237 lines
7.3 KiB
C
237 lines
7.3 KiB
C
/* graphics.h -
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*
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* *********************************************************************
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* * Copyright (C) 1985, 1990 Regents of the University of California. *
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* * Permission to use, copy, modify, and distribute this *
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* * software and its documentation for any purpose and without *
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* * fee is hereby granted, provided that the above copyright *
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* * notice appear in all copies. The University of California *
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* * makes no representations about the suitability of this *
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* * software for any purpose. It is provided "as is" without *
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* * express or implied warranty. Export of this software outside *
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* * of the United States of America may require an export license. *
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* *********************************************************************
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*
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* This file contains a bunch of macros that look like
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* normal procedure calls but really indirect through procedure
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* pointers in order to achieve graphics display independence.
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*/
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/* rcsid "$Header: /usr/cvsroot/magic-8.0/graphics/graphics.h,v 1.3 2010/06/24 12:37:18 tim Exp $" */
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#ifndef _MAGIC__GRAPHICS__GRAPHICS_H
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#define _MAGIC__GRAPHICS__GRAPHICS_H
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#include "utils/magic.h"
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#include "utils/geometry.h"
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/* data structures */
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typedef struct {
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int idx, mask, color, outline, fill, stipple;
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char shortname;
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char *longname;
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} GR_STYLE_LINE;
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typedef struct { /* Colormap table entry */
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char *name;
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unsigned char red;
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unsigned char green;
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unsigned char blue;
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} colorEntry;
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/* Housekeeping and initialization routines */
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extern bool (*GrInitPtr)();
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extern void (*GrClosePtr)();
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extern int (*GrTextSizePtr)();
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/*
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* Display painting and text routines
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*
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* You must call GrLock() before using these, and
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* call GrUnlock() afterwards.
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*/
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extern void (*GrLockPtr)();
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extern void (*GrUnlockPtr)();
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extern bool GrHaveLock();
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extern void GrClipTo();
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extern void GrClipBox();
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extern void GrClipLine();
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extern bool GrPutText();
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extern void GrFillPolygon();
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extern void (*GrDrawGlyphPtr)();
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extern void (*GrBitBltPtr)();
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extern int (*GrReadPixelPtr)();
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extern void (*GrFlushPtr)();
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/* Tablet routines */
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extern void (*GrEnableTabletPtr)();
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extern void (*GrDisableTabletPtr)();
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extern void (*GrSetCursorPtr)();
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/* graphics routines that are called in the same way for all displays */
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extern int GrLoadStyles();
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extern bool GrLoadCursors();
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extern bool GrSetDisplay();
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extern bool GrIsDisplay();
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extern void GrLabelSize();
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extern void GrSetStuff();
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extern void GrDrawFastBox();
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extern void GrGuessDisplayType();
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extern int GrGetStyleFromName();
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extern bool GrDrawGlyphNum();
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#define GrFastBox(x) GrDrawFastBox(x, 0)
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/* external color map routines */
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extern bool GrReadCMap(), GrSaveCMap();
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extern bool GrGetColor(), GrPutColor();
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extern int GrNameToColor();
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extern void GrPutManyColors();
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extern void (*GrSetCMapPtr)();
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extern void GrResetCMap();
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/* Routines for windows, called only if non-null. See SUN160 driver for
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* details.
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*/
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extern bool (*GrCreateWindowPtr)(); /* Passed a window just after it is
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* created.
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*/
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extern void (*GrDeleteWindowPtr)(); /* Passed a window just before it
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* is destroyed.
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*/
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extern void (*GrDamagedPtr)(); /* Called at a conventient time after
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* receiving a SIG_WINCH signal.
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*/
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extern void (*GrUpdateIconPtr)(); /* Adjust text on icon.
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*/
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extern bool (*GrEventPendingPtr)(); /* Check for pending graphics events.
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*/
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extern void (*GrConfigureWindowPtr)(); /* Called to reconfigure size/location
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* of an existing window.
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*/
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extern void (*GrOverWindowPtr)(); /* Raise window to top of stack.
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*/
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extern void (*GrUnderWindowPtr)(); /* Lower window to bottom of stack.
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*/
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extern int (*GrWindowIdPtr)(); /* Get the window ID from a window name
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*/
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extern char *(*GrWindowNamePtr)(); /* Get the window name from a MagWin ptr.
