Aegisub/aegisub/src/audio_timing_dialogue.cpp
Thomas Goyne d5577b994c Move lead in/out logic to the timing controllers
This makes adding lead in/out work correctly when autocommit is
disabled, and improves the behavior of adding lead-in when in karaoke
mode.

Originally committed to SVN as r6502.
2012-02-22 22:00:54 +00:00

773 lines
24 KiB
C++

// Copyright (c) 2010, Niels Martin Hansen
// 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/
//
// $Id$
/// @file audio_timing_dialogue.cpp
/// @brief Default timing mode for dialogue subtitles
/// @ingroup audio_ui
#ifndef AGI_PRE
#include <stdint.h>
#include <wx/pen.h>
#endif
#include "ass_dialogue.h"
#include "ass_file.h"
#include "ass_time.h"
#include "audio_renderer.h"
#include "audio_timing.h"
#include "command/command.h"
#include "include/aegisub/context.h"
#include "main.h"
#include "pen.h"
#include "selection_controller.h"
#include "utils.h"
class TimeableLine;
/// @class DialogueTimingMarker
/// @brief AudioMarker implementation for AudioTimingControllerDialogue
///
/// Audio marker intended to live in pairs of two, taking styles depending
/// on which marker in the pair is to the left and which is to the right.
class DialogueTimingMarker : public AudioMarker {
/// Current ms position of this marker
int position;
/// Draw style for the marker
const Pen *style;
/// Feet style for the marker
FeetStyle feet;
/// Rendering style of the owning line, needed for sorting
AudioRenderingStyle type;
/// The line which owns this marker
TimeableLine *line;
public:
int GetPosition() const { return position; }
wxPen GetStyle() const { return *style; }
FeetStyle GetFeet() const { return feet; }
bool CanSnap() const { return true; }
/// Move the marker to a new position
/// @param new_position The position to move the marker to, in milliseconds
///
/// This notifies the owning line of the change, so that it can ensure that
/// this marker has the appropriate rendering style.
void SetPosition(int new_position);
/// Constructor
/// @param position Initial position of this marker
/// @param style Rendering style of this marker
/// @param feet Foot style of this marker
/// @param type Type of this marker, used only for sorting
/// @param line Line which this is a marker for
DialogueTimingMarker(int position, const Pen *style, FeetStyle feet, AudioRenderingStyle type, TimeableLine *line)
: position(position)
, style(style)
, feet(feet)
, type(type)
, line(line)
{
}
DialogueTimingMarker(DialogueTimingMarker const& other, TimeableLine *line)
: position(other.position)
, style(other.style)
, feet(other.feet)
, type(other.type)
, line(line)
{
}
/// Get the line which this is a marker for
TimeableLine *GetLine() const { return line; }
/// Implicit decay to the position of the marker
operator int() const { return position; }
/// Comparison operator
///
/// Compares first on position, then on audio rendering style so that the
/// markers for the active line end up after those for the inactive lines.
bool operator<(DialogueTimingMarker const& other) const
{
if (position < other.position) return true;
if (position > other.position) return false;
return type < other.type;
}
/// Swap the rendering style of this marker with that of the passed marker
void SwapStyles(DialogueTimingMarker &other)
{
std::swap(style, other.style);
std::swap(feet, other.feet);
}
};
/// A comparison predicate for pointers to dialogue markers and millisecond positions
struct marker_ptr_cmp
{
bool operator()(const DialogueTimingMarker *lft, const DialogueTimingMarker *rgt) const
{
return *lft < *rgt;
}
bool operator()(const DialogueTimingMarker *lft, int rgt) const
{
return *lft < rgt;
}
bool operator()(int lft, const DialogueTimingMarker *rgt) const
{
return lft < *rgt;
}
};
/// @class TimeableLine
/// @brief A single dialogue line which can be timed via AudioTimingControllerDialogue
///
/// This class provides markers and styling ranges for a single dialogue line,
/// both active and inactive. In addition, it can apply changes made via those
/// markers to the tracked dialogue line.
class TimeableLine {
/// The current tracked dialogue line
AssDialogue *line;
/// The rendering style of this line
AudioRenderingStyle style;
/// One of the markers. Initially the left marker, but the user may change this.
