {
+	int cur_line_i = GetDialogueIndex(GetActiveLine());
+	AssDialogue *prev_line = GetDialogue(cur_line_i-1);
+	if (prev_line) {
+		SetActiveLine(prev_line);
+		Selection newsel;
+		newsel.insert(prev_line);
+		SetSelectedSet(newsel);
+		MakeCellVisible(cur_line_i-1, 0, false);
+	}
+}
+
+void BaseGrid::NextLine() {
+	int cur_line_i = GetDialogueIndex(GetActiveLine());
+	AssDialogue *next_line = GetDialogue(cur_line_i+1);
+	if (next_line) {
+		SetActiveLine(next_line);
+		Selection newsel;
+		newsel.insert(next_line);
+		SetSelectedSet(newsel);
+		MakeCellVisible(cur_line_i+1, 0, false);
+	}
 }
 

aegisub/src/base_grid.h

@@ -106,6 +106,7 @@ private:
 	void DrawImage(wxDC &dc);
 
 	Selection selection;
+	AssDialogue *active_line;
 	std::vector<AssDialogue*> index_line_map;
 	std::map<AssDialogue*,int> line_index_map;
 
@@ -130,12 +131,12 @@ protected:
 
 public:
 	// SelectionController implementation
-	virtual void SetActiveLine(AssDialogue *new_line) { }
+	virtual void SetActiveLine(AssDialogue *new_line);
-	virtual AssDialogue * GetActiveLine() const { return 0; }
+	virtual AssDialogue * GetActiveLine() const { return active_line; }
 	virtual void SetSelectedSet(const Selection &new_selection);
-	virtual void GetSelectedSet(Selection &selection) const;
+	virtual void GetSelectedSet(Selection &res) const { res.insert(selection.begin(), selection.end()); }
-	virtual void NextLine() { }
+	virtual void NextLine();
-	virtual void PrevLine() { }
+	virtual void PrevLine();
 
 public:
 

aegisub/src/dialog_search_replace.cpp

@@ -449,7 +449,7 @@ void SearchReplaceEngine::ReplaceNext(bool DoReplace) {
 		grid->SelectRow(curLine,false);
 		grid->MakeCellVisible(curLine,0);
 		if (field == 0) {
-			grid->editBox->SetToLine(curLine);
+			grid->SetActiveLine(grid->GetDialogue(curLine));
 			grid->editBox->TextEdit->SetSelectionU(pos,pos+replaceLen);
 		}
 		grid->EndBatch();

aegisub/src/dialog_selection.cpp

@@ -269,17 +269,19 @@ void DialogSelection::Process() {
 
 	// Select for modes 2 and 3
 	if (action == 2 || action == 3) {
+		SubtitleSelectionController::Selection newsel;
 		grid->ClearSelection();
 		int count = sels.Count();
-		if (count) {
-			grid->editBox->SetToLine(sels[0], true);
-		}
 		for (int i=0;i<count;i++) {
-			grid->SelectRow(sels[i],true);
+			newsel.insert(grid->GetDialogue(sels[i]));
+		}
+		grid->SetSelectedSet(newsel);
+		if (count) {
+			grid->SetActiveLine(grid->GetDialogue(sels[0]));
 		}
 	}
 	else if (firstSel > -1) {
-		grid->editBox->SetToLine(firstSel, true);
+		grid->SetActiveLine(grid->GetDialogue(firstSel));
 	}
 
 	// Message saying number selected

aegisub/src/dialog_spellchecker.cpp

@@ -273,7 +273,7 @@ void DialogSpellChecker::SetWord(wxString word) {
 	int line = lastLine % grid->GetRows();
 	grid->SelectRow(line,false);
 	grid->MakeCellVisible(line,0);
-	grid->editBox->SetToLine(line);
+	grid->SetActiveLine(grid->GetDialogue(line));
 	grid->editBox->TextEdit->SetSelectionU(wordStart,wordEnd);
 	grid->EndBatch();
 

aegisub/src/dialog_styling_assistant.cpp

@@ -210,7 +210,7 @@ void DialogStyling::JumpToLine(int n) {
 	// Update grid
 	grid->SelectRow(linen,false);
 	grid->MakeCellVisible(linen,0);
-	grid->editBox->SetToLine(linen);
+	grid->SetActiveLine(grid->GetDialogue(linen));
 