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*/
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extern bool (*GrGetCursorPosPtr)(); /* Get the current cursor position
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*/
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extern bool (*GrGetCursorRootPosPtr)(); /* Get the current cursor position
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* in root (screen) coordinates
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*/
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/* Backing store mechanism (added 4/2/05) */
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extern bool (*GrGetBackingStorePtr)();
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extern bool (*GrScrollBackingStorePtr)();
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extern void (*GrPutBackingStorePtr)();
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extern void (*GrCreateBackingStorePtr)();
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extern void (*GrFreeBackingStorePtr)();
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/* Routines called by the signals module just before Magic is stopped
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* (such as via ^Z) and just after it is resumed.
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*/
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extern void (*GrStopPtr)();
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extern void (*GrResumePtr)();
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#define GrStop (*GrStopPtr)
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#define GrResume (*GrResumePtr)
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/* C99 compat */
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extern void GrClipTriangle();
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extern void GrBox();
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extern bool GrFontText();
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extern void GrDiagonal();
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extern bool grTkLoadFont();
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extern void grTkFreeFonts();
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extern bool grtoglLoadFont();
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extern void GrDrawTriangleEdge();
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extern bool GrReadGlyphs();
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/* Number of colors defined in the colormap */
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extern int GrNumColors;
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/* Different graphics (OpenGL vs. X11, for instance) have different
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* definitions of line and rectangle/polygon coordinates. Usually
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* this boils down to a single pixel difference on rectangle edges.
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* GrPixelCorrect should be set to 0 for OpenGL and other real-valued
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* coordinate systems, 1 for X11 and other pixel-based systems.
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*/
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extern int GrPixelCorrect;
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/* The size of the screen in screen coordinates */
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extern Rect GrScreenRect;
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/* The size of crosses (drawn for zero-size boxes), in pixels. */
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extern Rect GrCrossRect;
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/* Multiples of the grid spacing which we draw lighter, for a fading effect */
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extern unsigned char GrGridMultiple;
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/* Style tables */
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extern GR_STYLE_LINE *GrStyleTable;
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extern int **GrStippleTable;
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extern int GrStyleNames[];
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#ifndef lint
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/* Constants for easy access */
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#define GrLock (*GrLockPtr)
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#define GrUnlock (*GrUnlockPtr)
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#define GrInit (*GrInitPtr)
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#define GrClose (*GrClosePtr)
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#define GrSetCMap (*GrSetCMapPtr)
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#define GrTextSize (*GrTextSizePtr)
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#define GrDrawGlyph (*GrDrawGlyphPtr)
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#define GrBitBlt (*GrBitBltPtr)
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#define GrReadPixel (*GrReadPixelPtr)
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#define GrFlush (*GrFlushPtr)
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#define GrEnableTablet (*GrEnableTabletPtr)
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#define GrDisableTablet (*GrDisableTabletPtr)
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#define GrGetCursorPos (*GrGetCursorPosPtr)
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#define GrGetCursorRootPos (*GrGetCursorRootPosPtr)
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#define GrGetButtons (*GrGetButtonsPtr)
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#define GrSetCursor (*GrSetCursorPtr)
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#endif
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enum { DISPLAY_IDLE, DISPLAY_IN_PROGRESS, DISPLAY_BREAK_PENDING, DISPLAY_SUSPEND };
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extern unsigned char GrDisplayStatus;
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/* constants */
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/* Rectangle filling styles.
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* (note: this must match the array in grDStyle.c)
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*/
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#define GR_STSOLID 0
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#define GR_STCROSS 1
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#define GR_STOUTLINE 2
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#define GR_STSTIPPLE 3
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#define GR_STGRID 4
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/* 4 text sizes that are specified by the graphics driver, plus a 5th one.
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* This last one is for systems that allow the user to specify a default font
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* (such as a sun) -- on other systems it's size is decided by the driver.
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*
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* Note:
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* These must be in sequential, ascending order.
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*/
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#define GR_TEXT_SMALL 0
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#define GR_TEXT_MEDIUM 1
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#define GR_TEXT_LARGE 2
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#define GR_TEXT_XLARGE 3
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#define GR_TEXT_DEFAULT 4
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/* Default cursor position -- used on startup and if we can't read the cursor */
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#define GR_CURSOR_X 100
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#define GR_CURSOR_Y 100
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/* Special full-screen access for window manager only */
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#define GR_LOCK_SCREEN (MagWindow *)(-1)
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#endif /* _MAGIC__GRAPHICS__GRAPHICS_H */
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