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https://github.com/aaronsgiles/JPEGView.git
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92bdb55672
These are the sources for the final official release of JPEGView for the Mac, back in 1994.
1 line
1.9 KiB
C
1 line
1.9 KiB
C
/*********************************************************/
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/* This source code copyright (c) 1991-2001, Aaron Giles */
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/* See the Read Me file for licensing information. */
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/* Contact email: mac@aarongiles.com */
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/*********************************************************/
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#if THINK_C
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#include "THINK.Header"
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#elif applec
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#pragma load ":Headers:MPW.Header"
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#elif __MWERKS__
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//#include "MW.Header"
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#else
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#include "JPEGView.h"
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#endif
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/*
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* HandleColorChoice(theItem)
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*
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* Purpose: Accepts menu events from the Color menu
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* Inputs: theItem = the menu item number
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* Returns: nothing
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*
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*/
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void HandleColorChoice(short theItem)
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{
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ImageHandle theImage = FrontImage();
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short depth;
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if (!theImage) return;
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depth = (*(*theImage)->dmon)->depth;
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switch (theItem) {
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case colorSysItem:
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SendNewPalette(theImage, kAEPSystem);
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break;
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case colorGrayItem:
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SendNewPalette(theImage, kAEPGrayscale);
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break;
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case colorImageItem:
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SendNewPalette(theImage, kAEPImage);
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break;
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case colorQuantItem:
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if (depth <= 8) {
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Boolean spin = !(*theImage)->qpalette ||
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((*(*theImage)->qpalette)->pmEntries != (1 << depth));
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if (spin) StartSpinning();
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SendNewPalette(theImage, kAEPQuantized);
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if (spin) StopSpinning(&qd.arrow);
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}
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break;
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case colorDitherItem:
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SendDither(theImage, !Dithered(theImage));
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break;
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}
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}
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/*
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* HandleQualityChoice(theItem)
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*
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* Purpose: Accepts menu events from the Quality submenu
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* Inputs: theItem = the menu item number
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* Returns: nothing
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*
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*/
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void HandleQualityChoice(short theItem)
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{
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ImageHandle theImage = FrontImage();
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if (!theImage) return;
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switch (theItem) {
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case qualityVHighItem:
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SendQuality(theImage, kAEDQVeryHigh);
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break;
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case qualityHighItem:
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SendQuality(theImage, kAEDQHigh);
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break;
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case qualityMediumItem:
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SendQuality(theImage, kAEDQNormal);
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break;
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}
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}
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