 	// Update display
 	if (PreviewCheck->IsChecked()) VideoContext::Get()->JumpToTime(line->Start.GetMS());

aegisub/src/dialog_translation.cpp

@@ -218,7 +218,7 @@ bool DialogTranslation::JumpToLine(int n,int block) {
 	grid->BeginBatch();
 	grid->SelectRow(curline);
 	grid->MakeCellVisible(curline,0);
-	grid->editBox->SetToLine(curline);
+	grid->SetActiveLine(current);
 	grid->EndBatch();
 
 	// Adds blocks

aegisub/src/frame_main_events.cpp

@@ -1459,21 +1459,12 @@ void FrameMain::OnFocusSeek(wxCommandEvent &) {
 
 /// @brief Previous line hotkey 
 void FrameMain::OnPrevLine(wxCommandEvent &) {
-	int next = EditBox->linen-1;
+	SubsGrid->PrevLine();
-	if (next < 0) return;
-	SubsGrid->SelectRow(next);
-	SubsGrid->MakeCellVisible(next,0);
-	EditBox->SetToLine(next);
 }
 
 /// @brief Next line hotkey 
 void FrameMain::OnNextLine(wxCommandEvent &) {
-	int nrows = SubsGrid->GetRows();
+	SubsGrid->NextLine();
-	int next = EditBox->linen+1;
-	if (next >= nrows) return;
-	SubsGrid->SelectRow(next);
-	SubsGrid->MakeCellVisible(next,0);
-	EditBox->SetToLine(next);
 }
 
 /// @brief Cycle through tag hiding modes 

aegisub/src/selection_controller.h

@@ -34,6 +34,10 @@
 /// @brief Interface declaration for the SubtitleSelectionController
 
 
+#ifndef AGI_SELECTION_CONTROLLER_H
+#define AGI_SELECTION_CONTROLLER_H
+
+
 #include <set>
 
 
@@ -103,6 +107,8 @@ public:
 	///
 	/// Calling this method should only cause a change notification to be sent if
 	/// the active line was actually changed.
+	///
+	/// This method must not affect the selected set.
 	virtual void SetActiveLine(ItemDataType *new_line) = 0;
 	
 	/// @brief Obtain the active line
@@ -211,3 +217,7 @@ public:
 	virtual void AddSelectionListener(SelectionListener *listener) { }
 	virtual void RemoveSelectionListener(SelectionListener *listener) { }
 };
+
+
+
+#endif // include guard

aegisub/src/subs_edit_box.cpp

@@ -81,7 +81,6 @@ SubsEditBox::SubsEditBox (wxWindow *parent,SubtitlesGrid *gridp) : wxPanel(paren
 	textEditReady = true;
 	controlState = true;
 	setupDone = false;
-	linen = -2;
 
 	// Top controls
 	wxArrayString styles;
@@ -210,6 +209,8 @@ SubsEditBox::SubsEditBox (wxWindow *parent,SubtitlesGrid *gridp) : wxPanel(paren
 	setupDone = true;
 	SetSplitLineMode();
 	Update();
+
+	grid->AddSelectionListener(this);
 }
 
 
@@ -217,6 +218,7 @@ SubsEditBox::SubsEditBox (wxWindow *parent,SubtitlesGrid *gridp) : wxPanel(paren
 /// @brief Destructor 
 ///
 SubsEditBox::~SubsEditBox() {
+	grid->RemoveSelectionListener(this);
 	ActorBox->PopEventHandler(true);
 	Effect->PopEventHandler(true);
 	TextEdit->PopEventHandler(true);
@@ -265,7 +267,7 @@ void SubsEditBox::SetSplitLineMode(wxSize newSize) {
 ///
 void SubsEditBox::Update (bool timeOnly,bool weak,bool video) {
 	if (enabled) {
-		AssDialogue *curdiag = grid->GetDialogue(linen);
+		AssDialogue *curdiag = grid->GetActiveLine();
 		if (curdiag) {
 			// Controls
 			SetControlsState(true);
@@ -295,7 +297,7 @@ void SubsEditBox::Update (bool timeOnly,bool weak,bool video) {
 			}
 