DialogueTimingMarker marker1;
/// One of the markers. Initially the right marker, but the user may change this.
DialogueTimingMarker marker2;
/// Pointer to whichever marker happens to be on the left
DialogueTimingMarker *left_marker;
/// Pointer to whichever marker happens to be on the right
DialogueTimingMarker *right_marker;
public:
/// Constructor
/// @param style Rendering style to use for this line's time range
/// @param style_left The rendering style for the start marker
/// @param style_right The rendering style for the end marker
TimeableLine(AudioRenderingStyle style, const Pen *style_left, const Pen *style_right)
: line(0)
, style(style)
, marker1(0, style_left, AudioMarker::Feet_Right, style, this)
, marker2(0, style_right, AudioMarker::Feet_Left, style, this)
, left_marker(&marker1)
, right_marker(&marker2)
{
}
/// Explicit copy constructor needed due to that the markers have a pointer to this
TimeableLine(TimeableLine const& other)
: line(other.line)
, style(other.style)
, marker1(*other.left_marker, this)
, marker2(*other.right_marker, this)
, left_marker(&marker1)
, right_marker(&marker2)
{
}
/// Get the tracked dialogue line
AssDialogue *GetLine() const { return line; }
/// Get the time range for this line
operator TimeRange() const { return TimeRange(*left_marker, *right_marker); }
/// Add this line's style to the style ranges
void GetStyleRange(AudioRenderingStyleRanges *ranges) const
{
ranges->AddRange(*left_marker, *right_marker, style);
}
/// Get this line's markers
/// @param c Vector to add the markers to
void GetMarkers(std::vector<DialogueTimingMarker*> *c) const
{
c->push_back(left_marker);
c->push_back(right_marker);
}
/// Get the leftmost of the markers
DialogueTimingMarker *GetLeftMarker() { return left_marker; }
const DialogueTimingMarker *GetLeftMarker() const { return left_marker; }
/// Get the rightmost of the markers
DialogueTimingMarker *GetRightMarker() { return right_marker; }
const DialogueTimingMarker *GetRightMarker() const { return right_marker; }
/// Does this line have a marker in the given range?
bool ContainsMarker(TimeRange const& range) const
{
return range.contains(marker1) || range.contains(marker2);
}
/// Check if the markers have the correct styles, and correct them if needed
void CheckMarkers()
{
if (*right_marker < *left_marker)
{
marker1.SwapStyles(marker2);
std::swap(left_marker, right_marker);
}
}
/// Apply any changes made here to the tracked dialogue line
void Apply()
{
if (line)
{
line->Start = left_marker->GetPosition();
line->End = right_marker->GetPosition();
}
}
/// Set the dialogue line which this is tracking and reset the markers to
/// the line's time range
void SetLine(AssDialogue *new_line)
{
line = new_line;
marker1.SetPosition(new_line->Start);
marker2.SetPosition(new_line->End);
}
};
void DialogueTimingMarker::SetPosition(int new_position) {
position = new_position;
line->CheckMarkers();
}
/// @class AudioTimingControllerDialogue
/// @brief Default timing mode for dialogue subtitles
///
/// Displays a start and end marker for an active subtitle line, and possibly
/// some of the inactive lines. The markers for the active line can be dragged,
/// updating the audio selection and the start/end time of that line. In
/// addition, any markers for inactive lines that start/end at the same time
/// as the active line starts/ends can optionally be dragged along with the
/// active line's markers, updating those lines as well.
