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/* Copyright (C) 1996-2004, Ghostgum Software Pty Ltd. All rights reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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For more information about licensing, please refer to
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http://www.ghostscript.com/licensing/. For information on
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commercial licensing, go to http://www.artifex.com/licensing/ or
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contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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*/
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/* $Id: dwimg.h,v 1.11 2004/09/15 19:41:01 ray Exp $ */
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#ifndef dwimg_INCLUDED
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# define dwimg_INCLUDED
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/* Windows Image Window structure */
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typedef struct IMAGE_DEVICEN_S IMAGE_DEVICEN;
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struct IMAGE_DEVICEN_S {
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int used; /* non-zero if in use */
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int visible; /* show on window */
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char name[64];
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int cyan;
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int magenta;
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int yellow;
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int black;
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int menu; /* non-zero if menu item added to system menu */
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};
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#define IMAGE_DEVICEN_MAX 8
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typedef struct IMAGE_S IMAGE;
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struct IMAGE_S {
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void *handle;
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void *device;
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HWND hwnd;
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HBRUSH hBrush; /* background */
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int raster;
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unsigned int format;
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unsigned char *image;
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BITMAPINFOHEADER bmih;
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HPALETTE palette;
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int bytewidth;
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int devicen_gray; /* true if a single separation should be shown gray */
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IMAGE_DEVICEN devicen[IMAGE_DEVICEN_MAX];
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/* periodic redrawing */
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UINT update_timer; /* identifier */
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int update_tick; /* timer duration in milliseconds */
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int update_count; /* Number of WM_TIMER messages received */
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int update_interval; /* Number of WM_TIMER until refresh */
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int pending_update; /* We have asked for periodic updates */
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int pending_sync; /* We have asked for a SYNC */
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/* Window scrolling stuff */
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int cxClient, cyClient;
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int cxAdjust, cyAdjust;
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int nVscrollPos, nVscrollMax;
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int nHscrollPos, nHscrollMax;
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/* thread synchronisation */
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HANDLE hmutex;
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IMAGE *next;
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HWND hwndtext; /* handle to text window */
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int x, y, cx, cy; /* window position */
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};
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extern IMAGE *first_image;
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/* Main thread only */
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IMAGE *image_find(void *handle, void *device);
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IMAGE *image_new(void *handle, void *device);
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void image_delete(IMAGE *img);
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int image_size(IMAGE *img, int new_width, int new_height, int new_raster,
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unsigned int new_format, void *pimage);
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/* GUI thread only */
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void image_open(IMAGE *img);
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void image_close(IMAGE *img);
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void image_sync(IMAGE *img);
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void image_page(IMAGE *img);
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void image_presize(IMAGE *img, int new_width, int new_height, int new_raster,
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unsigned int new_format);
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void image_poll(IMAGE *img);
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void image_updatesize(IMAGE *img);
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#endif /* dwimg_INCLUDED */
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