 			// Audio
-			if (!weak) audio->SetDialogue(grid,curdiag,linen);
+			if (!weak) audio->SetDialogue(grid,curdiag,grid->GetDialogueIndex(curdiag));
 
 			// Video
 			VideoContext::Get()->curLine = curdiag;
@@ -336,54 +338,12 @@ void SubsEditBox::UpdateGlobals () {
 	ActorBox->Thaw();
 
 	// Set subs update
-	linen = -2;
 	TextEdit->SetSelection(0,0);
-	SetToLine(grid->GetFirstSelRow());
+	grid->SetActiveLine(grid->GetDialogue(grid->GetFirstSelRow()));
 }
 
 
 
-/// @brief Jump to a line 
-/// @param n    
-/// @param weak 
-///
-void SubsEditBox::SetToLine(int n,bool weak) {
-	// Set to nothing
-	if (n == -1) {
-		enabled = false;
-	}
-
-	// Set line
-	else if (grid->GetDialogue(n)) {
-		enabled = true;
-		if (n != linen) {
-			linen = n;
-			StartTime->Update();
-			EndTime->Update();
-			Duration->Update();
-		}
-	}
-
-	// Update controls
-	Update();
-
-	// Set video
-	if (VideoContext::Get()->IsLoaded() && !weak) {
-		bool sync;
-		if (Search.hasFocus) sync = OPT_GET("Tool/Search Replace/Video Update")->GetBool();
-		else sync = OPT_GET("Video/Subtitle Sync")->GetBool();
-
-		if (sync) {
-			VideoContext::Get()->Stop();
-			AssDialogue *cur = grid->GetDialogue(n);
-			if (cur) VideoContext::Get()->JumpToTime(cur->Start.GetMS());
-		}
-	}
-
-	TextEdit->EmptyUndoBuffer();
-}
-
-
 ///////////////
 // Event table
 BEGIN_EVENT_TABLE(SubsEditBox, wxPanel)
@@ -761,16 +721,16 @@ void SubsEditBox::OnDurationChange(wxCommandEvent &event) {
 void SubsEditBox::CommitTimes(bool start,bool end,bool fromStart,bool commit) {
 	// Get selection
 	if (!start && !end) return;
-	wxArrayInt sel = grid->GetSelection();
+	Selection sel;
-	int n = sel.Count();
+	grid->GetSelectedSet(sel);
-	if (n == 0) return;
+	if (sel.size() == 0) return;
 	AssDialogue *cur;
 	Duration->SetTime(EndTime->time.GetMS() - StartTime->time.GetMS());
 
 	// Update lines
-	for (int i=0;i<n;i++) {
+	for (Selection::iterator it = sel.begin(); it != sel.end(); ++it) {
-		if (grid->IsInSelection(linen)) cur = grid->GetDialogue(sel[i]);
+		if (sel.find(grid->GetActiveLine()) != sel.end()) cur = *it;
-		else cur = grid->GetDialogue(linen);
+		else cur = grid->GetActiveLine();
 		if (cur) {
 			// Set times
 			if (start) cur->Start = StartTime->time;
@@ -781,7 +741,7 @@ void SubsEditBox::CommitTimes(bool start,bool end,bool fromStart,bool commit) {
 				if (fromStart) cur->End = cur->Start;
 				else cur->Start = cur->End;
 			}
-			if (!grid->IsInSelection(linen)) break;
+			if (sel.find(grid->GetActiveLine()) == sel.end()) break;
 		}
 	}
 
@@ -792,7 +752,8 @@ void SubsEditBox::CommitTimes(bool start,bool end,bool fromStart,bool commit) {
 		Duration->Update();
 		grid->ass->FlagAsModified(_("modify times"));
 		grid->CommitChanges();
-		audio->SetDialogue(grid,grid->GetDialogue(sel[0]),sel[0]);
+		int sel0 = grid->GetFirstSelRow();
+		audio->SetDialogue(grid,grid->GetDialogue(sel0),sel0);
 		VideoContext::Get()->UpdateDisplays(false);
 	}
 }
@@ -962,54 +923,57 @@ void SubsEditBox::DoKeyPress(wxKeyEvent &event) {
 ///
 void SubsEditBox::Commit(bool stay) {
 	// Record pre-commit data
-	wxString oldText = grid->GetDialogue(linen)->Text;
+	AssDialogue *old_line = grid->GetActiveLine();
-	int oldStart = grid->GetDialogue(linen)->Start.GetMS();
+	wxString oldText = old_line->Text;
-	int oldEnd = grid->GetDialogue(linen)->End.GetMS();
+	int oldStart = old_line->Start.GetMS();
+	int oldEnd = old_line->End.GetMS();
 	// Update line
 	CommitText();
 