class AudioTimingControllerDialogue : public AudioTimingController, private SelectionListener<AssDialogue> {
/// The rendering style for the active line's start marker
Pen style_left;
/// The rendering style for the active line's end marker
Pen style_right;
/// The rendering style for the start and end markers of inactive lines
Pen style_inactive;
/// The currently active line
TimeableLine active_line;
/// Inactive lines which are currently modifiable
std::list<TimeableLine> inactive_lines;
/// All audio markers for active and inactive lines, sorted by position
std::vector<DialogueTimingMarker*> markers;
/// Marker provider for video keyframes
AudioMarkerProviderKeyframes keyframes_provider;
/// Marker provider for video playback position
VideoPositionMarkerProvider video_position_provider;
/// The set of lines which have been modified and need to have their
/// changes applied on commit
std::set<TimeableLine*> modified_lines;
/// Commit id for coalescing purposes when in auto commit mode
int commit_id;
/// The owning project context
agi::Context *context;
/// Autocommit option
const agi::OptionValue *auto_commit;
const agi::OptionValue *inactive_line_mode;
const agi::OptionValue *inactive_line_comments;
agi::signal::Connection commit_connection;
agi::signal::Connection audio_open_connection;
agi::signal::Connection inactive_line_mode_connection;
agi::signal::Connection inactive_line_comment_connection;
/// Update the audio controller's selection
void UpdateSelection();
/// Regenerate the list of timeable inactive lines
void RegenerateInactiveLines();
/// Add a line to the list of timeable inactive lines
void AddInactiveLine(AssDialogue *diag);
/// Regenerate the list of active and inactive line markers
void RegenerateMarkers();
/// @brief Set the position of markers and announce the change to the world
/// @param upd_markers Markers to move
/// @param ms New position of the markers
void SetMarkers(std::vector<AudioMarker*> const& upd_markers, int ms);
/// Snap a position to a nearby marker, if any
/// @param position Position to snap
/// @param snap_range Maximum distance to snap in milliseconds
/// @param exclude Markers which should be excluded from the potential snaps
int SnapPosition(int position, int snap_range, std::vector<AudioMarker*> const& exclude) const;
/// Commit all pending changes to the file
/// @param user_triggered Is this a user-initiated commit or an autocommit
void DoCommit(bool user_triggered);
// SubtitleSelectionListener interface
void OnActiveLineChanged(AssDialogue *new_line);
void OnSelectedSetChanged(const Selection &lines_added, const Selection &lines_removed);
// AssFile events
void OnFileChanged(int type);
public:
// AudioMarkerProvider interface
void GetMarkers(const TimeRange &range, AudioMarkerVector &out_markers) const;
// AudioTimingController interface
wxString GetWarningMessage() const;
TimeRange GetIdealVisibleTimeRange() const;
TimeRange GetPrimaryPlaybackRange() const;
void GetRenderingStyles(AudioRenderingStyleRanges &ranges) const;
void GetLabels(TimeRange const& range, std::vector<AudioLabel> &out) const { }
void Next();
void Prev();
void Commit();
void Revert();
void AddLeadIn();
void AddLeadOut();
bool IsNearbyMarker(int ms, int sensitivity) const;
std::vector<AudioMarker*> OnLeftClick(int ms, bool ctrl_down, int sensitivity, int snap_range);
std::vector<AudioMarker*> OnRightClick(int ms, bool, int sensitivity, int snap_range);
void OnMarkerDrag(std::vector<AudioMarker*> const& markers, int new_position, int snap_range);
/// Constructor
/// @param c Project context
AudioTimingControllerDialogue(agi::Context *c);
/// Destructor
~AudioTimingControllerDialogue();
};
AudioTimingController *CreateDialogueTimingController(agi::Context *c)
{
return new AudioTimingControllerDialogue(c);
}
AudioTimingControllerDialogue::AudioTimingControllerDialogue(agi::Context *c)
