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Work on making delete undoable.

This commit is contained in:
Jonathan Moore Liles 2008-02-27 14:04:17 -06:00
parent 3d57bf5c52
commit 66815ae8fb
7 changed files with 155 additions and 43 deletions
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99
Loggable.C
View File

@ -31,6 +31,7 @@ int Loggable::_level = 0;
int Loggable::_undo_index = 1;
vector <Loggable *> Loggable::_loggables;
map <string, create_func*> Loggable::_class_map;
bool
Loggable::open ( const char *filename )
@ -45,6 +46,7 @@ Loggable::open ( const char *filename )
}
/** sigh. parse a string of ":name value :name value" pairs into an array of strings, one per pair */
// FIXME: doesn't handle the case of :name ":foo bar". Also, quotes should be removed here, not in client code.
static
char **
parse_alist( const char *s )
@ -94,6 +96,17 @@ parse_alist( const char *s )
}
static
void free_sa ( char **sa )
{
char **a = sa;
for ( ; *a; a++ )
free( *a );
free( sa );
}
void
Loggable::undo ( void )
{
@ -113,18 +126,22 @@ Loggable::undo ( void )
// FIXME: handle blocks
int i = 1;
/* move back _undo_index lines from the end */
/* move back _undo_index items from the end */
for ( int j = _undo_index; j-- ; )
for ( --s; *s && s >= buf; --s, ++i )
{
if ( *s == '\n' )
{
// s++;
if ( *(s + 1) == '\t' )
continue;
break;
}
}
s++;
strtok( s, "\n" );
buf[ len ] = NULL;
// fsync( fileno( _fp ) );
@ -144,24 +161,59 @@ Loggable::undo ( void )
int id;
sscanf( s, "%*s %X ", &id );
Loggable *l = find( id );
assert( l );
// assert( l );
char classname[40];
char command[40];
char *arguments;
sscanf( s, "%*s %*X %s %*[^\n<] << %a[^\n]", command, &arguments );
sscanf( s, "%s %*X %s %*[^\n<] << %a[^\n]", classname, command, &arguments );
if ( ! strcmp( command, "set" ) )
int ui = _undo_index;
if ( ! l )
{
printf( "got set command.\n" );
char **sa = parse_alist( arguments );
l->set( sa );
printf( "corrupt undo?\n" );
abort();
}
if ( ! strcmp( command, "destroy" ) )
{
printf( "should create new %s here\n", classname );
char **sa = parse_alist( arguments );
_class_map[ string( classname ) ]( sa );
}
else
if ( ! strcmp( command, "set" ) )
{
printf( "got set command.\n" );
char **sa = parse_alist( arguments );
l->log_start();
l->set( sa );
l->log_end();
}
else
if ( ! strcmp( command, "create" ) )
{
int id = l->id();
delete l;
_loggables[ id ] = NULL;
}
// FIXME: bogus... needs to account for multiple events.
_undo_index = ui + 1;
++_undo_index;
delete buf;
@ -184,17 +236,6 @@ Loggable::log ( const char *fmt, ... )
}
static
void free_sa ( char **sa )
{
char **a = sa;
for ( ; *a; a++ )
free( *a );
free( sa );
}
void
Loggable::log_print( char **o, char **n )
{
@ -244,10 +285,6 @@ log_diff ( char **sa1, char **sa2 )
return w == 0 ? false : true;
}
void
Loggable::log_start ( void )
{
@ -256,6 +293,7 @@ Loggable::log_start ( void )
++_nest;
_undo_index = 1;
}
void
@ -300,7 +338,7 @@ void
Loggable::log_create ( void )
{
indent();
log( "%s 0x%X new ", class_name(), _id );
log( "%s 0x%X create ", class_name(), _id );
char **sa = log_dump();
@ -317,11 +355,12 @@ void
Loggable::log_destroy ( void )
{
indent();
log( "%s 0x%X destroy ", class_name(), _id );
log( "%s 0x%X destroy (nothing) << ", class_name(), _id );
char **sa = log_dump();
log_print( sa, NULL );
// log_print( sa, NULL );
log_print( NULL, sa );
free_sa( sa );
}

29
Loggable.H
View File

@ -28,6 +28,13 @@
#include <vector>
using std::vector;
#include <map>
using std::map;
#include <string>
using std::string;
class Loggable;
typedef Loggable *(create_func)(char **);
class Logger;
class Loggable
@ -40,6 +47,8 @@ class Loggable
static vector <Loggable *> _loggables;
static map <string, create_func*> _class_map;
private:
int _id;
@ -65,13 +74,14 @@ public:
static bool open ( const char *filename );
static void undo ( void );
static int undo_index ( void ) { return _undo_index; }
static
void
block_start ( void )
{
indent();
log( "{\n" );
// log( "{\n" );
++Loggable::_level;
}
static
@ -80,7 +90,7 @@ public:
{
assert( --Loggable::_level >= 0 );
indent();
log( "}\n" );
// log( "}\n" );
}
static
@ -102,6 +112,21 @@ public:
_loggables.push_back( this );
}
virtual ~Loggable ( )
{
}
static
void
register_create ( const char *name, create_func *func )
{
printf( "registering %s to %p\n", name, func );
_class_map[ string( name ) ] = func;
}
/* log messages for journal */
virtual const char *class_name ( void ) = 0;