 	// Change text/time if needed for all selected lines
-	bool updated = false;
+	bool textNeedsCommit = old_line->Text != oldText;
-	bool textNeedsCommit = grid->GetDialogue(linen)->Text != oldText;
+	bool timeNeedsCommit = old_line->Start.GetMS() != oldStart || old_line->End.GetMS() != oldEnd;
-	bool timeNeedsCommit = grid->GetDialogue(linen)->Start.GetMS() != oldStart || grid->GetDialogue(linen)->End.GetMS() != oldEnd;
+	Selection sel;
-	int nrows = grid->GetRows();
+	grid->GetSelectedSet(sel);
-	wxArrayInt sel = grid->GetSelection();
+	if (sel.find(old_line) != sel.end()) {
-	if (grid->IsInSelection(linen)) {
+		for (Selection::iterator it = sel.begin(); it != sel.end(); ++it) {
-		for (size_t i=0;i<sel.GetCount();i++) {
+			if (textNeedsCommit) {
-			if (textNeedsCommit) grid->GetDialogue(sel[i])->Text = TextEdit->GetText();
+				(*it)->Text = TextEdit->GetText();
+			}
 			if (timeNeedsCommit) {
-				grid->GetDialogue(sel[i])->Start.SetMS(StartTime->time.GetMS());
+				(*it)->Start.SetMS(StartTime->time.GetMS());
-				grid->GetDialogue(sel[i])->End.SetMS(EndTime->time.GetMS());
+				(*it)->End.SetMS(EndTime->time.GetMS());
 			}
 		}
 	}
 
 	// Update file
-	if (!updated && textNeedsCommit) {
+	if (textNeedsCommit) {
 		grid->ass->FlagAsModified(_("editing"));
 		grid->CommitChanges();
 	}
-	else if (!updated && (StartTime->HasBeenModified() || EndTime->HasBeenModified())) 
+	else if (StartTime->HasBeenModified() || EndTime->HasBeenModified()) {
 		CommitTimes(StartTime->HasBeenModified(),EndTime->HasBeenModified(),StartTime->HasBeenModified(),true);
+	}
 
 	// Get next line if ctrl was not held down
 	if (!stay) {
 		int next;
-		if (!grid->IsInSelection(linen)) next = linen+1;
+		if (sel.find(old_line) == sel.end())
-		else next = grid->GetLastSelRow()+1;
+			next = grid->GetDialogueIndex(old_line)+1;
+		else
+			next = grid->GetLastSelRow()+1;
 		AssDialogue *cur = grid->GetDialogue(next-1);
-		if (next >= nrows) {
+		if (next >= grid->GetRows()) {
 			AssDialogue *newline = new AssDialogue;
 			newline->Start = cur->End;
 			newline->End.SetMS(cur->End.GetMS()+OPT_GET("Timing/Default Duration")->GetInt());
 			newline->Style = cur->Style;
 			grid->InsertLine(newline,next-1,true,true);
-			updated = true;
 		}
 		grid->SelectRow(next);
 		grid->MakeCellVisible(next,0);
-		SetToLine(next);
+		grid->SetActiveLine(grid->GetDialogue(next));
-		if (next >= nrows) return;
 	}
 }
 
@@ -1019,7 +983,7 @@ void SubsEditBox::Commit(bool stay) {
 /// @param weak 
 ///
 void SubsEditBox::CommitText(bool weak) {
-	AssDialogue *cur = grid->GetDialogue(linen);
+	AssDialogue *cur = grid->GetActiveLine();
 
 	// Update line
 	if (cur) {
@@ -1027,7 +991,7 @@ void SubsEditBox::CommitText(bool weak) {
 		cur->Text = TextEdit->GetText();
 