: style_left("Colour/Audio Display/Line boundary Start", "Audio/Line Boundaries Thickness")
, style_right("Colour/Audio Display/Line boundary End", "Audio/Line Boundaries Thickness")
, style_inactive("Colour/Audio Display/Line Boundary Inactive Line", "Audio/Line Boundaries Thickness")
, active_line(AudioStyle_Primary, &style_left, &style_right)
, keyframes_provider(c, "Audio/Display/Draw/Keyframes in Dialogue Mode")
, video_position_provider(c)
, commit_id(-1)
, context(c)
, auto_commit(OPT_GET("Audio/Auto/Commit"))
, inactive_line_mode(OPT_GET("Audio/Inactive Lines Display Mode"))
, inactive_line_comments(OPT_GET("Audio/Display/Draw/Inactive Comments"))
, commit_connection(c->ass->AddCommitListener(&AudioTimingControllerDialogue::OnFileChanged, this))
, inactive_line_mode_connection(OPT_SUB("Audio/Inactive Lines Display Mode", &AudioTimingControllerDialogue::RegenerateInactiveLines, this))
, inactive_line_comment_connection(OPT_SUB("Audio/Display/Draw/Inactive Comments", &AudioTimingControllerDialogue::RegenerateInactiveLines, this))
{
c->selectionController->AddSelectionListener(this);
keyframes_provider.AddMarkerMovedListener(std::tr1::bind(std::tr1::ref(AnnounceMarkerMoved)));
video_position_provider.AddMarkerMovedListener(std::tr1::bind(std::tr1::ref(AnnounceMarkerMoved)));
Revert();
}
AudioTimingControllerDialogue::~AudioTimingControllerDialogue()
{
context->selectionController->RemoveSelectionListener(this);
}
void AudioTimingControllerDialogue::GetMarkers(const TimeRange &range, AudioMarkerVector &out_markers) const
{
// The order matters here; later markers are painted on top of earlier
// markers, so the markers that we want to end up on top need to appear last
// Copy inactive line markers in the range
copy(
lower_bound(markers.begin(), markers.end(), range.begin(), marker_ptr_cmp()),
upper_bound(markers.begin(), markers.end(), range.end(), marker_ptr_cmp()),
back_inserter(out_markers));
keyframes_provider.GetMarkers(range, out_markers);
video_position_provider.GetMarkers(range, out_markers);
}
void AudioTimingControllerDialogue::OnActiveLineChanged(AssDialogue *new_line)
{
Revert();
}
void AudioTimingControllerDialogue::OnSelectedSetChanged(const Selection &lines_added, const Selection &lines_removed)
{
/// @todo Create new passive markers, perhaps
}
void AudioTimingControllerDialogue::OnFileChanged(int type) {
if (type & AssFile::COMMIT_DIAG_TIME)
Revert();
else if (type & AssFile::COMMIT_DIAG_ADDREM)
RegenerateInactiveLines();
}
wxString AudioTimingControllerDialogue::GetWarningMessage() const
{
// We have no warning messages currently, maybe add the old "Modified" message back later?
return wxString();
}
TimeRange AudioTimingControllerDialogue::GetIdealVisibleTimeRange() const
{
return GetPrimaryPlaybackRange();
}
TimeRange AudioTimingControllerDialogue::GetPrimaryPlaybackRange() const
{
return active_line;
}
void AudioTimingControllerDialogue::GetRenderingStyles(AudioRenderingStyleRanges &ranges) const
{
active_line.GetStyleRange(&ranges);
for_each(inactive_lines.begin(), inactive_lines.end(),
bind(&TimeableLine::GetStyleRange, std::tr1::placeholders::_1, &ranges));
}
void AudioTimingControllerDialogue::Next()
{
context->selectionController->NextLine();
}
void AudioTimingControllerDialogue::Prev()
{
context->selectionController->PrevLine();
}
void AudioTimingControllerDialogue::Commit()
{
DoCommit(true);
}
void AudioTimingControllerDialogue::DoCommit(bool user_triggered)
{
// Store back new times
if (modified_lines.size())
{
for_each(modified_lines.begin(), modified_lines.end(),
std::tr1::mem_fn(&TimeableLine::Apply));
commit_connection.Block();
if (user_triggered)
{
context->ass->Commit(_("timing"), AssFile::COMMIT_DIAG_TIME);
commit_id = -1; // never coalesce with a manually triggered commit
}
else
{
AssDialogue *amend = modified_lines.size() == 1 ? (*modified_lines.begin())->GetLine() : 0;
