JPEGView/Headers/JPEGView.h

/*********************************************************/
/* This source code copyright (c) 1991-2001, Aaron Giles */
/* See the Read Me file for licensing information.       */
/* Contact email: mac@aarongiles.com                     */
/*********************************************************/

/*
 * JPEGView header file, to be #included with every JPEGView code segment
 *
 * Contains (in order):
 *		Constants (#defines and enums)
 *		In-line functions (#defines)
 *		Typedefs
 *		Structures
 *		Function and Variable Prototypes
 *
 */

// Make sure we don't include any unnecessary glue
#define SystemSevenOrLater 1

#if THINK_C
#define applec 1
#endif

// Standard Mac includes
#include <AEObjects.h>
#include <AEPackObject.h>
#include <AERegistry.h>
#include <Aliases.h>
#include <AppleEvents.h>
#include <Balloons.h>
#include <Controls.h>
#include <Desk.h>
#include <Devices.h>
#include <Dialogs.h>
#include <DiskInit.h>
#include <Drag.h>
#include <Errors.h>
#include <Events.h>
#include <Files.h>
#include <Finder.h>
#include <FixMath.h>
#include <Folders.h>
#include <Fonts.h>
#include <FragLoad.h>
#include <GestaltEqu.h>
#include <Icons.h>
#include <ImageCompression.h>
#include <IntlResources.h>
#include <LowMem.h>
#include <Memory.h>
#include <Menus.h>
#include <Movies.h>
#include <Notification.h>
#include <OSUtils.h>
#include <Palettes.h>
#include <Printing.h>
#include <Processes.h>
#include <QDOffscreen.h>
#include <Quickdraw.h>
#include <Resources.h>
#include <Retrace.h>
#include <Scrap.h>
#include <Script.h>
#include <StandardFile.h>
#include <TextEdit.h>
#include <TextUtils.h>
#include <Timer.h>
#include <ToolUtils.h>
#include <Traps.h>
#include <Types.h>
#include <Values.h>
#include <Windows.h>

// JPEGView resource definitions
#include "JPEGView.r.h"

/*** Compile-time constants ***/
#ifndef USE_ASM
#if defined(powerc) || defined (__powerc)
#define USE_ASM 0
#else
#define USE_ASM 1
#endif
#endif

/*** General constants ***/
enum
{
	kStackSize = 48L * 1024L,
	kMaxPorts = 100,

	kDialogClose = 0x7acd,
	kDialogCancel = 0x7ace,
	kDialogOK = 0x7acf,

	kCodeResource = 'CODE',
	kPictResource = 'PICT',

	kBSChar = 0x08,
	kTabChar = 0x09,
	kHelpChar = 0x05,
	kReturnChar = 0x0d,
	kEnterChar = 0x03,
	kEscapeChar = 0x1b,
	kHomeChar = 0x01,
	kEndChar = 0x04,
	kPageUpChar = 0x0b,
	kPageDownChar = 0x0c,
	kLeftArrowChar = 0x1c,
	kRightArrowChar = 0x1d,
	kUpArrowChar = 0x1e,
	kDownArrowChar = 0x1f,

	kClockFreq = 60,
	kSelRectSpeed = 5,
	kUpdateDelay = 300,
	kSleepTime = kSelRectSpeed,

	kMinSelection = 16,
	kHeaderSize = 512,
	kImageID = 'Im',

	kTitleBarHeight = 19,
	kFloatingTitleBarHeight = 11,
	kWindowStepDown = kTitleBarHeight - 1,
	kWindowStepRight = kTitleBarHeight - 1,
	kWindowBorderWidth = 6,
	kWindowBorderHeight = 5,

	kFileFormats = 8,
	kInvalidType = -1,

	kNumStrings = strLast,
	kNumCursors = rLastSpin - rFirstSpin + 1,

	kSpinFrequency = 6,
	kSpinContinue = kNumCursors,

	errNotADirectory = -31111,
	errBadJPEG = -31112,

	codecProgressUpdateScaling = -1,
	codecProgressUpdateDithering = -2,
	codecProgressStartAdjust = -3,
	codecProgressStopAdjust = -4,
	codecProgressRealOpen = -5,
	codecProgressRealClose = -6
};

/*** State constants ***/
enum {
	bfOffscreen = 0x0001,		// bf ==> gBitsFlags constants
	bfOnscreen = 0x0002,
	bfQuantize = 0x0004,
	bfUseSlideProgress = 0x0008,
	bfForceFull = 0x0010
};

enum {
	plNone,						// pl ==> Palettes
	plSys,
	plGrey,
	plImage,
	plQuant
};

enum {
	ofNever,					// of ==> Open Full Screen Options
	ofAlways,
	ofAsk,
	ofNoMatterWhat
};

enum {
	osDeepest,					// os ==> Open Screen options
	osLargest,
	osMain
};

enum {
	otSame,						// ot ==> Open Statistics options
	otMain
};

enum {
	swNone,						// su ==> Startup Options
	swOpen,
	swSlide,
	swAutoSlide
};

enum {
	aqAlways,					// aq ==> autoQuantize options
	aqOnly,
	aqNever
};

enum {
	sqAlways,					// sq ==> saveQuantize options
	sqOnly,
	sqNever
};

enum {
	ubAlways,					// ub ==> useBitmaps options
	ubOptional,
	ubNever
};

enum {
	iqVHigh,					// iq ==> imageQuality options
	iqHigh,
	iqMedium,
	iqLow
};

enum {
	bgMaximal,