 		// Update times
-		if (grid->IsInSelection(linen)) {
+		if (grid->IsInSelection(grid->GetDialogueIndex(cur))) {
 			cur->Start = StartTime->time;
 			cur->End = EndTime->time;
 			if (cur->Start > cur->End) {
@@ -1039,7 +1003,7 @@ void SubsEditBox::CommitText(bool weak) {
 		// Update audio
 		if (!weak) {
 			grid->Refresh(false);
-			audio->SetDialogue(grid,cur,linen);
+			audio->SetDialogue(grid,cur,grid->GetDialogueIndex(cur));
 		}
 	}
 }
@@ -1115,7 +1079,7 @@ void SubsEditBox::SetOverride (wxString tagname,wxString preValue,int forcePos,b
 	bool isGeneric = false;
 	bool isFlag = false;
 	bool state = false;
-	AssStyle *style = grid->ass->GetStyle(grid->GetDialogue(linen)->Style);
+	AssStyle *style = grid->ass->GetStyle(grid->GetActiveLine()->Style);
 	AssStyle defStyle;
 	if (style == NULL) style = &defStyle; 
 	if (tagname == _T("\\b")) {
@@ -1447,4 +1411,37 @@ void SubsEditBox::OnButtonCommit(wxCommandEvent &event) {
 
 
 
+void SubsEditBox::OnActiveLineChanged(AssDialogue *new_line) {
+	// Set to nothing
+	enabled = (new_line != 0);
+
+	// Set line
+	if (enabled) {
+		StartTime->Update();
+		EndTime->Update();
+		Duration->Update();
+	}
+
+	// Update controls
+	Update();
+
+	// Set video
+	if (VideoContext::Get()->IsLoaded()) {
+		bool sync;
+		if (Search.hasFocus) sync = OPT_GET("Tool/Search Replace/Video Update")->GetBool();
+		else sync = OPT_GET("Video/Subtitle Sync")->GetBool();
+
+		if (sync) {
+			VideoContext::Get()->Stop();
+			if (new_line) VideoContext::Get()->JumpToTime(new_line->Start.GetMS());
+		}
+	}
+
+	TextEdit->EmptyUndoBuffer();
+}
+
+
+
+void SubsEditBox::OnSelectedSetChanged(const Selection &lines_added, const Selection &lines_removed) {
+}
 

aegisub/src/subs_edit_box.h

@@ -50,11 +50,13 @@
 #include <wx/spinctrl.h>
 #endif
 
+#include "selection_controller.h"
 #include "subs_edit_ctrl.h"
 
 
 //////////////
 // Prototypes
+class AssDialogue;
 class SubtitlesGrid;
 class TimeEdit;
 class SubsEditBox;
@@ -69,7 +71,7 @@ class wxStyledTextCtrl;
 /// @brief DOCME
 ///
 /// DOCME
-class SubsEditBox : public wxPanel {
+class SubsEditBox : public wxPanel, protected SelectionListener<AssDialogue> {
 	friend class SubsTextEditHandler;
 	friend class SubsTextEditCtrl;
 	friend class AudioDisplay;
@@ -232,10 +234,12 @@ private:
 	void OnEffectChange(wxCommandEvent &event);
 	void OnSize(wxSizeEvent &event);
 
-public:
+protected:
+	// SubtitleSelectionListener implementation
+	virtual void OnActiveLineChanged(AssDialogue *new_line);
+	virtual void OnSelectedSetChanged(const Selection &lines_added, const Selection &lines_removed);
 
-	/// DOCME
+public:
-	int linen;
 
 	/// DOCME
 	AudioDisplay *audio;
@@ -253,7 +257,6 @@ public:
 	void CommitText(bool weak=false);
 	void Update(bool timeOnly=false,bool weak=false,bool video=true);
 	void UpdateGlobals();
-	void SetToLine(int n,bool weak=false);
 	void UpdateFrameTiming();
 	void DoKeyPress(wxKeyEvent &event);
 	void Commit(bool stay);

aegisub/src/subs_edit_ctrl.cpp

@@ -269,7 +269,7 @@ void SubsTextEditCtrl::UpdateStyle(int start, int _length) {
 	if (OPT_GET("Subtitle/Highlight/Syntax")->GetBool() == 0) return;
 