commit_id = context->ass->Commit(_("timing"), AssFile::COMMIT_DIAG_TIME, commit_id, amend);
}
commit_connection.Unblock();
modified_lines.clear();
}
if (user_triggered && OPT_GET("Audio/Next Line on Commit")->GetBool())
{
int new_end_ms = *active_line.GetRightMarker();
cmd::call("grid/line/next/create", context);
if (*active_line.GetRightMarker() == 0) {
const int default_duration = OPT_GET("Timing/Default Duration")->GetInt();
// Setting right first here so that they don't get switched and the
// same marker gets set twice
active_line.GetRightMarker()->SetPosition(new_end_ms + default_duration);
active_line.GetLeftMarker()->SetPosition(new_end_ms);
sort(markers.begin(), markers.end(), marker_ptr_cmp());
modified_lines.insert(&active_line);
UpdateSelection();
}
}
}
void AudioTimingControllerDialogue::Revert()
{
if (AssDialogue *line = context->selectionController->GetActiveLine())
{
active_line.SetLine(line);
modified_lines.clear();
AnnounceUpdatedPrimaryRange();
if (inactive_line_mode->GetInt() == 0)
AnnounceUpdatedStyleRanges();
}
RegenerateInactiveLines();
}
void AudioTimingControllerDialogue::AddLeadIn()
{
DialogueTimingMarker *m = active_line.GetLeftMarker();
SetMarkers(std::vector<AudioMarker*>(1, m), *m - OPT_GET("Audio/Lead/IN")->GetInt());
}
void AudioTimingControllerDialogue::AddLeadOut()
{
DialogueTimingMarker *m = active_line.GetRightMarker();
SetMarkers(std::vector<AudioMarker*>(1, m), *m + OPT_GET("Audio/Lead/OUT")->GetInt());
}
bool AudioTimingControllerDialogue::IsNearbyMarker(int ms, int sensitivity) const
{
assert(sensitivity >= 0);
return active_line.ContainsMarker(TimeRange(ms-sensitivity, ms+sensitivity));
}
std::vector<AudioMarker*> AudioTimingControllerDialogue::OnLeftClick(int ms, bool ctrl_down, int sensitivity, int snap_range)
{
assert(sensitivity >= 0);
assert(snap_range >= 0);
DialogueTimingMarker *left = active_line.GetLeftMarker();
DialogueTimingMarker *right = active_line.GetRightMarker();
int dist_l = tabs(*left - ms);
int dist_r = tabs(*right - ms);
if (dist_l > sensitivity && dist_r > sensitivity)
{
// Clicked far from either marker:
// Insta-set the left marker to the clicked position and return the
// right as the dragged one, such that if the user does start dragging,
// he will create a new selection from scratch
std::vector<AudioMarker*> ret(1, left);
SetMarkers(ret, SnapPosition(ms, snap_range, ret));
ret[0] = right;
return ret;
}
DialogueTimingMarker *clicked = dist_l <= dist_r ? left : right;
std::vector<AudioMarker*> ret;
if (ctrl_down)
{
// The use of GetPosition here is important, as otherwise it'll start
// after lines ending at the same time as the active line begins
std::vector<DialogueTimingMarker*>::iterator it =
lower_bound(markers.begin(), markers.end(), clicked->GetPosition(), marker_ptr_cmp());
for(; it != markers.end() && !(*clicked < **it); ++it)
ret.push_back(*it);
}
else
ret.push_back(clicked);
// Left-click within drag range should still move the left marker to the
// clicked position, but not the right marker
if (clicked == left)
SetMarkers(ret, SnapPosition(ms, snap_range, ret));
return ret;
}
std::vector<AudioMarker*> AudioTimingControllerDialogue::OnRightClick(int ms, bool, int sensitivity, int snap_range)
{
std::vector<AudioMarker*> ret(1, active_line.GetRightMarker());
SetMarkers(ret, SnapPosition(ms, snap_range, ret));
return ret;
}
void AudioTimingControllerDialogue::OnMarkerDrag(std::vector<AudioMarker*> const& markers, int new_position, int snap_range)
{
SetMarkers(markers, SnapPosition(new_position, snap_range, markers));
}
void AudioTimingControllerDialogue::UpdateSelection()
{
AnnounceUpdatedPrimaryRange();
AnnounceUpdatedStyleRanges();
}
void AudioTimingControllerDialogue::SetMarkers(std::vector<AudioMarker*> const& upd_markers, int ms)
{
// Since we're moving markers, the sorted list of markers will need to be
// resorted. To avoid resorting the entire thing, find the subrange that
// is effected.