47
Region.H
View File

@ -63,15 +63,18 @@ protected:
char ** log_dump ( void )
{
// char *r;
char **sa = (char**)malloc( sizeof( char* ) * 6 );
char **sa = (char**)malloc( sizeof( char* ) * 7 );
sa[5] = NULL;
int i = 0;
asprintf( &sa[0], ":x %lu", _offset );
asprintf( &sa[1], ":l %lu", _start );
asprintf( &sa[2], ":r %lu", _end );
asprintf( &sa[3], ":selected %d", _selected );
asprintf( &sa[4], ":gain %f", _scale );
asprintf( &sa[ i++ ], ":source \"%s\"", _clip->name() );
asprintf( &sa[ i++ ], ":x %lu", _offset );
asprintf( &sa[ i++ ], ":l %lu", _start );
asprintf( &sa[ i++ ], ":r %lu", _end );
asprintf( &sa[ i++ ], ":selected %d", _selected );
asprintf( &sa[ i++ ], ":gain %f", _scale );
sa[ i ] = NULL;
// asprintf( &sa[4], ":track 0x%X", _track->id() );
// asprintf( &r, ":x %lu\n:l %lu\n:r %lu\n:selected %d\n:gain %f", _offset, _start, _end, _selected, _scale );
@ -90,6 +93,12 @@ protected:
char *v = s + strlen( s ) + 1;
if ( *v == '"' )
{
v++;
v[ strlen( v ) - 2 ] = '\0';
}
if ( ! strcmp( s, ":x" ) )
_offset = atol( v );
else
@ -104,7 +113,9 @@ protected:
else
if ( ! strcmp( s, ":gain" ) )
_scale = atof( v );
else
if ( ! strcmp( s, ":source" ) )
_clip = Audio_File::from_file( v );
/* else */
/* if ( ! strcmp( s, ":track" ) ) */
/* { */
@ -123,11 +134,29 @@ protected:
free( sa );
_track->redraw();
if ( _track )
_track->redraw();
}
Region ( )
{
init();
}
public:
/* for loggable */
static Loggable *
create ( char **sa )
{
Region *r = new Region;
r->set( sa );
return (Loggable *)r;
}
Fl_Boxtype box ( void ) const { return Region::_box; }
Fl_Align align ( void ) const { return (Fl_Align)(FL_ALIGN_LEFT | FL_ALIGN_BOTTOM /*| FL_ALIGN_CLIP*/ | FL_ALIGN_INSIDE); }

4
Timeline.C
View File

@ -55,7 +55,9 @@ cb_vscroll ( Fl_Widget *w, void *v )
timeline->tracks->position( timeline->tracks->x(), (timeline->rulers->y() + timeline->rulers->h()) - sb->value() );
timeline->yposition = sb->value();
timeline->vscroll->range( 0, timeline->tracks->h() - timeline->h() - timeline->rulers->h() );
// timeline->vscroll->range( 0, timeline->tracks->h() - timeline->h() - timeline->rulers->h() );
sb->value( sb->value(), 30, 0, min( timeline->tracks->h(), timeline->tracks->h() - timeline->h() - timeline->rulers->h() ) );
timeline->damage( FL_DAMAGE_SCROLL );
}

5
Track.H
View File

@ -91,8 +91,11 @@ public:
log_create();
}
~Track ( )
virtual ~Track ( )
{
/* FIXME: what to do with regions? */
parent()->redraw();
parent()->remove( this );
log_destroy();
}

6
Track_Widget.H
View File

@ -53,6 +53,12 @@ public:
_selected = false;
}
virtual ~Track_Widget ( )
{
redraw();
_track->remove( this );
}
Fl_Group * parent ( void ) const { return _track; }
int scroll_x ( void ) const { return timeline->ts_to_x( timeline->xoffset ); }

8
main.C
View File

@ -53,7 +53,13 @@ Timeline *timeline;
void cb_undo ( Fl_Widget *w, void *v )
{
static char pat[20];
Loggable::undo();
sprintf( pat, "undo %d", Loggable::undo_index() );
w->label( pat );
}
int
@ -65,6 +71,8 @@ main ( int argc, char **argv )
Fl::scheme( "plastic" );
Loggable::open( "history" );
Loggable::register_create( "Region", &Region::create );
timeline = new Timeline( 0, 0, 800, 600, "Timeline" );