 	// Check if it's a template line
-	AssDialogue *diag = control->grid->GetDialogue(control->linen);
+	AssDialogue *diag = control->grid->GetActiveLine();
 	bool templateLine = diag && diag->Comment && diag->Effect.Lower().StartsWith(_T("template"));
 	//bool templateCodeLine = diag && diag->Comment && diag->Effect.Lower().StartsWith(_T("code"));
 
@@ -781,7 +781,7 @@ void SubsTextEditCtrl::SetTextTo(const wxString _text) {
 void SubsTextEditCtrl::OnMouseEvent(wxMouseEvent &event) {
 	// Right click
 	if (event.ButtonUp(wxMOUSE_BTN_RIGHT)) {
-		if (control->linen >= 0) {
+		if (control->grid->GetActiveLine() != 0) {
 			int pos = PositionFromPoint(event.GetPosition());
 			ShowPopupMenu(pos);
 			return;
@@ -1007,7 +1007,7 @@ void SubsTextEditCtrl::OnSplitLinePreserve (wxCommandEvent &event) {
 	to = GetReverseUnicodePosition(to);
 	// Call SplitLine() with the text currently in the editbox.
 	// This makes sure we split what the user sees, not the committed line.
-	control->grid->SplitLine(control->linen,from,0,GetText());
+	control->grid->SplitLine(control->grid->GetDialogueIndex(control->grid->GetActiveLine()),from,0,GetText());
 }
 
 
@@ -1022,7 +1022,7 @@ void SubsTextEditCtrl::OnSplitLineEstimate (wxCommandEvent &event) {
 	to = GetReverseUnicodePosition(to);
 	// Call SplitLine() with the text currently in the editbox.
 	// This makes sure we split what the user sees, not the committed line.
-	control->grid->SplitLine(control->linen,from,1,GetText());
+	control->grid->SplitLine(control->grid->GetDialogueIndex(control->grid->GetActiveLine()),from,1,GetText());
 }
 
 

aegisub/src/subs_grid.cpp

@@ -269,7 +269,7 @@ void SubtitlesGrid::OnKeyDown(wxKeyEvent &event) {
 			if (n < nrows-1) {
 				SwapLines(n,n+1);
 				SelectRow(n+1);
-				editBox->SetToLine(n+1);
+				//editBox->SetToLine(n+1);
 			}
 			return;
 		}
@@ -279,7 +279,7 @@ void SubtitlesGrid::OnKeyDown(wxKeyEvent &event) {
 			if (n > 0) {
 				SwapLines(n-1,n);
 				SelectRow(n-1);
-				editBox->SetToLine(n-1);
+				//editBox->SetToLine(n-1);
 			}
 			return;
 		}
@@ -470,7 +470,7 @@ void SubtitlesGrid::OnInsertBefore (wxCommandEvent &event) {
 	// Insert it
 	InsertLine(def,n,false);
 	SelectRow(n);
-	editBox->SetToLine(n);
+	SetActiveLine(def);
 	EndBatch();
 }
 
@@ -502,7 +502,7 @@ void SubtitlesGrid::OnInsertAfter (wxCommandEvent &event) {
 	// Insert it
 	InsertLine(def,n,true);
 	SelectRow(n+1);
-	editBox->SetToLine(n+1);
+	SetActiveLine(def);
 	EndBatch();
 }
 
@@ -526,7 +526,7 @@ void SubtitlesGrid::OnInsertBeforeVideo (wxCommandEvent &event) {
 	// Insert it
 	InsertLine(def,n,false);
 	SelectRow(n);
-	editBox->SetToLine(n);
+	SetActiveLine(def);
 	EndBatch();
 }
 
@@ -550,7 +550,7 @@ void SubtitlesGrid::OnInsertAfterVideo (wxCommandEvent &event) {
 	// Insert it
 	InsertLine(def,n,true);
 	SelectRow(n+1);
-	editBox->SetToLine(n+1);
+	SetActiveLine(def);
 	EndBatch();
 }
 
@@ -828,11 +828,8 @@ void SubtitlesGrid::UpdateMaps() {
 		if (dlg) line_iter_map.insert(std::pair<AssDialogue*,entryIter>(dlg, it));
 	}
 
-	// Set edit box
 	if (editBox) {
-		int firstsel = GetFirstSelRow();
 		editBox->UpdateGlobals();
-		if (ass) editBox->SetToLine(firstsel);
 	}
 
