trunk/Classes/MDObjects.m

//
//  MDObjects.m
//
//  Created by Toshi Nagata on Mon Mar 04 2002.
/*
    Copyright (c) 2000-2016 Toshi Nagata. All rights reserved.

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation version 2 of the License.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */

#import "MDObjects.h"

@implementation MDEventObject

- (id)init
{
        self = [super init];
        position = 0;
        MDEventInit(&event);
        return self;
}

- (id)initWithMDEvent: (const MDEvent *)ep
{
        self = [super init];
        position = 0;
        if (ep != NULL)
                MDEventCopy(&event, ep, 1);
        else
                MDEventInit(&event);
        return self;
}

- (void)dealloc
{
        MDEventClear(&event);
        [super dealloc];
}

- (MDEvent *)eventPtr
{
        return &event;
}

@end

@implementation MDTrackObject

- (id)init
{
        self = [super init];
        track = MDTrackNew();
        if (track == NULL) {
                [self release];
                return nil;
        }
        return self;
}

- (id)initWithMDTrack: (MDTrack *)inTrack
{
        self = [super init];
        track = inTrack;
        MDTrackRetain(track);
        return self;
}

- (void)dealloc
{
        MDTrackRelease(track);
        [super dealloc];
}

- (MDTrack *)track
{
    return track;
}
@end

@implementation IntGroupObject

- (id)init
{
        self = [super init];
        pointSet = IntGroupNew();
        if (pointSet == NULL) {
                [self release];
                return nil;
        }
        return self;
}

- (id)initWithMDPointSet: (IntGroup *)inPointSet
{
        self = [super init];
        pointSet = inPointSet;
        IntGroupRetain(pointSet);
        return self;
}

- (void)dealloc
{
        IntGroupRelease(pointSet);
        [super dealloc];
}

- (IntGroup *)pointSet
{
    return pointSet;
}

@end

@implementation MDSelectionObject

- (id)init
{
        self = [super init];
        if (self != nil) {
                startTick = endTick = kMDNegativeTick;
                track = NULL;
        }
        return self;
}

- (id)initWithMDPointSet: (IntGroup *)inPointSet
{
        self = [super initWithMDPointSet: inPointSet];
        if (self != nil) {
                startTick = endTick = kMDNegativeTick;
                track = NULL;
                isEndOfTrackSelected = NO;
        }
        return self;
}

- (BOOL)getStartTick: (MDTickType *)startTickPtr andEndTick: (MDTickType *)endTickPtr withMDTrack: (MDTrack *)inTrack
{
        if (startTick < 0 || endTick < 0 || track != inTrack) {
                int idx = -1;
                MDEvent *ep;
                MDPointer *ptr = MDPointerNew(inTrack);
                if (ptr == NULL)
                        return NO;
                startTick = endTick = kMDNegativeTick;
                while ((ep = MDPointerForwardWithPointSet(ptr, pointSet, &idx)) != NULL) {
                        MDTickType tick1 = MDGetTick(ep);
                        if (startTick < 0)
                                startTick = endTick = tick1;
                        if (MDHasDuration(ep)) {
                                MDTickType tick2 = tick1 + MDGetDuration(ep);
                                if (tick2 > endTick)
                                        endTick = tick2;
                        } else if (tick1 > endTick) {
                                endTick = tick1;
                        }
                }
                MDPointerRelease(ptr);
                if (isEndOfTrackSelected) {
                        MDTickType trackDuration = MDTrackGetDuration(inTrack);
                        if (startTick == kMDNegativeTick)
                                startTick = trackDuration;
                        if (endTick < trackDuration)
                                endTick = trackDuration;
                }
                if (startTick >= 0)
                        track = inTrack;
                else track = NULL;
        }
        *startTickPtr = startTick;
        *endTickPtr = endTick;
        return YES;
}

@end

@implementation MDTickRangeObject

- (id)initWithStartTick: (MDTickType)tick1 endTick: (MDTickType)tick2
{
        self = [super init];
        if (self != nil) {
                startTick = tick1;
                endTick = tick2;
        }
        return self;
}

