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- /* Copyright (C) 1989, 2000 Aladdin Enterprises. All rights reserved.
-
- This software is provided AS-IS with no warranty, either express or
- implied.
-
- This software is distributed under license and may not be copied,
- modified or distributed except as expressly authorized under the terms
- of the license contained in the file LICENSE in this distribution.
-
- For more information about licensing, please refer to
- http://www.ghostscript.com/licensing/. For information on
- commercial licensing, go to http://www.artifex.com/licensing/ or
- contact Artifex Software, Inc., 101 Lucas Valley Road #110,
- San Rafael, CA 94903, U.S.A., +1(415)492-9861.
- */
- /* $Id: gdevx.h,v 1.7 2002/06/16 07:25:26 lpd Exp $ */
- /* Definitions for X Windows drivers */
- /* Requires gxdevice.h and x_.h */
- #ifndef gdevx_INCLUDED
- # define gdevx_INCLUDED
- /* Define the type of an X pixel. */
- typedef unsigned long x_pixel;
- #include "gdevbbox.h"
- #include "gdevxcmp.h"
- /* Declare the X resource tables compiled separately in gdevxres.c. */
- extern XtResource gdev_x_resources[];
- extern const int gdev_x_resource_count;
- extern String gdev_x_fallback_resources[];
- /* Define PostScript to X11 font name mapping */
- /*
- * x11fontlist is only used within x11fontmap.
- * The names array is managed by Xlib, so the structure is simple.
- */
- typedef struct x11fontlist_s {
- char **names;
- int count;
- } x11fontlist;
- typedef struct x11fontmap_s x11fontmap;
- struct x11fontmap_s {
- char *ps_name;
- char *x11_name;
- x11fontlist std, iso;
- x11fontmap *next;
- };
- #define private_st_x11fontmap() /* in gdevxini.c */\
- gs_private_st_ptrs3(st_x11fontmap, x11fontmap, "x11fontmap",\
- x11fontmap_enum_ptrs, x11fontmap_reloc_ptrs, ps_name, x11_name, next)
- /* Define the X Windows device */
- typedef struct gx_device_X_s {
- gx_device_bbox_common; /* if target != 0, is image buffer */
- /*
- * Normally, an X device has an image buffer iff target != 0. However,
- * the bbox device sometimes sets target to NULL temporarily, so we need
- * a separate flag to record whether this device is buffered.
- */
- bool is_buffered;
- bool IsPageDevice;
- long MaxBitmap;
- byte *buffer; /* full-window image */
- long buffer_size;
- /* An XImage object for writing bitmap images to the screen */
- XImage image;
- /* Global X state */
- Display *dpy;
- Screen *scr;
- XVisualInfo *vinfo;
- Colormap cmap;
- Window win;
- GC gc;
- /* An optional Window ID supplied as a device parameter */
- Window pwin;
- /* A backing pixmap so X will handle exposure automatically */
- Pixmap bpixmap; /* 0 if useBackingPixmap is false, */
- /* or if it can't be allocated */
- int ghostview; /* flag to tell if ghostview is in control */
- Window mwin; /* window to receive ghostview messages */
- gs_matrix initial_matrix; /* the initial transformation */
- Atom NEXT, PAGE, DONE; /* Atoms used to talk to ghostview */
- struct {
- gs_int_rect box; /* region needing updating */
- long area; /* total area of update */
- long total; /* total of individual area updates */
- int count; /* # of updates since flush */
- } update;
- Pixmap dest; /* bpixmap if non-0, else use win */
- x_pixel colors_or; /* 'or' of all device colors used so far */
- x_pixel colors_and; /* 'and' ditto */
- /* An intermediate pixmap for the stencil case of copy_mono */
- struct {
- Pixmap pixmap;
- GC gc;
- int raster, height;
- } cp;
- /* Structure for dealing with the halftone tile. */
- /* Later this might become a multi-element cache. */
- struct {
- Pixmap pixmap;
- Pixmap no_pixmap; /* kludge to get around X bug */
- gx_bitmap_id id;
- int width, height, raster;
- x_pixel fore_c, back_c;
- } ht;
- /* Cache the function and fill style from the GC */
- int function;
- int fill_style;
- Font fid;
- #define X_SET_FILL_STYLE(xdev, style)\
- BEGIN\
- if (xdev->fill_style != (style))\
- XSetFillStyle(xdev->dpy, xdev->gc, (xdev->fill_style = (style)));\
- END
- #define X_SET_FUNCTION(xdev, func)\
- BEGIN\
- if (xdev->function != (func))\
- XSetFunction(xdev->dpy, xdev->gc, (xdev->function = (func)));\
- END
- #define X_SET_FONT(xdev, font)\
- BEGIN\
- if (xdev->fid != (font))\
- XSetFont(xdev->dpy, xdev->gc, (xdev->fid = (font)));\
- END
- x_pixel back_color, fore_color;
- Pixel background, foreground;
- /*
- * The color management structure is defined in gdevxcmp.h and is
- * managed by the code in gdevxcmp.c.