int min_ms = ms;
int max_ms = ms;
for (size_t i = 0; i < upd_markers.size(); ++i)
{
DialogueTimingMarker *marker = static_cast<DialogueTimingMarker*>(upd_markers[i]);
min_ms = std::min<int>(*marker, min_ms);
max_ms = std::max<int>(*marker, max_ms);
}
std::vector<DialogueTimingMarker*>::iterator
begin = lower_bound(markers.begin(), markers.end(), min_ms, marker_ptr_cmp()),
end = upper_bound(begin, markers.end(), max_ms, marker_ptr_cmp());
// Update the markers
for (size_t i = 0; i < upd_markers.size(); ++i)
{
DialogueTimingMarker *marker = static_cast<DialogueTimingMarker*>(upd_markers[i]);
marker->SetPosition(ms);
modified_lines.insert(marker->GetLine());
}
// Resort the range
sort(begin, end, marker_ptr_cmp());
if (auto_commit->GetBool()) DoCommit(false);
UpdateSelection();
AnnounceMarkerMoved();
}
static bool noncomment_dialogue(AssEntry *e)
{
if (AssDialogue *diag = dynamic_cast<AssDialogue*>(e))
return !diag->Comment;
return false;
}
static bool dialogue(AssEntry *e)
{
return !!dynamic_cast<AssDialogue*>(e);
}
void AudioTimingControllerDialogue::RegenerateInactiveLines()
{
bool (*predicate)(AssEntry*) = inactive_line_comments->GetBool() ? dialogue : noncomment_dialogue;
bool was_empty = inactive_lines.empty();
inactive_lines.clear();
switch (int mode = inactive_line_mode->GetInt())
{
case 1: // Previous line only
case 2: // Previous and next lines
if (AssDialogue *line = context->selectionController->GetActiveLine())
{
std::list<AssEntry*>::iterator current_line =
find(context->ass->Line.begin(), context->ass->Line.end(), line);
std::list<AssEntry*>::iterator prev = current_line;
while (--prev != context->ass->Line.begin() && !predicate(*prev)) ;
if (prev != context->ass->Line.begin())
AddInactiveLine(static_cast<AssDialogue*>(*prev));
if (mode == 2)
{
std::list<AssEntry*>::iterator next =
find_if(++current_line, context->ass->Line.end(), predicate);
if (next != context->ass->Line.end())
AddInactiveLine(static_cast<AssDialogue*>(*next));
}
}
break;
case 3: // All inactive lines
{
AssDialogue *active_line = context->selectionController->GetActiveLine();
for (std::list<AssEntry*>::const_iterator it = context->ass->Line.begin(); it != context->ass->Line.end(); ++it)
{
if (*it != active_line && predicate(*it))
AddInactiveLine(static_cast<AssDialogue*>(*it));
}
break;
}
default:
if (was_empty)
{
RegenerateMarkers();
return;
}
}
AnnounceUpdatedStyleRanges();
RegenerateMarkers();
}
void AudioTimingControllerDialogue::AddInactiveLine(AssDialogue *diag)
{
inactive_lines.push_back(TimeableLine(AudioStyle_Inactive, &style_inactive, &style_inactive));
inactive_lines.back().SetLine(diag);
}
void AudioTimingControllerDialogue::RegenerateMarkers()
{
markers.clear();
active_line.GetMarkers(&markers);
for_each(inactive_lines.begin(), inactive_lines.end(),
bind(&TimeableLine::GetMarkers, std::tr1::placeholders::_1, &markers));
sort(markers.begin(), markers.end(), marker_ptr_cmp());
AnnounceMarkerMoved();
}
int AudioTimingControllerDialogue::SnapPosition(int position, int snap_range, std::vector<AudioMarker*> const& exclude) const
{
if (snap_range <= 0)
return position;
TimeRange snap_time_range(position - snap_range, position + snap_range);
const AudioMarker *snap_marker = 0;
AudioMarkerVector potential_snaps;
GetMarkers(snap_time_range, potential_snaps);
for (AudioMarkerVector::iterator mi = potential_snaps.begin(); mi != potential_snaps.end(); ++mi)
{
if ((*mi)->CanSnap() && find(exclude.begin(), exclude.end(), *mi) == exclude.end())
{
if (!snap_marker)
snap_marker = *mi;
else if (tabs((*mi)->GetPosition() - position) < tabs(snap_marker->GetPosition() - position))
snap_marker = *mi;
}
}
if (snap_marker)
return snap_marker->GetPosition();
return position;
}