@end

static void
addControlNameToMenu(int code, NSMenu *menu, id target, SEL action, int tagOffset)
{
        MDEvent event;
        char name[64];
        NSMenuItem *item;
        MDEventInit(&event);
        MDSetKind(&event, kMDEventControl);
        MDSetCode(&event, (code & 0x7f));
        MDEventToKindString(&event, name, sizeof name);
        [menu addItemWithTitle: [NSString stringWithUTF8String: name + 1]  //  Chop the "*" at the top
                action: action keyEquivalent: @""];
        item = (NSMenuItem *)[menu itemAtIndex: [menu numberOfItems] - 1];
        [item setTag: (code & 0x7f) + tagOffset];
        [item setTarget: target];
}

NSMenu *
MDMenuWithControlNames(id target, SEL action, int tagOffset)
{
        static unsigned char sControlTopMenuCodes[] = { 1, 7, 10, 11, 64, 71, 72, 73, 74 };
        int i, j;
        NSMenu *submenu, *menu;
        menu = [[[NSMenu alloc] initWithTitle: @"Control names"] autorelease];
        for (i = 0; i < sizeof(sControlTopMenuCodes) / sizeof(sControlTopMenuCodes[0]); i++)
                addControlNameToMenu(sControlTopMenuCodes[i], menu, target, action, tagOffset);
        for (i = 0; i < 127; i++) {
                if (i % 32 == 0) {
                        [menu addItemWithTitle: [NSString stringWithFormat: @"%d-%d", i, i + 31]
                                action: nil keyEquivalent: @""];
                        submenu = [[[NSMenu alloc] initWithTitle: @""] autorelease];
                        [[menu itemAtIndex: [menu numberOfItems] - 1]
                                setSubmenu: submenu];
                }
                for (j = sizeof(sControlTopMenuCodes) / sizeof(sControlTopMenuCodes[0]) - 1; j >= 0; j--) {
                        if (i == sControlTopMenuCodes[j])
                                break;
                }
                if (j < 0)
                        addControlNameToMenu(i, submenu, target, action, tagOffset);
        }
        return menu;
}

static void
addMetaNameToMenu(int code, NSMenu *menu, id target, SEL action, int tagOffset)
{
        MDEvent event;
        char name[64];
        NSMenuItem *item;
        MDEventInit(&event);
        MDSetKind(&event, MDEventSMFMetaNumberToEventKind(code));
        MDSetCode(&event, code);
        MDEventToKindString(&event, name, sizeof name);
        [menu addItemWithTitle: [NSString stringWithUTF8String: name + 1]  //  Chop the "@" at the top
                action: action keyEquivalent: @""];
        item = (NSMenuItem *)[menu itemAtIndex: [menu numberOfItems] - 1];
        [item setTag: (code & 0x7f) + tagOffset];
        [item setTarget: target];
}

NSMenu *
MDMenuWithMetaNames(id target, SEL action, int tagOffset)
{
        static unsigned char sMetaTopMenuCodes[] = {
                kMDMetaTempo, kMDMetaSMPTE, kMDMetaTimeSignature, kMDMetaKey,
                kMDMetaLyric, kMDMetaMarker, kMDMetaCuePoint,
                kMDMetaPortNumber
        };
        int i, j;
        NSMenu *submenu, *menu;
        menu = [[[NSMenu alloc] initWithTitle: @"Meta event names"] autorelease];
        for (i = 0; i < sizeof(sMetaTopMenuCodes) / sizeof(sMetaTopMenuCodes[0]); i++)
                addMetaNameToMenu(sMetaTopMenuCodes[i], menu, target, action, tagOffset);
        for (i = 0; i < 127; i++) {
                if (i % 32 == 0) {
                        [menu addItemWithTitle: [NSString stringWithFormat: @"%d-%d", i, i + 31]
                                action: nil keyEquivalent: @""];
                        submenu = [[[NSMenu alloc] initWithTitle: @""] autorelease];
                        [[menu itemAtIndex: [menu numberOfItems] - 1]
                                setSubmenu: submenu];
                }
                for (j = sizeof(sMetaTopMenuCodes) / sizeof(sMetaTopMenuCodes[0]) - 1; j >= 0; j--) {
                        if (i == sMetaTopMenuCodes[j])
                                break;
                }
                if (j < 0)
                        addMetaNameToMenu(i, submenu, target, action, tagOffset);
        }
        return menu;
}