- */
- x11_cman_t cman;
- #define NOTE_COLOR(xdev, pixel)\
- (xdev->colors_or |= (pixel),\
- xdev->colors_and &= (pixel))
- #define X_SET_BACK_COLOR(xdev, pixel)\
- BEGIN\
- if (xdev->back_color != (pixel)) {\
- xdev->back_color = (pixel);\
- NOTE_COLOR(xdev, pixel);\
- XSetBackground(xdev->dpy, xdev->gc, (pixel));\
- }\
- END
- #define X_SET_FORE_COLOR(xdev, pixel)\
- BEGIN\
- if (xdev->fore_color != (pixel)) {\
- xdev->fore_color = (pixel);\
- NOTE_COLOR(xdev, pixel);\
- XSetForeground(xdev->dpy, xdev->gc, (pixel));\
- }\
- END
- /* Defaults set by resources */
- Pixel borderColor;
- Dimension borderWidth;
- String geometry;
- int maxGrayRamp, maxRGBRamp;
- String palette;
- String regularFonts;
- String symbolFonts;
- String dingbatFonts;
- x11fontmap *regular_fonts;
- x11fontmap *symbol_fonts;
- x11fontmap *dingbat_fonts;
- Boolean useXFonts, useFontExtensions, useScalableFonts, logXFonts;
- float xResolution, yResolution;
- /* Flags work around various X server problems. */
- Boolean useBackingPixmap;
- Boolean useXPutImage;
- Boolean useXSetTile;
- /*
- * Parameters for the screen update algorithms.
- */
- /*
- * Define whether to update after every write, for debugging.
- * Note that one can obtain the same effect by setting any of
- */
- bool AlwaysUpdate;
- /*
- * Define the maximum size of the temporary pixmap for copy_mono
- * that we are willing to leave lying around in the server
- * between uses.
- */
- int MaxTempPixmap;
- /*
- * Define the maximum size of the temporary image created in memory
- * for get_bits_rectangle.
- */
- int MaxTempImage;
- /*
- * Define the maximum buffered updates before doing a screen write.
- */
- int MaxBufferedTotal; /* sum of individual areas */
- int MaxBufferedArea; /* area of merged bounding box */
- int MaxBufferedCount; /* number of writes */
- /*
- * Buffered text awaiting display.
- */
- struct {
- int item_count;
- #define IN_TEXT(xdev) ((xdev)->text.item_count != 0)
- int char_count;
- gs_int_point origin;
- int x; /* after last buffered char */
- #define MAX_TEXT_ITEMS 12
- XTextItem items[MAX_TEXT_ITEMS];
- #define MAX_TEXT_CHARS 25
- char chars[MAX_TEXT_CHARS];
- } text;
- /*
- * All the GC parameters are set correctly when we buffer the first
- * character: we must call DRAW_TEXT before resetting any of them.
- * DRAW_TEXT assumes xdev->text.{item,char}_count > 0.
- */
- #define DRAW_TEXT(xdev)\
- XDrawText(xdev->dpy, xdev->dest, xdev->gc, xdev->text.origin.x,\
- xdev->text.origin.y, xdev->text.items, xdev->text.item_count)
- } gx_device_X;
- #define private_st_device_X() /* in gdevx.c */\
- gs_public_st_suffix_add4_final(st_device_X, gx_device_X,\
- "gx_device_X", device_x_enum_ptrs, device_x_reloc_ptrs,\
- gx_device_finalize, st_device_bbox, buffer, regular_fonts,\
- symbol_fonts, dingbat_fonts)
- /* Send an event to the Ghostview process */
- void gdev_x_send_event(gx_device_X *xdev, Atom msg);
- /* function to keep track of screen updates */
- void x_update_add(gx_device_X *, int, int, int, int);
- void gdev_x_clear_window(gx_device_X *);
- int x_catch_free_colors(Display *, XErrorEvent *);
- /* Number used to distinguish when resolution was set from the command line */
- #define FAKE_RES (16*72)
- /* ------ Inter-module procedures ------ */
- /* Exported by gdevxcmp.c for gdevxini.c */
- int gdev_x_setup_colors(gx_device_X *);
- void gdev_x_free_colors(gx_device_X *);
- void gdev_x_free_dynamic_colors(gx_device_X *);
- /* Exported by gdevxini.c for gdevx.c */
- int gdev_x_open(gx_device_X *);
- int gdev_x_close(gx_device_X *);
- /* Driver procedures exported for gdevx.c */
- dev_proc_map_rgb_color(gdev_x_map_rgb_color); /* gdevxcmp.c */
- dev_proc_map_color_rgb(gdev_x_map_color_rgb); /* gdevxcmp.c */
- dev_proc_get_params(gdev_x_get_params); /* gdevxini.c */
- dev_proc_put_params(gdev_x_put_params); /* gdevxini.c */
- dev_proc_get_xfont_procs(gdev_x_get_xfont_procs); /* gdevxxf.c */
- dev_proc_finish_copydevice(gdev_x_finish_copydevice); /* gdevxini.c */
- #endif /* gdevx_INCLUDED */
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