 	// Finish setting layout
@@ -868,8 +865,10 @@ void SubtitlesGrid::SwapLines(int n1,int n2) {
 /// @param update 
 ///
 void SubtitlesGrid::InsertLine(AssDialogue *line,int n,bool after,bool update) {
-	AssDialogue *rel_line = GetDialogue(n) + (after?1:0);
+	AssDialogue *rel_line = GetDialogue(n + (after?1:0));
-	entryIter pos = line_iter_map[rel_line];
+	entryIter pos;
+	if (rel_line) pos = line_iter_map[rel_line];
+	else pos = ass->Line.end();
 	
 	entryIter newIter = ass->Line.insert(pos,line);
 	UpdateMaps();
@@ -1014,11 +1013,12 @@ void SubtitlesGrid::PasteLines(int n,bool pasteOver) {
 
 			// Set selection
 			if (!pasteOver) {
-				SelectRow(n);
+				Selection newsel;
-				for (int i=n+1;i<n+inserted;i++) {
+				for (int i=n;i<n+inserted;i++) {
-					SelectRow(i,true);
+					newsel.insert(GetDialogue(i));
 				}
-				editBox->SetToLine(n);
+				SetSelectedSet(newsel);
+				SetActiveLine(GetDialogue(GetFirstSelRow()));
 			}
 		}
 	}
@@ -1037,6 +1037,7 @@ void SubtitlesGrid::DeleteLines(wxArrayInt target, bool flagModified) {
 	// Check if it's wiping file
 	int deleted = 0;
 	entryIter before_first = line_iter_map[GetDialogue(0)]; --before_first;
+	int old_active_line_index = GetDialogueIndex(GetActiveLine());
 
 	// Delete lines
 	int size = target.Count();
@@ -1050,6 +1051,7 @@ void SubtitlesGrid::DeleteLines(wxArrayInt target, bool flagModified) {
 		AssDialogue *def = new AssDialogue;
 		++before_first;
 		ass->Line.insert(before_first, def);
+		old_active_line_index = 0;
 	}
 
 	// Update
@@ -1061,9 +1063,8 @@ void SubtitlesGrid::DeleteLines(wxArrayInt target, bool flagModified) {
 	}
 
 	// Update selected line
-	int newSelected = ClampSignedInteger32(editBox->linen, 0, GetRows()-1);
+	SelectRow(old_active_line_index);
-	editBox->SetToLine(newSelected);
+	SetActiveLine(GetDialogue(old_active_line_index));
-	SelectRow(newSelected);
 }
 
 
@@ -1118,10 +1119,13 @@ void SubtitlesGrid::JoinLines(int n1,int n2,bool concat) {
 	cur->Text = finalText;
 
 	// Delete remaining lines (this will auto commit)
-	DeleteLines(GetRangeArray(n1+1,n2));
+	DeleteLines(GetRangeArray(n1+1,n2), false);
+
+	ass->FlagAsModified(_("join lines"));
+	CommitChanges();
 
 	// Select new line
-	editBox->SetToLine(n1);
+	SetActiveLine(cur);
 	SelectRow(n1);
 }
 
@@ -1207,10 +1211,13 @@ void SubtitlesGrid::JoinAsKaraoke(int n1,int n2) {
 	cur->Text = finalText;
 
 	// Delete remaining lines (this will auto commit)
-	DeleteLines(GetRangeArray(n1+1,n2));
+	DeleteLines(GetRangeArray(n1+1,n2), false);
+
+	ass->FlagAsModified(_("join as karaoke"));
+	CommitChanges();
 
 	// Select new line
-	editBox->SetToLine(n1);
+	SetActiveLine(cur);
 	SelectRow(n1);
 }
 
@@ -1243,11 +1250,12 @@ void SubtitlesGrid::DuplicateLines(int n1,int n2,bool nextFrame) {
 	}
 
 	// Select new lines
-	SelectRow(n1+step,false);
+	Selection newsel;
-	for (int i=n1+1;i<=n2;i++) {
+	for (int i=n1;i<=n2;i++) {
-		SelectRow(i+step,true);
+		newsel.insert(GetDialogue(i+step));
 	}
-	editBox->SetToLine(n1+step);
+	SetSelectedSet(newsel);
+	SetActiveLine(GetDialogue(n1+step));
 }
 
 
@@ -1322,7 +1330,7 @@ void SubtitlesGrid::SplitLine(int n,int pos,int mode,wxString textIn) {
 	}
 
 	// Update editbox and audio
-	editBox->SetToLine(n);
+	//editBox->SetToLine(n);
 
 	// Commit
 	ass->FlagAsModified(_("split"));

aegisub/src/video_context.cpp

@@ -545,7 +545,7 @@ void VideoContext::Play() {
 ///
 void VideoContext::PlayLine() {
 	// Get line
-	AssDialogue *curline = grid->GetDialogue(grid->editBox->linen);
+	AssDialogue *curline = grid->GetActiveLine();
 	if (!curline) return;
 
 	// Start playing audio

aegisub/src/video_slider.cpp

@@ -323,7 +323,7 @@ void VideoSlider::OnKeyDown(wxKeyEvent &event) {
 			int cur;
 			if (sel.Count() > 0) cur = sel[0];
 			else {
-				grid->editBox->SetToLine(0);
+				grid->SetActiveLine(grid->GetDialogue(0));
 				grid->SelectRow(0);
 				cur = 0;
 			}
@@ -342,7 +342,7 @@ void VideoSlider::OnKeyDown(wxKeyEvent &event) {
 					else if (VideoContext::Get()->GetFrameN() < target2) VideoContext::Get()->JumpToFrame(target2);
 					else {
 						if (cur+1 >= grid->GetRows()) return;
-						grid->editBox->SetToLine(cur+1);
+						grid->SetActiveLine(grid->GetDialogue(cur+1));
 						grid->SelectRow(cur+1);
 						grid->MakeCellVisible(cur+1,0);
 						grid->SetVideoToSubs(true);
@@ -358,7 +358,7 @@ void VideoSlider::OnKeyDown(wxKeyEvent &event) {
 					else if (VideoContext::Get()->GetFrameN() > target1) VideoContext::Get()->JumpToFrame(target1);
 					else {
 						if (cur-1 < 0) return;
-						grid->editBox->SetToLine(cur-1);
+						grid->SetActiveLine(grid->GetDialogue(cur-1));
 						grid->SelectRow(cur-1);
 						grid->MakeCellVisible(cur-1,0);
 						grid->SetVideoToSubs(false);

aegisub/src/visual_tool.cpp

@@ -290,7 +290,7 @@ void VisualTool<FeatureType>::Commit(bool full, wxString message) {
 template<class FeatureType>
 AssDialogue* VisualTool<FeatureType>::GetActiveDialogueLine() {
 	SubtitlesGrid *grid = VideoContext::Get()->grid;
-	AssDialogue *diag = grid->GetDialogue(grid->editBox->linen);
+	AssDialogue *diag = grid->GetActiveLine();
 	if (grid->IsDisplayed(diag))
 		return diag;
 	return NULL;
@@ -392,20 +392,21 @@ template<class FeatureType>
 void VisualTool<FeatureType>::SetEditbox(int lineN) {
 	VideoContext* con = VideoContext::Get();
 	if (lineN > -1) {
-		con->grid->editBox->SetToLine(lineN);
+		con->grid->SetActiveLine(con->grid->GetDialogue(lineN));
 		con->grid->SelectRow(lineN, true);
 	}
 	else {
-		wxArrayInt sel = GetSelection();
+		Selection sel;
+		con->grid->GetSelectedSet(sel);
 		// If there is a selection and the edit box's line is in it, do nothing
 		// Otherwise set the edit box if there is a selection or the selection
 		// to the edit box if there is no selection
 		if (sel.empty()) {
-			con->grid->SelectRow(con->grid->editBox->linen, true);
+			sel.insert(con->grid->GetActiveLine());
-			return;
+			con->grid->SetSelectedSet(sel);
 		}
-		else if (!std::binary_search(sel.begin(), sel.end(), con->grid->editBox->linen)) {
+		else if (sel.find(con->grid->GetActiveLine()) == sel.end()) {
-			con->grid->editBox->SetToLine(sel[0]);
+			con->grid->SetActiveLine(con->grid->GetDialogue(con->grid->GetFirstSelRow()));
 		}
 	}
 }